CN205171590U - No sensing constant pressure water supply uses automatic calibration system - Google Patents
No sensing constant pressure water supply uses automatic calibration system Download PDFInfo
- Publication number
- CN205171590U CN205171590U CN201521011220.0U CN201521011220U CN205171590U CN 205171590 U CN205171590 U CN 205171590U CN 201521011220 U CN201521011220 U CN 201521011220U CN 205171590 U CN205171590 U CN 205171590U
- Authority
- CN
- China
- Prior art keywords
- water pump
- water supply
- motor
- host computer
- automatic calibration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
The utility model provides a no sensing constant pressure water supply uses automatic calibration system, the utility model relates to an automatic calibration system is used to the water pump. At present, the demarcation of no sensing constant pressure water supply system is inaccurate, the reliability is poor. The utility model discloses a host computer, converter, motor, water pump, governing valve, pressure sensor, PLC, PLC and host computer, converter, governing valve, pressure sensor are connected, converter and motor formula structure as an organic whole, the water pump passes through the shaft coupling and links to each other with the motor, water pump delivery port department is arranged in to the governing valve, and pressure sensor locates the water pump exit, power, the rotational speed of value, motor is opened to host computer record valve, the relation of actual pressure is markd in order to realize the constant voltage. This technical scheme marks to automize and goes on, and calibration efficiency is high, and the demarcation accuracy is good.
Description
Technical field
The utility model relates to a kind of water pump automatic calibration system, especially a kind of without sensing constant pressure water supply automatic calibration system.
Background technology
Water pump is widely used, and as fields such as industry, agricultural, national defense construction, and water pump system water supply control program is various, has constant voltage, constant flow, constant ratio etc.The quality of control program directly affects the embodiment of pump performance, indirectly determines the height of production efficiency.
In constant pressure water supply controls, system often adopts PLC to read water pump discharge pressure sensor values, regulates pump rotary speed simultaneously, makes outlet pressure equal range pressure value, realize the object of water pump constant pressure water supply.This system automation degree controlled by gear is not high, and precision is not high, and in addition, sensor cost is higher, and along with the lengthening of service time, the change of extraneous factor, easily causes faulty sensor, therefore greatly reduces the reliability of system.Constant flow and constant ratio control to also exist equally that automaticity is not high, precision is not high, the flimsy problem of sensor.
Utility model content
The technical assignment of the technical problems to be solved in the utility model and proposition carries out improving to prior art and improves, and provides a kind of without sensing constant pressure water supply automatic calibration system and method for work thereof, demarcates accurate, reliable object to reach.For this reason, the utility model takes following technical scheme.
A kind of without sensing constant pressure water supply automatic calibration system, it is characterized in that: comprise host computer, frequency converter, motor, water pump, control valve, pressure sensor, PLC; Described PLC is connected with host computer, frequency converter, control valve, pressure sensor; Described frequency converter and motor are integral type structure; Described water pump is connected with motor by shaft coupling; Described control valve is placed in pump outlet place, and described pressure sensor is located at exit of pump and is sentenced the pressure measuring mouth of a river place.PLC controls to adjust valve opening after receiving the instruction of host computer control valve valve opening, and read the actual pressure that pressure sensor records, signal transmission, to frequency converter, regulates motor speed by frequency converter; When nominal pressure is equal with actual pressure, PLC asks power converter output and tach signal, and the power of now motor, rotating speed, actual pressure are fed back to host computer, host computer record valve open value, the power of motor, rotating speed, actual pressure relation demarcate to realize constant voltage.Described automatic calibration system has been demarcated new for after pressure sensor water pump system, new can according to the object of the power of frequency converter timing signal record, rotating speed, pressure and the relational implementation constant pressure water supply between them thereof without sensor water pump system, in addition, automatic calibration system can also detect come into operation without some nominal datas when constant pressure water supply of sensor water pump system the need of correction.At timing signal, know actual pressure by pressure sensor, calibration system sets up the relation of the power of motor, rotating speed, valve opening, outlet pressure, and demarcation can automatic business processing, and it is high to demarcate efficiency, and it is good to demarcate accuracy.When water pump constant pressure water supply, the work of water pump is controlled according to the data of calibration system acquisition, without the need to obtaining the data of pressure sensor during the work of water pump constant pressure water supply system, just the outlet pressure of water pump can be known by the power of motor, rotating speed, valve opening, so water pump constant pressure water supply system just can remove pressure sensor, reduce the cost of water pump constant pressure water supply equipment, improve the reliability of water pump constant pressure water supply system, avoid pressure sensing because of the working time long, and malfunctioning situation occurs; Also improve water pump constant pressure water supply system automaticity, precision simultaneously.
As improving further and supplementing technique scheme, the utility model also comprises following additional technical feature.
Described host computer by serial ports and PLC communication, to realize information interaction.
Described PLC by serial ports and inverter communication, to realize the mutual of information.
Also comprise flow transmitter, described flow transmitter is located at exit of pump and is sentenced the flow measuring mouth of a river place, and flow transmitter is connected with PLC.Flow transmitter flow value is fed back to host computer to provide foundation when drawing flow value and parameter-relation chart by PLC.
Beneficial effect: the utility model can realize water pump constant pressure water supply system automatic Calibration, and operating efficiency is high, and demarcation smoothness is good.The utility model provides human-computer interaction interface simultaneously, and easy to operate, can realize showing the graph of a relation between the data such as power, rotating speed in real time, intuitive is strong.
Accompanying drawing explanation
Fig. 1 is a kind of System's composition figure of the present utility model.
Fig. 2 is another kind of System's composition figure of the present utility model.
In figure: 1-host computer; 2-frequency converter; 3-motor; 4-water pump; 5-control valve; 6-outlet flow scale; 7-delivery gauge; 8-PLC.
Detailed description of the invention
Below in conjunction with Figure of description, the technical solution of the utility model is described in further detail.
Embodiment one:
As shown in Figure 1, the utility model comprises host computer 1, frequency converter 2, motor 3, water pump 4, control valve 5, pressure sensor 7, PLC8; Described PLC8 is connected with host computer 1, frequency converter 2, control valve 5, pressure sensor 7; Described frequency converter 2 and motor 3 are integral type structure; Described water pump 4 is connected with motor 3 by shaft coupling; Described control valve 5 is placed in pump outlet place, and described pressure sensor 7 is located at water pump 4 exit to measure the pressure of water outlet; PLC8 controls to adjust valve 5 aperture after receiving the instruction of host computer control valve 5 valve opening, and read the actual pressure that pressure sensor records, signal transmission, to frequency converter 2, regulates motor 3 rotating speed by frequency converter 2; When nominal pressure is equal with actual pressure, PLC8 asks power converter output and tach signal, and the power of now motor, rotating speed, actual pressure are fed back to host computer 1, host computer record valve open value, the power of motor, rotating speed, actual pressure relation demarcate to realize constant voltage.
For improving the accuracy of demarcating, frequency converter 2 is pump motor special converter, and motor 3 designs for integral type, has the optimized feature of performance parameters.
For improving human-computer interaction, this automatic calibration system take graphic user interface as host computer development platform, and this platform can allow user realize simple, visual operation.
In order to realize the mutual of information, described host computer 1 is by serial ports and PLC8 communication; Described PLC8 is by serial ports and frequency converter 2 communication.
Embodiment two:
As shown in Figure 2, be with embodiment one difference: also comprise flow transmitter 6 without sensing constant pressure water supply automatic calibration system, described flow transmitter 6 is located at water pump 4 exit to measure the flow of water outlet, and flow transmitter 6 is connected with PLC; Flow transmitter 6 flow value is fed back to host computer to provide foundation when drawing flow value and parameter-relation chart by PLC.
One shown in above Fig. 1,2 is specific embodiment of the utility model without sensing constant pressure water supply automatic calibration system; the utility model substantive distinguishing features and progress are embodied; can according to the use needs of reality; under enlightenment of the present utility model; it is carried out to the equivalent modifications of the aspect such as shape, structure, all at the row of the protection domain of this programme.
Claims (4)
1. without a sensing constant pressure water supply automatic calibration system, it is characterized in that: comprise host computer (1), frequency converter (2), motor (3), water pump (4), control valve (5), pressure sensor (7), PLC (8); Described PLC(8) be connected with host computer (1), frequency converter (2), control valve (5), pressure sensor (7); Described frequency converter (2) and motor (3) are integral type structure; Described water pump (4) is connected with motor (3) by shaft coupling; Described control valve (5) is placed in pump outlet place, and described pressure sensor (7) is located at water pump (4) exit to measure the pressure of water outlet.
2. according to claim 1 a kind of without sensing constant pressure water supply automatic calibration system, it is characterized in that: described host computer (1) is by serial ports and PLC(8) communication, to realize information interaction.
3. according to claim 1 a kind of without sensing constant pressure water supply automatic calibration system, it is characterized in that: described PLC(8) by serial ports and frequency converter (2) communication, to realize the mutual of information.
4. according to claim 1 a kind of without sensing constant pressure water supply automatic calibration system, it is characterized in that: also comprise flow transmitter (6), described flow transmitter (6) is located at water pump (4) exit to measure the flow of water outlet, and flow transmitter (6) is connected with PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521011220.0U CN205171590U (en) | 2015-12-08 | 2015-12-08 | No sensing constant pressure water supply uses automatic calibration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521011220.0U CN205171590U (en) | 2015-12-08 | 2015-12-08 | No sensing constant pressure water supply uses automatic calibration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205171590U true CN205171590U (en) | 2016-04-20 |
Family
ID=55735597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521011220.0U Active CN205171590U (en) | 2015-12-08 | 2015-12-08 | No sensing constant pressure water supply uses automatic calibration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205171590U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107675748A (en) * | 2017-10-31 | 2018-02-09 | 芜湖锐华暖通科技有限公司 | A kind of intelligent water source and fluid automatic control device |
-
2015
- 2015-12-08 CN CN201521011220.0U patent/CN205171590U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107675748A (en) * | 2017-10-31 | 2018-02-09 | 芜湖锐华暖通科技有限公司 | A kind of intelligent water source and fluid automatic control device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105386487A (en) | Automatic calibration system for sensor-less constant-pressure water supply and working method of automatic calibration system | |
| CN203298807U (en) | Roadway air volume measuring instrument | |
| CN205100258U (en) | Deep cement stirring pile driving construction data monitoring device | |
| CN102621032A (en) | Automatic tester for gas content in coal gas | |
| CN205171590U (en) | No sensing constant pressure water supply uses automatic calibration system | |
| CN104344862B (en) | The detection method of FCM10A type fuel consumption meters | |
| CN203224283U (en) | Liquid flow field calibration device | |
| CN101994704B (en) | Chemical process intelligent pump and control method thereof | |
| CN103604447A (en) | Method for realizing high-resolution incremental bus-based optical-electricity encoder | |
| CN204154516U (en) | A kind of wall-hung boiler Auto-Test System | |
| CN203037477U (en) | Static characteristic detection system of gas pressure regulator | |
| CN104132866B (en) | A kind of cigarette weight harvester and method | |
| CN205333671U (en) | Wind speed collector based on dual -frenquency meter | |
| CN103277150A (en) | Method for energy-saving optimization of operation of fan of direct air-cooling system of power plant | |
| CN206609527U (en) | A kind of color identification device | |
| CN204142476U (en) | Reel type irrigator water turbine general performance test | |
| CN104165761A (en) | Comprehensive performance tester for hard hose traveler | |
| CN201865923U (en) | Chemical engineering flow process intelligent pump | |
| CN204422016U (en) | A kind of intelligent water-level meter | |
| CN210033413U (en) | Single well metering system | |
| CN104154950A (en) | Combined-type flow pressure sensor | |
| CN204128611U (en) | A kind of hydraulic pressure mutual inductance water meter | |
| CN204061259U (en) | A kind of rotation speed of fan speed measurement device | |
| CN205014975U (en) | Continuous type pumped storage unit axis measurement system | |
| CN104330098B (en) | A kind of digitized receiver of CAN interface |
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 | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 312300 No. 1801 Renmin West Road, Shaoxing, Zhejiang, Shangyu Co-patentee after: Wolong Electrical Group Hangzhou Research Institute Co., Ltd. Patentee after: Wolong Electric Drive Group Co., Ltd. Address before: 312300 No. 1801 Renmin West Road, Shaoxing, Zhejiang, Shangyu Co-patentee before: Wolong Electrical Group Hangzhou Research Institute Co., Ltd. Patentee before: Wolong Electric Group Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200408 Address after: 312300 No. 1801 Renmin West Road, Shaoxing, Zhejiang, Shangyu Patentee after: WOLONG ELECTRIC GROUP Co.,Ltd. Address before: 312300 No. 1801 Renmin West Road, Shaoxing, Zhejiang, Shangyu Co-patentee before: WOLONG ELECTRICAL GROUP HANGZHOU RESEARCH INSTITUTE Co.,Ltd. Patentee before: WOLONG ELECTRIC GROUP Co.,Ltd. |