CN115930523A - Refrigeration mode switching method, device, equipment and computer readable storage medium - Google Patents
Refrigeration mode switching method, device, equipment and computer readable storage medium Download PDFInfo
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 151
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- 238000001816 cooling Methods 0.000 claims abstract description 169
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- 239000003507 refrigerant Substances 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
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- 230000017525 heat dissipation Effects 0.000 description 2
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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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
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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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
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Abstract
The embodiment of the application discloses a refrigeration mode switching method, a refrigeration mode switching device, computer equipment and a computer readable storage medium. The refrigeration mode switching method comprises the following steps: acquiring the current temperature difference between the cooling side and the refrigerating side, and determining a mode switching condition according to the current temperature difference; and switching to a corresponding refrigeration mode according to the mode switching condition, wherein the refrigeration mode comprises a mechanical refrigeration mode and a natural refrigeration mode. Therefore, the required mode switching condition can be intelligently determined according to the temperature difference between the refrigerating side and the cooling side, so that under the condition of meeting different refrigerating requirements, intelligent switching is carried out between two modes of mechanical refrigeration and natural refrigeration, and the energy-saving effect is achieved to the greatest extent.
Description
Technical Field
The present application relates to the field of refrigeration equipment technology, and in particular, to a refrigeration mode switching method, a refrigeration mode switching apparatus, a computer device, and a computer-readable storage medium.
Background
Refrigeration systems with natural cooling are generally divided into mechanical refrigeration sections and natural cooling sections. The mechanical refrigeration part carries out refrigeration through a compressor refrigeration system, a cooling device such as an evaporator and the like on a cooling side absorbs indoor heat to realize refrigerant evaporation, then the compressor provides power to send the refrigerant to a refrigeration side, and the refrigerant is condensed back to the cooling side through releasing heat to the refrigeration side, so that the effect of cooling is achieved; the self-heating and cooling directly or indirectly exchange heat with air on the cooling side by using the low-temperature environment of the cooling side, and the heat on the cooling side is carried to the cooling side through the heat exchange, so that the effect of cooling is achieved.
Generally, when the temperature of the refrigerating side is low to a certain degree, the natural cooling mode can completely replace the mechanical refrigeration operation, the larger the temperature difference is, the larger the natural cooling capacity is, and the energy efficiency in the natural cooling mode is far higher than that in the mechanical refrigeration mode. The control logic in the prior art is to switch to the natural cooling mode to operate when the temperature difference is large enough to provide the refrigerating capacity of mechanical refrigeration under the rated working condition only through the natural cooling part, and the switching energy can ensure that the refrigerating capacity provided by the natural cooling after switching to the natural cooling can completely meet the refrigerating demand of the load. However, in reality, there may be a situation that the required cooling capacity is small when the cooling demand is small, that is, when the temperature difference does not reach the set temperature difference, natural cooling may be performed to improve the cooling energy efficiency, but the natural cooling may not be performed according to the existing control logic. Therefore, how to balance between mechanical refrigeration and natural cooling to achieve the maximum energy saving is urgently needed to be solved by the technical personnel in the field.
The foregoing description is provided for general background information and does not necessarily constitute prior art.
Disclosure of Invention
In view of this, it is necessary to provide a cooling mode switching method, a cooling mode switching apparatus, a computer device, and a computer-readable storage medium, which address the above-mentioned problems.
The technical problem to be solved by the application is realized by adopting the following technical scheme:
the application provides a refrigeration mode switches, includes following step: acquiring the current temperature difference between the cooling side and the refrigerating side, and determining a mode switching condition according to the current temperature difference; and switching to a corresponding refrigeration mode according to the mode switching condition, wherein the refrigeration mode comprises a mechanical refrigeration mode and a natural refrigeration mode.
