CN115435492A - Muffler parameter determination method, device, equipment, storage medium and system - Google Patents

Muffler parameter determination method, device, equipment, storage medium and system Download PDF

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Publication number
CN115435492A
CN115435492A CN202211096039.9A CN202211096039A CN115435492A CN 115435492 A CN115435492 A CN 115435492A CN 202211096039 A CN202211096039 A CN 202211096039A CN 115435492 A CN115435492 A CN 115435492A
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China
Prior art keywords
sound propagation
liquid refrigerant
refrigerant
propagation speed
density
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CN202211096039.9A
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Chinese (zh)
Inventor
张晓�
陈运东
郝建领
林金涛
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Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
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Priority to CN202211096039.9A priority Critical patent/CN115435492A/en
Publication of CN115435492A publication Critical patent/CN115435492A/en
Priority to PCT/CN2023/090795 priority patent/WO2024051179A1/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/56—Remote control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/022—Compressor control arrangements
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/22—Indexing; Data structures therefor; Storage structures
    • G06F16/2282—Tablespace storage structures; Management thereof
    • 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
    • F25B2500/12—Sound

Abstract

The invention provides a method, a device, equipment, a storage medium and a system for determining parameters of a silencer, which are used for determining the temperature value, the pressure value, the proportion of gaseous refrigerants and the proportion of liquid refrigerants of a compressor pipeline. And then determining the density of the gaseous refrigerant, the density of the liquid refrigerant, the sound propagation speed of the gaseous refrigerant and the sound propagation speed of the liquid refrigerant based on the temperature value and the pressure value. And determining the sound propagation speed of the compressor pipeline based on the occupation ratio of the gaseous refrigerant, the occupation ratio of the liquid refrigerant, the density of the gaseous refrigerant, the density of the liquid refrigerant, the sound propagation speed of the gaseous refrigerant and the sound propagation speed of the liquid refrigerant. And determining a correction factor of the sound propagation speed of the compressor pipeline based on the proportion of the liquid refrigerant, and correcting the sound propagation speed of the compressor pipeline based on the correction factor. The length of the muffler is determined based on the modified sound propagation speed of the compressor pipe and the maximum amplitude noise frequency. The manufacturing efficiency of the silencer is improved, and the development cost of the silencer is reduced.

Description

Muffler parameter determination method, device, equipment, storage medium and system
Technical Field
The invention relates to the technical field of product testing, in particular to a method, a device, equipment, a storage medium and a system for determining parameters of a silencer.
Background
The air conditioner compressor periodically sucks air and discharges air, and high-temperature and high-pressure air discharged from the air outlet of the compressor causes pressure pulse in a pipeline and is the most main noise source of the air conditioner. The noise can be effectively reduced by adding the silencer into the pipeline. Due to the change of a compressor pipeline system and the difference of refrigerant states under various use working conditions, a large number of tests are required to verify in the process of matching the air conditioner with the silencer, so that the efficiency is low, and the development cost of the silencer is increased.
Disclosure of Invention
In order to solve the problems of low efficiency and high cost in the prior art, the invention provides a method, a device, equipment, a storage medium and a system for determining parameters of a silencer, which have the characteristics of high efficiency, lower cost and the like.
According to the specific embodiment of the invention, the method for determining the parameters of the silencer comprises the following steps:
acquiring a temperature value and a pressure value of a refrigerant in a compressor pipeline, the ratio of a gaseous refrigerant and the ratio of a liquid refrigerant;
determining the density of a gaseous refrigerant, the density of a liquid refrigerant, the sound propagation speed of the gaseous refrigerant and the sound propagation speed of the liquid refrigerant based on the temperature value and the pressure value;
determining the sound propagation speed of the compressor pipeline based on the occupation ratio of the gaseous refrigerant, the occupation ratio of the liquid refrigerant, the density of the gaseous refrigerant, the density of the liquid refrigerant, the sound propagation speed of the gaseous refrigerant and the sound propagation speed of the liquid refrigerant;
determining a correction factor of the sound propagation speed of the compressor pipeline based on the ratio of the liquid refrigerant, and correcting the sound propagation speed of the compressor pipeline based on the correction factor;
the length of the muffler is determined based on the modified sound propagation speed of the compressor pipe and the maximum amplitude noise frequency.
Further, the obtaining of the temperature value and the pressure value of the refrigerant in the compressor pipeline, the proportion of the gaseous refrigerant and the proportion of the liquid refrigerant includes:
and acquiring the temperature value, the pressure value, the proportion of the gaseous refrigerant and the proportion of the liquid refrigerant based on a gas-liquid two-phase sensor on the compressor pipeline.
Further, the determining the density of the gaseous refrigerant, the density of the liquid refrigerant, the sound propagation speed of the gaseous refrigerant, and the sound propagation speed of the liquid refrigerant based on the temperature value and the pressure value includes:
and taking the temperature value and the pressure value as key values, searching table data corresponding to the key values in a database, and obtaining the density of the gaseous refrigerant, the density of the liquid refrigerant, the sound propagation speed of the gaseous refrigerant and the sound propagation speed of the liquid refrigerant from the table data.
Further, the determining the sound propagation speed of the compressor pipeline based on the ratio of the gaseous refrigerant to the liquid refrigerant, the density of the gaseous refrigerant, the density of the liquid refrigerant, the sound propagation speed of the gaseous refrigerant, and the sound propagation speed of the liquid refrigerant includes:
based on
Figure BDA0003838719120000021
Obtaining the sound propagation speed of the compressor pipeline, wherein c sep Is the sound propagation speed of the compressor circuit,
Figure BDA0003838719120000022
the ratio of the gaseous refrigerant is set as the ratio,
Figure BDA0003838719120000023
is the ratio of the liquid refrigerant, rho g Is the density, rho, of the liquid refrigerant l Is the density of the liquid refrigerant, c g Is the sound propagation velocity of the gaseous refrigerant, c l Is the sound propagation velocity of the liquid refrigerant.
Further, the determining a correction factor of the sound propagation speed of the compressor pipeline based on the ratio of the liquid refrigerant, and correcting the sound propagation speed of the compressor pipeline based on the correction factor includes:
Figure BDA0003838719120000024
wherein c is seq For the corrected sound propagation velocity of the compressor line, δ is the correction factor when
Figure BDA0003838719120000031
Figure BDA0003838719120000032
When, δ =0; when the temperature is higher than the set temperature
Figure BDA0003838719120000033
When, δ =5; when in use
Figure BDA0003838719120000034
δ =10; when in use
Figure BDA0003838719120000035
δ =20; when in use
Figure BDA0003838719120000036
δ =50.
Further, the determining the length of the muffler based on the modified sound propagation speed and the maximum amplitude of the noise frequency of the compressor pipeline includes: based on
Figure BDA0003838719120000037
Obtaining the length of the silencer, wherein l is the length of the silencer, and f max N is a positive integer including 0, which is the frequency of the noise of the maximum amplitude.
According to the specific embodiment of the invention, the silencer parameter determining device comprises:
the parameter acquisition module is used for acquiring the temperature value and the pressure value of the refrigerant in the compressor pipeline, the ratio of the gaseous refrigerant and the ratio of the liquid refrigerant;
the parameter searching module is used for determining the density of the gaseous refrigerant, the density of the liquid refrigerant, the sound propagation speed of the gaseous refrigerant and the sound propagation speed of the liquid refrigerant based on the temperature value and the pressure value;
the speed determination module is used for determining the sound propagation speed of the compressor pipeline based on the proportion of the gaseous refrigerant, the proportion of the liquid refrigerant, the density of the gaseous refrigerant, the density of the liquid refrigerant, the sound propagation speed of the gaseous refrigerant and the sound propagation speed of the liquid refrigerant;
the speed correction module is used for determining a correction factor of the sound propagation speed of the compressor pipeline based on the proportion of the liquid refrigerant and correcting the sound propagation speed of the compressor pipeline based on the correction factor; and
and the length determining module is used for determining the length of the silencer based on the corrected sound propagation speed of the compressor pipeline and the noise frequency with the maximum amplitude.
According to a specific embodiment of the present invention, there is provided an apparatus including: a memory and a processor;
the memory is used for storing programs;
the processor is used for executing the program to realize the steps of the silencer parameter determination method.
According to an embodiment of the present invention, there is provided a storage medium having a computer program stored thereon, which when executed by a processor, implements the steps of the muffler parameter determination method as described above.
According to a specific embodiment of the present invention, a muffler parameter determining system is provided, which includes the above apparatus, and further includes: the gas-liquid two-phase sensor is used for acquiring a temperature value and a pressure value of a refrigerant in the compressor pipeline, the proportion of a gaseous refrigerant to a liquid refrigerant, and the communication module is used for sending the length of the silencer to a user terminal.
The muffler parameter determining method provided by the invention can obtain the temperature value and the pressure value of the refrigerant in the compressor pipeline, the proportion of the gaseous refrigerant and the proportion of the liquid refrigerant. And then determining the density of the gaseous refrigerant, the density of the liquid refrigerant, the sound propagation speed of the gaseous refrigerant and the sound propagation speed of the liquid refrigerant based on the temperature value and the pressure value. And determining the sound propagation speed of the compressor pipeline based on the occupation ratio of the gaseous refrigerant, the occupation ratio of the liquid refrigerant, the density of the gaseous refrigerant, the density of the liquid refrigerant, the sound propagation speed of the gaseous refrigerant and the sound propagation speed of the liquid refrigerant. And determining a correction factor of the sound propagation speed of the compressor pipeline based on the proportion of the liquid refrigerant, and correcting the sound propagation speed of the compressor pipeline based on the correction factor. The length of the muffler is determined based on the modified sound propagation speed of the compressor pipe and the maximum amplitude noise frequency. The silencer is manufactured according to the length of the obtained silencer, so that the silencer manufacturing efficiency is improved, and meanwhile, the development cost of the silencer is effectively reduced.
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 described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a flow chart of a muffler parameter determination method provided in accordance with an exemplary embodiment;
FIG. 2 is a block diagram of a muffler parameter determination apparatus provided in accordance with an exemplary embodiment;
FIG. 3 is a block diagram of an apparatus provided in accordance with an exemplary embodiment;
FIG. 4 is a block diagram of a muffler parameter determination system provided in accordance with an exemplary embodiment.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention provides a muffler parameter determination method, which may include the steps of:
101. and acquiring the temperature value, the pressure value, the proportion of the gaseous refrigerant and the proportion of the liquid refrigerant of the refrigerant in the pipeline of the compressor.
Referring to the structure diagram of the air-conditioning compressor pipeline system shown in fig. 4, the refrigeration and heating pipeline system mainly comprises a compressor 1, a liquid reservoir 2, a condenser 3, a four-way valve 4, an evaporator 5, an exhaust pipeline 6 and a gas return pipeline 7, and a gas-liquid two-phase sensor 8 is arranged on the exhaust pipeline 6 to obtain a temperature value, a pressure value, an occupation ratio of a gaseous refrigerant and an occupation ratio of a liquid refrigerant under a refrigeration working condition. The gas-liquid two-phase sensor 8 is arranged in the gas return pipeline 7, so that the temperature value, the pressure value, the proportion of gaseous refrigerants and the proportion of liquid refrigerants of the refrigerants under the heating working condition can be obtained. The silencer in the pipeline needs to be manufactured, and corresponding gas-liquid two-phase sensors can be used for collecting corresponding data.
