CN201650673U - Variable frequency oil-free compressor - Google Patents
Variable frequency oil-free compressor Download PDFInfo
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- CN201650673U CN201650673U CN2010292510588U CN201029251058U CN201650673U CN 201650673 U CN201650673 U CN 201650673U CN 2010292510588 U CN2010292510588 U CN 2010292510588U CN 201029251058 U CN201029251058 U CN 201029251058U CN 201650673 U CN201650673 U CN 201650673U
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Abstract
The utility model discloses a variable frequency oil-free compressor comprising a compressor main host, a variable frequency motor, an oil-gas pipeline and a control system, wherein the front end of an air inlet valve connected with the compressor host is provided with an air filter; an oil-gas mixing pipeline at an outlet of the compressor host is connected with an oil-gas separation tank; a gas transporting pipeline connected at the upper part of the oil-gas separation tank by an oil-gas separator core is connected into a gas-water separator; the gas transporting pipeline of the gas-water separator is sequentially connected with a VF speed adjuster and a heat exchanger and then connected with a reaction bucket; after being filtered by the air filter, the outside air enters the compressor host for compression, the oil-gas mixture generated after compression is discharged to the oil-gas separation tank, is respectively separated primarily and finely by the oil-gas separation tank and the oil-gas separator core, and then enters the reaction bucket for chemical reaction by the gas-water separator, the VF speed adjuster and the heat exchanger, and the quality of the obtained compressed air far surpasses the standards of ISO8573-1 first-class oil content (no more than 0.01mg/m3).
Description
Technical field
The utility model belongs to the air compressor technical field, relates to a kind of compressor assembly that purifies the pressurized gas function that has, and is specifically related to a kind of frequency conversion oilless compressor.
Background technique
The pressurized air that present state inner compressor is provided all can not reach the GB/T13277-91 quality standard, moisture in the pressurized air and contained lubricant oil are generally gaseous state under higher exhaust gas temperature, mix with the dust that is sucked again and form the material that oil gas, moisture, dust mix, use these pressurized air to remove to make the product of food and medicine with compounding substances, not only make the quality of product of food, medicine be difficult to guarantee, and bring infringement can for compressed air source unit and pneumatic system.
At first, oil content is caused the wearing and tearing of Pneumatic assembly relative motion surface by the back formed organic acid that gasified is understood equipment is corroded to some extent in the pressurized air that existing compressor provided, and makes control unit malfunctioning.Must dispose an air cleaning system, the method that domestic tradition obtains purification of compressed air has two kinds for this reason:
First kind is directly to use oilless compressor, disposes absorption type dryer again;
Second kind is to use oil lubricating compressor to be arranged, configuration filter, refrigerant type dryer and polishing filter in system.
First method has proposed very high requirement for the design and the manufacturing of compressor itself, its design and manufacture cost can increase greatly, the easily damaged parts of compressor obviously reduces working life in addition, be about 50% of oil lubricating compressor, next is the wearing and tearing aggravations, reveal increasing and cause volumetric efficiency to reduce, the maintenance expenses of compressor increases.So often adopt second method mostly.Though and second method does not have special requirement to compressor itself, key is to choose cleaning system, and it normally adopts mechanical separation to filter and lyophilisation, and then carries out the mode of activated carbon filtration.Yet the compressor assembly of making in this way still can't have the function that clean compressed air can be provided fully at present, can't guarantee that also air-channel system does not have oil pollution, and the possibility of eliminating the danger of the blast of hiding because of the existence of carbon hydride.
The model utility content
The purpose of this utility model provides a kind of simple in structure, easy to install, be suitable for the frequency conversion oilless compressor that food, medicine, electronics, chemical industry and space flight and aviation industry product structure are used, its adopts and to add the nothing oil converting system that devices such as moisture trap, VF speed regulator, heat exchanger and reaction container are formed in traditional little hydraulic shrinking machine, and the cleaning that oil content contained in the gas after compressing and hydrocarbon are converted into no oil cooling condensate is not simultaneously had oil-gas-source---pure pressurized air; Pressurized air is cooled to temperature through aftercooler the temperature of demand again, stably provide the pressurized air that does not have oil to use, it has solved in the pressurized air that existing compressor provided the oil content formed organic acid in back that gasified can corrode to some extent to equipment, also can cause the problems referred to above such as Pneumatic assembly relative motion surface wearing and tearing.
The technological scheme that the utility model adopted is, a kind of frequency conversion oilless compressor, comprise rack-mounted compressor host, variable-frequency motor, oil gas pipeline and control system, the suction valve front end that connects at described compressor host is equipped with air-strainer, the oil gas mixing tube road of compressor host outlet is connected to catch pot, the air delivering pipeline that connects through oil-gas separating core in catch pot top inserts the moisture trap that is provided with, be connected to VF speed regulator, heat exchanger on the air delivering pipeline of moisture trap successively, insert reaction container then; The solenoid valve, the minimum pressure valve that connect on the air delivering pipeline of heat exchanger output terminal insert aftercooler again, in the outside of aftercooler cooling fan are housed also; The oily output pipe at described catch pot middle part is connected on the aftercooler through thermostat valve, and returns and be connected to compressor host through thermostat valve.
Frequency conversion oilless compressor described in the utility model, its feature also be,
The oil-gas separating core that described catch pot middle and upper part is provided with is provided with the secondary return line that is connected to compressor host.
Also be provided with pilot line between described suction valve and the catch pot, on pilot line, be provided with atmospheric valve, inverse proportion valve, loading solenoid valve.
The return line that described catch pot is connected to compressor host is provided with oil strainer and oil strainer differential pressure switch, and the Oil-gas Separation pot bottom also is equipped with oil drain valve.
The beneficial effect of the utility model frequency conversion oilless compressor is, when ambient air is inhaled into after air-strainer filters, enters the compressor internal compression, and the gas mixture that compressed machine compression back produces is discharged to catch pot; Gas mixture respectively through the first separation of catch pot, deaerator core and segmentation from, what the pressurized air of output was fit to common industry fully uses the gas demand, pressurized air is more successively by moisture trap, VF speed regulator, heat exchanger, enter into reaction container then, pressurized air is crossed chemical reaction at the reaction container back warp, airborne residual oil is processed once more, obtains pure pressurized air; Last pressurized air is cooled to temperature through aftercooler the temperature of demand, stably provide the pressurized air that does not have oil to use, solved the corrosion of the formed organic acid in back of being gasified of oil content in the pressurized air that existing compressor provided effectively, caused surface abrasion problem when having prevented the Pneumatic assembly relative movement to equipment.The stable pressurized air that does not have oil that provides; Oil and other hydrocarbon concentration≤0.003mg/m
3
The utility model frequency conversion oilless compressor needs 20 unlike traditional oilless compressor, 000-25, and 000 working hours carries out major engine overhaul, not only had a strong impact on production, and maintenance expenses is high; It is moving 15,000-20, and behind 000 working hours, the reaction container that only needs to change no oily transducer just can be stablized and obtains to provide the pressurized air that does not have oil to use, and the replacing maintenance is quite simple and efficient.
The utility model frequency conversion oilless compressor also has following characteristics:
1) operation is absolute reliable, and operational efficiency is not subjected to the influence of following factors:
● the reaction initial concentration of oil;
● operating ambient temperature;
● compressed-air actuated moisture content.
2) new standard of the ecological efficient of adaptation, environmentally safe;
3) downstream of filtration system has protection not have oil pollution;
4) the active carbon adsorption filter than traditional is little by 70%, saves the space;
5) operating cost is low, the business efficiency height;
6) maximum pressure can reach 16 kilograms, applied range;
7) motor adopts VFC, not only reduces power consumption, and prolongs electrical machinery life, and constant system pressure is provided; Remove the sorrow of reprocessing.
Description of drawings
Fig. 1 is the utility model frequency conversion oilless compressor working principle schematic representation;
Fig. 2 is the utility model frequency conversion oilless compressor structural representation;
Fig. 3 is that Fig. 2 frequency conversion oilless compressor A is to structural representation;
Fig. 4 is that Fig. 3 frequency conversion oilless compressor B is to structural representation;
Fig. 5 is that Fig. 4 frequency conversion oilless compressor C is to structural representation.
Among the figure, 1. compressor host, 2. variable-frequency motor, 3. suction valve, 4. air-strainer, 5. catch pot, 6. oil-gas separating core, 7. moisture trap, 8.VF speed regulator, 9. heat exchanger, 10. reaction container, 11. solenoid valves, 12. minimum pressure valve, 13. aftercoolers, 14. cooling fans, 15. thermostat valves, 16. atmospheric valve, 17. inverse proportion valves, 18. load solenoid valve, 19. oil strainer, 20. oil strainer differential pressure switches, 21. oil drain valves.
Pilot line
Air delivering pipeline
Pipeline road
The oil gas mixing tube road
Embodiment
Below in conjunction with fundamental diagram, structure the drawings and specific embodiments the utility model is elaborated.
A kind of frequency conversion oilless compressor, as Fig. 1 and Fig. 2, shown in Figure 3, comprise rack-mounted compressor host 1, variable-frequency motor 2, oil gas pipeline and control system, suction valve 3 front ends that connect at described compressor host 1 are equipped with air-strainer 4, the oil gas mixing tube road of compressor host 1 outlet is connected to catch pot 5, the air delivering pipeline that connects through oil-gas separating core 6 in catch pot 5 tops inserts the moisture trap 7 that is provided with, be connected to VF speed regulator 8, heat exchanger 9 on the air delivering pipeline of moisture trap 7 successively, insert reaction container 10 then; The solenoid valve 11, the minimum pressure valve 12 that connect on the air delivering pipeline of heat exchanger 9 output terminals insert aftercooler 13 again, in the outside of aftercooler cooling fan 14 are housed also; The oily output pipe at described catch pot 5 middle parts is connected on the aftercooler 13 through thermostat valve 15, and returns and to be connected to compressor host 1 through thermostat valve 15.
As shown in Figure 1, the oil-gas separating core 6 that is provided with of described catch pot 5 middle and upper parts is provided with the secondary return line that is connected to compressor host 1;
Also be provided with pilot line between described suction valve 3 and the catch pot 5, on pilot line, be provided with atmospheric valve 16, inverse proportion valve 17, load solenoid valve 18;
The return line that described catch pot 5 is connected to compressor host 1 is provided with oil strainer 19 and oil strainer differential pressure switch 20, and oil drain valve 21 also is equipped with in catch pot 5 bottoms.
After 2 energisings of frequency conversion oilless compressor variable-frequency motor started, on air delivering pipeline, ambient air entered compressor host 1 internal compression after filtering through air-strainer 4, and the gas mixture that compressor host 1 compression back produces is displaced into catch pot 5; Gas mixture is used the gas demand through the first separation of catch pot 5 and deaerator core 6 and segmentation from what, the pressurized air that comes out was fit to common industry fully respectively; Pressurized air by moisture trap 7, VF speed regulator 8 and heat exchanger 9, enters into reaction container 10 once more then; Pressurized air is crossed chemical reaction at reaction container 10 back warps, and airborne residual oil is processed once more, obtains pure pressurized air; Last pressurized air is supplied with required place use to the temperature that temperature is cooled to demand through aftercooler 13.
The oil strainer 19, the oil strainer differential pressure switch 20 that on atmospheric valve 16, inverse proportion valve 17, loading solenoid valve 18 and the pipeline road that pilot line is provided with, are provided with, and relevant instrument, valve all effectively compression, Oil-gas Separation working procedure are carried out data collection, compensation is regulated and control after sucking air for the frequency conversion oilless compressor, with most economical, best working state operational outfit.
After the frequency conversion oilless compressor was running to the stipulated time, lubricated must the replacing in the catch pot 5 was equipped with oil drain valve 21 by opening catch pot 5 bottoms, and it is cleaned out.
The utility model frequency conversion oilless compressor pressurized air treatment process is reliable, is separated from pressurized air by the active carbon adsorption mode unlike prior art oil.But in physics-chemical reaction, adopt a kind of special nothing oil transfer principle to come in the catalytic reaction air switching oil of existence and the compound of minimum gas naturally, all hydrocarbons also have carbon monoxide all to be eliminated in the catch pot 5 of frequency conversion oilless compressor, deaerator core 6, reaction container 10.Final pressurized air is oil-containing anything but, the content≤0.003mg/m of its oil/hydrocarbon
3, and can not have any restrictedly need guarantee to use in the compressed-air actuated industry of not having oil at all use.The process of this frequency conversion oilless compressor equipment aerogenesis is not only to help environmental protection, and its overlength that surpasses 15,000 hours is also economical working life.
The given structural configuration mode of above-mentioned accompanying drawing 2-5 is an example of the present utility model; not to be used for limiting enforcement of the present utility model and interest field; all equivalences of making according to the described content of the utility model patent application protection domain change and modify, and all should be included in the utility model patent claim.
Claims (4)
1. frequency conversion oilless compressor, comprise rack-mounted compressor host (1), variable-frequency motor (2), oil gas pipeline and control system, it is characterized in that, suction valve (3) front end that connects at described compressor host (1) is equipped with air-strainer (4), the oil gas mixing tube road of compressor host (1) outlet is connected to catch pot (5), the air delivering pipeline that connects through oil-gas separating core (6) in catch pot (5) top inserts the moisture trap (7) that is provided with, be connected to VF speed regulator (8) on the air delivering pipeline of moisture trap (7) successively, heat exchanger (9) inserts reaction container (10) then; The solenoid valve (11), the minimum pressure valve (12) that connect on the air delivering pipeline of heat exchanger (9) output terminal insert aftercooler (13) again, in the outside of aftercooler cooling fan (14) are housed also; The oily output pipe at described catch pot (5) middle part is connected on the aftercooler (13) through thermostat valve (15), and returns and be connected to compressor host (1) through thermostat valve (15).
2. the described frequency conversion oilless compressor of root a tree name claim 1 is characterized in that, the oil-gas separating core (6) that described catch pot (5) middle and upper part is provided with is provided with the secondary return line that is connected to compressor host (1).
3. the described frequency conversion oilless compressor of root a tree name claim 1 is characterized in that, also is provided with pilot line between described suction valve (3) and the catch pot (5), is provided with atmospheric valve (16), inverse proportion valve (17) on pilot line, loads solenoid valve (18).
4. root a tree name claim 1 or 2 described frequency conversion oilless compressors, it is characterized in that, the return line that described catch pot (5) is connected to compressor host (1) is provided with oil strainer (19) and oil strainer differential pressure switch (20), and oil drain valve (21) also is equipped with in catch pot (5) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010292510588U CN201650673U (en) | 2010-02-08 | 2010-02-08 | Variable frequency oil-free compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010292510588U CN201650673U (en) | 2010-02-08 | 2010-02-08 | Variable frequency oil-free compressor |
Publications (1)
| Publication Number | Publication Date |
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| CN201650673U true CN201650673U (en) | 2010-11-24 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010292510588U Expired - Fee Related CN201650673U (en) | 2010-02-08 | 2010-02-08 | Variable frequency oil-free compressor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102146908A (en) * | 2010-02-08 | 2011-08-10 | 东莞市雅迪勤压缩机制造有限公司 | Variable frequency (VF) oilless compressor |
| CN103362813A (en) * | 2013-07-22 | 2013-10-23 | 徐道敏 | Two-stage compression single-screw air compressor and work method thereof |
| CN109937304A (en) * | 2016-09-21 | 2019-06-25 | 克诺尔商用车制动系统有限公司 | Screw compressor for commercial vehicle |
| CN110816583A (en) * | 2019-11-15 | 2020-02-21 | 南京中车浦镇海泰制动设备有限公司 | Variable-frequency air supply device for rail transit vehicle |
| CN114739051A (en) * | 2014-09-09 | 2022-07-12 | 开利公司 | Cooler compressor oil regulation |
-
2010
- 2010-02-08 CN CN2010292510588U patent/CN201650673U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102146908A (en) * | 2010-02-08 | 2011-08-10 | 东莞市雅迪勤压缩机制造有限公司 | Variable frequency (VF) oilless compressor |
| CN102146908B (en) * | 2010-02-08 | 2014-03-05 | 东莞市雅迪勤压缩机制造有限公司 | Variable frequency (VF) oilless compressor |
| CN103362813A (en) * | 2013-07-22 | 2013-10-23 | 徐道敏 | Two-stage compression single-screw air compressor and work method thereof |
| CN103362813B (en) * | 2013-07-22 | 2016-04-27 | 徐道敏 | A kind of two stage compression single-screw air compressor and method of work thereof |
| CN114739051A (en) * | 2014-09-09 | 2022-07-12 | 开利公司 | Cooler compressor oil regulation |
| CN109937304A (en) * | 2016-09-21 | 2019-06-25 | 克诺尔商用车制动系统有限公司 | Screw compressor for commercial vehicle |
| CN109937304B (en) * | 2016-09-21 | 2021-06-04 | 克诺尔商用车制动系统有限公司 | Screw compressor for a commercial vehicle |
| US11286938B2 (en) | 2016-09-21 | 2022-03-29 | Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh | Oil separator and relief valve of a screw compressor for a utility vehicle |
| CN110816583A (en) * | 2019-11-15 | 2020-02-21 | 南京中车浦镇海泰制动设备有限公司 | Variable-frequency air supply device for rail transit vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20140208 |