CN103851832B - A kind of parallel connection compressor oil balancing unit - Google Patents
A kind of parallel connection compressor oil balancing unit Download PDFInfo
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- CN103851832B CN103851832B CN201410131991.7A CN201410131991A CN103851832B CN 103851832 B CN103851832 B CN 103851832B CN 201410131991 A CN201410131991 A CN 201410131991A CN 103851832 B CN103851832 B CN 103851832B
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- compressor
- oil
- inspiratory limbs
- parallel connection
- balance tube
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Abstract
The invention discloses a kind of parallel connection compressor oil balancing unit, including the first compressor and the second compressor, the suction line of the first compressor and the second compressor is connected in parallel, the gas exhaust piping of the first compressor and the second compressor is also connected in parallel, the crankcase of the bottom of the first compressor and the second compressor is connected by oil balance tube, wherein, connected by communicating pipe between suction line with oil balance tube.When the compressor is operating, owing to being provided with communicating pipe between suction line and oil balance tube, oil balance tube is higher than the pressure within two compressors with the pressure of communicating pipe connectivity part, the lubricating oil making two compressors cannot be shifted by oil balance tube, ensure that oil level balances, and then ensure that parallel connection compressor safe operation.
Description
Technical field
The present invention relates to Compressor Technology field, particularly to a kind of parallel connection compressor oil balancing unit.
Background technology
In refrigeration systems sometimes for using multiple compressors simultaneously, therefore, compressor parallel technology exists
Refrigeration industry has obtained increasingly being widely applied.Compressor in parallel has energy adjustment convenience, separate unit
Shutdown maintenance is convenient, low cost and other advantages, and compressor lubricating oil in running is requisite,
Therefore, by two compressor parallels when, it is necessary to solve the oily equilibrium problem between compressor.
In prior art, it is common that using an oil balance tube, the crankcase of two compressors is connected
Come, although this mode can play certain oily counterbalance effect, but owing to there being pressure differential between compressor,
The raw transfer of the fry dried food ingredients that this mode is easily caused between two compressors, thus cause oil level uneven, shadow
Ring the normal use of compressor.
Therefore, a kind of parallel connection compressor oil balancing unit how is provided so that it is after parallel connection compressor,
Lubricating oil can be avoided directly to shift between two compressors when compressor operating, it is ensured that oil level balances,
And then ensureing parallel connection compressor safe operation, the important technology becoming those skilled in the art urgently to be resolved hurrily is asked
Topic.
Summary of the invention
In view of this, the invention provides a kind of parallel connection compressor oil balancing unit, with reach to make its with
After parallel connection compressor, it is possible to avoid lubricating oil directly to turn between two compressors when compressor operating
Move, it is ensured that oil level balances, and then ensure the purpose of parallel connection compressor safe operation.
For achieving the above object, the present invention provides following technical scheme:
A kind of parallel connection compressor oil balancing unit, including the first compressor and the second compressor, described the
One compressor is connected in parallel with the suction line of described second compressor, and described first compressor is with described
The gas exhaust piping of the second compressor is also connected in parallel, described first compressor and described second compressor
The crankcase of bottom is connected by oil balance tube, by even between described suction line and described oil balance tube
Siphunculus connects；
Described oil balance tube two ends are all by U-tube and described first compressor and described second compressor
Being connected, two described U-tube are positioned at the both sides of described oil balance tube and the connectivity part of described communicating pipe.
Preferably, described suction line includes:
Gas-liquid separator, is provided with inlet tube and outlet；
Air suction main, one end connects with described outlet；
Inspiratory limbs, including the first inspiratory limbs and the second inspiratory limbs, described first inspiratory limbs
One end connects with the other end of described air suction main, and the other end connects with described first compressor, and described
One end of two inspiratory limbs connects with the other end of described air suction main, the other end and described second compressor
Connection.
Preferably, one end of described communicating pipe is connected on described inlet tube, and the other end is connected to described oil
On balance pipe.
Preferably, one end of described communicating pipe be connected to described air suction main, described first inspiratory limbs with
And in described second inspiratory limbs, the other end is connected on described oil balance tube.
Preferably, described suction line includes:
Air suction main, one end is provided with air inlet；
Inspiratory limbs, including the first inspiratory limbs and the second inspiratory limbs, described first inspiratory limbs
One end connects with the other end of described air suction main, and the other end connects with described first compressor, and described
One end of two inspiratory limbs connects with the other end of described air suction main, the other end and described second compressor
Connection.
Preferably, one end of described communicating pipe be connected to described air suction main, described first inspiratory limbs with
And in described second inspiratory limbs, the other end is connected on described oil balance tube.
From technique scheme it can be seen that the present invention provide parallel connection compressor oil balancing unit, including
First compressor and the second compressor, the suction line of the first compressor and the second compressor is connected in parallel on one
Rising, the gas exhaust piping of the first compressor and the second compressor is also connected in parallel, the first compressor and second
The crankcase of the bottom of compressor is connected by oil balance tube, wherein, between suction line and oil balance tube
Connected by communicating pipe.When the compressor is operating, due to the company of being provided with between suction line and oil balance tube
Siphunculus, oil balance tube is higher than the pressure within two compressors with the pressure of communicating pipe connectivity part, makes two compressions
The lubricating oil of machine cannot be shifted by oil level weighing apparatus pipe, it is ensured that oil level balances, and then ensure that compression in parallel
Machine safe operation.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to reality
Execute the required accompanying drawing used in example or description of the prior art to be briefly described, it should be apparent that below,
Accompanying drawing in description is only some embodiments of the present invention, for those of ordinary skill in the art,
On the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the parallel connection compressor oil balancing unit that Fig. 1 provides for an embodiment of the present invention；
The structural representation of the parallel connection compressor oil balancing unit that Fig. 2 provides for another kind embodiment of the present invention.
Detailed description of the invention
The invention provides a kind of parallel connection compressor oil balancing unit, to reach to make it compress for parallel connection
After machine, it is possible to avoid lubricating oil directly to shift between two compressors when compressor operating, it is ensured that oil
Position balance, and then ensure the purpose of parallel connection compressor safe operation.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present invention, and
It is not all, of embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under creative work premise, broadly fall into the scope of protection of the invention.
Refer to the knot of the parallel connection compressor oil balancing unit that Fig. 1, Fig. 1 provide for an embodiment of the present invention
Structure schematic diagram.
The invention provides a kind of parallel connection compressor oil balancing unit, including the first compressor C1 and second
Compressor C2, the suction line of the first compressor C1 and the second compressor C2 is connected in parallel, the first pressure
The gas exhaust piping 2 of contracting machine C1 and the second compressor C2 is also connected in parallel, the first compressor C1 and
The crankcase of the bottom of two compressor C2 is connected by oil balance tube 9, wherein, and suction line and oil balance
By connecting communicating pipe 7 between pipe 9.
Compared with prior art, the parallel connection compressor oil balancing unit that the present invention provides, work as compressor operating
Time, owing to being provided with communicating pipe 7 between suction line and oil balance tube 9, oil balance tube 9 and communicating pipe 7
Connectivity part, namely the pressure of A point is higher than the pressure within two compressors, makes the lubricating oil of two compressors
Cannot be shifted by oil level weighing apparatus pipe, it is ensured that oil level balances, and then ensure that parallel connection compressor safe operation.
Suction line can be formed structure by different, such as band gas-liquid separator 6 and without gas-liquid separation
Device 6, when suction line is with gas-liquid separator 6, suction line includes that gas-liquid separator 6, air-breathing are total
Pipe 3 and inspiratory limbs, wherein, gas-liquid separator 6 is provided with inlet tube 5 and outlet 4, air-breathing
House steward 3 one end connects with outlet 4, and inspiratory limbs includes that the first inspiratory limbs 1 and the second air-breathing are propped up
Pipe 8, one end of the first inspiratory limbs 1 connects with the other end of air suction main 3, the other end and the first compression
Machine C1 connects, and one end of the second inspiratory limbs 8 connects with the other end of air suction main 3, the other end and the
Two compressor C2 connections.
When suction line uses the structure with gas-liquid separator 6, the connected mode of communicating pipe 7 is permissible
Having multiple, such as one end of communicating pipe 7 is connected on inlet tube 5, and the other end is connected to oil balance tube 9
On；Or, one end of connecting tube is connected to air suction main the 3, first inspiratory limbs 1 and the second air-breathing is propped up
On in pipe 8 one, the other end is connected on oil balance tube 9.
In actual applications, suction line can be without gas-liquid separator 6, and at this moment, suction line includes
Air suction main 3 and inspiratory limbs, wherein, air suction main 3 one end is provided with air inlet；Inspiratory limbs
Including the first inspiratory limbs 1 and the second inspiratory limbs 8, one end of the first inspiratory limbs 1 and air suction main
The other end connection of 3, the other end and the first compressor C1 connection, one end of the second inspiratory limbs 8 and suction
The other end connection of gas house steward 3, the other end and the second compressor C2 connection.
In the case of suction line does not comprise gas-liquid separator 6, its one end can be connected by communicating pipe 7
On in air suction main the 3, first inspiratory limbs 1 and the second inspiratory limbs 8 one, the other end connects
On oil balance tube 9.
In order to preferably stop the lubricating oil between two compressors to be exchanged by oil balance tube, refer to figure
The structural representation of 2, Fig. 2 parallel connection compressor oil balancing units provided for another kind embodiment of the present invention,
In another kind embodiment of the present invention, oil balance tube 9 two ends are all by U-tube and the first compressor C1
And second compressor C2 be connected, two U-tube are positioned at connectivity part A of oil balance tube 9 and communicating pipe 7
The both sides of point, so, the gas of connectivity part A point flows to the first compressor C1 and the second compressor C2
Time can in U-tube store lubricating oil push two compressors respectively to, stop the oil between two compressors
It is better that liquid exchanges.
In this specification, each embodiment uses the mode gone forward one by one to describe, and each embodiment stresses
Being the difference with other embodiments, between each embodiment, identical similar portion sees mutually.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses
The present invention.Multiple amendment to these embodiments will be aobvious and easy for those skilled in the art
See, generic principles defined herein can without departing from the spirit or scope of the present invention,
Realize in other embodiments.Therefore, the present invention is not intended to be limited to the embodiments shown herein,
And it is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (6)
1. a parallel connection compressor oil balancing unit, including the first compressor (C1) and the second compressor
(C2), described first compressor (C1) is connected in parallel on the suction line of described second compressor (C2)
Together, the gas exhaust piping (2) of described first compressor (C1) and described second compressor (C2) is the most also
It is linked togather, the crankcase of the bottom of described first compressor (C1) and described second compressor (C2)
Connected by oil balance tube (9), it is characterised in that described suction line and described oil balance tube (9)
Between by communicating pipe (7) connect；
Described oil balance tube (9) two ends are all by U-tube and described first compressor (C1) and described
Second compressor (C2) is connected, and two described U-tube are positioned at described oil balance tube (9) and connect with described
The both sides of the connectivity part of pipe (7).
Parallel connection compressor oil balancing unit the most according to claim 1, it is characterised in that described suction
Air pipe includes:
Gas-liquid separator (6), is provided with inlet tube (5) and outlet (4)；
Air suction main (3), one end connects with described outlet (4)；
Inspiratory limbs, including the first inspiratory limbs (1) and the second inspiratory limbs (8), described first
One end of inspiratory limbs (1) connects with the other end of described air suction main (3), the other end and described the
One compressor (C1) connects, one end of described second inspiratory limbs (8) and described air suction main (3)
The other end connection, the other end connects with described second compressor (C2).
Parallel connection compressor oil balancing unit the most according to claim 2, it is characterised in that described company
One end of siphunculus (7) is connected on described inlet tube (5), and the other end is connected to described oil balance tube (9)
On.
Parallel connection compressor oil balancing unit the most according to claim 2, it is characterised in that described company
One end of siphunculus (7) is connected to described air suction main (3), described first inspiratory limbs (1) and institute
Stating in the second inspiratory limbs (8), the other end is connected on described oil balance tube (9).
Parallel connection compressor oil balancing unit the most according to claim 1, it is characterised in that described suction
Air pipe includes:
Air suction main (3), one end is provided with air inlet；
Inspiratory limbs, including the first inspiratory limbs (1) and the second inspiratory limbs (8), described first
One end of inspiratory limbs (1) connects with the other end of described air suction main (3), the other end and described the
One compressor (C1) connects, one end of described second inspiratory limbs (8) and described air suction main (3)
The other end connection, the other end connects with described second compressor (C2).
Parallel connection compressor oil balancing unit the most according to claim 5, it is characterised in that described company
One end of siphunculus (7) is connected to described air suction main (3), described first inspiratory limbs (1) and institute
Stating in the second inspiratory limbs (8), the other end is connected on described oil balance tube (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410131991.7A CN103851832B (en) | 2014-04-02 | 2014-04-02 | A kind of parallel connection compressor oil balancing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410131991.7A CN103851832B (en) | 2014-04-02 | 2014-04-02 | A kind of parallel connection compressor oil balancing unit |
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| Publication Number | Publication Date |
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| CN103851832A CN103851832A (en) | 2014-06-11 |
| CN103851832B true CN103851832B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410131991.7A Active CN103851832B (en) | 2014-04-02 | 2014-04-02 | A kind of parallel connection compressor oil balancing unit |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024016A (en) * | 2017-04-25 | 2017-08-08 | 广东志高暖通设备股份有限公司 | A kind of module water dispenser |
| CN107339826A (en) * | 2017-07-04 | 2017-11-10 | 重庆美的通用制冷设备有限公司 | Compressor assembly and there is its refrigeration system |
| CN107503918A (en) * | 2017-09-19 | 2017-12-22 | 广东志高暖通设备股份有限公司 | A kind of parallel connection compressor and air-conditioning system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1188218A (en) * | 1996-10-28 | 1998-07-22 | 松下冷机株式会社 | Oil level equalizing system for plural compressors |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3229109B2 (en) * | 1994-03-10 | 2001-11-12 | 三菱重工業株式会社 | Refrigeration air conditioner |
| US5634345A (en) * | 1995-06-06 | 1997-06-03 | Alsenz; Richard H. | Oil monitoring system |
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2014
- 2014-04-02 CN CN201410131991.7A patent/CN103851832B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1188218A (en) * | 1996-10-28 | 1998-07-22 | 松下冷机株式会社 | Oil level equalizing system for plural compressors |
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| CN103851832A (en) | 2014-06-11 |
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