In an optional embodiment of the present application, obtaining the mode switching condition according to the current temperature difference includes: judging whether the current temperature difference meets a natural cold start condition or not; if the current temperature difference does not meet the natural cold start condition, determining that the mode switching condition is a first mode switching condition, and judging whether a first switching point for switching the refrigeration mode is needed or not according to the refrigeration requirement under the condition that the current temperature difference does not meet the natural cold start condition, wherein the first switching point is a preset fixed value; and if the current temperature difference meets the natural cold start condition, determining a second mode switching condition according to the temperature difference, judging whether a second switching point for switching the refrigeration mode is needed according to the refrigeration requirement under the condition that the current temperature difference meets the natural cold start condition, and calculating the second switching point to obtain positive correlation with the current temperature difference.
In an optional embodiment of the present application, the determining the second mode switching condition according to the temperature difference includes: acquiring a switching condition calculation constant, wherein the switching condition calculation constant comprises a preset natural cold minimum operation temperature difference, a fixed required value and a required conversion coefficient; and determining a second switching point according to the current temperature difference and the switching condition calculation constant.
In an optional embodiment of the present application, obtaining the mode switching condition according to the current temperature difference includes: and acquiring temperature change trend information of the cooling side according to the current temperature difference, determining a third mode switching condition according to the temperature change trend information, judging whether a third switching point for switching the refrigeration mode is needed according to the refrigeration requirement by the third mode switching condition, and calculating the third switching point to obtain negative correlation with the temperature change trend information.
In an optional embodiment of the present application, switching to a corresponding cooling mode according to a mode switching condition includes: acquiring a refrigeration demand, and judging whether a mode switching condition is met or not according to the refrigeration demand; when the refrigeration requirement meets the mode switching condition, switching to a natural cooling mode; and when the refrigeration requirement does not meet the mode switching condition, switching to the mechanical refrigeration mode.
In an optional embodiment of the present application, switching to a corresponding cooling mode according to a mode switching condition includes: acquiring a refrigerating capacity mapping table, wherein the mapping relation between the temperature difference and the output first refrigerating capacity in a natural refrigerating mode and the mapping relation between the output second refrigerating capacity in a mechanical refrigerating mode under different working conditions are stored in the refrigerating capacity mapping table; obtaining a corresponding first refrigerating capacity according to a current temperature difference query mode refrigerating capacity comparison table, and obtaining a corresponding second refrigerating capacity according to a current working condition information query mode refrigerating capacity comparison table; determining a fourth mode switching condition according to the first refrigerating capacity and the second refrigerating capacity; the fourth mode switching condition includes: if the first refrigerating capacity is less than or equal to the second refrigerating capacity, switching to a mechanical refrigerating mode; and if the first refrigerating capacity is larger than the second refrigerating capacity, switching to a natural cooling mode.
In an optional embodiment of the present application, before obtaining the cooling capacity mapping table, the method further includes: and acquiring working condition information of the refrigeration system, and updating the mode refrigerating capacity comparison table according to the working condition information.
The application also provides a refrigeration mode auto-change over device, includes: the condition determining module is used for acquiring the current temperature difference between the cooling side and the refrigerating side and determining mode switching conditions according to the current temperature difference; and the mode switching module is used for switching to a corresponding refrigeration mode according to the mode switching condition, and the refrigeration mode comprises a mechanical refrigeration mode and a natural refrigeration mode.
The present application further provides a computer device comprising a processor and a memory: the processor is used to execute the computer program stored in the memory to implement the method as described previously.
The present application also provides a computer-readable storage medium storing a computer program which, when executed by a processor, implements a method as described above.
By adopting the embodiment of the application, the method has the following beneficial effects:
this application can confirm required mode switching condition according to the difference in temperature intelligence of system cold side and cooling side to under the condition that satisfies different refrigeration demands, switch over between two modes of machinery refrigeration and nature cold intelligently, reach the effect of energy-conservation in the at utmost.
The foregoing description is only an overview of the technical solutions of the present application, and in order to make the technical means of the present application more clearly understood, the present application may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present application more clearly understood, the following preferred embodiments are specifically described in detail with reference to the accompanying drawings. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Wherein:
fig. 1 is a schematic flow chart of a refrigeration mode switching method according to an embodiment;
fig. 2 is a schematic application environment diagram of a refrigeration mode switching method according to an embodiment;
fig. 3 is a schematic diagram illustrating a functional relationship between a current temperature difference and a refrigeration demand in a refrigeration mode switching method according to an embodiment;
fig. 4 is a schematic diagram illustrating a functional relationship between temperature variation trend information of a cooling side and a third switching point in a refrigeration mode switching method according to an embodiment;
fig. 5 is a schematic block diagram illustrating a configuration of a cooling mode switching device according to an embodiment;
FIG. 6 is a block diagram illustrating an exemplary configuration of a computing device, according to an embodiment.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
Fig. 1 is a schematic flow chart of a refrigeration mode switching method according to an embodiment; fig. 2 is a schematic application environment diagram of a refrigeration mode switching method according to an embodiment; fig. 3 is a schematic diagram illustrating a functional relationship between a current temperature difference and a refrigeration demand in a refrigeration mode switching method according to an embodiment; fig. 4 is a schematic diagram illustrating a functional relationship between temperature variation trend information of the cooling side and the third switching point in the cooling mode switching method according to an embodiment. For a clear description of the refrigeration mode switching method provided in this embodiment, please refer to fig. 1 to fig. 4.
In the prior art, the general control logic is to switch to the natural cooling mode to operate when the temperature difference between the cooling side and the refrigerating side is large enough to provide the refrigerating capacity of mechanical refrigeration under the rated working condition only through the natural cooling part, and the switching can ensure that the refrigerating capacity provided by the unnatural cooling after the switching to the natural cooling can completely meet the refrigerating requirement of the load. The disadvantage of this solution is that the required cooling capacity is small when the cooling demand is small, in which case in practice the temperature difference between the cooling side and the cold side is likely to run natural cooling when the set temperature difference is not reached, but not with the present logic, the energy saving effect cannot be achieved to the maximum extent. Based on this, a method for switching a cooling mode provided in the first embodiment of the present application is proposed, which includes steps S110 to S120.
Step S110: and acquiring the current temperature difference between the cooling side and the refrigerating side, and determining the mode switching condition according to the current temperature difference.
In an embodiment, for the method for switching the cooling mode provided in this embodiment, reference may be made to fig. 2, and fig. 2 is a schematic diagram of an application environment of a method for switching a cooling mode provided in an embodiment, and as shown in the figure, the method includes a cooling side and a cooling side. Specifically, the present application may be applied to a phase change Cooling system, which includes ECM (outdoor evaporative condensing heat dissipation module), CCM (Cooling regulator module), TCM (Terminal Cooling module). Correspondingly, the ECM may include both a cooling side as shown in fig. 2 for control and providing cooling; the TCM can be a cooling side, namely a side needing to be cooled; the CCM is an intermediary and medium connecting the cooling side and the refrigerating side for transferring the cold. Specifically, temperature sensors are provided on both the cooling side and the cooling side to determine the temperatures of both sides in preparation for subsequent determination of mode conditions for flexible selection or switching between natural cooling and mechanical cooling. Since the cooling side is generally located indoors and the cooling side is located outdoors, the references to indoor and outdoor actually refer to the difference in functionality between the cooling side and the cooling side.
In one embodiment, step S110: the current temperature difference between the cooling side and the cooling side is obtained, and specifically, the current temperature difference between the outdoor temperature and the indoor temperature is obtained. Determining a mode switching condition according to the current temperature difference, comprising: judging whether the current temperature difference meets a natural cold start condition or not; if the current temperature difference does not meet the natural cold starting condition, determining that the mode switching condition is a first mode switching condition, and under the condition that the current temperature difference does not meet the natural cold starting condition, judging whether a first switching point for switching the refrigeration mode is needed according to the refrigeration requirement, wherein the first switching point is a preset fixed value; and if the current temperature difference meets the natural cold starting condition, determining a second mode switching condition according to the temperature difference, judging whether a second switching point for switching the refrigeration mode is needed according to the refrigeration requirement under the condition that the current temperature difference meets the natural cold starting condition according to the second mode switching condition, and calculating the second switching point to obtain positive correlation with the current temperature difference.
In one embodiment, as described above, the prior art only considers the current temperature difference between the cooling side and the cooling side to determine whether to switch between natural cooling and mechanical cooling, but does not consider the effect of the cooling requirement. That is, for example, if the refrigeration demand is not high, the current temperature difference satisfies a certain condition, i.e., the cooling can be realized by natural cooling; if the refrigeration demand is high, the cooling demand cannot be completely met even if the current temperature difference meets a certain condition. It can be seen that the refrigeration demand switching point for turning on natural cooling is in certain relation to the current temperature difference, and therefore, the refrigeration mode switching method according to the embodiment is provided. Fig. 3 is a schematic diagram of a functional relationship between the current temperature difference and the refrigeration demand in the refrigeration mode switching method according to the embodiment, in the diagram, the temperature difference (Dt) is horizontally set, the refrigeration demand (R) is vertically set, the natural cold minimum operating temperature difference (Dts) is represented by a dotted line, R1 is a first switching point, and R2 is a second switching point. First, a certain condition of the aforementioned "current temperature difference satisfies a certain condition", that is, a natural cold start condition, that is, a natural cold minimum operating temperature difference corresponding to the current temperature difference, is shown in fig. 3, that is, a temperature difference corresponding to a dotted line. In addition, it is understood that, since the cooling mode switching method provided by the present application is to provide cooling energy to the cooling side by the cooling side, the temperature difference referred to in the present application is, in a preferred embodiment, a temperature difference formed by the temperature of the cooling side being lower than that of the cooling side. If the current temperature difference does not satisfy the natural cold start condition, that is, the current temperature difference is lower than the minimum natural cold running temperature difference, corresponding to the range on the left side of the dotted line in fig. 3, the mode switching condition is determined to be a first mode switching condition, and the first mode switching condition is a first switching point (R1) which judges whether the refrigeration mode needs to be switched according to the refrigeration requirement under the condition that the current temperature difference does not satisfy the natural cold start condition, wherein the first switching point is a preset fixed value. The condition corresponding to the R1, namely the current temperature difference is not enough to start natural cooling, under the condition, the refrigerating capacity realized by the natural cooling with the temperature difference lower than the temperature difference is better than the refrigerating capacity, therefore, the switching point at the moment selects the preset fixed value represented by the R1, the R1 is taken as the first switching condition, and the mode switching is determined according to the matching of the refrigerating requirement and the first switching condition. And if the current temperature difference is higher than the minimum running temperature difference of the natural cooling, the refrigerating capacity which can be realized by the natural cooling is not negligible. It can be understood that, as the temperature difference increases, the amount of refrigeration realized by natural cooling increases, and the refrigeration requirement that can be met is higher and higher, that is, R2 is positively correlated to Dt. As can be seen from fig. 3, the higher the demand point for switching to mechanical cooling, the larger the natural cooling operation interval. Thus, the system can dynamically match the temperature difference with the switching point. When the refrigeration requirement can not be met in the natural cooling operation process, the refrigeration requirement can rise, so that mechanical refrigeration is started, and the control temperature is ensured to be within a target value range. The specific switching will be described in detail later, and will not be expanded here.
In one embodiment, determining the second mode switching condition based on the temperature difference comprises: acquiring a switching condition calculation constant, wherein the switching condition calculation constant comprises a preset natural cold minimum operation temperature difference, a fixed required value and a required conversion coefficient; and determining a second switching point according to the current temperature difference and the switching condition calculation constant.
In an embodiment, as described above, R2 has a certain relationship with the current actual temperature difference Dt, and can be obtained by calculation, and a switching condition calculation constant required to be obtained is calculated, where the switching condition calculation constant includes the preset natural cold minimum operating temperature difference Dts, the fixed required value a, and the requirement conversion coefficient X, and a correlation between R2 and Dt can be expressed as:
R2＝A+(Dt-Dts)*X
(1)
the current temperature difference Dt can be dynamically matched with the natural cold operation demand interval by the formula (1). For example, natural cooling can be run with a setting of Dts greater than 10 degrees, a of 50%, X of 2, and dt of 15. Then R2=50+ (15-10) · 2=60. That is, when the temperature difference is greater than 60, the switching point of natural cooling to mechanical cooling is 60; when the temperature difference is 10 degrees, the switching point is 50, and when the temperature difference is 20 degrees, the switching point is 70. Therefore, the larger Dt is, the higher the demand point for switching to mechanical cooling is, the larger the natural cooling operation interval is, that is, R2 is positively correlated with Dt. Therefore, dynamic matching of the current temperature difference and the switching point can be realized, the demand point for starting mechanical cold is increased, the running time of natural cold is prolonged, and the power consumption is reduced to the maximum extent. Note that the values of the coefficients Dts, a, X, and the like, which are given above, are given by way of example and are not intended to limit the technology, and may be arbitrarily set according to actual circumstances, and are not further limited herein.
In one embodiment, step S110: determining a mode switching condition according to the current temperature difference, comprising: and acquiring temperature change trend information of the cooling side according to the current temperature difference, determining a third mode switching condition according to the temperature change trend information, judging whether a third switching point for switching the refrigeration mode is needed according to the refrigeration requirement by the third mode switching condition, and calculating the third switching point to obtain negative correlation with the temperature change trend information.
In one embodiment, it can be understood that, since the method of the present application is to implement the reduction of the temperature of the cooling side, and the temperature difference is obtained by subtracting the temperatures of the cooling side and the cooling side, in a preferred embodiment, the acquired temperature trend information is trend information of the temperature rise of the cooling side. It is understood that natural cooling, in the case of achieving refrigeration, does not achieve as much refrigeration as mechanical refrigeration. Therefore, if in the case of natural cooling, if the temperature of the cooling side rises rapidly, the amount of cooling that the natural cooling can provide is difficult to meet the cooling demand of the cooling side, so it is necessary to switch to more powerful mechanical cooling in time. Specifically, referring to fig. 4, fig. 4 is a schematic diagram illustrating a functional relationship between temperature variation trend information of a cooling side and a third switching point in the cooling mode switching method according to an embodiment, where the horizontal direction is temperature variation trend information (Tr) and the vertical direction is a cooling demand (R). As can be seen from the figure, the third switching point is negatively correlated with the temperature change trend information, that is, the stronger the temperature change of the cooling side is, the lower the point of need for starting the mechanical cooling is, so that when the temperature of the cooling side rapidly rises, the natural cooling is switched to the mechanical cooling in time for effectively suppressing the heat dissipation of the cooling side.
In one embodiment, step S110: determining a mode switching condition according to the current temperature difference, comprising: acquiring a refrigerating capacity mapping table, wherein the mapping relation between the temperature difference and the output first refrigerating capacity in a natural refrigerating mode and the mapping relation between the output second refrigerating capacity in a mechanical refrigerating mode under different working conditions are stored in the refrigerating capacity mapping table; obtaining a corresponding first refrigerating capacity according to a current temperature difference query mode refrigerating capacity comparison table, and obtaining a corresponding second refrigerating capacity according to a current working condition information query mode refrigerating capacity comparison table; determining a fourth mode switching condition according to the first refrigerating capacity and the second refrigerating capacity; the fourth mode switching condition includes: if the first refrigerating capacity is less than or equal to the second refrigerating capacity, switching to a mechanical refrigerating mode; and if the first refrigerating capacity is larger than the second refrigerating capacity, switching to a natural cooling mode.
In an embodiment, before obtaining the cooling capacity mapping table, the method further includes: and acquiring working condition information of the refrigeration system, and updating the mode refrigerating capacity comparison table according to the working condition information.
