WO2021072954A1 - Compressor lubrication adjusting method and device, electronic equipment, and storage medium - Google Patents

Compressor lubrication adjusting method and device, electronic equipment, and storage medium Download PDF

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Publication number
WO2021072954A1
WO2021072954A1 PCT/CN2019/124782 CN2019124782W WO2021072954A1 WO 2021072954 A1 WO2021072954 A1 WO 2021072954A1 CN 2019124782 W CN2019124782 W CN 2019124782W WO 2021072954 A1 WO2021072954 A1 WO 2021072954A1
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WIPO (PCT)
Prior art keywords
compressor
suction pressure
frequency
real
value
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PCT/CN2019/124782
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French (fr)
Chinese (zh)
Inventor
刘志力
雷朋飞
吴思朗
叶景发
李操炫
Original Assignee
广东芬尼克兹节能设备有限公司
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Publication of WO2021072954A1 publication Critical patent/WO2021072954A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/24—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • 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
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/31—Expansion valves
    • 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
    • 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]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the embodiments of the present application relate to the technical field of compressors, and in particular, to a lubrication adjustment method, device, electronic equipment, and storage medium of a compressor.
  • the ambient temperature range used by heat pumps has become wider and wider.
  • the stable operation temperature range of the compressor has been extended to below low temperature -35°C, making the heat pump suitable for use in a wider range of ambient temperatures.
  • the suction pressure of the compressor when it operates in an ultra-low temperature environment, the suction pressure of the compressor is relatively small, and the refrigerant flow rate is relatively low. In the case of frosting, the suction pressure of the compressor will be smaller, and the refrigerant flow will be further reduced.
  • the refrigerant flow rate is small, enough lubricating oil cannot be brought back to the compressor, resulting in poor lubrication of the compressor, resulting in heat pump failure, and affecting user experience.
  • the embodiments of the present application provide a compressor lubrication adjustment method, device, electronic equipment, and storage medium, which can solve the problem of low refrigerant flow when the compressor is running at an ultra-low temperature, and realize the operation control of the compressor suction pressure.
  • an embodiment of the present application provides a method for adjusting lubrication of a compressor, including:
  • suction pressure threshold is the minimum suction pressure allowed for the safe operation of the compressor
  • the compressor frequency is adjusted by the corresponding frequency adjustment method according to the current frequency adjustment stage of the compressor, and the compressor electronic expansion valve is adjusted to increase The real-time inspiratory pressure value.
  • a corresponding frequency adjustment method is adopted to adjust the compressor frequency according to the current frequency adjustment stage of the compressor, and the compressor electronic expansion valve is adjusted ,include:
  • the compressor When the compressor is in the up-frequency phase, if the real-time suction pressure value is less than or equal to the sum of the suction pressure threshold and the first preset positive deviation value, the compressor is controlled to stop the up-frequency and adjust according to the degree of superheat Electronic expansion valve.
  • a corresponding frequency adjustment method is adopted to adjust the compressor frequency according to the current frequency adjustment stage of the compressor, and the compressor electronic expansion valve is adjusted ,Also includes:
  • the compressor When the compressor is in the stable frequency stage, if the real-time suction pressure value is less than the difference between the suction pressure threshold and the first preset negative deviation value, the compressor is controlled to perform frequency reduction at a first preset rate.
  • a corresponding frequency adjustment method is adopted to adjust the compressor frequency according to the current frequency adjustment stage of the compressor, and the compressor electronic expansion valve is adjusted ,Also includes:
  • the compressor When the compressor is in the stable frequency phase or the frequency reduction phase, if the real-time suction pressure value is less than the difference between the suction pressure threshold and the second preset negative deviation value, the compressor is controlled to perform at the second preset rate Down frequency.
  • a corresponding frequency adjustment method is adopted to adjust the compressor frequency according to the current frequency adjustment stage of the compressor, and the compressor electronic expansion valve is adjusted ,Also includes:
  • the compressor When the compressor is in the stable frequency phase or the frequency reduction phase, if the real-time suction pressure value is less than the difference between the suction pressure threshold and the third preset negative deviation value, the compressor is controlled to perform at the third preset rate Down frequency.
  • a corresponding frequency adjustment method is adopted to adjust the compressor frequency according to the current frequency adjustment stage of the compressor, and the compressor electronic expansion valve is adjusted ,Also includes:
  • the difference between the current compressor discharge temperature and the condensing temperature corresponding to the compressor discharge pressure is detected.
  • the corresponding frequency modulation stage controls the electronic expansion valve to open at the corresponding rate and pace until If the real-time suction pressure value is greater than the sum of the suction pressure threshold value and the first preset positive deviation value, the frequency reduction and valve opening are stopped.
  • an embodiment of the present application provides a lubrication adjustment device for a compressor, including:
  • a setting module configured to preset a suction pressure threshold of the compressor, where the suction pressure threshold is the minimum suction pressure allowed for safe operation of the compressor;
  • the comparison module is configured to detect the real-time suction pressure value of the compressor after the compressor is started, and compare the detected real-time suction pressure value with the suction pressure threshold;
  • the adjustment module is configured to, when the real-time suction pressure value is less than or equal to the suction pressure threshold, adjust the compressor frequency by adopting a corresponding frequency adjustment method according to the current frequency adjustment stage of the compressor, and adjust the compressor Electronic expansion valve to increase the real-time suction pressure value.
  • an electronic device including:
  • Memory and one or more processors
  • the memory is configured to store one or more programs
  • the one or more processors When the one or more programs are executed by the one or more processors, the one or more processors implement the lubrication adjustment method of the compressor as described in the first aspect.
  • embodiments of the present application provide a storage medium containing computer-executable instructions configured to perform the lubrication of the compressor as described in the first aspect when executed by a computer processor. Adjustment method.
  • the real-time suction pressure of the compressor is detected, and when the real-time suction pressure is less than or equal to the suction pressure threshold, according to the compressor
  • the current frequency adjustment stage adopts the corresponding frequency adjustment method to adjust the compressor frequency and adjust the compressor electronic expansion valve.
  • the real-time suction pressure value of the compressor can be increased.
  • the increase in the real-time suction pressure of the compressor can increase the refrigerant flow rate of the compressor, so that the refrigerant can bring back enough lubricating oil to avoid the compressor due to poor lubrication. There is a breakdown or even burned out.
  • FIG. 1 is a flowchart of a method for adjusting lubrication of a compressor according to Embodiment 1 of the present application;
  • FIG. 2 is a flowchart of another compressor lubrication adjustment method provided in the second embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a lubrication adjusting device for a compressor according to a third embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of an electronic device according to Embodiment 4 of the present application.
  • the compressor lubrication adjustment method provided in this application aims to increase the suction pressure of the compressor by adjusting the suction pressure of the compressor, and increase the flow of refrigerant entering the compressor by increasing the suction pressure of the compressor.
  • the existing compressor in the operation process because there is no better lubrication adjustment, in the case of compressor suction pressure is too low, it will lead to poor oil supply inside the compressor or the suction cannot return oil, and then Causes poor lubrication of the compressor.
  • the lubrication adjustment method of the compressor of the embodiment of the present application is provided to solve the technical problem of poor lubrication caused by the low suction pressure of the existing compressor.
  • Figure 1 shows a flow chart of a compressor lubrication adjustment method provided in the first embodiment of the present application.
  • the compressor lubrication adjustment method provided in this embodiment can be executed by a compressor lubrication adjustment device.
  • the lubrication adjustment device may be implemented by software and/or hardware.
  • the lubrication adjustment device of the compressor may be composed of two or more physical entities, or may be composed of one physical entity. Generally speaking, the lubrication adjustment device of the compressor can be the main control device of the compressor.
  • the lubrication adjustment device of the compressor is an example of the device that executes the lubrication adjustment method of the compressor.
  • the lubrication adjustment method of the compressor specifically includes:
  • suction pressure threshold is a minimum suction pressure allowed for safe operation of the compressor.
  • the suction pressure threshold of the compressor is the minimum suction pressure value allowed for the safe operation of the compressor, and this minimum suction pressure threshold is determined according to the compressor operation safety experiment.
  • a boundary value of suction pressure for normal compressor internal lubrication is determined by actual experimental data, that is, the minimum suction pressure value, and this minimum suction pressure value is used as the suction pressure threshold of the compressor.
  • S120 After the compressor is started, detect the real-time suction pressure value of the compressor, and compare the detected real-time suction pressure value with the suction pressure threshold.
  • the compressor's lubrication adjustment device will detect the compressor's real-time suction pressure value in real time based on this suction pressure threshold, and will detect the real-time suction pressure value of the compressor in real time.
  • the suction pressure value is compared with the suction pressure threshold value to determine whether the real-time pressure value of the compressor is less than the suction pressure threshold value of the compressor.
  • the suction pressure of the compressor may be collected according to an air pressure sensor provided at the air inlet of the compressor. There are many ways to collect the suction pressure of the compressor, and the embodiment of the present application does not make a fixed limitation.
  • the embodiment of the application considers the influence of the suction pressure threshold deviation, and adjusts at different frequencies. Set different deviation values in the stage, and compare the real-time suction pressure of the compressor with the sum of the compressor suction pressure threshold and the corresponding deviation value during the comparison, so as to make the real-time discharge pressure comparison more accurate. Avoid deviations from affecting the compressor suction pressure adjustment.
  • the real-time suction pressure value of the compressor when comparing the real-time suction pressure value of the compressor with the suction pressure threshold value, if the real-time suction pressure value of the compressor is greater than the suction pressure threshold value, it indicates that the current suction pressure of the compressor is normal and the internal lubrication of the compressor is normal. If the compressor's real-time suction pressure value is less than or equal to the suction pressure threshold, it indicates that the current compressor suction pressure is too small, and it is easy to cause poor lubrication due to low refrigerant flow, and compressor suction pressure adjustment is required.
  • the corresponding frequency adjustment method is adopted to adjust the compressor frequency according to the current frequency adjustment stage of the compressor, and the compressor electronic expansion valve is adjusted.
  • the suction pressure of the compressor can be adjusted by adjusting the operating frequency of the compressor.
  • the opening of the compressor's electronic expansion valve the compressor suction pressure can also be adjusted. Specifically, by reducing the operating frequency of the compressor, or opening the electronic expansion valve of the compressor to increase the real-time suction pressure of the compressor, the lubrication adjustment inside the compressor is realized.
  • the compressor when the compressor is in the up-frequency phase, if the real-time suction pressure value is less than or equal to the sum of the suction pressure threshold and the first preset positive deviation value, the compressor is controlled to stop the up-frequency and adjust according to the degree of superheat Electronic expansion valve.
  • the compressor When the compressor is in the stable frequency stage, if the real-time suction pressure value is less than the difference between the suction pressure threshold and the first preset negative deviation value, the compressor is controlled to perform frequency reduction at the first preset rate.
  • the compressor is in the stable frequency phase or the frequency reduction phase, if the real-time suction pressure value is less than the difference between the suction pressure threshold and the second preset negative deviation value, the compressor is controlled to perform frequency reduction at the second preset rate.
  • the compressor When the compressor is in the stable frequency phase or the frequency reduction phase, if the real-time suction pressure value is less than the difference between the suction pressure threshold and the third preset negative deviation value, the compressor is controlled to perform frequency reduction at the third preset rate. And in each frequency adjustment stage, the compressor electronic expansion valve is adjusted at the same time. By detecting the difference between the current compressor discharge temperature and the condensing temperature corresponding to the compressor discharge pressure, when the difference is greater than or equal to the preset threshold, the electronic expansion valve corresponding to each frequency adjustment stage is controlled to open at the corresponding speed and pace , Until the real-time suction pressure value is greater than the sum of the suction pressure threshold and the first preset positive deviation value, stop frequency reduction and valve opening.
  • the machine suction pressure threshold P smin is 1. Adjusting the frequency corresponding to the different stages in the compressor when the upsampling stage, detected P s ⁇ P smin + a, i.e., P s is less than 1.1, when the compressor is stopped upscaling, and controls the electronic expansion valve is adjusted according to the degree of superheat, By adjusting the opening degree of the electronic expansion valve, the superheat of the compressor reaches the preset value. In this way, the compressor suction pressure is adjusted.
  • the compressor When the compressor is in the stable frequency stage, it is detected that P smin -c ⁇ P s ⁇ P smin -b, that is, P s is less than 0.9 and greater than 0.8, and at this time, the compressor is controlled to perform frequency reduction at the first preset rate S1. It also detects the difference between the current compressor discharge temperature and the condensing temperature corresponding to the compressor discharge pressure. When the difference is greater than or equal to Td (preset threshold), the electronic expansion valve is controlled to open at a rate E_S1 and a step E_N1. And real-time detection of compressor suction pressure, until P s is greater than 1.1, stop frequency reduction and valve opening.
  • the threshold corresponding to the difference between the compressor discharge temperature and the compressor discharge pressure corresponding to the condensing temperature is set according to the temperature difference threshold to avoid liquid back after the compressor electronic expansion valve is opened.
  • This threshold is set by setting this threshold , To avoid the risk of liquid return during the adjustment process of the electronic expansion valve.
  • the electronic expansion valve of the compressor adopts different speed and pace adjustments according to different frequency adjustment stages when adjusting the opening degree. It is to minimize the system pressure fluctuation during the compressor adjustment process and avoid abnormal use of the compressor due to excessive pressure fluctuation.
  • the opening rate and pace of the electronic expansion valve are measured according to actual experiments. By adjusting the compressor's electronic expansion valve in different frequency adjustment stages, the most suitable rate and pace are measured as the subsequent corresponding frequency adjustment stage for compressor electronic expansion. The preset rate and opening step when the valve opening is adjusted.
  • the corresponding adjustment method is adopted to adjust the suction pressure, so that the real-time suction pressure of the compressor is greater than the sum of the compressor suction pressure threshold and the first preset positive deviation value, then The current suction pressure is sufficient for the refrigerant to bring back enough lubricating oil.
  • the compressor is The frequency adjustment stage adopts the corresponding frequency adjustment method to adjust the compressor frequency and adjust the compressor electronic expansion valve.
  • the real-time suction pressure value of the compressor can be increased.
  • the increase in the real-time suction pressure of the compressor can increase the refrigerant flow rate of the compressor, so that the refrigerant can bring back enough lubricating oil to avoid the compressor due to poor lubrication. There is a breakdown or even burned out.
  • FIG. 2 is a flowchart of another compressor lubrication adjustment method provided in the second embodiment of the application.
  • the lubrication adjustment method of the compressor provided in this embodiment specifically includes:
  • S210 Pre-setting the suction pressure threshold of the compressor, where the suction pressure threshold is the minimum suction pressure allowed for safe operation of the compressor;
  • S220 After the compressor is started, detect the real-time suction pressure value of the compressor, and compare the detected real-time suction pressure value with the suction pressure threshold;
  • the suction pressure of the compressor is detected in real time, and the real-time suction pressure value is compared with the suction pressure threshold again. If it is found within the set time, no matter how it is adjusted If it fails to increase the suction pressure value of the compressor, it is determined that the compressor suction pressure adjustment control is abnormal, and an abnormality prompt is output. In order to notify relevant personnel to overhaul the equipment to avoid further damage to the equipment.
  • the above scheme determines whether the compressor suction pressure adjustment control is effective by judging whether the compressor suction pressure adjustment makes the real-time suction pressure value greater than the suction pressure threshold. If it is invalid, the output suction pressure Indication of abnormal air pressure adjustment and control, promptly remind relevant personnel to repair, avoid further damage to the compressor, ensure the safe operation of the equipment, and further optimize the user experience.
  • FIG. 3 is a schematic structural diagram of a lubrication adjusting device for a compressor provided in the third embodiment of the application.
  • the lubrication adjusting device for the compressor provided in this embodiment specifically includes: a setting module, a comparison module, and an adjusting module.
  • the setting module 31 is configured to pre-set the suction pressure threshold of the compressor, where the suction pressure threshold is the minimum suction pressure allowed for the safe operation of the compressor;
  • the comparison module 32 is configured to detect the real-time suction pressure value of the compressor after the compressor is started, and compare the detected real-time suction pressure value with the suction pressure threshold;
  • the adjustment module 33 is configured to, when the real-time suction pressure value is less than or equal to the suction pressure threshold, adjust the compressor frequency by adopting a corresponding frequency adjustment method according to the current frequency adjustment stage of the compressor, and adjust the compressor Electronic expansion valve to increase the real-time suction pressure value.
  • the compressor is The frequency adjustment stage adopts the corresponding frequency adjustment method to adjust the compressor frequency and adjust the compressor electronic expansion valve.
  • the real-time suction pressure value of the compressor can be increased.
  • the increase in the real-time suction pressure of the compressor can increase the refrigerant flow rate of the compressor, so that the refrigerant can bring back enough lubricating oil to avoid the compressor due to poor lubrication. There is a breakdown or even burned out.
  • the adjustment module includes a first adjustment unit configured to, when the compressor is in an up-frequency phase, if the real-time suction pressure value is less than or equal to the suction pressure threshold value and a first preset positive deviation value Sum, the compressor is controlled to stop the frequency increase, and the electronic expansion valve is adjusted according to the degree of superheat.
  • the second adjusting unit is configured to control the compressor to press the first preset negative deviation value if the real-time suction pressure value is less than the difference between the suction pressure threshold value and the first preset negative deviation value when the compressor is in the stable frequency stage. Preset rate for frequency reduction.
  • the third adjustment unit is configured to control the compression if the real-time suction pressure value is less than the difference between the suction pressure threshold value and the second preset negative deviation value when the compressor is in the stable frequency stage or the frequency reduction stage The machine performs frequency reduction at the second preset rate.
  • the fourth adjusting unit is configured to control the compression if the real-time suction pressure value is less than the difference between the suction pressure threshold value and the third preset negative deviation value when the compressor is in the stable frequency stage or the frequency reduction stage The machine performs frequency reduction at the third preset rate.
  • the fifth adjustment unit is configured to detect the difference between the current compressor discharge temperature and the condensing temperature corresponding to the compressor discharge pressure, and when the difference is greater than or equal to a preset threshold, the electronic expansion valve corresponding to the frequency modulation stage is controlled to press The corresponding speed and pace are increased until the real-time inhalation pressure value is greater than the sum of the inhalation pressure threshold value and the first preset positive deviation value, stop frequency reduction and valve opening.
  • a prompt module configured to determine that the control is abnormal and output an abnormal prompt if the real-time inhalation pressure value is still less than or equal to the inhalation pressure threshold after a set period of time.
  • the lubrication adjustment device of the compressor provided in the third embodiment of the present application can be configured to implement the lubrication adjustment methods of the compressor provided in the first and second embodiments above, and has corresponding functions and beneficial effects.
  • the fourth embodiment of the present application provides an electronic device.
  • the electronic device includes: a processor 41, a memory 42, a communication module 43, an input device 44 and an output device 45.
  • the number of processors in the electronic device may be one or more, and the number of memories in the electronic device may be one or more.
  • the processor 41, the memory 42, the communication module 43, the input device 44, and the output device 45 of the electronic device may be connected by a bus or other methods.
  • the memory 42 can be configured to store software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the compressor lubrication adjustment method described in any embodiment of the present application (for example, The setting module, the comparison module and the adjustment module in the lubrication adjustment device of the compressor).
  • the memory may mainly include a program storage area and a data storage area.
  • the program storage area may store an operating system and an application program required by at least one function; the data storage area may store data created according to the use of the device.
  • the memory may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices.
  • the memory may further include a memory remotely provided with respect to the processor, and these remote memories may be connected to the device through a network. Examples of the aforementioned networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.
  • the communication module 43 is configured to perform data transmission.
  • the processor 41 executes various functional applications and data processing of the equipment by running software programs, instructions, and modules stored in the memory, that is, realizes the above-mentioned compressor lubrication adjustment method.
  • the input device 44 may be configured to receive input numeric or character information, and generate key signal input related to user settings and function control of the device.
  • the output device 45 may include a display device such as a display screen.
  • the electronic device provided above can be configured to execute the lubrication adjustment method of the compressor provided in the first and second embodiments above, and has corresponding functions and beneficial effects.
  • An embodiment of the present application also provides a storage medium containing computer-executable instructions configured to execute a compressor lubrication adjustment method when executed by a computer processor, and the compressor lubrication adjustment method Including: pre-setting the suction pressure threshold of the compressor, the suction pressure threshold is the minimum suction pressure value allowed by the safe operation of the compressor; after the compressor is started, the real-time suction pressure value of the compressor is detected, and the The detected real-time suction pressure value is compared with the suction pressure threshold; when the real-time suction pressure value is less than or equal to the suction pressure threshold, it is used according to the current frequency modulation stage of the compressor The corresponding frequency adjustment method adjusts the compressor frequency and adjusts the compressor electronic expansion valve to increase the real-time suction pressure value.
  • Storage medium any of various types of storage devices or storage devices.
  • the term "storage medium” is intended to include: installation media, such as CD-ROM, floppy disk or tape device; computer system memory or random access memory, such as DRAM, DDR RAM, SRAM, EDO RAM or Rambus RAM, etc. ; Non-volatile memory, such as flash memory or magnetic media (such as hard disk or optical storage); registers or other similar types of memory elements.
  • the storage medium may further include other types of memory or a combination thereof.
  • the storage medium may be located in the first computer system in which the program is executed, or may be located in a different second computer system connected to the first computer system through a network (such as the Internet).
  • the second computer system can provide the program instructions to the first computer for execution.
  • the term “storage medium” may include two or more storage media residing in different locations (for example, in different computer systems connected through a network).
