CN111426100B - Automatic refrigeration heat recovery control method and device and multi-split complete machine equipment - Google Patents
Automatic refrigeration heat recovery control method and device and multi-split complete machine equipment Download PDFInfo
- Publication number
- CN111426100B CN111426100B CN202010313202.7A CN202010313202A CN111426100B CN 111426100 B CN111426100 B CN 111426100B CN 202010313202 A CN202010313202 A CN 202010313202A CN 111426100 B CN111426100 B CN 111426100B
- Authority
- CN
- China
- Prior art keywords
- heating
- water tank
- refrigeration
- heat recovery
- preset
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/06—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
- F24F3/065—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units with a plurality of evaporators or condensers
-
- 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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
- F25B2313/0233—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in parallel arrangements
- F25B2313/02331—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in parallel arrangements during cooling
-
- 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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
- F25B2313/0233—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in parallel arrangements
- F25B2313/02334—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in parallel arrangements during heating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a refrigeration automatic heat recovery control method and device and multi-split complete machine equipment. Wherein, the method comprises the following steps: after the main refrigeration mode of the multi-split air conditioner is determined, judging whether the ratio of the capacity of a heating indoor unit to the capacity of a refrigerating indoor unit in the multi-split air conditioner is within a preset range; if so, further judging whether the heating effect of the heating indoor unit reaches a preset effect; and if so, controlling the water tank of the water heater to enter a refrigeration automatic heat recovery operation mode after the water tank of the water heater is powered off for heating water. By the invention, the automatic heat recovery of the water tank refrigeration can be carried out while the heating effect of the heating inner machine is ensured, the water tank can be used for freely making hot water, the energy is reasonably utilized, and the energy waste is avoided.
Description
Technical Field
The invention relates to the technical field of units, in particular to a refrigeration automatic heat recovery control method and device and a multi-split complete machine device.
Background
The heat recovery multi-split air conditioner system can be matched with a hot water generator for use, when one or more internal machines are started up in a refrigerating mode and the rest internal machines are shut down, if the hot water generator is used for producing hot water to shut down, automatic heat recovery (free hot water production) in the refrigerating mode can be achieved, namely, the heat of refrigerant condensed by the external machine is used for heating water in a water tank.
When the whole machine operates a main body refrigeration mode, namely the capacity of the refrigeration startup internal machine is more than that of the heating startup internal machine and meets a certain proportional relation, the refrigeration automatic heat recovery effect can be realized after the hot water generator heats water and shuts down. However, the heating-up indoor unit in this case is likely to have a problem of poor heating effect due to insufficient refrigerant.
Aiming at the problem that the heating effect of a heating inner machine is easily influenced when a hot water generator is used for automatic heat recovery in refrigeration in the prior art, an effective solution is not provided at present.
Disclosure of Invention
The embodiment of the invention provides a method and a device for controlling automatic refrigeration heat recovery and a multi-split complete machine device, and aims to solve the problem that a hot water generator in the prior art is easy to influence the heating effect of a heating internal machine during the automatic refrigeration heat recovery operation.
In order to solve the technical problem, the invention provides an automatic heat recovery control method for refrigeration, wherein the method comprises the following steps: after the main refrigeration mode of the multi-split air conditioner is determined, judging whether the ratio of the capacity of a heating indoor unit to the capacity of a refrigerating indoor unit in the multi-split air conditioner is within a preset range; if so, further judging whether the heating effect of the heating indoor unit reaches a preset effect; and if so, controlling the water tank of the water heater to enter a refrigeration automatic heat recovery operation mode after the water tank of the water heater is powered off for heating water.
Further, before determining the cooling mode of the main operation body of the multi-split air conditioner, the method further comprises the following steps: determining whether the refrigeration four-way valve is in a power-down state; if not, determining the heating mode of the multi-split air conditioner, and controlling the water heater to maintain the current state; if so, determining the operation refrigeration mode of the multi-split complete machine; and further determining a full cooling mode or a main body cooling mode of the multi-split air conditioner.
Further, after determining that the multi-split air conditioner runs in the full cooling mode or the main cooling mode, the method further comprises the following steps: and if the complete machine of the multi-split air conditioner is determined to operate in the complete refrigeration mode, controlling a water tank of the water heater to enter a refrigeration automatic heat recovery operation mode after the water heater is powered off for heating.
Further, whether the ratio of the capacity of the heating indoor unit to the capacity of the refrigerating indoor unit in the multi-split air conditioner is within the preset range is judged, and the method further comprises the following steps: and judging whether the outdoor environment temperature exceeds the preset environment temperature.
Further, judge whether the effect of heating the interior machine reaches preset effect, include: judging whether the outlet pipe temperature of the heating inner machine is greater than or equal to the set temperature and a preset value or not, and judging whether the high pressure of the system is in a preset pressure range or not; if the two conditions are met, determining that the heating effect of the heating indoor unit reaches a preset effect; otherwise, the normal heating operation of the heating internal machine is preferentially maintained, and the water tank of the water heater is controlled to maintain the current shutdown state of the heating water.
Further, entering a cooling automatic heat recovery operation mode, comprising: judging whether the actual temperature of the water tank is less than or equal to a set temperature-a preset value, whether the actual temperature of the water tank is lower than the preset temperature, and whether the system high pressure is less than or equal to a preset pressure; if the temperature is equal to the set temperature, controlling the water tank to enter a refrigeration automatic heat recovery operation mode according to the set temperature; otherwise, the current water heating shutdown state of the water tank is maintained.
The invention also provides a refrigeration automatic heat recovery control device, wherein the device comprises: the first judging module is used for judging whether the ratio of the capacity of a heating indoor unit to the capacity of a refrigerating indoor unit in the multi-split complete machine is within a preset range or not after the main body refrigerating mode of the multi-split complete machine is determined; the second judging module is used for further judging whether the heating effect of the heating indoor unit reaches a preset effect or not under the condition that the judging result of the first judging module is yes; and the heat recovery control module is used for controlling the water tank of the water heater to enter a refrigeration automatic heat recovery operation mode after the water tank of the water heater is powered off when the judgment result of the second judgment module is yes.
Further, the apparatus further comprises: the whole machine operation mode judging module is used for determining whether the refrigeration four-way valve is in a power-down state; if not, determining the heating mode of the multi-split air conditioner, and controlling the water heater to maintain the current state; if so, determining the operation refrigeration mode of the multi-split complete machine; and further determining a full cooling mode or a main body cooling mode of the multi-split air conditioner.
Further, the second judgment module is specifically configured to judge whether an outlet pipe temperature of the heating internal unit is greater than or equal to a set temperature plus a preset value, and judge whether a system high pressure is within a preset pressure range; if the two conditions are met, determining that the heating effect of the heating indoor unit reaches a preset effect; otherwise, the normal heating operation of the heating internal machine is preferentially maintained, and the water tank of the water heater is controlled to maintain the current shutdown state of the heating water.
Further, the heat recovery control module includes: the parameter judging unit is used for judging whether the actual temperature of the water tank is less than or equal to the set temperature and a preset value, whether the actual temperature of the water tank is lower than the preset temperature or not, and whether the system high pressure is less than or equal to the preset pressure or not; the control unit is used for controlling the water tank to enter a refrigeration automatic heat recovery operation mode according to the set temperature under the condition that the temperature is all established; otherwise, the current water heating shutdown state of the water tank is maintained.
The invention also provides multi-split complete machine equipment, wherein the multi-split complete machine equipment comprises the refrigeration automatic heat recovery control device.
The present invention also provides a computer-readable storage medium having a computer program stored thereon, wherein the program, when executed by a processor, implements the refrigeration automatic heat recovery control method as described above.
By applying the technical scheme of the invention, when the heat recovery multi-online system is used together with a hot water generator, and when the multi-online complete machine operates in a main body refrigerating mode, if the ratio of the capacity of the heating indoor machine to the capacity of the refrigerating indoor machine in the multi-online complete machine is in a preset range and the heating effect of the heating indoor machine reaches a preset effect, the water tank of the water heater is controlled to enter a refrigerating automatic heat recovery operation mode after the heating water is shut down. Based on this, can carry out the automatic heat recovery of water tank refrigeration when guaranteeing to heat the interior machine effect of heating, the water tank can make hot water free, and the energy is avoided extravagant in the rational utilization energy.
Drawings
FIG. 1 is a flow chart of a refrigeration auto heat recovery control method according to an embodiment of the present invention;
FIG. 2 is a flow chart of a refrigeration auto heat recovery control method according to an embodiment of the present invention;
fig. 3 is a block diagram of the automatic heat recovery control device for refrigeration according to the 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.
In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.
In accordance with an embodiment of the present invention, there is provided a method embodiment of refrigeration automatic heat recovery control, it is noted that the steps illustrated in the flowchart of the drawings may be performed in a computer system such as a set of computer executable instructions and that, although a logical order is illustrated in the flowchart, in some cases the steps illustrated or described may be performed in an order different than that presented herein.
Example 1
Fig. 1 is a flow chart of an automatic heat recovery control method for refrigeration according to an embodiment of the present invention, as shown in fig. 1, the method including the steps of:
step S101, after determining the main refrigeration mode of the multi-split air conditioner, judging whether the ratio of the capacity of a heating indoor unit to the capacity of a refrigerating indoor unit in the multi-split air conditioner is within a preset range;
step S102, if yes, further judging whether the heating effect of the heating indoor unit reaches a preset effect;
and step S103, if the temperature reaches the preset temperature, controlling a water tank of the water heater to enter a refrigeration automatic heat recovery operation mode after the water tank of the water heater is powered off for heating water.
This embodiment can carry out the automatic heat recovery of water tank refrigeration when guaranteeing to heat the interior machine effect of heating, and the water tank can make hot water free, and the energy is avoided extravagant in the rational utilization energy.
Before determining the main cooling mode of the multi-split complete machine, the operation mode of the multi-split complete machine can be judged in the following modes: determining whether the refrigeration four-way valve is in a power-down state; if the refrigeration four-way valve is not in a power-down state, the operation mode of the heat recovery multi-split system is a heating mode, one side of the outdoor unit is evaporation, namely the refrigerant needs to absorb heat for evaporation, at the moment, the water tank maintains the existing state, refrigeration automatic heat recovery cannot be operated, and the water heater is controlled to maintain the current state. If the refrigeration four-way valve is in a power-down state, the operation mode of the heat recovery multi-split air conditioning system is a refrigeration mode, and the heat condensed by the outdoor unit can be used for heating water by the water tank.
After the operation mode of the heat recovery multi-split air conditioning system is determined to be the cooling mode, the complete cooling mode or the main cooling mode of the multi-split air conditioning system needs to be further determined. And if the complete machine of the multi-split air conditioner is determined to operate in the complete refrigeration mode, controlling a water tank of the water heater to enter a refrigeration automatic heat recovery operation mode after the water heater is powered off for heating.
And judging whether the ratio of the capacity of the heating indoor unit to the capacity of the refrigerating indoor unit in the multi-split air conditioner is within a preset range (for example, the range of less than or equal to 0.35) or not, and simultaneously judging whether the outdoor environment temperature exceeds the preset environment temperature (for example, 25 ℃). On the premise that the ratio is within the preset range, the outdoor environment temperature also needs to exceed the preset environmental problem, and if the two conditions are met, the next step is executed: and judging whether the heating effect of the heating indoor unit reaches a preset effect or not.
For how to judge whether the heating effect of the heating indoor unit reaches the preset effect, the judgment can be specifically carried out through the following conditions: and judging whether the outlet pipe temperature of the heating inner machine is greater than or equal to the set temperature plus a preset value (for example, 10 ℃) or not, and judging whether the system high pressure is in a preset pressure range (for example, 45-50) or not.
If the conditions are all satisfied, the heating effect of the heating indoor unit is determined to reach the preset effect, and the water tank of the water heater can be controlled to enter the automatic heat recovery operation mode after the heating water is shut down. Specifically, it is determined whether or not the actual temperature of the water tank is less than or equal to a set temperature — a preset value (e.g., 5 ℃) is established, and whether or not the actual temperature of the water tank is lower than a preset temperature (e.g., 35 ℃) is established, and whether or not the system high pressure is less than or equal to a preset pressure (e.g., 50 ℃) is established; if the temperature is equal to the set temperature, controlling the water tank to enter a refrigeration automatic heat recovery operation mode according to the set temperature; otherwise, the current water heating shutdown state of the water tank is maintained.
If all the conditions are not met, the normal heating operation of the heating internal machine is preferentially maintained, and the water tank of the water heater is controlled to maintain the current heating water shutdown state. Thereby the normal heating effect of the heating inner machine can be preferentially ensured.
