CN204781133U - Frequency constant -voltage water supply device - Google Patents
Frequency constant -voltage water supply device Download PDFInfo
- Publication number
- CN204781133U CN204781133U CN201520499497.6U CN201520499497U CN204781133U CN 204781133 U CN204781133 U CN 204781133U CN 201520499497 U CN201520499497 U CN 201520499497U CN 204781133 U CN204781133 U CN 204781133U
- Authority
- CN
- China
- Prior art keywords
- water supply
- motor
- control unit
- supply device
- driver element
- 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.)
- Expired - Fee Related
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
Abstract
The utility model discloses a frequency constant -voltage water supply device, including the control unit (1), drive unit (2), dc motor (3) and water pump (4), water pump (4) through water supply pipe be building (6) water supply last be provided with pressure sensor (5) and electric valve (7) of water supply pipe, pressure sensor (5) with the control unit (1) is connected, the output of the control unit (1) is connected drive unit (2), drive unit (2) with dc motor (3) are connected, dc motor (3) through the transmission shaft with water pump (4) are connected. The utility model discloses can realize stable constant pressure water supply.
Description
Technical field
The utility model belongs to control field, particularly a kind of constant pressure water supply device.
Background technology
Water supplying system is a set of hydrology and hydraulic engineering system, relates to the processes such as the collection of water, process, transmission, provides clean fresh water to user.Domestic water supplying system plays vital effect in daily life.For domestic water supplying system, whether the quality of systematic function depends on whether it can realize constant pressure water supply, can be energy-conservation.But for a long time, municipal water supply, high rise building water supply, industrial production periodical feeding etc. also exist a lot of problem at technical elements, can not meet development and the demand of current social.
Utility model content
For the defect of prior art, the utility model provides a kind of constant pressure water supply device.
A kind of constant pressure water supply device, comprise control unit 1, driver element 2, dc motor 3 and water pump 4, described water pump 4 is that building 6 supplies water by water supply line, described water supply line is provided with pressure sensor 5 and electrically operated valve 7, described pressure sensor 5 is connected with described control unit 1, the output of described control unit 1 connects described driver element 2, and described driver element 2 is connected with described dc motor 3, and described dc motor 3 is connected with described water pump 4 by power transmission shaft.
Optionally, described control unit 1 comprises the adder, fuzzy controller, triangular-wave generator and the amplifier that connect successively.
Optionally, described driver element comprises the fusing FU be connected with power supply, described fusing FU is connected with full bridge rectifier after the first filter capacitor C1, described full bridge rectifier is by diode D1, D2, D3, D4 forms, output one tunnel of described full bridge rectifier connects the second filter capacitor C2, another road connects one end of inductance L 1, the other end of described inductance L 1 is connected with one end of described dc motor 3, the other end of described dc motor 3 is through metal-oxide-semiconductor MOS1 ground connection, the two ends inverse parallel of described dc motor 3 has sustained diode 5, described amplifier is connected with described metal-oxide-semiconductor MOS1.
The beneficial effects of the utility model are: the utility model can realize stable constant pressure water supply.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model constant pressure water supply device;
Fig. 2 is the utility model control principle drawing;
Fig. 3 is the schematic diagram of the utility model triangular-wave generator.
Detailed description of the invention
For enabling above-mentioned purpose of the present utility model, feature and advantage become apparent more, are described in detail detailed description of the invention of the present utility model below in conjunction with accompanying drawing, make above-mentioned and other object of the present utility model, Characteristics and advantages will be more clear.Reference numeral identical in whole accompanying drawing indicates identical part.Deliberately do not draw accompanying drawing in proportion, focus on purport of the present utility model is shown.
As shown in Figure 1, constant pressure water supply device of the present utility model comprises control unit 1, driver element 2, dc motor 3 and water pump 4, described water pump 4 is that building 6 supplies water by water supply line, described water supply line is provided with pressure sensor 5 and electrically operated valve 7, described pressure sensor 5 is connected with described control unit 1, the output of described control unit 1 connects described driver element 2, described driver element 2 is connected with described dc motor 3, and described dc motor 3 is connected with described water pump 4 by power transmission shaft.
Refer to Fig. 2, described control unit 1 comprises the adder, fuzzy controller, triangular-wave generator and the amplifier that connect successively, the pressure value P detected pressure sensor 5 by adder and pressure set points P0 are compared, fuzzy controller exports corresponding control signal U according to comparative result, as shown in Figure 3, the triangular signal of control signal U and triangular-wave generator compares, obtain the PWM(pulse width modulation of different duty) ripple, this PWM ripple is input queued switches unit after amplifying.Described driver element comprises the fusing FU be connected with power supply, after electric current exceedes setting value, described fusing FU disconnects, play a protective role, described fusing FU is connected with full bridge rectifier after the first filter capacitor C1, described full bridge rectifier is by diode D1, D2, D3, D4 forms, output one tunnel of described full bridge rectifier connects the second filter capacitor C2, another road connects one end of inductance L 1, the other end of inductance L 1 is connected with one end of described dc motor 3, the other end of described dc motor 3 is through metal-oxide-semiconductor MOS1 ground connection, the two ends inverse parallel of described dc motor 3 has sustained diode 5, the afterflow in motor stopped process of described sustained diode 5, the switching frequency of the PWM ripple control MOS1 exported by control unit, thus the voltage at adjustment direct current generator 3 two ends, variable frequency control is carried out to dc motor, thus the rotating speed of adjustment direct current generator 3, the actual pressure that so just can detect according to pressure sensor and the difference of setting pressure adjust the rotating speed of direct current generator, thus make water pipe pressure keep constant.
Set forth a lot of detail in the above description so that fully understand the utility model.But above description is only preferred embodiment of the present utility model, the utility model can be much different from alternate manner described here to implement, and therefore the utility model is not by the disclosed concrete restriction implemented above.Any those skilled in the art are not departing under technical solutions of the utility model ambit simultaneously, the Method and Technology content of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solutions of the utility model, or be revised as the Equivalent embodiments of equivalent variations.Every content not departing from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solutions of the utility model protection.
Claims (3)
1. a constant pressure water supply device, it is characterized in that comprising control unit (1), driver element (2), dc motor (3) and water pump (4), described water pump (4) is that building (6) supplies water by water supply line, described water supply line is provided with pressure sensor (5) and electrically operated valve (7), described pressure sensor (5) is connected with described control unit (1), the output of described control unit (1) connects described driver element (2), described driver element (2) is connected with described dc motor (3), described dc motor (3) is connected with described water pump (4) by power transmission shaft.
2. constant pressure water supply device according to claim 1, is characterized in that described control unit (1) comprises adder, fuzzy controller, triangular-wave generator and the amplifier connected successively.
3. constant pressure water supply device according to claim 2, it is characterized in that described driver element comprises the fusing FU be connected with power supply, described fusing FU is connected with full bridge rectifier after the first filter capacitor C1, described full bridge rectifier is by diode D1, D2, D3, D4 forms, output one tunnel of described full bridge rectifier connects the second filter capacitor C2, another road connects one end of inductance L 1, the other end of described inductance L 1 is connected with one end of described dc motor (3), the other end of described dc motor (3) is through metal-oxide-semiconductor MOS1 ground connection, the two ends inverse parallel of described dc motor (3) has sustained diode 5, described amplifier is connected with described metal-oxide-semiconductor MOS1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520499497.6U CN204781133U (en) | 2015-07-13 | 2015-07-13 | Frequency constant -voltage water supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520499497.6U CN204781133U (en) | 2015-07-13 | 2015-07-13 | Frequency constant -voltage water supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204781133U true CN204781133U (en) | 2015-11-18 |
Family
ID=54521214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520499497.6U Expired - Fee Related CN204781133U (en) | 2015-07-13 | 2015-07-13 | Frequency constant -voltage water supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204781133U (en) |
-
2015
- 2015-07-13 CN CN201520499497.6U patent/CN204781133U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20180713 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |