CN106225323A - Refrigeration unit and oil return apparatus thereof - Google Patents
Refrigeration unit and oil return apparatus thereof Download PDFInfo
- Publication number
- CN106225323A CN106225323A CN201610806948.5A CN201610806948A CN106225323A CN 106225323 A CN106225323 A CN 106225323A CN 201610806948 A CN201610806948 A CN 201610806948A CN 106225323 A CN106225323 A CN 106225323A
- Authority
- CN
- China
- Prior art keywords
- oil
- gaseous coolant
- return apparatus
- compressor
- fuel tank
- 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.)
- Granted
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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
- F25B31/004—Lubrication oil recirculating arrangements
-
- 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
Abstract
The invention discloses a kind of refrigeration unit and oil return apparatus thereof, oil return apparatus includes: fuel tank, and the oil level upper position of fuel tank is provided with oil-in and the outlet of the first gaseous coolant, and the first gaseous coolant outlet is connected with the air entry of compressor；Oil-gas Separation parts, Oil-gas Separation parts have cavity structure, and cavity structure includes being positioned at oil pocket and air cavity, and oil pocket is provided with oil-out, and air cavity is provided with mixture intake and the outlet of the second gaseous coolant, and the second gaseous coolant outlet is connected with the air entry of compressor；First injector, is connected with vaporizer and mixture intake；Second injector, is connected with oil-out and oil-in.The oil return apparatus that the present invention provides, each return line can concentrate near fuel tank, even can be directly anchored on fuel tank.Return line span is less, saves bigger space, and vibration resistance preferably, dismounting time be difficult to clashing and breaking return line, it is not necessary to offer the interface of return line on the compressor, reduce sealing difficulty.
Description
Technical field
The present invention relates to technical field of refrigeration equipment, more particularly, it relates to a kind of refrigeration unit and oil return apparatus thereof.
Background technology
The compressor of refrigeration unit is in running, and the parts of lubricating oil in compressor can penetrate into coolant system, and
Accumulate in the vaporizer of refrigeration unit eventually.As not in time by separating of oil out, set heat exchange efficiency and compressor will be affected
Bearing reliability.
For solving problem of oil return, the oil in vaporizer is generally introduced compressor air suction with coolant mixture by prior art
Mouthful, herein, coolant gasification is also siphoned away by compressor, and oil is then deposited in bottom air entry.The most again by return line by bottom
Oily injection to fuel tank, reach to separate the purpose of oil and coolant.
Owing to the air entry position of compressor is higher, and having relatively long distance to fuel tank, return line first causes air entry, then
Causing fuel tank, return line span is big, can take more space and vibration resistance is more weak.During compressor dismounting, return line also holds
Easily broken by compressor.Additionally need to open two interfaces on compressor foundry goods, add machining and measure, and increase compressor
Sealing difficulty.
Therefore, how to avoid causing because arranging return line taking up room more, vibration resistance is more weak, return line is easy
By clashing and breaking and the problem that increases compressor seal difficulty, become those skilled in the art's important technology to be solved and ask
Topic.
Summary of the invention
In view of this, the invention provides a kind of oil return apparatus, each return line can concentrate near fuel tank, even can be straight
Connect and be fixed on fuel tank.Return line span is less, has saved bigger space, and vibration resistance preferably, dismounting time be difficult to
Clashing and breaking return line, it is not necessary to offer the interface of return line on the compressor, reduce sealing difficulty.Present invention also offers
A kind of refrigeration unit including above-mentioned oil return apparatus.
The invention provides the oil return apparatus of a kind of refrigeration unit, including:
Fuel tank, the oil level upper position of described fuel tank is provided with oil-in and the outlet of the first gaseous coolant, described first gas
State refrigerant exit is connected with the air entry of compressor；
Oil-gas Separation parts, described Oil-gas Separation parts have cavity structure, and described cavity structure includes being positioned at its underpart
Oil pocket and be positioned at the air cavity on described oil pocket top, described oil pocket is provided with oil-out, described air cavity be provided with mixture intake and
Second gaseous coolant outlet, described second gaseous coolant outlet is connected with the air entry of compressor；
First injector, is connected with vaporizer and described mixture intake, and described first injector passes through high pressure gas
The mixture of the coolant in vaporizer and oil is introduced to described mixture intake by body；
Second injector, is connected with described oil-out and described oil-in, and described second injector passes through gases at high pressure
Oil in described oil pocket is introduced to described oil-in.
Preferably, described Oil-gas Separation parts are " U " type pipe, and the bottom tube chamber of described " U " type pipe is described oil pocket；Described
First gaseous coolant outlet is connected by the air entry of refrigerant pipe with described compressor, two upper port of described " U " type pipe
It is connected with described refrigerant pipe respectively.
Preferably, described Oil-gas Separation parts are " U " type pipe, and the height of the bottom tube chamber of described " U " type pipe is more than described
The height of the intraluminal oil level in bottom, a upper port of described " U " type pipe passes through refrigerant pipe with the first gaseous coolant outlet
Being connected, another upper port of described " U " type pipe is described second gaseous coolant outlet and is connected with the air entry of compressor
Logical.
Preferably, described Oil-gas Separation parts are straight tube-like structure.
Preferably, described first injector is connected with the interface of condenser with described second injector, with by described
Condenser provides described gases at high pressure.
Preferably, described second gaseous coolant outlet is positioned at the top of described mixture intake.
Preferably, described oil-out is arranged on the bottom of described oil pocket.
Preferably, the first gaseous coolant exit of described fuel tank is provided with oil guard.
Preferably, described oil guard includes at least two-layer oil baffle, and described oil baffle is crisscross arranged to be formed repeatedly
Roundabout gaseous coolant passage.
Preferably, described oil guard also includes leakproof oil net.
Present invention also offers a kind of refrigeration unit, be provided with oil return apparatus, described oil return apparatus is oil return as above
Device.
In the technical scheme that the present invention provides, the first gaseous coolant outlet on the top of fuel tank and the air entry phase of compressor
Connection, owing to the air entry pressure of compressor is the lowest, the gaseous coolant in fuel tank can be inhaled in the air entry of compressor.This
The oil return apparatus that invention provides also includes Oil-gas Separation parts, and these Oil-gas Separation parts are provided with oil pocket and air cavity, and oil pocket is provided with out
Hydraulic fluid port, air cavity is provided with mixture intake and the outlet of the second gaseous coolant, the second gaseous coolant outlet and air entry of compressor
It is connected.First injector passes through gases at high pressure, by the mixture injection of the oil in vaporizer and coolant to Oil-gas Separation parts
Mixture intake, due to air cavity by second gaseous coolant outlet be connected with the air entry of compressor, the suction of compressor
Pressure at QI KOU is the lowest, and the coolant in mixture will be inhaled into the air entry of compressor after gasification, the oil in mixture is then
Precipitating and be flowed in oil pocket, after continuing for some time, the oil in vaporizer is accumulated in the oil pocket of Oil-gas Separation parts, it
After by the second injector, oil is incorporated in fuel tank again, thus reached the purpose of Oil-gas Separation.Being arranged such, this programme exists
When arranging oil pipe, can concentrate near fuel tank, even can be directly anchored on fuel tank.Pipeline span is less, saves more sky
Between, vibration resistance preferably, dismounting time be difficult to clashing and breaking return line, and need not offer on the compressor the interface of return line,
Reduce sealing difficulty.Simultaneously can be using these pipelines as assembly, after being pre-installed in advance, entirety is filled to unit again, it is possible to promote dress
Join efficiency.
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 embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of oil return apparatus in the first embodiment of the present invention；
Fig. 2 is the schematic diagram of oil return apparatus in the second embodiment of the present invention；
In Fig. 1-Fig. 2:
Fuel tank 11, Oil-gas Separation parts the 12, first injector the 13, second injector 14, oil-in 15,
One gaseous coolant outlet 16, oil pocket 17, air cavity 18, oil-out the 19, second gaseous coolant outlet 20, mixture draw
Entrance 21, refrigerant pipe 22, oil baffle 23, leakproof oil net 24.
Detailed description of the invention
The core of this detailed description of the invention is to provide a kind of oil return apparatus, and each return line can concentrate near fuel tank,
Even can be directly anchored on fuel tank.Return line span is less, has saved bigger space, and vibration resistance preferably, tear open
Clashing and breaking return line it is difficult to, it is not necessary to offer the interface of return line on the compressor, reduce sealing difficulty when unloading.This is concrete
The core of embodiment also resides in a kind of refrigeration unit including this oil return apparatus of offer.
Hereinafter, referring to the drawings embodiment is illustrated.Additionally, embodiments illustrated below is not to described in claim
Summary of the invention play any restriction effect.It addition, the full content of the composition represented by example below is not limited to as right
Necessary to the solution of the invention described in requirement.
Refer to Fig. 1 and Fig. 2, the oil return apparatus that this detailed description of the invention provides, including fuel tank 11, Oil-gas Separation parts
12, the first injector 13 and the second injector 14.
Wherein, the oil level upper position of fuel tank 11 is provided with oil-in 15 and the first gaseous coolant outlet 16, the first gaseous state
Refrigerant exit 16 is connected with the air entry of compressor.
It should be noted that the oil level upper position of above-mentioned fuel tank 11, refer to refrigeration unit operationally, in fuel tank 11
Oil mass oil level when reaching maximum.
In the present embodiment, Oil-gas Separation parts 12 have cavity structure, and cavity structure includes oil pocket 17 and air cavity 18, due to
Oil can deposit downwards, and oil pocket 17 is arranged on the bottom of cavity structure, and air cavity 18 is positioned at oil pocket 17 top, and being provided with of oil pocket 17 is fuel-displaced
Mouth 19, for the ease of fuel-displaced, oil-out 19 is preferably provided at the bottom of oil pocket 17, and air cavity 18 is provided with mixture intake 21, oil
Gas mixture enters in air cavity 18 by this mixture inlet, and the oil in gas mixture can flow downward and deposit to oil pocket 17
In.
The top position of mixture intake 21 is provided with the second gaseous coolant outlet 20, the second gaseous coolant outlet 20 and pressure
The air entry of contracting machine is connected.The nouns of locality such as " tops ", " bottom " specifically described herein, is that oil return apparatus is in such as Fig. 1 and Fig. 2
In state time indication.Second gaseous coolant outlet 20 is arranged on the top position of mixture intake 21, can make to isolate
The gas come flows up, oil deposition downwards, it is to avoid oil gas mixes again.
In the technical scheme that the present embodiment provides, the first gaseous coolant outlet 16 on the top of fuel tank 11 and the suction of compressor
QI KOU is connected, and owing to the air entry pressure of compressor is the lowest, the gaseous coolant in fuel tank 11 can be inhaled into the suction of compressor
In QI KOU.
First injector 13 is by gases at high pressure, by the mixture injection of the oil in vaporizer and coolant to Oil-gas Separation portion
The mixture intake 21 of part 12, owing to air cavity 18 is connected with the air entry of compressor by the second gaseous coolant outlet 20,
Pressure at the air entry of compressor is the lowest, and the coolant in mixture will be inhaled into the air entry of compressor, mixing after gasification
Oil in thing then precipitates and is flowed in oil pocket 17, and after continuing for some time, the oil accumulation in vaporizer is in Oil-gas Separation portion
In the oil pocket 17 of part 12, by the second injector 14, oil is incorporated in fuel tank 11 the most again, thus has reached Oil-gas Separation
Purpose.
Being arranged such, this programme, when arranging oil pipe, can concentrate near fuel tank 11, even can be directly anchored to fuel tank 11
On.And pipeline span is less, save more space, vibration resistance preferably, dismounting time be difficult to clashing and breaking return line, be additionally not required to
To offer the interface of return line on the compressor, reduce sealing difficulty.Simultaneously can be the most pre-using these pipelines as assembly
After installing, entirety is filled to unit again, it is possible to promote efficiency of assembling.
In the first embodiment, the Oil-gas Separation parts 12 in this programme specific as follows can state setting.Refer to figure
1, Oil-gas Separation parts 12 can be specially " U " type pipe, and the bottom tube chamber of " U " type pipe is oil pocket 17.Separate from gas mixture
Oil out can amass the bottom tube chamber of full " U " type pipe.
First gaseous coolant outlet 16 of fuel tank 11 is connected with the air entry of compressor by refrigerant pipe 22, " U " type pipe
Two upper port be connected with refrigerant pipe 22 respectively.And, mixture intake 21 is arranged on the side tube section of " U " type pipe, mixed
Gas mixture is incorporated into side tube section by compound intake 21, and oil is deposited on downwards in the bottom tube chamber of " U " type pipe, coolant then to
Upper flowing is exported 20 outflows by the second gaseous coolant.
The technical scheme that the present embodiment provides, only need to arrange a refrigerant pipe 22 can by the gaseous coolant in fuel tank 11 and
Gaseous coolant in " U " type pipe is all incorporated in compressor, and pipeline is arranged simply.
In the second embodiment, refer to Fig. 2, the height of the bottom tube chamber of " U " type pipe, should more than the height of oil level
The height of oil level refers to when refrigeration unit is properly functioning, oil level during oil mass maximum in the bottom tube chamber of " U " type pipe
Highly.It is arranged such, above oil level, yet suffers from some spaces.One upper port of " U " type pipe goes out with the first gaseous coolant
Mouthfuls 16 are connected by refrigerant pipe 22, another upper port of " U " type pipe be the second gaseous coolant outlet 20 and with compressor
Air entry is connected.
So, the gaseous coolant in fuel tank 11 can be first in " U " type pipe, due on the oil level in " U " type pipe
Side yet suffers from some spaces, and the gaseous coolant in fuel tank 11 can arrive the other end through one end of " U " type pipe, draws with mixture
The gaseous coolant that the gas mixture that entrance 21 introduces is separated enters in compressor together.
Certainly, in the present embodiment, above-mentioned Oil-gas Separation parts 12 are alternatively other type of structure.Such as, can be one
Individual straight tube, the bottom of straight tube is oil pocket 17, and top is air cavity 18, and the upper end of straight tube is the second gaseous coolant outlet 20, and lower end sets
Oil-out 19, mixture intake 21 is had to be arranged on the sidewall of straight tube.
In the present embodiment, the first injector 13 and the second injector 14 are all as injection power source using gases at high pressure, should
Gases at high pressure can be provided by condenser, specifically can arrange interface on condenser, will by the pipeline being connected with interface
Gases at high pressure cause the first injector 13 and the second injector 14.
In the preferred version of the present embodiment, the first gaseous coolant at fuel tank 11 exports and is provided with oil guard at 16.By height
After oil is introduced to fuel tank 11 by body of calming the anger, gases at high pressure return in compressor by the first gaseous coolant outlet 16, oil guard
It can be avoided that oil flows back in compressor along with gases at high pressure.
Oil guard can specifically include at least two-layer oil baffle 23, and described oil baffle 23 is crisscross arranged to be formed anti-
Multiple roundabout gaseous coolant passage.Oil baffle 23 is crisscross arranged, and forms the most roundabout gaseous coolant passage, if in gaseous coolant
Being mixed with oil, oil can impinge upon on oil baffle 23, is back in fuel tank 11.Further, in order to improve gear oil effect, gear oil dress
Put and can also include leakproof oil net 24.
This detailed description of the invention additionally provides a kind of refrigeration unit, is provided with oil return apparatus, and this oil return apparatus is performed as described above
Oil return apparatus described in example.Being arranged such, the refrigeration unit that this detailed description of the invention provides, its each return line can concentrate on
Near fuel tank 11, even can be directly anchored on fuel tank 11.Return line span is less, has saved bigger space, and
Vibration resistance preferably, dismounting time be difficult to clashing and breaking return line, it is not necessary to offer the interface of return line on the compressor, reduce close
Envelope difficulty.The derivation of this beneficial effect is similar with the derivation of the beneficial effect that above-mentioned oil return apparatus is brought,
Therefore repeat no more herein.
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 apparent from for those skilled in the art, as defined herein
General Principle can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein and features of novelty phase one
The widest scope caused.
Claims (11)
1. the oil return apparatus of a refrigeration unit, it is characterised in that including:
Fuel tank (11), the oil level upper position of described fuel tank (11) is provided with oil-in (15) and the outlet of the first gaseous coolant
(16), described first gaseous coolant outlet (16) is connected with the air entry of compressor；
Oil-gas Separation parts (12), described Oil-gas Separation parts (12) have cavity structure, and described cavity structure includes being positioned at it
The oil pocket (17) of bottom and be positioned at the air cavity (18) on described oil pocket (17) top, described oil pocket (17) is provided with oil-out (19), institute
State air cavity (18) and be provided with mixture intake (21) and the second gaseous coolant outlet (20), described second gaseous coolant outlet (20)
It is connected with the air entry of compressor；
First injector (13), is connected with vaporizer and described mixture intake (21), and described first injector (13) is led to
Cross gases at high pressure and the mixture of the coolant in vaporizer and oil is introduced to described mixture intake (21)；
Second injector (14), is connected with described oil-out (19) and described oil-in (15), described second injector (14)
By gases at high pressure, the oil in described oil pocket (17) is introduced to described oil-in (15).
2. oil return apparatus as claimed in claim 1, it is characterised in that described Oil-gas Separation parts (12) are " U " type pipe, described
The bottom tube chamber of " U " type pipe is described oil pocket (17)；Described first gaseous coolant outlet (16) passes through refrigerant pipe (22) with described
The air entry of compressor is connected, and two upper port of described " U " type pipe are connected with described refrigerant pipe (22) respectively.
3. oil return apparatus as claimed in claim 1, it is characterised in that described Oil-gas Separation parts (12) are " U " type pipe, described
The height of the bottom tube chamber of " U " type pipe is more than the height of the intraluminal oil level in described bottom, a upper end of described " U " type pipe
Mouth is connected by refrigerant pipe (22) with the first gaseous coolant outlet (16), and another upper port of described " U " type pipe is described
Second gaseous coolant outlet (20) is also connected with the air entry of compressor.
4. oil return apparatus as claimed in claim 1, it is characterised in that described Oil-gas Separation parts (12) are straight tube-like structure.
5. oil return apparatus as claimed in claim 1, it is characterised in that described first injector (13) and described second injector
(14) it is connected with the interface of condenser, to provide described gases at high pressure by described condenser.
6. oil return apparatus as claimed in claim 1, it is characterised in that described second gaseous coolant outlet (20) is positioned at described mixed
The top of compound intake (21).
7. oil return apparatus as claimed in claim 1, it is characterised in that described oil-out (19) is arranged on described oil pocket (17)
Bottom.
8. the oil return apparatus as described in any one of claim 1-7, it is characterised in that the first gaseous coolant of described fuel tank (11)
Outlet (16) place is provided with oil guard.
9. oil return apparatus as claimed in claim 8, it is characterised in that described oil guard includes at least two-layer oil baffle
(23), described oil baffle (23) is crisscross arranged to form the most roundabout gaseous coolant passage.
10. oil return apparatus as claimed in claim 9, it is characterised in that described oil guard also includes leakproof oil net (24).
11. 1 kinds of refrigeration unit, are provided with oil return apparatus, it is characterised in that described oil return apparatus is as arbitrary in claim 1-10
Oil return apparatus described in Xiang.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610806948.5A CN106225323B (en) | 2016-09-05 | 2016-09-05 | Refrigeration unit and its oil return apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610806948.5A CN106225323B (en) | 2016-09-05 | 2016-09-05 | Refrigeration unit and its oil return apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106225323A true CN106225323A (en) | 2016-12-14 |
| CN106225323B CN106225323B (en) | 2018-10-19 |
Family
ID=58074714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610806948.5A Active CN106225323B (en) | 2016-09-05 | 2016-09-05 | Refrigeration unit and its oil return apparatus |
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| Country | Link |
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| CN (1) | CN106225323B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108362049A (en) * | 2018-02-08 | 2018-08-03 | 珠海格力电器股份有限公司 | Oil eliminator and air-conditioner set |
| CN109373650A (en) * | 2018-11-06 | 2019-02-22 | 珠海格力电器股份有限公司 | Ejection system and air-conditioning system |
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| CN203533980U (en) * | 2013-10-15 | 2014-04-09 | 温州市绿康泵阀机械有限公司 | Refrigeration tank |
| CN104359248A (en) * | 2014-11-01 | 2015-02-18 | 李钦源 | Refrigeration oil adjusting system of refrigeration system |
| CN206073507U (en) * | 2016-09-05 | 2017-04-05 | 珠海格力电器股份有限公司 | Refrigeration unit and its oil return apparatus |
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| US20040003608A1 (en) * | 2002-07-08 | 2004-01-08 | Hirotsugu Takeuchi | Ejector cycle |
| CN1189712C (en) * | 2002-07-08 | 2005-02-16 | 株式会社电装 | Injector circulation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108362049A (en) * | 2018-02-08 | 2018-08-03 | 珠海格力电器股份有限公司 | Oil eliminator and air-conditioner set |
| CN109373650A (en) * | 2018-11-06 | 2019-02-22 | 珠海格力电器股份有限公司 | Ejection system and air-conditioning system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106225323B (en) | 2018-10-19 |
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