CN203051128U - Variable-frequency double-screw two-stage supercharging air compressor - Google Patents
Variable-frequency double-screw two-stage supercharging air compressor Download PDFInfo
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- CN203051128U CN203051128U CN 201220657147 CN201220657147U CN203051128U CN 203051128 U CN203051128 U CN 203051128U CN 201220657147 CN201220657147 CN 201220657147 CN 201220657147 U CN201220657147 U CN 201220657147U CN 203051128 U CN203051128 U CN 203051128U
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- air compressor
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- stage supercharging
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Abstract
The utility model discloses a variable-frequency double-screw two-stage supercharging air compressor. The air compressor comprises an acoustic enclosure and a low-pressure screw compressor, a high-pressure screw compressor, a first electric motor, a second electric motor, a belt drive device, a whirlwind drying machine, a primary oil-gas separator and a secondary oil-gas separator, which are installed in the acoustic enclosure, wherein the first electric motor is connected with the low-pressure screw compressor via a coupling drive device; the second electric motor is connected with the high-pressure screw compressor via the belt drive device; the low-pressure screw compressor is connected with the primary oil-gas separator via a pipeline; the primary oil-gas separator is connected with the high-pressure screw compressor via a pipeline; the high-pressure screw compressor is connected with the secondary oil-gas separator via a pipeline; and the whirlwind drying machine is installed between the primary oil-gas separator and the high-pressure screw compressor. The air compressor also comprises a frequency converter which is connected with the second electric motor. The air compressor has a simple structure and large flow, is convenient to use and can save the electric energy.
Description
Technical field
The utility model relates to a kind of air compressor of mechanical field, particularly a kind of variable-frequency type twin-screw two-stage supercharging air compressor.
Background technique
Air compressor is the main body in the compressed air source unit, and it is the device that the mechanical energy of prime mover (normally motor) is converted to the gas pressure energy, is compressed-air actuated air pressure generating means.
The kind of air compressor is a lot, can be divided into positive displacement compressor by working principle, the speed mode compressor, and the working principle of positive displacement compressor is the volume of pressurized gas, makes the density of gas molecule in the per unit volume increase to improve compressed-air actuated pressure; The working principle of speed mode compressor is to improve the movement velocity of gas molecule, and the kinetic energy that gas molecule is had is converted into the pressure energy of gas, thereby improves compressed-air actuated pressure.
Air compressor commonly used now has piston type air compressor, screw air compressor (screw air compressor is divided into double-screw type air compressor and single screw air compressor again); Centrifugal compressor and sliding-vane air compressor; Scroll type air compressor.
Existing double-screw air compressor is when work, and low pressure helical-lobe compressor and high pressure helical-lobe compressor are separately to work; When the low pressure helical-lobe compressor in when work, the high pressure helical-lobe compressor is in off working state, though this moment, the high pressure helical-lobe compressor did not compress air, but it also is in running state, will inevitably consumed power, making the high pressure helical-lobe compressor that is under the off working state is the technical problem that need solve now with the low-limit frequency operation.
The model utility content
The technical problems to be solved in the utility model provides a kind of simple in structure, easy to use, saving power, and can make high pressure helical-lobe compressor a kind of variable-frequency type twin-screw two-stage supercharging air compressor with the low-limit frequency operation when off working state.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of variable-frequency type twin-screw two-stage supercharging air compressor comprises sound-insulating cover, is placed in low pressure helical-lobe compressor, high pressure helical-lobe compressor, first motor, second motor, belt drive unit, vortex type dryer, one-level deaerator and secondary deaerator in the sound-insulating cover; Be connected by the coupling transmission device between described first motor and the low pressure helical-lobe compressor, be connected by belt drive unit between described second motor and the high pressure helical-lobe compressor; Described low pressure helical-lobe compressor is connected with the one-level deaerator by pipeline; Described one-level deaerator is connected with the high pressure helical-lobe compressor by pipeline, and described high pressure helical-lobe compressor is connected with the secondary deaerator by pipeline; Described vortex type dryer is placed between one-level deaerator and the high pressure helical-lobe compressor; Described variable-frequency type twin-screw two-stage supercharging air compressor also comprises a frequency variator, and described frequency variator is connected with second motor.
In an embodiment of the present utility model, described frequency variator is the E5-H-4T90G frequency variator.
In an embodiment of the present utility model, be provided with first radiator between described one-level deaerator and the vortex type dryer.
In an embodiment of the present utility model, place, the outlet side of described secondary deaerator is provided with second radiator.
In an embodiment of the present utility model, described low pressure helical-lobe compressor is provided with inlet end and outlet side, and described inlet end is provided with suction valve and empty filter.
In an embodiment of the present utility model, described belt drive unit is made up of driving wheel, follower and belt.
In an embodiment of the present utility model, the top of described first motor and second motor is equipped with two blower fans.
In an embodiment of the present utility model, described first motor and second motor all are placed in the bottom of sound-insulating cover, and are equipped with beam between both and the sound-insulating cover.
In an embodiment of the present utility model, described vortex type dryer is provided with inlet end, outlet side and drain opening, and described drain opening is arranged on the bottom of vortex type dryer, and the drain opening of described vortex type dryer is provided with automatic drain valve; The outlet side of described vortex type dryer is provided with y-type filter, dew point transducer, pressure transducer and temperature transducer.
By technique scheme, the beneficial effects of the utility model are:
1, the utility model low pressure helical-lobe compressor, vortex type dryer and high pressure helical-lobe compressor together are arranged in the sound-insulating cover, have reduced floor space greatly.
2, the utility model high pressure helical-lobe compressor has partly adopted frequency variator, moves with low-limit frequency when frequency variator can be controlled high pressure helical-lobe compressor off working state, has so just saved many electric energy for the client; And protected the high pressure helical-lobe compressor can not cause motor to burn out because of unexpected factor.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the utility model internal structure schematic representation 1;
Fig. 2 is the utility model internal structure schematic representation 2;
Fig. 3 is the utility model internal structure schematic representation 3;
Fig. 4 is the utility model working principle schematic representation.
Numeral and the represented corresponding part title of letter among the figure:
10, sound-insulating cover 20, low pressure helical-lobe compressor 21, suction valve 22, empty filter 23, reduction valve 30, high pressure helical-lobe compressor 40, first motor 50, second motor 60, one-level deaerator 70, secondary deaerator 80, vortex type dryer 81, automatic drain valve 82, y-type filter 83, dew point transducer 84, pressure transducer 85, temperature transducer 86, the solenoid valve 87 of dying, one-way valve 90, first radiator 100, second radiator 110, driving wheel 111, follower 112, belt 120, blower fan 130, beam 140, frequency variator.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
To shown in Figure 4, a kind of variable-frequency type twin-screw of the utility model two-stage supercharging air compressor comprises sound-insulating cover 10, is placed in low pressure helical-lobe compressor 20, high pressure helical-lobe compressor 30, first motor 40, second motor 50, belt drive unit, vortex type dryer 80, one-level deaerator 60 and secondary deaerator 70 in the sound-insulating cover 10 referring to Fig. 1.
The utility model also comprises a frequency variator 140, it is connected with second motor 50, be responsible for the frequency of okperation of control high pressure helical-lobe compressor 30, high pressure helical-lobe compressor 30 is moved with low-limit frequency when off working state, so just save electric energy, and protected compressor can not damage because unexpected factor causes motor; Frequency variator is the E5-H-4T90G frequency variator
Be connected by coupling transmission device (not marking among the figure) between first motor 40 and the low pressure helical-lobe compressor 20, be connected by belt drive unit between second motor 50 and the high pressure helical-lobe compressor 30; Low pressure helical-lobe compressor 20 is provided with inlet end and outlet side, and this inlet end is provided with suction valve 21, empty filter 22 and reduction valve 23, and this outlet side is connected with one-level deaerator 60 by pipeline; Suction valve 21 is for the flow of control air inlet, and empty filter 22 is used for being filled into airborne granulometric impurity, and dust is to the wearing and tearing of part, the working life of having improved the utility model device in the minimizing air.
