CN201040854Y - Full-automatic frequency conversion constant-voltage water-supping device - Google Patents
Full-automatic frequency conversion constant-voltage water-supping device Download PDFInfo
- Publication number
- CN201040854Y CN201040854Y CNU2007200631023U CN200720063102U CN201040854Y CN 201040854 Y CN201040854 Y CN 201040854Y CN U2007200631023 U CNU2007200631023 U CN U2007200631023U CN 200720063102 U CN200720063102 U CN 200720063102U CN 201040854 Y CN201040854 Y CN 201040854Y
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- water supply
- frequency conversion
- full
- automatic frequency
- conversion constant
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Abstract
The utility model discloses an automatic water supply equipment with frequency conversion and constant voltage which can automatically adjust the pressure of the water supply with convenient using and reliable safety according to the requirement. The utility model includes an operation mechanism, an inverter formed by PID regulator, a programming controller connected with the inverter, and a pressure sensor connected with the PID regulator. The PID regulator makes a quantitative terminal connected with a pressure setting regulation resistance.
Description
Technical field:
The utility model relates to a kind of full-automatic frequency conversion constant pressure water supply equipment.
Background technology:
Current, the constant pressure water supply technical development is very fast, and constant pressure water supply equipment is of a great variety, and technology is also day by day progressive, but its result of use of some constant pressure water supply equipment still is unsatisfactory in actual use.But as at present more advanced, use wider, adopt programmable logic controller to form intellectual pressure regulation fully-automatic conversion constant pressure water supply system frequently, the giving to establish a capital of its pressure of supply water needs the professional and technical personnel to realize by revising director demon, can't satisfy the instructions for use of different user under varying environment.Therefore exist use inconvenient, have in addition also to give training the user, otherwise cause equipment normally to move or just can't move very difficult wide popularization and application at all.
The utility model content: the purpose of this utility model provides a kind of user can regulate pressure of supply water set-point, full-automatic frequency conversion constant pressure water supply equipment easy to use and safe and reliable as required voluntarily.
The technical solution of the utility model comprises the frequency converter that is made of the PID adjuster, and with described PID adjuster is imported, output is connected pressure sensor and executing agency, described frequency converter is connected with a pressure given device respectively.Described pressure given device is one to be connected in the adjustable resistor of the specified rate terminal of described PID adjuster.
Described programmable logic controller input is connected with liquid level detector.
Described liquid level detector is connected with programmable logic controller through conversion equipment.
Described liquid level detector is a floating ball lever meter, and described conversion equipment is an auxiliary reclay.
Described pressure sensor is located on the booster jar; Described frequency converter is single-phase frequency converter.
The utility model changes according to the pipe network instantaneous pressure, automatically regulate the rotating speed of certain water pump and the water pump operation platform number of water pump group, satisfy the needs that user's constant-pressure variable supplies water and variable pressure and flow supplies water, it is constant that the water supply network terminal pressure is remained, and makes whole water system keep energy-efficient optimum state.Can accomplish how much water to supply how much water with, do not waste electric energy, do not need the special messenger to guard.Owing to be provided with the given adjusting device of Manual pressure, system's constant voltage value can not need be set by software by the professional, and the user does not need training just can regulate pressure as required voluntarily, can satisfy the instructions for use of different users under varying environment.Easy to use, reliable, be convenient to promote, be suitable for the rural area central water supply.The utility model not only can adopt heterogeneous frequency converter and heterogeneous water pump, also can use single-phase frequency converter and single-phase water pump, need not the frame special line, and the saving fund.
Description of drawings:
Fig. 1 is the utility model theory structure schematic diagram.
The specific embodiment: as shown in Figure 1, two fixed terminals of adjustable resistor (potentiometer) 3 are connected with dc source anode+24V, the negative terminal GND of PID adjuster 1 respectively, and its centre cap is connected in the specified rate terminal ACI of PID adjuster 1.Be located at the feedback input end mouth that pressure sensor 4 on the booster jar 9 is connected in PID adjuster 1.Frequency converter 2 and programmable logic controller 5 interconnect by holding wire.Executing agency 7 is connected with the output of frequency converter 2 with programmable logic controller 5 respectively by holding wire.Executing agency 7 connects the motor of water pump group by holding wire.Floating ball lever meter 8 is connected through the respective input of auxiliary reclay 6 with programmable logic controller 5.
During work, booster jar (voltage stabilizing air pressure tank) 9 internal water pressures that 4 pairs of pressure sensors are located on user's water pipe networking detect, and detection signal is transferred to PID adjuster 1, compare and computing with setting pressure value then, again operation result is converted to the frequency adjustment signal and start the water pump platform and count signal by program setting.This frequency adjustment signal is delivered to frequency converter 2, by the supply frequency of frequency converter 2 adjusting pump motors, and then by executing agency's 7 adjusting pump rotary speeds; It starts water pump platform counts signal and delivers to programmable logic controller 5, by the input of programmable logic controller 5 control of pump or out of service.By dropping in the control of pump group or the platform number out of service and the rotating speed of the variable frequency pump in the water pump group thereof, thereby the hydraulic pressure in the stable water supply pipe network makes in output and the user's pipe network constantly that the water supply volume of variation is consistent, and reaches the purpose of variable constant pressure water supply.
Simultaneously, the user can be as required, changes the pressure given value by the knob of regulating adjustable resistor (potentiometer) 3 on the basis of above-mentioned pressure of supply water set-point by program setting, thereby realize the needed new constant pressure of supply water of user.
During normal the operation, a main pump is in frequency converter 2 control down coversions operations, and when pressure of supply water reached setting value and flow and water supply volume balance, pump motor was stabilized in a certain rotating speed; When water supply volume increases or reduce, water pump will quicken or be decelerated to another stabilized (steady-state) speed by the frequency of frequency converter 2 outputs; After frequency converter 2 makes water pump reach maximum (top) speed, still when increasing, system will start general pump to water supply volume, and water yield is increased.When water supply volume reduced, frequency converter 2 reduced pump rotary speed, if water supply volume further reduces, system will close general pump, and only surplus variable frequency pump moves or enters dormancy and shuts down.
By water level in the floating ball lever meter 8 detection wells and by programmable logic controller 5 monitoring, in case security of system stable operation is guaranteed in water pump idle running.
Claims (6)
1. a full-automatic frequency conversion constant pressure water supply equipment comprises the frequency converter that is made of the PID adjuster, and pressure sensor and the executing agency that is connected with described PID adjuster input, output is characterized in that described frequency converter is connected with a pressure given device respectively.
2. by the described full-automatic frequency conversion constant pressure water supply equipment of claim 1, it is characterized in that described pressure given device is one to be connected in the adjustable resistor of described PID adjuster specified rate terminal.
3. by the described full-automatic frequency conversion constant pressure water supply equipment of claim 1, it is characterized in that described programmable logic controller input is connected with liquid level detector.
4. by the described full-automatic frequency conversion constant pressure water supply equipment of claim 3, it is characterized in that described liquid level detector is connected with programmable logic controller through conversion equipment.
5. by the described full-automatic frequency conversion constant pressure water supply equipment of claim 4, it is characterized in that described liquid level detector is a floating ball lever meter, described conversion equipment is an auxiliary reclay.
6. by the described full-automatic frequency conversion constant pressure water supply equipment of claim 1, it is characterized in that described pressure sensor is located on the booster jar; Described frequency converter is single-phase frequency converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200631023U CN201040854Y (en) | 2007-04-25 | 2007-04-25 | Full-automatic frequency conversion constant-voltage water-supping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200631023U CN201040854Y (en) | 2007-04-25 | 2007-04-25 | Full-automatic frequency conversion constant-voltage water-supping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201040854Y true CN201040854Y (en) | 2008-03-26 |
Family
ID=39252559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200631023U Expired - Fee Related CN201040854Y (en) | 2007-04-25 | 2007-04-25 | Full-automatic frequency conversion constant-voltage water-supping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201040854Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105256859A (en) * | 2015-09-15 | 2016-01-20 | 苏州艾克威尔科技有限公司 | Water level and water pressure control method |
| CN106522312A (en) * | 2016-12-09 | 2017-03-22 | 屈兆辉 | Multi-pump parallel-connection variable frequency and constant pressure control system |
-
2007
- 2007-04-25 CN CNU2007200631023U patent/CN201040854Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105256859A (en) * | 2015-09-15 | 2016-01-20 | 苏州艾克威尔科技有限公司 | Water level and water pressure control method |
| CN106522312A (en) * | 2016-12-09 | 2017-03-22 | 屈兆辉 | Multi-pump parallel-connection variable frequency and constant pressure control system |
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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: 20080326 |