CN204983033U - Energy -conserving water supply equipment of full frequency conversion of double -core - Google Patents
Energy -conserving water supply equipment of full frequency conversion of double -core Download PDFInfo
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- CN204983033U CN204983033U CN201520515369.6U CN201520515369U CN204983033U CN 204983033 U CN204983033 U CN 204983033U CN 201520515369 U CN201520515369 U CN 201520515369U CN 204983033 U CN204983033 U CN 204983033U
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Abstract
The utility model relates to a no negative pressure water supply equipment, especially energy -conservation, can satisfy constant pressure water supply's energy -conserving water supply equipment of full frequency conversion of double -core, the device is including no negative pressure water supply equipment body, this internal stationary flow jar of establishing of no negative pressure water supply equipment, the pump package of compriseing the parallel connection of pumps of two at least independent controls is connected to the stationary flow jar, the converter of built -in PID closed -loop control ware is connected respectively to every pump, converter connection director, be equipped with two pressure transmitter on the no negative pressure water supply equipment body user side connection main line, two pressure transmitter are connected with the signal isolation ware respectively, the converter is connected to the signal isolation ware. The utility model discloses an improve the novel water supply equipment who forms on no negative pressure water supply equipment's basis, many pumps are controlled by the controller to this equipment, and every pump is by the control of respective converter, can realize PID closed -loop control, has improved the constant pressure water supply effect of equipment, energy -conservation, and the system operates steadily, safe and reliable, the fault rate is low.
Description
Technical field
The utility model relates to supply equipment, particularly a kind of non-negative pressure water-supply installation.
Background technology
Non-negative pressure water-supply installation, generally refers to non-negative pressure frequency-changing water supply device, is also variable frequency non-negative pressure water, is the supercharging equipment be directly connected on water supply network.Traditional way of supplying water be unable to do without reservoir, and the general running water pipe supply of the water in reservoir, becomes zero after having the water of pressure to enter pond like this, cause a large amount of energy to waste.And non-negative pressure water-supply installation is a kind of can directly connection with tap water pipe network, the secondary water supply equipment of any side effect can not be produced to tap water pipe network.In current water supply field, the general non-negative pressure water-supply installation adopted is that two water supplying pumps are namely by a Frequency Converter Control two water pumps (1 control 2).Because these two pump capacities are identical, and choose according to maximum discharge, have that energy consumption is high, the pump life-span is short, can not meet the shortcoming of constant pressure water supply requirement.
Summary of the invention
The technical problems to be solved in the utility model is to provide the full water supply with energy saving through frequency changing equipment of a kind of double-core that is energy-conservation, that can meet constant pressure water supply.
For solving above technical problem, the technical solution adopted in the utility model is:
The full water supply with energy saving through frequency changing equipment of a kind of double-core, comprise non-negative pressure water-supply installation body, steady-flow tank is established in non-negative pressure water-supply installation body, steady-flow tank connects the pump group be made up of the parallel connection of pumps of at least two platform independent controls, every platform pump connects the frequency converter of internal PID closed loop controller respectively, frequency converter connection control device, and non-negative pressure water-supply installation body user side connects main line and is provided with two pressure transmitters, two pressure transmitters are connected with signal isolator respectively, and signal isolator connects frequency converter.
The utility model is the novel supply equipment improved on the basis of non-negative pressure water-supply installation, this equipment is except the functional character with non-negative pressure water-supply installation, the most important thing is that feature is that double-core runs, namely controller is had to control multiple stage pump, every platform pump is by respective Frequency Converter Control, PID closed-loop control can be realized, improve the constant pressure water supply effect of equipment.Can select manually, automatic two kinds of modes supply water, and normal conditions first with automatically controlling, being carried out speed governing operation by controller to multichannel pump, being switched to PID to run if desired, possess manual operation function, realizing continuous water supply by each pump of Frequency Converter Control.Even if wherein a certain frequency converter breaks down, the operation of whole system also can not be affected.Equipment also adopts two pressure transmitters, is assigned on frequency converter and controller by signal isolator after being transformed, and is that equipment operation is more safe and reliable.According to water supply volume change, the circulation converting operation of pump group can be completed, run according to first opening the principle of first stopping, the workload of balanced each pump, thus extend the water pump life-span.
The utility model adopts independently frequency converter, and adapted numeral Control Technique of Microcomputer, automaticity is high, can realize constant-pressure variable, many constant-pressure variables, variable pressure and flow multiple control modes, and system cloud gray model is steady, safe and reliable, failure rate is low.Every platform pump is by respective Frequency Converter Control, non-impact current, and mechanical wear is little, can extension device application life.Use equipment described in the utility model, pond need not be built or establish water tank, being directly connected with tap water pipe network, the original pressure of tap water pipe network can be made full use of.Therefore the system most of the time is run at low frequencies, and power consumption is less, and therefore energy-saving effect is remarkable, can reach more than 50%.Tap water directly supplies user after equipment pressurization, and omnidistance sealing runs, and water source is vulnerable to pollution not, and quality of water supply is good, is environment-friendly type supply equipment.Employing computer transduce controls, and hydraulic pressure is steady, and water quality is good.Property management is convenient, simple, and this supply equipment is digital control fully automatic operation.Autostop when cutting off the water, Auto Power On during incoming call water.
The pressurization that the utility model is applicable to the not enough area of any tap water pressure is supplied water, and comprising:
1, the production of industrial and mining enterprises, living water use and various water charging system;
2, new residential area or office premises living water use;
The pond of 3, having built up, can adopt the way of supplying water that non-negative pressure water-supply installation and pond share;
4, original pressure water supply equipment is transformed, original air pressure tank can be made full use of;
5, the various circulating system, the intermediate booster pump station of water works.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure, 1-steady-flow tank, 2-pump, 3-frequency converter, 4-controller, 5-pressure transmitter, 6-signal isolator.
Detailed description of the invention
The full water supply with energy saving through frequency changing equipment of double-core shown in Fig. 1, comprise non-negative pressure water-supply installation body, steady-flow tank 1 is established in non-negative pressure water-supply installation body, steady-flow tank 1 connects the pump group composed in parallel by the pump 2 of at least two platform independent controls, every platform pump 2 connects the frequency converter 3 of internal PID closed loop controller respectively, frequency converter 3 connection control device 4, non-negative pressure water-supply installation body user side connects main line and is provided with two pressure transmitters 5, two pressure transmitters 5 are connected with signal isolator 6 respectively, and signal isolator 6 connects frequency converter 3.
The frequency converter 3 of internal PID closed loop controller is the control appliance of pump motor, can according to water pressure invariableness need by frequency signal supply pump motor, adjust its rotating speed.Hydraulic pressure is detected by pressure transmitter 5 on the main line being arranged on pipe network, and is translated into current signal, feeds back to frequency converter 3 and controller 4.The set-point of frequency converter 3 according to setting and the actual value of feedback, namely according to voltage setting value corresponding during constant voltage and the fed-back current signals obtained from pressure transmitter 5, the PID closed-loop control of controller 4 and frequency converter 3 is utilized automatically to regulate, change rate-adaptive pacemaker value and regulate controlled pump motor rotating speed, to ensure the constant requirement of ductwork pressure.
Except change pump motor rotating speed, also in running, water pressure invariableness will be maintained by the number of units increasing and reduce process pump 2.Upper frequency limit is reached when controlling the frequency converter output frequency that certain pump 2 runs, and when in pipeline, the current signal value of pressure transmitter 5 feedback does not reach preset value, send and add pump signal, send instruction by controller 4 to the frequency converter 3 of the pump 2 that will increase, the water pump that this frequency converter 3 controls drops into and supplies water.The current signal value fed back when pressure transmitter 5 reaches preset value, when frequency converter 3 output frequency of the pump run drops to lower-frequency limit, sends and subtracts pump signal, excise a pump at power frequency operation, if only have a pump operation, then enter resting state.
Controller 4 connects man-machine interface, numeral setting work water pressure, and uses digital-scroll technique actual working pressure, makes actual working pressure consistent with setting pressure.Normal conditions first with automatically controlling, being carried out speed governing operation by controller 4 pairs of multichannel pumps, being switched to PID to run if desired, possesses manual operation function, by changeover switch incision " manually " position, the start-stop button of each pump on manual operation panel, realizes continuous water supply by each pump of Frequency Converter Control.
Claims (1)
1. the full water supply with energy saving through frequency changing equipment of double-core, comprise non-negative pressure water-supply installation body, steady-flow tank (1) is established in non-negative pressure water-supply installation body, steady-flow tank (1) connects the pump group composed in parallel by the pump (2) of at least two platform independent controls, it is characterized in that: every platform pump (2) connects the frequency converter (3) of internal PID closed loop controller respectively, frequency converter (3) connection control device (4), non-negative pressure water-supply installation body user side connects main line and is provided with two pressure transmitters (5), two pressure transmitters (5) are connected with signal isolator (6) respectively, signal isolator (6) connects frequency converter (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520515369.6U CN204983033U (en) | 2015-07-16 | 2015-07-16 | Energy -conserving water supply equipment of full frequency conversion of double -core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520515369.6U CN204983033U (en) | 2015-07-16 | 2015-07-16 | Energy -conserving water supply equipment of full frequency conversion of double -core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204983033U true CN204983033U (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520515369.6U Active CN204983033U (en) | 2015-07-16 | 2015-07-16 | Energy -conserving water supply equipment of full frequency conversion of double -core |
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| CN (1) | CN204983033U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110952614A (en) * | 2019-11-27 | 2020-04-03 | 太原市汾源供水设备有限公司 | Secondary water supply equipment for servo motor |
-
2015
- 2015-07-16 CN CN201520515369.6U patent/CN204983033U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110952614A (en) * | 2019-11-27 | 2020-04-03 | 太原市汾源供水设备有限公司 | Secondary water supply equipment for servo motor |
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