One-level deaerator 60 is connected with high pressure helical-lobe compressor 30 by pipeline, vortex type dryer 80 is placed between one-level deaerator 60 and the high pressure helical-lobe compressor 30, being provided with first radiator, 90, the first radiators 90 between one-level deaerator 60 and the vortex type dryer 80 is used for lowering the temperature through the pressurized air of one-level deaerator 60; High pressure helical-lobe compressor 30 is connected with an end of secondary deaerator 70 by pipeline, the other end of secondary deaerator 70 is connected with second radiator 100, second radiator 100 is responsible for the pressurized air of handling through secondary deaerator 70 is lowered the temperature, and uses in order to supply with the client.
The belt drive unit that drives 30 runnings of high pressure helical-lobe compressor is made up of driving wheel 110, follower 111 and belt 112, during work, 110 runnings of motor drives driving wheel, driving wheel 110 drive follower 111 runnings, and follower 111 drives 30 work of high pressure helical-lobe compressor.
Two motor of the utility model all are arranged on the bottom of sound-insulating cover 10, are equipped with beam 130 at the surface of contact place of motor and sound-insulating cover 10 bottoms, and it can avoid motor and sound-insulating cover direct collision, has prolonged the working life of motor.
The utility model is respectively equipped with two blower fans 120 above two motor, blower fan 120 is used for to the entire equipment cooling, and being convenient to entire equipment can normally move.
The utility model vortex type dryer 80 is provided with inlet end, outlet side and drain opening, and this drain opening is arranged on the bottom of vortex type dryer, is used for discharging the water that separates from air; The drain opening of vortex type dryer is provided with automatic drain valve 81; The outlet side of vortex type dryer 80 is provided with y-type filter 82, dew point transducer 83, pressure transducer 84 and temperature transducer 85; The measuring pressure scope of this dew point transducer 83 is at 0.6-1.1MPa, and ambient temperature is less than 45 °.
Vortex type dryer 80 is a kind of equipment by the steam in the inertial separation gas, is used for gas solid separation morely.
Working principle of the present utility model is as follows:
At first, opening power, first motor 40 drives 20 work of low pressure helical-lobe compressor, and high pressure helical-lobe compressor 30 is in off working state, and frequency variator 140 control high pressure helical-lobe compressors 30 move with low-limit frequency; Open the suction valve 21 on the low pressure helical-lobe compressor 20, enter in the low pressure helical-lobe compressor 20 after air filters through empty filter 22 and compress; Low-pressure compressed air after the compression enters into one-level deaerator 60 by pipeline, the low-pressure compressed air of handling through one-level deaerator 60 flow into the processing of lowering the temperature in first radiator 90, low-pressure compressed air through cooling enters in the vortex type dryer 80, after low-pressure compressed air enters separator in the vortex type dryer along the barrel tangent direction of vortex type dryer, produce rotation inside, being mixed in water droplet in the gas also and then rotates together and produces centrifugal force, the centrifugal force that the water droplet that quality is big produces is big, the big outside wall shift of water droplet is moving under centrifugal action, runs into to gather behind the outer wall (also being baffle plate) again and grows up and separated from the gas; Gather the automatic drain opening of one bottom the vortex type dryer at last and be discharged into the outside; Removed the low-pressure compressed air of water through y-type filter 82, dew point transducer 83, pressure transducer 84, temperature transducer 85, die solenoid valve 86 and one-way valve 87 reaches high pressure helical-lobe compressor 30, after high pressure helical-lobe compressor 30 obtains actuating signal, frequency variator 140 quits work, 30 pairs of pressurized air of high pressure helical-lobe compressor carry out secondary compression, when reaching 3.0MPa, the pressure of secondary compressed air stops compression, the high pressure air of this moment is admitted in the secondary deaerator 70 and separates, and the high pressure air after separating is supplied with the mesohigh user through second radiator, 100 cooling backs and used.
