CN112594867A - Defrosting control method, device and system of air conditioner and nonvolatile storage medium - Google Patents
Defrosting control method, device and system of air conditioner and nonvolatile storage medium Download PDFInfo
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- CN112594867A CN112594867A CN202011439970.3A CN202011439970A CN112594867A CN 112594867 A CN112594867 A CN 112594867A CN 202011439970 A CN202011439970 A CN 202011439970A CN 112594867 A CN112594867 A CN 112594867A
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- 238000010257 thawing Methods 0.000 title claims abstract description 64
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 57
- 238000004378 air conditioning Methods 0.000 claims abstract description 23
- 239000003507 refrigerant Substances 0.000 claims description 44
- 230000001276 controlling effect Effects 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 11
- 238000004590 computer program Methods 0.000 claims description 7
- 238000001704 evaporation Methods 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 13
- 230000002401 inhibitory effect Effects 0.000 abstract description 10
- 230000000875 corresponding Effects 0.000 description 4
- 230000001808 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 230000002035 prolonged Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003287 optical Effects 0.000 description 1
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Classifications
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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
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
- F25B47/022—Defrosting cycles hot gas defrosting
- F25B47/025—Defrosting cycles hot gas defrosting by reversing the cycle
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
Abstract
The invention discloses a defrosting control method, device and system of an air conditioner and a nonvolatile storage medium. Wherein, this defrosting control system of air conditioner includes: a compressor; a guide duct, a first end of which is connected to an exhaust duct of the compressor; the air conditioner condenser is connected with the second end of the guide pipeline and is used for detecting whether the temperature value of the water pipeline of the condensed water pipeline is less than or equal to the frosting temperature value or not; and the two-way valve is arranged between the guide pipeline and the exhaust pipeline and is used for opening when the temperature value of the water pipeline is less than or equal to the frosting temperature value and the duration time is greater than or equal to a time threshold value and conveying the target gas in the compressor to the air-conditioning condenser through the guide pipeline. The invention solves the technical problems that the air conditioner needs to stop the compressor and then start the compressor in the process of inhibiting frosting in the prior art, so that the heat exchange efficiency of the whole machine is low and the defrosting effect is poor.
Description
Technical Field
The invention relates to the field of air conditioner control, in particular to a defrosting control method, device and system of an air conditioner and a nonvolatile storage medium.
Background
The defrosting principle of the existing air conditioner is that the air conditioner is switched from heating operation to cooling operation, so that the temperature of a condenser on the outdoor side is increased to be more than 0 ℃, and the defrosting purpose is achieved. In the scheme, the fan at the inner side of the air conditioner room needs to stop running, so that the air conditioner is prevented from blowing cold air into a room, and further the heat exchange efficiency of the whole machine is low and the defrosting effect is poor.
For example, a non-stop defrosting scheme specially for an air conditioner with a bipolar compressor system is proposed in the prior art, and the air conditioner system is composed of a main refrigerant system and an auxiliary refrigerant system, and a corresponding main control system and an auxiliary control system. The control system of the invention does not need to stop the compressor and then start the compressor in the process of inhibiting frosting, and can reduce the system loss to a certain extent.
However, the non-stop defrosting scheme of the conventional air conditioner with the bipolar compressor system has high cost in the implementation process, only provides a solution for the bipolar compression system, has poor popularization and application performance, and cannot solve the problem that the air conditioner needs to stop and then start the compressor in the frosting inhibition process in a general meaning.
In view of the above problems, no effective solution has been proposed.
Disclosure of Invention
The embodiment of the invention provides a defrosting control method, a defrosting control device and a defrosting control system of an air conditioner and a nonvolatile storage medium, which are used for at least solving the technical problems that in the prior art, the air conditioner needs to stop a compressor and then start the compressor in the process of inhibiting frosting, so that the heat exchange efficiency of the whole machine is low and the defrosting effect is poor.
According to an aspect of an embodiment of the present invention, there is provided a defrosting control system of an air conditioner, including: a compressor; a guide duct, a first end of which is connected to an exhaust duct of the compressor; the air conditioner condenser is connected with the second end of the guide pipeline and is used for detecting whether the temperature value of the water pipeline of the condensed water pipeline is less than or equal to the frosting temperature value or not; and the two-way valve is arranged between the guide pipeline and the exhaust pipeline and is used for opening when the temperature value of the water pipeline is less than or equal to the frosting temperature value and the duration time is greater than or equal to a time threshold value and conveying the target gas in the compressor to the air-conditioning condenser through the guide pipeline.