In an embodiment, which refrigeration mode can meet the refrigeration requirement can be determined according to the size of the refrigeration capacity under the current condition, so that energy conservation is realized to the maximum extent. The mapping relations between the refrigerating capacity which can be output under different conditions in the refrigerating mode and the influence factors are stored in the refrigerating capacity mapping table, and the influence factors include but are not limited to current temperature difference, current working condition information and the like. Wherein, the influence factors of the refrigerating output of the natural cooling station are mainly found in the current temperature difference; for mechanical refrigeration, the refrigerating capacity that affects the mechanical refrigeration output is also the working condition information of the current refrigeration system, such as the operating frequency of operation, the rotating speed of the inner fan, the degree of superheat, the rotating speed of the outer fan, and the like. Therefore, the corresponding first refrigerating capacity can be obtained according to the current temperature difference query mode refrigerating capacity comparison table, and the corresponding second refrigerating capacity can be obtained according to the current working condition information query mode refrigerating capacity comparison table. And determining a fourth mode switching condition by comparing the first cooling capacity with the second cooling capacity. It should be noted that in a preferred embodiment, the precondition of the fourth mode switching condition is that the mechanical refrigeration is in stable operation, and the first cooling capacity of the natural cooling output calculated by the foregoing embodiment may be larger than the second cooling capacity of the mechanical refrigeration output. In this case, it is preferable to determine that the fourth mode switching condition is enabled, thereby increasing the demand point for turning on mechanical cooling, extending the operating time of natural cooling, and minimizing power consumption.
Step S120: and switching to a corresponding refrigeration mode according to the mode switching condition, wherein the refrigeration mode comprises a mechanical refrigeration mode and a natural refrigeration mode.
In one embodiment, step S120: switching to a corresponding refrigeration mode according to a mode switching condition, comprising: acquiring a refrigeration demand, and judging whether a mode switching condition is met according to the refrigeration demand; when the refrigeration requirement meets the mode switching condition, switching to a natural cooling mode; and when the refrigeration requirement does not meet the mode switching condition, switching to the mechanical refrigeration mode.
In one embodiment, a first switching point, a second switching point, and a third switching point are determined for the first mode switching condition, the second mode switching condition, and the third mode switching condition, respectively. In above three kinds of modes, all couple refrigeration demand and switch point, to whether satisfy the mode switch condition, also can judge that the refrigeration demand is less than the switch point: if the refrigeration demand is lower than the switching point, the refrigeration quantity provided by the natural cold under the current condition meets the refrigeration demand, mechanical refrigeration does not need to be started, namely the switching condition is met, and the refrigeration mode is switched or kept in the natural cold mode; if the refrigeration demand is higher than or equal to the switching point, the refrigeration capacity that the specification natural cooling can provide can not satisfy the refrigeration demand, so that mechanical refrigeration needs to be started to provide sufficient refrigeration capacity for the cooling side. For the fourth switching condition, that is, in the case of the current influencing factor, which mode has a higher cooling capacity in the case of satisfying the cooling demand, which cooling mode is used: if the first refrigerating capacity is smaller than or equal to the second refrigerating capacity, keeping or switching to a mechanical refrigerating mode; and if the first refrigerating capacity is larger than the second refrigerating capacity, keeping or switching to a natural cooling mode.
Therefore, the required mode switching condition can be intelligently determined according to the temperature difference between the refrigerating side and the cooling side, and under the condition of meeting different refrigerating requirements, intelligent switching is carried out between two modes of mechanical refrigeration and natural refrigeration. The two conditions for opening the natural cooling in the system with the natural cooling are dynamically matched according to the temperature difference and the load, so that the natural cooling is opened as much as possible, and the effect of saving energy is achieved to the greatest extent.
Fig. 5 is a schematic block diagram of a refrigeration mode switching device according to an embodiment. The cooling mode switching device 50 provided in this embodiment specifically includes: a condition determining module 51, configured to obtain a current temperature difference between the cooling side and the cooling side, and determine a mode switching condition according to the current temperature difference; and the mode switching module 52 is configured to switch to a corresponding refrigeration mode according to a mode switching condition, where the refrigeration mode includes a mechanical refrigeration mode and a natural refrigeration mode. The cooling mode switching device 50 can implement the cooling mode switching method provided by an embodiment of the present invention through the cooperation of two modules, which specifically includes steps S110 to S120, which have been described in detail in the foregoing embodiment, and for details, please refer to the foregoing, which is not repeated herein.
FIG. 6 is a diagram illustrating an internal structure of a computer device in one embodiment. The computer device may specifically be a terminal, and may also be a server. As shown in fig. 6, the computer device includes a processor, a memory, and a network interface connected by a system bus. Wherein the memory includes a non-volatile storage medium and an internal memory. The non-volatile storage medium of the computer device stores an operating system and may further store a computer program that, when executed by the processor, causes the processor to implement the cooling mode switching method. The internal memory may also have a computer program stored therein, which when executed by the processor, causes the processor to perform the age identification method. It will be appreciated by those skilled in the art that the configuration shown in fig. 6 is a block diagram of only a portion of the configuration associated with the present application, and is not intended to limit the computing device to which the present application may be applied, and that a particular computing device may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, a computer device is proposed, comprising a memory and a processor, the memory storing a computer program which, when executed by the processor, causes the processor to perform the steps of: step S110: acquiring the current temperature difference between the cooling side and the refrigerating side, and determining a mode switching condition according to the current temperature difference; step S120: and switching to a corresponding refrigeration mode according to the mode switching condition, wherein the refrigeration mode comprises a mechanical refrigeration mode and a natural refrigeration mode.
Therefore, the required mode switching condition can be intelligently determined according to the temperature difference between the refrigerating side and the cooling side, so that under the condition of meeting different refrigerating requirements, intelligent switching is carried out between two modes of mechanical refrigeration and natural refrigeration, and the energy-saving effect is achieved to the greatest extent.
In one embodiment, a computer-readable storage medium is provided, which stores a computer program, which, when executed by a processor, causes the processor to perform the steps of a cooling mode switching method as described in one embodiment.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above may be implemented by a computer program, which may be stored in a non-volatile computer readable storage medium, and when executed, may include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), rambus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent application shall be subject to the appended claims.
Claims (10)
1. A refrigeration mode switching method is characterized by comprising the following steps:
acquiring the current temperature difference between a cooling side and a cooling side, and determining mode switching conditions according to the current temperature difference;
and switching to a corresponding refrigeration mode according to the mode switching condition, wherein the refrigeration mode comprises a mechanical refrigeration mode and a natural cooling mode.
2. A cooling mode switching method according to claim 1, wherein said obtaining a mode switching condition according to the current temperature difference comprises:
judging whether the current temperature difference meets a natural cold start condition or not;
if the current temperature difference does not meet the natural cold starting condition, determining that the mode switching condition is a first mode switching condition, wherein the first mode switching condition is a first switching point for judging whether the refrigeration mode needs to be switched according to refrigeration requirements under the condition that the current temperature difference does not meet the natural cold starting condition, and the first switching point is a preset fixed value;
if the current temperature difference meets the natural cold starting condition, determining a second mode switching condition according to the temperature difference, wherein the second mode switching condition is that the current temperature difference meets the natural cold starting condition, judging whether a second switching point for switching the refrigeration mode is needed according to the refrigeration requirement, and the second switching point is obtained through calculation and is positively correlated with the current temperature difference.
3. A cooling mode switching method according to claim 2, wherein said determining a second mode switching condition based on said temperature difference comprises:
acquiring a switching condition calculation constant, wherein the switching condition calculation constant comprises a preset natural cold minimum operation temperature difference, a fixed required value and a required conversion coefficient;
and determining the second switching point according to the current temperature difference and the switching condition calculation constant.
4. A cooling mode switching method according to claim 1, wherein said obtaining a mode switching condition according to the current temperature difference comprises:
and acquiring temperature change trend information of the cooling side according to the current temperature difference, determining a third mode switching condition according to the temperature change trend information, judging whether a third switching point for switching the refrigeration mode is needed according to the refrigeration requirement by the third mode switching condition, and calculating the third switching point to obtain negative correlation with the temperature change trend information.
5. A cooling mode switching method according to any one of claims 2 to 4, wherein the switching to the corresponding cooling mode according to the mode switching condition includes:
acquiring the refrigeration demand, and judging whether the mode switching condition is met according to the refrigeration demand;
when the refrigeration requirement meets the mode switching condition, switching to the natural cooling mode;
and when the refrigeration requirement does not meet the mode switching condition, switching to the mechanical refrigeration mode.
6. A cooling mode switching method according to claim 1, wherein the switching to the corresponding cooling mode according to the mode switching condition includes:
acquiring a refrigerating capacity mapping table, wherein the mapping relation between the temperature difference and the output first refrigerating capacity in a natural cooling mode and the mapping relation between the output second refrigerating capacity in a mechanical refrigerating mode under different working conditions are stored in the refrigerating capacity mapping table;
inquiring the mode refrigerating capacity comparison table according to the current temperature difference to obtain a corresponding first refrigerating capacity, and inquiring the mode refrigerating capacity comparison table according to the current working condition information to obtain a corresponding second refrigerating capacity;
determining a fourth mode switching condition according to the first refrigeration capacity and the second refrigeration capacity;
the fourth mode switching condition includes:
if the first refrigerating capacity is smaller than or equal to the second refrigerating capacity, switching to the mechanical refrigerating mode;
and if the first refrigerating capacity is larger than the second refrigerating capacity, switching to the natural cooling mode.
7. A refrigeration mode switching method according to claim 6, wherein before said obtaining a refrigeration capacity map, said method further comprises:
and acquiring working condition information of the refrigerating system, and updating the mode refrigerating capacity comparison table according to the working condition information.
8. A refrigeration mode switching apparatus, comprising:
the condition determining module is used for acquiring the current temperature difference between the cooling side and the refrigerating side and determining mode switching conditions according to the current temperature difference;
and the mode switching module is used for switching to a corresponding refrigeration mode according to the mode switching condition, and the refrigeration mode comprises a mechanical refrigeration mode and a natural refrigeration mode.
9. A computer device, comprising a processor and a memory:
the processor is configured to execute a computer program stored in the memory to implement the method of any one of claims 1 to 7.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program which, when executed by a processor, implements the method according to any one of claims 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211547808.2A CN115930523A (en) | 2022-12-05 | 2022-12-05 | Refrigeration mode switching method, device, equipment and computer readable storage medium |
| PCT/CN2023/092483 WO2024119708A1 (en) | 2022-12-05 | 2023-05-06 | Refrigeration mode switching method and apparatus, device and computer readable storage medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211547808.2A CN115930523A (en) | 2022-12-05 | 2022-12-05 | Refrigeration mode switching method, device, equipment and computer readable storage medium |
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| WO2024119708A1 (en) * | 2022-12-05 | 2024-06-13 | 深圳市英维克科技股份有限公司 | Refrigeration mode switching method and apparatus, device and computer readable storage medium |
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| CN111637611B (en) * | 2020-05-18 | 2021-12-07 | 珠海格力电器股份有限公司 | Water chilling unit control method and device, storage medium and water chilling unit |
| CN114698325A (en) * | 2020-12-31 | 2022-07-01 | 深圳易信科技股份有限公司 | Control method of container data center cooling system |
| CN113310232A (en) * | 2021-05-11 | 2021-08-27 | 深圳市共济科技股份有限公司 | Base type natural cooling air conditioning system and control method |
| CN114110946B (en) * | 2021-11-12 | 2022-09-09 | 贵州绿云科技有限公司 | Control method and device for fully utilizing natural cooling of water-cooled central air conditioner |
| CN115638528B (en) * | 2021-12-17 | 2024-06-07 | 珠海格力电器股份有限公司 | Air-cooled chiller system, control method thereof, controller and storage medium |
| CN115930523A (en) * | 2022-12-05 | 2023-04-07 | 深圳市英维克科技股份有限公司 | Refrigeration mode switching method, device, equipment and computer readable storage medium |
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| WO2024119708A1 (en) * | 2022-12-05 | 2024-06-13 | 深圳市英维克科技股份有限公司 | Refrigeration mode switching method and apparatus, device and computer readable storage medium |
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