CN207813924U - Double-drive permanent-magnet frequency conversion two stages of compression screw air compressor control device - Google Patents
Double-drive permanent-magnet frequency conversion two stages of compression screw air compressor control device Download PDFInfo
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- CN207813924U CN207813924U CN201721475188.0U CN201721475188U CN207813924U CN 207813924 U CN207813924 U CN 207813924U CN 201721475188 U CN201721475188 U CN 201721475188U CN 207813924 U CN207813924 U CN 207813924U
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Abstract
The utility model discloses double-drive permanent-magnet frequency conversion two stages of compression screw air compressor control devices, including controller, frequency conversion cooling fan, pedestal, it is provided with barrel of oil and gas beside controller, it is provided with first order frequency converter beside barrel of oil and gas, it is provided with second level frequency converter beside first order frequency converter, barrel of oil and gas is provided with oil pressure pipe below, it is provided with frequency conversion cooling fan beside oil pressure pipe, oil pressure pipe is provided with first order head below, it is provided with second level head beside first order head, it is provided with second level magneto beside the head of the second level, it is provided with first order magneto beside the magneto of the second level.Advantageous effect is：By secondary pressure PID control primary frequency, first class pressure PID control Second Level Frequency, such secondary pressure signal is converted directly into primary frequency signal, and device controls faster, more precisely；Improve Second Level Frequency when passing through startup, when pressure rise is controlled Second Level Frequency in original frequency by PDI, efficiently solves low voltage starting high temperature problem.
Description
Technical field
The utility model is related to helical compression air fields, more particularly to double-drive permanent-magnet frequency conversion two stages of compression screw air compressing
Machine control device.
Background technology
The method that conventional control device uses:Secondary pressure sets a rotating speed by PID control Second Level Frequency, by device
Than calculating primary frequency from Second Level Frequency to control the level-one rotating speed of compressor, there is three problems among these, first, turning
What speed ratio come from, is that Die Design determines, or sums up in a large amount of experiment；Second is that rotating speed under different working condition pressures
Than that cannot unify, several different rotating ratios are actually generally required；Third, primary frequency needs Second Level Frequency and rotating ratio
It determines, wherein existence time is poor, cannot pressure signal rapidly be switched to primary frequency signal, voltage stabilizing has delay, air compressor machine
Work is not sufficiently stable, conventional control device two level highest frequency is fixed, in two stages of compression screw air compressor low voltage starting
One stage temperature rise crosses up to machine down.
Utility model content
The purpose of this utility model is that solve the above-mentioned problems and provides double-drive permanent-magnet frequency conversion two stages of compression screw rod
Air compressor control device.
The utility model is achieved through the following technical solutions above-mentioned purpose：
Double-drive permanent-magnet frequency conversion two stages of compression screw air compressor control device, including controller, frequency conversion cooling fan, pedestal,
It is provided with barrel of oil and gas beside the controller, first order frequency converter, the first order frequency converter are provided with beside the barrel of oil and gas
Side is provided with second level frequency converter, and the barrel of oil and gas is provided with oil pressure pipe, the change is provided with beside the oil pressure pipe below
Frequency cooling fan, the oil pressure pipe are provided with first order head, second level head are provided with beside the first order head below,
It is provided with second level magneto beside the second level head, first order permanent magnetism is provided with beside the second level magneto
Motor.
In above structure, the controller sends out the orders such as booting, raising frequency, frequency reducing, unloading, shutdown and controls the first order
Frequency conversion cooling wind described in frequency converter and the second level frequency converter, the first order frequency converter and the second level Frequency Converter Control
Fan, the first order head and the second level head bring into operation, and improve working efficiency.
In order to further increase working efficiency, the controller is carried out with the first order frequency converter by way of electric wire
Closely connection, the first order frequency converter are closely connect with the second level frequency converter by way of supporting rack.
In order to further increase working efficiency, the barrel of oil and gas is carried out closely with the oil pressure pipe by way of connecting tube
Connection, the oil pressure pipe closely connect with the first order head by way of connecting tube.
In order to further increase working efficiency, the first order head passes through permanent magnetism coil with the first order magneto
Mode closely connected, the first order head and the second level head mediate contact.
In order to further increase working efficiency, the second level head passes through permanent magnetism coil with the second level magneto
Mode closely connected, the first order head is closely connect with the pedestal by way of bolt, institute
It states second level head closely to be connect by way of bolt with the pedestal, the pedestal and the frequency conversion cooling fan
It is closely connected by way of supporting rack.
Advantageous effect is：By secondary pressure PID control primary frequency, first class pressure PID control Second Level Frequency, in this way
Secondary pressure signal is converted directly into primary frequency signal, and device controls faster, more precisely；Two level frequency is improved when passing through startup
Rate is controlled Second Level Frequency in original frequency by PDI when pressure rise, efficiently solves low voltage starting high temperature problem.
Description of the drawings
Fig. 1 is the schematic diagram of double-drive permanent-magnet frequency conversion two stages of compression screw air compressor control device described in the utility model.
1, controller；2, frequency conversion cooling fan；3, pedestal；4, first order head；5, barrel of oil and gas；6, oil pressure pipe；7, second
Grade head；8, second level magneto；9, first order magneto；10, second level frequency converter；11, first order frequency converter.
Specific implementation mode
The utility model is described in further detail below in conjunction with the accompanying drawings：
As shown in Figure 1, double-drive permanent-magnet frequency conversion two stages of compression screw air compressor control device, including controller 1, frequency conversion cooling
Fan 2, pedestal 3,1 side of controller are provided with barrel of oil and gas 5, and 5 side of barrel of oil and gas is provided with first order frequency converter 11, and the first order becomes
11 side of frequency device is provided with second level frequency converter 12, and barrel of oil and gas 5 is provided with oil pressure pipe 6 below, and 6 side of oil pressure pipe is provided with frequency conversion
Cooling fan 2, oil pressure pipe 6 are provided with first order head 4 below, and 4 side of first order head is provided with second level head 7, and second
7 side of grade head is provided with second level magneto 8, and magneto 8 side in the second level is provided with first order magneto 9.
In above structure, controller 1 sends out the orders such as booting, raising frequency, frequency reducing, unloading, shutdown control first order frequency converter
11 and second level frequency converter 10, first order frequency converter 11 and second level frequency converter 10 control frequency conversion cooling fan 2, first order head
4 and second level head 7 bring into operation, improve working efficiency.
In order to further increase working efficiency, controller 1 is carried out closely with first order frequency converter 11 by way of electric wire
Connection, first order frequency converter 11 closely connect with second level frequency converter 10 by way of supporting rack, barrel of oil and gas 5 with
Oil pressure pipe 6 is closely connected by way of connecting tube, oil pressure pipe 6 and first order head 4 by way of connecting tube into
Closely connection, first order head 4 are closely connect with first order magneto 9 by way of permanent magnetism coil row, the
Level-one head 4 and 7 mediate contact of second level head, second level head 7 is with second level magneto 8 by way of permanent magnetism coil
It is closely connected, first order head 4 is closely connect with pedestal 3 by way of bolt, second level head 7 and bottom
Seat 3 is closely connected by way of bolt, and pedestal 3 is carried out closely with frequency conversion cooling fan 2 by way of supporting rack
Connection.
The basic principles and main features and advantage of the utility model have been shown and described above.The technical staff of the industry
It should be appreciated that the present utility model is not limited to the above embodiments, the above embodiments and description only describe this
The principle of utility model, on the premise of not departing from the spirit and scope of the utility model, the utility model also has various change
And improvement, these various changes and improvements fall within the scope of the claimed invention.The utility model requires protection scope
It is defined by appending claims and equivalents.
Claims (5)
1. double-drive permanent-magnet frequency conversion two stages of compression screw air compressor control device, it is characterised in that：Including controller, frequency conversion cooling wind
Fan, pedestal are provided with barrel of oil and gas beside the controller, are provided with first order frequency converter beside the barrel of oil and gas, and described first
Second level frequency converter is provided with beside grade frequency converter, the barrel of oil and gas is provided with oil pressure pipe, is arranged beside the oil pressure pipe below
There is a frequency conversion cooling fan, the oil pressure pipe is provided with first order head below, and the is provided with beside the first order head
Two level head, the second level head side are provided with second level magneto, are provided with beside the second level magneto
First order magneto.
2. double-drive permanent-magnet frequency conversion two stages of compression screw air compressor control device according to claim 1, it is characterised in that：Institute
Controller is stated closely to be connect by way of electric wire with the first order frequency converter, the first order frequency converter with it is described
Second level frequency converter is closely connected by way of supporting rack.
3. double-drive permanent-magnet frequency conversion two stages of compression screw air compressor control device according to claim 1, it is characterised in that：Institute
It states barrel of oil and gas closely to be connect by way of connecting tube with the oil pressure pipe, the oil pressure pipe and the first order head
It is closely connected by way of connecting tube.
4. double-drive permanent-magnet frequency conversion two stages of compression screw air compressor control device according to claim 1, it is characterised in that：Institute
It states first order head closely to be connect by way of permanent magnetism coil with the first order magneto, the first order machine
Head and the second level head mediate contact.
5. double-drive permanent-magnet frequency conversion two stages of compression screw air compressor control device according to claim 1, it is characterised in that：Institute
It states second level head closely to be connect by way of permanent magnetism coil with the second level magneto, the first order machine
Head is closely connect with the pedestal by way of bolt, the side that the second level head passes through bolt with the pedestal
Formula is closely connected, and the pedestal is closely connect with the frequency conversion cooling fan by way of supporting rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721475188.0U CN207813924U (en) | 2017-11-08 | 2017-11-08 | Double-drive permanent-magnet frequency conversion two stages of compression screw air compressor control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721475188.0U CN207813924U (en) | 2017-11-08 | 2017-11-08 | Double-drive permanent-magnet frequency conversion two stages of compression screw air compressor control device |
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| Publication Number | Publication Date |
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| CN207813924U true CN207813924U (en) | 2018-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721475188.0U Active CN207813924U (en) | 2017-11-08 | 2017-11-08 | Double-drive permanent-magnet frequency conversion two stages of compression screw air compressor control device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058104A (en) * | 2018-10-20 | 2018-12-21 | 广东艾高装备科技有限公司 | Screw two stages of compression air compressor machine |
| CN109538474A (en) * | 2018-11-30 | 2019-03-29 | 上海智经企业服务中心 | A kind of connector of Two-stage Compression screw host |
| CN112377414A (en) * | 2020-11-13 | 2021-02-19 | 埃尔利德(广东)智能科技有限公司 | Dual-motor two-stage compression screw air compressor efficiency control system, method and equipment |
-
2017
- 2017-11-08 CN CN201721475188.0U patent/CN207813924U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058104A (en) * | 2018-10-20 | 2018-12-21 | 广东艾高装备科技有限公司 | Screw two stages of compression air compressor machine |
| CN109538474A (en) * | 2018-11-30 | 2019-03-29 | 上海智经企业服务中心 | A kind of connector of Two-stage Compression screw host |
| CN112377414A (en) * | 2020-11-13 | 2021-02-19 | 埃尔利德(广东)智能科技有限公司 | Dual-motor two-stage compression screw air compressor efficiency control system, method and equipment |
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