More than show and described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (9)
1. a variable-frequency type twin-screw two-stage supercharging air compressor comprises sound-insulating cover, is placed in low pressure helical-lobe compressor, high pressure helical-lobe compressor, first motor, second motor, belt drive unit, vortex type dryer, one-level deaerator and secondary deaerator in the sound-insulating cover; It is characterized in that: be connected by the coupling transmission device between described first motor and the low pressure helical-lobe compressor, be connected by belt drive unit between described second motor and the high pressure helical-lobe compressor; Described low pressure helical-lobe compressor is connected with the one-level deaerator by pipeline; Described one-level deaerator is connected with the high pressure helical-lobe compressor by pipeline, and described high pressure helical-lobe compressor is connected with the secondary deaerator by pipeline; Described vortex type dryer is placed between one-level deaerator and the high pressure helical-lobe compressor; Described variable-frequency type twin-screw two-stage supercharging air compressor also comprises a frequency variator, and described frequency variator is connected with second motor.
2. a kind of variable-frequency type twin-screw two-stage supercharging air compressor according to claim 1, it is characterized in that: described frequency variator is the E5-H-4T90G frequency variator.
3. a kind of variable-frequency type twin-screw two-stage supercharging air compressor according to claim 1 is characterized in that: be provided with first radiator between described one-level deaerator and the vortex type dryer.
4. a kind of variable-frequency type twin-screw two-stage supercharging air compressor according to claim 1 is characterized in that: the place, outlet side of described secondary deaerator is provided with second radiator.
5. a kind of variable-frequency type twin-screw two-stage supercharging air compressor according to claim 1, it is characterized in that: described low pressure helical-lobe compressor is provided with inlet end and outlet side, and described inlet end is provided with suction valve and empty filter.
6. a kind of variable-frequency type twin-screw two-stage supercharging air compressor according to claim 1, it is characterized in that: described belt drive unit is made up of driving wheel, follower and belt.
7. a kind of variable-frequency type twin-screw two-stage supercharging air compressor according to claim 1, it is characterized in that: the top of described first motor and second motor is equipped with two blower fans.
8. a kind of variable-frequency type twin-screw two-stage supercharging air compressor according to claim 1, it is characterized in that: described first motor and second motor all are placed in the bottom of sound-insulating cover, and are equipped with beam between both and the sound-insulating cover.
9. a kind of variable-frequency type twin-screw two-stage supercharging air compressor according to claim 1, it is characterized in that: described vortex type dryer is provided with inlet end, outlet side and drain opening, described drain opening is arranged on the bottom of vortex type dryer, and the drain opening of described vortex type dryer is provided with automatic drain valve; The outlet side of described vortex type dryer is provided with y-type filter, dew point transducer, pressure transducer and temperature transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220657147 CN203051128U (en) | 2012-12-03 | 2012-12-03 | Variable-frequency double-screw two-stage supercharging air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220657147 CN203051128U (en) | 2012-12-03 | 2012-12-03 | Variable-frequency double-screw two-stage supercharging air compressor |
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| Publication Number | Publication Date |
|---|---|
| CN203051128U true CN203051128U (en) | 2013-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220657147 Expired - Fee Related CN203051128U (en) | 2012-12-03 | 2012-12-03 | Variable-frequency double-screw two-stage supercharging air compressor |
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| CN (1) | CN203051128U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269530A (en) * | 2017-06-08 | 2017-10-20 | 浙江德拉戈机械有限公司 | A kind of permanent-magnetic variable frequency screw two-stage compression air compressor machine |
-
2012
- 2012-12-03 CN CN 201220657147 patent/CN203051128U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269530A (en) * | 2017-06-08 | 2017-10-20 | 浙江德拉戈机械有限公司 | A kind of permanent-magnetic variable frequency screw two-stage compression air compressor machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160603 Address after: 221000 hi tech Industrial Park, Fengxian County Economic Development Zone, Xuzhou, Jiangsu Province, China, Zhang Ludong, East and north respectively Patentee after: Sheng Sheng Machinery (Jiangsu) Co., Ltd. Address before: 201100 4, three Lu Lu, 79, Shanghai, Minhang District Patentee before: SHANGHAI XINRAN COMPRESSOR CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20161203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |