CN104454545A - Compressor oil injector having gas suction function - Google Patents
Compressor oil injector having gas suction function Download PDFInfo
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- CN104454545A CN104454545A CN201410708012.XA CN201410708012A CN104454545A CN 104454545 A CN104454545 A CN 104454545A CN 201410708012 A CN201410708012 A CN 201410708012A CN 104454545 A CN104454545 A CN 104454545A
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- nozzle
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- secondary nozzle
- order jet
- oil
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The invention discloses a compressor oil injector having a gas suction function. The compressor oil injector is characterized by comprising a first-stage nozzle, a second-stage nozzle and a low-pressure gas suction inlet, wherein a cavity is formed between the first-stage nozzle and the second-stage nozzle and is communicated with the low-pressure gas suction inlet. High-pressure oil is injected in from the first-stage nozzle, then gas is sucked in from the low-pressure gas suction inlet, and a two-phase oil and gas mixture is formed, injected into the second-stage nozzle and finally injected into a compression cavity. The function of gas suction of the compression cavity is realized, and the efficiency of a compressor is increased.
Description
Technical field
The present invention relates to the fueling injection equipment in a kind of compressor.
Background technique
Compressor is widely used in the industries such as railway, steamer, mine, building, chemical industry, weaving, metallurgical machinery, military project instrument, naval vessels.Rotary compressor, compared with reciprocating-piston compressor, has the advantages such as structure is simple, running is reliable, volume is little, lightweight, noise is low.
For ensureing lubricating movement part, cooled rotor and pressurized gas, need oil spout in the compression chamber of rotary compressor.Gas mixture is discharged in vent ports by compressor, after then entering deaerator separation, sprays into compression chamber after oil is cooled by cooler.After spraying into the oil in compression chamber and fully contacting with pressurized gas, all right absorption portion heat of compression, thus reduce compression work, improve the adiabatic efficiency of compressor.
Usually oil sprays in compression chamber by a nozzle, the commencement of fuel injection when compression chamber just forms that in enclosed volume and compression chamber, gas pressure is suction pressure.As shown in Figure 1, because the pressure in deaerator is identical with exhaust pressure, the oil spout pressure reduction before and after traditional nozzle (Fig. 2) is exactly generally the pressure reduction of exhaust pressure and suction pressure in nozzle mounting point on the compressor.Such as, rated discharge pressure is the screw air compressor of 0.7MPa (gauge pressure), and oil spout pressure reduction is generally 0.7MPa.Higher pressure reduction will cause oil after spraying into compression chamber, still keep higher flow velocity, clash into rotor, thus cause liquid hammer to lose, and reduce compressor efficiency.According to fluid mechanics principle, the pressure reduction maintaining 0.2 ~ 0.3MPa before and after nozzle is enough to oil to spray into compression chamber smoothly.
Summary of the invention
Liquid hammer loss is reduced in the reasonable scope in order to be controlled by the pressure reduction before and after oil spout nozzle, the invention provides the fueling injection equipment in a kind of rotary compressor, can by the gas inlet nozzle of compressor inlet, the compression chamber of compressor is sprayed into after forming gas mixture, increase the air inflow of compressor, make the injection of oil gas two-phase more easily realize being atomized oil spout, thus improve the adiabatic efficiency of compression process.
For reaching above object, the present invention takes following technological scheme to be achieved:
A kind of compressor oil sprayer with air suction function, its function utilizes the pressure reduction of lubricant oil that unpressed gas is sucked compression chamber, it is characterized in that, comprise entrance end band and have the secondary nozzle of mixing chamber, the first order jet nozzle be sleeved in secondary nozzle mixing chamber, the entry end of first order jet nozzle is the fluid entrance connecting high-pressure oil pipe, the outlet end of secondary nozzle is the compression chamber that oil gas vent leads to compressor, first order jet nozzle is consistent with the axle center of secondary nozzle, and the minimum sectional area of first order jet nozzle is less than the minimum sectional area of secondary nozzle; The barrel of secondary nozzle mixing chamber is provided with a Suction gas inlet, to be connected or to be directly communicated with air by low pressure gas pipe with the suction port of compressor.
In such scheme, described secondary nozzle, independent of the casing of compressor, is connected with the nozzle opening on casing by screw thread or welding manner.
Described secondary nozzle also can be arranged on the casing of compressor, is integrated with casing, and the oil gas vent of secondary nozzle overlaps with the nozzle opening on casing.
The compressor oil sprayer of another kind of band air suction function, it is characterized in that, comprise entrance end band and have the secondary nozzle of mixing chamber, the first order jet nozzle be sleeved in secondary nozzle mixing chamber, the entry end of first order jet nozzle is the fluid entrance connecting high-pressure oil pipe, the outlet end of secondary nozzle is the compression chamber that oil gas vent leads to compressor, first order jet nozzle is consistent with the axle center of secondary nozzle, and the minimum sectional area of first order jet nozzle is less than the minimum sectional area of secondary nozzle; The tube wall of first order jet nozzle is provided with the sucking pipe being parallel to nozzle-axis, is communicated with by the Suction gas inlet of mixing chamber with first order jet nozzle sidewall, and this Suction gas inlet to be connected with the suction port of compressor by low pressure gas pipe or to be directly communicated with air.