  • the storage medium may store program instructions (for example, embodied as a computer program) executable by one or
  • the storage medium containing computer-executable instructions provided by the embodiments of the present application is not limited to the compressor lubrication adjustment method described above, and can also execute the compression provided by any embodiment of the present application. Related operations in the lubrication adjustment method of the machine.
  • the compressor lubrication adjustment device, storage medium, and electronic equipment provided in the above embodiments can perform the compressor lubrication adjustment method provided in any embodiment of this application.
  • the compressor lubrication adjustment method provided by any embodiment.

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Abstract

Disclosed are a compressor lubrication adjusting method and device, electronic equipment, and a storage medium. The present invention uses the following technical means: an air suction pressure threshold value of a compressor is preset; after the compressor is started, a real-time air suction pressure value of the compressor is detected; and when the real-time air suction pressure value is smaller than or equal to the air suction pressure threshold value, the frequency of the compressor is adjusted in a corresponding frequency-adjusting manner according to the current frequency-adjusting stage of the compressor, and an electronic expansion valve of the compressor is adjusted. With the technical means, a real-time air suction pressure value of a compressor can be increased, and the flow of a refrigerant for the compressor can be increased by increasing a real-time air suction pressure of the compressor, so that enough lubricating oil can be brought back by the refrigerant, and the situation where the compressor breaks down or even burns up due to poor lubrication is avoided.

Description

一种压缩机的润滑调节方法、装置、电子设备及存储介质Lubrication adjustment method, device, electronic equipment and storage medium of compressor
相关申请的交叉引用Cross-references to related applications
本申请要求于2019年10月15日提交中国专利局的申请号为CN201910980365.8、名称为“一种压缩机的润滑调节方法、装置、电子设备及存储介质”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on October 15, 2019, with the application number CN201910980365.8, titled "A method, device, electronic equipment and storage medium for compressor lubrication adjustment", The entire content is incorporated into this application by reference.
技术领域Technical field
本申请实施例涉及压缩机技术领域，尤其涉及一种压缩机的润滑调节方法、装置、电子设备及存储介质。The embodiments of the present application relate to the technical field of compressors, and in particular, to a lubrication adjustment method, device, electronic equipment, and storage medium of a compressor.
背景技术Background technique
目前，随着热泵节能技术的发展进步，使得热泵使用的环境温度范围越来越宽。特别是使用喷气增焓型压缩机搭配R410a冷媒后，压缩机能够稳定运行的温度范围已拓展到低温-35℃以下，使得热泵能够适应更大范围环境温度下的使用需求。At present, with the development and progress of heat pump energy-saving technology, the ambient temperature range used by heat pumps has become wider and wider. Especially with the use of an air jet compressor with increased enthalpy and R410a refrigerant, the stable operation temperature range of the compressor has been extended to below low temperature -35℃, making the heat pump suitable for use in a wider range of ambient temperatures.
但是，根据热泵的这一运行特点，其在超低温环境运行时，压缩机的吸气压力相对较小，冷媒流量相对较低。而进一步在结霜情况下，压缩机吸气压力会更小，冷媒流量会进一步下降。而在冷媒流量较小的情况下，则无法带回足够的润滑油给压缩机，导致压缩机润滑不良，进而导致热泵故障的问题，影响用户的使用体验。However, according to this operating characteristic of the heat pump, when it operates in an ultra-low temperature environment, the suction pressure of the compressor is relatively small, and the refrigerant flow rate is relatively low. In the case of frosting, the suction pressure of the compressor will be smaller, and the refrigerant flow will be further reduced. However, when the refrigerant flow rate is small, enough lubricating oil cannot be brought back to the compressor, resulting in poor lubrication of the compressor, resulting in heat pump failure, and affecting user experience.
发明内容Summary of the invention
本申请实施例提供一种压缩机的润滑调节方法、装置、电子设备及存储介质，能够解决压缩机超低温运行时，冷媒流量小的问题，实现对压缩机吸气压力的运行控制。The embodiments of the present application provide a compressor lubrication adjustment method, device, electronic equipment, and storage medium, which can solve the problem of low refrigerant flow when the compressor is running at an ultra-low temperature, and realize the operation control of the compressor suction pressure.
在第一方面，本申请实施例提供了一种压缩机的润滑调节方法，包括：In the first aspect, an embodiment of the present application provides a method for adjusting lubrication of a compressor, including:
预先设置压缩机的吸气压力阈值，所述吸气压力阈值为压缩机安全运行所允许的最小吸气压力值；Pre-setting the suction pressure threshold of the compressor, where the suction pressure threshold is the minimum suction pressure allowed for the safe operation of the compressor;
在压缩机启动后，检测压缩机的实时吸气压力值，并将检测到的所述实时吸气压力值与所述吸气压力阈值进行比对；After the compressor is started, detecting the real-time suction pressure value of the compressor, and comparing the detected real-time suction pressure value with the suction pressure threshold;
在所述实时吸气压力值小于或等于所述吸气压力阈值时，根据压缩机当前所处的调频阶段采用相应的频率调节方式进行压缩机频率调节，并调节压缩机电子膨胀阀，以提高所述实时吸气压力值。When the real-time suction pressure value is less than or equal to the suction pressure threshold, the compressor frequency is adjusted by the corresponding frequency adjustment method according to the current frequency adjustment stage of the compressor, and the compressor electronic expansion valve is adjusted to increase The real-time inspiratory pressure value.
进一步地，在所述实时吸气压力值小于或等于所述吸气压力阈值时，根据压缩机当前所处的调频阶段采用相应的频率调节方式进行压缩机频率调节，并调节压缩机电子膨胀阀，包括：Further, when the real-time suction pressure value is less than or equal to the suction pressure threshold value, a corresponding frequency adjustment method is adopted to adjust the compressor frequency according to the current frequency adjustment stage of the compressor, and the compressor electronic expansion valve is adjusted ,include:
在压缩机处于升频阶段时，若所述实时吸气压力值小于或等于所述吸气压力阈值与第 一预设正偏差值之和，则控制压缩机停止升频，并根据过热度调节电子膨胀阀。When the compressor is in the up-frequency phase, if the real-time suction pressure value is less than or equal to the sum of the suction pressure threshold and the first preset positive deviation value, the compressor is controlled to stop the up-frequency and adjust according to the degree of superheat Electronic expansion valve.
进一步地，在所述实时吸气压力值小于或等于所述吸气压力阈值时，根据压缩机当前所处的调频阶段采用相应的频率调节方式进行压缩机频率调节，并调节压缩机电子膨胀阀，还包括：Further, when the real-time suction pressure value is less than or equal to the suction pressure threshold value, a corresponding frequency adjustment method is adopted to adjust the compressor frequency according to the current frequency adjustment stage of the compressor, and the compressor electronic expansion valve is adjusted ,Also includes:
在压缩机处于稳定频率阶段时，若所述实时吸气压力值小于所述吸气压力阈值与第一预设负偏差值之差，则控制压缩机按第一预设速率进行降频。When the compressor is in the stable frequency stage, if the real-time suction pressure value is less than the difference between the suction pressure threshold and the first preset negative deviation value, the compressor is controlled to perform frequency reduction at a first preset rate.
进一步地，在所述实时吸气压力值小于或等于所述吸气压力阈值时，根据压缩机当前所处的调频阶段采用相应的频率调节方式进行压缩机频率调节，并调节压缩机电子膨胀阀，还包括：Further, when the real-time suction pressure value is less than or equal to the suction pressure threshold value, a corresponding frequency adjustment method is adopted to adjust the compressor frequency according to the current frequency adjustment stage of the compressor, and the compressor electronic expansion valve is adjusted ,Also includes:
在压缩机处于稳定频率阶段或降频阶段时，若所述实时吸气压力值小于所述吸气压力阈值与第二预设负偏差值之差，则控制压缩机按第二预设速率进行降频。When the compressor is in the stable frequency phase or the frequency reduction phase, if the real-time suction pressure value is less than the difference between the suction pressure threshold and the second preset negative deviation value, the compressor is controlled to perform at the second preset rate Down frequency.
进一步地，在所述实时吸气压力值小于或等于所述吸气压力阈值时，根据压缩机当前所处的调频阶段采用相应的频率调节方式进行压缩机频率调节，并调节压缩机电子膨胀阀，还包括：Further, when the real-time suction pressure value is less than or equal to the suction pressure threshold value, a corresponding frequency adjustment method is adopted to adjust the compressor frequency according to the current frequency adjustment stage of the compressor, and the compressor electronic expansion valve is adjusted ,Also includes:
在压缩机处于稳定频率阶段或降频阶段时，若所述实时吸气压力值小于所述吸气压力阈值与第三预设负偏差值之差，则控制压缩机按第三预设速率进行降频。When the compressor is in the stable frequency phase or the frequency reduction phase, if the real-time suction pressure value is less than the difference between the suction pressure threshold and the third preset negative deviation value, the compressor is controlled to perform at the third preset rate Down frequency.
进一步地，在所述实时吸气压力值小于或等于所述吸气压力阈值时，根据压缩机当前所处的调频阶段采用相应的频率调节方式进行压缩机频率调节，并调节压缩机电子膨胀阀，还包括：Further, when the real-time suction pressure value is less than or equal to the suction pressure threshold value, a corresponding frequency adjustment method is adopted to adjust the compressor frequency according to the current frequency adjustment stage of the compressor, and the compressor electronic expansion valve is adjusted ,Also includes:
检测当前压缩机排气温度和压缩机排气压力对应的冷凝温度的差值，当所述差值大于等于预设阈值时，对应调频阶段控制电子膨胀阀按相应的速率及步伐开大，直至所述实时吸气压力值大于所述吸气压力阈值与第一预设正偏差值之和，停止降频和开阀。The difference between the current compressor discharge temperature and the condensing temperature corresponding to the compressor discharge pressure is detected. When the difference is greater than or equal to the preset threshold, the corresponding frequency modulation stage controls the electronic expansion valve to open at the corresponding rate and pace until If the real-time suction pressure value is greater than the sum of the suction pressure threshold value and the first preset positive deviation value, the frequency reduction and valve opening are stopped.
进一步地，在根据压缩机当前所处的调频阶段采用相应的频率调节方式进行压缩机频率调节，并调节压缩机电子膨胀阀之后，还包括：Further, after adjusting the compressor frequency according to the current frequency adjustment stage of the compressor by adopting the corresponding frequency adjustment method, and adjusting the compressor electronic expansion valve, it further includes:
设定时间段后若所述实时吸气压力值仍小于或等于所述吸气压力阈值，则判定为控制异常，输出异常提示。If the real-time inhalation pressure value is still less than or equal to the inhalation pressure threshold value after the set time period, it is determined that the control is abnormal, and an abnormality prompt is output.
在第二方面，本申请实施例提供了一种压缩机的润滑调节装置，包括：In the second aspect, an embodiment of the present application provides a lubrication adjustment device for a compressor, including:
设置模块，被配置成预先设置压缩机的吸气压力阈值，所述吸气压力阈值为压缩机安全运行所允许的最小吸气压力值；A setting module configured to preset a suction pressure threshold of the compressor, where the suction pressure threshold is the minimum suction pressure allowed for safe operation of the compressor;
比对模块，被配置成在压缩机启动后，检测压缩机的实时吸气压力值，并将检测到的所述实时吸气压力值与所述吸气压力阈值进行比对；The comparison module is configured to detect the real-time suction pressure value of the compressor after the compressor is started, and compare the detected real-time suction pressure value with the suction pressure threshold;
调节模块，被配置成在所述实时吸气压力值小于或等于所述吸气压力阈值时，根据压 缩机当前所处的调频阶段采用相应的频率调节方式进行压缩机频率调节，并调节压缩机电子膨胀阀，以提高所述实时吸气压力值。The adjustment module is configured to, when the real-time suction pressure value is less than or equal to the suction pressure threshold, adjust the compressor frequency by adopting a corresponding frequency adjustment method according to the current frequency adjustment stage of the compressor, and adjust the compressor Electronic expansion valve to increase the real-time suction pressure value.
在第三方面，本申请实施例提供了一种电子设备，包括：In the third aspect, an embodiment of the present application provides an electronic device, including:
存储器以及一个或多个处理器；Memory and one or more processors;
所述存储器，被配置成存储一个或多个程序；The memory is configured to store one or more programs;
当所述一个或多个程序被所述一个或多个处理器执行，使得所述一个或多个处理器实现如第一方面所述的压缩机的润滑调节方法。When the one or more programs are executed by the one or more processors, the one or more processors implement the lubrication adjustment method of the compressor as described in the first aspect.
在第四方面，本申请实施例提供了一种包含计算机可执行指令的存储介质，所述计算机可执行指令被配置成在由计算机处理器执行时执行如第一方面所述的压缩机的润滑调节方法。In a fourth aspect, embodiments of the present application provide a storage medium containing computer-executable instructions configured to perform the lubrication of the compressor as described in the first aspect when executed by a computer processor. Adjustment method.
本申请实施例通过预先设置压缩机的吸气压力阈值，在压缩机启动后，检测压缩机的实时吸气压力值，并在实时吸气压力值小于或等于吸气压力阈值时，根据压缩机当前所处的调频阶段采用相应的频率调节方式进行压缩机频率调节，并调节压缩机电子膨胀阀。采用上述技术手段，可以提高压缩机的实时吸气压力值，压缩机实时吸气压力提高可使压缩机冷媒流量增大，进而使冷媒能够带回足够的润滑油，避免压缩机由于润滑不良而出现故障乃至烧毁的情况。In the embodiment of the application, by presetting the suction pressure threshold of the compressor, after the compressor is started, the real-time suction pressure of the compressor is detected, and when the real-time suction pressure is less than or equal to the suction pressure threshold, according to the compressor The current frequency adjustment stage adopts the corresponding frequency adjustment method to adjust the compressor frequency and adjust the compressor electronic expansion valve. Using the above technical means, the real-time suction pressure value of the compressor can be increased. The increase in the real-time suction pressure of the compressor can increase the refrigerant flow rate of the compressor, so that the refrigerant can bring back enough lubricating oil to avoid the compressor due to poor lubrication. There is a breakdown or even burned out.
附图说明Description of the drawings
图1是本申请实施例一提供的一种压缩机的润滑调节方法的流程图；FIG. 1 is a flowchart of a method for adjusting lubrication of a compressor according to Embodiment 1 of the present application;
图2是本申请实施例二提供的另一种压缩机的润滑调节方法的流程图；2 is a flowchart of another compressor lubrication adjustment method provided in the second embodiment of the present application;
图3是本申请实施例三提供的一种压缩机的润滑调节装置的结构示意图；FIG. 3 is a schematic structural diagram of a lubrication adjusting device for a compressor according to a third embodiment of the present application;
图4是本申请实施例四提供的一种电子设备的结构示意图。FIG. 4 is a schematic structural diagram of an electronic device according to Embodiment 4 of the present application.
具体实施方式Detailed ways
为了使本申请的目的、技术方案和优点更加清楚，下面结合附图对本申请具体实施例作进一步的详细描述。可以理解的是，此处所描述的具体实施例仅仅用于解释本申请，而非对本申请的限定。另外还需要说明的是，为了便于描述，附图中仅示出了与本申请相关的部分而非全部内容。在更加详细地讨论示例性实施例之前应当提到的是，一些示例性实施例被描述成作为流程图描绘的处理或方法。虽然流程图将各项操作(或步骤)描述成顺序的处理，但是其中的许多操作可以被并行地、并发地或者同时实施。此外，各项操作的顺序可以被重新安排。当其操作完成时所述处理可以被终止，但是还可以具有未包括在附图中的附加步骤。所述处理可以对应于方法、函数、规程、子例程或子程序等等。In order to make the objectives, technical solutions, and advantages of the present application clearer, specific embodiments of the present application will be described in further detail below in conjunction with the accompanying drawings. It can be understood that the specific embodiments described here are only used to explain the application, but not to limit the application. In addition, it should be noted that, for ease of description, the drawings only show part but not all of the content related to the present application. Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowchart describes various operations (or steps) as sequential processing, many of the operations can be implemented in parallel, concurrently, or simultaneously. In addition, the order of operations can be rearranged. The processing may be terminated when its operation is completed, but may also have additional steps not included in the drawings. The processing may correspond to methods, functions, procedures, subroutines or subroutines, and so on.
本申请提供的压缩机的润滑调节方法，旨在通过压缩机吸气压力调节以提高压缩机的吸气压力，通过提高压缩机吸气压力使进入压缩机的冷媒流量增大，由于压缩机冷媒会带 有润滑油，因此，在冷媒流量增大的情况下，会使冷媒带回足够量的润滑油，进而实现压缩机的润滑调节。参照现有压缩机在运行过程中，由于没有较好的润滑调节，在压缩机吸气压力过低的情况下，就会导致压缩机内部供油不畅或吸气无法回油的情况，进而导致压缩机润滑不良。特别是压缩机运行在超低温环境下，其吸气压力相对较低，并且在结霜的情况下，压缩机的吸气压力会进一步降低，使得压缩机在超低温环境下运行时，经常会出现压缩机润滑不良的情况。基于此，提供本申请实施例的压缩机的润滑调节方法，以解决现有压缩机吸气压力过低导致润滑不良的技术问题。The compressor lubrication adjustment method provided in this application aims to increase the suction pressure of the compressor by adjusting the suction pressure of the compressor, and increase the flow of refrigerant entering the compressor by increasing the suction pressure of the compressor. There will be lubricating oil. Therefore, when the refrigerant flow rate increases, the refrigerant will bring back enough lubricating oil to realize the lubrication adjustment of the compressor. Refer to the existing compressor in the operation process, because there is no better lubrication adjustment, in the case of compressor suction pressure is too low, it will lead to poor oil supply inside the compressor or the suction cannot return oil, and then Causes poor lubrication of the compressor. Especially when the compressor is running in an ultra-low temperature environment, its suction pressure is relatively low, and in the case of frost, the suction pressure of the compressor will be further reduced, so that when the compressor is running in an ultra-low temperature environment, compression often occurs Poor lubrication of the machine. Based on this, the lubrication adjustment method of the compressor of the embodiment of the present application is provided to solve the technical problem of poor lubrication caused by the low suction pressure of the existing compressor.
实施例一：Example one:
图1给出了本申请实施例一提供的一种压缩机的润滑调节方法的流程图，本实施例中提供的压缩机的润滑调节方法可以由压缩机的润滑调节设备执行，该压缩机的润滑调节设备可以通过软件和/或硬件的方式实现，该压缩机的润滑调节设备可以是两个或多个物理实体构成，也可以是一个物理实体构成。一般而言，该压缩机的润滑调节设备可以是压缩机主控设备。Figure 1 shows a flow chart of a compressor lubrication adjustment method provided in the first embodiment of the present application. The compressor lubrication adjustment method provided in this embodiment can be executed by a compressor lubrication adjustment device. The lubrication adjustment device may be implemented by software and/or hardware. The lubrication adjustment device of the compressor may be composed of two or more physical entities, or may be composed of one physical entity. Generally speaking, the lubrication adjustment device of the compressor can be the main control device of the compressor.
下述以压缩机的润滑调节设备为执行压缩机的润滑调节方法的设备为例，进行描述。参照图1，该压缩机的润滑调节方法具体包括：In the following description, the lubrication adjustment device of the compressor is an example of the device that executes the lubrication adjustment method of the compressor. 1, the lubrication adjustment method of the compressor specifically includes:
S110、预先设置压缩机的吸气压力阈值，所述吸气压力阈值为压缩机安全运行所允许的最小吸气压力值。S110. Pre-set a suction pressure threshold of the compressor, where the suction pressure threshold is a minimum suction pressure allowed for safe operation of the compressor.
为了实现对压缩机实时吸气压力的调节，提高压缩机的实时吸气压力。需要预先设置一个压缩机的吸气压力阈值，以提供一个比对标准。压缩机的吸气压力阈值为压缩机安全运行所允许的最小吸气压力值，这一最小吸气压力阈值根据压缩机运行安全实验确定。通过实际实验数据确定压缩机内部润滑正常的一个吸气压力边界值，即最小吸气压力值，以这一最小吸气压力值作为压缩机的吸气压力阈值。可以理解的是，当压缩机的实时吸气压力大于这一吸气压力阈值时，表明压缩机当前的吸气压力正常，冷媒能够带回足够量的润滑油；当压缩机的实时吸气压力小于这一吸气压力阈值时，则需要进行压缩机吸气压力调节，以避免压缩机出现润滑不良的情况。In order to adjust the real-time suction pressure of the compressor, increase the real-time suction pressure of the compressor. It is necessary to preset a compressor suction pressure threshold to provide a comparison standard. The suction pressure threshold of the compressor is the minimum suction pressure value allowed for the safe operation of the compressor, and this minimum suction pressure threshold is determined according to the compressor operation safety experiment. A boundary value of suction pressure for normal compressor internal lubrication is determined by actual experimental data, that is, the minimum suction pressure value, and this minimum suction pressure value is used as the suction pressure threshold of the compressor. It is understandable that when the real-time suction pressure of the compressor is greater than this suction pressure threshold, it indicates that the current suction pressure of the compressor is normal, and the refrigerant can bring back enough lubricating oil; when the real-time suction pressure of the compressor When the suction pressure is less than this threshold, the compressor suction pressure needs to be adjusted to avoid poor lubrication of the compressor.
S120、在压缩机启动后，检测压缩机的实时吸气压力值，并将检测到的所述实时吸气压力值与所述吸气压力阈值进行比对。S120: After the compressor is started, detect the real-time suction pressure value of the compressor, and compare the detected real-time suction pressure value with the suction pressure threshold.