Example 2
Aiming at the service condition that a heat recovery multi-split air-conditioning system is matched with a hot water generator, when most of the heat recovery multi-split air-conditioning systems operate in a complete refrigeration mode at present, the automatic refrigeration heat recovery operation can be realized when a water tank is used for heating water and is shut down. However, when the heat recovery multi-split air-conditioning system operates in the main cooling mode, if the water tank heating water is shut down and the automatic cooling heat recovery is also operated, the heating effect of the heating indoor unit is poor,
the following control method is adopted in this embodiment as a solution to the problem, and fig. 2 is a flowchart of an automatic heat recovery control method for refrigeration according to an embodiment of the present invention, as shown in fig. 2, the method includes the following steps:
step S201, judging whether the operation mode of the heat recovery multi-split air conditioning system is a refrigeration mode, namely judging whether a refrigeration four-way valve is in a power-off state; if yes, step S203 is executed, and if no, step S202 is executed.
Step S202, if the refrigeration four-way valve is not in a power-down state, the operation mode of the heat recovery multi-split air conditioning system is a heating mode, one side of the outdoor unit is evaporation, namely, the refrigerant needs to absorb heat to evaporate, and at the moment, the water tank maintains the existing state and cannot operate the refrigeration automatic heat recovery.
Step S203, if the refrigeration four-way valve is in a power-down state, the operation mode of the heat recovery multi-split air conditioning system is a refrigeration mode, and the heat condensed by the outdoor unit can be used for heating water by the water tank. And judging whether the heat recovery multi-split air-conditioning system is in a full cooling mode or not. If yes, step S204 is performed, and if no, step S205 is performed.
Step S204, if the mode is a complete refrigeration mode, the refrigeration automatic heat recovery can be operated when the water tank heating water is shut down.
Step S205, judging whether the ratio of the capacity of the indoor unit required by the heating start-up and the capacity of the indoor unit required by the cooling start-up of the system is within the range of allowing the automatic heat recovery operation of the cooling; if yes, step S207 is executed, and if no, step S206 is executed.
And step S206, the water tank keeps heating water to be shut down, and refrigeration automatic heat recovery operation is not allowed.
Step S207, if the ratio of the capacities of the internal machines meets the range, specifically, the outdoor environment temperature is above 25 ℃, and the capacity of the internal machine with the requirement on the heating machine/the capacity of the internal machine with the requirement on the refrigerating machine is less than or equal to 0.35, the automatic heat recovery operation of the refrigerating machine can be allowed. The refrigeration and automatic heat recovery are not carried out when any condition is not met. For example: the total capacity of the heating starting internal machine is 2.8kw, and when the total capacity of the matched refrigerating starting internal machine exceeds 8kw, the refrigeration automatic heat recovery operation of the water tank can be allowed.
Further, whether the heating effect of the heating indoor unit is good or not is judged. If yes, step S208 is performed, and if no, step S209 is performed.
The specific judgment process is as follows: whether the inlet and outlet pipe temperature of the heating inner machine and the system high pressure meet the following conditions is judged, and if the inlet and outlet pipe temperature and the system high pressure meet the following conditions, the heating effect of the heating inner machine is good: the outlet pipe temperature of the heating inner machine is more than or equal to the temperature set by a user and is more than or equal to +10 ℃, and the high pressure of the system is within the range of (45, 50). If the condition is not met, the heating of the internal machine is prioritized, and the water tank maintains the shutdown state of the heating water.
And step S208, the water tank enters refrigeration automatic heat recovery operation after the water tank is shut down for heating. Specifically, if the actual temperature of the water tank is less than or equal to the user set water tank temperature of-5 ℃, the water tank temperature is lower than 35 ℃, and the system high pressure is less than or equal to 50 ℃, hot water is produced according to the water tank temperature set by the user last time.
Step S209 maintains the hot water supply shutdown state of the water tank.
Based on the detailed technical scheme that this embodiment introduces, the many online systems of heat recovery cooperate the hot water generator to use, if the system operation main part mode of refrigerating, according to above-mentioned scheme, then can guarantee to heat and carry out the automatic heat recovery of water tank refrigeration when the interior machine effect of heating.
Example 3
Corresponding to the refrigeration automatic heat recovery control method introduced in fig. 1, the present embodiment provides a refrigeration automatic heat recovery control device, as shown in the structural block diagram of the refrigeration automatic heat recovery control device shown in fig. 3, the device includes:
the first judging module 10 is configured to judge whether a ratio of a capacity of a heating internal machine to a capacity of a cooling internal machine in the multi-split air conditioner is within a preset range after determining a cooling mode of an operation main body of the multi-split air conditioner.
