CN101799005A - Circulating oil path control system of middle or high pressure oil-injecting screw unit - Google Patents
Circulating oil path control system of middle or high pressure oil-injecting screw unit Download PDFInfo
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- CN101799005A CN101799005A CN 201010152926 CN201010152926A CN101799005A CN 101799005 A CN101799005 A CN 101799005A CN 201010152926 CN201010152926 CN 201010152926 CN 201010152926 A CN201010152926 A CN 201010152926A CN 101799005 A CN101799005 A CN 101799005A
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- Prior art keywords
- oil
- valve
- threaded bolt
- end base
- exhaust end
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- 239000010724 circulating oil Substances 0.000 title claims abstract description 21
- 239000003921 oil Substances 0.000 claims abstract description 216
- 238000002347 injection Methods 0.000 claims description 43
- 239000007924 injection Substances 0.000 claims description 43
- 230000006835 compression Effects 0.000 claims description 34
- 238000007906 compression Methods 0.000 claims description 34
- 239000000314 lubricant Substances 0.000 claims description 32
- 230000008676 import Effects 0.000 claims description 16
- 239000010687 lubricating oil Substances 0.000 claims description 10
- 239000000446 fuel Substances 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 6
- 230000001050 lubricating effect Effects 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 230000006837 decompression Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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Abstract
The invention provides a circulating oil path control system of a middle or high pressure oil-injecting screw unit. The circulating oil path control system of the unit is not only simple, but also ensures the functionality, the practicability and the generality. The circulating oil path control system comprises a two-stage compressed oil-injecting screw main machine, an oil-gas separator and an oil filter assembly and is characterized by also comprising an oil cut-off valve, a pressure reducing valve and a special joint seat; the oil-gas separator is communicated with an inlet of the oil filter assembly through an oil tube; an outlet of the oil filter assembly is connected with an inlet of the oil cut-off valve; an output of the oil cut-off valve is connected with an inlet of the special joint seat; the pressure reducing valve is supported on the special joint seat; a pipeline inside the special joint seat is communicated with a pipeline inside the pressure reducing valve; the external of the special joint seat is respectively connected with a corresponding oil injecting port of the two-stage compressed oil-injecting screw main machine; and a pressure tapping point of an exhaust port on a two-stage main machine of the two-stage compressed oil-injecting screw main machine is conducted with a control switch of the oil cut-off valve.
Description
Technical field
The present invention relates to exhaust end base of oil injection threaded bolt circulating oil path control technique field, be specially a kind of mesohigh exhaust end base of oil injection threaded bolt unit circulating oil path control system.
Background technique
Mesohigh screw rod unit is meant exhaust pressure at 1.8～2.5MPa even the exhaust end base of oil injection threaded bolt unit more than the 3.5MPa, and this unit has following characteristics: one, atm number, high pressure; Two, generally adopt the exhaust end base of oil injection threaded bolt main frame of two stage compression, drive the two-stage main frame by single input shaft.Mix the back compression with gas after lubricant oil sprays into from one-level main frame jet and directly enter the compression of secondary main frame, finally discharge from secondary main exhaust mouth from an one-level main frame row mouthful discharge.Have the compression efficiency height, avoided single-stage pressure ratio height, efficient is low, wasted work is big, the final high shortcoming of delivery temperature, can the loss-rate single stage compression reduce by 10～15% approximately; Three, according to lubricated needs, the relevant lubricating point of main frame need inject the lubricant oil of different pressures.
Fig. 1 is the structural representation of the exhaust end base of oil injection threaded bolt main frame of existing two stage compression, it comprises return opening 1, one-level main exhaust side lubricant oil decanting point 2, secondary main exhaust side lubricant oil decanting point 3, gear box lubricating oil decanting point 4, main jet oil-in 5, secondary main exhaust mouth pressure point 6, one-level main exhaust side lubricant oil decanting point 2 wherein, gear box lubricating oil decanting point 4, the lubricant oil that main jet oil-in 5 is injected is low-pressure lubricant oil with respect to one-level main exhaust pressure, and secondary main exhaust side lubricant oil decanting point 3 is a high pressure lubricant oil with respect to secondary main exhaust pressure.