具体地，对应预先设置的吸气压力阈值，在压缩机启动后，压缩机的润滑调节设备会基于这一吸气压力阈值，实时检测压缩机的实时吸气压力值，并将检测到的实时吸气压力值与吸气压力阈值进行比对，判断压缩机实时压力值是否小于压缩机的吸气压力阈值。需要说明的是，本申请实施例中，压缩机的吸气压力可以根据设置在压缩机进气口的气压传感器进行采集。采集压缩机吸气压力的方式有很多，本申请实施例不做固定限制。Specifically, corresponding to the preset suction pressure threshold, after the compressor is started, the compressor's lubrication adjustment device will detect the compressor's real-time suction pressure value in real time based on this suction pressure threshold, and will detect the real-time suction pressure value of the compressor in real time. The suction pressure value is compared with the suction pressure threshold value to determine whether the real-time pressure value of the compressor is less than the suction pressure threshold value of the compressor. It should be noted that, in the embodiment of the present application, the suction pressure of the compressor may be collected according to an air pressure sensor provided at the air inlet of the compressor. There are many ways to collect the suction pressure of the compressor, and the embodiment of the present application does not make a fixed limitation.
进一步地，在压缩机运行时，通过检测压缩机进气口的实时吸气压力值P s，并提取压缩机吸气压力阈值P smin，即可进行两个压力值的对比，判断当前压缩机的实时吸气压力是否过低。并且，在比对过程中，考虑到不同频率调节情况下压缩机吸气压力阈值P smin存在检测和计算上的偏差，因此，本申请实施例考虑吸气压力阈值偏差的影响，在不同频率调节阶段设置不同的偏差值，并在比对时，将压缩机实时吸气压力与压缩机吸气压力阈值和对应的偏差值之和进行比对，以使实时排气压力比对更为精确，避免偏差影响影响压缩机吸气压力调节。 Further, when the compressor is running, by detecting the real-time suction pressure value P s of the compressor inlet, and extracting the compressor suction pressure threshold P smin , the two pressure values can be compared to determine the current compressor Whether the real-time inspiratory pressure is too low. In addition, in the comparison process, considering that the compressor suction pressure threshold P smin has a deviation in detection and calculation under different frequency adjustments, therefore, the embodiment of the application considers the influence of the suction pressure threshold deviation, and adjusts at different frequencies. Set different deviation values in the stage, and compare the real-time suction pressure of the compressor with the sum of the compressor suction pressure threshold and the corresponding deviation value during the comparison, so as to make the real-time discharge pressure comparison more accurate. Avoid deviations from affecting the compressor suction pressure adjustment.
S130、在所述实时吸气压力值小于或等于所述吸气压力阈值时，根据压缩机当前所处的调频阶段采用相应的频率调节方式进行压缩机频率调节，并调节压缩机电子膨胀阀，以提高所述实时吸气压力值。S130. When the real-time suction pressure value is less than or equal to the suction pressure threshold value, use a corresponding frequency adjustment method to adjust the compressor frequency according to the current frequency adjustment stage of the compressor, and adjust the compressor electronic expansion valve, To increase the real-time inspiratory pressure value.
具体地，在比对压缩机实时吸气压力值与吸气压力阈值时，若压缩机实时吸气压力值大于吸气压力阈值，则表明当前压缩机吸气压力正常，压缩机内部润滑正常。若压缩机实时吸气压力值小于或等于吸气压力阈值，则表明当前压缩机吸气压力过小，容易出现冷媒流量小导致润滑不良的情况，需要进行压缩机吸气压力调节。则在实时吸气压力值小于或等于吸气压力阈值时，根据压缩机当前所处的调频阶段采用相应的频率调节方式进行压缩机频率调节，并调节压缩机电子膨胀阀。压缩机在运行过程中，通过压缩机运行频率调节可以调节压缩机的吸气压力。同样地，通过调整压缩机电子膨胀阀的开度，也可以进行压缩机吸气压力的调节。具体地，通过降低压缩机的运行频率，或者开大压缩机电子膨胀阀，以提高压缩机的实时吸气压力值，进而实现对压缩机内部的润滑调节。Specifically, when comparing the real-time suction pressure value of the compressor with the suction pressure threshold value, if the real-time suction pressure value of the compressor is greater than the suction pressure threshold value, it indicates that the current suction pressure of the compressor is normal and the internal lubrication of the compressor is normal. If the compressor's real-time suction pressure value is less than or equal to the suction pressure threshold, it indicates that the current compressor suction pressure is too small, and it is easy to cause poor lubrication due to low refrigerant flow, and compressor suction pressure adjustment is required. When the real-time suction pressure value is less than or equal to the suction pressure threshold value, the corresponding frequency adjustment method is adopted to adjust the compressor frequency according to the current frequency adjustment stage of the compressor, and the compressor electronic expansion valve is adjusted. During the operation of the compressor, the suction pressure of the compressor can be adjusted by adjusting the operating frequency of the compressor. Similarly, by adjusting the opening of the compressor's electronic expansion valve, the compressor suction pressure can also be adjusted. Specifically, by reducing the operating frequency of the compressor, or opening the electronic expansion valve of the compressor to increase the real-time suction pressure of the compressor, the lubrication adjustment inside the compressor is realized.
此外，当实时吸气压力值小于或等于吸气压力阈值，压缩机进行频率调节时，对应不同的调频阶段，需要使用不同的调频速率进行压缩机频率调节。采用不同的调频速率一方面是为了压缩机通过频率调节能够尽快提高压缩机的实时吸气压力，另一方面则是确保在频率调节时，使压缩机频率的波动相对平稳，不会出现较为夸张的频率波动，避免由于频率波动过大而影响压缩机的运行。In addition, when the real-time suction pressure value is less than or equal to the suction pressure threshold, when the compressor performs frequency adjustment, corresponding to different frequency adjustment stages, different frequency adjustment rates need to be used for compressor frequency adjustment. The use of different frequency adjustment rates is to improve the compressor's real-time suction pressure as soon as possible through frequency adjustment, and on the other hand, to ensure that the frequency of the compressor fluctuates relatively smoothly and will not be exaggerated. The frequency fluctuation is avoided to affect the operation of the compressor due to excessive frequency fluctuation.
示例性地，在压缩机处于升频阶段时，若实时吸气压力值小于或等于吸气压力阈值与第一预设正偏差值之和，则控制压缩机停止升频，并根据过热度调节电子膨胀阀。在压缩机处于稳定频率阶段时，若实时吸气压力值小于吸气压力阈值与第一预设负偏差值之差，则控制压缩机按第一预设速率进行降频。在压缩机处于稳定频率阶段或降频阶段时，若实时吸气压力值小于吸气压力阈值与第二预设负偏差值之差，则控制压缩机按第二预设速率进行降频。在压缩机处于稳定频率阶段或降频阶段时，若实时吸气压力值小于吸气压力阈值与第三预设负偏差值之差，则控制压缩机按第三预设速率进行降频。并且在各个调频阶段，同时进行压缩机电子膨胀阀的调节。通过检测当前压缩机排气温度和压缩机排气压力 对应的冷凝温度的差值，当这一差值大于等于预设阈值时，对应各个调频阶段控制电子膨胀阀按相应的速率及步伐开大，直至实时吸气压力值大于吸气压力阈值与第一预设正偏差值之和，停止降频和开阀。Exemplarily, when the compressor is in the up-frequency phase, if the real-time suction pressure value is less than or equal to the sum of the suction pressure threshold and the first preset positive deviation value, the compressor is controlled to stop the up-frequency and adjust according to the degree of superheat Electronic expansion valve. When the compressor is in the stable frequency stage, if the real-time suction pressure value is less than the difference between the suction pressure threshold and the first preset negative deviation value, the compressor is controlled to perform frequency reduction at the first preset rate. When the compressor is in the stable frequency phase or the frequency reduction phase, if the real-time suction pressure value is less than the difference between the suction pressure threshold and the second preset negative deviation value, the compressor is controlled to perform frequency reduction at the second preset rate. When the compressor is in the stable frequency phase or the frequency reduction phase, if the real-time suction pressure value is less than the difference between the suction pressure threshold and the third preset negative deviation value, the compressor is controlled to perform frequency reduction at the third preset rate. And in each frequency adjustment stage, the compressor electronic expansion valve is adjusted at the same time. By detecting the difference between the current compressor discharge temperature and the condensing temperature corresponding to the compressor discharge pressure, when the difference is greater than or equal to the preset threshold, the electronic expansion valve corresponding to each frequency adjustment stage is controlled to open at the corresponding speed and pace , Until the real-time suction pressure value is greater than the sum of the suction pressure threshold and the first preset positive deviation value, stop frequency reduction and valve opening.
举例而言，假设第一预设正偏差值a＝0.1，第一预设负偏差值b＝0.1，第二预设负偏差值c＝0.2，第三预设负偏差值d＝0.3，压缩机吸气压力阈值P smin为1。则对应不同频率调节阶段，在压缩机在升频阶段时，检测到P s≤P smin+a，即P s小于1.1，此时压缩机停止升频，并且控制电子膨胀阀根据过热度调节，通过调节电子膨胀阀的开度以使压缩机的过热度达到预设置的值。以此来进行压缩机吸气压力的调节。 For example, suppose that the first preset positive deviation value a=0.1, the first preset negative deviation value b=0.1, the second preset negative deviation value c=0.2, and the third preset negative deviation value d=0.3, compress The machine suction pressure threshold P smin is 1. Adjusting the frequency corresponding to the different stages in the compressor when the upsampling stage, detected P s ≤P smin + a, i.e., P s is less than 1.1, when the compressor is stopped upscaling, and controls the electronic expansion valve is adjusted according to the degree of superheat, By adjusting the opening degree of the electronic expansion valve, the superheat of the compressor reaches the preset value. In this way, the compressor suction pressure is adjusted.
在压缩机处于稳定频率阶段时，检测到P smin-c≤P s＜P smin-b，即P s小于0.9，大于0.8，此时控制压缩机按第一预设速率S1进行降频。并且检测当前压缩机排气温度和压缩机排气压力对应的冷凝温度的差值，当差值≥Td(预设阈值)时，控制电子膨胀阀按速率E_S1，步伐E_N1开大。并实时检测压缩机的吸气压力，直到P s大于1.1，停止降频和开阀。压缩机排气温度和压缩机排气压力对应的冷凝温度的差值所对应的阈值，根据压缩机电子膨胀阀开大后，避免出现回液情况的温度差阈值进行设定通过设置这一阈值，避免在电子膨胀阀调节过程中，出现回液风险。 When the compressor is in the stable frequency stage, it is detected that P smin -c≤P s <P smin -b, that is, P s is less than 0.9 and greater than 0.8, and at this time, the compressor is controlled to perform frequency reduction at the first preset rate S1. It also detects the difference between the current compressor discharge temperature and the condensing temperature corresponding to the compressor discharge pressure. When the difference is greater than or equal to Td (preset threshold), the electronic expansion valve is controlled to open at a rate E_S1 and a step E_N1. And real-time detection of compressor suction pressure, until P s is greater than 1.1, stop frequency reduction and valve opening. The threshold corresponding to the difference between the compressor discharge temperature and the compressor discharge pressure corresponding to the condensing temperature is set according to the temperature difference threshold to avoid liquid back after the compressor electronic expansion valve is opened. This threshold is set by setting this threshold , To avoid the risk of liquid return during the adjustment process of the electronic expansion valve.
在压缩机处于稳定频率或降频阶段时，检测到P smin-d≤P s＜P smin-c，即P s小于0.8，大于0.7，此时控制压缩机按第二预设速率S2进行降频。并且检测当前压缩机排气温度和压缩机排气压力对应的冷凝温度的差值，当差值≥T d(预设阈值)时，控制电子膨胀阀按速率E_S2，步伐E_N2开大。直到P s大于1.1时，停止降频和开阀节。 When the compressor is in a stable frequency or frequency reduction phase, it is detected that P smin -d≤P s <P smin -c, that is, P s is less than 0.8 and greater than 0.7, and the compressor is controlled to decrease at the second preset rate S2. frequency. And detect the difference between the current compressor discharge temperature and the condensing temperature corresponding to the compressor discharge pressure. When the difference is ≥ T d (preset threshold), the electronic expansion valve is controlled to open at a rate E_S2 and a step E_N2. Until P s is greater than 1.1, stop frequency reduction and open valve section.
在压缩机处于稳定频率或降频阶段时，检测到P s＜P smin-d，即P s小于0.7，此时控制压缩机按第三预设速率S3进行降频。并且检测当前压缩机排气温度和压缩机排气压力对应的冷凝温度的差值，当差值≥Td(预设阈值)时，控制电子膨胀阀按速率E_S3，步伐E_N3开大。直到P s大于1.1时，停止降频和开阀。 When the compressor is in a stable frequency or frequency reduction phase, it is detected that P s <P smin -d, that is, P s is less than 0.7, and the compressor is controlled to perform frequency reduction at the third preset rate S3 at this time. It also detects the difference between the current compressor discharge temperature and the condensing temperature corresponding to the compressor discharge pressure. When the difference is greater than or equal to Td (preset threshold), the electronic expansion valve is controlled to open at a rate E_S3 and a step E_N3. Until P s is greater than 1.1, stop frequency reduction and valve opening.
需要说明的是，压缩机的电子膨胀阀在进行开度调节时，根据不同的调频阶段采用不同的速率及步伐调节。是为了使压缩机在调节过程中***压力波动最小，避免由于压力波动过大而导致压缩机使用异常。其中，电子膨胀阀的打开速率及步伐根据实际实验测得，通过在不同调频阶段进行压缩机电子膨胀阀的调节，测得一个最适合的速率及步伐，作为后续对应调频阶段进行压缩机电子膨胀阀开度调节时的预设速率及开大步伐。It should be noted that the electronic expansion valve of the compressor adopts different speed and pace adjustments according to different frequency adjustment stages when adjusting the opening degree. It is to minimize the system pressure fluctuation during the compressor adjustment process and avoid abnormal use of the compressor due to excessive pressure fluctuation. Among them, the opening rate and pace of the electronic expansion valve are measured according to actual experiments. By adjusting the compressor's electronic expansion valve in different frequency adjustment stages, the most suitable rate and pace are measured as the subsequent corresponding frequency adjustment stage for compressor electronic expansion. The preset rate and opening step when the valve opening is adjusted.
最终，通过压缩机吸气压力处于不同的阶段，采用对应的调节方式进行吸气压力调节，使得压缩机实时吸气压力大于压缩机吸气压力阈值与第一预设正偏差值之和，则当前吸气压力能够满足冷媒带回足够的润滑油。Finally, through the compressor suction pressure at different stages, the corresponding adjustment method is adopted to adjust the suction pressure, so that the real-time suction pressure of the compressor is greater than the sum of the compressor suction pressure threshold and the first preset positive deviation value, then The current suction pressure is sufficient for the refrigerant to bring back enough lubricating oil.
上述，通过预先设置压缩机的吸气压力阈值，在压缩机启动后，检测压缩机的实时吸 气压力值，并在实时吸气压力值小于或等于吸气压力阈值时，根据压缩机当前所处的调频阶段采用相应的频率调节方式进行压缩机频率调节，并调节压缩机电子膨胀阀。采用上述技术手段，可以提高压缩机的实时吸气压力值，压缩机实时吸气压力提高可使压缩机冷媒流量增大，进而使冷媒能够带回足够的润滑油，避免压缩机由于润滑不良而出现故障乃至烧毁的情况。As mentioned above, by pre-setting the suction pressure threshold of the compressor, after the compressor is started, the real-time suction pressure of the compressor is detected, and when the real-time suction pressure is less than or equal to the suction pressure threshold, the compressor is The frequency adjustment stage adopts the corresponding frequency adjustment method to adjust the compressor frequency and adjust the compressor electronic expansion valve. Using the above technical means, the real-time suction pressure value of the compressor can be increased. The increase in the real-time suction pressure of the compressor can increase the refrigerant flow rate of the compressor, so that the refrigerant can bring back enough lubricating oil to avoid the compressor due to poor lubrication. There is a breakdown or even burned out.
实施例二：Embodiment two:
在上述实施例的基础上，图2为本申请实施例二提供的另一种压缩机的润滑调节方法的流程图。参考图2，本实施例提供的压缩机的润滑调节方法具体包括：On the basis of the foregoing embodiment, FIG. 2 is a flowchart of another compressor lubrication adjustment method provided in the second embodiment of the application. Referring to FIG. 2, the lubrication adjustment method of the compressor provided in this embodiment specifically includes:
S210、预先设置压缩机的吸气压力阈值，所述吸气压力阈值为压缩机安全运行所允许的最小吸气压力值；S210: Pre-setting the suction pressure threshold of the compressor, where the suction pressure threshold is the minimum suction pressure allowed for safe operation of the compressor;
S220、在压缩机启动后，检测压缩机的实时吸气压力值，并将检测到的所述实时吸气压力值与所述吸气压力阈值进行比对；S220: After the compressor is started, detect the real-time suction pressure value of the compressor, and compare the detected real-time suction pressure value with the suction pressure threshold;
S230、在所述实时吸气压力值小于或等于所述吸气压力阈值时，根据压缩机当前所处的调频阶段采用相应的频率调节方式进行压缩机频率调节，并调节压缩机电子膨胀阀，以提高所述实时吸气压力值；S230. When the real-time suction pressure value is less than or equal to the suction pressure threshold value, use a corresponding frequency adjustment method to adjust the compressor frequency according to the current frequency adjustment stage of the compressor, and adjust the compressor electronic expansion valve, To increase the real-time inhalation pressure value;
S240、设定时间段后若所述实时吸气压力值仍小于或等于所述吸气压力阈值，则判定为控制异常，输出异常提示。S240. If the real-time inhalation pressure value is still less than or equal to the inhalation pressure threshold value after the set time period, it is determined that the control is abnormal, and an abnormality prompt is output.
本申请实施例在压缩机进行吸气压力调节之后，实时检测压缩机的吸气压力，通过实时吸气压力值与吸气压力阈值进行再次比对，若发现设定时间内，无论怎么进行调节都无法提高压缩机的吸气压力值，则判定为压缩机吸气压力调节控制异常，输出异常提示。以通知相关人员进行设备检修，避免设备进一步损坏。In the embodiment of the application, after the compressor performs suction pressure adjustment, the suction pressure of the compressor is detected in real time, and the real-time suction pressure value is compared with the suction pressure threshold again. If it is found within the set time, no matter how it is adjusted If it fails to increase the suction pressure value of the compressor, it is determined that the compressor suction pressure adjustment control is abnormal, and an abnormality prompt is output. In order to notify relevant personnel to overhaul the equipment to avoid further damage to the equipment.
上述方案在压缩机进行吸气压力调节之后，通过判断压缩机吸气压力调节是否使实时吸气压力值大于吸气压力阈值，确定压缩机吸气压力调节控制是否有效，如若无效，则输出吸气压力调节控制异常提示，及时提醒相关人员维修，避免压缩机进一步损坏，保证设备的安全运行，进一步优化了用户的使用体验。After the compressor adjusts the suction pressure, the above scheme determines whether the compressor suction pressure adjustment control is effective by judging whether the compressor suction pressure adjustment makes the real-time suction pressure value greater than the suction pressure threshold. If it is invalid, the output suction pressure Indication of abnormal air pressure adjustment and control, promptly remind relevant personnel to repair, avoid further damage to the compressor, ensure the safe operation of the equipment, and further optimize the user experience.
实施例三：Example three:
在上述实施例的基础上，图3为本申请实施例三提供的一种压缩机的润滑调节装置的结构示意图。参考图3，本实施例提供的压缩机的润滑调节装置具体包括：设置模块、比对模块和调节模块。On the basis of the foregoing embodiment, FIG. 3 is a schematic structural diagram of a lubrication adjusting device for a compressor provided in the third embodiment of the application. Referring to FIG. 3, the lubrication adjusting device for the compressor provided in this embodiment specifically includes: a setting module, a comparison module, and an adjusting module.
其中设置模块31被配置成预先设置压缩机的吸气压力阈值，所述吸气压力阈值为压缩机安全运行所允许的最小吸气压力值；The setting module 31 is configured to pre-set the suction pressure threshold of the compressor, where the suction pressure threshold is the minimum suction pressure allowed for the safe operation of the compressor;
比对模块32被配置成在压缩机启动后，检测压缩机的实时吸气压力值，并将检测到的 所述实时吸气压力值与所述吸气压力阈值进行比对；The comparison module 32 is configured to detect the real-time suction pressure value of the compressor after the compressor is started, and compare the detected real-time suction pressure value with the suction pressure threshold;
调节模块33被配置成在所述实时吸气压力值小于或等于所述吸气压力阈值时，根据压缩机当前所处的调频阶段采用相应的频率调节方式进行压缩机频率调节，并调节压缩机电子膨胀阀，以提高所述实时吸气压力值。The adjustment module 33 is configured to, when the real-time suction pressure value is less than or equal to the suction pressure threshold, adjust the compressor frequency by adopting a corresponding frequency adjustment method according to the current frequency adjustment stage of the compressor, and adjust the compressor Electronic expansion valve to increase the real-time suction pressure value.
上述，通过预先设置压缩机的吸气压力阈值，在压缩机启动后，检测压缩机的实时吸气压力值，并在实时吸气压力值小于或等于吸气压力阈值时，根据压缩机当前所处的调频阶段采用相应的频率调节方式进行压缩机频率调节，并调节压缩机电子膨胀阀。采用上述技术手段，可以提高压缩机的实时吸气压力值，压缩机实时吸气压力提高可使压缩机冷媒流量增大，进而使冷媒能够带回足够的润滑油，避免压缩机由于润滑不良而出现故障乃至烧毁的情况。As mentioned above, by pre-setting the suction pressure threshold of the compressor, after the compressor is started, the real-time suction pressure of the compressor is detected, and when the real-time suction pressure is less than or equal to the suction pressure threshold, the compressor is The frequency adjustment stage adopts the corresponding frequency adjustment method to adjust the compressor frequency and adjust the compressor electronic expansion valve. Using the above technical means, the real-time suction pressure value of the compressor can be increased. The increase in the real-time suction pressure of the compressor can increase the refrigerant flow rate of the compressor, so that the refrigerant can bring back enough lubricating oil to avoid the compressor due to poor lubrication. There is a breakdown or even burned out.
具体地，所述调节模块包括第一调节单元，被配置成在压缩机处于升频阶段时，若所述实时吸气压力值小于或等于所述吸气压力阈值与第一预设正偏差值之和，则控制压缩机停止升频，并根据过热度调节电子膨胀阀。Specifically, the adjustment module includes a first adjustment unit configured to, when the compressor is in an up-frequency phase, if the real-time suction pressure value is less than or equal to the suction pressure threshold value and a first preset positive deviation value Sum, the compressor is controlled to stop the frequency increase, and the electronic expansion valve is adjusted according to the degree of superheat.
第二调节单元，被配置成在压缩机处于稳定频率阶段时，若所述实时吸气压力值小于所述吸气压力阈值与第一预设负偏差值之差，则控制压缩机按第一预设速率进行降频。The second adjusting unit is configured to control the compressor to press the first preset negative deviation value if the real-time suction pressure value is less than the difference between the suction pressure threshold value and the first preset negative deviation value when the compressor is in the stable frequency stage. Preset rate for frequency reduction.
第三调节单元，被配置成在压缩机处于稳定频率阶段或降频阶段时，若所述实时吸气压力值小于所述吸气压力阈值与第二预设负偏差值之差，则控制压缩机按第二预设速率进行降频。The third adjustment unit is configured to control the compression if the real-time suction pressure value is less than the difference between the suction pressure threshold value and the second preset negative deviation value when the compressor is in the stable frequency stage or the frequency reduction stage The machine performs frequency reduction at the second preset rate.
第四调节单元，被配置成在压缩机处于稳定频率阶段或降频阶段时，若所述实时吸气压力值小于所述吸气压力阈值与第三预设负偏差值之差，则控制压缩机按第三预设速率进行降频。The fourth adjusting unit is configured to control the compression if the real-time suction pressure value is less than the difference between the suction pressure threshold value and the third preset negative deviation value when the compressor is in the stable frequency stage or the frequency reduction stage The machine performs frequency reduction at the third preset rate.
第五调节单元，被配置成在检测当前压缩机排气温度和压缩机排气压力对应的冷凝温度的差值，当所述差值大于等于预设阈值时，对应调频阶段控制电子膨胀阀按相应的速率及步伐开大，直至所述实时吸气压力值大于所述吸气压力阈值与第一预设正偏差值之和，停止降频和开阀。The fifth adjustment unit is configured to detect the difference between the current compressor discharge temperature and the condensing temperature corresponding to the compressor discharge pressure, and when the difference is greater than or equal to a preset threshold, the electronic expansion valve corresponding to the frequency modulation stage is controlled to press The corresponding speed and pace are increased until the real-time inhalation pressure value is greater than the sum of the inhalation pressure threshold value and the first preset positive deviation value, stop frequency reduction and valve opening.
具体地，还包括提示模块，被配置成在设定时间段后若所述实时吸气压力值仍小于或等于所述吸气压力阈值，则判定为控制异常，输出异常提示。Specifically, it further includes a prompt module configured to determine that the control is abnormal and output an abnormal prompt if the real-time inhalation pressure value is still less than or equal to the inhalation pressure threshold after a set period of time.
本申请实施例三提供的压缩机的润滑调节装置可以被配置成执行上述实施例一和二提供的压缩机的润滑调节方法，具备相应的功能和有益效果。The lubrication adjustment device of the compressor provided in the third embodiment of the present application can be configured to implement the lubrication adjustment methods of the compressor provided in the first and second embodiments above, and has corresponding functions and beneficial effects.
实施例四：Embodiment four:
本申请实施例四提供了一种电子设备，参照图4，该电子设备包括：处理器41、存储器42、通信模块43、输入装置44及输出装置45。该电子设备中处理器的数量可以是一个 或者多个，该电子设备中的存储器的数量可以是一个或者多个。该电子设备的处理器41、存储器42、通信模块43、输入装置44及输出装置45可以通过总线或者其他方式连接。The fourth embodiment of the present application provides an electronic device. Referring to FIG. 4, the electronic device includes: a processor 41, a memory 42, a communication module 43, an input device 44 and an output device 45. The number of processors in the electronic device may be one or more, and the number of memories in the electronic device may be one or more. The processor 41, the memory 42, the communication module 43, the input device 44, and the output device 45 of the electronic device may be connected by a bus or other methods.
存储器42作为一种计算机可读存储介质，可被配置成存储软件程序、计算机可执行程序以及模块，如本申请任意实施例所述的压缩机的润滑调节方法对应的程序指令/模块(例如，压缩机的润滑调节装置中的设置模块、比对模块和调节模块)。存储器可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作***以及至少一个功能所需的应用程序；存储数据区可存储根据设备的使用所创建的数据等。此外，存储器可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。在一些实例中，存储器可进一步包括相对于处理器远程设置的存储器，这些远程存储器可以通过网络连接至设备。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。As a computer-readable storage medium, the memory 42 can be configured to store software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the compressor lubrication adjustment method described in any embodiment of the present application (for example, The setting module, the comparison module and the adjustment module in the lubrication adjustment device of the compressor). The memory may mainly include a program storage area and a data storage area. The program storage area may store an operating system and an application program required by at least one function; the data storage area may store data created according to the use of the device. In addition, the memory may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices. In some examples, the memory may further include a memory remotely provided with respect to the processor, and these remote memories may be connected to the device through a network. Examples of the aforementioned networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.
通信模块43被配置成进行数据传输。The communication module 43 is configured to perform data transmission.
处理器41通过运行存储在存储器中的软件程序、指令以及模块，从而执行设备的各种功能应用以及数据处理，即实现上述的压缩机的润滑调节方法。The processor 41 executes various functional applications and data processing of the equipment by running software programs, instructions, and modules stored in the memory, that is, realizes the above-mentioned compressor lubrication adjustment method.
输入装置44可被配置成接收输入的数字或字符信息，以及产生与设备的用户设置以及功能控制有关的键信号输入。输出装置45可包括显示屏等显示设备。The input device 44 may be configured to receive input numeric or character information, and generate key signal input related to user settings and function control of the device. The output device 45 may include a display device such as a display screen.
上述提供的电子设备可被配置成执行上述实施例一和二提供的压缩机的润滑调节方法，具备相应的功能和有益效果。The electronic device provided above can be configured to execute the lubrication adjustment method of the compressor provided in the first and second embodiments above, and has corresponding functions and beneficial effects.
实施例五：Embodiment five:
本申请实施例还提供一种包含计算机可执行指令的存储介质，所述计算机可执行指令被配置成在由计算机处理器执行时执行一种压缩机的润滑调节方法，该压缩机的润滑调节方法包括：预先设置压缩机的吸气压力阈值，所述吸气压力阈值为压缩机安全运行所允许的最小吸气压力值；在压缩机启动后，检测压缩机的实时吸气压力值，并将检测到的所述实时吸气压力值与所述吸气压力阈值进行比对；在所述实时吸气压力值小于或等于所述吸气压力阈值时，根据压缩机当前所处的调频阶段采用相应的频率调节方式进行压缩机频率调节，并调节压缩机电子膨胀阀，以提高所述实时吸气压力值。An embodiment of the present application also provides a storage medium containing computer-executable instructions configured to execute a compressor lubrication adjustment method when executed by a computer processor, and the compressor lubrication adjustment method Including: pre-setting the suction pressure threshold of the compressor, the suction pressure threshold is the minimum suction pressure value allowed by the safe operation of the compressor; after the compressor is started, the real-time suction pressure value of the compressor is detected, and the The detected real-time suction pressure value is compared with the suction pressure threshold; when the real-time suction pressure value is less than or equal to the suction pressure threshold, it is used according to the current frequency modulation stage of the compressor The corresponding frequency adjustment method adjusts the compressor frequency and adjusts the compressor electronic expansion valve to increase the real-time suction pressure value.
存储介质——任何的各种类型的存储器设备或存储设备。术语“存储介质”旨在包括：安装介质，例如CD-ROM、软盘或磁带装置；计算机***存储器或随机存取存储器，诸如DRAM、DDR RAM、SRAM、EDO RAM或兰巴斯(Rambus)RAM等；非易失性存储器，诸如闪存或磁介质(例如硬盘或光存储)；寄存器或其它相似类型的存储器元件等。存储介质可以还包括其它类型的存储器或其组合。另外，存储介质可以位于程序在其中被执行的第一计算机***中，或者可以位于不同的第二计算机***中，第二计算机***通过网络(诸 如因特网)连接到第一计算机***。第二计算机***可以提供程序指令给第一计算机用于执行。术语“存储介质”可以包括驻留在不同位置中(例如在通过网络连接的不同计算机***中)的两个或更多存储介质。存储介质可以存储可由一个或多个处理器执行的程序指令(例如具体实现为计算机程序)。Storage medium-any of various types of storage devices or storage devices. The term "storage medium" is intended to include: installation media, such as CD-ROM, floppy disk or tape device; computer system memory or random access memory, such as DRAM, DDR RAM, SRAM, EDO RAM or Rambus RAM, etc. ; Non-volatile memory, such as flash memory or magnetic media (such as hard disk or optical storage); registers or other similar types of memory elements. The storage medium may further include other types of memory or a combination thereof. In addition, the storage medium may be located in the first computer system in which the program is executed, or may be located in a different second computer system connected to the first computer system through a network (such as the Internet). The second computer system can provide the program instructions to the first computer for execution. The term "storage medium" may include two or more storage media residing in different locations (for example, in different computer systems connected through a network). The storage medium may store program instructions (for example, embodied as a computer program) executable by one or more processors.
当然，本申请实施例所提供的一种包含计算机可执行指令的存储介质，其计算机可执行指令不限于如上所述的压缩机的润滑调节方法，还可以执行本申请任意实施例所提供的压缩机的润滑调节方法中的相关操作。Of course, the storage medium containing computer-executable instructions provided by the embodiments of the present application is not limited to the compressor lubrication adjustment method described above, and can also execute the compression provided by any embodiment of the present application. Related operations in the lubrication adjustment method of the machine.
