CN2042478U - Automatic water supply installation with constant pressure and changeable flow rate - Google Patents
Automatic water supply installation with constant pressure and changeable flow rate Download PDFInfo
- Publication number
- CN2042478U CN2042478U CN 89201350 CN89201350U CN2042478U CN 2042478 U CN2042478 U CN 2042478U CN 89201350 CN89201350 CN 89201350 CN 89201350 U CN89201350 U CN 89201350U CN 2042478 U CN2042478 U CN 2042478U
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- water supply
- water
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- frequency governor
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Abstract
The utility model discloses a fully automatic water supply device with variable volumes and a constant pressure. A sensor is arranged on a water supply pipe, a control cabinet and a variable frequency governor are arranged between a water pump motor and the sensor, and the control cabinet and variable frequency governor are used as speed changing and adjusting devices to control the start, the stop and the rotational speed of the water pump motor; the rotation speed of the motor changes with the water consumption, has a constant water supply pressure, and is controlled automatically. Compared with the present national air pressure water supply devices and high level water tanks, the utility model has the advantages of simple structure, reliable performance and small size, and has unique advantages in aspects of electric energy saving and the solution of the pollution caused by the air supply.
Description
The utility model belongs to building feedwater field.
At present, domestic water supply installation mainly is high level cistern, barrier film pressure water supply and automatic gas compensating type pressure watering device.Wherein pressure watering device is a compressibility of utilizing air, in the system that directly supplies water with water pump, be provided with an air pressure tank that is connected with the water pump water supply network, the variation of pipe network water is reacted directly in the variation of air pressure tank pressure, and utilize air pressure tank pressure to change the keying of automatically controlled water pump, reach pipe network is supplied water automatically, incessantly, when the jar internal pressure is not enough, pressurization and air supplement automatically.This device is on the low side at the local hydraulic pressure of solution, improve the height that supplies water, guaranteeing output and reducing the construction investment aspect has obvious effects, but also come with some shortcomings: pressure watering device is because of itself needing to replenish air at any time, water quality is polluted, and the air pressure tank volume is big, and steel using amount is big; The pressure watering device starting is frequent, and a starting is exactly running at full capacity, causes power consumption very big; Pressure watering device is to rely on the fluctuation of pressure to reach the water supply purpose, and institute is so that the serious pressure oscillation of water supply network generation.
The purpose of this utility model provides a kind of novel water supply installation, uses a switch board and variable-frequency governor to substitute the keying of air pressure tank control of pump, reaches variable constant voltage full automatic water supply.
Variable constant voltage full-automatic water supply device of the present utility model is made up of water supply line, pump motor, pressure sensor and variable-frequency governor and switch board.Stop as the control of pump motor starting and the speed change adjusting device of motor speed with switch board and variable-frequency governor, sensor is installed on the water supply line; Switch board has signal amplification, adjustment, control circuit.Its operating principle is: pressure sensor is measured current pipeline pressure in pipeline, and converts pressure to voltage signal and deliver to switch board; Switch board amplifies this signal, adjust, and makes signal be converted into the interchange driving signal that variable frequency also can adapt to motor real work starting current, and drive motor; Motor will be followed the output frequency difference according to variable-frequency governor, change rotating speed accordingly, drive high-pressure hydraulic pump and supply water to water supply network, when water supply volume changes, the motor speed respective change makes the pressure of pipe network keep constant, realizes Automatic Control.
Advantage of the present utility model is to adopt automatic program control, and output is regulated automatically with the size of water supply volume, and pressure of supply water is constant; Owing to do not use air pressure tank, make and the utlity model has compact conformation, reduced investment, mounting blocks, be convenient to characteristics such as management, be a kind of efficient energy-saving device.
Below in conjunction with drawings and Examples variable constant voltage full-automatic water supply device of the present utility model is further described.
Fig. 1 is a variable constant voltage full-automatic water supply device schematic diagram of the present utility model.
Use the two motors water pump in the present embodiment, motor 1,2 is the three-dimensional motor, and being that 50DL * 7 are supporting with water pump 3,4 models is connected; The water inlet pipe of water pump is connected with pond 18 respectively, and gate valve 5,6, flap valve 7,8 are housed respectively on the outlet pipe of water pump; Pressure meter 9, sensor 10,11 are positioned on the water supply network 17; Peace one electromagnetic valve 12 on the living water use pipeline, peace one fire-fighting gate valve 14,13rd on the water for fire pipeline, fire signal button.During work, sensor 10,11 is given switch board 19 with pressure signal 20,21 by circuit, switch board is given variable-frequency governor 15 (or 16) after signal is amplified, adjusts, variable-frequency governor is the motor variable-frequency governor of SVF series, supplies water to waterline network but drive motor 1 drives water pump 3 rotations; When a water pump water supply can not be satisfied the water requirement; pressure sensor 10 will send signal to switch board; starting variable-frequency governor 16 (or 15); two water pumps are worked simultaneously; when reaching water supply requirement, pressure sensor will send signal and shut down.The water supply volume of water system changes, but pressure of supply water is constant.Variable constant voltage full-automatic water supply device of the present utility model can be set main working barrel and the length of auxiliary pump and working time and alternately by artificial or switch board.
Variable-quantity constant-voltage of the present utility model is automatically put for acute diseases such as cholera and sunstroke water and be can be used for a day output 40-4000 ton, pressure less than 15GK/CM2Factory, enterprise's industrial water and domestic water, be applicable to waterworks trunk line constant pressure water supply, the domestic water in civil high-rise buildings, luxurious hotel, restaurant and fire demand water.
Claims (2)
1, a kind of water supply installation of being made up of motor, water pump and water supply line is characterized in that: sensor is installed on water supply line, switch board and variable-frequency governor are installed between motor water pump and sensor.
2, water supply installation as claimed in claim 1 is characterized in that: switch board has signal amplification, control, adjusting device, and variable-frequency governor adopts SVF series motor variable-frequency governor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89201350 CN2042478U (en) | 1989-02-04 | 1989-02-04 | Automatic water supply installation with constant pressure and changeable flow rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89201350 CN2042478U (en) | 1989-02-04 | 1989-02-04 | Automatic water supply installation with constant pressure and changeable flow rate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2042478U true CN2042478U (en) | 1989-08-09 |
Family
ID=4859271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89201350 Granted CN2042478U (en) | 1989-02-04 | 1989-02-04 | Automatic water supply installation with constant pressure and changeable flow rate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2042478U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121261A (en) * | 2010-01-08 | 2011-07-13 | 上海三远机电有限公司 | Phase-locked loop synchronous switching and FNN intelligent variable frequency constant pressure water supply system |
| CN102444174A (en) * | 2011-12-16 | 2012-05-09 | 安徽禾田电气有限公司 | Double closed-loop constant-pressure control system for water supply |
| CN103046616A (en) * | 2012-12-26 | 2013-04-17 | 淮安万邦香料工业有限公司 | Constant-pressure control method for circulating water system |
| CN104775478A (en) * | 2015-03-23 | 2015-07-15 | 川源(中国)机械有限公司 | Control unit for variable-frequency constant-pressure water supply |
-
1989
- 1989-02-04 CN CN 89201350 patent/CN2042478U/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121261A (en) * | 2010-01-08 | 2011-07-13 | 上海三远机电有限公司 | Phase-locked loop synchronous switching and FNN intelligent variable frequency constant pressure water supply system |
| CN102444174A (en) * | 2011-12-16 | 2012-05-09 | 安徽禾田电气有限公司 | Double closed-loop constant-pressure control system for water supply |
| CN103046616A (en) * | 2012-12-26 | 2013-04-17 | 淮安万邦香料工业有限公司 | Constant-pressure control method for circulating water system |
| CN104775478A (en) * | 2015-03-23 | 2015-07-15 | 川源(中国)机械有限公司 | Control unit for variable-frequency constant-pressure water supply |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |