CN112665231A - Control method of waterless floor heating multi-online quick oil distribution device - Google Patents
Control method of waterless floor heating multi-online quick oil distribution device Download PDFInfo
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- CN112665231A CN112665231A CN202110081740.2A CN202110081740A CN112665231A CN 112665231 A CN112665231 A CN 112665231A CN 202110081740 A CN202110081740 A CN 202110081740A CN 112665231 A CN112665231 A CN 112665231A
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- 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
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Abstract
The invention discloses a control method of a waterless floor heating multi-online quick oil distribution device, which comprises the following steps: when the outdoor environment temperature is lower than 0-5 ℃, the unit stop time is more than 10-15 hours, if the indoor floor heating needs to be started, the first oil return pipeline is opened after the compressor is started to operate for 5-15 seconds, and if the exhaust temperature is greater than or equal to 45-55 ℃ or the exhaust superheat degree is greater than or equal to 10-20 ℃ after 2-4 minutes, the first oil return pipeline is closed; execution condition 2: detecting the exhaust superheat degree and the exhaust temperature within 2-4 minutes of the compressor, and opening a second oil return pipeline if the exhaust temperature is more than or equal to 45-55 ℃ or the exhaust superheat degree is more than or equal to 8-14 ℃; execution condition 3: and in the running process, if the exhaust temperature is lower than or equal to 45-55 ℃ or the exhaust superheat degree is lower than or equal to 3-7 ℃, the first oil return pipeline is opened again, the second oil return pipeline is closed at the same time, and the condition 1 is executed again. The invention can quickly separate the liquid refrigerant from the lubricating oil under the condition of low temperature, so that the heating capacity of the system is quickly improved.
Description
Technical Field
The invention relates to a control method of a waterless floor heating multi-online quick oil distribution device.
Background
The system has no feeling of heating and warming people in winter, is very comfortable and does not occupy any space. The air-conditioning diseases caused by using the conventional air-conditioning system are avoided.
Capillary radiation air conditioning system it can guarantee that the indoor temperature remains the temperature equilibrium all the time, more is favorable to people to live in addition, and living environment is also more comfortable, compares in traditional air conditioning system, and it can provide more even heat radiation and contain the new trend of no blowing sense, and this air conditioning system can avoid any noise to disturb user's official working and rest in addition, and the interior space is also more wide and quiet.
The biggest difficulty of the system is that due to the fact that the room areas are different in size and the laying areas of the capillary tubes of the floor heating modules are different, the adding amount of the refrigerant in the positive machine system is different, particularly under the condition of low temperature freezing in the north, if the outdoor machine is stopped in a low-temperature environment for a long time, the lubricating oil of the compressor and the liquid refrigerant of the refrigerant are mixed, and the compressor is finally damaged if the oil return is not smooth in the starting stage.
Disclosure of Invention
Aiming at the problems, the invention provides a control method of a waterless floor heating multi-online quick oil distribution device, which effectively solves the problems pointed out in the background technology.
The technical scheme adopted by the invention is as follows:
a control method of a waterless floor heating multi-online quick oil separation device comprises a compressor and a high-pressure oil separator at a discharge port of the compressor, wherein a first oil return pipeline and a second oil return pipeline are arranged at the bottom of the high-pressure oil separator, and the control method comprises the following steps: execution condition 1: when the outdoor environment temperature is lower than 0-5 ℃, the unit stop time is more than 10-15 hours, if the indoor floor heating needs to be started, the first oil return pipeline is opened after the compressor is started to operate for 5-15 seconds, and if the exhaust temperature is greater than or equal to 45-55 ℃ or the exhaust superheat degree is greater than or equal to 10-20 ℃ after 2-4 minutes, the first oil return pipeline is closed, the second oil return pipeline is opened at the same time, otherwise, the first oil return pipeline is closed after 4-6 minutes, and the second oil return pipeline is opened; execution condition 2: detecting the exhaust superheat degree and the exhaust temperature within 2-4 minutes of the compressor, if the exhaust temperature is greater than or equal to 45-55 ℃, or the exhaust superheat degree is greater than or equal to 8-14 ℃, opening a second oil return pipeline, otherwise, opening the second oil return pipeline after 2-4 minutes; execution condition 3: and in the running process, if the exhaust temperature is lower than or equal to 45-55 ℃ or the exhaust superheat degree is lower than or equal to 3-7 ℃, the first oil return pipeline is opened again, the second oil return pipeline is closed at the same time, and the condition 1 is executed again.
Preferably, the first oil return pipeline comprises an oil return filter, an electronic expansion valve and a first oil return capillary tube which are sequentially connected from front to back, the oil return filter is connected with the high-pressure oil separator, the first oil return capillary tube is connected with a third port spray welding port of the compressor, the second oil return pipeline comprises a second oil return capillary tube and an electromagnetic valve which are sequentially connected from front to back, the second oil return capillary tube is connected with the high-pressure oil separator, the electromagnetic valve is connected with an air return port of the compressor, and the control method comprises the following steps: execution condition 1: when the outdoor environment temperature is lower than 0-5 ℃, the unit stop time exceeds 10-15 hours, if the indoor floor heating needs to be started, the electronic expansion valve is opened after the compressor is started to operate for 5-15 seconds, the initial opening is 50-70P, the regulation rate is 0.5-2 times/30 seconds, 4-8P is increased each time, the maximum opening is 100-140P, and after 2-4 minutes, if the exhaust temperature is greater than or equal to 45-55 ℃, or the exhaust superheat degree is greater than or equal to 10-20 ℃, the electronic expansion valve is closed, otherwise, the electronic expansion valve is closed after 4-6 minutes; execution condition 2: detecting the exhaust superheat degree and the exhaust temperature within 2-4 minutes of the compressor, if the exhaust temperature is greater than or equal to 45-55 ℃, or the exhaust superheat degree is greater than or equal to 8-14 ℃, opening the electromagnetic valve to maintain unchanged, otherwise, opening the electromagnetic valve after 2-4 minutes; execution condition 3: and in the running process, if the exhaust temperature is lower than or equal to 45-55 ℃ or the exhaust superheat degree is lower than or equal to 3-7 ℃, the electronic expansion valve is opened again, the electromagnetic valve is closed at the same time, and the condition 1 is executed again.
Preferably, the third port of the compressor is provided with a one-way valve which flows in one way from outside to inside.
Preferably, the compressor adopts an enhanced vapor injection compressor.
Preferably, the high-pressure oil separator is a 0.2L high-pressure oil separator.
The invention can quickly separate the liquid refrigerant from the lubricating oil under the condition of low temperature, and can simultaneously carry out secondary compression on the gas-liquid refrigerant, so that the temperature of the lubricating oil is quickly increased, the frequency of the compressor is quickly increased, and the heating capacity of the system is quickly increased.
Drawings
FIG. 1 is a schematic structural view of a rapid oil distribution device according to the present invention;
fig. 2 is a schematic structural view of the rapid oil distribution device installed in the waterless floor heating multi-connected unit.
Detailed Description
The invention is described in further detail below with reference to specific embodiments and with reference to the attached drawings.
Example 1
As shown in fig. 1 and 2, a control method of a waterless floor heating multi-split quick oil separation device includes a compressor 1 and a high-pressure oil separator 2 at an outlet of the compressor 1, a first oil return pipeline and a second oil return pipeline are arranged at the bottom of the high-pressure oil separator 2, and the control method includes:
execution condition 1: when the outdoor environment temperature is lower than 0-5 ℃, the unit stop time is more than 10-15 hours, if the indoor floor heating needs to be started, the first oil return pipeline is opened after the compressor 1 is started to operate for 5-15 seconds, and if the exhaust temperature is greater than or equal to 45-55 ℃ or the exhaust superheat degree is greater than or equal to 10-20 ℃ after 2-4 minutes, the first oil return pipeline is closed, the second oil return pipeline is opened, otherwise, the first oil return pipeline is closed after 4-6 minutes, and the second oil return pipeline is opened;
execution condition 2: detecting the exhaust superheat degree and the exhaust temperature within 2-4 minutes of the compressor 1, if the exhaust temperature is greater than or equal to 45-55 ℃ or the exhaust superheat degree is greater than or equal to 8-14 ℃, opening a second oil return pipeline, otherwise, opening the second oil return pipeline after 2-4 minutes;
execution condition 3: and in the running process, if the exhaust temperature is lower than or equal to 45-55 ℃ or the exhaust superheat degree is lower than or equal to 3-7 ℃, the first oil return pipeline is opened again, the second oil return pipeline is closed at the same time, and the condition 1 is executed again.
First oil return pipeline including the oil return filter 3, electronic expansion valve 4 and the first oil return capillary 5 that link to each other in proper order from beginning to end, oil return filter 3 link to each other with high-pressure oil separator 2, first oil return capillary 5 link to each other with the third mouth spray-welding mouth of compressor 1, second oil return pipeline including the second oil return capillary 6 and the solenoid valve 7 that link to each other in proper order from beginning to end, second oil return capillary 6 link to each other with high-pressure oil separator 2, solenoid valve 7 link to each other with the return-air port of compressor 1, control method as follows:
execution condition 1: when the outdoor environment temperature is lower than 0-5 ℃, the unit stop time exceeds 10-15 hours, if the indoor floor heating needs to be started, the electronic expansion valve 4 is opened after the compressor 1 is started and operated for 5-15 seconds, the initial opening is 50-70P, the regulation rate is 0.5-2 times/30 seconds, 4-8P is increased each time, the maximum opening is 100-140P, and after 2-4 minutes, if the exhaust temperature is greater than or equal to 45-55 ℃, or the exhaust superheat degree is greater than or equal to 10-20 ℃, the electronic expansion valve 4 is closed, the electromagnetic valve 7 is opened at the same time, otherwise, the electronic expansion valve 4 is closed after 4-6 minutes, and the electromagnetic valve 7 is opened at the same time;
execution condition 2: detecting the exhaust superheat degree and the exhaust temperature within 2-4 minutes of the operation of the compressor 1, if the exhaust temperature is greater than or equal to 45-55 ℃, or the exhaust superheat degree is greater than or equal to 8-14 ℃, opening the electromagnetic valve 7 to keep unchanged, otherwise, opening the electromagnetic valve 7 after 2-4 minutes;
execution condition 3: if the exhaust temperature is lower than or equal to 45-55 ℃ or the exhaust superheat degree is lower than or equal to 3-7 ℃ in the operation process, the electronic expansion valve 4 is opened again, the electromagnetic valve 7 is closed at the same time, and the condition 1 is executed again.
And a check valve 8 which flows in a one-way from outside to inside is arranged at the spray welding port of the third port of the compressor 1.
The compressor 1 adopts an enhanced vapor injection compressor.
The high-pressure oil separator 2 adopts a 0.2L high-pressure oil separator.
The working principle of the invention is as follows:
when the compressor 1 is started under the outdoor low-temperature condition, the electronic expansion valve 4 is opened, and at the moment, the liquid refrigerant in the high-pressure oil separator 2 is throttled into gas by the electronic expansion valve 4 and enters the medium-pressure cavity of the compressor 1 to participate in secondary compression again; thus, the high-pressure gas refrigerant discharged by the compressor 1 is heated again, the lubricating oil is separated from the high-temperature gaseous refrigerant, the lubricating oil returns to the air return port of the compressor 1 through the electromagnetic valve 7 and returns to the oil pool, and the high-temperature gaseous refrigerant enters the system to participate in circulation.
Finally, it should be noted that the above-mentioned list is only the specific embodiment of the present invention. Obviously, the present invention is not limited to the above embodiments, and many modifications are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the invention.
Claims (5)
1. The control method of the waterless floor heating multi-split quick oil separating device is characterized in that the quick oil separating device comprises a compressor (1) and a high-pressure oil separator (2) at a discharge port of the compressor (1), a first oil return pipeline and a second oil return pipeline are arranged at the bottom of the high-pressure oil separator (2), and the control method comprises the following steps: execution condition 1: when the outdoor environment temperature is lower than 0-5 ℃, the unit stop time is more than 10-15 hours, if the indoor floor heating needs to be started, the first oil return pipeline is opened after the compressor (1) is started to operate for 5-15 seconds, and if the exhaust temperature is greater than or equal to 45-55 ℃ or the exhaust superheat degree is greater than or equal to 10-20 ℃ after 2-4 minutes, the first oil return pipeline is closed, the second oil return pipeline is opened, otherwise, the first oil return pipeline is closed and the second oil return pipeline is opened after 4-6 minutes; execution condition 2: detecting the exhaust superheat degree and the exhaust temperature within 2-4 minutes of the operation of the compressor (1), if the exhaust temperature is greater than or equal to 45-55 ℃ or the exhaust superheat degree is greater than or equal to 8-14 ℃, opening a second oil return pipeline, otherwise, opening the second oil return pipeline after 2-4 minutes; execution condition 3: and in the running process, if the exhaust temperature is lower than or equal to 45-55 ℃ or the exhaust superheat degree is lower than or equal to 3-7 ℃, the first oil return pipeline is opened again, the second oil return pipeline is closed at the same time, and the condition 1 is executed again.
2. The control method of the waterless floor heating multi-split quick oil separating device according to claim 1, wherein the first oil return pipeline comprises an oil return filter (3), an electronic expansion valve (4) and a first oil return capillary tube (5) which are sequentially connected from front to back, the oil return filter (3) is connected with the high-pressure oil separator (2), the first oil return capillary tube (5) is connected with a third port spray welding port of the compressor (1), the second oil return pipeline comprises a second oil return capillary tube (6) and an electromagnetic valve (7) which are sequentially connected from front to back, the second oil return capillary tube (6) is connected with the high-pressure oil separator (2), the electromagnetic valve (7) is connected with an air return port of the compressor (1), and the control method comprises the following steps: execution condition 1: when the outdoor environment temperature is lower than 0-5 ℃, the unit stop time exceeds 10-15 hours, if the indoor floor heating needs to be opened, the electronic expansion valve (4) is opened after the compressor (1) is started to operate for 5-15 seconds, the initial opening degree is 50-70P, the regulation rate is 0.5-2 times/30 seconds, 4-8P is increased every time, the maximum opening degree is 100-140P, and after 2-4 minutes, if the exhaust temperature is greater than or equal to 45-55 ℃, or the exhaust superheat degree is greater than or equal to 10-20 ℃, the electronic expansion valve (4) is closed, the electromagnetic valve (7) is opened at the same time, otherwise, the electronic expansion valve (4) is closed after 4-6 minutes, and the electromagnetic valve (7) is; execution condition 2: detecting the exhaust superheat degree and the exhaust temperature in 2-4 minutes of the operation of the compressor (1), if the exhaust temperature is greater than or equal to 45-55 ℃ or the exhaust superheat degree is greater than or equal to 8-14 ℃, opening the electromagnetic valve (7) to keep unchanged, otherwise, opening the electromagnetic valve (7) after 2-4 minutes; execution condition 3: if the exhaust temperature is lower than or equal to 45-55 ℃ or the exhaust superheat degree is lower than or equal to 3-7 ℃ in the operation process, the electronic expansion valve (4) is opened again, the electromagnetic valve (7) is closed at the same time, and the condition 1 is executed again.
3. The control method of the waterless floor heating multi-split quick oil distribution device as claimed in claim 1, wherein a check valve (8) for one-way flow from outside to inside is arranged at a spray welding port of a third port of the compressor (1).
4. The control method of the waterless floor heating multi-split quick oil distribution device according to claim 1, wherein the compressor (1) is an enhanced vapor injection compressor.
5. The control method of the waterless floor heating multi-online quick oil separation device as claimed in claim 1, wherein the high-pressure oil separator (2) is a 0.2L high-pressure oil separator.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110081740.2A CN112665231B (en) | 2021-01-21 | 2021-01-21 | Control method of waterless floor heating multi-online quick oil distribution device |
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| CN202110081740.2A CN112665231B (en) | 2021-01-21 | 2021-01-21 | Control method of waterless floor heating multi-online quick oil distribution device |
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| CN112665231B CN112665231B (en) | 2023-04-07 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2310160A1 (en) * | 1999-12-30 | 2001-06-30 | Halla Climate Control Corp. | Internal oil separator for compressors of refrigeration system |
| CN109579348A (en) * | 2018-12-04 | 2019-04-05 | 宁波工程学院 | The multi-functional multi-joint dry type capillary radiation heat pump unit of one kind and its control method |
| CN110440402A (en) * | 2019-07-02 | 2019-11-12 | 青岛海尔空调电子有限公司 | Air conditioner and oil return control method thereof |
| CN111426040A (en) * | 2020-04-03 | 2020-07-17 | 广东美的暖通设备有限公司 | Air conditioner, operation control method of air conditioner, and readable storage medium |
| CN211084491U (en) * | 2019-10-10 | 2020-07-24 | 珠海格力电器股份有限公司 | Heat pump unit with capillary network |
-
2021
- 2021-01-21 CN CN202110081740.2A patent/CN112665231B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2310160A1 (en) * | 1999-12-30 | 2001-06-30 | Halla Climate Control Corp. | Internal oil separator for compressors of refrigeration system |
| CN109579348A (en) * | 2018-12-04 | 2019-04-05 | 宁波工程学院 | The multi-functional multi-joint dry type capillary radiation heat pump unit of one kind and its control method |
| CN110440402A (en) * | 2019-07-02 | 2019-11-12 | 青岛海尔空调电子有限公司 | Air conditioner and oil return control method thereof |
| CN211084491U (en) * | 2019-10-10 | 2020-07-24 | 珠海格力电器股份有限公司 | Heat pump unit with capillary network |
| CN111426040A (en) * | 2020-04-03 | 2020-07-17 | 广东美的暖通设备有限公司 | Air conditioner, operation control method of air conditioner, and readable storage medium |
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Address after: 323000 No.96 Yunjing Road, Shuige Industrial Park, Lishui City, Zhejiang Province Applicant after: Zhejiang Zhongguang Electric Appliance Group Co.,Ltd. Address before: 323000 No.96 Yunjing Road, Shuige Industrial Park, Lishui City, Zhejiang Province Applicant before: ZHEJIANG ZHONGGUANG ELECTRIC APPLIANCES Co.,Ltd. |
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