CN109539630A - For compressing the compressor oil return method of refrigeration or heating combined equipment - Google Patents

For compressing the compressor oil return method of refrigeration or heating combined equipment Download PDF

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Publication number
CN109539630A
CN109539630A CN201811347513.4A CN201811347513A CN109539630A CN 109539630 A CN109539630 A CN 109539630A CN 201811347513 A CN201811347513 A CN 201811347513A CN 109539630 A CN109539630 A CN 109539630A
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CN
China
Prior art keywords
oil return
compressor
frequency
refrigeration
combined equipment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201811347513.4A
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Chinese (zh)
Other versions
CN109539630B (en
Inventor
张飞
陆建松
孙龙
姚永祥
张立智
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Parts Co., Ltd
Qingdao Haier Air Conditioner Gen Corp Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Air Conditioner Gen Corp Ltd
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Publication date
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Priority to CN201811347513.4A priority Critical patent/CN109539630B/en
Publication of CN109539630A publication Critical patent/CN109539630A/en
Priority to PCT/CN2019/103098 priority patent/WO2020098332A1/en
Application granted granted Critical
Publication of CN109539630B publication Critical patent/CN109539630B/en
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Classifications

    • 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
    • F25B31/00—Compressor arrangements
    • F25B31/002—Lubrication
    • F25B31/004—Lubrication oil recirculating arrangements
    • 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
    • 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
    • F25B2600/00—Control issues
    • F25B2600/01—Timing
    • 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
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control

Abstract

The present invention provides a kind of for compressing the compressor oil return method of refrigeration or heating combined equipment.It include: environment temperature t locating for the detection compressorao；According to the environment temperature taoDetermine the residence time y that the compressor stops at the first oil return frequency；It runs to the compressor at the first oil return frequency, and runs the residence time y.The compressor oil return method for being used to compress refrigeration or heating combined equipment of the invention improves compressor oil return operation, promotes fast-refrigerating heating effect, and ensure that compressor oil return is abundant.

Description

For compressing the compressor oil return method of refrigeration or heating combined equipment
Technical field
The present invention relates to cooling and warming fields, return more particularly to a kind of compressor for compressing refrigeration or heating combined equipment Oily method.
Background technique
In the process of running, refrigerant can take away the lubricating oil in compressor, in air conditioner when flowing through compressor to air conditioner When low-frequency operation, pressure reduction in refrigerant passage so that the flow velocity of lubricating oil and refrigerant reduce, cause compressor because of lubricating oil not It fails enough.Existing air conditioner oil return is generally according to fixed frequency and runs the mode of set time and carries out, and generally sets up two and returns Oily platform influences fast-refrigerating heating effect in first oil return platform long operational time.In addition, general second oil return platform Frequency is higher, is not that each run can all reach, no matter but target frequency be greater than and be also less than the compression of the first oil return platform It must force to reach the first oil return platform when machine starting operation, therefore the first oil return platform is affected to cooling or heating effect.
Summary of the invention
The present invention is directed to overcome at least one defect of existing cooler compressor oil return, provide a kind of for compressing refrigeration Or the compressor oil return method of heating combined equipment, compressor oil return operation is improved, promotes fast-refrigerating heating effect, and ensure to compress Machine oil return is abundant.
For this purpose, the invention proposes a kind of for compressing the compressor oil return method of refrigeration or heating combined equipment comprising:
Detect environment temperature t locating for the compressorao；
According to the environment temperature taoDetermine the residence time y that the compressor stops at the first oil return frequency；
It runs to the compressor at the first oil return frequency, and runs the residence time y.
Preferably, the residence time y and environment temperature taoBetween relational expression are as follows:
Y=a-b*INT [tao/c]；And
A is set time constant；B is that constant is distinguished in region；C is weight parameter；
As y < 0, y=0 is taken.
Preferably, the value range of a is 10-120；The value range of b is 2-12；The value range of c is 1-10.
Preferably, the compressor oil return method further include:
The target of the compressor follow-up operation is determined according to the subsequent pre-set programs of the compression refrigeration or heating combined equipment Frequency；
If the target frequency is greater than the first oil return frequency, and is greater than the second oil return frequency, transport the compressor Row runs preset time at the second oil return frequency；The second oil return frequency is greater than the first oil return frequency；
After the preset time, run to the compressor at the target frequency.
Preferably, after the compressor start, run to the compressor from the first oil return frequency from 0HZ, And the operation residence time y.
Preferably, a is preferably 60；B is preferably 6 or 8；C is preferably 4；
The compression refrigeration or heating combined equipment are air conditioner.
The inventors found that actually compressor is that oil return is more difficult in the state that temperature is lower, therefore needs oil return The time of operation is longer, and when environment temperature is higher, the viscosity of lubricating oil is lower, and oil return is more abundant, therefore the present invention mentions In the compressor oil return method for compressing refrigeration or heating combined equipment out, it is associated with environment temperature to devise compressor oil return Program, compressor only needs short time oil return that can run on high frequency when refrigeration in this way, improves fast-refrigerating effect Fruit improves user experience.The compressor oil return method for being used to compress refrigeration or heating combined equipment i.e. of the invention, improves compressor Oil return operation, promotes fast-refrigerating heating effect, and ensure that compressor oil return is abundant.
Detailed description of the invention
According to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will be brighter The above and other objects, advantages and features of the present invention.
Fig. 1 is the schematic flow chart of compressor oil return method according to an embodiment of the invention.
Specific embodiment
Some specific embodiments of the present invention is described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter. Identical appended drawing reference denotes same or similar part or part in attached drawing.It should be appreciated by those skilled in the art that these What attached drawing was not necessarily drawn to scale.
As shown in Fig. 1, the embodiment of the invention provides a kind of for compressing the compressor oil return method of refrigeration or heating combined equipment. The compressor oil return method may include following steps:
Detect environment temperature t locating for compressorao.That is environment temperature locating for detection compression refrigeration or heating combined equipment, with The oil return of compressor is controlled according to environment temperature.
According to environment temperature taoDetermine the residence time y that compressor stops at the first oil return frequency.
It runs to compressor at the first oil return frequency, and runs residence time y.
The inventors found that actually compressor is that oil return is more difficult in the state that temperature is lower, therefore needs oil return The time of operation is longer, and when environment temperature is higher, the viscosity of lubricating oil is lower, and oil return is more abundant, therefore the present invention mentions In the compressor oil return method for compressing refrigeration or heating combined equipment out, it is associated with environment temperature to devise compressor oil return Program, compressor only needs short time oil return that can run on high frequency when refrigeration in this way, improves fast-refrigerating effect Fruit improves user experience.The compressor oil return method for being used to compress refrigeration or heating combined equipment i.e. of the invention, improves compressor Oil return operation, promotes fast-refrigerating heating effect, and ensure that compressor oil return is abundant.It can protect and control with system matches, for Environmental change is matched, and is heated convenient for fast-refrigerating, while sufficiently ensureing compressor lubrication performance again.
In some embodiments of the invention, residence time y and environment temperature taoBetween relational expression are as follows:
Y=a-b*INT [tao/c]；And a is set time constant；B is that constant is distinguished in region；C is weight parameter；When y < 0 When, take y=0.
Further, the value range of a be 10-120, preferably 60.The value range of b be 2-12, preferably 6,8 etc., Conventional area desirable 6, cold district desirable 8.The value range of c be 1-10, preferably 4.Compression refrigeration or heating combined equipment are sky Adjust device.Further, it after compressor start, runs to compressor from the first oil return frequency from 0HZ, and runs the residence time Y, so that compressor oil return.
In some embodiments of the invention, compressor oil return method further include: according to compression refrigeration or heating combined equipment Subsequent pre-set programs determine the target frequency of compressor follow-up operation.If target frequency is greater than the first oil return frequency, and is greater than the Two oil return frequencies run to compressor at the second oil return frequency, and run preset time；Second oil return frequency is greater than first time Oily frequency.After preset time, run to compressor at target frequency.If target frequency is other situations, transport compressor Row is at target frequency.
In this embodiment, compressor starts after receiving enabling signal from 0HZ operation, and it is flat that raising frequency reaches the first oil return Platform, i.e. at the first oil return frequency, then the first oil return platform stop parallel-adder settle-out time y (above-mentioned residence time y), first time It determines that frequency rises, keeps or declines according to environmental parameter etc. after the completion of oily platform operation, continues after meeting rising condition Raising frequency reaches the second oil return platform (i.e. at the second oil return frequency) and keeps certain time, general second oil return platform frequency compared with Height, is not that each run can all reach, no matter but target frequency be greater than and be also less than the first oil return platform, compressor start It must force to reach the first oil return platform and residence time y when operation.
In some embodiments of the invention, a=60, b=6, c=4 are taken as the area according to carries out,.Then
Environment temperature tao=25 DEG C, then y=60-6*INT [25/4]=60-36=24s；
Environment temperature tao=38 DEG C, then y=60-6*INT [38/4]=60-54=6s；
Environment temperature tao=53 DEG C, then y=60-6*INT [38/4]=60-78=-18s < 0, then y=0s；
Environment temperature tao=-2 DEG C, then y=60-6*INT [- 2/4]=60- (- 6)=66s；
Environment temperature tao=-10 DEG C, then y=60-6*INT [- 10/4]=60- (- 18)=78s.From these specific implementations In example, it can be seen that with the raising of environment temperature when refrigeration, the time of oil return is shorter, then the speed freezed is faster；Conversely, system Heat is with the reduction of environment temperature, and the time of oil return is longer, then oil return is more abundant, then the protectiveness abrasion compressed is fewer, uses Service life is more long.
So far, although those skilled in the art will appreciate that present invention has been shown and described in detail herein multiple shows Example property embodiment still without departing from the spirit and scope of the present invention, still can according to the present disclosure directly Determine or deduce out many other variations or modifications consistent with the principles of the invention.Therefore, the scope of the present invention is understood that and recognizes It is set to and covers all such other variations or modifications.

Claims (6)

1. a kind of for compressing the compressor oil return method of refrigeration or heating combined equipment characterized by comprising
Detect environment temperature t locating for the compressorao；
According to the environment temperature taoDetermine the residence time y that the compressor stops at the first oil return frequency；
It runs to the compressor at the first oil return frequency, and runs the residence time y.
2. compressor oil return method according to claim 1, which is characterized in that
The residence time y and environment temperature taoBetween relational expression are as follows:
Y=a-b*INT [tao/c]；And
A is set time constant；B is that constant is distinguished in region；C is weight parameter；
As y < 0, y=0 is taken.
3. compressor oil return method according to claim 2, which is characterized in that
The value range of a is 10-120；The value range of b is 2-12；The value range of c is 1-10.
4. compressor oil return method according to claim 1, which is characterized in that further include:
The target frequency of the compressor follow-up operation is determined according to the subsequent pre-set programs of the compression refrigeration or heating combined equipment；
If the target frequency is greater than the first oil return frequency, and is greater than the second oil return frequency, run to the compressor At the second oil return frequency, and run preset time；The second oil return frequency is greater than the first oil return frequency；
After the preset time, run to the compressor at the target frequency.
5. compressor oil return method according to claim 1, which is characterized in that
It after the compressor start, runs to the compressor from the first oil return frequency from 0HZ, and stops described in operation Stay time y.
6. compressor oil return method according to claim 3, which is characterized in that
A is preferably 60；B is preferably 6 or 8；C is preferably 4；
The compression refrigeration or heating combined equipment are air conditioner.
CN201811347513.4A 2018-11-13 2018-11-13 Compressor oil return method for compression refrigeration or heating device Active CN109539630B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201811347513.4A CN109539630B (en) 2018-11-13 2018-11-13 Compressor oil return method for compression refrigeration or heating device
PCT/CN2019/103098 WO2020098332A1 (en) 2018-11-13 2019-08-28 Compressor oil return method for compression refrigeration or heating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811347513.4A CN109539630B (en) 2018-11-13 2018-11-13 Compressor oil return method for compression refrigeration or heating device

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Cited By (5)

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CN110411065A (en) * 2019-07-24 2019-11-05 南京天加环境科技有限公司 A kind of multi-connected machine method for controlling oil return
WO2020098332A1 (en) * 2018-11-13 2020-05-22 青岛海尔空调器有限总公司 Compressor oil return method for compression refrigeration or heating device
WO2020215766A1 (en) * 2019-04-26 2020-10-29 青岛海尔空调器有限总公司 Control method and control device for variable frequency air conditioner, and variable frequency air conditioner
CN112050433A (en) * 2019-06-05 2020-12-08 青岛海尔空调器有限总公司 Control method of air conditioner
CN112050434A (en) * 2019-06-05 2020-12-08 青岛海尔空调器有限总公司 Control method of air conditioner

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Publication number Priority date Publication date Assignee Title
WO2020098332A1 (en) * 2018-11-13 2020-05-22 青岛海尔空调器有限总公司 Compressor oil return method for compression refrigeration or heating device
WO2020215766A1 (en) * 2019-04-26 2020-10-29 青岛海尔空调器有限总公司 Control method and control device for variable frequency air conditioner, and variable frequency air conditioner
CN112050433A (en) * 2019-06-05 2020-12-08 青岛海尔空调器有限总公司 Control method of air conditioner
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CN110411065A (en) * 2019-07-24 2019-11-05 南京天加环境科技有限公司 A kind of multi-connected machine method for controlling oil return

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WO2020098332A1 (en) 2020-05-22

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Effective date of registration: 20200915

Address after: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China

Co-patentee after: Qingdao Haier Parts Co., Ltd

Patentee after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd.

Address before: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China

Patentee before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd.

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Effective date of registration: 20201104

Address after: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China

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Patentee after: Qingdao Haier Parts Co., Ltd

Patentee after: Haier Zhijia Co.,Ltd.

Address before: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China

Patentee before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd.

Patentee before: Qingdao Haier Parts Co., Ltd