CN203384022U - Frequency conversion and constant voltage control system of emulsion pump - Google Patents
Frequency conversion and constant voltage control system of emulsion pump Download PDFInfo
- Publication number
- CN203384022U CN203384022U CN201320405677.4U CN201320405677U CN203384022U CN 203384022 U CN203384022 U CN 203384022U CN 201320405677 U CN201320405677 U CN 201320405677U CN 203384022 U CN203384022 U CN 203384022U
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- emulsion pump
- synchronous motor
- constant voltage
- control system
- magnet synchronous
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Abstract
The utility model discloses a frequency conversion and constant voltage control system of an emulsion pump. The system comprises a frequency converter, a permanent-magnet synchronous motor, a speed reducer, an emulsion pump and a pressure sensor, wherein a power source output terminal of the frequency converter is connected with a power supply input terminal of the permanent-magnet synchronous motor; a power output shaft of the permanent-magnet synchronous motor is in transmission connection with a power input shaft of the emulsion pump through the speed reducer; a liquid discharge opening of the emulsion pump is communicated with a liquid supply pipeline of coal mine supporting equipment; and the pressure sensor is arranged in the position of a drain pipe orifice of the liquid supply pipeline, and a signal output terminal of the pressure sensor is connected with a control signal input terminal of the frequency converter. The frequency conversion and constant voltage control system of the emulsion pump has the benefits as follows: an emulsion pump station adopts the frequency conversion and constant voltage control system, so that the operational performance is stable and reliable, and the energy-saving effect is remarkable; and further, the service life of each of the emulsion pump and the liquid transportation pipeline is prolonged.
Description
Technical field
The utility model relates to the automatic feeding technology of emulsified liquid, especially relates to the emulsion pump frequency conversion constant voltage control system.
Background technique
Emulsion pump is the corollary equipment of support apparatus in coal mine as hydraulic support, for support apparatus provides pressure, is the power source of support apparatus.Traditional working method is: after energising, emulsion power pack rotatably supplies with emulsified liquid, no matter whether support apparatus needs fluid injection, emulsion power pack all turns round with rated speed.The emulsified liquid of confessing during not fluid injection returns in the emulsified liquid liquid tank by unloading valve, this process has not only been wasted electric energy, increased the mechanical wear of pump, make liquid-transport pipe-line be subject to the working life that pump and pipeline have been shortened in large impact after energising always, and the temperature of emulsified liquid is raise, reduce the safety coefficient of support apparatus.
Summary of the invention
The emulsion pump frequency conversion constant voltage control system that provides a kind of power consumption low is provided the utility model purpose.
For achieving the above object, the utility model is taked following technical proposals:
Emulsion pump frequency conversion constant voltage control system described in the utility model, be comprised of frequency variator, permanent magnet synchronous motor, retarder, emulsion pump, pressure transducer; Described converter power supply output terminal is connected with the power input of described permanent magnet synchronous motor; The permanent magnet synchronous motor pto＝power take-off is in transmission connection by the power input shaft of retarder and described emulsion pump; The liquid port of emulsion pump is connected with the feed liquid pipeline of support apparatus in coal mine; Described pressure transducer is arranged on the fluid mouth of pipe position of described feed liquid pipeline, and the signal output part of pressure transducer is connected with the control signal input end of frequency variator.
The beneficial effects of the utility model are mainly reflected in: emulsion power pack takes the frequency conversion constant voltage control system ride quality reliable and stable, and energy-saving effect is obvious.And improved the working life of emulsion pump and liquid-transport pipe-line.
The accompanying drawing explanation
Fig. 1 is the utility model embodiment's structural representation.
Embodiment
As shown in Figure 1, emulsion pump frequency conversion constant voltage control system described in the utility model, be comprised of frequency variator, permanent magnet synchronous motor, retarder, emulsion pump, pressure transducer; Described converter power supply output terminal is connected with the power input of described permanent magnet synchronous motor; The permanent magnet synchronous motor pto＝power take-off is in transmission connection by the power input shaft of retarder and described emulsion pump; The liquid port of emulsion pump is connected with the feed liquid pipeline of support apparatus in coal mine; Described pressure transducer is arranged on the fluid mouth of pipe position of described feed liquid pipeline, and the signal output part of pressure transducer is connected with the control signal input end of frequency variator.
The utility model working principle is summarized as follows:
The abutment pressure of the pressure transducer Real-time Collection support apparatus in coal mine by being arranged on feed liquid pipeline fluid mouth of pipe place, and the force value that this pressure signal feeds back to frequency variator and setting is compared to i.e.: the force value of the force value of pressure transducer Real-time Collection-setting; When comparison value is less than 1, the frequency variator output frequency improves, and the rotating speed of controlling permanent magnet synchronous motor output progressively improves; When comparison value is greater than 1, the frequency variator output frequency reduces, and the rotating speed of controlling permanent magnet synchronous motor output progressively reduces.Thereby reach: when support apparatus in coal mine needs fluid injection, emulsion pump work provides hydraulic coupling to guarantee production; When the needs reservoir quantity is large, the rotating speed of emulsion pump improves; When needs reservoir quantity hour, the rotating speed of emulsion pump reduces.Frequency variator changes output frequency control emulsion pump rotating speed in real time according to the signal of pressure transducer in the course of the work, and then changes the abutment pressure of support apparatus in coal mine, and actual support pressure is approached to the target pressure value of setting.
Claims (1)
1. an emulsion pump frequency conversion constant voltage control system, is characterized in that: frequency variator, permanent magnet synchronous motor, retarder, emulsion pump, pressure transducer, consist of; Described converter power supply output terminal is connected with the power input of described permanent magnet synchronous motor; The permanent magnet synchronous motor pto＝power take-off is in transmission connection by the power input shaft of retarder and described emulsion pump; The liquid port of emulsion pump is connected with the feed liquid pipeline of support apparatus in coal mine; Described pressure transducer is arranged on the fluid mouth of pipe position of described feed liquid pipeline, and the signal output part of pressure transducer is connected with the control signal input end of frequency variator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320405677.4U CN203384022U (en) | 2013-07-09 | 2013-07-09 | Frequency conversion and constant voltage control system of emulsion pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320405677.4U CN203384022U (en) | 2013-07-09 | 2013-07-09 | Frequency conversion and constant voltage control system of emulsion pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203384022U true CN203384022U (en) | 2014-01-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320405677.4U Expired - Lifetime CN203384022U (en) | 2013-07-09 | 2013-07-09 | Frequency conversion and constant voltage control system of emulsion pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203384022U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410715A (en) * | 2013-07-09 | 2013-11-27 | 郑州飞机装备有限责任公司 | Frequency-conversion constant-voltage control system of emulsion pump |
-
2013
- 2013-07-09 CN CN201320405677.4U patent/CN203384022U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410715A (en) * | 2013-07-09 | 2013-11-27 | 郑州飞机装备有限责任公司 | Frequency-conversion constant-voltage control system of emulsion pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140108 |