CN109539630B - Compressor oil return method for compression refrigeration or heating device - Google Patents

Compressor oil return method for compression refrigeration or heating device Download PDF

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Publication number
CN109539630B
CN109539630B CN201811347513.4A CN201811347513A CN109539630B CN 109539630 B CN109539630 B CN 109539630B CN 201811347513 A CN201811347513 A CN 201811347513A CN 109539630 B CN109539630 B CN 109539630B
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China
Prior art keywords
oil return
compressor
frequency
heating device
operated
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CN201811347513.4A
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CN109539630A (en
Inventor
张飞
陆建松
孙龙
姚永祥
张立智
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Qingdao Haier Parts Co., Ltd
Qingdao Haier Air Conditioner Gen Corp Ltd
Haier Smart Home Co Ltd
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Qingdao Haier Air Conditioner Gen Corp Ltd
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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
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • 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

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)

Abstract

The invention provides an oil return method of a compressor for a compression refrigeration or heating device. The method comprises the following steps: detecting the ambient temperature t of the compressorao(ii) a According to the ambient temperature taoDetermining a residence time y of the compressor at a first oil return frequency; operating the compressor to the first oil return frequency and operating the residence time y. The compressor oil return method for the compression refrigeration or heating device improves the oil return operation of the compressor, improves the quick refrigeration and heating effect and ensures that the oil return of the compressor is sufficient.

Description

Compressor oil return method for compression refrigeration or heating device
Technical Field
The invention relates to the field of refrigeration and heating, in particular to an oil return method for a compressor of a compression refrigeration or heating device.
Background
The air conditioner is at the operation in-process, and the refrigerant can take away the lubricating oil in the compressor when the compressor is flowing through, and when the air conditioner low frequency operation, refrigerant passageway internal pressure reduces for the velocity of flow of lubricating oil and refrigerant reduces, leads to the compressor to lose efficacy because of the lubricating oil is not enough. The oil return of the existing air conditioner is generally carried out according to a mode of fixed frequency and fixed time operation, two oil return platforms are generally set, the operation time of the first oil return platform is long, and the quick refrigerating and heating effects are influenced. In addition, generally, the frequency of the second oil return platform is higher, and the second oil return platform is not reached every time of operation, but the target frequency is greater than or less than the target frequency of the first oil return platform, and the first oil return platform must be forcibly reached to the first oil return platform when the compressor starts to operate, so that the first oil return platform has a great influence on the cooling and heating effects.
Disclosure of Invention
The invention aims to overcome at least one defect of oil return of the compressor of the existing air conditioner, and provides a compressor oil return method for a compression refrigeration or heating device, which improves the oil return operation of the compressor, promotes the quick refrigeration and heating effect, and ensures the sufficient oil return of the compressor.
To this end, the present invention provides a compressor oil return method for a compression refrigeration or heating device, which comprises:
detecting the ambient temperature t of the compressorao；
According to the ambient temperature taoDetermining a residence time y of the compressor at a first oil return frequency;
operating the compressor to the first oil return frequency and operating the residence time y.
Preferably, the residence time y is related to the ambient temperature taoThe relationship between them is:
y＝a-b*INT[tao/c](ii) a And is
a is a fixed time constant; b is a region distinguishing constant; c is a weight parameter;
and when y is less than 0, taking y as 0.
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 oil return method for the compressor further comprises the following steps:
determining the target frequency of the subsequent operation of the compressor according to the subsequent preset program of the compression refrigeration or heating device;
if the target frequency is greater than the first oil return frequency and greater than a second oil return frequency, the compressor is operated to the second oil return frequency and is operated for a preset time; the second oil return frequency is greater than the first oil return frequency;
after the preset time, the compressor is operated to the target frequency.
Preferably, after the compressor is started, the compressor is operated from 0HZ to the first oil return frequency and the residence time y is operated.
Preferably, a is preferably 60; b is preferably 6 or 8; c is preferably 4;
the compression refrigerating or heating device is an air conditioner.
The inventor of the invention finds that in fact, the oil return of the compressor is more difficult in a lower temperature state, so that the oil return operation time is longer, and when the environment temperature is higher, the viscosity of lubricating oil is lower, and the oil return is more sufficient. The compressor oil return method for the compression refrigeration or heating device improves the oil return operation of the compressor, improves the quick refrigeration and heating effect and ensures that the oil return of the compressor is sufficient.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic flow diagram of a compressor oil return method according to one embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic flow diagram of a compressor oil return method according to one embodiment of the present invention. As shown in fig. 1, an embodiment of the present invention provides a compressor oil return method for a compression cooling or heating apparatus. The oil return method for the compressor can comprise the following steps:
detecting the ambient temperature t at which the compressor is locatedao. Namely, the ambient temperature of the compression refrigeration or heating device is detected, so as to control the oil return of the compressor according to the ambient temperature.
According to the ambient temperature taoThe residence time y of the compressor at the first oil return frequency is determined.
The compressor is operated to the first oil return frequency and for a dwell time y.
The inventor of the invention finds that in fact, the oil return of the compressor is more difficult in a lower temperature state, so that the oil return operation time is longer, and when the environment temperature is higher, the viscosity of lubricating oil is lower, and the oil return is more sufficient. The compressor oil return method for the compression refrigeration or heating device improves the oil return operation of the compressor, improves the quick refrigeration and heating effect and ensures that the oil return of the compressor is sufficient. The compressor lubricating device can be matched with a system for protection control, is matched with environmental changes, is convenient for quick refrigeration and heating, and fully ensures the lubricating performance of the compressor.
In some embodiments of the invention, the residence time y is related to the ambient temperature taoThe relationship between them is:
y＝a-b*INT[tao/c](ii) a And a is a fixed time constant; b is a region distinguishing constant; c is a weight parameter; when y is<When 0, y is 0.
Further, the value range of a is 10-120, preferably 60. The value range of b is 2-12, preferably 6, 8 and the like, 6 is taken in a conventional area, and 8 is taken in a cold area. The value range of c is 1-10, preferably 4. The compression refrigerating or heating device is an air conditioner. Further, after the compressor is started, the compressor is operated from 0HZ to the first oil return frequency and the dwell time y is operated to return the oil to the compressor.
In some embodiments of the invention, the compressor oil return method further comprises: and determining the target frequency of the subsequent operation of the compressor according to the subsequent preset program of the compression refrigeration or heating device. If the target frequency is greater than the first oil return frequency and greater than the second oil return frequency, the compressor is operated to the second oil return frequency and is operated for a preset time; the second oil return frequency is greater than the first oil return frequency. After a preset time, the compressor is operated to the target frequency. And if the target frequency is other conditions, operating the compressor to the target frequency.
In this embodiment, the compressor is started from 0HZ operation after receiving a start signal, the frequency is raised to reach a first oil return platform, that is, a first oil return frequency, and then the first oil return platform stays at a stable operation time y (the stay time y), the frequency is determined to be raised, maintained, or lowered according to environmental parameters and the like after the first oil return platform is completed, the frequency is raised to reach a second oil return platform (that is, a second oil return frequency) and is maintained for a certain time after the rise condition is met, generally, the frequency of the second oil return platform is higher, and the frequency is not reached every time of operation, but the compressor must be forced to reach the first oil return platform and stay for the time y when the target frequency is greater than or less than the first oil return platform during the start operation.
In some embodiments of the present invention, as performed by general regions, a is 60, b is 6, and c is 4. Then
Ambient temperature taoAt 25 deg.C, y is 60-6 INT 25/4]＝60-36＝24s；
Ambient temperature tao38 ℃, then y is 60-6 INT 38/4]＝60-54＝6s；
Ambient temperature taoAt 53 deg.C, y is 60-6 INT 38/4]＝60-78＝-18s<0, then y is 0 s;
ambient temperature tao-2 ℃, then y-60-6 INT-2/4]＝60-(-6)＝66s；
Ambient temperature tao-10 ℃, then y-60-6 INT-10/4]60- (-18) ═ 78 s. In the embodiments, it can be seen that as the ambient temperature rises during refrigeration, the shorter the oil return time is, the faster the refrigeration speed is; conversely, as the ambient temperature decreases in heating, the longer the oil return time, the more sufficient the oil return, the less protective wear of the compression, and the longer the service life.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims (6)

1. A method for returning oil to compressor of refrigerating or heating apparatus includes detecting the ambient temp t of said compressorao(ii) a It is characterized by also comprising:
according to the ambient temperature taoDetermining a residence time y of the compressor at a first oil return frequency;
operating the compressor to the first oil return frequency and operating the residence time y.
2. The compressor oil return method according to claim 1,
the dwell time y and the ambient temperature taoThe relationship between them is:
y＝a-b*INT[tao/c](ii) a And is
a is a fixed time constant; b is a region distinguishing constant; c is a weight parameter;
and when y is less than 0, taking y as 0.
3. The compressor oil return method according to claim 2,
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. The compressor oil return method according to claim 1, further comprising:
determining the target frequency of the subsequent operation of the compressor according to the subsequent preset program of the compression refrigeration or heating device;
if the target frequency is greater than the first oil return frequency and greater than a second oil return frequency, the compressor is operated to the second oil return frequency and is operated for a preset time; the second oil return frequency is greater than the first oil return frequency;
after the preset time, the compressor is operated to the target frequency.
5. The compressor oil return method according to claim 1,
after the compressor is started, the compressor is operated from 0Hz to the first oil return frequency, and the residence time y is operated.
6. The compressor oil return method according to claim 3,
a is preferably 60; b is preferably 6 or 8; c is preferably 4;
the compression refrigerating or heating device is an 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

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CN109539630B (en) * 2018-11-13 2020-05-29 青岛海尔空调器有限总公司 Compressor oil return method for compression refrigeration or heating device
CN111854078A (en) * 2019-04-26 2020-10-30 青岛海尔空调器有限总公司 Control method and control device of variable frequency air conditioner and variable frequency air conditioner
CN112050434B (en) * 2019-06-05 2022-03-29 青岛海尔空调器有限总公司 Control method of 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
CN110411065B (en) * 2019-07-24 2021-02-02 南京天加环境科技有限公司 Multi-split oil return control method

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006214602A (en) * 2005-02-01 2006-08-17 Matsushita Electric Ind Co Ltd Refrigerating cycle device
JP5484930B2 (en) * 2010-01-25 2014-05-07 三菱重工業株式会社 Air conditioner
CN101776355B (en) * 2010-03-12 2011-11-30 湖南大学 Oil-return control method of large-head long-piping heat pump air conditioning system
CN101968248B (en) * 2010-08-26 2012-10-17 宁波奥克斯电气有限公司 Control method for oil return of DC inverter compressor
CN104180563B (en) * 2013-05-27 2017-06-20 珠海格力电器股份有限公司 Oil return method when multiple on-line system is heated
JP6230931B2 (en) * 2014-02-20 2017-11-15 三菱重工サーマルシステムズ株式会社 Multi-type air conditioner
CN105588384B (en) * 2014-12-10 2018-03-16 海信（山东）空调有限公司 The method for controlling oil return and device of a kind of frequency converting air-conditioner compressor
CN104949407B (en) * 2015-06-12 2017-10-31 珠海格力电器股份有限公司 The control method of oil separator component, refrigeration system and refrigeration system
CN105371531B (en) * 2015-11-30 2018-02-09 珠海格力电器股份有限公司 The low frequency method for controlling oil return and system of air conditioner
CN105758065B (en) * 2016-02-29 2019-04-12 青岛海尔空调电子有限公司 A kind of air-conditioning system method for controlling oil return
CN107860161B (en) * 2017-09-19 2019-08-27 珠海格力电器股份有限公司 Compressor casing switching method, device, storage medium, compressor and equipment
CN109539630B (en) * 2018-11-13 2020-05-29 青岛海尔空调器有限总公司 Compressor oil return method for compression refrigeration or heating device

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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

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

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