CN205423125U - Variable frequency speed regulating system of air compressor machine - Google Patents
Variable frequency speed regulating system of air compressor machine Download PDFInfo
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- CN205423125U CN205423125U CN201620160985.9U CN201620160985U CN205423125U CN 205423125 U CN205423125 U CN 205423125U CN 201620160985 U CN201620160985 U CN 201620160985U CN 205423125 U CN205423125 U CN 205423125U
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- air compressor
- converter
- compressor machine
- pressure transmitter
- variable frequency
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Abstract
The utility model provides a variable frequency speed regulating system of air compressor machine, variable frequency speed regulating system includes converter, pressure transmitter, compressed gas conveying line to and air compressor machine motor, pressure transmitter sets up on compressed gas conveying line, output U, V, W and the air compressor machine motor lug connection of converter, the corotation signal terminal STF of converter is through the ac contactor 1M's on the air compressor machine motor main circuit a pair of normally open contact, with the switch -on of converter common control end SD, the analog quantity feedback signal 2 and 5 terminals of converter are connected with pressure transmitter. The utility model discloses the start -up and the method of operation of air compressor machine motor can be improved, the mechanical wear of equipment is reduced, extension duration of service, and practice thrift the electric energy.
Description
[technical field]
This utility model relates to the frequency conversion speed-adjusting system of a kind of air compressor machine.
[background technology]
Compressor has become requisite key equipment in the industrial circles such as weaving, chemical industry, power, is the nucleus equipment in many industrial department technological processes.The supply gas pressure that compressed air needed for automated production is enough is provided, is the smooth and easy key element of production procedure, the pressure drop of moment, i.e. can affect product quality.Along with the maturation of converter technique, converter is applied more and more extensive in Electrified Transmission field.
Existing air compressor motor power is generally large, and Starting mode uses unloaded (unloading) star-triangle start, loads and unloading manner is all instantaneous.This makes air compressor machine have bigger starting current on startup, bigger to plant machinery impact when loading and unload；Not only cause mains fluctuations, compressed gas source also can be made to produce bigger fluctuation；The most this method of operation also can the abrasion of acceleration equipment, reduce the service life of equipment.Owing to the dragging motor of general air compressor itself can not speed governing, therefore cannot directly use the variation of pressure or flow to realize the coupling of reduction of speed regulation output, motor does not allow frequent starting, causes motor gas consumption is few when still to want no-load running, and waste of energy is huge.
Further, since the working cycle of gas equipment or the difference of production technology so that gas consumption fluctuates, and causes air compressor machine frequently to load sometimes, unloads.Air compressor machine unloading rear motor still power frequency operating, not only wastes electric energy but also increases the mechanical wear of equipment；Air compressor machine loading procedure is to load suddenly, also equipment and electrical network can be caused bigger impact.
[summary of the invention]
The technical problems to be solved in the utility model, is to provide the frequency conversion speed-adjusting system of a kind of air compressor machine, its startup that can improve air compressor motor and the method for operation, reduces the mechanical wear of equipment, extension device service life, and saves energy.
This utility model is achieved in that
A kind of frequency conversion speed-adjusting system of air compressor machine, described frequency conversion speed-adjusting system includes converter, pressure transmitter, compressed gas transfer pipeline, and air compressor motor, described pressure transmitter is arranged on compressed gas transfer pipeline, and outfan U, V, W of described converter are directly connected to air compressor motor；The rotating forward signal terminal STF of described converter, by a pair normally opened contact of the A.C. contactor 1M on air compressor motor main circuit, control end SD public with converter connects；Analog quantity feedback signal 2 and 5 terminal of described converter, is connected with pressure transmitter.
The utility model has the advantage of:
Frequency Conversion Modification is carried out, it is possible to make motor realize soft soft stop, reduce and start impact, extension device service life for existing air compressor machine；Simultaneously because motor running frequency is variable, achieve the air compressor machine size self-regulation motor rotating speed according to gas consumption, decrease motor and load frequently and unload, thus reduce the operation power of motor by a relatively large margin, make air supply system air pressure remain constant, just can realize energy-conservation purpose.
[accompanying drawing explanation]
This utility model is further described the most in conjunction with the embodiments.
Fig. 1 is main circuit structural representation of the present utility model.
Fig. 2 is implementation result schematic diagram of the present utility model.
[detailed description of the invention]
Refer to shown in Fig. 1 and Fig. 2, embodiment of the present utility model is described in detail.
As shown in Figure 1, the frequency conversion speed-adjusting system of a kind of air compressor machine involved by this utility model, described frequency conversion speed-adjusting system includes converter 1, pressure transmitter 2, compressed gas transfer pipeline, and air compressor motor 3, described pressure transmitter 2 is arranged on compressed gas transfer pipeline, and outfan U, V, W of described converter 1 are directly connected to air compressor motor 3；The rotating forward signal terminal STF of described converter 1, by a pair normally opened contact of the A.C. contactor 1M on air compressor motor 3 main circuit, control end SD public with converter 1 connects；Analog quantity feedback signal 2 and 5 terminal of described converter 1, is connected with pressure transmitter 2.
Emphasis refers to Fig. 2, frequency conversion speed-adjusting system is using the compressed-air actuated output pressure of air compressor machine as control object, by converter 1, pressure transmitter 2, air compressor motor 3 forms closed-loop constant-pressure control system, working pressure is directly arranged by guidance panel, site pressure (i.e. compressed gas transfer pipeline pressure) is detected by pressure transmitter 2, converter 1 is fed back to after being converted into 4～20mA current signals, converter 1 compares calculating by internal PID, thus regulate its output frequency, reach to regulate air compressor motor 3 rotating speed, and then the purpose of regulation air compressor motor 3 output.As long as regulating the rotating speed of air compressor motor 3 as can be seen here, it is possible to regulation air compressor motor 3 shaft power, namely have adjusted the input power of air compressor machine itself, making the air quantity processed of air compressor machine match with air quantity, reaching constant pressure air feeding and energy-conservation purpose.
In a word, this utility model carries out Frequency Conversion Modification for existing air compressor machine, it is possible to makes motor realize soft soft stop, reduces and start impact, extension device service life；Simultaneously because motor running frequency is variable, achieve the air compressor machine size self-regulation motor rotating speed according to gas consumption, decrease motor and load frequently and unload, thus reduce the operation power of motor by a relatively large margin, make air supply system air pressure remain constant, just can realize energy-conservation purpose.
Although the foregoing describing detailed description of the invention of the present utility model; but those familiar with the art is to be understood that; we are merely exemplary described specific embodiment; rather than for the restriction to scope of the present utility model; those of ordinary skill in the art, in the equivalent modification made according to spirit of the present utility model and change, should be contained in scope of the claimed protection of the present utility model.
Claims (1)
1. the frequency conversion speed-adjusting system of an air compressor machine, it is characterized in that: described frequency conversion speed-adjusting system includes converter, pressure transmitter, compressed gas transfer pipeline, and air compressor motor, described pressure transmitter is arranged on compressed gas transfer pipeline, and outfan U, V, W of described converter are directly connected to air compressor motor；The rotating forward signal terminal STF of described converter, by a pair normally opened contact of the A.C. contactor 1M on air compressor motor main circuit, control end SD public with converter connects；Analog quantity feedback signal 2 and 5 terminal of described converter, is connected with pressure transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620160985.9U CN205423125U (en) | 2016-03-03 | 2016-03-03 | Variable frequency speed regulating system of air compressor machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620160985.9U CN205423125U (en) | 2016-03-03 | 2016-03-03 | Variable frequency speed regulating system of air compressor machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205423125U true CN205423125U (en) | 2016-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620160985.9U Active CN205423125U (en) | 2016-03-03 | 2016-03-03 | Variable frequency speed regulating system of air compressor machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN205423125U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111472968A (en) * | 2020-05-20 | 2020-07-31 | 领跃电子科技（珠海）有限公司 | Frequency conversion transformation method for air compression station |
-
2016
- 2016-03-03 CN CN201620160985.9U patent/CN205423125U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111472968A (en) * | 2020-05-20 | 2020-07-31 | 领跃电子科技（珠海）有限公司 | Frequency conversion transformation method for air compression station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 353000 No. 63 Anfeng Road, Yanping District, Nanping City, Fujian Province Patentee after: Fujian Funeng Nanfang New Materials Co., Ltd. Address before: 353000 No. 63 Anfeng Road, Yanping District, Nanping City, Fujian Province Patentee before: FUJIAN SOUTHERN TEXTILE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Nanping City, Fujian province 353000 Yanping District No. 63 Feng Lu ANN Patentee after: Fujian Funeng Nanfang sanitary materials Co., Ltd Address before: Nanping City, Fujian province 353000 Yanping District No. 63 Feng Lu ANN Patentee before: Fujian Funeng Nanfang New Materials Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |