CN112611125B - Refrigerant parameter correction method and device - Google Patents

Refrigerant parameter correction method and device Download PDF

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CN112611125B
CN112611125B CN202011508232.XA CN202011508232A CN112611125B CN 112611125 B CN112611125 B CN 112611125B CN 202011508232 A CN202011508232 A CN 202011508232A CN 112611125 B CN112611125 B CN 112611125B
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refrigerant
type
pressure unit
pressure
value
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CN112611125A (en
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程卓明
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Xinao Shuneng Technology Co Ltd
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Xinao Shuneng Technology Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B21/00—Machines, plants or systems, using electric or magnetic effects
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00—Problems to be solved
    • F25B2500/19—Calculation of parameters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

The invention discloses a method and a device for correcting parameters of a refrigerant, wherein the method comprises the following steps: acquiring the numerical value of the exhaust pressure in the refrigerator and the type of a refrigerant; determining a current pressure unit of the discharge pressure in the refrigerator according to the value and the type of the refrigerant; and correcting the current pressure unit into a preset standard pressure unit according to a unit conversion criterion. According to the method, the numerical value of the exhaust pressure in the refrigerator and the type of the refrigerant are obtained, the current pressure unit of the exhaust pressure in the refrigerator is determined according to the numerical value and the type of the refrigerant, the current pressure unit is corrected, the conversion of the pressure and the saturation temperature of the refrigerant is carried out by adopting a corresponding physical parameter function aiming at the most common refrigerant in the market, the correct judgment of the refrigerant unit is realized, and the support of an algorithm is realized.

Description

Refrigerant parameter correction method and device
Technical Field
The invention relates to the technical field of Internet of things, in particular to a refrigerant parameter correction method and a refrigerant parameter correction device.
Background
In the calculation of the digital parameters of the electric refrigerator, the condition that units of parameters of an internet of things are not uniform is often encountered, the most prominent is that the pressure unit and the site condition are different, on one hand, the type of the refrigerant influences the accurate use of the parameters, on the other hand, the units are not uniform, including the use of Bar, MPa, KPa and the like, how to automatically judge the units according to the type of the refrigerant and how to use the units in the subsequent calculation is directly influenced.
When units and magnitude levels of the existing Internet of things parameters are processed, the units and magnitude levels are often considered along with specific projects, and personalized judgment is carried out according to the parameter characteristics of the Internet of things points of specific units in each project. This state of the art reveals a lack of a generalized, standardized approach when building a universal, internet-of-things platform. Particularly, when the pressure parameter of the refrigerator enters into the digital calculation, if the parameter of the refrigerant pressure unit is not input (which is often the case), the digital algorithm cannot identify the refrigerant pressure unit, and further it is not known which physical property function is adopted for calculation, so that the digital calculation cannot be continued.
Disclosure of Invention
The present invention aims to solve at least one of the above technical problems to at least some extent.
Therefore, a first object of the present invention is to provide a refrigerant parameter correction method, which performs a digital judgment on the most common refrigerants in the market, determines which refrigerant pressure unit is by a digital means when the refrigerant type is input, and further performs a conversion between the refrigerant pressure and the saturation temperature by using a corresponding physical parameter function, thereby realizing a correct judgment on the refrigerant pressure unit and supporting the algorithm.
The second purpose of the invention is to perform unit standardization conversion on the pressure unit of the known common refrigerant, and further calculate the pressure and saturation temperature of the refrigerant by adopting the corresponding physical property parameter function, so as to realize the correct judgment on the pressure unit of the refrigerant and realize the support on the algorithm.
A third object of the invention is to propose a readable storage medium.
A fourth object of the invention is to propose a computing device.
In order to solve at least one of the above technical problems, the present disclosure provides a refrigerant parameter correction method and apparatus, and a readable storage medium and a computing device.
In a first aspect, the present invention provides a refrigerant parameter correction method, comprising:
acquiring the numerical value of the exhaust pressure in the refrigerator and the type of a refrigerant;
determining a current pressure unit of the discharge pressure according to the value and the type of the refrigerant;
and correcting the current pressure unit into a preset standard pressure unit according to a unit conversion criterion.
Optionally, the determining the type of refrigerant and the current pressure unit of the discharge pressure according to the value includes:
when the value is more than 400 and less than or equal to 4000 and the type of the refrigerant in the refrigerating machine is R134a, the current pressure unit of the exhaust pressure is KPa;
when the value is greater than 4 and less than or equal to 40, and the type of the refrigerant in the refrigerating machine is R134a, the current pressure unit of the exhaust pressure is Bar;
when the value is greater than 0.4 and equal to or less than 4 and the type of refrigerant in the refrigerator is R134a, the current pressure unit of the discharge pressure is MPa.
Optionally, the determining the type of refrigerant and the current pressure unit of the discharge pressure according to the numerical value includes:
when the value is more than 600 and less than or equal to 6000, the type of the refrigerant in the refrigerating machine is R22, and the current pressure unit of the exhaust pressure is KPa;
when the value is greater than 6 and less than or equal to 60, and the type of the refrigerant in the refrigerating machine is R22, the current pressure unit of the exhaust pressure is Bar;
when the value is greater than 0.6 and less than or equal to 6 and the type of the refrigerant in the refrigerating machine is R22, the current pressure unit of the exhaust pressure is MPa.
Optionally, the method further comprises:
and when the numerical value does not belong to the preset range, determining that the exhaust pressure in the refrigerating machine is abnormal.
In a second aspect, the present invention provides a refrigerant parameter correction apparatus, comprising: a parameter obtaining module, a parameter determining module and a parameter correcting module, wherein,
the parameter acquisition module is used for acquiring the numerical value of the exhaust pressure in the refrigerator and the type of the refrigerant;
the parameter determining module is used for determining the current pressure unit of the discharge pressure according to the numerical value and the type of the refrigerant;
and the parameter correction module is used for correcting the current pressure unit into a preset standard pressure unit according to a unit conversion criterion.
Optionally, the parameter determining module is specifically configured to determine, when the value is greater than 400 and equal to or less than 4000 and the type of refrigerant in the refrigerator is R134a, that the current pressure unit of the discharge pressure is KPa;
when the value is greater than 4 and less than or equal to 40 and the type of the refrigerant in the refrigerating machine is R134a, determining that the current pressure unit of the exhaust pressure is Bar;
when the value is greater than 0.4 and equal to or less than 4 and the type of refrigerant in the refrigerator is R134a, the current pressure unit of the discharge pressure is determined to be MPa.
Optionally, the parameter determining module is specifically configured to, when the value is greater than 600 and equal to or less than 6000, and the type of the refrigerant in the refrigerator is R22, determine the current pressure unit of the discharge pressure as KPa;
when the value is greater than 6 and less than or equal to 60, and the type of the refrigerant in the refrigerating machine is R22, the current pressure unit of the exhaust pressure is Bar;
when the value is greater than 0.6 and less than or equal to 6, and the type of the refrigerant in the refrigerating machine is R22, the current pressure unit of the exhaust pressure is MPa.
Optionally, the apparatus further comprises: and the abnormality judgment module is used for determining that the exhaust pressure in the refrigerating machine is abnormal when the numerical value does not belong to a preset range.
In a third aspect, embodiments of the present invention provide a readable storage medium having executable instructions thereon, which when executed, cause a computer to perform the operations as included in the first aspect.
In a fourth aspect, an embodiment of the present invention provides a computing device, including: one or more processors, memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors to perform the operations included in the first aspect.
The method comprises the steps of obtaining a numerical value and a refrigerant type of the exhaust pressure in the refrigerator, determining the current pressure unit of the exhaust pressure of the refrigerant in the refrigerator according to the numerical value and the refrigerant type, correcting the current pressure unit, carrying out digital judgment on the most common refrigerant in the market, judging which pressure unit is by a digital means under the condition of input of the refrigerant type, further adopting a corresponding physical property parameter function to carry out conversion of the pressure and the saturation temperature of the refrigerant, and realizing correct judgment on the refrigerant type and unit so as to realize support on an algorithm.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic flow chart of a refrigerant parameter correction method according to an embodiment of the present invention;
fig. 2 is a block diagram of a refrigerant parameter correction apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer and more complete, the technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention, and based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides a refrigerant parameter correction method, including:
acquiring the numerical value of the exhaust pressure in the refrigerator and the type of a refrigerant;
determining a current pressure unit of the discharge pressure of the refrigerant in the refrigerator according to the value and the type of the refrigerant;
and correcting the current pressure unit into a preset standard pressure unit according to a unit conversion criterion.
It is worth mentioning that before obtaining the value of the discharge pressure in the refrigerator, it is required that the refrigerator is started to operate, and a relatively stable operation state is reached at a certain time interval from the start. The names of the exhaust pressures in different units, such as the condensing pressure and the high pressure in other units, all represent the same meaning. The unit conversion criterion differs in different embodiments, and if KPa and Bar are both corrected to a pressure unit of MPa in the present embodiment, the unit conversion criterion is 1000kpa =1mpa and 10bar =1mpa. In other embodiments, both MPa and Bar may be corrected to the unit of KPa, and may be converted accordingly. And for the condition that the current pressure unit is consistent with the preset standard pressure unit, the current pressure unit does not need to be corrected.
In the embodiment, by acquiring a numerical value of the exhaust pressure in the refrigerator, determining the type of the refrigerant in the refrigerator and the current pressure unit of the exhaust pressure according to the numerical value, correcting the current pressure unit, judging which refrigerant pressure unit is through a digital means under the condition that the type of the refrigerant is input, and then converting the pressure and the saturation temperature of the refrigerant by adopting a corresponding physical property parameter function, so as to realize the correct judgment of the type and the unit of the refrigerant, and realize the support of an algorithm.
In one embodiment of the present invention, the determining the type of the refrigerant and the current pressure unit of the discharge pressure according to the value includes:
when the value is greater than 400 and less than or equal to 4000 and the type of the refrigerant in the refrigerating machine is R134a, determining the current pressure unit of the exhaust pressure to be KPa;
when the value is greater than 4 and less than or equal to 40 and the type of the refrigerant in the refrigerating machine is R134a, determining that the current pressure unit of the exhaust pressure is Bar;
when the value is greater than 0.4 and equal to or less than 4 and the type of refrigerant in the refrigerator is R134a, the current pressure unit of the discharge pressure is determined to be MPa.
When the value is more than 600 and less than or equal to 6000, the type of the refrigerant in the refrigerating machine is R22, and the current pressure unit of the exhaust pressure is KPa;
when the value is greater than 6 and less than or equal to 60, and the type of the refrigerant in the refrigerating machine is R22, the current pressure unit of the exhaust pressure is Bar;
when the value is greater than 0.6 and less than or equal to 6 and the type of the refrigerant in the refrigerating machine is R22, the current pressure unit of the exhaust pressure is MPa.
In this embodiment, in the case of the input of the refrigerant type, the refrigerant type is judged by the digitizing means, and the digitizing judgment of the refrigerant is realized.
In one embodiment of the invention, the method further comprises:
and when the numerical value does not belong to the preset range, determining that the exhaust pressure in the refrigerating machine is abnormal.
In the embodiment, when the refrigerating machine normally operates, the exhaust pressure of R22 and R134a refrigerants is in a normal operation range, the normal operation range of R22 in the embodiment is 600-6000Kpa, 6-60Bar and 0.6-6MPa, the normal operation range of R134a is 400-4000Kpa, 4-40Bar and 0.4-4MPa, and if the value of the exhaust pressure is not in any range, the exhaust pressure in the refrigerating machine is judged to be abnormal.
As shown in fig. 2, the present invention provides a refrigerant parameter correction apparatus, comprising: a parameter acquisition module, a parameter determination module and a parameter correction module, wherein,
the parameter acquisition module is used for acquiring the numerical value of the exhaust pressure in the refrigerator and the type of the refrigerant;
the parameter determining module is used for determining the current pressure unit of the exhaust pressure of the refrigerant in the refrigerator according to the numerical value and the type of the refrigerant;
and the parameter correction module is used for correcting the current pressure unit into a preset standard pressure unit according to a unit conversion criterion.
In an embodiment of the present invention, the parameter determination module is specifically configured to, optionally, determine that the current pressure unit of the discharge pressure is KPa when the value is greater than 400 and equal to or less than 4000 and the type of the refrigerant in the refrigerator is R134 a; when the value is greater than 4 and less than or equal to 40 and the type of the refrigerant in the refrigerating machine is R134a, determining that the current pressure unit of the exhaust pressure is Bar; when the value is greater than 0.4 and equal to or less than 4 and the type of refrigerant in the refrigerator is R134a, the current pressure unit of the discharge pressure is determined to be MPa. Optionally, the parameter determining module is specifically configured to, when the value is greater than 600 and equal to or less than 6000, and the type of the refrigerant in the refrigerator is R22, determine the current pressure unit of the discharge pressure as KPa; when the value is greater than 6 and less than or equal to 60, and the type of the refrigerant in the refrigerating machine is R22, the current pressure unit of the exhaust pressure is Bar; when the value is greater than 0.6 and less than or equal to 6 and the type of the refrigerant in the refrigerating machine is R22, the current pressure unit of the exhaust pressure is MPa.
In one embodiment of the invention, the apparatus further comprises: and the abnormality judgment module is used for determining that the exhaust pressure in the refrigerating machine is abnormal when the numerical value does not belong to a preset range.
It should be understood that the various techniques described herein may be implemented in connection with hardware or software or, alternatively, with a combination of both. Thus, the methods and apparatus of the present invention, or certain aspects or portions thereof, may take the form of program code (i.e., instructions) embodied in tangible media, such as floppy diskettes, CD-ROMs, hard drives, or any other machine-readable storage medium, wherein, when the program is loaded into and executed by a machine, such as a computer, the machine becomes an apparatus for practicing the invention.
In the case of program code execution on programmable computers, the computing device will generally include a processor, a storage medium readable by the processor (including volatile and non-volatile memory and/or storage elements), at least one input device, and at least one output device. Wherein the memory is configured to store program code; the processor is configured to perform the various methods of the present invention according to instructions in the program code stored in the memory.
By way of example, and not limitation, computer readable media may comprise computer storage media and communication media. Computer-readable media includes both computer storage media and communication media. Computer storage media store information such as computer readable instructions, data structures, program modules or other data. Communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media. Combinations of any of the above are also included within the scope of computer readable media.
It should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the invention and aiding in the understanding of one or more of the various inventive aspects. However, the method of the invention should not be construed to reflect the intent: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing inventive embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the modules or units or components of the apparatus in the examples invented herein may be arranged in an apparatus as described in this embodiment or alternatively may be located in one or more apparatuses different from the apparatus in this example. The modules in the foregoing examples may be combined into one module or may be further divided into multiple sub-modules.
Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features of the invention in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so invented, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature of the invention in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
Furthermore, some of the described embodiments are described herein as a method or combination of method elements that can be performed by a processor of a computer system or by other means of performing the described functions. A processor having the necessary instructions for carrying out the method or method elements thus forms a means for carrying out the method or method elements. Further, the elements of the apparatus embodiments described herein are examples of the following apparatus: the apparatus is used to implement the functions performed by the elements for the purpose of carrying out the invention.
As used herein, unless otherwise specified the use of the ordinal adjectives "first", "second", "third", etc., to describe a common object, merely indicate that different instances of like objects are being referred to, and are not intended to imply that the objects so described must be in a given sequence, either temporally, spatially, in ranking, or in any other manner.
While the invention has been described with respect to a limited number of embodiments, those skilled in the art, having benefit of this description, will appreciate that other embodiments can be devised which do not depart from the scope of the invention as disclosed herein. Moreover, it should be noted that the language used in the specification has been principally selected for readability and instructional purposes, and may not have been selected to delineate or circumscribe the inventive subject matter. Accordingly, many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the appended claims. The present invention is to be considered as illustrative and not restrictive in character, with the scope of the invention being indicated by the appended claims.

Claims (6)

1. A refrigerant parameter correction method, characterized by comprising:
acquiring the numerical value of the exhaust pressure in the refrigerator and the type of a refrigerant, wherein the refrigerator is started to operate before the numerical value of the exhaust pressure in the refrigerator is acquired, and a certain time interval is formed between the starting and the stable operation state;
determining a current pressure unit of the discharge pressure according to the value and the type of the refrigerant;
correcting the current pressure unit into a preset standard pressure unit according to a unit conversion criterion, wherein the preset standard pressure unit has a corresponding physical parameter function so as to convert the pressure and saturation temperature of the refrigerant by adopting the physical parameter function corresponding to the preset standard pressure unit;
the determining a current pressure unit of the discharge pressure based on the value and the type of refrigerant includes:
when the numerical value is greater than 400 and less than or equal to 4000 and the type of the refrigerant in the refrigerating machine is R134a, the current pressure unit of the exhaust pressure is KPa;
when the value is greater than 4 and less than or equal to 40, and the type of the refrigerant in the refrigerating machine is R134a, the current pressure unit of the exhaust pressure is Bar;
when the value is greater than 0.4 and less than or equal to 4 and the type of the refrigerant in the refrigerating machine is R134a, the current pressure unit of the exhaust pressure is MPa;
the determining a current pressure unit of the discharge pressure based on the value and the type of refrigerant includes:
when the value is more than 600 and less than or equal to 6000, the type of the refrigerant in the refrigerating machine is R22, and the current pressure unit of the exhaust pressure is KPa;
when the value is greater than 6 and less than or equal to 60, and the type of the refrigerant in the refrigerating machine is R22, the current pressure unit of the exhaust pressure is Bar;
when the value is greater than 0.6 and less than or equal to 6 and the type of the refrigerant in the refrigerating machine is R22, the current pressure unit of the exhaust pressure is MPa.
2. The refrigerant parameter correction method as recited in claim 1, further comprising:
and when the numerical value does not belong to the preset range, determining that the exhaust pressure in the refrigerating machine is abnormal.
3. A refrigerant parameter correction apparatus, characterized by comprising: a parameter obtaining module, a parameter determining module and a parameter correcting module, wherein,
the parameter acquisition module is used for acquiring the numerical value of the exhaust pressure in the refrigerator and the type of the refrigerant, the refrigerator is started to operate before the numerical value of the exhaust pressure in the refrigerator is acquired, and a certain time interval is formed between the starting and the starting to achieve a relatively stable operation state;
the parameter determination module is used for determining the current pressure unit of the discharge pressure according to the numerical value and the type of the refrigerant;
the parameter correction module is used for correcting the current pressure unit into a preset standard pressure unit according to a unit conversion criterion, wherein the preset standard pressure unit has a corresponding physical property parameter function, and the physical property parameter function corresponding to the preset standard pressure unit is adopted to convert the pressure and the saturation temperature of the refrigerant;
the parameter determining module is specifically configured to determine that a current pressure unit of the discharge pressure is KPa when the numerical value is greater than 400 and less than or equal to 4000 and a type of a refrigerant in the refrigerator is R134 a; when the value is greater than 4 and less than or equal to 40 and the type of the refrigerant in the refrigerating machine is R134a, determining that the current pressure unit of the exhaust pressure is Bar; when the value is greater than 0.4 and less than or equal to 4 and the type of the refrigerant in the refrigerating machine is R134a, determining that the current pressure unit of the exhaust pressure is MPa;
the parameter determining module is specifically configured to determine that a current pressure unit of the discharge pressure is KPa when the numerical value is greater than 600 and less than or equal to 6000 and the type of the refrigerant in the refrigerator is R22; when the value is greater than 6 and less than or equal to 60, and the type of the refrigerant in the refrigerating machine is R22, determining that the current pressure unit of the exhaust pressure is Bar; when the value is greater than 0.6 and equal to or less than 6 and the type of refrigerant in the refrigerator is R22, the current pressure unit of the discharge pressure is determined to be MPa.
4. A refrigerant parameter correction apparatus as recited in claim 3, further comprising: and the abnormality judgment module is used for determining that the exhaust pressure in the refrigerating machine is abnormal when the numerical value does not belong to a preset range.
5. A readable storage medium having executable instructions thereon that, when executed, cause a computer to perform the method as included in any one of claims 1-2.
6. A computing device, comprising: one or more processors, memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors to perform the method as recited in any of claims 1-2.
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Citations (5)

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Publication number Priority date Publication date Assignee Title
CN1281204A (en) * 1998-09-01 2001-01-24 三洋电机株式会社 Digital type display device
CN2615376Y (en) * 2003-01-02 2004-05-12 辉宝实业有限公司 Digit control system for air compressor
CN203824686U (en) * 2014-04-30 2014-09-10 深圳市东露阳实业有限公司 Refrigerant pressure digital display and regulation device
CN203837356U (en) * 2014-04-09 2014-09-17 浙江飞越机电有限公司 Refrigerant recycler with digital display type pressure gauge
CN107101776A (en) * 2017-06-19 2017-08-29 深圳市沃特沃德股份有限公司 Force measuring method, device and dynamometer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1281204A (en) * 1998-09-01 2001-01-24 三洋电机株式会社 Digital type display device
CN2615376Y (en) * 2003-01-02 2004-05-12 辉宝实业有限公司 Digit control system for air compressor
CN203837356U (en) * 2014-04-09 2014-09-17 浙江飞越机电有限公司 Refrigerant recycler with digital display type pressure gauge
CN203824686U (en) * 2014-04-30 2014-09-10 深圳市东露阳实业有限公司 Refrigerant pressure digital display and regulation device
CN107101776A (en) * 2017-06-19 2017-08-29 深圳市沃特沃德股份有限公司 Force measuring method, device and dynamometer

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