CN115183413A

CN115183413A - Starting control method and device for refrigeration equipment, refrigeration equipment and medium

Info

Publication number: CN115183413A
Application number: CN202210735983.8A
Authority: CN
Inventors: 刘银; 时斌; 王明久; 胡乐举; 袁本海; 杨艳菲
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2022-10-14

Abstract

The application relates to the technical field of refrigeration equipment, and discloses a starting control method for the refrigeration equipment, which comprises the following steps: under the condition that the refrigeration equipment is determined to be started, controlling an air supply system to be started so as to establish air supply pressure difference through the air supply system; acquiring a gas supply pressure difference value of the gas supply system; and under the condition that the air supply pressure difference value is matched with the starting pressure difference, controlling the air supply system to continuously operate. The method effectively shortens the starting time of the centrifugal refrigeration equipment in the starting stage of the compressor, and realizes the quick starting of the compressor. The application also discloses a starting control device for the refrigeration equipment, the refrigeration equipment and a medium.

Description

Starting control method and device for refrigeration equipment, refrigeration equipment and medium

Technical Field

The present application relates to the technical field of refrigeration equipment, and for example, to a start control method and apparatus for refrigeration equipment, and a medium.

Background

At present, centrifugal refrigeration plants are equipped with gas-suspension compressors or gas-liquid hybrid compressors. Taking the air suspension compressor as an example, the centrifugal refrigeration device firstly establishes air supply pressure difference through the air supply system so as to enable the bearing configured in the air suspension compressor to be in a suspension state. Then, the gas suspension compressor is controlled to start and continuously monitor the running state of the gas suspension compressor. And finally, controlling the air supply system to stop running after the running state indicates that the air suspension compressor is stopped.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

the compressor starting method adopted in the related art performs the step of establishing the air supply pressure difference before the air suspension compressor is started each time. Because the establishment of the air supply pressure difference consumes a certain time, the centrifugal refrigeration equipment has the defect of long compressor starting time in the compressor starting stage.

Disclosure of Invention

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a starting control method and device for refrigeration equipment, the refrigeration equipment and a medium, so as to shorten the starting time of the centrifugal refrigeration equipment in the starting stage of a compressor and realize the quick starting of the compressor.

In some embodiments, the method comprises: under the condition that the refrigeration equipment is determined to be started, controlling an air supply system to be started so as to establish air supply pressure difference through the air supply system; acquiring a gas supply pressure difference value of the gas supply system; and under the condition that the air supply pressure difference value is matched with the starting pressure difference, controlling the air supply system to continuously operate.

In some embodiments, the apparatus comprises: comprising a processor and a memory storing program instructions, the processor being configured to execute the start-up control method for a refrigeration appliance as described previously when executing the program instructions.

In some embodiments, the refrigeration equipment comprises the starting control device for the refrigeration equipment.

In some embodiments, the storage medium stores program instructions that, when executed, perform a start-up control method for a refrigeration appliance as previously described.

The starting control method, the starting control device, the refrigeration equipment and the medium for the refrigeration equipment, which are provided by the embodiment of the disclosure, can realize the following technical effects:

and when the refrigeration equipment is determined to be started, controlling the air supply system to be started to establish air supply pressure difference. And under the condition that the air supply pressure difference value is matched with the starting pressure difference, representing that the air supply pressure difference is established. The refrigeration equipment controls the air supply system to continuously operate at the moment, so that the air supply pressure difference of the refrigeration equipment is enough to continuously maintain the starting and normal operation of the compressor. Therefore, the step of establishing the air supply pressure difference is not required to be executed again before the compressor is started in the subsequent process, so that the starting time of the centrifugal refrigeration equipment in the starting stage of the compressor is effectively shortened, and the quick starting of the compressor is realized.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

FIG. 1 is a system schematic of a centrifugal refrigeration apparatus;

FIG. 2 is a schematic diagram of a start-up control method for a refrigeration appliance according to an embodiment of the present disclosure;

FIG. 3 is a schematic diagram of another start-up control method for a refrigeration appliance provided by an embodiment of the present disclosure;

FIG. 4 is a schematic diagram of another start-up control method for a refrigeration appliance provided by an embodiment of the present disclosure;

FIG. 5 is a schematic diagram of another start-up control method for a refrigeration appliance provided by an embodiment of the present disclosure;

FIG. 6 is a schematic diagram of another start-up control method for a refrigeration appliance provided by an embodiment of the present disclosure;

FIG. 7 is a schematic diagram of another start-up control method for a refrigeration appliance provided by an embodiment of the present disclosure;

FIG. 8 is a schematic diagram of another start-up control method for a refrigeration appliance provided by an embodiment of the present disclosure;

FIG. 9 is a schematic diagram of an application of an embodiment of the present disclosure;

fig. 10 is a schematic diagram of a start control device for a refrigeration appliance according to an embodiment of the present disclosure.

Reference numerals:

10: a compressor; 20: an evaporator; 30: an air supply tank; 40: a condenser; 50: an electric heater;

60: an economizer; 701: a cooling water pump; 702: a chilled water pump.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

The term "plurality" means two or more unless otherwise specified.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

The term "correspond" may refer to an association or binding relationship, and a corresponds to B refers to an association or binding relationship between a and B.

Referring to fig. 1, a system diagram of a centrifugal refrigeration apparatus is provided in an embodiment of the present disclosure, where the centrifugal refrigeration apparatus includes a refrigerant circulation loop, an air supply system, and a controller. The refrigerant circulation circuit includes a compressor 10, an evaporator 20, a throttling element, and a condenser 40, which are sequentially communicated through a pipe. Wherein one end of the condenser 40 is communicated with the compressor 10, and the other end is communicated with the evaporator 20 through the economizer 60. The air supply system includes an air supply tank 30 and an electric heater 50. The air supply tank 30 has one end communicating with the compressor 10 and the other end communicating with the evaporator 20. The supply tank 30 is used to supply liquid refrigerant/vapor-liquid two-phase refrigerant to the compressor 10. The electric heater 50 heats the refrigerant in the air supply tank 30 to form a liquid refrigerant/vapor-liquid two-phase refrigerant. The controller may be configured to perform the following startup control method for the refrigeration appliance. A cooling water pump 701 is disposed on an input side of the heat exchange line of the condenser 40. The input side of the heat exchange line of the evaporator 20 is provided with a chilled water pump 702. The compressor 10 may be an air-suspension compressor provided with an air-suspension bearing, or may be a gas-liquid mixture compressor.

With reference to fig. 2, based on the centrifugal refrigeration apparatus, an embodiment of the present disclosure provides a start control method for a refrigeration apparatus, including:

and S01, controlling the air supply system to be started by the controller under the condition that the refrigeration equipment is determined to be started so as to establish air supply pressure difference through the air supply system.

And S02, acquiring an air supply pressure difference value of an air supply system by the controller.

And S03, controlling the gas supply system to continuously operate by the controller under the condition that the gas supply pressure difference value is matched with the starting pressure difference.

By adopting the starting control method for the refrigeration equipment, when the refrigeration equipment is determined to be started, the air supply system is controlled to be started to establish air supply pressure difference. And under the condition that the air supply pressure difference value is matched with the starting pressure difference, representing that the air supply pressure difference is established. The refrigeration equipment controls the air supply system to continuously operate at the moment, so that the air supply pressure difference of the refrigeration equipment is enough to continuously maintain the starting and normal operation of the compressor. Therefore, the step of establishing the air supply pressure difference is not required to be executed again before the compressor is started in the subsequent process, so that the starting time of the centrifugal refrigeration equipment in the starting stage of the compressor is effectively shortened, and the quick starting of the compressor is realized.

Optionally, the supply air pressure difference value matches the start pressure difference, including: the air supply pressure difference value is greater than or equal to the starting pressure difference.

Wherein the start-up pressure difference represents a critical value of the pressure difference for achieving a bearing levitation of the compressor arrangement. The specific value of the starting pressure difference can be determined according to the model of the compressor.

Optionally, the controller further comprises, after the air supply differential pressure value matches the starting differential pressure:

the controller controls the opening of the freezing water pump and the compressor.

Like this, the controller is when gas supply system continuously operates, and steerable frozen water pump and compressor are opened to realize refrigeration plant's normal operating.