102. And determining the density of the gaseous refrigerant, the density of the liquid refrigerant, the sound propagation speed of the gaseous refrigerant and the sound propagation speed of the liquid refrigerant based on the temperature value and the pressure value.
The obtained temperature value and pressure value can be searched in a preset table, the table can usually adopt a thermal calculation physical property parameter table, the table has corresponding density and sound propagation speed under temperature and pressure, and the density of the gaseous refrigerant, the density of the liquid refrigerant, the sound propagation speed of the gaseous refrigerant and the sound propagation speed of the liquid refrigerant can be obtained by correspondingly searching according to the measured temperature value and pressure value.
103. And determining the sound propagation speed of the compressor pipeline based on the occupation ratio of the gaseous refrigerant, the occupation ratio of the liquid refrigerant, the density of the gaseous refrigerant, the density of the liquid refrigerant, the sound propagation speed of the gaseous refrigerant and the sound propagation speed of the liquid refrigerant.
According to a calculation formula of sound propagation speed in a gas-liquid two-phase state:
Figure BDA0003838719120000051
the sound propagation velocity of the compressor pipe can be obtained, wherein c sep Is the sound propagation speed of the compressor circuit,
Figure BDA0003838719120000061
the ratio of the gaseous refrigerant is the ratio of the gaseous refrigerant,
Figure BDA0003838719120000062
is liquid refrigerant ratio, rho g Is the density of the liquid refrigerant, rho l Is in liquid stateDensity of refrigerant, c g Acoustic propagation velocity of gaseous coolant, c l Is the sound propagation velocity of the liquid refrigerant.
104. And determining a correction factor of the sound propagation speed of the compressor pipeline based on the occupation ratio of the liquid refrigerant, and correcting the sound propagation speed of the compressor pipeline based on the correction factor.
In the exhaust pipe or the return air pipe, the ratio of the liquid refrigerant has a large influence on the sound propagation speed in the gas-liquid two-phase state in the pipe, and therefore the sound propagation speed in the gas-liquid two-phase state is corrected according to the ratio of the liquid refrigerant. Specifically, when
Figure BDA0003838719120000063
δ =0; when the temperature is higher than the set temperature
Figure BDA0003838719120000064
When, δ =5; when the temperature is higher than the set temperature
Figure BDA0003838719120000065
δ =10; when the temperature is higher than the set temperature
Figure BDA0003838719120000066
δ =20; when in use
Figure BDA0003838719120000067
Figure BDA0003838719120000068
δ =50.δ is a correction factor, and the corrected sound propagation velocity is:
Figure BDA0003838719120000069
wherein c is seq Is the corrected sound propagation speed of the compressor line.
It can be understood that the occupation range of the liquid refrigerant and the value of the corresponding correction factor may be different according to different applied air conditioning systems, and those skilled in the art may adjust the occupation range according to the actual application requirements, and the invention is not limited herein.
105. The length of the muffler is determined based on the modified sound propagation speed of the compressor pipe and the maximum amplitude noise frequency.
In particular, based on
Figure BDA00038387191200000610
Obtaining the length of the silencer, wherein l is the length of the silencer, f max N is a positive integer including 0, which is the frequency of the noise of maximum amplitude.
Here, a muffler specification/kind summary table may be provided to determine the length according to the noise frequency. The silencer can be manufactured after the length is determined, so that the test verification times of the silencer and the manufacturing of the sample piece are effectively reduced, the development cost is reduced, and the matching success rate of the silencer is improved.
As an implementation manner of the above embodiment, determining the density of the gaseous refrigerant, the density of the liquid refrigerant, the sound propagation speed of the gaseous refrigerant, and the sound propagation speed of the liquid refrigerant based on the temperature value and the pressure value may include:
and taking the temperature value and the pressure value as key values, searching table data corresponding to the key values in the database, and obtaining the density of the gaseous refrigerant, the density of the liquid refrigerant, the sound propagation speed of the gaseous refrigerant and the sound propagation speed of the liquid refrigerant from the table data. Of course, those skilled in the art may also use other searching methods to search for data, and the present invention is not described herein again.
Based on the same design concept, the embodiment of the present invention shown in fig. 2 further provides a muffler parameter determining apparatus, which can implement the steps of the above muffler parameter determining method when operating, and the apparatus may include:
the parameter obtaining module 201 is configured to obtain a temperature value and a pressure value of a refrigerant in a compressor pipeline, an occupation ratio of a gaseous refrigerant, and an occupation ratio of a liquid refrigerant.
The parameter searching module 202 is configured to determine, based on the temperature value and the pressure value, a density of the gaseous refrigerant, a density of the liquid refrigerant, an acoustic propagation speed of the gaseous refrigerant, and an acoustic propagation speed of the liquid refrigerant.
The speed determination module 203 is configured to determine an acoustic propagation speed of the compressor pipeline based on an occupation ratio of the gaseous refrigerant, an occupation ratio of the liquid refrigerant, a density of the gaseous refrigerant, a density of the liquid refrigerant, an acoustic propagation speed of the gaseous refrigerant, and an acoustic propagation speed of the liquid refrigerant.
And the speed correction module 204 is configured to determine a correction factor of the sound propagation speed of the compressor pipeline based on the ratio of the liquid refrigerant, and correct the sound propagation speed of the compressor pipeline based on the correction factor. And
a length determination module 205 for determining a length of the muffler based on the modified sound propagation speed of the compressor pipe and the maximum amplitude noise frequency.
The device has the same beneficial effects as the muffler parameter determination method, and the specific implementation mode thereof can refer to the embodiment of the muffler parameter determination method, which is not described herein again.
Referring to fig. 3, an embodiment of the present invention also provides an apparatus, which may include: a memory 301 and a processor 302.
A memory 301 for storing programs.
A processor 302 for executing the program to implement the steps of the muffler parameter determining method as described above.
Embodiments of the present invention also provide a storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the muffler parameter determination method as described in the above embodiments.
Referring to fig. 4, an embodiment of the present invention further provides a muffler parameter determination system, including the apparatus according to the above embodiment, further including: the gas-liquid two-phase sensor 8 and the communication module 11 are connected with the processor 302, the gas-liquid two-phase sensor 8 is used for obtaining a temperature value and a pressure value of a refrigerant in a compressor pipeline, the proportion of a gaseous refrigerant and the proportion of a liquid refrigerant, and the communication module 11 is used for sending the length of the silencer to a user terminal.
Specifically, the communication module 11 may adopt a wireless communication module, for example, a bluetooth communication module, a WIFI communication module, a 4G communication module, a 5G communication module, and the like, and sends the obtained length of the muffler to the user terminal 10 such as a smart phone, an application, an operation platform, and the like of the user in the form of a short message for the user to use, and the processor 302 searches for corresponding parameters through the database 9.
The muffler parameter determining method, the muffler parameter determining device, the muffler parameter determining equipment, the muffler parameter determining storage medium and the muffler parameter determining system provided by the embodiment of the invention can effectively reduce the muffler test verification times, reduce the development cost and improve the muffler matching success rate.
While, for purposes of simplicity of explanation, the foregoing method embodiments have been described as a series of acts or combination of acts, it will be appreciated by those skilled in the art that the present invention is not limited by the illustrated ordering of acts, as some steps may occur in other orders or concurrently with other steps in accordance with the invention. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required by the invention.
It should be noted that, in this specification, each embodiment is described in a progressive manner, and each embodiment focuses on differences from other embodiments, and portions that are the same as and similar to each other in each embodiment may be referred to. For the device-like embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The steps in the method of each embodiment of the present invention may be sequentially adjusted, combined, and deleted according to actual needs, and the technical features described in each embodiment may be replaced or combined.