In the prior art, in order to ensure the lubrication oil circulation of exhaust end base of oil injection threaded bolt unit, common unit is nothing more than adopting following several modes: one, screw host carries the oil pump assembly, and by host driven, it is that enforced lubricating oil circulates that main frame one rotates; Two, unit additional configuration oil pump is driven by separate electrical motor, finishes lubrication oil circulation by electrical control; Three, unit oil-less pump drives lubricant oil by system pressure and circulates.
Carry the unit that oil pump assembly or unit additional configuration oil pump drive lubrication oil circulation for screw host, its defective is that set structure is complicated, and power consumption increases, and the unit likelihood of failure increases; Though and it is structurally fairly simple to drive the unit of lubricant oil by system pressure, the fault point is few, but need to realize flow control, need in circulation oil line system, increase the break-make that oil cut-off valve or other similar functions element are realized circulating oil path simultaneously at each lubricant oil decanting point configure dedicated decompression nozzle, throttle pipe or valve.
Summary of the invention
At the problems referred to above, the invention provides a kind of mesohigh exhaust end base of oil injection threaded bolt unit circulating oil path control system, it makes the simple while of unit circulation oil line system, guarantees functional, practicability, versatility.
Its technological scheme is such: it comprises the exhaust end base of oil injection threaded bolt main frame of two stage compression, deaerator, the oil strainer assembly, it is characterized in that: it also comprises oil cut-off valve, reduction valve, special-purpose joint chair, described deaerator is communicated with the import of described oil strainer assembly by oil pipe, the outlet of described oil strainer assembly connects described oil cut-off valve import, described oil cut-off valve outlet connects the import of described special-purpose joint chair, described reduction valve is supported on the described special-purpose joint chair, pipeline and described reduction valve internal duct in the described special-purpose joint chair communicate, described special-purpose joint chair outside connects the corresponding pouring orifice of the exhaust end base of oil injection threaded bolt main frame of described two stage compression respectively, the control switch of the described oil cut-off valve of secondary main exhaust mouth pressure point conducting on the exhaust end base of oil injection threaded bolt main frame of described two stage compression.
It is further characterized in that: described special-purpose joint chair comprises high pressure oil inlet, high-voltage oil cavity, low pressure oil pocket, low pressure oil outlet, described high-voltage oil cavity is communicated with the import of described reduction valve, the outlet of described reduction valve is communicated with described low pressure oil pocket, the outer wall of described special-purpose joint chair has high pressure oil outlet, low pressure oil outlet, described high pressure oil outlet is communicated with described high-voltage oil cavity, and described low pressure oil outlet is communicated with described low pressure oil pocket;
Secondary main exhaust mouth pressure point on the exhaust end base of oil injection threaded bolt main frame of described two stage compression connects the control switch of described oil cut-off valve by the control oil pipe;
The bottom of described reduction valve is installed on the fixed hole of the upper surface of described special-purpose joint chair by the bolt correspondence, and the bottom of described reduction valve is positioned the pin-and-hole of described special-purpose joint chair by the bearing pin correspondence;
Described special-purpose joint chair has the control return opening, the described reduction valve of described control return opening conducting unload pressure oil groove, described control return opening is connected to the exhaust end base of oil injection threaded bolt main frame of two stage compression by pipeline;
The exhaust end base of oil injection threaded bolt main frame of two stage compression comprises return opening, one-level main exhaust side lubricant oil decanting point, secondary main exhaust side lubricant oil decanting point, gear box lubricating oil decanting point, main jet oil-in, secondary main exhaust mouth pressure point, described low pressure oil outlet is communicated with described main jet oil-in by low pressure fuel pipe, described low pressure oil outlet is communicated with one-level main exhaust side lubricant oil decanting point, gear box lubricating oil decanting point respectively by low pressure fuel pipe, and described high pressure oil outlet is communicated with secondary main exhaust side lubricant oil decanting point by high-pressure oil pipe;
The described oil pipe at the thermostat valve after being connected in parallel, the two ends of cooler connects the import of described deaerator, described oil filtration assembly respectively;
The jointing of the exhaust end base of oil injection threaded bolt main frame of described two stage compression, reduction valve, deaerator, oil strainer assembly, oil cut-off valve, special-purpose joint chair, thermostat valve, cooler is equipped with fluid coupling.
After adopting said system of the present invention, owing to added oil cut-off valve, and the control switch of the described oil cut-off valve of secondary main exhaust mouth pressure point conducting on the exhaust end base of oil injection threaded bolt main frame of described two stage compression, secondary main exhaust mouth disposes one-way valve, and oil cut-off valve will in time cut out and cut off circulating oil path; Realize the break-make of circulating oil path with the pressure-driven oil cut-off valve of secondary main exhaust mouth pressure point, controllability is strong; And the setting of special-purpose joint chair, all are integrated on the special-purpose joint chair with the pipeline that each lubricating point of exhaust end base of oil injection threaded bolt main frame of two stage compression is connected, and its structure is simpler, compact, has reduced the fault point; Because reduction valve, oil cut-off valve, special-purpose joint chair, system pressure drive the setting of circulating oil path, the exhaust end base of oil injection threaded bolt main frame band oil pump that system need not to be provided with independent oil pump assembly or two stage compression drives oil circuit, and system is simple, practical; Circulation oil line system need not to use special-purpose decompression nozzle, throttle pipe or stop valve in circulation oil line system, only need the conventional fluid coupling of configuration to get final product, and has better generality, applicable different type of machines; Described system makes the simple while of unit circulation oil line system, guarantees functional, practicability, versatility.
Description of drawings
Fig. 1 is for being the structural representation of the exhaust end base of oil injection threaded bolt main frame of existing two stage compression;
Fig. 2 is a plan view structural representation of the present invention;
Fig. 3 is the assembling schematic representation of reduction valve of the present invention and special-purpose joint chair;
Fig. 4 is the plan view structural representation of special-purpose joint chair among the present invention.
Embodiment
See Fig. 2, Fig. 3, Fig. 4, the present invention includes the exhaust end base of oil injection threaded bolt main frame 7 of two stage compression, reduction valve 8, deaerator 9, oil strainer assembly 10, oil cut-off valve 11, special-purpose joint chair 12, deaerator 9 is communicated with oil strainer assembly import 13 by oil pipe 33, the outlet 14 of oil strainer assembly 10 connects oil cut-off valve import 15, oil cut-off valve outlet 16 connects the import of special-purpose joint chair 12, reduction valve 8 is supported on the special-purpose joint chair 12, pipeline and reduction valve 8 internal duct in the special-purpose joint chair 12 communicate, special-purpose joint chair 12 outsides connect the corresponding pouring orifice of the exhaust end base of oil injection threaded bolt main frame 7 of two stage compression respectively, and the secondary main exhaust mouth pressure point 6 on the exhaust end base of oil injection threaded bolt main frame 7 of two stage compression connects the control switch 17 of oil cut-off valve 11 by control oil pipe 36;
Special-purpose joint chair 12 comprises high pressure oil inlet 18, high-voltage oil cavity 19, low pressure oil pocket 20, low pressure oil outlet 21, high-voltage oil cavity 19 is communicated with reduction valve import 22 by passage 34, reduction valve outlet 23 is communicated with low pressure oil pocket 20 by passage 35, the outer wall of special-purpose joint chair 12 has high pressure oil outlet 24, low pressure oil outlet 25, high pressure oil outlet 24 is communicated with high-voltage oil cavity 19, and low pressure oil outlet 25 is communicated with low pressure oil pocket 20;
The bottom of reduction valve 8 (belongs to existing mature structure by bolt, do not draw among the figure) correspondence is installed on the fixed hole 26 of the upper surface of special-purpose joint chair 12, the bottom of reduction valve 8 is positioned the pin-and-hole 27 of special-purpose joint chair 12 by bearing pin (belong to existing mature structure, do not draw among the figure) correspondence;
Special-purpose joint chair 12 is equipped with control return opening 28, control return opening 28 conducting reduction valve 8 unload pressure oil groove 39, control return opening 28 is connected to (belong to existing mature structure, do not draw among the figure) the exhaust end base of oil injection threaded bolt main frame 7 of two stage compression by pipeline;
The exhaust end base of oil injection threaded bolt main frame of two stage compression comprises return opening 1, one-level main exhaust side lubricant oil decanting point 2, secondary main exhaust side lubricant oil decanting point 3, gear box lubricating oil decanting point 4, main jet oil-in 5, secondary main exhaust mouth pressure point 6, low pressure oil outlet 21 is communicated with main jet oil-in 5 by low pressure fuel pipe 29, low pressure oil outlet 25 is communicated with one-level main exhaust side lubricant oil decanting point 2, gear box lubricating oil decanting point 4 respectively by low pressure fuel pipe 29, and high pressure oil outlet 24 is communicated with secondary main exhaust side lubricant oil decanting point 3 by high-pressure oil pipe 30;
The oil pipe 33 at the thermostat valve 31 after being connected in parallel, the two ends of cooler 32 connects deaerator 9 respectively, oil filters assembly import 13;
The jointing of the exhaust end base of oil injection threaded bolt main frame 7 of two stage compression, reduction valve 8, deaerator 9, oil strainer assembly 10, oil cut-off valve 11, special-purpose joint chair 12, thermostat valve 31, cooler 32 is equipped with fluid coupling (for existing mature technology, not drawing among the figure); The direction of arrow among Fig. 2 is the flow direction of lubricant oil; Among Fig. 2 37 for gas mixture enter deaerator passage, 38 for minimum pressure valve, 39 for safety valve, 40 for secondary main exhaust mouth.
Its working principle is as follows: the passage 37 that the gas mixture of discharging through the exhaust end base of oil injection threaded bolt main frame 7 compression back of two stage compression enters deaerator by gas mixture enters deaerator 9 to be separated, pressurized gas are discharged through minimum pressure valve 38, lubricant oil after the separation amasss the bottom at deaerator 9, under the effect of system pressure, enter cooler 32 or thermostat valve 31 through oil pipe 33, be finally all to arrive in the oil strainer assembly 10 through lubricant oil that supercooler 32 is cooled or through the lubricant oil of thermostat valve 31 to be filtered, lubricant oil after the filtration enters the high-voltage oil cavity 19 of special-purpose joint chair 12 by oil cut-off valve 11, part high pressure oil is by high pressure oil outlet 24, high-pressure oil pipe 30 injects secondary main exhaust side lubricant oil decanting point 3, other high pressure oil is communicated with reduction valve import 22 by passage 34, after high pressure oil flows through reduction valve 8 inside afterwards, from reduction valve outlet 23, passage 35 flows into low pressure oil pocket 20, part low pressure oil is by low pressure oil outlet 21, low pressure fuel pipe 29 flows into main jet oil-in 5, and other low pressure oil is by low pressure oil outlet 25, low pressure fuel pipe 29 flows into one-level main exhaust side lubricant oil decanting point 2 respectively, gear box lubricating oil decanting point 4;
The gas-liquid mixture of secondary main exhaust mouth pressure point 6 opens oil cut-off valve 11 by the control switch 17 that control oil pipe 36 flows to oil cut-off valve 11, guarantee that lubricant oil in time arrives exhaust end base of oil injection threaded bolt main frame 7 each lubricating point of two stage compression, secondary main exhaust mouth 40 disposes one-way valve (belonging to existing maturing appts), in case the exhaust end base of oil injection threaded bolt main frame 7 of two stage compression shuts down, secondary main exhaust mouth 40 will no longer include pressure output, secondary main exhaust mouth pressure point 6 is consistent with secondary main exhaust mouth 40 pressure, secondary main exhaust mouth pressure point 6 does not have gas-liquid mixture and flows to the control switch 17 of oil cut-off valve 11 by control valve, and oil cut-off valve 11 will in time cut out and cut off circulating oil path.
Claims (8)
1. mesohigh exhaust end base of oil injection threaded bolt unit circulating oil path control system, it comprises the exhaust end base of oil injection threaded bolt main frame of two stage compression, deaerator, the oil strainer assembly, it is characterized in that: it also comprises oil cut-off valve, reduction valve, special-purpose joint chair, described deaerator is communicated with the import of described oil strainer assembly by oil pipe, the outlet of described oil strainer assembly connects described oil cut-off valve import, described oil cut-off valve outlet connects the import of described special-purpose joint chair, described reduction valve is supported on the described special-purpose joint chair, pipeline and described reduction valve internal duct in the described special-purpose joint chair communicate, described special-purpose joint chair outside connects the corresponding pouring orifice of the exhaust end base of oil injection threaded bolt main frame of described two stage compression respectively, the control switch of the described oil cut-off valve of secondary main exhaust mouth pressure point conducting on the exhaust end base of oil injection threaded bolt main frame of described two stage compression.
2. a kind of mesohigh exhaust end base of oil injection threaded bolt unit circulating oil path control system according to claim 1, it is characterized in that: described special-purpose joint chair comprises high pressure oil inlet, high-voltage oil cavity, low pressure oil pocket, low pressure oil outlet, described high-voltage oil cavity is communicated with the import of described reduction valve, the outlet of described reduction valve is communicated with described low pressure oil pocket, the outer wall of described special-purpose joint chair has high pressure oil outlet, low pressure oil outlet, described high pressure oil outlet is communicated with described high-voltage oil cavity, and described low pressure oil outlet is communicated with described low pressure oil pocket.
3. a kind of mesohigh exhaust end base of oil injection threaded bolt unit circulating oil path control system according to claim 1 and 2 is characterized in that: the secondary main exhaust mouth pressure point on the exhaust end base of oil injection threaded bolt main frame of described two stage compression connects the control switch of described oil cut-off valve by the control oil pipe.
4. a kind of mesohigh exhaust end base of oil injection threaded bolt unit circulating oil path control system according to claim 1, it is characterized in that: the bottom of described reduction valve is installed on the fixed hole of the upper surface of described special-purpose joint chair by the bolt correspondence, and the bottom of described reduction valve is positioned the pin-and-hole of described special-purpose joint chair by the bearing pin correspondence.
5. a kind of mesohigh exhaust end base of oil injection threaded bolt unit circulating oil path control system according to claim 4, it is characterized in that: described special-purpose joint chair has the control return opening, the described reduction valve of described control return opening conducting unload pressure oil groove, described control return opening is connected to the gear-box of the exhaust end base of oil injection threaded bolt main frame inside of two stage compression by pipeline.
6. a kind of mesohigh exhaust end base of oil injection threaded bolt unit circulating oil path control system according to claim 1 and 2, it is characterized in that: the exhaust end base of oil injection threaded bolt main frame of two stage compression comprises return opening, one-level main exhaust side lubricant oil decanting point, secondary main exhaust side lubricant oil decanting point, the gear box lubricating oil decanting point, the main jet oil-in, secondary main exhaust mouth pressure point, described low pressure oil outlet is communicated with described main jet oil-in by low pressure fuel pipe, described low pressure oil outlet is communicated with one-level main exhaust side lubricant oil decanting point respectively by low pressure fuel pipe, the gear box lubricating oil decanting point, described high pressure oil outlet is communicated with secondary main exhaust side lubricant oil decanting point by high-pressure oil pipe.
7. a kind of mesohigh exhaust end base of oil injection threaded bolt unit circulating oil path control system according to claim 1 is characterized in that: the described oil pipe at the thermostat valve after being connected in parallel, the two ends of cooler connects the import of described deaerator, described oil filtration assembly respectively.
8. a kind of mesohigh exhaust end base of oil injection threaded bolt unit circulating oil path control system according to claim 1, it is characterized in that: the jointing of the exhaust end base of oil injection threaded bolt main frame of described two stage compression, reduction valve, deaerator, oil strainer assembly, oil cut-off valve, special-purpose joint chair, thermostat valve, cooler is equipped with fluid coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010152926 CN101799005B (en) | 2010-04-22 | 2010-04-22 | Circulating oil path control system of middle or high pressure oil-injecting screw unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010152926 CN101799005B (en) | 2010-04-22 | 2010-04-22 | Circulating oil path control system of middle or high pressure oil-injecting screw unit |
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| Publication Number | Publication Date |
|---|---|
| CN101799005A true CN101799005A (en) | 2010-08-11 |
| CN101799005B CN101799005B (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010152926 Active CN101799005B (en) | 2010-04-22 | 2010-04-22 | Circulating oil path control system of middle or high pressure oil-injecting screw unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345048A (en) * | 2019-07-15 | 2019-10-18 | 中铁隧道集团三处有限公司 | A kind of air compressor system |
| CN115507034A (en) * | 2022-10-24 | 2022-12-23 | 冰轮环境技术股份有限公司 | Lubricating oil circulation system of oil injection screw compressor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5803715A (en) * | 1991-10-14 | 1998-09-08 | Cash Engineering Research Pty. Ltd. | Inlet control combination for a compressor system |
| JP2007255864A (en) * | 2006-03-27 | 2007-10-04 | Mitsubishi Electric Corp | Two-stage compression type refrigerating device |
| CN201412336Y (en) * | 2009-06-22 | 2010-02-24 | 浙江志高机械有限公司 | Oil-line control system of two-stage compression twin-screw air compressor |
| CN201705666U (en) * | 2010-04-22 | 2011-01-12 | 无锡压缩机股份有限公司 | Medium and high pressure oil-injection screw unit circulating oil circuit control structure |
-
2010
- 2010-04-22 CN CN 201010152926 patent/CN101799005B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5803715A (en) * | 1991-10-14 | 1998-09-08 | Cash Engineering Research Pty. Ltd. | Inlet control combination for a compressor system |
| JP2007255864A (en) * | 2006-03-27 | 2007-10-04 | Mitsubishi Electric Corp | Two-stage compression type refrigerating device |
| CN201412336Y (en) * | 2009-06-22 | 2010-02-24 | 浙江志高机械有限公司 | Oil-line control system of two-stage compression twin-screw air compressor |
| CN201705666U (en) * | 2010-04-22 | 2011-01-12 | 无锡压缩机股份有限公司 | Medium and high pressure oil-injection screw unit circulating oil circuit control structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345048A (en) * | 2019-07-15 | 2019-10-18 | 中铁隧道集团三处有限公司 | A kind of air compressor system |
| CN115507034A (en) * | 2022-10-24 | 2022-12-23 | 冰轮环境技术股份有限公司 | Lubricating oil circulation system of oil injection screw compressor |
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| Publication number | Publication date |
|---|---|
| CN101799005B (en) | 2013-03-13 |
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Effective date of registration: 20181108 Address after: 214000 No. 199, Hong Xie Road, hung Shan Street, new Wu District, Wuxi, Jiangsu Patentee after: WUXI XIYA COMPRESSOR CO.,LTD. Address before: 214145 Jiangsu Wuxi new town Photoelectric Industrial Park 1 Patentee before: WUXI COMPRESSOR Co.,Ltd. |
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Denomination of invention: A circulating oil circuit control system for medium and high pressure fuel injection screw units Granted publication date: 20130313 Pledgee: Wuxi Xinwu sub branch of Agricultural Bank of China Ltd. Pledgor: WUXI XIYA COMPRESSOR CO.,LTD. Registration number: Y2024980010540 |