上述实施例中提供的压缩机的润滑调节装置、存储介质及电子设备可执行本申请任意实施例所提供的压缩机的润滑调节方法，未在上述实施例中详尽描述的技术细节，可参见本申请任意实施例所提供的压缩机的润滑调节方法。The compressor lubrication adjustment device, storage medium, and electronic equipment provided in the above embodiments can perform the compressor lubrication adjustment method provided in any embodiment of this application. For technical details not described in detail in the above embodiments, please refer to this Apply for the compressor lubrication adjustment method provided by any embodiment.
上述仅为本申请的较佳实施例及所运用的技术原理。本申请不限于这里所述的特定实施例，对本领域技术人员来说能够进行的各种明显变化、重新调整及替代均不会脱离本申请的保护范围。因此，虽然通过以上实施例对本申请进行了较为详细的说明，但是本申请不仅仅限于以上实施例，在不脱离本申请构思的情况下，还可以包括更多其他等效实施例，而本申请的范围由权利要求的范围决定。The foregoing are only the preferred embodiments of the present application and the technical principles used. The application is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions that can be made by those skilled in the art will not depart from the protection scope of the application. Therefore, although the application has been described in more detail through the above embodiments, the application is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the application. The scope of is determined by the scope of the claims.

Claims (10)

  1. 一种压缩机的润滑调节方法，其特征在于，包括：A method for adjusting lubrication of a compressor, which is characterized in that it comprises:
    预先设置压缩机的吸气压力阈值，所述吸气压力阈值为压缩机安全运行所允许的最小吸气压力值；Pre-setting the suction pressure threshold of the compressor, where the suction pressure threshold is the minimum suction pressure allowed for the safe operation of the compressor;
    在压缩机启动后，检测压缩机的实时吸气压力值，并将检测到的所述实时吸气压力值与所述吸气压力阈值进行比对；After the compressor is started, detecting the real-time suction pressure value of the compressor, and comparing the detected real-time suction pressure value with the suction pressure threshold;
    在所述实时吸气压力值小于或等于所述吸气压力阈值时，根据压缩机当前所处的调频阶段采用相应的频率调节方式进行压缩机频率调节，并调节压缩机电子膨胀阀，以提高所述实时吸气压力值。When the real-time suction pressure value is less than or equal to the suction pressure threshold, the compressor frequency is adjusted by the corresponding frequency adjustment method according to the current frequency adjustment stage of the compressor, and the compressor electronic expansion valve is adjusted to increase The real-time inspiratory pressure value.
  2. 根据权利要求1所述的压缩机的润滑调节方法，其特征在于，在所述实时吸气压力值小于或等于所述吸气压力阈值时，根据压缩机当前所处的调频阶段采用相应的频率调节方式进行压缩机频率调节，并调节压缩机电子膨胀阀，包括：The compressor lubrication adjustment method according to claim 1, wherein when the real-time suction pressure value is less than or equal to the suction pressure threshold value, the corresponding frequency is adopted according to the current frequency modulation stage of the compressor. The adjustment method adjusts the compressor frequency and adjusts the compressor electronic expansion valve, including:
    在压缩机处于升频阶段时，若所述实时吸气压力值小于或等于所述吸气压力阈值与第一预设正偏差值之和，则控制压缩机停止升频，并根据过热度调节电子膨胀阀。When the compressor is in the up-frequency phase, if the real-time suction pressure value is less than or equal to the sum of the suction pressure threshold and the first preset positive deviation value, the compressor is controlled to stop the up-frequency and adjust according to the degree of superheat Electronic expansion valve.
  3. 根据权利要求2所述的压缩机的润滑调节方法，其特征在于，在所述实时吸气压力值小于或等于所述吸气压力阈值时，根据压缩机当前所处的调频阶段采用相应的频率调节方式进行压缩机频率调节，并调节压缩机电子膨胀阀，还包括：The compressor lubrication adjustment method according to claim 2, wherein when the real-time suction pressure value is less than or equal to the suction pressure threshold value, the corresponding frequency is adopted according to the current frequency modulation stage of the compressor. The adjustment method adjusts the compressor frequency and adjusts the compressor's electronic expansion valve. It also includes:
    在压缩机处于稳定频率阶段时，若所述实时吸气压力值小于所述吸气压力阈值与第一预设负偏差值之差，则控制压缩机按第一预设速率进行降频。When the compressor is in the stable frequency stage, if the real-time suction pressure value is less than the difference between the suction pressure threshold and the first preset negative deviation value, the compressor is controlled to perform frequency reduction at a first preset rate.
  4. 根据权利要求3所述的压缩机的润滑调节方法，其特征在于，在所述实时吸气压力值小于或等于所述吸气压力阈值时，根据压缩机当前所处的调频阶段采用相应的频率调节方式进行压缩机频率调节，并调节压缩机电子膨胀阀，还包括：The compressor lubrication adjustment method according to claim 3, wherein when the real-time suction pressure value is less than or equal to the suction pressure threshold value, the corresponding frequency is adopted according to the current frequency modulation stage of the compressor. The adjustment method adjusts the compressor frequency and adjusts the compressor's electronic expansion valve. It also includes:
    在压缩机处于稳定频率阶段或降频阶段时，若所述实时吸气压力值小于所述吸气压力阈值与第二预设负偏差值之差，则控制压缩机按第二预设速率进行降频。When the compressor is in the stable frequency phase or the frequency reduction phase, if the real-time suction pressure value is less than the difference between the suction pressure threshold and the second preset negative deviation value, the compressor is controlled to perform at the second preset rate Down frequency.
  5. 根据权利要求4所述的压缩机的润滑调节方法，其特征在于，在所述实时吸气压力值小于或等于所述吸气压力阈值时，根据压缩机当前所处的调频阶段采用相应的频率调节方式进行压缩机频率调节，并调节压缩机电子膨胀阀，还包括：The compressor lubrication adjustment method according to claim 4, wherein when the real-time suction pressure value is less than or equal to the suction pressure threshold value, the corresponding frequency is adopted according to the current frequency modulation stage of the compressor. The adjustment method adjusts the compressor frequency and adjusts the compressor's electronic expansion valve. It also includes:
    在压缩机处于稳定频率阶段或降频阶段时，若所述实时吸气压力值小于所述吸气压力阈值与第三预设负偏差值之差，则控制压缩机按第三预设速率进行降频。When the compressor is in the stable frequency phase or the frequency reduction phase, if the real-time suction pressure value is less than the difference between the suction pressure threshold and the third preset negative deviation value, the compressor is controlled to perform at the third preset rate Down frequency.
  6. 根据权利要求3-5任一所述的压缩机的润滑调节方法，其特征在于，在所述实时吸气压力值小于或等于所述吸气压力阈值时，根据压缩机当前所处的调频阶段采用 相应的频率调节方式进行压缩机频率调节，并调节压缩机电子膨胀阀，还包括：The compressor lubrication adjustment method according to any one of claims 3-5, wherein when the real-time suction pressure value is less than or equal to the suction pressure threshold value, according to the current frequency modulation stage of the compressor Use the corresponding frequency adjustment method to adjust the compressor frequency and adjust the compressor electronic expansion valve, which also includes:
    检测当前压缩机排气温度和压缩机排气压力对应的冷凝温度的差值，当所述差值大于等于预设阈值时，对应调频阶段控制电子膨胀阀按相应的速率及步伐开大，直至所述实时吸气压力值大于所述吸气压力阈值与第一预设正偏差值之和，停止降频和开阀。The difference between the current compressor discharge temperature and the condensing temperature corresponding to the compressor discharge pressure is detected. When the difference is greater than or equal to the preset threshold, the corresponding frequency modulation stage controls the electronic expansion valve to open at the corresponding rate and pace until If the real-time suction pressure value is greater than the sum of the suction pressure threshold value and the first preset positive deviation value, the frequency reduction and valve opening are stopped.
  7. 根据权利要求1所述的压缩机的润滑调节方法，其特征在于，在根据压缩机当前所处的调频阶段采用相应的频率调节方式进行压缩机频率调节，并调节压缩机电子膨胀阀之后，还包括：The compressor lubrication adjustment method according to claim 1, characterized in that, after adjusting the compressor frequency according to the current frequency adjustment stage of the compressor and adjusting the compressor electronic expansion valve, the corresponding frequency adjustment method is used to adjust the compressor frequency. include:
    设定时间段后若所述实时吸气压力值仍小于或等于所述吸气压力阈值，则判定为控制异常，输出异常提示。If the real-time inhalation pressure value is still less than or equal to the inhalation pressure threshold value after the set time period, it is determined that the control is abnormal, and an abnormality prompt is output.
  8. 一种压缩机的润滑调节装置，其特征在于，包括：A lubrication adjusting device for a compressor is characterized in that it comprises:
    设置模块，被配置成预先设置压缩机的吸气压力阈值，所述吸气压力阈值为压缩机安全运行所允许的最小吸气压力值；A setting module configured to preset a suction pressure threshold of the compressor, where the suction pressure threshold is the minimum suction pressure allowed for safe operation of the compressor;
    比对模块，被配置成在压缩机启动后，检测压缩机的实时吸气压力值，并将检测到的所述实时吸气压力值与所述吸气压力阈值进行比对；The comparison module is configured to detect the real-time suction pressure value of the compressor after the compressor is started, and compare the detected real-time suction pressure value with the suction pressure threshold;
    调节模块，被配置成在所述实时吸气压力值小于或等于所述吸气压力阈值时，根据压缩机当前所处的调频阶段采用相应的频率调节方式进行压缩机频率调节，并调节压缩机电子膨胀阀，以提高所述实时吸气压力值。The adjustment module is configured to, when the real-time suction pressure value is less than or equal to the suction pressure threshold, adjust the compressor frequency by adopting a corresponding frequency adjustment method according to the current frequency adjustment stage of the compressor, and adjust the compressor Electronic expansion valve to increase the real-time suction pressure value.
  9. 一种电子设备，其特征在于，包括：An electronic device, characterized in that it comprises:
    存储器以及一个或多个处理器；Memory and one or more processors;
    所述存储器，被配置成存储一个或多个程序；The memory is configured to store one or more programs;
    当所述一个或多个程序被所述一个或多个处理器执行，使得所述一个或多个处理器实现如权利要求1-7任一所述的压缩机的润滑调节方法。When the one or more programs are executed by the one or more processors, the one or more processors realize the lubrication adjustment method of the compressor according to any one of claims 1-7.
  10. 一种包含计算机可执行指令的存储介质，其特征在于，所述计算机可执行指令被配置成在由计算机处理器执行时执行如权利要求1-7任一所述的压缩机的润滑调节方法。A storage medium containing computer-executable instructions, wherein the computer-executable instructions are configured to execute the compressor lubrication adjustment method according to any one of claims 1-7 when executed by a computer processor.
PCT/CN2019/124782 2019-10-15 2019-12-12 Compressor lubrication adjusting method and device, electronic equipment, and storage medium WO2021072954A1 (en)

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