And the second judging module 20 is connected to the first judging module 10, and is configured to further judge whether the heating effect of the heating indoor unit reaches a preset effect or not when the judging result of the first judging module is yes.
Specifically, the method is used for judging whether the outlet pipe temperature of the heating internal machine is greater than or equal to the set temperature plus the preset value, and judging whether the high pressure of the system is within the preset pressure range; if the two conditions are met, determining that the heating effect of the heating indoor unit reaches a preset effect; otherwise, the normal heating operation of the heating internal machine is preferentially maintained, and the water tank of the water heater is controlled to maintain the current shutdown state of the heating water.
And the heat recovery control module 30 is connected to the second judging module 20, and is configured to control the water tank of the water heater to enter a refrigeration automatic heat recovery operation mode after the water tank of the water heater is turned off when the judgment result of the second judging module is yes.
This embodiment can carry out the automatic heat recovery of water tank refrigeration when guaranteeing to heat the interior machine effect of heating, and the water tank can make hot water free, and the energy is avoided extravagant in the rational utilization energy.
The above-mentioned device still includes: the whole machine operation mode judging module is used for determining whether the refrigeration four-way valve is in a power-down state; if not, determining the heating mode of the multi-split air conditioner, and controlling the water heater to maintain the current state; if so, determining the operation refrigeration mode of the multi-split complete machine; and further determining a full cooling mode or a main body cooling mode of the multi-split air conditioner.
The heat recovery control module includes: the parameter judging unit is used for judging whether the actual temperature of the water tank is less than or equal to the set temperature and a preset value, whether the actual temperature of the water tank is lower than the preset temperature or not, and whether the system high pressure is less than or equal to the preset pressure or not; the control unit is used for controlling the water tank to enter a refrigeration automatic heat recovery operation mode according to the set temperature under the condition that the temperature is all established; otherwise, the current water heating shutdown state of the water tank is maintained. Based on this, the heat recovery multi-split air conditioner system is used in cooperation with the hot water generator, and if the system runs in a main refrigeration mode, according to the scheme, automatic heat recovery of water tank refrigeration can be carried out while the heating effect of the heating inner machine is ensured.
The embodiment also provides a multi-split complete machine device, wherein the multi-split complete machine device comprises the refrigeration automatic heat recovery control device introduced above.
Example 4
The embodiment of the present invention provides software for implementing the technical solutions described in the above embodiments and preferred embodiments.
Embodiments of the present invention provide a non-volatile computer storage medium, where computer-executable instructions are stored, and the computer-executable instructions may execute the refrigeration automatic heat recovery control method in any of the above method embodiments.
The storage medium stores the software, and the storage medium includes but is not limited to: optical disks, floppy disks, hard disks, erasable memory, etc.
As can be seen from the above description, the present invention allows the automatic heat recovery operation of the hot water generator by judging that the heating effect of the heating internal machine is within the comfort range when the whole machine operates in the main cooling mode. The hot water generator realizes automatic heat recovery of refrigeration on the premise of not influencing the heating effect of the heating inner machine. On the premise of ensuring the use experience of the user, the energy is effectively utilized, and the resource waste is avoided.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
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 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 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 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 storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned 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 (12)
1. A refrigeration automatic heat recovery control method, characterized in that the method comprises:
after the main refrigeration mode of the multi-split air conditioner is determined, judging whether the ratio of the capacity of a heating indoor unit to the capacity of a refrigerating indoor unit in the multi-split air conditioner is within a preset range;
if not, controlling a water tank of the water heater to maintain a hot water heating shutdown state;
if so, further judging whether the heating effect of the heating indoor unit reaches a preset effect;
if so, controlling the water tank to enter a refrigeration automatic heat recovery operation mode after the water tank is shut down for heating water;
if the current heating water is not reached, the normal heating operation of the heating internal machine is preferentially maintained, and the water tank is controlled to maintain the current heating water shutdown state.
2. The method of claim 1, wherein prior to determining the cooling mode of the multi-split machine main body of operation, the method further comprises:
determining whether the refrigeration four-way valve is in a power-down state;
if not, determining the heating mode of the multi-split air conditioner, and controlling the water heater to maintain the current state;
if so, determining the operation refrigeration mode of the multi-split complete machine; and further determining a full cooling mode or a main body cooling mode of the multi-split air conditioner.
3. The method of claim 2, further comprising, after determining whether the multi-split air conditioner is operating in a full cooling mode or a main cooling mode, the method further comprising:
and if the complete machine of the multi-split air conditioner is determined to operate in the complete refrigeration mode, controlling a water tank of the water heater to enter a refrigeration automatic heat recovery operation mode after the water heater is powered off for heating.
4. The method of claim 1, wherein determining whether a ratio of a capacity of a heating indoor unit to a capacity of a cooling indoor unit in the multi-split air conditioner is within a predetermined range further comprises:
and judging whether the outdoor environment temperature exceeds the preset environment temperature.
5. The method of claim 1, wherein determining whether the heating effect of the heating indoor unit reaches a preset effect comprises:
judging whether the outlet pipe temperature of the heating inner machine is greater than or equal to the set temperature and a preset value or not, and judging whether the high pressure of the system is in a preset pressure range or not;
and if the two conditions are met, determining that the heating effect of the heating indoor unit reaches a preset effect.
6. The method of claim 1 or 3, wherein entering a refrigeration auto heat recovery mode of operation comprises:
judging whether the actual temperature of the water tank is less than or equal to a set temperature-a preset value, whether the actual temperature of the water tank is lower than the preset temperature, and whether the system high pressure is less than or equal to a preset pressure;
if the temperature is equal to the set temperature, controlling the water tank to enter a refrigeration automatic heat recovery operation mode according to the set temperature;
otherwise, the current water heating shutdown state of the water tank is maintained.
7. Refrigeration automatic heat recovery control device, characterized in that it is adapted to perform the method of any of claims 1-6, said device comprising:
the first judging module is used for judging whether the ratio of the capacity of a heating indoor unit to the capacity of a refrigerating indoor unit in the multi-split complete machine is within a preset range or not after the main body refrigerating mode of the multi-split complete machine is determined;
the second judging module is used for further judging whether the heating effect of the heating indoor unit reaches a preset effect or not under the condition that the judging result of the first judging module is yes;
and the heat recovery control module is used for controlling the water tank of the water heater to enter a refrigeration automatic heat recovery operation mode after the water tank of the water heater is powered off when the judgment result of the second judgment module is yes.
8. The apparatus of claim 7, further comprising:
the whole machine operation mode judging module is used for determining whether the refrigeration four-way valve is in a power-down state; if not, determining the heating mode of the multi-split air conditioner, and controlling the water heater to maintain the current state; if so, determining the operation refrigeration mode of the multi-split complete machine; and further determining a full cooling mode or a main body cooling mode of the multi-split air conditioner.
9. The apparatus of claim 7,
the second judgment module is specifically used for judging whether the outlet pipe temperature of the heating internal machine is greater than or equal to the set temperature plus the preset value, and judging whether the high pressure of the system is within the preset pressure range; if the two conditions are met, determining that the heating effect of the heating indoor unit reaches a preset effect; otherwise, the normal heating operation of the heating internal machine is preferentially maintained, and the water tank of the water heater is controlled to maintain the current shutdown state of the heating water.
10. The apparatus of claim 7 or 9, wherein the heat recovery control module comprises:
the parameter judging unit is used for judging whether the actual temperature of the water tank is less than or equal to the set temperature and a preset value, whether the actual temperature of the water tank is lower than the preset temperature or not, and whether the system high pressure is less than or equal to the preset pressure or not;
the control unit is used for controlling the water tank to enter a refrigeration automatic heat recovery operation mode according to the set temperature under the condition that the temperature is all established; otherwise, the current water heating shutdown state of the water tank is maintained.
11. A multi-split complete machine equipment, characterized in that the multi-split complete machine equipment comprises the refrigeration automatic heat recovery control device as claimed in any one of claims 7 to 10.
12. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out the method according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010313202.7A CN111426100B (en) | 2020-04-20 | 2020-04-20 | Automatic refrigeration heat recovery control method and device and multi-split complete machine equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010313202.7A CN111426100B (en) | 2020-04-20 | 2020-04-20 | Automatic refrigeration heat recovery control method and device and multi-split complete machine equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111426100A CN111426100A (en) | 2020-07-17 |
| CN111426100B true CN111426100B (en) | 2021-08-24 |
Family
ID=71554115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010313202.7A Active CN111426100B (en) | 2020-04-20 | 2020-04-20 | Automatic refrigeration heat recovery control method and device and multi-split complete machine equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111426100B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112033182B (en) * | 2020-08-26 | 2021-06-25 | 珠海格力电器股份有限公司 | Shell and tube heat exchanger, unit with heat recovery function and heat recovery control method |
| CN112728712B (en) * | 2021-01-21 | 2022-05-06 | 广东美的暖通设备有限公司 | Multi-split air conditioner running capacity detection method, multi-split air conditioner, storage medium and device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB820912A (en) * | 1957-06-24 | 1959-09-30 | Mcfarlan Alden I | Air conditioning system |
| CN101769580B (en) * | 2009-01-06 | 2012-10-03 | 珠海格力电器股份有限公司 | Air conditioner heat pump hot water unit |
| CN104251533B (en) * | 2013-06-26 | 2017-02-08 | 珠海格力电器股份有限公司 | Heat recycling type air conditioning unit and composite running mode control method thereof |
| CN106382701A (en) * | 2016-11-22 | 2017-02-08 | 珠海格力电器股份有限公司 | Multiple-on-line air conditioner as well as outdoor unit thereof, control method thereof and control device thereof |
| CN109708253A (en) * | 2018-12-29 | 2019-05-03 | 广东美的暖通设备有限公司 | The control method and air-conditioning system of air-conditioning system |
| CN110779080B (en) * | 2019-10-10 | 2021-03-23 | 珠海格力电器股份有限公司 | Continuous heating heat recovery air conditioner outdoor system, heat recovery air conditioner and using method thereof |
-
2020
- 2020-04-20 CN CN202010313202.7A patent/CN111426100B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111426100A (en) | 2020-07-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111426100B (en) | Automatic refrigeration heat recovery control method and device and multi-split complete machine equipment | |
| CN105333563A (en) | Refrigeration control method and device and air conditioner | |
| CN111765595B (en) | Multi-split air conditioner and defrosting control method and device thereof and storage medium | |
| CN111207485B (en) | Anti-freezing control method and device, storage medium and water multi-connected system | |
| CN113418289B (en) | Control method and device for preventing cold air of air conditioner and air conditioner | |
| WO2015162798A1 (en) | Heat pump chilling system and control method therefor | |
| CN114353249B (en) | Control method and device for multi-split air conditioner and multi-split air conditioner | |
| CN112432335B (en) | Method and device for controlling air conditioner and air conditioner | |
| CN112629022B (en) | Multi-split water heater control method and device and multi-split water heater | |
| CN113251575A (en) | Defrosting method for air conditioner outdoor unit, electric cabinet, air conditioner, device and medium | |
| CN109780687B (en) | Air conditioner starting-up pre-blowing control method and system and air conditioner | |
| CN112944594B (en) | Method and device for defrosting control of air conditioner and air conditioner | |
| CN116182369A (en) | Method and device for controlling air outlet temperature of air conditioner, air conditioner and storage medium | |
| CN110887186B (en) | Method and device for controlling air outlet of unit, computer equipment and storage medium | |
| CN111059701B (en) | Energy-saving control method and device, storage medium and water multi-connected system | |
| CN111207500B (en) | Water multi-connected air conditioner, control method and device thereof and storage medium | |
| CN114110973A (en) | Air conditioner multi-split air conditioner and heating start control method and device thereof and storage medium | |
| CN114151944B (en) | Control method and device of air conditioner, storage medium and air conditioner | |
| CN110057056B (en) | Method and device for monitoring operation mode of temperature and humidity adjusting equipment and storage medium | |
| CN114517962B (en) | Method and device for humidifying air conditioner and air conditioner | |
| CN114508809B (en) | Method and device for humidifying air conditioner and air conditioner | |
| CN117760072A (en) | Method and device for controlling multi-split air conditioner and multi-split air conditioner | |
| CN113418276A (en) | Method and device for controlling indoor unit of air conditioner and air conditioner | |
| CN117073148A (en) | Method and device for controlling multi-split air conditioner and multi-split air conditioner | |
| CN116659036A (en) | Power-off compensation control method, storage medium and electronic device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |