CN206399027U - A kind of parallel compressor oil return device - Google Patents
A kind of parallel compressor oil return device Download PDFInfo
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- CN206399027U CN206399027U CN201621212443.8U CN201621212443U CN206399027U CN 206399027 U CN206399027 U CN 206399027U CN 201621212443 U CN201621212443 U CN 201621212443U CN 206399027 U CN206399027 U CN 206399027U
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- compressor
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- oil return
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- scavenge
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Abstract
A kind of simple in construction, low, effect of manufacturing process requirement of the utility model embodiment offer is reliable, the parallel compressor oil return device that fault rate is low, cost is low.A kind of technical scheme of parallel compressor oil return device of the utility model embodiment includes：At least two compressors, exhaust main and return-air house steward are connected with the blast pipe and muffler of compressor every described respectively, so that each compressor parallel connection, every compressor is provided with oil return opening, and the oil eliminator being connected with the exhaust main is also connected with oil return opening each described respectively；It is additionally provided with oily Balanced interface on every compressor, and each described muffler is provided with scavenge oil pump, the oily Balanced interface of the scavenge oil pump of every compressor respectively with compressor remaining described is connected.
Description
Technical field
The utility model is related to compressor application technical field, and in particular to a kind of parallel compressor oil return device.
Background technology
At present, multiple compressors parallel connection is widely used in same refrigeration system, because it can widen refrigeration system
Range of capacity, reduce starting current, extend compressor service life, moreover it is possible to significantly simplify system, reduction invest into
This.But, in parallel using multiple compressors in same refrigeration system, can there is refrigeration oil smoothly return to each compressor
The problem of.
Therefore, in refrigeration systems, the measure typically taken has：
(1) the larger oil equalizing pipe of caliber and the less balance pipe of caliber are connected between two compressor housings；Or herein
On the basis of an oil eliminator is set up on the blast pipe of every compressor, after most of refrigeration oil is separated through oil eliminator, lead to
Over-subtraction dabbing tubule flow returns compressor suction duct, to reduce the oil mass for bringing system pipeline and evaporator into, and makes each compressor chamber
It is oily.This equal oil applies in general to the compressor of physical dimension identical two occasion used in parallel.When compressor is more than two
During platform, each compressor chamber connects thick oil equalizing pipe and balance pipe, can not only be made troubles to production, transport, repair, changes and match somebody with somebody
Part is also extremely inconvenient, and when two compressor volumes are different, to ensure that pasta is consistent, it is desirable to the setting height(from bottom) of compressor
It is inconsistent, so bring difficulty to installing.
(2) oil eliminator is set on each compressor exhaust pipe, and oil eliminator connects and formed with the magnetic valve of setting again
Oil way balance pipe, then by the built-in oil surface sensor of compressor come information control the opening and closing of magnetic valve, to control refrigeration oil
Pasta.When compressor rich oil, correspondence electromagnetism valve closure is opened, the refrigeration oil in preceding oil eliminator will be compressed backward during oil starvation
Machine fuel feeding, vice versa.But this method needs to propose to set in compressor to manufacturer ability after oil surface sensor requirement real
Existing, while needing to use cooperatively with magnetic valve, its reliability depends on the quality of oil surface sensor and magnetic valve, thus makes cost
Significantly lifted.
Utility model content
For shortcoming present in above-mentioned prior art, the utility model embodiment provides a kind of simple in construction, manufacture work
The low, effect of skill requirement is reliable, the parallel compressor oil return device that fault rate is low, cost is low.
A kind of technical scheme of parallel compressor oil return device of the utility model embodiment includes：
The blast pipe and muffler of at least two compressors, exhaust main and return-air house steward respectively with compressor every described
Connection so that each compressor parallel connection, it is characterised in that
Every compressor is provided with oil return opening, the oil eliminator being connected with the exhaust main also respectively with each institute
State oil return opening connection；
Oily Balanced interface is additionally provided with every compressor, and each described muffler is provided with scavenge oil pump, every institute
The oily Balanced interface of the scavenge oil pump of compressor respectively with compressor remaining described is stated to be connected.
It is preferred that, in the technical scheme of above-mentioned parallel compressor oil return device,
The oil eliminator is connected with oil return opening each described by oil return capillary.
It is preferred that, in the technical scheme of above-mentioned parallel compressor oil return device,
The position of the oil return opening of every compressor is higher than the position of the oily Balanced interface.
It is preferred that, in the technical scheme of above-mentioned parallel compressor oil return device,
The compressor is the combination of frequency-changeable compressor or invariable frequency compressor or both.
It is using the beneficial effect of above-mentioned technical proposal：
Measure is distributed by two-stage dynamic equilibrium, it is ensured that parallel connection compressor oil return can be assigned to every pressure uniform balance
Contracting machine, it is ensured that its safe and stable operation, wherein first order dynamic equilibrium oil return measure are the exhaust mains after compressor parallel
Upper setting oil eliminator, and the lubricating oil isolated is evenly distributed to the oil return opening of each compressor by oil return capillary；
Second level dynamic equilibrium oil return measure is to set scavenge oil pump on the muffler of every compressor, and the scavenge oil pump per compressor should
It is connected simultaneously with the oily Balanced interface of remaining all compressor, second level dynamic circulation balanced measure is to the requirement of technique level of processing
Low, effect is reliable, will not produce error accumulation.Whole technical scheme is simple in construction, manufacturing process requires that low, cost is low, simultaneously
Movement-less part, fault rate is low, and effect is reliable.
Brief description of the drawings
Fig. 1 is in the utility model embodiment, the quantity of compressor is the structural representation of two；
Fig. 2 is in the utility model embodiment, the quantity of compressor is the structural representation of three.
Embodiment
The utility model embodiment provide a kind of simple in construction, manufacturing process require that low, effect is reliable, fault rate is low, into
This low parallel compressor oil return device.
A kind of parallel compressor oil return device in the present embodiment is specifically included：
At least two compressors, exhaust main and return-air house steward connect with the blast pipe and muffler of every compressor respectively
Connect so that each compressor parallel connection, oil return opening is provided with per compressor, the oil eliminator being connected with exhaust main is also distinguished
It is connected with each oil return opening；Oily Balanced interface is additionally provided with per compressor, and each muffler is provided with scavenge oil pump, every pressure
The scavenge oil pump of contracting machine is connected with the oily Balanced interface of remaining compressor respectively, that is to say, that the scavenge oil pump per compressor is distinguished
It is connected with the oily Balanced interface of non-self compressor.
It should be noted that the type in whole technical scheme for compressor is not limited, can for frequency-changeable compressor or
The combination of invariable frequency compressor or both.
It is using the beneficial effect of above-mentioned technical proposal：
Measure is distributed by two-stage dynamic equilibrium, it is ensured that parallel connection compressor oil return can be assigned to every pressure uniform balance
Contracting machine, it is ensured that its safe and stable operation, wherein first order dynamic equilibrium oil return measure are the exhaust mains after compressor parallel
Upper setting oil eliminator, and the lubricating oil isolated is evenly distributed to the oil return opening of each compressor by oil return capillary；
Second level dynamic equilibrium oil return measure is to set scavenge oil pump on the muffler of every compressor, and the scavenge oil pump per compressor should
It is connected simultaneously with the oily Balanced interface of remaining all compressor, second level dynamic circulation balanced measure is to the requirement of technique level of processing
Low, effect is reliable, will not produce error accumulation.Whole technical scheme is simple in construction, manufacturing process requires that low, cost is low, simultaneously
Movement-less part, fault rate is low, and effect is reliable.
It is described in detail below using the quantity of compressor as two and three.
Referring to Fig. 2, the technical scheme of the parallel compressor oil return device includes：First compressor 2 and the second compressor
6, the blast pipe of the blast pipe of the first compressor 2 and the second compressor 6 is connected with exhaust main, the muffler of the first compressor 2
It is connected with the muffler of the second compressor 6 with return-air house steward, such as figure can be apparent from, the first compressor 2 and the second compression
Machine 6 is connected in parallel；
First compressor 2 is provided with the first oil return opening 3, and the second compressor 6 is provided with the second oil return opening 7, the first oil return opening 3
It is connected respectively by oil return capillary with same oil eliminator 9 with the second oil return opening 7, the oil eliminator 9 is refrigerant and oil
From rear, the oil isolated is delivered to by the first compressor 2 and the second compressor 6 by oil return capillary, the oil eliminator 9 is gone back and arranged
Gas house steward connects,
First compressor 2 is provided with the first oily Balanced interface 4, and the muffler of the first compressor 2 is provided with the first oil return
Pump 1, the structure identical with the first compressor 2 is that the second oily Balanced interface 8 is again provided with the second compressor 6, and the second pressure
The muffler of contracting machine 6 is provided with the second scavenge oil pump 5, because the scavenge oil pump of each compressor is respectively non-self compression with other
The oily Balanced interface connection of machine, so the first scavenge oil pump 1 is connect by the second oil balance of oily equilibration capillary and the second compressor 6
Mouth 8 is connected, and the second scavenge oil pump 5 of the second compressor 6 passes through the first oily Balanced interface of oily equilibration capillary and the first compressor 2
4 connections.
It should be noted that Fig. 2 to embodiment in, first, second be only play two compressors of differentiation,
The effect of oily Balanced interface, oil return opening and scavenge oil pump, without physical meaning.
In the above-mentioned technical solutions, measure is distributed by two-stage dynamic equilibrium, it is ensured that parallel connection compressor oil return can be uniform
Evenly it is assigned to every compressor, it is ensured that its safe and stable operation, wherein first order dynamic equilibrium oil return measure is in compression
An oil eliminator 9 is set on exhaust main after machine is in parallel, and the lubricating oil isolated uniformly is divided by oil return capillary
It is assigned to the first oil return opening 3 and the second oil return opening 7；Second level dynamic equilibrium oil return measure is on the muffler of the first compressor 2
First scavenge oil pump 1 is set, and the inlet port of the first scavenge oil pump 1 is connected with the second oily Balanced interface 8 of the second compressor 6, by the
Lubricating oil in the oil pocket of second compressor 6 higher than the second oily Balanced interface 8 (dead oil position) is pumped into first by two oily Balanced interfaces 8
It is correspondingly, same on the muffler of the second compressor 6 that second scavenge oil pump 5 is set in the muffler of compressor 2, by the first compression
Lubricating oil in the oil pocket of machine 2 higher than the first oily Balanced interface 4 (dead oil position) is pumped into the muffler of the second compressor 6.
In the present embodiment, second level dynamic equilibrium oil return measure is by judging that the oily top surface in the oil pocket of compressor is high
Realized in the position of oily Balanced interface, so oily Balanced interface is dead oil position, the position of oil return opening can be set higher than oil
The position of Balanced interface.
Based on above-mentioned way, the first scavenge oil pump 1 and second time are just utilized between the first compressor 2 and the second compressor 6
Oil pump 5 constitutes a dynamic lubrication oil circulation, it is ensured that be at least not less than dead oil position per compressor oil level, so as to reach profit
The effect of lubricating oil equilibrium assignmen.
As shown in Fig. 2 when the quantity of compressor is three, for 1# compressors, 2# compressors and the 3# compression being connected in parallel
Machine, 1# compressors include the oily Balanced interface of 1# oil return openings, 1# and 1# scavenge oil pumps, and 2# compressors include 2# oil return openings, 2# oil balances
Interface and 2# scavenge oil pumps, 3# compressors include the oily Balanced interface of 3# oil return openings, 3# and 3# scavenge oil pumps, 1# scavenge oil pumps respectively with 2#
The oily Balanced interface connection of oily Balanced interface, 3#, 2# scavenge oil pumps are connected with the oily Balanced interfaces of 1#, the oily Balanced interfaces of 3# respectively, and 3# is returned
Oil pump is connected with the oily Balanced interfaces of 1#, the oily Balanced interfaces of 2# respectively.Above-mentioned technical proposal is equally applicable to returning for every compressor
Oil pump is connected with the oily Balanced interface of remaining all compressor simultaneously.
This programme is similarly applied to the unit in parallel more than 3 compressors, the scavenge oil pump of difference simply per compressor
It should be connected simultaneously with the oily Balanced interface of remaining all compressor, to ensure form dynamic lubrication between all compressors
Oil circulation.
Described above, above example is only to illustrate the technical solution of the utility model, rather than its limitations；Although ginseng
The utility model is described in detail according to previous embodiment, it will be understood by those within the art that：It is still
Technical scheme described in foregoing embodiments can be modified, or which part technical characteristic is equally replaced
Change；And these modifications or replacement, the essence of appropriate technical solution is departed from each embodiment technical scheme of the utility model
Spirit and scope.
Claims (4)
1. a kind of parallel compressor oil return device, including：At least two compressors, exhaust main and return-air house steward respectively with every
Blast pipe and the muffler connection of the compressor so that each compressor parallel connection, it is characterised in that：
Every compressor is provided with oil return opening, and the oil eliminator being connected with the exhaust main each Suo Shu also respectively with returning
Hydraulic fluid port is connected；
Oily Balanced interface is additionally provided with every compressor, and each described muffler is provided with scavenge oil pump, every pressure
The oily Balanced interface of the scavenge oil pump of contracting machine respectively with compressor remaining described is connected.
2. parallel compressor oil return device according to claim 1, it is characterised in that the oil eliminator with described in each
Oil return opening is connected by oil return capillary.
3. parallel compressor oil return device according to claim 1, it is characterised in that the oil return opening of every compressor
Position be higher than the oily Balanced interface position.
4. parallel compressor oil return device according to claim 1, it is characterised in that the compressor compresses for frequency conversion
The combination of machine or invariable frequency compressor or both.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621212443.8U CN206399027U (en) | 2016-11-10 | 2016-11-10 | A kind of parallel compressor oil return device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621212443.8U CN206399027U (en) | 2016-11-10 | 2016-11-10 | A kind of parallel compressor oil return device |
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| Publication Number | Publication Date |
|---|---|
| CN206399027U true CN206399027U (en) | 2017-08-11 |
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ID=59506977
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621212443.8U Active CN206399027U (en) | 2016-11-10 | 2016-11-10 | A kind of parallel compressor oil return device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568217A (en) * | 2016-11-10 | 2017-04-19 | 广州同方瑞风节能科技股份有限公司 | Oil return device for parallel compressor |
| CN110486965A (en) * | 2019-07-17 | 2019-11-22 | 江苏宝奥兰空调设备有限公司 | The refrigeration system and its oil way balance method of oil way balance based on parallel connection compressor |
-
2016
- 2016-11-10 CN CN201621212443.8U patent/CN206399027U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568217A (en) * | 2016-11-10 | 2017-04-19 | 广州同方瑞风节能科技股份有限公司 | Oil return device for parallel compressor |
| CN110486965A (en) * | 2019-07-17 | 2019-11-22 | 江苏宝奥兰空调设备有限公司 | The refrigeration system and its oil way balance method of oil way balance based on parallel connection compressor |
| CN110486965B (en) * | 2019-07-17 | 2022-06-14 | 雅凯热能技术(江苏)有限公司 | Refrigeration system based on oil circuit balance of parallel compressors and oil circuit balance method thereof |
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