The modules and sub-modules in the device and the terminal of the embodiments of the invention can be combined, divided and deleted according to actual needs.
In the embodiments provided in the present invention, it should be understood that the disclosed terminal, apparatus and method may be implemented in other ways. For example, the above-described terminal embodiments are merely illustrative, and for example, the division of a module or a sub-module is only one logical division, and there may be other divisions when the terminal is actually implemented, for example, a plurality of sub-modules or modules may be combined or integrated into another module, or some features may be omitted or not executed. In addition, the shown or discussed coupling or direct coupling or communication connection between each other may be through some interfaces, indirect coupling or communication connection between devices or modules, and may be in an electrical, mechanical or other form.
The modules or sub-modules described as separate parts may or may not be physically separate, and parts that are modules or sub-modules may or may not be physical modules or sub-modules, may be located in one place, or may be distributed over a plurality of network modules or sub-modules. Some or all of the modules or sub-modules can be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In addition, each functional module or sub-module in each embodiment of the present invention may be integrated into one processing module, or each module or sub-module may exist alone physically, or two or more modules or sub-modules may be integrated into one module. The integrated modules or sub-modules may be implemented in the form of hardware, or may be implemented in the form of software functional modules or sub-modules.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. 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 present invention.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software unit executed by a processor, or in a combination of the two. The software cells may reside in Random Access Memory (RAM), memory, read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
Finally, it should also be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A muffler parameter determination method, comprising:
acquiring a temperature value and a pressure value of a refrigerant in a compressor pipeline, the ratio of a gaseous refrigerant and the ratio of a liquid refrigerant;
determining the density of the gaseous refrigerant, the density of the liquid refrigerant, the sound propagation speed of the gaseous refrigerant and the sound propagation speed of the liquid refrigerant based on the temperature value and the pressure value;
determining the sound propagation speed of the compressor pipeline based on the occupation ratio of the gaseous refrigerant, the occupation ratio of the liquid refrigerant, the density of the gaseous refrigerant, the density of the liquid refrigerant, the sound propagation speed of the gaseous refrigerant and the sound propagation speed of the liquid refrigerant;
determining a correction factor of the sound propagation speed of the compressor pipeline based on the ratio of the liquid refrigerant, and correcting the sound propagation speed of the compressor pipeline based on the correction factor;
the length of the muffler is determined based on the corrected sound propagation speed of the compressor pipe and the maximum amplitude of the noise frequency.
2. The method of claim 1, wherein the obtaining of the temperature value, the pressure value, the ratio of gaseous refrigerant and the ratio of liquid refrigerant in the compressor pipeline comprises:
and acquiring the temperature value, the pressure value, the proportion of the gaseous refrigerant and the proportion of the liquid refrigerant based on a gas-liquid two-phase sensor on the compressor pipeline.
3. The method of claim 1, wherein determining the density of the gaseous refrigerant, the density of the liquid refrigerant, the acoustic propagation velocity of the gaseous refrigerant, and the acoustic propagation velocity of the liquid refrigerant based on the temperature value and the pressure value comprises:
and taking the temperature value and the pressure value as key values, searching table data corresponding to the key values in a database, and obtaining the density of the gaseous refrigerant, the density of the liquid refrigerant, the sound propagation speed of the gaseous refrigerant and the sound propagation speed of the liquid refrigerant from the table data.
4. The method of claim 1, wherein the determining the acoustic propagation velocity of the compressor pipeline based on the fraction of the gaseous refrigerant, the fraction of the liquid refrigerant, the density of the gaseous refrigerant, the density of the liquid refrigerant, the acoustic propagation velocity of the gaseous refrigerant, and the acoustic propagation velocity of the liquid refrigerant comprises:
based on
Figure FDA0003838719110000021
Obtaining the sound propagation velocity of the compressor pipe, wherein c sep Is the sound propagation speed of the compressor circuit,
Figure FDA0003838719110000022
the ratio of the gaseous refrigerant is set as the ratio,
Figure FDA0003838719110000023
is the liquid refrigerant ratio, rho g Is the density, rho, of the liquid refrigerant l Is the density of the liquid refrigerant, c g Is the sound propagation velocity of the gaseous refrigerant, c l Is the sound propagation velocity of the liquid refrigerant.
5. The method of claim 4, wherein determining a correction factor for the sound propagation velocity of the compressor conduit based on the liquid refrigerant fraction and correcting the sound propagation velocity of the compressor conduit based on the correction factor comprises:
Figure FDA0003838719110000024
wherein c is seq For the corrected sound propagation velocity of the compressor line, δ is the correction factor, when
Figure FDA0003838719110000025
Figure FDA0003838719110000026
When, δ =0; when in use
Figure FDA0003838719110000027
δ =5; when the temperature is higher than the set temperature
Figure FDA0003838719110000028
δ =10; when the temperature is higher than the set temperature
Figure FDA0003838719110000029
δ =20; when in use
Figure FDA00038387191100000210
δ =50.
6. The method of claim 5, wherein determining the length of the muffler based on the modified sound propagation velocity of the compressor pipe and the maximum amplitude noise frequency comprises: based on
Figure FDA00038387191100000211
Obtaining the length of the silencer, wherein l is the length of the silencer, and f max N is a positive integer including 0, which is the frequency of the noise of the maximum amplitude.
7. A muffler parameter determining apparatus, comprising:
the parameter acquisition module is used for acquiring the temperature value and the pressure value of the refrigerant in the compressor pipeline, the proportion of the gaseous refrigerant and the proportion of the liquid refrigerant;
the parameter searching module is used for determining the density of the gaseous refrigerant, the density of the liquid refrigerant, the sound propagation speed of the gaseous refrigerant and the sound propagation speed of the liquid refrigerant based on the temperature value and the pressure value;
the speed determination module is used for determining the sound propagation speed of the compressor pipeline based on the occupation ratio of the gaseous refrigerant, the occupation ratio of the liquid refrigerant, the density of the gaseous refrigerant, the density of the liquid refrigerant, the sound propagation speed of the gaseous refrigerant and the sound propagation speed of the liquid refrigerant;
the speed correction module is used for determining a correction factor of the sound propagation speed of the compressor pipeline based on the proportion of the liquid refrigerant and correcting the sound propagation speed of the compressor pipeline based on the correction factor; and
and the length determining module is used for determining the length of the silencer based on the corrected sound propagation speed of the compressor pipeline and the noise frequency with the maximum amplitude.
8. An apparatus, comprising: a memory and a processor;
the memory is used for storing programs;
the processor, executing the program, implements the steps of the muffler parameter determining method according to any one of claims 1 to 6.
9. A storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, carries out the steps of the muffler parameter determination method as claimed in any one of claims 1 to 6.
10. A muffler parameter determination system comprising the apparatus of claim 8, further comprising: and the communication module is used for sending the length of the silencer to a user terminal.
CN202211096039.9A 2022-09-08 2022-09-08 Muffler parameter determination method, device, equipment, storage medium and system Pending CN115435492A (en)

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JP4904970B2 (en) * 2006-08-01 2012-03-28 ダイキン工業株式会社 Refrigeration equipment
JP2011012869A (en) * 2009-07-01 2011-01-20 Panasonic Corp Air conditioner
CN203595247U (en) * 2013-09-24 2014-05-14 Tcl空调器(中山)有限公司 Silencer and inverter air conditioner
CN110116601B (en) * 2018-02-06 2022-04-05 上海汽车集团股份有限公司 Air conditioner pipeline silencer
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WO2024051179A1 (en) * 2022-09-08 2024-03-14 青岛海尔空调器有限总公司 Muffler parameter determination method and apparatus, device, storage medium, and system

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