CN106440521A - Safety oil level operation device for compressors connected in parallel - Google Patents
Safety oil level operation device for compressors connected in parallel Download PDFInfo
- Publication number
- CN106440521A CN106440521A CN201611201007.5A CN201611201007A CN106440521A CN 106440521 A CN106440521 A CN 106440521A CN 201611201007 A CN201611201007 A CN 201611201007A CN 106440521 A CN106440521 A CN 106440521A
- Authority
- CN
- China
- Prior art keywords
- compressor
- oil
- parallel
- electromagnetic valve
- parallel connection
- 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.)
- Pending
Links
- 239000000446 fuel Substances 0.000 claims description 11
- 230000003434 inspiratory effect Effects 0.000 claims description 11
- 238000005303 weighing Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 abstract description 43
- 239000010687 lubricating oil Substances 0.000 abstract description 20
- 239000010725 compressor oil Substances 0.000 description 8
- 238000005057 refrigeration Methods 0.000 description 6
- 235000003642 hunger Nutrition 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000037351 starvation Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 235000015927 pasta Nutrition 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
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
-
- 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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/07—Details of compressors or related parts
- F25B2400/075—Details of compressors or related parts with parallel compressors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/16—Lubrication
-
- 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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/03—Oil level
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The invention relates to a safety oil level operation device for compressors connected in parallel. The device comprises the first compressor, the second compressor and an oil balance pipe, wherein an air suction pipeline of the first compressor and an air suction pipeline of the second compressor are connected in parallel, an exhaust pipeline of the first compressor and an exhaust pipeline of the second compressor are connected in parallel, a crank case of the first compressor communicates with a crank case of the second compressor through the oil balance pipe, the oil balance pipe is provided with a solenoid valve, and oil level sensors are arranged inside the crank cases and are electrically connected to the solenoid valve. Transferring of lubricating oil between the compressors is controlled by opening or closing the solenoid valve, safe operation of the compressors is realized, oil balance is effectively maintained, and the reliability is good.
Description
Technical field
The present invention relates to Compressor Technology field, particularly to a kind of parallel connection compressor Safe Levels running gear.
Background technology
Compressor parallel runs and refers to that more than two refrigeration compressors share air inlet pipe and the method for operation of exhaustor, passes through
Change compressor opens the simple and effective change realizing cooling system amount of number, has energy-conservation, the features such as easy to adjust.
When certain compressor in parallel connection breaks down, other compressors may continue to normal work, and reliability is high；By using letter
Single delayed startup method, makes the compressor of parallel connection start by platform, can effectively mitigate the impact to consumer networks；Compressed by multiple stage
The combination of machine, it is possible to provide multilevel energy adjusts series, the output of unit cold can be matched with actual load demand；Multiple stage is compressed
Machine can differ in size, and thus can achieve that the optimum capacity for load variations is adjusted with more smoothly Dynamic Matching actual load
Section, improves efficiency, save energy.
In refrigeration systems, during compressor operating, must have a small part lubricating oil can continuously from cylinder with
Cold-producing medium is forced out together, enters in the pipeline of refrigeration system.When lubricating oil continuously can not return compressor, it is bound to make
Compressor pasta is become to decline, and exhausted to lubricating oil, compressor oil starvation occurs and burns phenomenon, for making the normal work of each compressor
Make it is necessary to the lubricating oil having q.s balancedly returns to each compressor of unit, oil and return that is, aerofluxuss are taken out of
Oil phase balance.In the refrigeration system of only one compressor, as long as adopting necessary measure, such as set using rational pipeline
Meter, makes each position of refrigeration system form stable distribution of oil mass, and lubricating oil can be smoothly through compressor suction duct and return bent axle
Case, makes compressor keep normal work pasta.But, in parallel using multiple compressors in same refrigeration system, there is profit
Whether lubricating oil equalizes the problem returning each compressor.
In prior art, typically using an oil balance tube, the crankcase of two compressors is being coupled together, this
Although mode can play certain oily counterbalance effect, the compressor of parallel connection respective pressure in running is different, deposits
In pressure differential, cause lubricating oil to be shifted between compressor, destroy oil level balance it is possible to cause in the compressor of parallel connection
One platform scarce oil phenomenon, impact compressor normal use.
Content of the invention
For solving the defect that prior art exists, this patent provides a kind of parallel connection compressor Safe Levels running gear, energy
Enough regulation oil levels in compressor operating in parallel are it is ensured that oil level balances, and then ensure the safe operation of parallel connection compressor.
For this patent, above-mentioned technical problem is so solved：A kind of parallel connection compressor Safe Levels fortune
Luggage is put, including the first compressor, the second compressor and oil balance tube, the air-breathing of described first compressor and the second compressor
Pipeline is connected in parallel, and the first compressor is connected in parallel with the gas exhaust piping of the second compressor, and the first compressor and second is pressed
The crankcase of contracting machine is connected by oil balance tube；Described oil balance tube is provided with electromagnetic valve, is provided with fuel level sensor in crankcase,
Fuel level sensor is electrically connected with the solenoid valve.
When the first compressor and the second compressor obtain electric operation, the first compressor can be detected respectively according to fuel level sensor
With the oil level in the second compressor, when wherein one compressor oil level is too low or too high, open electromagnetic valve, by lubricating oil from oil
The too high compressor in position is transferred in the too low compressor of oil level；When the first compressor and the second compressor oil level are normal, close
Electromagnetic valve, it is to avoid in running, the pressure official post lubricating oil between the first compressor and the second compressor is from the high compression of pressure
Machine is transferred in the low compressor of pressure, destroys oil level balance, thus ensure that the oil level balance of two compressors, and then ensures
Parallel connection compressor safe operation.
Further, the two ends port of described oil balance tube is located at the crankcase of the first compressor and the second compressor respectively
Minimum oil level line on.
The amount of this structural controllability lubricating oil transfer, it is to avoid the too low situation of oil level occurs.
Further, described electromagnetic valve includes being respectively arranged on oil balance tube two ends, first electrically connecting with fuel level sensor
Electromagnetic valve and the second electromagnetic valve.
When wherein one compressor oil starvation, and when another of the pressure ratio of itself is high, opening single electromagnetic valve can not be effective
Lubricating oil is transferred to a high side from the low side of pressure by ground, now needs two electromagnetic valves to be operated it is assumed that neighbouring the
The compressor oil level of two electromagnetic valves is relatively low, then open the first electromagnetic valve, the lubricating oil of another compressor is first transferred to oil flat
In weighing apparatus pipe, it is then shut off the first electromagnetic valve, opens the second electromagnetic valve, lubricating oil is eventually transferred in the relatively low compressor of oil level,
Safe operation for compressor escorts.
Further, described first compressor and the second compressor are R410A compressor.
Further, described suction line include one end be provided with the air suction main of air inlet, the first inspiratory limbs and
Second inspiratory limbs, one end of the first inspiratory limbs is connected with the other end of air suction main, and the other end is connected with the first compressor,
One end of second inspiratory limbs is connected with the other end of air suction main, and the other end is connected with the second compressor.
Further, described gas exhaust piping include one end be provided with the exhaust main of air vent, first exhaust arm and
Second exhaust arm, one end of first exhaust arm is connected with the other end of exhaust main, and the other end is connected with the first compressor,
One end of second exhaust arm is connected with the other end of air suction main, and the other end is connected with the second compressor.
Brief description
Fig. 1 is the structural representation of this patent.
Fig. 2 is the structural representation of this patent another embodiment.
Specific embodiment
Embodiment 1：
A kind of parallel connection compressor Safe Levels running gear as shown in Figure 1, including the first compressor C1, the second compressor C2 with
And oil balance tube 7, the suction line of described first compressor C1 and the second compressor C2 is connected in parallel, the first compressor C1 with
The gas exhaust piping of the second compressor C2 is connected in parallel, and the crankcase 6 of the first compressor C1 and the second compressor C2 passes through oil puts down
Weighing apparatus pipe 7 connects；Described oil balance tube 7 is provided with electromagnetic valve, is provided with fuel level sensor 8, fuel level sensor 8 and electricity in crankcase 6
Magnet valve electrically connects.
When the first compressor C1 and the second compressor C2 obtains electric operation, first can be detected respectively according to fuel level sensor 8
Oil level in compressor C1 and the second compressor C2, when wherein one compressor oil level is too low or too high, opens electromagnetic valve, will
Lubricating oil is transferred to the too low compressor of oil level from the too high compressor of oil level；As the first compressor C1 and the second compressor C2
Oil level is normal, closes electromagnetic valve, it is to avoid the pressure official post profit between the first compressor C1 and the second compressor C2 in running
Lubricating oil is transferred to the low compressor of pressure from the high compressor of pressure, destroys oil level balance, thus ensure that two compressors
Oil level balance, and then ensure that parallel connection compressor safe operation.
The two ends port of described oil balance tube 7 is located at the crankcase 6 of the first compressor C1 and the second compressor C2 respectively
On minimum oil level line.
The amount of this structural controllability lubricating oil transfer, it is to avoid the too low situation of oil level occurs.
Described electromagnetic valve includes the first electromagnetic valve D1 being respectively arranged on oil balance tube 7 two ends, electrically connecting with fuel level sensor 8
With the second electromagnetic valve D2.
When wherein one compressor oil starvation, and when another of the pressure ratio of itself is high, opening single electromagnetic valve can not be effective
Lubricating oil is transferred to a high side from the low side of pressure by ground, needs two electromagnetic valves to proceed as follows：Assume neighbouring the
The compressor oil level of two electromagnetic valve D2 is relatively low, then open the first electromagnetic valve D1, the lubricating oil of another compressor is first transferred to
In oil balance tube 7, close the first electromagnetic valve D1 and followed by open the second electromagnetic valve D2, it is relatively low that lubricating oil is eventually transferred into oil level
In compressor, it is that the safe operation of compressor escorts.
In specific implementation process, described first compressor C1 and the second compressor C2 are R410A compressor.
Described suction line includes one end and is provided with the air suction main 1 of air inlet, the first inspiratory limbs 2 and the second air-breathing
Arm 3, one end of the first inspiratory limbs 2 is connected with the other end of air suction main 1, and the other end is connected with the first compressor C1, the
One end of two inspiratory limbs 3 is connected with the other end of air suction main 1, and the other end is connected with the second compressor C2.
Described gas exhaust piping includes exhaust main 9, first exhaust arm 4 and the second exhaust that one end is provided with air vent
Arm 5, one end of first exhaust arm 4 is connected with the other end of exhaust main 9, and the other end is connected with the first compressor C1, the
One end of two exhaust branch pipes 5 is connected with the other end of air suction main 9, and the other end is connected with the second compressor C2.
Embodiment 2：
As shown in Fig. 2 this embodiment with the difference of embodiment 1 is, be not provided with respectively with the first electromagnetic valve D1, the second electromagnetism
The fuel level sensor 8 of valve D2 electrical connection, but opening of the first electromagnetic valve D1 and the second electromagnetic valve D2 is controlled by external signal
Off status.
Claims (6)
1. a kind of parallel connection compressor Safe Levels running gear, including the first compressor, the second compressor and oil balance tube, institute
The suction line stating the first compressor with the second compressor is connected in parallel, the gas exhaust piping of the first compressor and the second compressor
It is connected in parallel, the first compressor is connected by oil balance tube with the crankcase of the second compressor it is characterised in that described oil is flat
Weighing apparatus pipe is provided with electromagnetic valve, is provided with the fuel level sensor being electrically connected with the solenoid valve in crankcase.
2. a kind of parallel connection compressor Safe Levels running gear according to claim 1 is it is characterised in that described oil balances
The two ends port of pipe is located on the first compressor and the minimum oil level line of crankcase of the second compressor respectively.
3. a kind of parallel connection compressor Safe Levels running gear according to claim 1 is it is characterised in that described electromagnetic valve
Including being respectively arranged on oil balance tube two ends, the first electromagnetic valve electrically connecting with fuel level sensor and the second electromagnetic valve.
4. a kind of parallel connection compressor Safe Levels running gear according to any one of claim 1 ~ 3 is it is characterised in that institute
State the first compressor and the second compressor is R410A compressor.
5. a kind of parallel connection compressor Safe Levels running gear according to claim 4 is it is characterised in that described suction nozzle
Road includes one end and is provided with the air suction main of air inlet, the first inspiratory limbs and the second inspiratory limbs, the first inspiratory limbs
One end is connected with the other end of air suction main, and the other end is connected with the first compressor, and one end of the second inspiratory limbs is total with air-breathing
The other end connection of pipe, the other end is connected with the second compressor.
6. a kind of parallel connection compressor Safe Levels running gear according to claim 4 is it is characterised in that described exhaustor
Road includes one end and is provided with the exhaust main of air vent, first exhaust arm and second exhaust arm, first exhaust arm
One end is connected with the other end of exhaust main, and the other end is connected with the first compressor, and one end of second exhaust arm is total with air-breathing
The other end connection of pipe, the other end is connected with the second compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611201007.5A CN106440521A (en) | 2016-12-22 | 2016-12-22 | Safety oil level operation device for compressors connected in parallel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611201007.5A CN106440521A (en) | 2016-12-22 | 2016-12-22 | Safety oil level operation device for compressors connected in parallel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106440521A true CN106440521A (en) | 2017-02-22 |
Family
ID=58215789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611201007.5A Pending CN106440521A (en) | 2016-12-22 | 2016-12-22 | Safety oil level operation device for compressors connected in parallel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106440521A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024046122A1 (en) * | 2022-08-30 | 2024-03-07 | 谷轮环境科技（苏州）有限公司 | Compressor system and operation method for compressor system |
| US11953246B2 (en) * | 2020-09-30 | 2024-04-09 | Daikin Industries, Ltd. | Compression apparatus |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR8905970A (en) * | 1989-11-16 | 1991-05-21 | Narcizo Osorio Basseggio | MISCIBLE FLUID COMPRESSION SYSTEM AND PROCESS |
| CN2447696Y (en) * | 2000-10-17 | 2001-09-12 | 江苏春兰电器有限公司 | Double-compressor oil-level balancing device |
| KR20050034946A (en) * | 2003-10-10 | 2005-04-15 | 엘지전자 주식회사 | Out door unit of air conditioner with function of opening and shutting uniform-oil pipe |
| CN101451757A (en) * | 2007-11-28 | 2009-06-10 | 海尔集团公司 | Multi-connection air conditioner oil balancing and gas balancing control device |
| CN202117895U (en) * | 2011-07-08 | 2012-01-18 | 珠海格力电器股份有限公司 | Multi-compressor system and oil balancing device thereof |
| US20150276276A1 (en) * | 2014-03-25 | 2015-10-01 | Lennox Industries Inc. | Low ambient temperature operation management |
| CN206291536U (en) * | 2016-12-22 | 2017-06-30 | 广东申菱环境系统股份有限公司 | A kind of parallel connection compressor Safe Levels running gear |
-
2016
- 2016-12-22 CN CN201611201007.5A patent/CN106440521A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR8905970A (en) * | 1989-11-16 | 1991-05-21 | Narcizo Osorio Basseggio | MISCIBLE FLUID COMPRESSION SYSTEM AND PROCESS |
| CN2447696Y (en) * | 2000-10-17 | 2001-09-12 | 江苏春兰电器有限公司 | Double-compressor oil-level balancing device |
| KR20050034946A (en) * | 2003-10-10 | 2005-04-15 | 엘지전자 주식회사 | Out door unit of air conditioner with function of opening and shutting uniform-oil pipe |
| CN101451757A (en) * | 2007-11-28 | 2009-06-10 | 海尔集团公司 | Multi-connection air conditioner oil balancing and gas balancing control device |
| CN202117895U (en) * | 2011-07-08 | 2012-01-18 | 珠海格力电器股份有限公司 | Multi-compressor system and oil balancing device thereof |
| US20150276276A1 (en) * | 2014-03-25 | 2015-10-01 | Lennox Industries Inc. | Low ambient temperature operation management |
| CN206291536U (en) * | 2016-12-22 | 2017-06-30 | 广东申菱环境系统股份有限公司 | A kind of parallel connection compressor Safe Levels running gear |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11953246B2 (en) * | 2020-09-30 | 2024-04-09 | Daikin Industries, Ltd. | Compression apparatus |
| WO2024046122A1 (en) * | 2022-08-30 | 2024-03-07 | 谷轮环境科技（苏州）有限公司 | Compressor system and operation method for compressor system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170222 |