CN203049671U - Constant-pressure liquid supply control system - Google Patents
Constant-pressure liquid supply control system Download PDFInfo
- Publication number
- CN203049671U CN203049671U CN 201220558824 CN201220558824U CN203049671U CN 203049671 U CN203049671 U CN 203049671U CN 201220558824 CN201220558824 CN 201220558824 CN 201220558824 U CN201220558824 U CN 201220558824U CN 203049671 U CN203049671 U CN 203049671U
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- constant
- pressure
- liquid
- liquid supply
- control system
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- Expired - Fee Related
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Abstract
The utility model relates to a constant-pressure liquid supply control system and aims to provide a liquid configuration device. The constant-pressure liquid supply control system disclosed by the utility model is characterized by consisting of a variable frequency cabinet, a pressure sensor, a liquid level sensor and a liquid pump unit. According to the utility model, liquid supply adopts a stepless regulating manner; no loss is generated in the regulating process; electricity is saved by 20 to 46 percent; and water is saved by 10 to 20 percent. The constant-pressure liquid supply control system has stable working performance; variable frequency soft start can be implemented; no impact current is generated; a liquid hammer effect of the system is eliminated; and the pressure of a pipe network is kept constant.
Description
Technical field
The utility model aims to provide a kind of liquid inking device.
Background technology
That constant pressure water supply system has is energy-conservation, reliably reach unattended advantage, has therefore obtained to use widely in water system.Domestic research at constant pressure water supply is a lot, and research adopts PLC and frequency converter serial communication to constitute constant pressure water supply system as document " based on the constant pressure water supply system of PLC and frequency converter serial communication "; Document " based on the full-automatic frequency conversion constant pressure water supply system of PLC control " adopts programmable controller PLC and frequency conversion speed-adjusting, develops the fully-automatic constant pressure water system; Document " design of intelligent frequency-conversion constant pressure water supply system and realization " is based on PLC, frequency converter and computer technology, and design is resided in BP ANN (Artificial Neural Network) Control strategy among the variable frequency control, realizes the online adjustment of pid parameter.
Summary of the invention
The utility model aims to provide a kind of easy to operate, reliable constant-pressure liquid supply control system.
A kind of constant-pressure liquid supply control system described in the utility model is characterized in that by frequency conversion tank, pressure sensor, and liquid level sensor and liquid pump assembly are formed.
Preferably, be provided with efficient mute type frequency converter, programmable logic controller and ECU in the frequency conversion tank.
More preferably, liquid level sensor is electrically connected with programmable logic controller, and pressure sensor is electrically connected with efficient mute type frequency converter, in the liquid pump assembly each liquid pump respectively with efficient mute type frequency converter, ECU electrical connection.
The utility model liquid supply step-less adjustment, and regulate lossless, the economize on electricity 20-46%, the water saving 10-20%.Its stable work in work can realize frequency conversion soft start, and non-impact current is eliminated system liquid hammer effect, keeps the pipe network constant pressure.
Description of drawings
Fig. 1 is the FB(flow block) of embodiment one.
The specific embodiment
Embodiment one.
A kind of constant-pressure liquid supply control system of the present utility model, by frequency conversion tank, pressure sensor, liquid level sensor and liquid pump assembly are formed.Wherein be provided with efficient mute type frequency converter, programmable logic controller and ECU in the frequency conversion tank.The liquid pump assembly is made up of 7 liquid pumps.In native system, liquid level sensor is electrically connected with programmable logic controller, and pressure sensor is electrically connected with efficient mute type frequency converter, in the liquid pump assembly each liquid pump respectively with efficient mute type frequency converter, ECU electrical connection.
After system power-up, start a liquid pump frequency conversion operation, start a liquid pump frequency conversion operation, pressure sensor feeds back to the hydraulic pressure signal in the Liquid tube net in the programmable logic controller, programmable logic controller compares the hydraulic pressure of this signal and user preset, control efficient mute type frequency converter and regulate the rotating speed of liquid pump, keep pipe network hydraulic pressure on default hydraulic pressure, when a liquid pump work frequency reaches highest frequency, if pipe network hydraulic pressure does not still reach when presetting hydraulic pressure, then this pump is switched to power frequency operation, efficient mute type frequency converter is second liquid pump control of starting and converting operation thereof automatically, after this, does not still reach requirement as pressure, then successively with the 3rd, the 4th liquid pump switches to power frequency up to preset pressure by frequency conversion, otherwise if pipe network water pressure is during greater than default hydraulic pressure, controller can make efficient mute type frequency converter frequency reduce, can cut away a power frequency liquid pump automatically when frequency is lower than the system that prescribes a time limit down, make pipe network hydraulic pressure keep constant all the time.
Claims (1)
1. constant-pressure liquid supply control system, it is characterized in that by frequency conversion tank, pressure sensor, liquid level sensor and liquid pump assembly are formed, and it is characterized in that being provided with in the frequency conversion tank efficient mute type frequency converter, programmable logic controller and ECU, liquid level sensor is electrically connected with programmable logic controller, pressure sensor is electrically connected with efficient mute type frequency converter, in the liquid pump assembly each liquid pump respectively with efficient mute type frequency converter, ECU electrical connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220558824 CN203049671U (en) | 2012-10-29 | 2012-10-29 | Constant-pressure liquid supply control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220558824 CN203049671U (en) | 2012-10-29 | 2012-10-29 | Constant-pressure liquid supply control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203049671U true CN203049671U (en) | 2013-07-10 |
Family
ID=48732639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220558824 Expired - Fee Related CN203049671U (en) | 2012-10-29 | 2012-10-29 | Constant-pressure liquid supply control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203049671U (en) |
-
2012
- 2012-10-29 CN CN 201220558824 patent/CN203049671U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHAANXI GAOHUA ZHIBEN CHEMICAL TECHNOLOGY CO., LTD Free format text: FORMER NAME: SHAANXI LIANMENG LOGISTICS CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 710065 Shaanxi city of Xi'an province high tech Zone Feng Hui Road No. 36 Oak Street Block B room 10406 Patentee after: SHAANXI GAOHUA ZHIBEN CHEMICAL SCIENCE & TECHNOLOGY CO., LTD. Address before: 710065 Shaanxi city of Xi'an province high tech Zone Feng Hui Road No. 36 Oak Street Block B room 10406 Patentee before: Shaanxi Alliance Logistics Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20131029 |