It should be noted that the controller controls the frozen water and the compressor to be started, and may be executed simultaneously with or before the air supply system is controlled to continuously operate. The embodiments of the present disclosure may not specifically limit this.

Optionally, as shown in fig. 3, the controller controls the chilled water pump and the compressor to be turned on, and includes:

s11, the controller obtains a first outlet water temperature value of the evaporator.

And S12, the controller controls the cooling water pump to be started under the condition that the first effluent temperature value is matched with the starting temperature value within a first preset time.

In this step, the first effluent temperature value matches with the startup temperature value within a first preset duration, including: the first outlet water temperature value is continuously greater than or equal to the starting temperature value within a first preset time length. The start-up temperature value may be determined based on the model of the compressor. The first preset time period may be 2s, 3s or other values.

And S13, the controller acquires a second flow value of the cooling water pump.

In this step, before the controller obtains the second flow value of cooling water pump, still include: the controller acquires the on state of the cooling water pump. The controller acquires a second flow value of the cooling water pump in a case where the on state of the cooling water pump indicates that the cooling water pump is on.

And S14, controlling the compressor to be started by the controller under the condition that the second flow value meets the preset flow condition.

In this way, the controller may determine that the evaporator meets the start-up condition when the first outlet temperature value matches the start-up temperature value for a first predetermined period of time. At this time, the controller controls the cooling water pump to be turned on to perform normal supply of the cooling water. And when the second flow value of the cooling water pump meets the preset flow condition, the controller can determine that the target type flow switch corresponding to the cooling water is closed. The controller controls the compressor to start up to realize the quick start of the compressor. Therefore, the controller can carry out the starting control of the compressor by integrating whether the evaporator meets the starting condition and the flow condition of the cooling water, thereby effectively shortening the starting time of the centrifugal refrigeration equipment in the starting stage of the compressor. Meanwhile, the controller can respond in time according to the temperature load change, and the real-time performance of the starting response of the compressor is improved.

Optionally, the cooling water pump is configured with a target flow switch. It should be noted that the target type flow switch configured on the cooling water pump may be continuously turned on after the refrigeration equipment is turned on. In this way, continuous monitoring of the water flow of the cooling water pump can be achieved to shorten the start-up duration of the compressor start-up phase and to maintain the effectiveness of the water flow protection.

Optionally, as shown in fig. 4, the controller controls the compressor to be turned on, including:

s21, the controller acquires the operation information of the device related to the compressor.

And S22, the controller controls the compressor to be started under the condition that the operation information shows that the device operates normally.

In this way, the controller determines whether the compressor has a fault based on the operation information of the device associated with the compressor. And controlling the compressor to be started when the device operates normally. The reliability of the operation of the compressor is ensured.

Optionally, the device comprises a frequency converter and a power supply. The frequency converter is electrically connected with the compressor and used for adjusting the rotating speed value of the compressor. The power supply device is used for supplying electric energy to the compressor.

In this way, the controller determines that the compressor is available in the event that it is determined that both the inverter and the power supply are operating properly. At this time, the controller controls the compressor to be started again. The method improves the accuracy of the detection of the running state of the compressor on the basis of shortening the starting time of the starting stage of the compressor.

It is to be understood that the controller continues to acquire operational information of the device in the event that the operational information indicates that the device is malfunctioning. And the controller controls the compressor to be started under the condition that the new operation information indicates that the device operates normally. In addition, the controller pushes alarm information in the case that the operation information indicates that the device has a failure. Therefore, the user can be prompted to troubleshoot in time.

With reference to fig. 5, an embodiment of the present disclosure further provides a start control method for a refrigeration apparatus, including:

and S31, the controller controls the air supply system to be started under the condition that the refrigeration equipment is determined to be started, so that air supply pressure difference is established through the air supply system.

And S32, acquiring an air supply pressure difference value of the air supply system by the controller.

And S33, the controller controls the air supply system to continuously operate and controls the cooling water pump to be started under the condition that the air supply pressure difference value is matched with the starting pressure difference.

And S34, the controller acquires the air supply pressure difference value of the air supply system again.

And S35, the controller controls the compressor to be started under the condition that the new air supply pressure difference value is matched with the starting pressure difference value.

