CN103243779A - Variable frequency energy saving water supply technology - Google Patents
Variable frequency energy saving water supply technology Download PDFInfo
- Publication number
- CN103243779A CN103243779A CN2012100296181A CN201210029618A CN103243779A CN 103243779 A CN103243779 A CN 103243779A CN 2012100296181 A CN2012100296181 A CN 2012100296181A CN 201210029618 A CN201210029618 A CN 201210029618A CN 103243779 A CN103243779 A CN 103243779A
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- Prior art keywords
- pump
- water
- air pressure
- pressure tank
- frequency
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 238000005516 engineering process Methods 0.000 title claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- Control Of Non-Positive-Displacement Pumps (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
A pump is operated at a high speed all the time when variable frequency voltage constant water supply equipment works, efficiency of the pump is correspondingly increased along with the increasing of the revolving speed according to state design standards, the revolving speed of the pump is constant when flow of a user is decreased, redundant water from the pump enters into an air pressure tank to be stored, the pump is controlled to stop operating through the variable frequency when water storage in the air pressure tank achieves a design pressure, then a water utilizing requirement of the user is satisfied through the storage water in the air pressure tank, and the purposes of improving the pump operating efficiency and saving energy are achieved.
Description
Technical field
The present invention relates to a kind of energy saving water supply technology, particularly a kind of life pressurized water supply energy-saving and frequency-variable technology.
Background technology
Supercharging water supply system of the prior art adopts the constant pressure water supply pattern mostly, regulating pump rotary speed by frequency converter realizes energy-conservation, but its energy-conservation situation does not still reach perfect condition, this is because ignored a problem in the practical application, that is exactly most time of user's water supply volume all to be far smaller than design discharge, this just makes water pump be in the low-frequency operation state for a long time, causes water pump efficiency to reduce greatly, and power consumption increases.
Summary of the invention
The objective of the invention is to: pump working efficient reaches purpose of energy saving when improving constant pressure water supply by a kind of control technology.
The present invention adopts following technological means to realize above-mentioned purpose: in constant pressure water supply equipment frequency converter is installed, the minimum frequency with frequency converter is arranged on the efficient segment limit of pump rotary speed simultaneously, and the configuration air pressure tank carries out power conversion and adjusting in system.
After adopting as above technological means, water pump is in all the time than high rotational speed and moves during the work of constant pressure water supply equipment, according to the corresponding rising of more high its efficient of national design standard rotating speed, pump rotary speed is constant when customer flow reduces, at this moment the water redundance got of water pump enters into air pressure tank and stores, the variable frequency control water pump is out of service when the air pressure tank water storage reaches design pressure, at this moment the user changes by satisfied use of air pressure tank deposit water, reaches with this and improves water pump efficiency and purpose of energy saving.
Description of drawings
Fig. 1 is national standard rotating speed and efficiency curve diagram.
Fig. 2 is system configuration air pressure tank schematic diagram.
The specific embodiment
The configuration mode of the air pressure tank of constant pressure water supply equipment carries out parallel connection with air pressure tank 1 and water pump assembly 2 as shown in Figure 2, frequency converter 3 control water pumps, the signal of pressure sensor 4 is connected to frequency converter 3, the minimum running frequency of frequency converter 3 is set to the efficient scope (40HZ) of water pump assembly 2, the frequency of frequency converter 3 is in the low-limit frequency operation all the time during the equipment operation, when pump rotary speed when customer flow reduces and frequency keep minimum constant, at this moment the water redundance got of water pump assembly 2 enters into air pressure tank 1 and stores, frequency converter 3 control water pump assemblies 2 are out of service when air pressure tank 1 water storage reaches design pressure, at this moment the user changes by the satisfied use of air pressure tank 1 deposit water, reaches with this and improves water pump efficiency and purpose of energy saving.The relation of rotating speed and efficient is seen Fig. 1, and this technology can be applicable in no-negative-pressure water supply equipment and the pressure-superposed water supplying facility simultaneously.
Claims (2)
1. energy-saving and frequency-variable hydrotechny, it is characterized in that: frequency converter is installed in the supply equipment, minimum frequency with frequency converter is arranged on the efficient segment limit of pump rotary speed simultaneously, the configuration air pressure tank carries out power conversion and adjusting in system, the variable frequency control water pump was out of service when the air pressure tank water storage reached design pressure, and the user changes by satisfied use of air pressure tank deposit water.
2. a kind of energy-saving and frequency-variable hydrotechny according to claim 1, it is characterized in that: this technology can be applicable in no-negative-pressure water supply equipment and the pressure-superposed water supplying facility simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100296181A CN103243779A (en) | 2012-02-10 | 2012-02-10 | Variable frequency energy saving water supply technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100296181A CN103243779A (en) | 2012-02-10 | 2012-02-10 | Variable frequency energy saving water supply technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103243779A true CN103243779A (en) | 2013-08-14 |
Family
ID=48923631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100296181A Pending CN103243779A (en) | 2012-02-10 | 2012-02-10 | Variable frequency energy saving water supply technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103243779A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10103251A (en) * | 1996-09-26 | 1998-04-21 | Toshihiro Omi | Automatic water supply device |
| CN1216793A (en) * | 1997-10-30 | 1999-05-19 | 赵虎哲 | Variable-frequency, speed-regulation and constant pressure water supply equipment and method for high buildings |
| CN102102383A (en) * | 2011-01-18 | 2011-06-22 | 太平洋水处理工程有限公司 | Pneumatic water supply process and device for supercharging water supply pump station system |
| CN202131642U (en) * | 2011-06-07 | 2012-02-01 | 王爱军 | Box type water supply device |
-
2012
- 2012-02-10 CN CN2012100296181A patent/CN103243779A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10103251A (en) * | 1996-09-26 | 1998-04-21 | Toshihiro Omi | Automatic water supply device |
| CN1216793A (en) * | 1997-10-30 | 1999-05-19 | 赵虎哲 | Variable-frequency, speed-regulation and constant pressure water supply equipment and method for high buildings |
| CN102102383A (en) * | 2011-01-18 | 2011-06-22 | 太平洋水处理工程有限公司 | Pneumatic water supply process and device for supercharging water supply pump station system |
| CN202131642U (en) * | 2011-06-07 | 2012-02-01 | 王爱军 | Box type water supply device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130814 |