Optionally, the two-way valve is further configured to control the target gas to be unidirectionally delivered from the compressor to the air-conditioning condenser within a predetermined time period, where the state of the two-way valve includes: an on state and an off state.
Optionally, the system further includes: the four-way valve is connected with the compressor, and the compressor is also used for outputting a refrigerant through the four-way valve when the air conditioner is in heating operation; the air conditioner evaporator is connected with the compressor through the four-way valve and is used for carrying out evaporation and heat dissipation treatment on the received refrigerant and outputting the refrigerant of the refrigerant; the air conditioner condenser is connected with the air conditioner evaporator through the four-way valve and is also used for absorbing heat of the received refrigerant in the air conditioner condenser.
Optionally, the system further includes: a refrigerant conveying pipeline, wherein a first end of the refrigerant conveying pipeline is connected with the air conditioner condenser, and a second end of the refrigerant conveying pipeline is connected with an air suction port of the compressor; the air conditioner condenser is also used for being connected with the air suction port of the compressor through the refrigerant conveying pipeline and conveying the refrigerant absorbing heat back to the compressor through the air suction port.
Optionally, the connection position of the guide pipeline and the air conditioner condenser is the middle position of the air conditioner condenser; the connection position of the four-way valve and the air conditioner condenser is an upper position relative to the middle position; the connection position of the first end of the refrigerant conveying pipeline and the air conditioner condenser is a lower position relative to the middle position.
According to another aspect of the embodiments of the present invention, there is also provided a defrosting control method of an air conditioner, including: detecting whether the temperature value of the water pipeline of the condensed water pipeline is less than or equal to the frosting temperature value or not; if the detected water pipeline temperature value is smaller than or equal to the frosting temperature value, detecting whether the duration of the water pipeline temperature value smaller than or equal to the frosting temperature value is larger than or equal to a duration threshold value; and if the duration is detected to be greater than or equal to the duration threshold, controlling a two-way valve connected between a compressor and an air-conditioning condenser to be opened, and conveying the target gas in the compressor to the air-conditioning condenser through a guide pipeline, wherein the first end of the guide pipeline is connected with an exhaust pipeline of the compressor, the second end of the guide pipeline is connected with the exhaust pipeline of the compressor, and the two-way valve is arranged between the guide pipeline and the exhaust pipeline.
Optionally, controlling a two-way valve connected between a compressor and an air conditioner condenser to open, and delivering a target gas in the compressor to the air conditioner condenser through a guide pipeline, includes: controlling the two-way valve to be opened within a preset time period, and unidirectionally conveying the target gas from the compressor to the air-conditioning condenser, wherein the state of the two-way valve comprises the following steps: an on state and an off state.
According to another aspect of the embodiments of the present invention, there is also provided a defrosting control apparatus of an air conditioner, including: the first detection module is used for detecting whether the temperature value of the water pipeline of the condensed water pipeline is less than or equal to the frosting temperature value or not; the second detection module is used for detecting whether the duration of the water pipeline temperature value smaller than or equal to the frosting temperature value is larger than or equal to a duration threshold value or not if the water pipeline temperature value is detected to be smaller than or equal to the frosting temperature value; and the control module is used for controlling a two-way valve connected between a compressor and an air conditioner condenser to be opened and conveying the target gas in the compressor to the air conditioner condenser through a guide pipeline if the duration is detected to be greater than or equal to the duration threshold, wherein the first end of the guide pipeline is connected with an exhaust pipeline of the compressor, the second end of the guide pipeline is connected with the exhaust pipeline of the compressor, and the two-way valve is arranged between the guide pipeline and the exhaust pipeline.
According to another aspect of the embodiments of the present invention, there is also provided a non-volatile storage medium storing a plurality of instructions, the instructions being adapted to be loaded by a processor and to perform the defrosting control method of an air conditioner.
According to another aspect of the embodiments of the present invention, there is also provided a processor for executing a program, wherein the program is configured to execute the defrosting control method of the air conditioner when running.
According to another aspect of the embodiments of the present invention, there is also provided an electronic device including a memory in which a computer program is stored and a processor configured to run the computer program to perform the defrosting control method of the air conditioner.
In an embodiment of the invention, the compressor is used; a guide duct, a first end of which is connected to an exhaust duct of the compressor; the air conditioner condenser is connected with the second end of the guide pipeline and is used for detecting whether the temperature value of the water pipeline of the condensed water pipeline is less than or equal to the frosting temperature value or not; the two-way valve is arranged between the guide pipeline and the exhaust pipeline and is used for being opened when the temperature value of the water pipeline is less than or equal to the frosting temperature value and the duration time is greater than or equal to the duration time threshold value, and the target gas in the compressor is conveyed to the air conditioner condenser through the guide pipeline, so that the aim that the air conditioner does not need to be stopped and restarted in the frosting inhibition process is achieved, the technical effects of improving the heat exchange efficiency and the defrosting effect of the whole machine are achieved, and the technical problems that the air conditioner needs to be stopped and restarted in the frosting inhibition process in the prior art, the heat exchange efficiency of the whole machine is low, and the defrosting effect is poor are solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a schematic structural view of a defrosting control system of an air conditioner according to an embodiment of the present invention;
fig. 2 is a schematic structural view of an alternative defrosting control system of an air conditioner according to an embodiment of the present invention;
fig. 3 is a flowchart of a defrosting control method of an air conditioner according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a defrosting control device of an air conditioner according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example 1
According to an embodiment of the present invention, there is provided an embodiment of a defrosting control system of an air conditioner, and fig. 1 is a schematic structural diagram of the defrosting control system of the air conditioner according to the embodiment of the present invention, and as shown in fig. 1, the defrosting control system of the air conditioner includes: compressor, exhaust duct, direction pipeline, two-way valve and air conditioner condenser, wherein:
a compressor; a guide duct, a first end of which is connected to an exhaust duct of the compressor; the air conditioner condenser is connected with the second end of the guide pipeline and is used for detecting whether the temperature value of the water pipeline of the condensed water pipeline is less than or equal to the frosting temperature value or not; and the two-way valve is arranged between the guide pipeline and the exhaust pipeline and is used for opening when the temperature value of the water pipeline is less than or equal to the frosting temperature value and the duration time is greater than or equal to a time threshold value and conveying the target gas in the compressor to the air-conditioning condenser through the guide pipeline.
In an embodiment of the invention, the compressor is used; a guide duct, a first end of which is connected to an exhaust duct of the compressor; the air conditioner condenser is connected with the second end of the guide pipeline and is used for detecting whether the temperature value of the water pipeline of the condensed water pipeline is less than or equal to the frosting temperature value or not; the two-way valve is arranged between the guide pipeline and the exhaust pipeline and is used for being opened when the temperature value of the water pipeline is less than or equal to the frosting temperature value and the duration time is greater than or equal to the duration time threshold value, and the target gas in the compressor is conveyed to the air conditioner condenser through the guide pipeline, so that the aim that the air conditioner does not need to be stopped and restarted in the frosting inhibition process is achieved, the technical effects of improving the heat exchange efficiency and the defrosting effect of the whole machine are achieved, and the technical problems that the air conditioner needs to be stopped and restarted in the frosting inhibition process in the prior art, the heat exchange efficiency of the whole machine is low, and the defrosting effect is poor are solved.
Optionally, the target gas is a high-temperature high-pressure gas; the guide pipeline is a medium-pressure pipeline, and a first end of the guide pipeline is connected with an exhaust pipeline of the compressor; the second end of the guide pipeline is connected with an air conditioner condenser, and a two-way valve is arranged between the guide pipeline and the exhaust pipeline.
The embodiment of the application provides an implementation scheme capable of realizing non-stop defrosting, and the air conditioner can be guaranteed to normally heat even in a defrosting stage. And, this application embodiment maneuverability is strong, is applicable to single-stage compressor, and the defrosting stage compressor does not stop, and the fan still normally operates, can carry out large tracts of land popularization in the single-stage compressor field.
Through the scheme, the air conditioner can be guaranteed not to have large heat exchange quantity attenuation in the whole heating operation process, so that the room temperature can be kept constant at a set value, meanwhile, frequent opening and closing of the four-way valve in the defrosting process are avoided, and the reliability of the whole air conditioner is prolonged. More importantly, the whole heating process does not need to be stopped, so that the heating comfort of the room is greatly improved.
It should be understood that, in the description of the embodiments of the present application, the flow direction of the refrigerant is "forward direction" and "reverse direction" are based on the illustration, and the flow direction of the refrigerant can be either forward direction or reverse direction, so the description of the flow direction is only for the purpose of understanding the embodiments provided in the embodiments of the present application. Meanwhile, in order to avoid the difference in understanding caused by the description as much as possible, arrows are also used in the drawings to indicate, and reference may be made to the illustrated refrigerant flow direction.
In addition, in the embodiment of the present application, as shown in fig. 1 and 2, a D pipe may be adopted to represent discharge — an exhaust pipe, respectively; e pipeline is adopted to represent evaprorate, namely a pipeline connected with an evaporator; an S pipeline is adopted to represent a suction pipeline; the C pipe represents the Cooling-pipe connected with the condenser; furthermore, the guiding pipe in the embodiment of the present application may adopt an M pipe to represent a Middle-pressure pipe, i.e., a guiding pipe.
As an optional example, the above-mentioned implementation scheme of this application embodiment is different from the operation principle of the existing air conditioner, this application embodiment adds a guiding pipe (M pipe) and a two-way valve that can only flow refrigerant in one direction from the exhaust pipe (D pipe) of the compressor, and optionally, the two-way valve only has 2 states: an on state and an off state.
In the embodiment of the present application, when the condenser outside the air conditioner detects that the temperature value of the water pipeline is less than or equal to the frosting temperature value of 0 ℃, and the detection duration is greater than or equal to a duration threshold (for example, 7min, 5min, etc.), the condenser is turned on, and the target gas in the compressor is delivered to the air conditioner condenser through the guide pipeline.
It should be noted that, in the embodiment of the present application, the temperature value of the water pipeline is required to be less than or equal to 0 ℃, because the condensed water becomes ice when being lower than 0 ℃, that is, the external machine is frosted; and when the duration of the temperature value of the water pipeline is less than or equal to 0 ℃ and is greater than or equal to 7min, controlling the two-way valve to be opened, and directly feeding a part of high-temperature and high-pressure gas in the exhaust port of the compressor into the condenser of the air conditioner through the two-way valve.
In an optional embodiment, the two-way valve is further configured to control unidirectional delivery of the target gas from the compressor to the air conditioner condenser within a predetermined time period, wherein the state of the two-way valve includes: an on state and an off state.
As an alternative embodiment, the flow direction of the two-way valve is a unidirectional flow, that is, the gas in the compressor can be only transmitted to the air conditioner condenser in a unidirectional way.
As another alternative embodiment, the predetermined time period for controlling the opening of the two-way valve is as short as possible, for example, the predetermined time period may be 1min, and 1min is taken as a reference, and the two-way valve automatically enters the closed state after being opened for 1 min.
In an optional embodiment, the system further includes: the four-way valve is connected with the compressor, and the compressor is also used for outputting a refrigerant through the four-way valve when the air conditioner is in heating operation; the air conditioner evaporator is connected with the compressor through the four-way valve and is used for carrying out evaporation and heat dissipation treatment on the received refrigerant and outputting the refrigerant of the refrigerant; the air conditioner condenser is connected with the air conditioner evaporator through the four-way valve and is also used for absorbing heat of the received refrigerant in the air conditioner condenser.
In an optional embodiment, the system further includes: a refrigerant conveying pipeline, wherein a first end of the refrigerant conveying pipeline is connected with the air conditioner condenser, and a second end of the refrigerant conveying pipeline is connected with an air suction port of the compressor; the air conditioner condenser is also used for being connected with the air suction port of the compressor through the refrigerant conveying pipeline and conveying the refrigerant absorbing heat back to the compressor through the air suction port.
In the embodiment of the present application, when the air conditioner is operated for heating, the high-temperature and high-pressure refrigerant flows out from the D-channel of the compressor (flowing to 1), directly enters the air conditioner evaporator (flowing to 2), returns to the outdoor unit (flowing to 3) through the S-channel after being evaporated and radiated in the air conditioner evaporator, continues to flow inside the four-way valve to the C-channel (flowing to 4), and returns to the air suction port (flowing to 5) of the compressor after absorbing heat in the air conditioner condenser on the outdoor side, thereby completing a heating cycle.
In an alternative embodiment, as also shown in fig. 1 and 2, the connection position of the guide duct to the air conditioning condenser is an intermediate position of the air conditioning condenser; the connection position of the four-way valve and the air conditioner condenser is an upper position relative to the middle position; the connection position of the first end of the refrigerant conveying pipeline and the air conditioner condenser is a lower position relative to the middle position.
It should be noted that, the position where the guiding pipe is connected to the air conditioner condenser should be as close to the middle position of the air conditioner condenser as possible, so that it can be ensured that the high-temperature and high-pressure refrigerant can flow on the upper and lower sides of the condenser, and the effect of fully defrosting is achieved.
Moreover, the reason why the middle position of the condenser of the air conditioner is selected is that if the C pipe is selected to be positioned above the condenser, the refrigerant with high temperature and high pressure in the M pipe may flow in a direction of being divided into the evaporator, and the refrigerant flow of the air conditioning system may not be circulated. If the position of the M pipeline connected with the condenser is selected to be close to the lower position of the condenser connected with the compressor, the high-temperature and high-pressure gas is probably fully evaporated without being fully mixed with the refrigerant in the outer unit condenser, and the aim of defrosting cannot be fulfilled.
It should be noted that the specific structure of the defrosting control system of the air conditioner shown in fig. 1 to 2 in the present application is only schematic, and in a specific application, the defrosting control system of the air conditioner in the present application may have more or less structures than the defrosting control system of the air conditioner shown in fig. 1 to 2.
Example 2
According to an embodiment of the present invention, there is provided an embodiment of a defrosting control method of an air conditioner, it should be noted that the steps illustrated in the flowchart of the drawings may be executed in a computer system such as a set of computer executable instructions, and although a logical order is illustrated in the flowchart, in some cases, the steps illustrated or described may be executed in an order different from that herein.
Fig. 3 is a flowchart of a defrosting control method of an air conditioner according to an embodiment of the present invention, as shown in fig. 3, the method including the steps of:
step S102, detecting whether the temperature value of the water pipeline of the condensed water pipeline is less than or equal to the frosting temperature value or not;
step S104, if the water pipeline temperature value is detected to be less than or equal to the frosting temperature value, whether the duration of the water pipeline temperature value which is less than or equal to the frosting temperature value is greater than or equal to a duration threshold value is detected;
and S106, if the duration is detected to be greater than or equal to the duration threshold, controlling a two-way valve connected between a compressor and an air-conditioning condenser to be opened, and conveying the target gas in the compressor to the air-conditioning condenser through a guide pipeline, wherein the first end of the guide pipeline is connected with an exhaust pipeline of the compressor, the second end of the guide pipeline is connected with the exhaust pipeline of the compressor, and the two-way valve is arranged between the guide pipeline and the exhaust pipeline.
In an embodiment of the invention, the compressor is used; a guide duct, a first end of which is connected to an exhaust duct of the compressor; the air conditioner condenser is connected with the second end of the guide pipeline and is used for detecting whether the temperature value of the water pipeline of the condensed water pipeline is less than or equal to the frosting temperature value or not; the two-way valve is arranged between the guide pipeline and the exhaust pipeline and is used for being opened when the temperature value of the water pipeline is less than or equal to the frosting temperature value and the duration time is greater than or equal to the duration time threshold value, and the target gas in the compressor is conveyed to the air conditioner condenser through the guide pipeline, so that the aim that the air conditioner does not need to be stopped and restarted in the frosting inhibition process is achieved, the technical effects of improving the heat exchange efficiency and the defrosting effect of the whole machine are achieved, and the technical problems that the air conditioner needs to be stopped and restarted in the frosting inhibition process in the prior art, the heat exchange efficiency of the whole machine is low, and the defrosting effect is poor are solved.
Optionally, the target gas is a high-temperature high-pressure gas; the guide pipeline is a medium-pressure pipeline, and a first end of the guide pipeline is connected with an exhaust pipeline of the compressor; the second end of the guide pipeline is connected with an air conditioner condenser, and a two-way valve is arranged between the guide pipeline and the exhaust pipeline.
The embodiment of the application provides an implementation scheme capable of realizing non-stop defrosting, and the air conditioner can be guaranteed to normally heat even in a defrosting stage. And, this application embodiment maneuverability is strong, is applicable to single-stage compressor, and the defrosting stage compressor does not stop, and the fan still normally operates, can carry out large tracts of land popularization in the single-stage compressor field.
Through the scheme, the air conditioner can be guaranteed not to have large heat exchange quantity attenuation in the whole heating operation process, so that the room temperature can be kept constant at a set value, meanwhile, frequent opening and closing of the four-way valve in the defrosting process are avoided, and the reliability of the whole air conditioner is prolonged. More importantly, the whole heating process does not need to be stopped, so that the heating comfort of the room is greatly improved.
As an optional example, the above-mentioned implementation scheme of this application embodiment is different from the operation principle of the existing air conditioner, this application embodiment adds a guiding pipe (M pipe) and a two-way valve that can only flow refrigerant in one direction from the exhaust pipe (D pipe) of the compressor, and optionally, the two-way valve only has 2 states: an on state and an off state.
In the embodiment of the present application, when the condenser outside the air conditioner detects that the temperature value of the water pipeline is less than or equal to the frosting temperature value of 0 ℃, and the detection duration is greater than or equal to a duration threshold (for example, 7min, 5min, etc.), the condenser is turned on, and the target gas in the compressor is delivered to the air conditioner condenser through the guide pipeline.
It should be noted that, in the embodiment of the present application, the temperature value of the water pipeline is required to be less than or equal to 0 ℃, because the condensed water becomes ice when being lower than 0 ℃, that is, the external machine is frosted; and when the duration of the temperature value of the water pipeline is less than or equal to 0 ℃ and is greater than or equal to 7min, controlling the two-way valve to be opened, and directly feeding a part of high-temperature and high-pressure gas in the exhaust port of the compressor into the condenser of the air conditioner through the two-way valve.
In an alternative embodiment, controlling the opening of a two-way valve connected between a compressor and an air conditioning condenser to deliver a target gas in the compressor to the air conditioning condenser through a guide duct includes:
step S202, controlling the two-way valve to open within a predetermined time period, and unidirectionally delivering the target gas from the compressor to the air conditioner condenser, wherein the state of the two-way valve includes: an on state and an off state.
It should be noted that any optional or preferred defrosting control method for an air conditioner in this embodiment may be implemented or realized in the defrosting control system for an air conditioner provided in embodiment 1 above.
In addition, it should be noted that, for alternative or preferred embodiments of the present embodiment, reference may be made to the relevant description in embodiment 1, and details are not described herein again.
Example 3
According to an embodiment of the present invention, there is also provided an apparatus embodiment for implementing the defrosting control method of the air conditioner, and fig. 4 is a schematic structural diagram of the defrosting control apparatus of the air conditioner according to the embodiment of the present invention, and as shown in fig. 4, the defrosting control apparatus of the air conditioner includes: a first detection module 400, a second detection module 402, and a control module 404, wherein:
the first detection module 400 is used for detecting whether the temperature value of the water pipeline of the condensed water pipeline is less than or equal to the frosting temperature value or not; a second detecting module 402, configured to detect whether a duration of the water pipeline temperature value being less than or equal to the frosting temperature value is greater than or equal to a duration threshold if the water pipeline temperature value being less than or equal to the frosting temperature value is detected; a control module 404, configured to control a two-way valve connected between a compressor and an air conditioning condenser to open if it is detected that the duration is greater than or equal to the duration threshold, and deliver a target gas in the compressor to the air conditioning condenser through a guide pipe, where a first end of the guide pipe is connected to a discharge pipe of the compressor, a second end of the guide pipe is connected to a discharge pipe of the compressor, and the two-way valve is disposed between the guide pipe and the discharge pipe.
It should be noted that the above modules may be implemented by software or hardware, for example, for the latter, the following may be implemented: the modules can be located in the same processor; alternatively, the modules may be located in different processors in any combination.
It should be noted that the first detection module 400, the second detection module 402 and the control module 404 correspond to steps S102 to S106 in embodiment 2, and the modules are the same as the corresponding steps in the implementation example and the application scenario, but are not limited to the disclosure in embodiment 2. It should be noted that the modules described above may be implemented in a computer terminal as part of an apparatus.
It should be noted that, reference may be made to the relevant description in embodiment 1 for alternative or preferred embodiments of this embodiment, and details are not described here again.
The defrosting control device of the air conditioner may further include a processor and a memory, wherein the first detecting module 400, the second detecting module 402, the control module 404, and the like are stored in the memory as program units, and the processor executes the program units stored in the memory to implement corresponding functions.
The processor comprises a kernel, and the kernel calls a corresponding program unit from the memory, wherein one or more than one kernel can be arranged. The memory may include volatile memory in a computer readable medium, Random Access Memory (RAM) and/or nonvolatile memory such as Read Only Memory (ROM) or flash memory (flash RAM), and the memory includes at least one memory chip.
According to an embodiment of the present application, there is also provided an embodiment of a non-volatile storage medium. Optionally, in this embodiment, the nonvolatile storage medium includes a stored program, and the device in which the nonvolatile storage medium is located is controlled to execute any one of the defrosting control methods of the air conditioner when the program runs.
Optionally, in this embodiment, the nonvolatile storage medium may be located in any one of a group of computer terminals in a computer network, or in any one of a group of mobile terminals, and the nonvolatile storage medium includes a stored program.
Optionally, the apparatus in which the non-volatile storage medium is controlled to perform the following functions when the program is executed: detecting whether the temperature value of the water pipeline of the condensed water pipeline is less than or equal to the frosting temperature value or not; if the detected water pipeline temperature value is smaller than or equal to the frosting temperature value, detecting whether the duration of the water pipeline temperature value smaller than or equal to the frosting temperature value is larger than or equal to a duration threshold value; and if the duration is detected to be greater than or equal to the duration threshold, controlling a two-way valve connected between a compressor and an air-conditioning condenser to be opened, and conveying the target gas in the compressor to the air-conditioning condenser through a guide pipeline, wherein the first end of the guide pipeline is connected with an exhaust pipeline of the compressor, the second end of the guide pipeline is connected with the exhaust pipeline of the compressor, and the two-way valve is arranged between the guide pipeline and the exhaust pipeline.
Optionally, the apparatus in which the non-volatile storage medium is controlled to perform the following functions when the program is executed: controlling the two-way valve to be opened within a preset time period, and unidirectionally conveying the target gas from the compressor to the air-conditioning condenser, wherein the state of the two-way valve comprises the following steps: an on state and an off state.
According to an embodiment of the present application, there is also provided an embodiment of a processor. Optionally, in this embodiment, the processor is configured to execute a program, where the program executes any one of the above defrosting control methods of the air conditioner when running.
According to an embodiment of the present application, there is also provided an embodiment of an electronic device, including a memory and a processor, where the memory stores a computer program, and the processor is configured to run the computer program to execute any one of the above defrosting control methods of an air conditioner.
According to an embodiment of the present application, there is also provided an embodiment of a computer program product adapted to, when executed on a data processing apparatus, execute a program initializing the steps of a defrosting control method of an air conditioner of any of the above.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the above-described division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable non-volatile storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a non-volatile storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned nonvolatile storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A defrosting control system of an air conditioner, comprising:
a compressor;
a guide duct, a first end of which is connected with a discharge duct of the compressor;
the air conditioner condenser is connected with the second end of the guide pipeline and is used for detecting whether the temperature value of the water pipeline of the condensed water pipeline is less than or equal to the frosting temperature value or not;
and the two-way valve is arranged between the guide pipeline and the exhaust pipeline and is used for opening when the temperature value of the water pipeline is less than or equal to the frosting temperature value and the duration time is greater than or equal to the duration time threshold value, and conveying the target gas in the compressor to the air-conditioning condenser through the guide pipeline.
2. The system of claim 1, wherein the two-way valve is further configured to control unidirectional delivery of the target gas from the compressor to the ac condenser for a predetermined period of time, wherein the state of the two-way valve comprises: an on state and an off state.
3. The system of claim 1, further comprising:
the four-way valve is connected with the compressor, and the compressor is also used for outputting a refrigerant through the four-way valve when the air conditioner is in heating operation;
the air conditioner evaporator is connected with the compressor through the four-way valve and is used for carrying out evaporation and heat dissipation treatment on the received refrigerant and outputting the refrigerant of the refrigerant;
the air conditioner condenser is connected with the air conditioner evaporator through the four-way valve and is also used for absorbing heat of the received refrigerant in the air conditioner condenser.
4. The system of claim 3, further comprising:
the first end of the refrigerant conveying pipeline is connected with the air conditioner condenser, and the second end of the refrigerant conveying pipeline is connected with an air suction port of the compressor;
the air conditioner condenser is also used for being connected with an air suction port of the compressor through the refrigerant conveying pipeline and conveying the refrigerant absorbing heat back to the compressor through the air suction port.
5. The system of claim 4, wherein the connection position of the guide duct and the air conditioner condenser is an intermediate position of the air conditioner condenser; the connection position of the four-way valve and the air conditioner condenser is an upper position relative to the middle position; the connection position of the first end of the refrigerant conveying pipeline and the air conditioner condenser is a lower position relative to the middle position.
6. A defrosting control method of an air conditioner is characterized by comprising the following steps:
detecting whether the temperature value of the water pipeline of the condensed water pipeline is less than or equal to the frosting temperature value or not;
if the water pipeline temperature value is detected to be smaller than or equal to the frosting temperature value, detecting whether the duration of the water pipeline temperature value smaller than or equal to the frosting temperature value is larger than or equal to a duration threshold value;
if the duration is detected to be greater than or equal to the duration threshold, controlling a two-way valve connected between a compressor and an air-conditioning condenser to be opened, and conveying the target gas in the compressor to the air-conditioning condenser through a guide pipeline, wherein the first end of the guide pipeline is connected with an exhaust pipeline of the compressor, the second end of the guide pipeline is connected with the exhaust pipeline of the compressor, and the two-way valve is arranged between the guide pipeline and the exhaust pipeline.
7. The method of claim 6, wherein controlling a two-way valve connected between a compressor and an air conditioner condenser to open to deliver a target gas within the compressor to the air conditioner condenser via a pilot conduit comprises:
controlling the two-way valve to be opened within a preset time period, and unidirectionally conveying the target gas from the compressor to the air-conditioning condenser, wherein the state of the two-way valve comprises the following steps: an on state and an off state.
8. A defrosting control device of an air conditioner, comprising:
the first detection module is used for detecting whether the temperature value of the water pipeline of the condensed water pipeline is less than or equal to the frosting temperature value or not;
the second detection module is used for detecting whether the duration of the water pipeline temperature value smaller than or equal to the frosting temperature value is larger than or equal to a duration threshold value or not if the water pipeline temperature value is detected to be smaller than or equal to the frosting temperature value;
and the control module is used for controlling a two-way valve connected between the compressor and the air conditioner condenser to be opened if the duration is detected to be greater than or equal to the duration threshold value, and conveying the target gas in the compressor to the air conditioner condenser through a guide pipeline, wherein the first end of the guide pipeline is connected with an exhaust pipeline of the compressor, the second end of the guide pipeline is connected with the exhaust pipeline of the compressor, and the two-way valve is arranged between the guide pipeline and the exhaust pipeline.
9. A non-volatile storage medium storing a plurality of instructions adapted to be loaded by a processor and to perform the defrosting control method of an air conditioner according to claim 6 or 7.
10. An electronic device comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to perform the defrosting control method of the air conditioner according to claim 6 or 7.
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| CN202011439970.3A CN112594867A (en) | 2020-12-10 | 2020-12-10 | Defrosting control method, device and system of air conditioner and nonvolatile storage medium |
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| CN202011439970.3A CN112594867A (en) | 2020-12-10 | 2020-12-10 | Defrosting control method, device and system of air conditioner and nonvolatile storage medium |
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| CN103542459A (en) * | 2013-11-08 | 2014-01-29 | 海信（山东）空调有限公司 | Cooling and heating inverter air conditioner and defrosting method during heating operation |
| CN103712388A (en) * | 2013-09-26 | 2014-04-09 | 宁波奥克斯空调有限公司 | Novel defrosting system and control method thereof |
| JPWO2018189830A1 (en) * | 2017-04-12 | 2019-11-21 | 三菱電機株式会社 | Refrigeration cycle equipment |
| CN111578441A (en) * | 2020-05-12 | 2020-08-25 | 宁波奥克斯电气股份有限公司 | Non-stop defrosting control method and device and air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103712388A (en) * | 2013-09-26 | 2014-04-09 | 宁波奥克斯空调有限公司 | Novel defrosting system and control method thereof |
| CN103542459A (en) * | 2013-11-08 | 2014-01-29 | 海信（山东）空调有限公司 | Cooling and heating inverter air conditioner and defrosting method during heating operation |
| JPWO2018189830A1 (en) * | 2017-04-12 | 2019-11-21 | 三菱電機株式会社 | Refrigeration cycle equipment |
| CN111578441A (en) * | 2020-05-12 | 2020-08-25 | 宁波奥克斯电气股份有限公司 | Non-stop defrosting control method and device and air conditioner |
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Application publication date: 20210402 |