By adopting the starting control method for the refrigeration equipment, after the controller controls the air supply system to continuously operate and controls the cooling water pump to be started, the controller obtains the air supply pressure difference value again and compares the new air supply pressure difference value with the starting pressure difference so as to determine whether the air supply pressure difference meets the requirement of continuously matching with the starting pressure difference again. And controlling the compressor to be started when the matching is determined. Therefore, the real-time performance of air supply pressure difference judgment during the starting of the compressor is realized, and the stability of the quick starting of the compressor is improved while the starting time of the centrifugal refrigeration equipment at the starting stage of the compressor is shortened.

With reference to fig. 6, an embodiment of the present disclosure further provides a start control method for a refrigeration apparatus, including:

and S41, the controller controls the air supply system to be started under the condition that the refrigeration equipment is determined to be started, so that air supply pressure difference is established through the air supply system.

And S42, the controller acquires an air supply pressure difference value of the air supply system.

S43, the controller controls the air supply system to continuously operate and controls the cooling water pump to be started under the condition that the air supply pressure difference value is matched with the starting pressure difference.

And S44, acquiring a second outlet water temperature value of the evaporator by the controller.

And S45, the controller controls the compressor to be closed under the condition that the second effluent temperature value is matched with the shutdown temperature value within a second preset time.

By adopting the starting control method for the refrigeration equipment provided by the embodiment of the disclosure, when the second outlet water temperature value is matched with the shutdown temperature value within the second preset time, the controller can determine that the evaporator meets the shutdown condition. At this time, the controller controls the compressor to be turned off. Meanwhile, the controller can respond in time according to the temperature load change, and the real-time performance of the compressor shutdown response is improved.

Optionally, the second effluent temperature value matches the shutdown temperature value within a second preset duration, including: the second effluent temperature value is continuously greater than or equal to the shutdown temperature value within a second preset time period. The shutdown temperature value may be determined based on the model of the compressor. The second preset time period may be 2s, 3s or other values. The second preset duration may be equal to the first preset duration, or may not be equal to the first preset duration. The embodiments of the present disclosure may not be particularly limited thereto.

It should be noted that, when the second effluent temperature value matches the shutdown temperature within the second preset time period, the controller controls the compressor to be turned off, and then obtains the operation information of the device associated with the compressor again, and when the operation information indicates that the device is operating normally, controls the compressor to be turned on again. Therefore, after the air supply system establishes the sequential air supply pressure difference when the refrigeration equipment is started, the air supply system continuously keeps running. When the compressor is started again after being closed, the bearing suspension of the air supply system can be normally maintained without executing the step of reestablishing the air supply pressure difference, so that the restart time of restarting the compressor after the compressor is stopped is shortened, and the quick restart of the compressor is realized. The method can effectively improve the starting efficiency of the refrigeration equipment.

With reference to fig. 7, an embodiment of the present disclosure further provides a start-up control method for a refrigeration apparatus, including:

and S51, the controller acquires a first flow value of the chilled water pump under the condition of determining the starting of the refrigeration equipment.

In this step, before the controller obtains the first flow value of frozen water pump, still include: the controller acquires the starting state of the chilled water pump. The controller acquires a first flow value of the chilled water pump when the on state of the chilled water pump indicates that the chilled water pump is on.

And S52, the controller controls the air supply system to be started under the condition that the first flow value meets the preset flow condition, so that air supply pressure difference is established through the air supply system.

And S53, the controller acquires an air supply pressure difference value of the air supply system.

And S54, the controller controls the air supply system to continuously operate and controls the cooling water pump and the compressor to be started under the condition that the air supply pressure difference value is matched with the starting pressure difference.

By adopting the starting control method for the refrigeration equipment provided by the embodiment of the disclosure, when the first flow value of the chilled water pump meets the preset flow condition, the controller can determine that the target type flow switch corresponding to the chilled water is closed. The controller controls the air supply system to be started and controls the air supply system to continuously operate when the air supply pressure difference value is matched with the starting pressure difference so as to realize the quick start of the compressor. Therefore, the controller can perform the starting control of the compressor according to the flow condition of the chilled water.

It is to be understood that the step of the controller acquiring the first flow value of the chilled water pump may be performed simultaneously with the step of the controller acquiring the air supply differential pressure value of the air supply system, may be performed before the controller acquires the air supply differential pressure value of the air supply system, or may be performed after the controller acquires the air supply differential pressure value of the air supply system. The embodiments of the present disclosure may not be particularly limited thereto.

Optionally, the chilled water pump is provided with a target type flow switch, and the flow value is determined to meet the preset flow condition according to the following modes:

the flow value of the target type flow switch is larger than or equal to the preset flow value.

The preset flow value is a critical flow value corresponding to the target type flow switch which is switched from an open state to a closed state. The flow value includes a first flow value and/or a second flow value.

It should be noted that the target type flow switch of the chilled water pump can be continuously turned on after the refrigeration equipment is turned on. In this way, a continuous monitoring of the water flow of the chilled water pump and/or the cooling water pump can be achieved and the effectiveness of the water flow protection is maintained.

With reference to fig. 8, an embodiment of the present disclosure further provides a start control method for a refrigeration apparatus, including:

and S61, the controller controls the air supply system to be started under the condition that the refrigeration equipment is determined to be started, so that air supply pressure difference is established through the air supply system.

And S62, the controller acquires an air supply pressure difference value of the air supply system.

And S63, judging whether the air supply pressure difference value is matched with the starting pressure difference by the controller, if so, executing S64, and if not, executing S65.

And S64, controlling the gas supply system to continuously operate by the controller.

And S65, the controller controls the electric heater to increase power so as to increase the air supply pressure difference value by increasing the pressure value of the air supply tank until the air supply pressure difference value is matched with the starting pressure difference.

By adopting the starting control method for the refrigeration equipment, which is provided by the embodiment of the disclosure, the air supply pressure difference value represents the difference between the pressure value of the air supply tank and the bearing exhaust pressure value of the compressor. When the supply air pressure difference value does not match the start-up pressure difference, it is indicated that the supply air pressure difference value is less than the start-up pressure difference. For this, the controller controls the electric heater to increase its power value, thereby increasing the pressure value of the air supply tank. In addition, since the compressor has not been started up yet at the stage of the air supply system establishing the air supply pressure difference, the bearing discharge pressure values of the compressor are substantially kept in balance. By regulating and controlling the power of the electric heater, the air supply pressure difference can be quickly and effectively established, the efficiency of establishing the air supply pressure difference is improved, and the time for establishing the air supply pressure difference is shortened.

In practical application, as shown in fig. 9, the start control method for the refrigeration equipment specifically executes the following steps:

s71, the controller acquires a first flow value of the chilled water pump under the condition that the refrigeration equipment is determined to be started.

And S72, the controller controls the air supply system to be started under the condition that the first flow value meets the preset flow condition, so that air supply pressure difference is established through the air supply system.

And S73, the controller acquires an air supply pressure difference value of the air supply system, and controls the air supply system to continuously operate after the air supply pressure difference value is matched with the starting pressure difference.

And S74, the controller acquires a first outlet water temperature value of the evaporator, judges whether the first outlet water temperature value is matched with the starting temperature within a first preset time period, and executes S75 if the first outlet water temperature value is matched with the starting temperature.

And S75, the controller acquires a second flow value of the cooling water pump, judges whether the second flow value meets a preset flow condition, and executes S76 if the second flow value meets the preset flow condition.

S76, the controller detects whether the compressor is available, and if so, the S77 is executed.

And S77, the controller acquires the air supply pressure difference again and judges whether the new air supply pressure difference value is matched with the starting pressure difference, and if so, the S78 is executed.

And S78, controlling the compressor to be started by the controller.

And S79, the controller acquires a second effluent temperature value of the evaporator and controls the compressor to be closed when the second effluent temperature value is matched with the shutdown temperature value within a second preset time.

And S80, the controller acquires the first outlet water temperature value of the evaporator again, judges whether the new first outlet water temperature value is matched with the starting temperature within a first preset time period, and returns to execute S76 if the new first outlet water temperature value is matched with the starting temperature.

As shown in fig. 10, an embodiment of the present disclosure provides a start control device for a refrigeration apparatus, which includes a processor (processor) 100 and a memory (memory) 101. Optionally, the apparatus may also include a Communication Interface (Communication Interface) 102 and a bus 103. The processor 100, the communication interface 102, and the memory 101 may communicate with each other via a bus 103. The communication interface 102 may be used for information transfer. The processor 100 may call logic instructions in the memory 101 to execute the start-up control method for the refrigeration appliance of the above-described embodiment.

