CN202300963U - Dual-frequency-conversion air compressor unit - Google Patents
Dual-frequency-conversion air compressor unit Download PDFInfo
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- CN202300963U CN202300963U CN2011203831691U CN201120383169U CN202300963U CN 202300963 U CN202300963 U CN 202300963U CN 2011203831691 U CN2011203831691 U CN 2011203831691U CN 201120383169 U CN201120383169 U CN 201120383169U CN 202300963 U CN202300963 U CN 202300963U
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- air compressor
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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
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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Abstract
The utility model relates to an air compressor unit and discloses a dual-frequency-conversion air compressor unit. The dual-frequency-conversion air compressor unit comprises an electric energy accessing device, an energy conversion device and a drive load, wherein one end of the energy conversion device is in circuited connection with the electric energy accessing device and the other end of the energy conversion device is mechanically connected with the drive load; and the dual-frequency-conversion air compressor unit also comprises a frequency converter, wherein the frequency converter is in circuited connection between the electric energy accessing device and the energy conversion device. The dual-frequency-conversion air compressor unit is used for automatically controlling the energy conversion device to carry out frequency conversion according to the change of a voltage of a power grid, the change of an output pressure of the air compressor and the temperature near the air compressor and ensures that the frequency conversion operation is carried out more accurately and the working output of the air compressor keeps a continuous change, the electric energy is saved, the output quality of the air compressor is improved, and the working efficiency of the air compressor is further improved.
Description
Technical field
The utility model relates to a kind of air compressor unit.
Background technique
Air compressor (Air Compressor) is the main body in the compressed air source unit, and it is the device that the mechanical energy of motor is converted to the gas pressure ability, in a lot of fields, like mining area, field of petrochemical industry, all has very and uses widely.
Air compressor unit of the prior art comprises the main frame and the motor-driven fan of heat radiation that are driven by main motor, and the motor that it adopted is conventional motor; Therefore, unit is when work, and frequency of okperation is nonadjustable; Can't change according to line voltage and carry out synchronous adjusting, simultaneously, have only work and inoperative two states; When air pressure is not enough, open motor in working state; When air pressure was sufficient, then disable motor was in off working state.Like this, air pressure is the variation of non-standing, and not only energy-output ratio is bigger, is unfavorable for environmental protection and energy-conservation, and air is carried of low quality.
The model utility content
The purpose of the utility model provides a kind of pair of frequency conversion air compressor unit, to overcome the above-mentioned defective that existing technology exists.
Two frequency conversion air compressor units that the utility model provided; Comprise electric energy access device, energy conversion device and driving load, said energy conversion device one end and said electric energy access device circuitry phase connection and the other end and said driving load be mechanical connection mutually; It is characterized in that, also comprise a converter plant, said converter plant is connected between said electric energy access device and the said energy conversion device.
Two frequency conversion air compressor units that the utility model provided are provided with converter plant, can be according to the variation of line voltage, the variation of air compressor delivery pressure and near the temperature the air compressor; Automatically the control energy conversion device carries out frequency conversion; Make frequency conversion work more accurate, can make the work output of air compressor keep and successionally to change, save electric energy; Improve the output quality of air compressor, further improve the working efficiency of air compressor.
Description of drawings
Fig. 1 is the electrical block diagram of two frequency conversion air compressor units that the utility model provided.
Fig. 2 is the circuit diagram of converter plant.
Embodiment
For the embodiment's that makes the utility model purpose, technological scheme and advantage clearer; To combine the accompanying drawing among the utility model embodiment below; Technological scheme among the utility model embodiment is carried out clear, intactly description; Obviously, described embodiment is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment one
Referring to Fig. 1; The frequency conversion air compressor unit that the utility model provided; Comprise electric energy access device (11), energy conversion device (12) and drive load (13); It will be understood by those skilled in the art that said electric energy access device (11) is used to make said motor to be connected with power supply, thereby insert electric energy; Said driving load (13) is the air compression machine host, is used for output mechanical energy, and said energy conversion device (12) one ends and said electric energy access device (11) circuitry phase connection and the other end and said driving load (13) be mechanical connection mutually; It is characterized in that: also comprise a converter plant (14), said converter plant (14) is connected between said electric energy access device (11) and the said energy conversion device (12).
It will be understood by those skilled in the art that said energy conversion device (12) for being provided with the motor of rotating magnetic field and rotor, owing to magnetic field is rotated, thereby is rotated rotor under the function of current, accomplish the conversion of electric energy to mechanical energy.The speed that it will be understood by those skilled in the art that the rotation of said magnetic field is directly proportional with the frequency of electric current, causes the rotational speed of said rotor also to be directly proportional with the frequency of said electric current.Therefore,, just can change the rotational speed of rotor, thereby change the rotational speed of motor as long as change the frequency of electric current.Said converter plant (14) can be according to the frequency of the size adjustment electric current of the variation of line voltage and air pressure; Thereby the output quantity that makes said air compressor is a persistency to be changed; So not only but energy efficient also helps the working efficiency that improves motor, improves air and carries quality.
Reasonable, said energy conversion device (12) is a rare-earth permanent-magnet electric machine;
As shown in Figure 2, said converter plant (14) comprises rectification circuit (21) and inverter circuit (23); Said rectification circuit (21) one ends are connected with said electric energy access device (11) circuitry phase and the other end is connected with said inverter circuit (23) circuitry phase; The other end of said inverter circuit (23) is connected with said energy conversion device (12).It will be understood by those skilled in the art that said rectification circuit (21) is used for converting the AC power that inserts into DC power; Said inverter circuit (23) is used for the DC power of said rectification circuit (21) output is transformed to the AC power of the frequency that requires, thereby realizes that AC-to DC arrives the process that exchanges again, to reach the purpose of frequency control of motor speed.
As shown in Figure 2, said converter plant (14) also comprises an eliminator (22), and said eliminator (22) circuit is connected between said rectification circuit (21) and the said inverter circuit (23).It will be appreciated by those skilled in the art that; Said rectification circuit (21) in the course of the work; Can produce a large amount of higher harmonicss, these higher harmonicss can produce other equipment and disturb as being brought into electrical network; Said eliminator (22) is used for the said higher harmonics of filtering, avoids other equipment to receive the interference of higher harmonics.
As shown in Figure 2, said rectification circuit (21) comprises six diodes, is respectively first diode (D1), second diode (D2), the 3rd diode (D3), the 4th diode (D4), the 5th diode (D5) and the 6th diode (D6); Said first diode (D1) circuit, said second diode (D2) that form connect with said the 6th diode (D6) circuit of formation of circuit, said the 3rd diode (D3) of formation of connect with said the 5th diode (D5) of connecting with said the 4th diode (D4) is parallel with one another.So just formed diode rectifier circuit (21), be used for converting the Ac that inserts said converter plant (14) into direct current.
As shown in Figure 2, said inverter circuit (23) comprises six diodes, is respectively the 7th diode (D7), the 8th diode (D8), the 9th diode (D9), the tenth diode (D10), the 11 diode (D11) and the 12 diode (D12); Said the 7th diode (D7) circuit, said the 8th diode (D8) that form connect with said the 12 diode (D12) circuit of formation of circuit, said the 9th diode (D9) of formation of connect with said the 11 diode (D11) of connecting with said the tenth diode (D10) is parallel with one another.So just formed diode inverter circuit (23), be used for converting the output of rectification rectification circuit (21) into require frequency Ac.
As shown in Figure 1; Said pair of frequency conversion air compressor unit also comprises a detection device (15); Said detection device (15) is connected with said converter plant (14) circuit, is used for the output current frequency of controlling said converter plant (14) according to the air pressure and the supply voltage of said air compressor output.
Said detection device (15) comprises pressure transducer, voltage transducer and control circuit, and the input end of said pressure transducer is placed on the gas delivery port of said air compressor, is used for the force value of the delivery air of the said air compressor of perception; The output terminal of said pressure transducer is connected with the input end that said control circuit is connected; The input end of said voltage transducer is connected with power supply, and the output terminal of said control circuit is connected with said converter plant (14), is used for exporting control signal to said converter plant (14), thereby changes the output current frequency of said converter plant (14).Like this, the said motor that is used for air compressor just can be according to air delivery pressure and supply voltage automatic frequency-conversion, and the frequency conversion precision that better improves has improved the output quality of air compressor.
Embodiment two
The frequency conversion air compressor unit of the utility model; Also comprise the fan that is driven by fan electromotor, said fan is arranged on and drives load (13) is a side of air compression machine host, is provided with converter plant (14) between power supply and the fan electromotor; Reasonable, said fan is a turbofan.
Sensor in said detection device (15) is the temperature transducer, and miscellaneous part, circuit structure are all identical with motor described in the said embodiment one.
As shown in Figure 1, said detection device (15) comprises temperature transducer and control circuit, the input end of said temperature transducer be placed on said air compressor near, be used near the air temperature the said air compressor of perception; The output terminal of said temperature transducer is connected with the input end that said control circuit is connected; The output terminal of said control circuit is connected with said converter plant (14); Be used for exporting control signal, thereby change the output current frequency of said converter plant (14) to said converter plant (14).Can produce heat when it will be understood by those skilled in the art that, cause body temperature very high owing to air compressor work.Detect said air compressor temperature on every side with temperature transducer, thereby realize control, just realized coming the rotating speed of control fan automatically, can further save the power consumption of said air compressor according to temperature to converter plant (14).
What should explain at last is: above embodiment is only in order to the technological scheme of explanation the utility model, but not to its restriction; Although the utility model has been carried out detailed explanation with reference to previous embodiment; Those of ordinary skill in the art is to be understood that: it still can be made amendment to the technological scheme that aforementioned each embodiment put down in writing, and perhaps part technical characteristics wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of each embodiment's technological scheme of essence disengaging the utility model of relevant art scheme.
Claims (10)
1. two frequency conversion air compressor unit; Comprise electric energy access device (11), energy conversion device (12) and drive load (13) that said energy conversion device (12) one ends and said electric energy access device (11) circuitry phase connection and the other end and said driving load (13) be mechanical connection mutually; It is characterized in that: also comprise a converter plant (14), said converter plant (14) circuit is connected between said electric energy access device (11) and the said energy conversion device (12).
2. as claimed in claim 1 pair of frequency conversion air compressor unit is characterized in that: said converter plant (14) comprises rectification circuit (21) and inverter circuit (23); Said rectification circuit (21) one ends are connected with said electric energy access device (11) circuitry phase and the other end is connected with said inverter circuit (23) circuitry phase; The other end of said inverter circuit (23) is connected with said energy conversion device (12).
3. as claimed in claim 2 pair of frequency conversion air compressor unit is characterized in that: said converter plant (14) also comprises an eliminator (22), and said eliminator (22) circuit is connected between said rectification circuit (21) and the said inverter circuit (23).
4. as claimed in claim 3 pair of frequency conversion air compressor unit; It is characterized in that: said rectification circuit (21) comprises six diodes, is respectively first diode (D1), second diode (D2), the 3rd diode (D3), the 4th diode (D4), the 5th diode (D5) and the 6th diode (D6); Said first diode (D1) circuit, said second diode (D2) that form connect with said the 6th diode (D6) circuit of formation of circuit, said the 3rd diode (D3) of formation of connect with said the 5th diode (D5) of connecting with said the 4th diode (D4) is parallel with one another.
5. like claim 2 or 3 described pairs of frequency conversion air compressor units; It is characterized in that: said inverter circuit (23) comprises six diodes, is respectively the 7th diode (D7), the 8th diode (D8), the 9th diode (D9), the tenth diode (D10), the 11 diode (D11) and the 12 diode (D12); Said the 7th diode (D7) circuit, said the 8th diode (D8) that form connect with said the 12 diode (D12) circuit of formation of circuit, said the 9th diode (D9) of formation of connect with said the 11 diode (D11) of connecting with said the tenth diode (D10) is parallel with one another.
6. as claimed in claim 1 pair of frequency conversion air compressor unit is characterized in that: also comprise a detection device (15), said detection device (15) is connected with said converter plant (14) circuit.
7. as claimed in claim 6 pair of frequency conversion air compressor unit; It is characterized in that: said detection device (15) comprises pressure transducer, voltage transducer and control circuit; The input end of said pressure transducer is placed on the gas delivery port of said air compressor, and the output terminal of said pressure transducer is connected with the input end that said control circuit is connected; The input end of said voltage transducer is connected with power supply, and the output terminal of said control circuit is connected with said converter plant (14).
8. as claimed in claim 6 pair of frequency conversion air compressor unit; It is characterized in that: said detection device (15) comprises temperature transducer and control circuit; The input end of said temperature transducer be placed on said air compressor near; The output terminal of said temperature transducer is connected with the input end that said control circuit is connected, and the output terminal of said control circuit is connected with said converter plant (14).
9. as claimed in claim 1 pair of frequency conversion air compressor unit is characterized in that: described energy conversion device (12) is a rare-earth permanent-magnet electric machine.
10. like each described pair of frequency conversion air compressor unit of claim 1～9; It is characterized in that: also comprise the fan that drives by fan electromotor; Said fan is arranged on a side that drives load (13), is provided with converter plant (14) between power supply and the fan electromotor, and said fan is a turbofan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203831691U CN202300963U (en) | 2011-10-10 | 2011-10-10 | Dual-frequency-conversion air compressor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203831691U CN202300963U (en) | 2011-10-10 | 2011-10-10 | Dual-frequency-conversion air compressor unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202300963U true CN202300963U (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203831691U Expired - Fee Related CN202300963U (en) | 2011-10-10 | 2011-10-10 | Dual-frequency-conversion air compressor unit |
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| Country | Link |
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| CN (1) | CN202300963U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032299A (en) * | 2011-10-10 | 2013-04-10 | 上海施耐德日盛机械(集团)有限公司 | Dual-variable-frequency air compressor unit |
-
2011
- 2011-10-10 CN CN2011203831691U patent/CN202300963U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032299A (en) * | 2011-10-10 | 2013-04-10 | 上海施耐德日盛机械(集团)有限公司 | Dual-variable-frequency air compressor unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI LINUO PRECISION TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SHANGHAI SCHNEIDER-SUNSHINE MACHINERY (GROUP) CO., LTD. Effective date: 20140630 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 200949 BAOSHAN, SHANGHAI TO: 201900 BAOSHAN, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140630 Address after: 201900 Shanghai District, Baoshan District, Shanghai Road, No. 3, district 9088, A459 Patentee after: Shanghai Linuo Precision Technology Co. Ltd. Address before: 200949 Shanghai City, Baoshan District Fanlu Shanghai No. 53 Building 1 Patentee before: Shanghai Schneider0Sunshine Machinery Group Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20201010 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |