CN202017643U - Cutting machine and frequency conversion constant voltage control system thereof - Google Patents
Cutting machine and frequency conversion constant voltage control system thereof Download PDFInfo
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- CN202017643U CN202017643U CN2011200234491U CN201120023449U CN202017643U CN 202017643 U CN202017643 U CN 202017643U CN 2011200234491 U CN2011200234491 U CN 2011200234491U CN 201120023449 U CN201120023449 U CN 201120023449U CN 202017643 U CN202017643 U CN 202017643U
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- frequency
- cutting machine
- control system
- blower fan
- blower
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Abstract
The utility model discloses a frequency conversion constant voltage control system of a cutting machine, which comprises a frequency converter and a blower, wherein the output end of the frequency converter is connected with the motor input end of the blower; the frequency conversion constant voltage control system also includes a pressure transmitter mounted at the air intake of the blower; the output end of the pressure transmitter is connected with the input end of the frequency converter, so as to detect and transmit the air supply air pressure signal of the blower; and the frequency converter generates the corresponding output frequency as per the air supply air pressure signal of the blower, so as to adjust the rotating speed of the blower. The frequency conversion constant voltage control system of the cutting machine detects and feeds back the air supply air pressure of the blower to the frequency converter through the pressure transmitter, and adjusts the rotating speed through the frequency converter, thereby realizing the frequency conversion constant voltage closed cycle control on the air pressure of the blower; and the frequency conversion constant voltage control system can reflect the actual condition in a more real-time and precise way and has better electricity-saving effect as compared with the conventional control system of the cutting machine.
Description
Technical field
The utility model relates to the VFC field, relates to a kind of cutting machine and frequency-changing pressure stabilizing control system thereof specifically.
Background technique
At present general in the world mechanical type adsorption system is to come adsorption production by equipment institute with system's negative pressure of blower fan running formation, to reach the purpose of equipment work (cutting, surface treatment, encapsulation etc.).The variation of load is bigger to the influence of the motor rotation of blower fan in the working procedure, is specially: when system's negative-pressure adsorption, and blower fan full load running; When the single absorption of system or zone absorption, frequent starting, a large amount of energy consumptions is in the process of damming of baffle plate, valve, and aspects such as this economize on electricity to blower fan, circuit protection, stability cause bigger adverse effect.In view of this, be necessary to design a kind of new cutting machine and frequency-changing pressure stabilizing control system thereof.
The model utility content
The purpose of this utility model provides a kind of cutting machine and frequency-changing pressure stabilizing control system thereof, can effectively improve energy-saving effect.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of cutting machine frequency-changing pressure stabilizing control system, comprise frequency variator and blower fan, the output terminal of described frequency variator connects the motor input terminals of described blower fan, also comprise pressure transmitter, be installed on described blower fan wind collecting port, the output terminal of described pressure transmitter connects the input end of described frequency variator, be used for detecting and wind conveyer air-supply air pressure signal, described frequency variator generates corresponding output frequency according to this blower fan air-supply air pressure signal, regulates the rotating speed of described blower fan in view of the above.
More preferably, described frequency variator is provided with control panel, is provided with plurality of keys above, is used to change frequency device initial parameters.
More preferably, described frequency variator is provided with display screen, is used for display frequency device Operational Limits.
More preferably, described frequency variator is built-in with MCU, wherein writes corresponding relation algorithm between blower fan air-supply air pressure and the output frequency.
More preferably, described frequency variator is provided with COM1, is used to connect external controller.
More preferably, comprise the Frequency Converter Control Wiring module, the output terminal of described pressure transmitter is connected to the input end of described frequency variator by described Frequency Converter Control Wiring module.
More preferably, described Frequency Converter Control Wiring module is connected to the safety protection relay.
More preferably, the airduct end of described blower fan is provided with horn mouth, and described blower fan wind collecting port is positioned on the described horn mouth.
On this basis, the cutting machine that the utility model provides comprises that at least one cover negative pressure forms system, and described negative pressure formation system comprises above-mentioned cutting machine frequency-changing pressure stabilizing control system.
More preferably, the air-supply outlet cancellation baffle plate of the air-supply of described blower fan inlet and/or described blower fan.
Compared with prior art, the utility model detects blower fan air-supply air pressure and feeds back to frequency variator by pressure transmitter, regulate rotating speed by frequency variator again, realize the frequency-changing pressure stabilizing closed loop control of blower fan air pressure, with respect to the conventional cutter control system, can be more real-time, accurate response virtual condition more, power savings is also better.The utility model is controlled in real time by the rotating speed to blower fan, when reaching the single absorption of requirement solution adsorption system of constant voltage adsorption force, regional absorption, frequent starting, and the problem of aspects such as the economize on electricity of blower fan, circuit protection, stability.Especially, having cancelled the baffle plate of regulating inlet or outlet by air-supply, being reduced in the energy consumption in the process of damming of baffle plate, valve, thereby reaching purposes such as economize on electricity, system protection.
Description of drawings
Fig. 1 is the composition frame chart of the utility model cutting machine frequency-changing pressure stabilizing control system;
Fig. 2 is the circuit and the ventilation diagram of cutting machine frequency-changing pressure stabilizing control system shown in Figure 1;
Fig. 3 is the electrical connection diagram of cutting machine frequency-changing pressure stabilizing control system shown in Figure 1.
Embodiment
Core of the present utility model is, detects and wind conveyer air-supply air pressure signal by pressure transmitter, feeds back to frequency variator and generates corresponding output frequency, regulates the rotating speed of described blower fan.
Described pressure transmitter is the parameters such as pressure, negative pressure and absolute pressure that are mainly used in measurement gas, liquid and steam, then with the output of its conversion DC signal.The model of pressure pressure transmitter has polytype, can not repeat them here according to actual conditions from market purchasing.
For the ease of understanding the technical solution of the utility model, further describe below in conjunction with accompanying drawing and specific embodiment.
Referring to Fig. 1, be the composition frame chart of the utility model cutting machine frequency-changing pressure stabilizing control system.This frequency-changing pressure stabilizing control system comprises frequency variator 1, blower fan 2 and pressure transmitter 3, and wherein: the output terminal of frequency variator 1 connects the motor input terminals of blower fan 2; Pressure transmitter 3 is installed on the wind collecting port of blower fan 2, its output terminal connects the input end of frequency variator 1, be used to detect the also air-supply air pressure signal of wind conveyer 2, frequency variator 1 generates corresponding output frequency according to the air-supply air pressure signal of this blower fan 2, regulates the rotating speed of blower fan 2 in view of the above.
Referring to Fig. 2, the circuit and the wind path of expression the utility model cutting machine frequency-changing pressure stabilizing control system.Be provided with Frequency Converter Control Wiring module 4, it is provided with I/O plate 401, is used for the frequency variator start detection; And be connected to safety protection relay 5, carry out safety protection in case of necessity.The output terminal of this pressure transmitter 3 is connected to the input end of frequency variator 1 by Frequency Converter Control Wiring module 4, makes things convenient for pressure transmitter 3 and frequency variator 1 wiring, and improves the stability of a system.
Above-mentioned frequency variator 1 is provided with control panel 101 and display screen 102, wherein: be provided with several buttons above the control panel 101, be used to change frequency device initial parameters; Display screen 102 can be liquid crystal display panel, is used for display frequency device Operational Limits.
Usually, frequency variator is built-in with MCU, wherein writes corresponding relation algorithm between blower fan air-supply air pressure and the output frequency; Like this, frequency variator 1 just can generate corresponding output frequency according to the blower fan air pressure signal of blowing, and regulates the rotating speed of blower fan in view of the above.Certainly, also can connect external controller (scheming not shown), not repeat them here by COM1.
As shown in Figure 2, airduct 6 ends of blower fan 2 are provided with horn mouth 7, and the blower fan wind collecting port is positioned on the horn mouth 7, and promptly pressure transmitter is installed on the horn mouth 7, guarantee the reliability of sampled data.
Referring to Fig. 3, the electrical connection diagram of expression the utility model cutting machine frequency-changing pressure stabilizing control system.Wherein relate to power switch 8, vacuum pump 9, voltage stabilizer 10, X-axis servo-system 11, Y-axis servo-system 12, uninterruptable power source 13,24V switch power 14 ,+part such as 12V switch power 15, projection equipment 16, ventilating fan 17, lighting installation 18, servocontrol 19, governor circuit 20, concrete wiring is pressed Fig. 3 and is got final product, and repeats no more.
