CN110206731A - It is a kind of to divide oil system for fuel injection helical lobe compressor - Google Patents
It is a kind of to divide oil system for fuel injection helical lobe compressor Download PDFInfo
- Publication number
- CN110206731A CN110206731A CN201910575187.0A CN201910575187A CN110206731A CN 110206731 A CN110206731 A CN 110206731A CN 201910575187 A CN201910575187 A CN 201910575187A CN 110206731 A CN110206731 A CN 110206731A
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- Prior art keywords
- oil
- compressor
- fuel injection
- eliminator
- divide
- Prior art date
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- Pending
Links
- 238000002347 injection Methods 0.000 title claims abstract description 23
- 239000007924 injection Substances 0.000 title claims abstract description 23
- 239000000446 fuel Substances 0.000 title claims abstract description 22
- 239000003921 oil Substances 0.000 claims abstract description 155
- 239000007788 liquid Substances 0.000 claims abstract description 68
- 239000010687 lubricating oil Substances 0.000 claims abstract description 39
- 238000004062 sedimentation Methods 0.000 claims abstract description 31
- 239000002775 capsule Substances 0.000 claims abstract description 15
- 238000001914 filtration Methods 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000010779 crude oil Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000000341 volatile oil Substances 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/026—Lubricant separation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Divide oil system for fuel injection helical lobe compressor the invention discloses a kind of, the lubricating oil carried secretly in compressed gas for isolating compressor output, this divides oil system to include the first oil eliminator being sequentially communicated, the second oil eliminator, the condenser being connected with the second oil eliminator, the liquid reservoir being connected with condenser, liquid reservoir includes shell, is set in the housing sedimentation component, set on housing bottom for storing the liquid capsule of lubricating oil, sedimentation component includes the sedimentation plate that muti-piece is parallel to each other, the setting that sedimentation plate is tilted down along horizontal direction.It is of the invention a kind of to divide oil system for fuel injection helical lobe compressor, by the way that liquid reservoir is arranged, and the setting sedimentation component in liquid reservoir, enable the mixed liquor of BOG and lubricating oil sedimentation component in further Liquid liquid Separation, lubricating oil is settled down to reservoir bottom, BOG condensate liquid is suspended in above liquid reservoir, is realized the further separation of lubricating oil, is avoided pollution of the lubricating oil to lower system.
Description
Technical field
Divide oil system for fuel injection helical lobe compressor the present invention relates to a kind of.
Background technique
That is Boil Off Gas, refers to cryogenic liquid, such as LNG(-162 DEG C), low temperature propane (- 40~-42 DEG C), low temperature
Alkane (0~-2 DEG C) etc. absorbs in storage tank volatilize after external heat made of gas.As volatilization gas increases in storage tank, store up
Pressure inside the tank constantly rises, for maintain pressure of storage tank in allowed limits, generally require BOG compression be condensed into again liquid or
It is exported after compression.
Compressor is exactly the compressor for compressing BOG, and compressor has oilless (oil free) compressor and fuel injection helical lobe compressor two
Kind, oilless (oil free) compressor is since structure is complicated, higher cost, the application being unfavorable in BOG compressor set；And exhaust end base of oil injection threaded bolt compresses
Although machine structure is simple and at low cost, the lubricating oil in fuel injection helical lobe compressor can be mixed with BOG, can not equally be fitted
For in BOG compressor set.
Therefore a point oil is generally carried out to fuel injection helical lobe compressor by setting two-stage oil eliminator in the prior art, but
It is to select two-stage oil eliminator, separation accuracy can not be completely secured, and when the oil eliminator partial failure of this two-stage, also
It is to have parts of lubricating oil as BOG enters lower system, lower system is polluted, while lubricating oil is under low-temperature condition
Viscosity variation can be generated, causes to deposit.
Summary of the invention
The purpose of the present invention is overcome the deficiencies of the prior art and provide a kind of point oil system for fuel injection helical lobe compressor
System, the lubricating oil for dividing oil system that can be further separated out BOG carrying, avoids pollution of the lubricating oil to lower system.
In order to achieve the above objectives, the technical solution adopted by the present invention is that:
Profit that is a kind of to divide oil system for fuel injection helical lobe compressor, being carried secretly in the compressed gas for isolating compressor output
Lubricating oil, it is described that oil system is divided to include the first oil eliminator and the second oil eliminator being connected, first oil eliminator into
Mouth is connected with the exhaust outlet of the compressor, between the oil discharge outlet of first oil eliminator and the oil return opening of the compressor
Equipped with the first oil return component, the second oil return is equipped between the oil discharge outlet of second oil eliminator and the air entry of the compressor
Component, it is described that oil system is divided to further include the condenser being connected with second oil eliminator, be connected with the condenser
Liquid reservoir, the liquid reservoir includes shell, the sedimentation component that is disposed in the housing, set on the housing bottom for storing
The liquid capsule of the lubricating oil, the sedimentation component include the sedimentation plate that muti-piece is parallel to each other, and the sedimentation plate is along horizontal direction
The setting tilted down.
Preferably, the sedimentation plate is from the horizontal by an angle a, wherein 45 °≤a≤60 °.
Preferably, the liquid reservoir further includes the inlet being set on the shell and liquid outlet, is set to the inlet
Allocation component between the sedimentation component, the allocation component include horizontally disposed distribution plate, are opened in the distribution
Several apertures on plate.
It is further preferred that several array of orifices are arranged on the distribution plate.
Preferably, described that oil system is divided to further include first time that both ends are connected with the liquid capsule and the compressor respectively
Oil pipe, the control valve on first oil return pipe.
It is further preferred that it is described divide oil system further include be set to first oil return pipe on and be located at the control valve and
The first valve group between the compressor.
Preferably, described that oil system is divided to further include the liquid level sensor being connected with first oil eliminator, be wound in
The heat exchanger tube that on the liquid level sensor and both ends are connected with first oil eliminator and the compressor respectively.
Preferably, described that oil system is divided to further include being set between first oil eliminator and second oil eliminator
First cooler.
Preferably, the first oil return component include along first oil eliminator to the direction of the compressor successively
First filter, oil pump, the second cooler and the second filter of connection.
Preferably, the second oil return component includes the second oil return pipe, the second valve group on second oil return pipe.
Due to the application of the above technical scheme, compared with the prior art, the invention has the following advantages: one kind of the invention
Divide oil system for fuel injection helical lobe compressor, by the way that liquid reservoir is arranged, and the setting sedimentation component in liquid reservoir, so that BOG
Further Liquid liquid Separation, lubricating oil it can be settled down to reservoir bottom in sedimentation component with the mixed liquor of lubricating oil, BOG is cold
Lime set is suspended in above liquid reservoir, is realized the further separation of lubricating oil, is avoided pollution of the lubricating oil to lower system.
Detailed description of the invention
Attached drawing 1 is the structural schematic diagram for dividing oil system in specific embodiments of the present invention；
Attached drawing 2 is the schematic cross-section of sedimentation component of the invention；
Attached drawing 3 is the structural schematic diagram of allocation component of the invention.
Wherein: 1, compressor；2, the first oil eliminator；3, the second oil eliminator；4, the first oil return component；4a, the first mistake
Filter；4b, oil pump；4c, the second cooler；4d, the second filter；4e, Oil pump electrical machinery；5, the second oil return component；5a, second time
Oil pipe；5b, the second valve group；6, condenser；7, liquid reservoir；7a, shell；7b, sedimentation component；7b1, sedimentation plate；7c, liquid capsule；7d,
Inlet；7e, liquid outlet；7f, allocation component；7f1, distribution plate；7f2, aperture；8, the first oil return pipe；9, control valve；10,
One valve group；11, liquid level sensor；12, heat exchanger tube；13, the first cooler.
Specific embodiment
The technical solution of the present invention will be further described below with reference to the accompanying drawings.
Ginseng is as shown in figure 1 to 3, a kind of to divide oil system for fuel injection helical lobe compressor, exports for isolating compressor 1
Compressed gas in the lubricating oil carried secretly, here divide oil system to be applied in BOG compressor set.At the air inlet of compressor
Equipped with suction filter, primary filtration is carried out for the gas to feeding, compressor is connected to the motor by shaft coupling and is connect, point oil
System includes the first oil eliminator 2 and the second oil eliminator 3 being connected, the import of the first oil eliminator 2 and the row of compressor 1
Port is connected, and the first oil return component 4, the second oil are equipped between the oil discharge outlet of the first oil eliminator 2 and the oil return opening of compressor 1
The second oil return component 5 is equipped between the oil discharge outlet of separator 3 and the air entry of compressor 1.By the first oil eliminator 2 and secondary
Oil eliminator 3 realizes fuel-displaced 0.1-1PPM.Here, lubricating oil is selected and BOG immiscible lubricating oil, this kind of any row's temperature
Under row pressure, dilution be will not change, it means that only need to control lubricating oil temperature in the reasonable scope, oily viscosity also can
Guarantee on reasonable value, to unit respectively by lubricating component better effect, extends the service life of compressor.
Here, this divides oil system to further include set on the first cooler between the first oil eliminator 2 and the second oil eliminator 3
13.Here the first cooler 13 is gas cooler, for cooling down the BOG gas come out in the first oil eliminator 2, Neng Gouti
The separating effect of high BOG gas and lubricating oil in the second oil eliminator 3.Here the cooling medium in gas cooler is cold
But water.
In the present embodiment, the first oil return component 4 includes successively connecting along the first oil eliminator 2 to the direction of compressor 1
Logical first filter 4a, oil pump 4b, the second cooler 4c and the second filter 4d, here, oil pump 4b passes through Oil pump electrical machinery
4e driving, for pumping the lubricating oil isolated in the first oil eliminator 2 into compressor 1.Here first filter 4a
For crude oil filter, the second filter 4d is essential oil filter, and the second cooler 4c is oil cooler, by crude oil filter and
The double filtration of essential oil filter can be good at the impurity in the lubricating fluid of removal reflux, while by oil cooler to profit
Lubricating oil cools down, can be to protection compressor well.Here, crude oil filter and essential oil filter include mutual
In parallel two, a normal use, one spare, prevents filter damage and leads to system-down, cold in oil cooler
But medium is cooling water.
Second oil return component 5 includes the second oil return pipe 5a, the second valve group 5b on the second oil return pipe 5a.Here
Two valve group 5b include the ball valve being sequentially communicated, filter, liquid-sighting glass, regulating valve and check-valves, pass through the second oil return component 5
Setting, can send the lubricating oil isolated in the second oil eliminator 3 in compressor back to.
This divides oil system to further include the condenser 6 being connected with the second oil eliminator 3, the reservoir being connected with condenser 6
Device 7, liquid reservoir 7 is including shell 7a, the sedimentation component 7b in shell 7a, set on the bottom shell 7a for storing lubricating oil
Liquid capsule 7c.By the way that liquid reservoir 7 is arranged, and the setting sedimentation component 7b in liquid reservoir 7, so that the mixed liquor of BOG and lubricating oil
It further Liquid liquid Separation, lubricating oil can be settled down in 7 bottom of liquid reservoir and storage and liquid capsule 7c in sedimentation component 7b,
BOG condensate liquid is suspended in 7 top of liquid reservoir, realizes the further separation of lubricating oil, avoids dirt of the lubricating oil to lower system
Dye.
Here, this divide oil system further include both ends be connected respectively with liquid capsule 7c and compressor 1 the first oil return pipe 8, set
In the control valve 9 on the first oil return pipe 8, the first valve on the first oil return pipe 8 and between control valve 9 and compressor 1
Group 10.Wherein the first valve group 10 includes filter, liquid-sighting glass, regulating valve and check-valves, and control valve 9 is pneumatic operated valve.Herein, if
Determine an oil return time, after arrival time, control valve 9 is opened, by high-pressure side and low-pressure side pressure difference, by the lubricating oil in liquid capsule 7c
It is pressed into compressor air suction mouth, realizes oil return.Followed by the corresponding relationship of saturation pressure and temperature, by acquiring the first oil return pipe
Temperature data on 8 is converted as pressure, and is compared with the pressure of inspiration(Pi) of compressor 1, if the two is identical, represents the degree of superheat
It loses, closes control valve 9 at this time, terminate oil return.Here oil return time, returning-oil temperature and pressure of inspiration(Pi) can be with operating condition
Difference and change, therefore do not provide specific value herein.
In the present embodiment, sedimentation component 7b includes the sedimentation plate 7b1 that muti-piece is parallel to each other, and settles plate 7b1 along level
The setting that direction tilts down settles plate 7b1 from the horizontal by an angle a here, and settle the horizontal direction of plate 7b1
Two sides are connected on shell 7a, wherein 45 °≤a≤60 °.Here angle a is preferably 45 °.Here, sedimentation plate 7b1 is using shallowly
Layer sedimentation theory carries out further Liquid liquid Separation using the density contrast of compressed medium liquid and lubricating oil.Here, due to choosing
With the lubricating oil immiscible with BOG, in situation similar in saturated vapor pressure, theoretically, incompatible oil product is micro- in gas
Magnitude is lower, i.e., oil and gas separating system has better effect.
In the present embodiment, liquid reservoir 7 further includes the inlet 7d being set on shell 7a and liquid outlet 7e, is set to inlet
Allocation component 7f between 7d and sedimentation component 7b, allocation component 7f include horizontally disposed distribution plate 7f1, are opened in distribution plate
Several aperture 7f2 on 7f1.In on distribution plate 7f1, the peripheral portion of distribution plate 7f1 here connects several aperture 7f2 array arrangements
It is connected on shell 7a.By the setting of allocation component 7f, the mixed liquor into liquid reservoir 7 is enabled to uniformly to flow to sedimentation component
7b improves effect of settling.Here liquid outlet 7e be set to 7 top of liquid reservoir, be staggered oil-enriched layer, it is ensured that feed flow it is substantially clean
Only.
In the present embodiment, oil system is divided to further include the liquid level sensor 11 being connected with the first oil eliminator 2, be wound in
The heat exchanger tube 12 that on liquid level sensor 11 and both ends are connected with the first oil eliminator 2 and compressor 1 respectively.Here heat exchanger tube
12 be wound tube heat exchanger, and one end is connected to the top of the first oil eliminator 2, high in the first oil eliminator 2 for receiving
The BOG gas of temperature and the liquid capsule for winding liquid level sensor 11, and exchange heat with the lubricating oil in liquid capsule, liquid capsule is heated, liquid level is avoided
The gas that lubricating oil in sensor 11 volatilizes condenses and makes the liquid level of 11 feedback error of liquid level sensor.In 12 He of heat exchanger tube
Filter, liquid-sighting glass, regulating valve and check-valves are also communicated between compressor 1.
The course of work of lower the present embodiment is illustrated in detail below: BOG gas is sent into compressor 1, then sequentially enters the
One oil eliminator 2, the first cooler 13, the second oil eliminator 3, condenser 6 and liquid reservoir 7 subsequently complete lubricating oil after point oil
It is stored in liquid capsule 7c, pure BOG liquid takes out from liquid outlet 7e, and timing is opened control valve 9 and will be stored in liquid capsule 7c
Lubricating oil is recycled in compressor 1.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of divide oil system for fuel injection helical lobe compressor, pressed from both sides in the compressed gas for isolating compressor (1) output
The lubricating oil of band, it is described that oil system is divided to include the first oil eliminator (2) and the second oil eliminator (3) being connected, described first
The import of oil eliminator (2) is connected with the exhaust outlet of the compressor (1), the oil discharge outlet of first oil eliminator (2) and
The first oil return component (4), the oil discharge outlet of second oil eliminator (3) and institute are equipped between the oil return opening of the compressor (1)
It states and is equipped with the second oil return component (5) between the air entry of compressor (1), it is characterised in that: is described to divide the oil system to further include and institute
State the condenser (6) that the second oil eliminator (3) is connected, the liquid reservoir (7) being connected with the condenser (6), the reservoir
Device (7) includes shell (7a), the sedimentation component (7b) being set in the shell (7a), is set to being used for for the shell bottom (7a)
The liquid capsule (7c) of the lubricating oil is stored, sedimentation component (7b) includes the sedimentation plate (7b1) that muti-piece is parallel to each other, described heavy
The setting that drop plate (7b1) is tilted down along horizontal direction.
A kind of divide oil system for fuel injection helical lobe compressor 2. according to claim 1, it is characterised in that: the sedimentation
Plate (7b1) is from the horizontal by an angle a, wherein 45 °≤a≤60 °.
A kind of divide oil system for fuel injection helical lobe compressor 3. according to claim 1, it is characterised in that: the reservoir
Device (7) further includes the inlet (7d) being set on the shell (7a) and liquid outlet (7e), is set to the inlet (7d) and institute
The allocation component (7f) between sedimentation component (7b) is stated, the allocation component (7f) includes horizontally disposed distribution plate (7f1), opens
Several apertures (7f2) on the distribution plate (7f1).
A kind of divide oil system for fuel injection helical lobe compressor 4. according to claim 3, it is characterised in that: if described
Dry aperture (7f2) array arrangement is on the distribution plate (7f1).
A kind of divide oil system for fuel injection helical lobe compressor 5. according to claim 1, it is characterised in that: described point of oil
System further include both ends be connected respectively with the liquid capsule (7c) and the compressor (1) the first oil return pipe (8), be set to it is described
Control valve (9) on first oil return pipe (8).
A kind of divide oil system for fuel injection helical lobe compressor 6. according to claim 5, it is characterised in that: described point of oil
System further include be set to first oil return pipe (8) on and first between the control valve (9) and the compressor (1)
Valve group (10).
A kind of divide oil system for fuel injection helical lobe compressor 7. according to claim 1, it is characterised in that: described point of oil
System further includes the liquid level sensor (11) being connected with first oil eliminator (2), is wound in the liquid level sensor
(11) heat exchanger tube (12) that on and both ends are connected with first oil eliminator (2) and the compressor (1) respectively.
A kind of divide oil system for fuel injection helical lobe compressor 8. according to claim 1, it is characterised in that: described point of oil
System further includes set on the first cooler (13) between first oil eliminator (2) and second oil eliminator (3).
A kind of divide oil system for fuel injection helical lobe compressor 9. according to claim 1, it is characterised in that: described first
Oil return component (4) includes the first filtering being sequentially communicated along the direction of first oil eliminator (2) to the compressor (1)
Device (4a), oil pump (4b), the second cooler (4c) and the second filter (4d).
A kind of divide oil system for fuel injection helical lobe compressor 10. according to claim 1, it is characterised in that: described
Two oil return components (5) include the second oil return pipe (5a), the second valve group (5b) on second oil return pipe (5a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910575187.0A CN110206731A (en) | 2019-06-28 | 2019-06-28 | It is a kind of to divide oil system for fuel injection helical lobe compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910575187.0A CN110206731A (en) | 2019-06-28 | 2019-06-28 | It is a kind of to divide oil system for fuel injection helical lobe compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110206731A true CN110206731A (en) | 2019-09-06 |
Family
ID=67795264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910575187.0A Pending CN110206731A (en) | 2019-06-28 | 2019-06-28 | It is a kind of to divide oil system for fuel injection helical lobe compressor |
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| CN (1) | CN110206731A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110671326A (en) * | 2019-11-13 | 2020-01-10 | 山东钜容重工科技有限公司 | Screw type water vapor compressor unit and working method |
| CN113266573A (en) * | 2021-07-07 | 2021-08-17 | 张家港市江南利玛特设备制造有限公司 | Oil injection screw system for high molecular weight gas compression |
| CN114109827A (en) * | 2021-12-08 | 2022-03-01 | 张家港市江南利玛特设备制造有限公司 | Marine BOG compression system with oil-gas separation function and compression method |
| CN114909592A (en) * | 2022-04-20 | 2022-08-16 | 北方工业大学 | Micro-quantity lubricating liquid supply system capable of accurately quantifying for laboratory |
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