In addition, the logic instructions in the memory 101 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products.

The memory 101, which is a computer-readable storage medium, may be used for storing software programs, computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 100 executes functional applications and data processing by executing program instructions/modules stored in the memory 101, that is, implements the start control method for the refrigeration equipment in the above-described embodiments.

The memory 101 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. In addition, the memory 101 may include a high-speed random access memory, and may also include a nonvolatile memory.

The embodiment of the disclosure provides a refrigeration device, which comprises the above starting control device for the refrigeration device.

The embodiment of the disclosure provides a computer-readable storage medium, which stores computer-executable instructions configured to execute the above-mentioned startup control method for a refrigeration device.

The disclosed embodiments provide a computer program product comprising a computer program stored on a computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, cause the computer to perform the above-described start-up control method for a refrigeration appliance.

The computer readable storage medium described above may be a transitory computer readable storage medium or a non-transitory computer readable storage medium.

The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product, where the computer software product is stored in a storage medium and includes one or more instructions to enable 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 of the embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium comprising: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes, and may also be a transient storage medium.

The above description and the drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. Furthermore, the words used in the specification are words of description only and are not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising one of 8230," does not exclude the presence of additional like elements in a process, method or device comprising the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.

Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software may depend upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments. It can be clearly understood by the skilled person that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units may be only one type of logical functional division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical 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 network units. Some or all of the units can be selected according to actual needs to implement the present embodiment. In addition, functional units in the embodiments of the present disclosure 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 flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than disclosed in the description, and sometimes there is no specific order between the different operations or steps. For example, two sequential operations or steps may in fact be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. Each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

Claims

1. A start-up control method for a refrigeration appliance, characterized by comprising:

under the condition that the refrigeration equipment is determined to be started, controlling an air supply system to be started so as to establish air supply pressure difference through the air supply system;

acquiring an air supply pressure difference value of the air supply system;

and under the condition that the air supply pressure difference value is matched with the starting pressure difference, controlling the air supply system to continuously operate.

2. The method of claim 1, wherein matching the supply air pressure differential value to the start-up pressure differential further comprises:

and controlling the opening of the freezing water pump and the compressor.

3. The method of claim 2, wherein controlling the chilled water pump and compressor on comprises:

acquiring a first outlet water temperature value of an evaporator;

controlling a cooling water pump to be started under the condition that the first outlet water temperature value is matched with the starting temperature value within a first preset time period;

acquiring a second flow value of the cooling water pump;

and controlling the compressor to be started under the condition that the second flow value meets a preset flow condition.

4. The method of claim 3, wherein the controlling the compressor to turn on comprises:

acquiring operation information of a device associated with the compressor;

and controlling the compressor to be started under the condition that the operation information indicates that the device operates normally.

5. The method of claim 2, wherein the controlling the compressor to turn on comprises:

re-acquiring an air supply pressure difference value of the air supply system;

and controlling the compressor to be started under the condition that the new air supply pressure difference value is matched with the starting pressure difference.

6. The method of claim 2, wherein after controlling the compressor to turn on, further comprising:

acquiring a second outlet water temperature value of the evaporator;

and under the condition that the second effluent temperature value is matched with the shutdown temperature value within a second preset time, controlling the compressor to be closed.

7. The method according to any one of claims 1 to 6, wherein the determining that the refrigeration equipment is powered on further comprises:

acquiring a first flow value of a chilled water pump;

and controlling the air supply system to be continuously started under the condition that the first flow value meets a preset flow condition.

8. A start-up control device for a refrigeration appliance, comprising a processor and a memory in which program instructions are stored, characterized in that the processor is configured, upon execution of the program instructions, to carry out a start-up control method for a refrigeration appliance according to any one of claims 1 to 7.

9. Refrigeration appliance, characterized in that it comprises a start-up control for a refrigeration appliance as claimed in claim 8.

10. A storage medium storing program instructions, characterized in that the program instructions, when executed, perform a start-up control method for a refrigeration appliance according to any one of claims 1 to 7.