CN107288848A - A kind of compressor return oil system - Google Patents
A kind of compressor return oil system Download PDFInfo
- Publication number
- CN107288848A CN107288848A CN201710703716.1A CN201710703716A CN107288848A CN 107288848 A CN107288848 A CN 107288848A CN 201710703716 A CN201710703716 A CN 201710703716A CN 107288848 A CN107288848 A CN 107288848A
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- China
- Prior art keywords
- compressor
- oil
- hole
- air inlet
- plug connector
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/02—Lubrication
- F04B39/0284—Constructional details, e.g. reservoirs in the casing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The invention discloses a kind of compressor return oil system, compressor head is recycled to for the lubricating oil at the oil leak point by compressor head, the compressor return oil system includes the air cleaner being sequentially connected, intake valve, compressor head, oil eliminator, minimum pressure valve and cooler, also include vacuum generator, the vacuum generator is provided with compressed air inlet, air-fuel mixture is exported and vacuum port, oil leaking hole is offered at the oil leak point, the compressed air inlet is connected with the gas outlet of the cooler or the gas outlet of oil eliminator, the air-fuel mixture outlet is connected with the air inlet of the compressor head or the air inlet of intake valve, the vacuum port is connected with the oil leaking hole.Using the compressor return oil system of the present invention, the lubricating oil that compressor head is leaked can be sucked back to compressor head, it is ensured that the unremitting operation of compressor, effectively reduce the maintenance frequency of compressor.
Description
Technical field
The present invention relates to compressor field, in particular to a kind of compressor return oil system.
Background technology
In compressor application, there are various various forms of sealings, to avoid oil leak, even if but in the presence of these
Sealing, still has the possibility of seal fails, causes oil leak, the especially compressor in high rotating speed frequency conversion drive
In, leakage problem is more serious.Once the lubricating oil in seal fails, compressor head will be leaked, need to shut down into
Row maintenance, and maintenance time is longer, maintenance cost increase, causes unnecessary loss.
For the above mentioned problem in the presence of prior art, there is provided a kind of compressor return oil system is significant.
The content of the invention
To solve the above problems, the present invention provides a kind of compressor return oil system, what it can leak compressor head
Lubricating oil is sucked back to compressor head, it is ensured that the unremitting operation of compressor, effectively reduces the maintenance frequency of compressor.
To achieve the above object, compressor return oil system of the invention, for by the oil leak point of compressor head
The lubricating oil at place is recycled to compressor head, air cleaner that the compressor return oil system includes being sequentially connected, intake valve,
Compressor head, oil eliminator, minimum pressure valve and cooler, in addition to vacuum generator, the vacuum generator are provided with
Oil leaking hole, the compressed air are offered at compressed air inlet, air-fuel mixture outlet and vacuum port, the oil leak point
Import is connected with the gas outlet of the cooler or the gas outlet of the oil eliminator, the air-fuel mixture outlet and the pressure
The air inlet of contracting machine head or the air inlet of the intake valve are connected, and the vacuum port is connected with the oil leaking hole.
Preferably, the gas outlet of the gas outlet or the oil eliminator of the compressed air inlet and the cooler it
Between be provided with choke valve.
Preferably, check valve is provided between the oil leaking hole and vacuum port.
Preferably, the vacuum generator includes housing, the compressed air inlet, air-fuel mixture outlet and vacuum port
On the housing, be formed with the chamber mixed for the compressed air and lubricating oil in the housing, the chamber with
It is plugged with the first plug connector and the second plug connector in vacuum port connection, the housing, first plug connector offers the
One through hole, the compressed air inlet is connected with the chamber by first through hole, and second plug connector offers second and led to
Hole, the chamber is connected with air-fuel mixture outlet by the second through hole, the first through hole and the mutual centering of the second through hole,
And the aperture of second through hole is not less than the aperture of the first through hole.
Further, between first plug connector and the second plug connector and the housing it is interference fit.
Further, the material of first plug connector and the second plug connector is copper.
Further, the material of the housing is aluminium.
The compressor return oil system of the present invention, the high pressure air come out using compressor through first through hole spray with
Negative pressure is formed at vacuum port, so that the lubricating oil of compressor leakage is sucked in the chamber of vacuum generator, and and compressed air
Sprayed after mixing through the second through hole, finally by air-fuel mixture outlet return to compressor head, it is ensured that compressor can be in sealing
Part can also be run without interruption in the case of failing, and can effectively reduce the number of times of maintenance, shorten the maintenance service cycle, reduce visitor
Lose at family.
Brief description of the drawings
Fig. 1 is a kind of structural representation of embodiment of the compressor return oil system of the present invention；
Fig. 2 is the structural representation of the another embodiment of the compressor return oil system of the present invention；
Fig. 3 is the structural representation of vacuum generator in the present invention.
Embodiment
Below, with reference to accompanying drawing, structure and operation principle of the present invention etc. are further described.
Fig. 1 shows a kind of structural representation of embodiment of the compressor return oil system of the present invention, and Fig. 2 shows this
The structural representation of the another embodiment of the compressor return oil system of invention, wherein, bold portion represents gas circuit, dotted line part
Divide and represent oil circuit.
Referring to Fig. 1, Fig. 2, compressor return oil system of the invention, at the oil leak point by compressor head 3
Lubricating oil be recycled to compressor head 3, its air cleaner 1 for including being sequentially connected, intake valve 2, compressor head 3, oil
Separator 4, minimum pressure valve 5 and cooler 6, air enter compressor machine after the filtering of air cleaner 1 through intake valve 2
First 3, the compression of air is realized, the air after compression carries out Oil-gas Separation by oil eliminator 4 again, and the lubricating oil separated enters
Enter oil piping system, and the compressed air obtained after separating is then cooled down through minimum pressure valve 5 into cooler 6, is finally given
Pure high pressure air.
During compressor operating, because the failure of seal can cause the phenomenon of oil leak to happen occasionally, because
This, in order to not influence the normal operation of compressor, can open up oil leaking hole at the oil leak point of compressor head 3, in leakage
Oil return circuit is set between oilhole and compressor head 3.Hereafter with the flange connections between compressor head 3 and motor 7
Exemplified by generation oil leak, to describe the structure and operation principle of compressor return oil system of the invention in detail, it is clear that should
Oil return system is equally applicable at compressor other oil leaks.
Specifically, as depicted in figs. 1 and 2, the oil leak point 11 of compressor head 3 is located at compressor head 3 and electricity
Between machine 7, the lubricating oil recycling to will leak out can open up oil leaking hole (figure to compressor head 3 at oil leak point 11
Not shown in).The compressor return oil system also includes vacuum generator 8, and the vacuum generator 8 includes compressed air inlet
8011st, air-fuel mixture outlet 8012 and vacuum port 8013, wherein, the gas outlet of compressed air inlet 8011 and cooler 6 is (in figure
Do not indicate) or the gas outlet (not indicated in figure) of oil eliminator 4 be connected, air-fuel mixture outlet 8012 is with compressor head 3
The air inlet (not indicated in figure) of air inlet (not indicated in figure) or intake valve 2 is connected, vacuum port 8013 and above-mentioned oil leaking hole
It is connected.
Fig. 1 is a kind of structural representation of embodiment of the compressor return oil system of the present invention, wherein, compressed air is entered
Mouth 8011 is connected with the gas outlet of cooler 6, and air-fuel mixture outlet 8012 is connected with the air inlet of compressor head 3；Fig. 2 is this
The structural representation of the another embodiment of the compressor return oil system of invention, wherein, compressed air inlet 8011 and oil
Gas outlet from device 4 is connected, and air-fuel mixture outlet 8012 is connected with the air inlet of intake valve 2.As shown in Figure 1 and Figure 2, when by cold
But the high pressure air that the gas outlet of device 6 or the gas outlet of oil eliminator 4 come out is sucked very from compressed air inlet 8011
After empty generator 8, negative pressure can be formed at vacuum port 8013 so that the lubricating oil come out by oil leaking hole can be entered by vacuum port 8013
Vacuum generator 8 is simultaneously mixed with the high pressure air come in by compressed air inlet 8011, together by oil gas after air-fuel mixture
The air inlet of air inlet or intake valve 2 of the mixed export 8012 through compressor head 3 is back to compressor head 3.
Obviously, the compressed air inlet 8011 of vacuum generator 8 is also connected to other compressed air gas sources.In addition,
The connected mode of vacuum generator 8 is in addition to two kinds of embodiments as shown in Figure 1 and Figure 2, it should be apparent that, there can also be other
Connected mode, for example, compressed air inlet 8011 is connected with the gas outlet of cooler 6, air-fuel mixture outlet 8012 and intake valve 2
Air inlet be connected；Or compressed air inlet 8011 is connected with the gas outlet of oil eliminator 4, air-fuel mixture outlet 8012 and pressure
The air inlet of contracting machine head 3 is connected.
As shown in figure 3, vacuum generator 8 include housing 801, compressed air inlet 8011, air-fuel mixture outlet 8012 with
And vacuum port 8013 is on housing 801.
Specifically, the chamber 802 mixed for compressed air and lubricating oil, chamber 802 and vacuum port are formed with housing 801
The first plug connector 803 and the second plug connector 804 are plugged with 8013 connections, housing 801, the first plug connector 803 offers first
Through hole 8031, compressed air inlet 8011 is connected with chamber 802 by first through hole 8031, and the second plug connector 804 offers
Two through holes 8041, chamber 802 is connected with air-fuel mixture outlet 8012 by the second through hole 8041.Wherein, the He of first through hole 8031
The mutual centering of second through hole 8041, and aperture of the aperture not less than first through hole 8031 of the second through hole 8041.As shown in figure 3,
Compressed air inlet 8011 and the internal diameter of air-fuel mixture outlet 8012 are more than the aperture of the second through hole 8041.
Preferably, it is interference fit between the first plug connector 803 and the second plug connector 804 and housing 801.Further, since
Compressor lubricant oil is high-temp liquid, therefore, and housing 801, the first plug connector 803 and the second plug connector 804 can use resistance to height
The material of temperature, for example, the material of the optional aluminium of the material of housing 801, the first plug connector 803 and the second plug connector 804 can select
Copper.
Referring to Fig. 3 and with reference to Fig. 1, Fig. 2, the operation principle of the vacuum generator 8 with said structure is：By cooler 6
Gas outlet or the high pressure air that comes out of gas outlet of oil eliminator 4 enter housing 801 from compressed air inlet 8011
It is interior, and sprayed at a high speed through first through hole 8031, jet is formed, volume is produced in chamber 802 and inhales flowing so that in chamber 802
Air is constantly sucked away, so that the pressure in chamber 802 is down to below atmospheric pressure, forms negative pressure, and then cause by leaking
The lubricating oil that oilhole comes out can be mixed in the intake chamber 802 of vacuum port 8013 and with high pressure air, gas mixture with
Sprayed by the second through hole 8041, pressure is raised with the reduction of flow velocity so that lubricating oil is with high pressure air by oil
The air inlet of air inlet or intake valve 2 of the gas mixed export 8012 through compressor head 3 is back to compressor head 3.
In order to avoid the waste of compressed air, as shown in figure 1, can be in the gas outlet of cooler 6 and the pressure of vacuum generator 8
Choke valve 9 is set between contracting air intlet 8011, or, as shown in Fig. 2 in the gas outlet of oil eliminator 4 and vacuum generator 8
Compressed air inlet 8011 between set choke valve 9 so that only Partial shrinkage air be utilized into vacuum generator 8.
Be back to oil leaking hole for the lubricating oil of prevent leakage, can oil leaking hole and vacuum generator 8 vacuum port 8013
Between set check valve 10.
The compressor return oil system of the present invention, the high pressure air come out using compressor is sprayed through first through hole 8031
To form negative pressure at vacuum port 8013, so that the lubricating oil that compressor head 3 is leaked sucks the chamber of vacuum generator 8
In 802, and sprayed through the second through hole 8041 after being mixed with compressed air, compressor is finally back to by air-fuel mixture outlet 8012
Head 3, it is ensured that compressor also can without interruption be run in the case of seal fails, can effectively reduce time of maintenance
Number, shortens the maintenance service cycle, reduces client's loss.
Certainly, the vacuum generator played a major role in compressor return oil system of the invention can also use other routines
Vacuum generator, to realize that the lubricating oil for leaking compressor head is recycled to the purpose of compressor head.
More than, it is only the schematic description of the present invention, it will be recognized by those skilled in the art that in the work without departing from the present invention
Make on the basis of principle, a variety of improvement can be made to the present invention, this belongs to protection scope of the present invention.
Claims (7)
1. a kind of compressor return oil system, compressor is recycled to for the lubricating oil at the oil leak point by compressor head
Head, it is characterised in that the compressor return oil system include be sequentially connected air cleaner, intake valve, compressor head,
Oil eliminator, minimum pressure valve and cooler, in addition to vacuum generator, the vacuum generator enter provided with compressed air
Mouthful, air-fuel mixture outlet and vacuum port, offer oil leaking hole at the oil leak point, the compressed air inlet with it is described
The gas outlet of cooler or the gas outlet of the oil eliminator are connected, the air-fuel mixture outlet and the compressor head
The air inlet of air inlet or the intake valve is connected, and the vacuum port is connected with the oil leaking hole.
2. compressor return oil system as claimed in claim 1, it is characterised in that the compressed air inlet and the cooler
Gas outlet or the oil eliminator gas outlet between be provided with choke valve.
3. compressor return oil system as claimed in claim 1, it is characterised in that provided with single between the oil leaking hole and vacuum port
To valve.
4. compressor return oil system as claimed in claim 1, it is characterised in that the vacuum generator includes housing, described
Compressed air inlet, air-fuel mixture outlet and vacuum port are formed with for the pressure on the housing in the housing
Contracting air and the chamber of lubricating oil mixing, the chamber are connected with the vacuum port, and the first plug connector is plugged with the housing
With the second plug connector, first plug connector offers first through hole, and the compressed air inlet and the chamber pass through first
Through hole is connected, and second plug connector offers the second through hole, and the chamber and air-fuel mixture outlet pass through the second through hole
Connection, the first through hole and the mutual centering of the second through hole, and the aperture of second through hole is not less than the first through hole
Aperture.
5. compressor return oil system as claimed in claim 4, it is characterised in that first plug connector and the second plug connector with
It is interference fit between the housing.
6. compressor return oil system as claimed in claim 4, it is characterised in that first plug connector and the second plug connector
Material is copper.
7. compressor return oil system as claimed in claim 4, it is characterised in that the material of the housing is aluminium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710703716.1A CN107288848A (en) | 2017-08-16 | 2017-08-16 | A kind of compressor return oil system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710703716.1A CN107288848A (en) | 2017-08-16 | 2017-08-16 | A kind of compressor return oil system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107288848A true CN107288848A (en) | 2017-10-24 |
Family
ID=60106233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710703716.1A Pending CN107288848A (en) | 2017-08-16 | 2017-08-16 | A kind of compressor return oil system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107288848A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299979A (en) * | 2015-10-15 | 2016-02-03 | 海信（山东）空调有限公司 | Oil-returning control method and oil-returning device for compressor as well as air conditioner |
| CN205025723U (en) * | 2015-09-16 | 2016-02-10 | 佛山市南海区丹威精密机械有限公司 | Automatic oil return device of compressor |
| CN205669487U (en) * | 2016-06-08 | 2016-11-02 | 上海优耐特斯压缩机有限公司 | External oil sealing leaked oil recovering device |
| CN106468255A (en) * | 2015-08-19 | 2017-03-01 | 苏州寿力气体设备有限公司 | The oil circuit regulating system of compressor and compressor |
-
2017
- 2017-08-16 CN CN201710703716.1A patent/CN107288848A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106468255A (en) * | 2015-08-19 | 2017-03-01 | 苏州寿力气体设备有限公司 | The oil circuit regulating system of compressor and compressor |
| CN205025723U (en) * | 2015-09-16 | 2016-02-10 | 佛山市南海区丹威精密机械有限公司 | Automatic oil return device of compressor |
| CN105299979A (en) * | 2015-10-15 | 2016-02-03 | 海信（山东）空调有限公司 | Oil-returning control method and oil-returning device for compressor as well as air conditioner |
| CN205669487U (en) * | 2016-06-08 | 2016-11-02 | 上海优耐特斯压缩机有限公司 | External oil sealing leaked oil recovering device |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171024 |
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| RJ01 | Rejection of invention patent application after publication |