CN208040453U - Natural gas screw rod generating set automatic oil-return device - Google Patents
Natural gas screw rod generating set automatic oil-return device Download PDFInfo
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- CN208040453U CN208040453U CN201820365019.XU CN201820365019U CN208040453U CN 208040453 U CN208040453 U CN 208040453U CN 201820365019 U CN201820365019 U CN 201820365019U CN 208040453 U CN208040453 U CN 208040453U
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- oil
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- eliminator
- catcher
- valve
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Abstract
The utility model discloses a kind of natural gas screw rod generating set automatic oil-return devices, the device includes level-one oil eliminator, two level oil eliminator and oil catcher, it is provided with oil gas pipeline between the level-one oil eliminator and two level oil eliminator, the oil discharge outlet of the level-one oil eliminator and the first oil inlet of oil catcher connect, the oil outlet of the two level oil eliminator and the second oil inlet of oil catcher connect, and the oil export of the oil catcher is connect with the oil return opening of level-one oil eliminator.The utility model may be implemented to carry out automatic oil return respectively to the lubricating oil of level-one oil eliminator filter core side and the lubricating oil of two level oil eliminator filter core side, ensure the recycling of lubricating oil, make natural gas screw expansion generating set normal operation, long-play will not bring lubricating oil into gas downstream pipe network simultaneously, the harm for reducing natural gas line and conveying equipment keeps civil natural gas pipeline more safe and reliable.
Description
Technical field
The utility model is related to the automatic oil-return devices of lubricating oil, automatic in particular to a kind of natural gas screw rod generating set
Oil return apparatus.
Background technology
Natural gas screw expansion generating set is mainly by natural gas screw expander, generator, oil separator, natural gas
The compositions such as post-heater, oil strainer, oil heater, oil catcher, oil pump and circulation line.Natural gas screw expansion generating set
Workflow it is substantially as follows：High-pressure natural gas from upstream enters natural gas screw expander by natural gas, expanded
Electrical power generators are driven in journey, the natural gas decrease temperature and pressure after expansion enters oil separator, gas and oil separation with lubricating oil
Natural gas afterwards is after the heating of natural gas post-heater, into subordinate's city planting ductwork；Most of lubricating oil after gas and oil separation
Oil strainer filtering is first passed through, after being heated using oil heater, natural gas screw expansion is then forced to after oil pump pressurizes
Machine fuel feeding, into lubrication oil circulation.
In the On The Cycle Working Process of lubricating oil other than the cycle of working connection, level-one oil eliminator and two level oil eliminator
Lubricating oil after filter core is by the operation of different time, and lubricating oil can slowly be assembled, if not oil return for a long time, can cause filter core
The lubricating oil of side is brought into natural gas gas exhaust piping, not only results in the reduction of cycle oil mass, influences the normal operation of unit,
And requirement of the country to the oil content in civil natural gas can be not achieved, the use of downstream pipe can be influenced, it is necessary to both sides
Lubricating oil empty back into main road and recycled.
Since the filter core side of level-one oil eliminator and the filter core side filter core of two level oil are different, the lubricants capacity isolated
Also different, while pressure drop is also different, thus both sides can not oil return simultaneously need one to meet the oil return of both sides
Kind can realize the oil return apparatus of level-one oil eliminator and two level oil eliminator filter core side, meet its oil return requirement, without influencing
Natural gas screw expansion generating set utilizes upper application in pressure energy of natural gas.
Invention content
The purpose of this utility model seeks to provide a kind of natural gas screw rod generating set automatic oil-return device, which can
Automatic oil return is carried out respectively with the lubricating oil of lubricating oil and two level oil eliminator filter core side to level-one oil eliminator filter core side, is protected
The recycling for demonstrate,proving lubricating oil, makes natural gas screw expansion generating set normal operation, while long-play will not be lubrication
Oil brings gas downstream pipe network into, reduces the harm of natural gas line and conveying equipment, and civil natural gas pipeline is made more to pacify
It is complete reliable.
