CN204511821U - The lubrication system of compressor - Google Patents
The lubrication system of compressor Download PDFInfo
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- CN204511821U CN204511821U CN201520149880.9U CN201520149880U CN204511821U CN 204511821 U CN204511821 U CN 204511821U CN 201520149880 U CN201520149880 U CN 201520149880U CN 204511821 U CN204511821 U CN 204511821U
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- oil pump
- compressor
- oil
- lubrication system
- fuel tank
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Abstract
The utility model discloses a kind of lubrication system of compressor, comprise fuel tank and by oil circuit be connected with described fuel tank for the main oil pump to described compressor oil-supplying, filter is provided with in described fuel tank, this lubrication system also comprises auxiliary oil pump and relief valve, described auxiliary oil pump is arranged at the position of described oil circuit between described filter and described main oil pump, and the flow of described auxiliary oil pump is greater than the flow of described main oil pump, the filler opening of described relief valve is connected on the oil circuit between described auxiliary oil pump and described main oil pump, the oil outlet of described relief valve is connected with described fuel tank.Adopt the lubrication system of compressor of the present utility model, oil pump can be avoided to produce cavitation phenomenon.
Description
Technical field
The utility model relates to compressor field, particularly relates to a kind of lubrication system of compressor.
Background technique
At present, generally in the 10 years even 20 years oil pump projected life in the lubrication system of compressor, and pump speed is higher, but, under the Environmental Conditions of High aititude, because external pressure is lower than normal ambient pressure, oil pump can produce cavitation phenomenon, its of serious curtailment in life-span.So-called cavitation erosion, namely in the liquid of flowing, if the pressure in somewhere is lower than air separation pressure, the air dissolved in a liquid will be separated, and causes occurring a large amount of bubble in liquid.
Fig. 1 is the schematic diagram that each parts of the lubrication system of compressor of the prior art connect.The main oil pump 5 that the lubrication system of this compressor comprises fuel tank 1 and is connected with the filter 2 in fuel tank 1, when the setting height(from bottom) that compressor is in the Environmental Conditions of High aititude or main oil pump 5 is too high, the filler opening place of main oil pump 5 can be excessive due to degree of vacuum, air is separated from oil, thus produces cavitation erosion.
The harm of cavitation erosion is very large, such as produces vibration & noise, reduces oily pump performance and destroy flow passage components etc.
For the problems referred to above existing in prior art, a kind of lubrication system of new compressor is provided to have great importance.
Model utility content
For solving the problem, the utility model provides a kind of lubrication system of compressor, and it can avoid oil pump to produce cavitation phenomenon.
For achieving the above object, the lubrication system of compressor of the present utility model, comprise fuel tank and by oil circuit be connected with described fuel tank for the main oil pump to described compressor oil-supplying, filter is provided with in described fuel tank, this lubrication system also comprises auxiliary oil pump and relief valve, described auxiliary oil pump is arranged at the position of described oil circuit between described filter and described main oil pump, and the flow of described auxiliary oil pump is greater than the flow of described main oil pump, the filler opening of described relief valve is connected on the oil circuit between described auxiliary oil pump and described main oil pump, the oil outlet of described relief valve is connected with described fuel tank.
Preferably, this lubrication system also comprises the first one-way valve, and it is arranged at the position of described oil circuit between described auxiliary oil pump and described main oil pump, and the filler opening of described relief valve is connected on the oil circuit between described first one-way valve and described main oil pump.
Preferably, this lubrication system also comprises the second one-way valve, and the filler opening of described second one-way valve is connected with described filter, and its oil outlet is connected on the oil circuit between described first one-way valve and described main oil pump.
Preferably, this lubrication system also comprises accumulator, and described accumulator is connected on the oil circuit between described first one-way valve and described main oil pump.
Preferably, described auxiliary oil pump is low speed screw pump.
Preferably, the oil outlet place of described main oil pump is provided with the 3rd one-way valve.
The lubrication system of compressor of the present utility model, by increasing auxiliary oil pump and relief valve, avoids the generation of this lubrication system cavitation phenomenon; Meanwhile, by increasing the fuel feeding branch road of band second one-way valve or increasing accumulator, make when auxiliary oil pump lost efficacy, this lubrication system can also give compressor oil-supplying, avoids compressor oil-free lubrication in the short time.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that each parts of the lubrication system of the compressor of prior art connect;
Fig. 2 is the schematic diagram that each parts of the first embodiment of the lubrication system of compressor of the present utility model connect;
Fig. 3 is the schematic diagram that each parts of the second embodiment of the lubrication system of compressor of the present utility model connect.
Embodiment
Below, by reference to the accompanying drawings, structure of the present utility model and working principle etc. are further described.
First embodiment
Fig. 2 is the schematic diagram that each parts of the first embodiment of the lubrication system of compressor of the present utility model connect.
See Fig. 2, the lubrication system of compressor of the present utility model, comprise fuel tank 1 and by oil circuit (not indicating in figure) be connected with fuel tank 1 for the main oil pump 5 to compressor oil-supplying, be provided with filter 2 in fuel tank 1, this lubrication system also comprises auxiliary oil pump 3 and relief valve 7.Auxiliary oil pump 3 is arranged at the position of oil circuit between filter 2 and main oil pump 5, namely the filler opening of auxiliary oil pump 3 is connected to filter 2, its oil outlet is connected to the filler opening of main oil pump 5, and the flow of auxiliary oil pump 3 is greater than the flow of main oil pump 5, produces negative pressure to avoid the filler opening place of main oil pump 5 and cause cavitation erosion; Wherein, auxiliary oil pump 3 can be chosen as low speed screw pump, empirical tests, and under the environment of High aititude, this auxiliary oil pump 3 also can not produce cavitation phenomenon.The filler opening of relief valve 7 is connected on the oil circuit between auxiliary oil pump 3 and main oil pump 5, the oil outlet of relief valve 7 is connected with fuel tank 1, when on oil circuit between auxiliary oil pump 3 and main oil pump 5, oil mass is too much, unnecessary lubricant oil can be back in fuel tank 1 through relief valve 7.
Preferably, in order to avoid when auxiliary oil pump 3 lost efficacy, oil return in compressor causes compressor oil-free lubrication, this lubrication system also comprises the first one-way valve 4, it is arranged at the position of oil circuit between auxiliary oil pump 3 and main oil pump 5, namely the filler opening of the first one-way valve 4 is connected to the oil outlet of auxiliary oil pump 3, and its oil outlet is connected to the filler opening of main oil pump 5.Now, the filler opening of relief valve 7 should be connected on the oil circuit between the first one-way valve 4 and main oil pump 5, and during to ensure that oil mass on oil circuit is too much, unnecessary lubricant oil is back in fuel tank 1 through relief valve 7.
As further improvement of this embodiment, this lubrication system also comprises the second one-way valve 8, the filler opening of the second one-way valve 8 is connected with filter 2, its oil outlet is connected on the oil circuit between the first one-way valve 4 and main oil pump 5, like this, when auxiliary oil pump 3 lost efficacy, the lubricant oil in fuel tank 1 by the second one-way valve 8 to main oil pump 5 fuel feeding, can avoid compressor oil-free lubrication in the short time.
Preferably, the oil outlet place of main oil pump 5 is provided with the 3rd one-way valve 6, during to avoid oil pump failure, and the oil return in compressor and cause oil-free lubrication.
The working principle of this lubrication system is as follows:
During compressor start, auxiliary oil pump 3 starts prior to main oil pump 5, lubricant oil in fuel tank 1 enters compressor through auxiliary oil pump 3, first one-way valve 4, main oil pump 5 and the 3rd one-way valve 6 successively and lubricates after filter 2 filters, flow due to auxiliary oil pump 3 is greater than the flow of main oil pump 5, when lubricating oil pressure unnecessary on oil circuit reaches the cracking pressure of relief valve 7, unnecessary lubricant oil is back in fuel tank 1 through relief valve 7.
During compressor shutdown, main oil pump 5 should cut out prior to auxiliary oil pump 3, and now unnecessary on oil circuit lubricant oil is also back in fuel tank 1 through relief valve 7.
If auxiliary oil pump 3 lost efficacy, the lubricant oil in fuel tank 1 can enter compressor and lubricate through the second one-way valve 8, main oil pump 5, the 3rd one-way valve 6, avoided compressor oil-free lubrication in the short time.
Second embodiment
Fig. 3 is the schematic diagram that each parts of the second embodiment of the lubrication system of compressor of the present utility model connect.
See Fig. 3, when auxiliary oil pump 3 lost efficacy, except adopting the mode of the fuel feeding branch road increasing band second one-way valve 8, the mode increasing accumulator 9 can also be adopted.As shown in Figure 3, accumulator 9 is connected on the oil circuit between the first one-way valve 4 and main oil pump 5.When machine normally runs, the unnecessary lubricant oil on the oil circuit between auxiliary oil pump 3 and main oil pump 5 can be filled with in accumulator 9, when auxiliary oil pump 3 lost efficacy can not fuel feeding time, accumulator 9 can give main oil pump 5 fuel feeding, avoids compressor oil-free lubrication.
The working principle of this lubrication system is as follows:
During compressor start, auxiliary oil pump 3 starts prior to main oil pump 5, lubricant oil in fuel tank 1 enters compressor through auxiliary oil pump 3, first one-way valve 4, main oil pump 5 and the 3rd one-way valve 6 successively and lubricates after filter 2 filters, flow due to auxiliary oil pump 3 is greater than the flow of main oil pump 5, unnecessary lubricant oil is filled with in accumulator 9, after accumulator 9 is full of, unnecessary lubricant oil is back in fuel tank 1 through relief valve 7 again.
During compressor shutdown, main oil pump 5 should cut out prior to auxiliary oil pump 3, and now unnecessary on oil circuit lubricant oil is also back in fuel tank 1 through relief valve 7.
If auxiliary oil pump 3 lost efficacy, the lubricant oil in accumulator 9 to main oil pump 5 fuel feeding, can enter compressor through the 3rd one-way valve 6 and lubricated, avoided compressor oil-free lubrication in the short time.
In addition; the lubrication system of compressor of the present utility model, also arranges pressure transducer at the filler opening place of main oil pump 5, when the pressure that pressure transducer records is lower than oil pressure map value; machine alarm is also shut down, and avoids auxiliary oil pump 3 and to lose efficacy the compressor oil-free lubrication caused.
Above, be only schematic description of the present utility model, it will be recognized by those skilled in the art that on the basis of not departing from working principle of the present utility model, can make multiple improvement to the utility model, this all belongs to protection domain of the present utility model.
Claims (6)
1. the lubrication system of a compressor, comprise fuel tank and by oil circuit be connected with described fuel tank for the main oil pump to described compressor oil-supplying, filter is provided with in described fuel tank, it is characterized in that, also comprise auxiliary oil pump and relief valve, described auxiliary oil pump is arranged at the position of described oil circuit between described filter and described main oil pump, and the flow of described auxiliary oil pump is greater than the flow of described main oil pump, the filler opening of described relief valve is connected on the oil circuit between described auxiliary oil pump and described main oil pump, the oil outlet of described relief valve is connected with described fuel tank.
2. the lubrication system of compressor as claimed in claim 1, it is characterized in that, also comprise the first one-way valve, it is arranged at the position of described oil circuit between described auxiliary oil pump and described main oil pump, and the filler opening of described relief valve is connected on the oil circuit between described first one-way valve and described main oil pump.
3. the lubrication system of compressor as claimed in claim 2, it is characterized in that, also comprise the second one-way valve, the filler opening of described second one-way valve is connected with described filter, and its oil outlet is connected on the oil circuit between described first one-way valve and described main oil pump.
4. the lubrication system of compressor as claimed in claim 2, it is characterized in that, also comprise accumulator, described accumulator is connected on the oil circuit between described first one-way valve and described main oil pump.
5. the lubrication system of compressor as claimed in claim 1, it is characterized in that, described auxiliary oil pump is low speed screw pump.
6. the lubrication system of compressor as claimed in claim 1, it is characterized in that, the oil outlet place of described main oil pump is provided with the 3rd one-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520149880.9U CN204511821U (en) | 2015-03-16 | 2015-03-16 | The lubrication system of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520149880.9U CN204511821U (en) | 2015-03-16 | 2015-03-16 | The lubrication system of compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204511821U true CN204511821U (en) | 2015-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520149880.9U Active CN204511821U (en) | 2015-03-16 | 2015-03-16 | The lubrication system of compressor |
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| CN (1) | CN204511821U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107527A (en) * | 2019-06-11 | 2019-08-09 | 山东豪迈机械制造有限公司 | Compressor oil-supplying system and compressor oil-supplying method |
| CN112178437A (en) * | 2020-10-09 | 2021-01-05 | 宁波丰特机械设备有限公司 | Self-adaptive lubricating system for driving motor of centrifugal air compressor |
-
2015
- 2015-03-16 CN CN201520149880.9U patent/CN204511821U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107527A (en) * | 2019-06-11 | 2019-08-09 | 山东豪迈机械制造有限公司 | Compressor oil-supplying system and compressor oil-supplying method |
| CN112178437A (en) * | 2020-10-09 | 2021-01-05 | 宁波丰特机械设备有限公司 | Self-adaptive lubricating system for driving motor of centrifugal air compressor |
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