The utility model cutting machine can adopt many cover negative pressure to form system, below is a product Integrated Solution, and equipment master control system wherein is the PC control platform that forms behind integrated each motion control card of process control machine, is summarized as follows:
1, parts type selecting
2 of blower fans: 380V 50/60Hz 9KW
2 of pressure transmitters: specification PTP708 range-30KP-0KP input DC 10-30V output DC2-10V precision 0.5%FS
2 in frequency variator: 3PH 380V/50-60HZ 11KW P type machine
I/O plate: 32
Supplementary equipment such as airduct, horn mouth, air duct are omitted at this.
2, component function and correlation
Blower fan: produce negative pressure by wheel rotation, in system, belong to performance element.
Pressure transmitter: by bell-mouthed air pressure is detected, real-time feedback atmospheric pressure value belongs to signal gathering unit in system.
Frequency variator: control fan starting, stop and the rotating speed size, in system, belong to control unit.
I/O plate: be used for the frequency variator start detection, belong to signal and send, accept the unit.
3, product working principle
The startup of Frequency Converter Control blower fan, rotating speed, stop; Whether the I/O plate detects frequency variator and starts, and does not start then output alarm signal and feeds back on the operating platform by software; Pressure transmitter detects atmospheric pressure value and the real-time feedback in the absorption horn mouth; Frequency variator is controlled rotation speed of fan according to the adjusting output frequency of the feedback correspondence of pressure transmitter, and the force value that arrives in the absorption horn mouth is constant; Realize the constant voltage control of absorption thus, compare the wind pressure value of the feedback reality that traditional converter technique more can be real-time.
4, transducer operational parameter and relative parameters setting
The parameter of frequency variator is provided with as follows:
F0.00=04 frequency input signal is selected: the VCI analog amount is set (VCI-GND)
F0.02=2 action command channel selecting: the terminal action command controls that but panel STOP is effective.
The F0.08=3.5 time for acceleration
F0.09=7.5 deceleration time
F3.30=0 power transfer relay function is selected: frequency variator is in service
F7.02=6 feeds back maximum given voltage
The maximum given frequency of F7.03=60 VCI
5, test result
The function admirable of the said goods, particularly good energy-conserving effect:
(1) power consumption is energy-conservation good.Be provided with under 2 9KW blower fan situations, when rotating speed drop to former rotating speed 4/5 the time, its power consumption is 6.4 kilowatts, power saving 28.89%; When rotating speed drop to former rotating speed 1/2 the time, its power consumption is 4.86 kilowatts, power saving 46%; Start moment 30 times, economize on electricity 3%; According to different behaviours in service, on average economize on electricity 15%～20% approximately, except that reaching the constant requirement of adsorptive pressure, reach energy-conservation effect simultaneously.
(2) power factor compensation is further energy-conservation.After using this system, because the effect of the inner filter capacitor of frequency variator, thereby reduced reactive loss, increased the active power of electrical network.
(3) soft start is further energy-conservation.After using this system, utilize the soft start function of frequency variator that inrush current will be started from scratch, maximum value also is no more than rated current, realizes energy-saving effect; Simultaneously, also alleviated, prolonged the working life of equipment and valve, saved the maintenance cost of equipment to the impact of electrical network with to the requirement of power supply capacity.
(4) overall performance is good.Native system and traditional converter technique have following advantage: feed back to frequency variator by pressure transmitter real-time detecting system wind pressure of work, regulate rotating speed by frequency variator again, thereby more real-time than traditional frequency conversion technology, react virtual condition more accurately, power savings is also better.
The concrete test result of product sees Table one.
Table one, test result
More than the utility model is described in detail, used specific case in the literary composition principle of the present utility model and mode of execution set forth, above embodiment's explanation just is used for help understanding method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (10)
1. cutting machine frequency-changing pressure stabilizing control system, comprise frequency variator and blower fan, the output terminal of described frequency variator connects the motor input terminals of described blower fan, it is characterized in that, also comprise pressure transmitter, be installed on described blower fan wind collecting port, the output terminal of described pressure transmitter connects the input end of described frequency variator, be used for detecting and wind conveyer air-supply air pressure signal, described frequency variator generates corresponding output frequency according to this blower fan air-supply air pressure signal, regulates the rotating speed of described blower fan in view of the above.
2. cutting machine frequency-changing pressure stabilizing control system as claimed in claim 1 is characterized in that described frequency variator is provided with control panel, is provided with plurality of keys above, is used to change frequency device initial parameters.
3. cutting machine frequency-changing pressure stabilizing control system as claimed in claim 1 is characterized in that described frequency variator is provided with display screen, is used for display frequency device Operational Limits.
4. cutting machine frequency-changing pressure stabilizing control system as claimed in claim 1 is characterized in that described frequency variator is built-in with MCU, wherein writes corresponding relation algorithm between blower fan air-supply air pressure and the output frequency.
5. cutting machine frequency-changing pressure stabilizing control system as claimed in claim 1 is characterized in that described frequency variator is provided with COM1, is used to connect external controller.
6. cutting machine frequency-changing pressure stabilizing control system as claimed in claim 1 is characterized in that, comprises the Frequency Converter Control Wiring module, and the output terminal of described pressure transmitter is connected to the input end of described frequency variator by described Frequency Converter Control Wiring module.
7. cutting machine frequency-changing pressure stabilizing control system as claimed in claim 6 is characterized in that described Frequency Converter Control Wiring module is connected to the safety protection relay.
8. as each described cutting machine frequency-changing pressure stabilizing control system of claim 1～7, it is characterized in that the airduct end of described blower fan is provided with horn mouth, described blower fan wind collecting port is positioned on the described horn mouth.
9. cutting machine comprises that at least one cover negative pressure forms system, it is characterized in that, described negative pressure formation system comprises as each described cutting machine frequency-changing pressure stabilizing control system of claim 1～8.
10. cutting machine as claimed in claim 9 is characterized in that, the air-supply outlet cancellation baffle plate of the air-supply inlet of described blower fan and/or described blower fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200234491U CN202017643U (en) | 2011-01-25 | 2011-01-25 | Cutting machine and frequency conversion constant voltage control system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200234491U CN202017643U (en) | 2011-01-25 | 2011-01-25 | Cutting machine and frequency conversion constant voltage control system thereof |
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| Publication Number | Publication Date |
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| CN202017643U true CN202017643U (en) | 2011-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011200234491U Expired - Fee Related CN202017643U (en) | 2011-01-25 | 2011-01-25 | Cutting machine and frequency conversion constant voltage control system thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435049A (en) * | 2011-10-27 | 2012-05-02 | 西王药业有限公司 | Anhydrous dextrose drying device and drying process |
| CN105883465A (en) * | 2014-05-09 | 2016-08-24 | 拓卡奔马机电科技有限公司 | Cutting bed automatic conveying method |
| CN108107932A (en) * | 2018-02-28 | 2018-06-01 | 巴彦淖尔西部铜业有限公司 | A kind of air blower ventilation of constant pressure electric-control system and its electric-control method |
-
2011
- 2011-01-25 CN CN2011200234491U patent/CN202017643U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435049A (en) * | 2011-10-27 | 2012-05-02 | 西王药业有限公司 | Anhydrous dextrose drying device and drying process |
| CN102435049B (en) * | 2011-10-27 | 2014-12-31 | 西王药业有限公司 | Anhydrous dextrose drying device and drying process |
| CN105883465A (en) * | 2014-05-09 | 2016-08-24 | 拓卡奔马机电科技有限公司 | Cutting bed automatic conveying method |
| CN105883465B (en) * | 2014-05-09 | 2018-02-06 | 拓卡奔马机电科技有限公司 | The automatic of cutting crosses window method |
| CN108107932A (en) * | 2018-02-28 | 2018-06-01 | 巴彦淖尔西部铜业有限公司 | A kind of air blower ventilation of constant pressure electric-control system and its electric-control method |
| CN108107932B (en) * | 2018-02-28 | 2023-12-05 | 巴彦淖尔西部铜业有限公司 | Constant-pressure air supply power control system of blower and electric control method thereof |
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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: 20111026 Termination date: 20120125 |