To achieve the above object, natural gas screw rod generating set automatic oil-return device provided by the utility model, including one
Grade oil eliminator and two level oil eliminator, oil gas pipeline is provided between the level-one oil eliminator and two level oil eliminator,
It is characterized in that：Further include oil catcher, the oil discharge outlet of the level-one oil eliminator and the first oil inlet of oil catcher connect, institute
Second oil inlet of the oil outlet and oil catcher of stating two level oil eliminator connects, and the oil export of the oil catcher is detached with primary oil
The oil return opening of device connects；
It is provided with the first snorkel between first blow vent of the two level oil eliminator and the first venthole of oil catcher
Road is provided with the second vent line between the second blow vent of the two level oil eliminator and the second venthole of oil catcher.
Further, it is arranged on the pipeline between the oil discharge outlet of the level-one oil eliminator and the first oil inlet of oil catcher
There is first to drain the oil anti-explosion electric ball valve；The oil discharge outlet of the level-one oil eliminator and the first pipe for draining the oil between anti-explosion electric ball valve
Road is provided with the first shut-off valve；It is provided with inlet valve at first oil inlet of the oil catcher.
Further, it is arranged on the pipeline between the oil outlet of the two level oil eliminator and the second oil inlet of oil catcher
There is second to drain the oil anti-explosion electric ball valve, the oil outlet of the two level oil eliminator and second are drained the oil the pipe between anti-explosion electric ball valve
Road is provided with the second shut-off valve.
Further, the first autobalance anti-explosion electric ball valve, the two level oil are provided on first vent line
It is provided with third shut-off valve on pipeline between first blow vent of separator and the first autobalance anti-explosion electric ball valve；It is described
It is provided with the first balanced valve at first venthole of oil catcher.
Further, the second autobalance anti-explosion electric ball valve, the two level oil are provided on second vent line
It is additionally provided with the 4th shut-off valve on pipeline between second blow vent of separator and the second autobalance anti-explosion electric ball valve；Institute
It states and is provided with pressurizing valve at the second venthole of oil catcher.
Further, it is provided with back on the pipeline between the oil export of the oil catcher and the oil return opening of level-one oil eliminator
Oily screw down nonreturn valve.
Further, it is additionally provided with the air inlet being connected to ambient inlet air pipe on the oil catcher, is set on the air inlet
It is equipped with the second balanced valve, pressurization anti-explosion electric regulating valve is additionally provided on the ambient inlet air pipe.
Further, displacement valve, safety valve and blow valve are additionally provided on the oil catcher.
Still further, being additionally provided with pressure gauge for monitoring its internal pressure on the oil catcher and for observing it
The liquid-sighting glass of inside liquid level.
Further, first blow vent and the second blow vent are located at the axial both ends of two level oil eliminator.
Compared with prior art, the utility model has the following advantages that：
First, the natural gas screw rod generating set automatic oil-return device of the utility model is provided with level-one oil eliminator, two
Grade oil eliminator and oil catcher may be implemented to the lubricating oil of level-one oil eliminator filter core side and two level oil eliminator filter core side
Lubricating oil carries out automatic oil return respectively, ensures the recycling of lubricating oil, makes natural gas screw expansion generating set normal operation,
Long-play will not bring lubricating oil into gas downstream pipe network simultaneously, reduce the danger of natural gas line and conveying equipment
Evil keeps civil natural gas pipeline more safe and reliable.
Second, the utility model be designed with first drain the oil anti-explosion electric ball valve, second drain the oil anti-explosion electric ball valve, first from
Dynamic balancing anti-explosion electric ball valve, the second autobalance anti-explosion electric ball valve and pressurization anti-explosion electric regulating valve, can be according to two
The pressure difference and oil content of platform oil carry out oil return adjustment, can be carried out in the case of level-one oil eliminator filter core side lubricating oil is more
Automatic oil return reduces manual operation；The lubricating oil oil content of two level oil eliminator filter core side is few, in the feelings of the first quarter or half a year
It needs to carry out oil return under condition, being separately provided with automatic oil return route for two level oil eliminator carries out automatic oil return, realizes day
The oil return operation of right gas two oil eliminators of screw expansion generating set ensure that the whole cycle of lubricating oil, keep system normal
Operation.
Third, being designed with liquid-sighting glass and pressure gauge on the oil catcher of the utility model, can monitor inside oil catcher in real time
Liquid level and pressure, oil level is observed according to liquid-sighting glass, lubricating oil inside oil catcher can be returned to by pressurization by oil working connection
It is recycled, while can prevent the oil of oil working connection from returning to inside oil catcher again.
Description of the drawings
Fig. 1 is a kind of attachment structure schematic diagram of natural gas screw rod generating set automatic oil-return device；
Fig. 2 is the main structure diagram of oil catcher in Fig. 1；
Fig. 3 is the schematic cross-sectional view along the directions A-A in Fig. 2；
In figure, level-one oil eliminator 1 (oil discharge outlet 1.1, oil return opening 1.2), (oil outlet 2.1, first of two level oil eliminator 2
Blow vent 2.2, the second blow vent 2.3), oil gas pipeline 3, oil catcher 4 (the first oil inlet 4.1, the second oil inlet 4.2, oil export
4.3, the first venthole 4.4, the second venthole 4.5, air inlet 4.6), the first vent line 5, the second vent line 6, first put
Oily anti-explosion electric ball valve 7.1, second drain the oil anti-explosion electric ball valve 7.2, the first shut-off valve 8.1, the second shut-off valve 8.2, third cut
Only valve 8.3, the 4th shut-off valve 8.4, the first autobalance anti-explosion electric ball valve 9.1, the second autobalance anti-explosion electric ball valve
9.2, inlet valve 10.1, the first balanced valve 10.2, pressurizing valve 10.3, the second balanced valve 10.4, displacement valve 10.5, safety valve
10.6, blow valve 10.7, pressure gauge 10.8, liquid-sighting glass 10.9, oil return screw down nonreturn valve 11, pressurization anti-explosion electric regulating valve 12.
Specific implementation mode
The utility model is described in further detail below in conjunction with specific embodiment.
A kind of natural gas screw rod generating set automatic oil-return device as shown in the figure, including level-one oil eliminator 1 and two level
Oil eliminator 2 is provided with oil gas pipeline 3 between level-one oil eliminator 1 and two level oil eliminator 2, further include oil catcher 4, level-one
The oil discharge outlet 1.1 of oil eliminator 1 is connect with the first oil inlet 4.1 of oil catcher 4, oil outlet 2.1 and the collection of two level oil eliminator 2
Second oil inlet 4.2 of oily device 4 connects, and the oil export 4.3 of oil catcher 4 is connect with the oil return opening 1.2 of level-one oil eliminator 1；Two
It is provided with the first vent line 5 between the first blow vent 2.2 and the first venthole 4.4 of oil catcher 4 of grade oil eliminator 2, two
It is provided with the second vent line 6 between the second blow vent 2.3 and the second venthole 4.5 of oil catcher 4 of grade oil eliminator 2.The
One blow vent 2.2 and the second blow vent 2.3 are located at the axial both ends of two level oil eliminator 2.
In above-mentioned technical proposal, between the oil discharge outlet 1.1 of level-one oil eliminator 1 and the first oil inlet 4.1 of oil catcher 4
First is provided on pipeline to drain the oil anti-explosion electric ball valve 7.1；The oil discharge outlet 1.1 of level-one oil eliminator 1 and first is drained the oil anti-explosion electric
It is provided with the first shut-off valve 8.1 on pipeline between dynamic ball valve 7.1；It is provided with inlet valve at first oil inlet 4.1 of oil catcher 4
10.1.Second is provided on pipeline between the oil outlet 2.1 of two level oil eliminator 2 and the second oil inlet 4.2 of oil catcher 4 to put
Oily anti-explosion electric ball valve 7.2, the oil outlet 2.1 of two level oil eliminator 2 and the second pipeline for draining the oil between anti-explosion electric ball valve 7.2
On be provided with the second shut-off valve 8.2.
In above-mentioned technical proposal, the first autobalance anti-explosion electric ball valve 9.1, two level are provided on the first vent line 5
Third is provided on pipeline between first blow vent 2.2 of oil eliminator 2 and the first autobalance anti-explosion electric ball valve 9.1 to cut
Only valve 8.3；It is provided with the first balanced valve 10.2 at first venthole 4.4 of oil catcher 4.Is provided on second vent line 6
Two autobalance anti-explosion electric ball valves 9.2, the second blow vent 2.3 and the second autobalance anti-explosion electric of two level oil eliminator 2
The 4th shut-off valve 8.4 is additionally provided on pipeline between ball valve 9.2；It is provided with pressurizing valve at second venthole 4.5 of oil catcher 4
10.3。
In above-mentioned technical proposal, the pipeline between the oil export 4.3 of oil catcher 4 and the oil return opening 1.2 of level-one oil eliminator 1
On be provided with oil return screw down nonreturn valve 11.The air inlet 4.6 being connected to ambient inlet air pipe, air inlet are additionally provided on oil catcher 4
It is provided with the second balanced valve 10.4 on 4.6, pressurization anti-explosion electric regulating valve 12 is additionally provided on ambient inlet air pipe.On oil catcher 4
It is additionally provided with displacement valve 10.5, safety valve 10.6 and blow valve 10.7,10.8 and of pressure gauge for monitoring its internal pressure
Liquid-sighting glass 10.9 for observing its inside liquid level.
The operation principle of the utility model is as follows：
Level-one oil eliminator 1 because recirculating oil quantity is relatively more, oil return can it is more frequent, need timing carry out automatic oil return, one
The lubricating oil of grade oil eliminator 1 filter core side automatically turns on first and drains the oil anti-explosion electric ball valve 7.1 when reaching the oil level of setting, make profit
Lubricating oil returns to oil catcher 4, observes 10.9 oil level of liquid-sighting glass of oil catcher 4, and it is explosion-proof that pressurization is opened when oil level reaches setting height
Electric control valve 12 returns to the lubricating oil of 4 the inside of oil catcher the lubricating oil main road of level-one oil eliminator 1, it is explosion-proof to adjust pressurization
Electric control valve 12 progressively closes off pressurization anti-explosion electric regulating valve 12 after oil level drops to setting position, opens first certainly
Dynamic balancing anti-explosion electric ball valve 9.1 makes 4 pressure of oil catcher reach balance again, facilitates next oil return.
Level-one oil eliminator 1 send the recirculating oil quantity to two level oil eliminator 2 few by oil gas pipeline 3, oil return interval time
Can be long, automatic oil return process is as follows：The lubricating oil of 2 filter core side of two level oil eliminator is opened after running up to setting oil content
It opens second to drain the oil anti-explosion electric ball valve 7.2, then oil is returned to by adjusting anti-explosion electric regulating valve 12 of pressurizeing by level-one oil eliminator 1
Working connection, pressurization anti-explosion electric regulating valve 12 is progressively closed off after oil level drops to setting position, it is automatically flat to open second
Weigh anti-explosion electric ball valve 9.2, and the pressure of oil catcher 4 is made to reach balance again, if the space of oil catcher 4 is also enough, two level oil
The lubricating oil of separator 2 returns to after oil catcher 4 profit that oil catcher 4 can also be returned to 1 filter core side lubricating oil of level-one oil eliminator
Lubricating oil returns to the working connection of level-one oil eliminator 1 together, and system circulation is carried out with the lubricating oil of working connection.
Utility model device is by automatic oil return function to lubricating oil and the two level oil of level-one oil eliminator filter core side
The lubricating oil of separator filter core side carries out oil return, ensures the recycling of lubricating oil, makes natural gas screw expansion generating set just
Often operation, while long-play will not bring lubricating oil into gas downstream pipe network, reduce natural gas line and conveying is set
Standby harm keeps civil natural gas pipeline more safe and reliable.
Above description is only a specific implementation of the present invention, it should be pointed out that it is existing that remaining is unspecified
Technology, any technical person familiar with the field is in the technical scope disclosed by the utility model, the variation that can be readily occurred in
Or replace, it should be covered within the scope of the utility model.
Claims (10)
1. a kind of natural gas screw rod generating set automatic oil-return device, including level-one oil eliminator (1) and two level oil eliminator
(2), it is provided with oil gas pipeline (3) between the level-one oil eliminator (1) and two level oil eliminator (2), it is characterised in that：
Further include oil catcher (4), the first oil inlet of the oil discharge outlet (1.1) and oil catcher (4) of the level-one oil eliminator (1)
(4.1) it connects, the oil outlet (2.1) of the two level oil eliminator (2) is connect with the second oil inlet (4.2) of oil catcher (4), institute
The oil export (4.3) for stating oil catcher (4) is connect with the oil return opening (1.2) of level-one oil eliminator (1)；
It is arranged between the first blow vent (2.2) of the two level oil eliminator (2) and the first venthole (4.4) of oil catcher (4)
There are the first vent line (5), the second venthole of the second blow vent (2.3) and oil catcher (4) of the two level oil eliminator (2)
(4.5) the second vent line (6) is provided between.
2. natural gas screw rod generating set automatic oil-return device according to claim 1, it is characterised in that：The primary oil
First is provided on pipeline between the oil discharge outlet (1.1) of separator (1) and the first oil inlet (4.1) of oil catcher (4) to drain the oil
Anti-explosion electric ball valve (7.1)；The oil discharge outlet (1.1) of the level-one oil eliminator (1) is drained the oil anti-explosion electric ball valve (7.1) with first
Between pipeline on be provided with the first shut-off valve (8.1)；It is provided with oil inlet at the first oil inlet (4.1) of the oil catcher (4)
Valve (10.1).
3. natural gas screw rod generating set automatic oil-return device according to claim 1, it is characterised in that：The two level oil
Second is provided on pipeline between the oil outlet (2.1) of separator (2) and the second oil inlet (4.2) of oil catcher (4) to drain the oil
Anti-explosion electric ball valve (7.2), the oil outlet (2.1) of the two level oil eliminator (2) are drained the oil anti-explosion electric ball valve (7.2) with second
Between pipeline on be provided with the second shut-off valve (8.2).
4. natural gas screw rod generating set automatic oil-return device according to claim 1 or 2 or 3, it is characterised in that：It is described
It is provided with the first autobalance anti-explosion electric ball valve (9.1) on first vent line (5), the of the two level oil eliminator (2)
It is provided with third shut-off valve on pipeline between one blow vent (2.2) and the first autobalance anti-explosion electric ball valve (9.1)
(8.3)；It is provided with the first balanced valve (10.2) at the first venthole (4.4) of the oil catcher (4).
5. natural gas screw rod generating set automatic oil-return device according to claim 1 or 2 or 3, it is characterised in that：It is described
It is provided with the second autobalance anti-explosion electric ball valve (9.2) on second vent line (6), the of the two level oil eliminator (2)
It is additionally provided with the 4th shut-off valve on pipeline between two blow vents (2.3) and the second autobalance anti-explosion electric ball valve (9.2)
(8.4)；It is provided with pressurizing valve (10.3) at the second venthole (4.5) of the oil catcher (4).
6. natural gas screw rod generating set automatic oil-return device according to claim 1 or 2 or 3, it is characterised in that：It is described
Oil return is provided on pipeline between the oil export (4.3) of oil catcher (4) and the oil return opening (1.2) of level-one oil eliminator (1) to cut
Only check-valves (11).
7. natural gas screw rod generating set automatic oil-return device according to claim 1 or 2 or 3, it is characterised in that：It is described
It is additionally provided with the air inlet (4.6) being connected to ambient inlet air pipe on oil catcher (4), second is provided on the air inlet (4.6)
Balanced valve (10.4) is additionally provided with pressurization anti-explosion electric regulating valve (12) on the ambient inlet air pipe.
8. natural gas screw rod generating set automatic oil-return device according to claim 1 or 2 or 3, it is characterised in that：It is described
Displacement valve (10.5), safety valve (10.6) and blow valve (10.7) are additionally provided on oil catcher (4).
9. natural gas screw rod generating set automatic oil-return device according to claim 1 or 2 or 3, it is characterised in that：It is described
Be additionally provided on oil catcher (4) pressure gauge (10.8) for monitoring its internal pressure and for observe its inside liquid level regard liquid
Mirror (10.9).
10. natural gas screw rod generating set automatic oil-return device according to claim 1 or 2 or 3, it is characterised in that：Institute
It states the first blow vent (2.2) and the second blow vent (2.3) is located at the axial both ends of two level oil eliminator (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820365019.XU CN208040453U (en) | 2018-03-16 | 2018-03-16 | Natural gas screw rod generating set automatic oil-return device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820365019.XU CN208040453U (en) | 2018-03-16 | 2018-03-16 | Natural gas screw rod generating set automatic oil-return device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208040453U true CN208040453U (en) | 2018-11-02 |
Family
ID=63947236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820365019.XU Active CN208040453U (en) | 2018-03-16 | 2018-03-16 | Natural gas screw rod generating set automatic oil-return device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208040453U (en) |
-
2018
- 2018-03-16 CN CN201820365019.XU patent/CN208040453U/en active Active
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