CN202936849U - Variable frequency constant pressure water supply device - Google Patents
Variable frequency constant pressure water supply device Download PDFInfo
- Publication number
- CN202936849U CN202936849U CN 201220656867 CN201220656867U CN202936849U CN 202936849 U CN202936849 U CN 202936849U CN 201220656867 CN201220656867 CN 201220656867 CN 201220656867 U CN201220656867 U CN 201220656867U CN 202936849 U CN202936849 U CN 202936849U
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- Prior art keywords
- water
- water pump
- supply device
- water supply
- constant pressure
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- Expired - Fee Related
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Abstract
The utility model discloses a variable frequency constant pressure water supply device which comprises a water pump set. The water pump set is connected with a water inlet pipeline and supplies water through a water outlet pipe network. The variable frequency constant pressure water supply device further comprises a variable frequency control cabinet, a microprocessor and a frequency converter connected with the microprocessor are installed inside the variable frequency control cabinet, and the water pump set is connected with the frequency converter in an electrical mode. By means of the arrangement of the frequency converter, the variable frequency constant pressure water supply device controls the working frequency of the water pump set, the constancy of water pressure of the water outlet pipe network is ensured, the quality of water supply is improved, and energy conservation and emission reduction are achieved.
Description
Technical field
The utility model relates to hydrotechny field, particularly a kind of constant pressure water supply device.
Background technology
Present large-scale tall buildings and the water supply of residential quarters are general adopts traditional fixed frequency three phase alternating current motor to drag load, coordinate high level cistern, water tower or air pressure tank pressuring method, water in tap water pipe network is squeezed into the user, solve the problem of high-rise hydraulic pressure deficiency.But this mode rises to the higher position with water extraction and need to expend the larger energy because water tower, high level cistern all need to be built up in position on water supply point; And set up water tower, high level cistern construction volume larger, expend man-hour and cost; Particularly, there are secondary pollution in water tower, high level cistern, are not suitable for providing living water use.
The utility model content
The problem that the utility model solves is to provide a kind of constant pressure water supply device, solves the existing problem that the water supply installation quality of water supply is relatively poor, energy consumption is higher.
For addressing the above problem, the technical solution adopted in the utility model is:
A kind of constant pressure water supply device comprises the water pump group, and the water pump group connects inlet channel, and provide water by the water outlet pipe network, also comprise frequency-conversion control cabinet, microprocessor and connected frequency converter are installed in described frequency-conversion control cabinet, described water pump group is electrically connected to frequency converter.
Further, the described water outlet pipe network that is connected with the water pump group is equipped with the diaphragm type pressurized tank.
Further, described inlet channel is provided with pressure sensor, and described pressure sensor connects microprocessor.
Further, described water outlet pipe network is provided with pressure sensor and electro connecting pressure gauge, and described electro connecting pressure gauge is connected with pressure sensor and is connected microprocessor.
Further, in described water pump group, water inlet end and the water side of each water pump are equipped with valve, and the water side of described water pump is equipped with flap valve.
Compared with prior art, the advantage of technical solutions of the utility model is:
By the operating frequency of Frequency Converter Control water pump group is set, guarantee the constant of water outlet pipe network water pressure, improve quality of water supply and realized energy-saving and emission-reduction.
Description of drawings
Fig. 1 is the utility model specific embodiment schematic diagram.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is elaborated.
Fig. 1 is the utility model specific embodiment schematic diagram.As shown in Figure 1, a kind of constant pressure water supply device, comprise water pump group 100, water pump group 100 connects inlet channel 200, and provide water by water outlet pipe network 300, also comprise frequency-conversion control cabinet 400, microprocessor 410 and connected frequency converter 420 are installed in described frequency-conversion control cabinet 400, described water pump group 100 is electrically connected to frequency converter 420.
The described water outlet pipe network 300 that is connected with water pump group 100 is equipped with the diaphragm type pressurized tank.
Described inlet channel 200 is provided with pressure sensor 210, and described pressure sensor 210 connects microprocessor 410.Described pressure sensor 210 sends the pressure signal that obtains to microprocessor 410, to guarantee the normal operation of constant pressure water supply device.Such as, inlet channel 200 lacks of water, the pressure that records of pressure sensor 210 is less than setting value, and microprocessor 410 judgement inlet channels supply water and go wrong, and stop the operation of water pump group 100 by frequency converter 420, prevent that water pump group 100 from dallying.
Described water outlet pipe network 300 is provided with pressure sensor 220 and electro connecting pressure gauge 230, and described electro connecting pressure gauge 230 is connected with pressure sensor and is all connected microprocessor 410.
In described water pump group 100, the water inlet end of each water pump and water side are equipped with valve 110, and the water side of described water pump is equipped with flap valve 120.
Described constant pressure water supply device is take pipe network water pressure (or the user uses discharge) as setting reference parameter, and during its work, water pump group 100 is controlled device; Pressure sensor 220 is with the water outlet pipe network 300(that measures user side namely) pressure signal be transferred to microprocessor 410; Then microprocessor 410 the reference parameter of the pressure signal that receives and setting relatively exports corresponding signal to frequency converter 420, and frequency converter 420 is controlled the water pump group again and carried out corresponding actions.As, when water supply volume increased, pressure reduced, and microprocessor 410 is controlled frequency converter 420 rising output frequencies, water pump group 100 faster rotational speed, the corresponding increase of output, when water pump reaches certain operating frequency, during as 50HZ, another water pump of increasing input; When water supply volume reduces, reduce output frequency, water pump group 100 rotating speeds are slowed down, output is corresponding reducing also, when water pump is reduced to certain operating frequency, closes a water pump.So just guarantee the requirement of user to the water yield, improved simultaneously water application efficiency, realized the using water wisely purpose of " using How much water, for How much water ".
The described constant pressure water supply device of the utility model specific embodiment by the operating frequency of Frequency Converter Control water pump group, guarantees the constant of water outlet pipe network water pressure, has improved quality of water supply and has realized energy-saving and emission-reduction.
Although the utility model with preferred embodiment openly as above; but it is not to limit the utility model; any those skilled in the art are not within breaking away from spirit and scope of the present utility model; can make possible change and modification, therefore protection domain of the present utility model should be as the criterion with the scope that the utility model claim is defined.
Claims (5)
1. a constant pressure water supply device, comprise the water pump group, and the water pump group connects inlet channel, and provide water by the water outlet pipe network, and it is characterized in that, also comprise frequency-conversion control cabinet, microprocessor and connected frequency converter are installed in described frequency-conversion control cabinet, and described water pump group is electrically connected to frequency converter.
2. constant pressure water supply device according to claim 1, is characterized in that, the described water outlet pipe network that is connected with the water pump group is equipped with the diaphragm type pressurized tank.
3. constant pressure water supply device according to claim 1, is characterized in that, described inlet channel is provided with pressure sensor, and described pressure sensor connects microprocessor.
4. constant pressure water supply device according to claim 1, is characterized in that, described water outlet pipe network is provided with pressure sensor and electro connecting pressure gauge, and described electro connecting pressure gauge is connected with pressure sensor and is connected microprocessor.
5. constant pressure water supply device according to claim 1, is characterized in that, in described water pump group, water inlet end and the water side of each water pump are equipped with valve, and the water side of described water pump is equipped with flap valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220656867 CN202936849U (en) | 2012-12-04 | 2012-12-04 | Variable frequency constant pressure water supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220656867 CN202936849U (en) | 2012-12-04 | 2012-12-04 | Variable frequency constant pressure water supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202936849U true CN202936849U (en) | 2013-05-15 |
Family
ID=48321095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220656867 Expired - Fee Related CN202936849U (en) | 2012-12-04 | 2012-12-04 | Variable frequency constant pressure water supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202936849U (en) |
-
2012
- 2012-12-04 CN CN 201220656867 patent/CN202936849U/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: 20130515 Termination date: 20151204 |
|
| EXPY | Termination of patent right or utility model |