The compressor oil sprayer of above two kinds of band air suction functions, described low pressure gas pipe all can be provided with one-way valve.
After the present invention adopts such scheme, oil pressure injection portion gas more than needed can be utilized to enter compression chamber, improve the volumetric efficiency of compressor; After oil gas two-phase sprays into compression chamber, more easily atomization improves the adiabatic efficiency of compressor.
Accompanying drawing explanation
Fig. 1 is oil sprayer or conventional spout mounting point schematic diagram on the compressor.
Fig. 2 is the structural representation of conventional spout.
Fig. 3 is the structural representation of oil sprayer of the present invention.
Fig. 4 is first specific embodiment of Fig. 3 oil sprayer.
Fig. 5 is second specific embodiment of Fig. 3 oil sprayer.
Fig. 6 is the 3rd specific embodiment of Fig. 3 oil sprayer.
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
Embodiment 1
Before rotary compressor jet, an oil sprayer 1 is installed, as shown in Figure 1, oil sprayer comprises rear end with the secondary nozzle 5 of mixing chamber 8, the first order jet nozzle 6 be sleeved in secondary nozzle mixing chamber 8, the rear end of first order jet nozzle is fluid entrance 2, the front end of secondary nozzle is oil gas vent 4, is communicated with the jet of compressor.The barrel of secondary nozzle mixing chamber is provided with Suction gas inlet 3, connects low pressure gas pipe 9.Fluid entrance 2 is connected with high-pressure oil pipe 7, high pressure oil through oil cooler cooling imports from fluid entrance 2, and spray into secondary nozzle 5 from first order jet nozzle 6, now low pressure gas is sucked mixing chamber 8 by Suction gas inlet 3, after mixing with high pressure oil, spray into the compression chamber of compressor from oil gas vent 4.Low pressure gas pipe 9 is generally connected with the suction port of compressor.Air compressor if it is empty, low pressure gas pipe can UNICOM direct with air.Low pressure gas pipe 9 can be installed an one-way valve 10, to ensure one-way intake.
The structural feature of this device is that high pressure oil enters first order jet nozzle, gas from Suction gas inlet by unidirectional enter, two-phase oil gas sprays into compression chamber from secondary nozzle; The minimum sectional area of first order jet nozzle is less than the minimum sectional area of secondary nozzle; First order jet nozzle aims at the axle center of secondary nozzle; There is cavity between first order jet nozzle and secondary nozzle, this cavity is connected with low pressure gas entrance.
The concrete structure that Fig. 3 oil sprayer is arranged on rotary compressor casing 11 before jet 12 can with reference to figure 4.High-voltage oil liquid, from fluid entrance 2, sprays into mixing chamber 8 by first order jet nozzle 6, now from Suction gas inlet 3, low pressure gas is sucked mixing chamber 8, forms gas mixture sprays into compressor through jet 12 from oil gas vent 4 compression chamber by secondary nozzle 5.
The feature of the present embodiment is that oil sprayer 1 can be directly installed on the casing 11 of compressor, and existing compressor can directly be applied.
Embodiment 2
With reference to figure 5, the secondary nozzle 5 of oil sprayer 1 is located on the casing 11 of compressor, with compressor case 11 be one, the mixing chamber 8 of secondary nozzle connects first order jet nozzle 6, the tube wall of first order jet nozzle is provided with the sucking pipe 13 being parallel to nozzle-axis, be communicated with Suction gas inlet 3 by mixing chamber, Suction gas inlet is with the suction port of compressor or be communicated with air.After high pressure oil enters mixing chamber 8 by first order jet nozzle entrance 2, by Suction gas inlet from sucking pipe 13 suction gas, air-fuel mixture in mixing chamber 8, sprays into the compression chamber of compressor from the outlet 4 (being also jet 12) of secondary nozzle.
The feature of the present embodiment is that sucking pipe 13 is set directly on first order jet nozzle 6.
Embodiment 3
With reference to figure 5, the present embodiment is substantially with embodiment 2, and the feature of this embodiment is, sucking pipe 13 is set directly on compressor case 11, with the parallel to an axis of compressor, is communicated with by mixing chamber 8 with the intakeport of compressor.
Claims (6)
1. the compressor oil sprayer with air suction function, it is characterized in that, comprise entrance end band and have the secondary nozzle of mixing chamber, the first order jet nozzle be sleeved in secondary nozzle mixing chamber, the entry end of first order jet nozzle is the fluid entrance connecting high-pressure oil pipe, the outlet end of secondary nozzle is the compression chamber that oil gas vent leads to compressor, first order jet nozzle is consistent with the axle center of secondary nozzle, and the minimum sectional area of first order jet nozzle is less than the minimum sectional area of secondary nozzle; The barrel of secondary nozzle mixing chamber is provided with a Suction gas inlet, to be connected or to be directly communicated with air by low pressure gas pipe with the suction port of compressor.
2. the compressor oil sprayer of band air suction function as claimed in claim 1, it is characterized in that, described secondary nozzle, independent of the casing of compressor, is connected with the nozzle opening on casing by screw thread or welding manner.
3. the compressor oil sprayer of band air suction function as claimed in claim 1, it is characterized in that, described secondary nozzle is arranged on the casing of compressor, is integrated with casing, and the oil gas vent of secondary nozzle overlaps with the nozzle opening on casing.
4. the compressor oil sprayer of the band air suction function as described in one of claims 1 to 3, is characterized in that, described low pressure gas pipe is provided with one-way valve.
5. the compressor oil sprayer with air suction function, it is characterized in that, comprise entrance end band and have the secondary nozzle of mixing chamber, the first order jet nozzle be sleeved in secondary nozzle mixing chamber, the entry end of first order jet nozzle is the fluid entrance connecting high-pressure oil pipe, the outlet end of secondary nozzle is the compression chamber that oil gas vent leads to compressor, first order jet nozzle is consistent with the axle center of secondary nozzle, and the minimum sectional area of first order jet nozzle is less than the minimum sectional area of secondary nozzle; The tube wall of first order jet nozzle is provided with the sucking pipe being parallel to nozzle-axis, is communicated with by the Suction gas inlet of mixing chamber with first order jet nozzle sidewall, and this Suction gas inlet to be connected with the suction port of compressor by low pressure gas pipe or to be directly communicated with air.
6. the compressor oil sprayer of band air suction function as claimed in claim 5, is characterized in that, described low pressure gas pipe is provided with one-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410708012.XA CN104454545B (en) | 2014-11-27 | 2014-11-27 | A kind of compressor fuel injector with air suction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410708012.XA CN104454545B (en) | 2014-11-27 | 2014-11-27 | A kind of compressor fuel injector with air suction function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104454545A true CN104454545A (en) | 2015-03-25 |
| CN104454545B CN104454545B (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410708012.XA Active CN104454545B (en) | 2014-11-27 | 2014-11-27 | A kind of compressor fuel injector with air suction function |
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| CN (1) | CN104454545B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111516891A (en) * | 2020-03-25 | 2020-08-11 | 中国空气动力研究与发展中心低速空气动力研究所 | Exciter capable of simultaneously realizing steady air suction and oscillation air blowing |
| CN112944188A (en) * | 2019-11-26 | 2021-06-11 | 北京机械工业自动化研究所有限公司 | Gun type movable oiling device and oiling head thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4080119A (en) * | 1974-06-24 | 1978-03-21 | Sven Evald Eriksson | Method and device for draining oil from the gear case of a compressor |
| US5927863A (en) * | 1996-12-23 | 1999-07-27 | Atlas Copco Airpower, Naamloze Vennotschap | Machine with bearing-mounted rotors and liquid-lubricated bearings |
| JP2000110766A (en) * | 1998-10-02 | 2000-04-18 | Hitachi Ltd | Oil cooled screw compressor |
| CN201318545Y (en) * | 2008-11-12 | 2009-09-30 | 无锡压缩机股份有限公司 | Combination-type oil spraying nozzle |
| CN102032177A (en) * | 2010-12-27 | 2011-04-27 | 西安交通大学 | Fully-closed horizontal oil-injection scroll compressor |
| CN203321830U (en) * | 2010-07-28 | 2013-12-04 | 马克辛维克托罗维奇·奥林池 | Rotor piston compressor |
-
2014
- 2014-11-27 CN CN201410708012.XA patent/CN104454545B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4080119A (en) * | 1974-06-24 | 1978-03-21 | Sven Evald Eriksson | Method and device for draining oil from the gear case of a compressor |
| US5927863A (en) * | 1996-12-23 | 1999-07-27 | Atlas Copco Airpower, Naamloze Vennotschap | Machine with bearing-mounted rotors and liquid-lubricated bearings |
| JP2000110766A (en) * | 1998-10-02 | 2000-04-18 | Hitachi Ltd | Oil cooled screw compressor |
| CN201318545Y (en) * | 2008-11-12 | 2009-09-30 | 无锡压缩机股份有限公司 | Combination-type oil spraying nozzle |
| CN203321830U (en) * | 2010-07-28 | 2013-12-04 | 马克辛维克托罗维奇·奥林池 | Rotor piston compressor |
| CN102032177A (en) * | 2010-12-27 | 2011-04-27 | 西安交通大学 | Fully-closed horizontal oil-injection scroll compressor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112944188A (en) * | 2019-11-26 | 2021-06-11 | 北京机械工业自动化研究所有限公司 | Gun type movable oiling device and oiling head thereof |
| CN111516891A (en) * | 2020-03-25 | 2020-08-11 | 中国空气动力研究与发展中心低速空气动力研究所 | Exciter capable of simultaneously realizing steady air suction and oscillation air blowing |
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| Publication number | Publication date |
|---|---|
| CN104454545B (en) | 2016-07-06 |
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