CN102865217B - Equipment for multi-pump variable frequency unit to realize simple operation and automatic testing and debugging method - Google Patents
Equipment for multi-pump variable frequency unit to realize simple operation and automatic testing and debugging method Download PDFInfo
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- CN102865217B CN102865217B CN201210082690.0A CN201210082690A CN102865217B CN 102865217 B CN102865217 B CN 102865217B CN 201210082690 A CN201210082690 A CN 201210082690A CN 102865217 B CN102865217 B CN 102865217B
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Abstract
The invention discloses equipment for a multi-pump variable frequency unit to realize simple operation, and the equipment belongs to the field of pump technology. The debugging of the existing variable frequency water supply equipment is quite complicated. The equipment comprises at least two water pumps which are connected parallelly; the water outlet of each water pump is jointly connected to a water supply pipeline through a valve; each water pump is driven by an independent motor; each motor is controlled by a transducer; each transducer is connected with a programmable controller and is matched with the programmable controller to configure a conversion switch for converting the working mode for each motor; and a pressure tank and a pressure transmitter which sends signals to the programmable controller are connected onto the water supply pipeline. The equipment is installed integrally, so that the installation process of a user is greatly simplified; and the user only needs to operate the programmable controller, the whole testing process can be realized only by setting the original set pressure P0, rotating the conversion switch, and turning on or off the valve, so that the debugging process of the user is simplified, and the complicated equipment debugging process becomes easier.
Description
Technical field
The invention belongs to pump control technique, specifically a kind of many pump frequency conversions unit is realized equipment and the automatic test and debugging method of ease of Use.
Background technique
Frequency-conversion water-supplying device is the more universal tap water supply equipment of applying on aedicula in recent years, it has environmental protection, energy-conservation, health, economic dispatch lot of advantages, but existing property management technical merit is lower, occurred problem can not be debugged and solve to general equipment all voluntarily.Present water work in use, conventionally all by user, required at small flow or automatic shutdown function during water not, and this function is got up than more complicated in debugging, needs producer to send professional workforce to debug.
Summary of the invention
The technical assignment of the technical problem to be solved in the present invention and proposition is to overcome existing frequency-conversion water-supplying device debugging than the defect of more complicated, the equipment and the automatic test and debugging method that provide a kind of many pump frequency conversions unit to realize ease of Use.
For achieving the above object, many pump frequency conversions unit of the present invention is realized the equipment of ease of Use, comprise at least two water pumps in parallel, the water outlet of each water pump is connected to supply channel jointly through valve, every water pump is driven by motor independently, it is characterized in that: every motor is controlled by frequency variator, described frequency variator connects programmable controller, match and for each motor, be configured for the throw over switch of transformation working pattern with described programmable controller, Bonding pressure tank and transmit the pressure transmitter of signal to described programmable controller on described supply channel.
Optimization technique means as above-mentioned many pumping units, are provided with one-way valve before described pressurized tank.
As the optimization technique means of above-mentioned many pumping units, Bonding pressure table on described supply channel.
As the optimization technique means of above-mentioned many pumping units, the motor described in every is controlled by same frequency variator.
Optimization technique means as above-mentioned many pumping units, are connected with display device on described programmable controller.
As the optimization technique means of above-mentioned many pumping units, described water pump, motor are arranged on a base plate, on described base plate, control box are set, and described frequency variator, programmable controller are arranged in described control box.
For achieving the above object, many pump frequency conversions unit of the present invention is realized the automatic test and debugging method of ease of Use, it is characterized in that:
By at least two water pump parallel connections, the water outlet of each water pump is connected to supply channel jointly through valve, every water pump is driven by motor independently, every motor is controlled by frequency variator, frequency variator connects programmable controller, match and for each motor, be configured for the throw over switch of transformation working pattern with programmable controller, Bonding pressure tank and transmit the pressure transmitter of signal to programmable controller on supply channel;
Only open the valve of a water outlet in the water pump being connected in parallel, each throw over switch is switched to halted state to be tested: by programmable controller, set original start pressure P 0, by programmable controller, started one by one the water pump being connected in parallel and according to original start pressure P 0 constant pressure frequency conversion, move and record the minimum operation frequency of every water pump, then the minimum operation frequency of more every water pump, gets maximum value Fmax wherein and this maximum value Fmax is increased to an increment Delta F as the sleep frequency F0 of frequency variator, this sleep frequency F0 is write to frequency variator;
By Controlled by Programmable Controller, automatically moved afterwards: the valve of opening each water outlet, each throw over switch is switched to auto state, if the actual pressure P1 that pressure transmitter records does not change, by Controlled by Programmable Controller frequency variator, by PID s operation control output frequency, drop to sleep frequency F0; Under state of dormancy, if the actual pressure P1 of exit of pump be reduced to setting wake pressure P 2 up time, by Controlled by Programmable Controller frequency variator by the work of restarting that raises of PID s operation control output frequency.
Optimization technique means as above-mentioned automatic test and debugging method, programmable controller reads actual pressure P1, the operation frequency of water pump, the actual pressure P1 and the original start pressure P 0 that compare frequency conversion unit, if actual pressure P1 equates with original start pressure P 0, can conclude that water pump turns round in constant voltage, now monitor the variation of operation frequency, every the time of setting, carry out once record, check the undulating value of frequency, repeatedly sampling, gets its maximum value as the minimum water outlet frequency of every water pump.
As the optimization technique means of above-mentioned automatic test and debugging method, described wake the 90-95% that pressure P 2 is made as original start pressure P 0 up.
The invention has the beneficial effects as follows: present device can integrative installation technology, has simplified greatly user's installation process; Simplified user's debug process, complicated equipment debugging process has been become and be more prone to.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is control principle drawing of the present invention;
Number in the figure explanation: 1-water pump, 2-valve, 3-supply channel, 4-pressurized tank, 5-pressure transmitter, 6-one-way valve, 7-pressure gauge, 8-base plate, 9-control box, 10-inlet pipeline.
Embodiment
Below in conjunction with Figure of description, the present invention will be further described.
Many pump frequency conversions unit of the present invention is realized equipment and the automatic test and debugging method of ease of Use, as Fig. 1, shown in 2, it comprises at least two water pumps in parallel 1, the water outlet of each water pump is connected to supply channel 3 jointly through valve 2, every water pump is driven by motor independently, every motor is controlled by frequency variator, frequency variator connects programmable controller, matching with programmable controller, (mode of operation comprises stop mode for each motor is configured for transformation working pattern, manual mode, automatic mode) throw over switch, Bonding pressure tank 4 and transmit the pressure transmitter 5 of signal to programmable controller on supply channel 3.Concrete, one-way valve 6 is installed, pressure release while avoiding water pump to quit work before pressurized tank 4; Bonding pressure table on supply channel, is convenient to reading and grasps system pressure; Every motor is controlled by same frequency variator (but also each pump is joined a Frequency Converter Control), cost-saved; On programmable controller, be connected with display device, convenient operation; In order to make stable equipment operation, water pump 1, motor are arranged on a base plate 8, and control box 9 is set on base plate 8, and frequency variator, programmable controller are arranged in control box 9.
Based on the said equipment, the automatic test and debugging method that many pump frequency conversions unit of the present invention is realized ease of Use is:
(this valve can be also in order to test a valve of independent installation to the valve of a water outlet in the water pump that only unlatching is connected in parallel, device should be close to water pump as much as possible), each throw over switch is switched to halted state to be tested: by programmable controller, set original start pressure P 0, by programmable controller, start one by one and (can realize by clock circuit, as complete after the test of a water pump, time delay after 1 second to the test of second water pump) water pump that is connected in parallel moves and records the minimum operation frequency of every water pump according to original start pressure P 0 constant pressure frequency conversion, then the minimum operation frequency of more every water pump, get maximum value Fmax wherein and this maximum value Fmax increased to an increment Delta F(as 0.5 Hz-1.0Hz) although identical as each pump specifications and models of sleep frequency F0(of frequency variator, because of accessory, the reason of assembly process, at same pressure, in the situation of water flow, the operating frequency of motor has small difference, so must read the operation frequency of the water outlet of each pump, then the minimum operation frequency of more every water pump, get maximum value Fmax wherein, if processing can not cause the water pump that water outlet frequency is large can not enter into state of dormancy like this), this sleep frequency F0 is write to frequency variator,
By Controlled by Programmable Controller equipment, automatically moved afterwards: the valve of manually opened each water outlet, manually each throw over switch is switched to auto state, if the actual pressure P1 that pressure transmitter records does not change (when user is not when water or small flow), by Controlled by Programmable Controller frequency variator, by PID s operation control output frequency, drop to sleep frequency F0, autostop; Under state of dormancy, if the actual pressure P1 of exit of pump be reduced to setting wake pressure P 2 up time, by Controlled by Programmable Controller frequency variator by the work of restarting that raises of PID s operation control output frequency.
Therefore, user only need operate programmable controller, sets original start pressure P 0, rotation throw over switch, unlatching or throttle down and can realize whole test process.
Concrete, because water pump is under the certain situation of constant pressure, water flow, its operation frequency substantially constant is constant so.Therefore, programmable controller reads actual pressure P1, the operation frequency of water pump, the actual pressure P1 and the original start pressure P 0 that compare frequency conversion unit, if actual pressure P1 equates with original start pressure P 0, can conclude that water pump turns round in constant voltage, now monitor the variation of operation frequency, every the time of setting, carry out once record, check the undulating value of frequency, repeatedly sampling, gets its maximum value as the minimum water outlet frequency of every water pump.
Wake the 90-95% that pressure P 2 is made as original start pressure P 0 up.
The number of units that the present invention can control water pump can reach 32 in theory.
Claims (3)
1. more than pump frequency conversion unit is realized the automatic test and debugging method of ease of Use, it is characterized in that:
By at least two water pump parallel connections, the water outlet of each water pump is connected to supply channel jointly through valve, every water pump is driven by motor independently, every motor is controlled by frequency variator, frequency variator connects programmable controller, match and for each motor, be configured for the throw over switch of transformation working pattern with programmable controller, Bonding pressure tank and transmit the pressure transmitter of signal to programmable controller on supply channel;
Only open the valve of a water outlet in the water pump being connected in parallel, each throw over switch is switched to halted state to be tested: by programmable controller, set original start pressure P 0, by programmable controller, started one by one the water pump being connected in parallel and according to original start pressure P 0 constant pressure frequency conversion, move and record the minimum operation frequency of every water pump, then the minimum operation frequency of more every water pump, gets maximum value Fmax wherein and this maximum value Fmax is increased to an increment Delta F as the sleep frequency F0 of frequency variator, this sleep frequency F0 is write to frequency variator;
By Controlled by Programmable Controller, automatically moved afterwards: the valve of opening each water outlet, each throw over switch is switched to auto state, if the actual pressure P1 that pressure transmitter records does not change, by Controlled by Programmable Controller frequency variator, by PID s operation control output frequency, drop to sleep frequency F0; Under state of dormancy, if the actual pressure P1 of exit of pump be reduced to setting wake pressure P 2 up time, by Controlled by Programmable Controller frequency variator by the work of restarting that raises of PID s operation control output frequency.
2. many pump frequency conversions unit according to claim 1 is realized the automatic test and debugging method of ease of Use, it is characterized in that: programmable controller reads actual pressure P1, the operation frequency of water pump, the actual pressure P1 and the original start pressure P 0 that compare frequency conversion unit, if actual pressure P1 equates with original start pressure P 0, can conclude that water pump turns round in constant voltage, now monitor the variation of operation frequency, every the time of setting, carry out once record, check the undulating value of frequency, repeatedly sampling, gets its maximum value as the minimum water outlet frequency of every water pump.
3. many pump frequency conversions unit according to claim 1 is realized the automatic test and debugging method of ease of Use, it is characterized in that: described wake the 90-95% that pressure P 2 is made as original start pressure P 0 up.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210082690.0A CN102865217B (en) | 2012-03-26 | 2012-03-26 | Equipment for multi-pump variable frequency unit to realize simple operation and automatic testing and debugging method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210082690.0A CN102865217B (en) | 2012-03-26 | 2012-03-26 | Equipment for multi-pump variable frequency unit to realize simple operation and automatic testing and debugging method |
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| CN102865217A CN102865217A (en) | 2013-01-09 |
| CN102865217B true CN102865217B (en) | 2014-11-26 |
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| CN106013334B (en) * | 2016-07-04 | 2018-09-04 | 重庆成峰二次供水设备有限责任公司 | A kind of wisdom suspend mode water management system |
| CN107228729A (en) * | 2017-06-18 | 2017-10-03 | 李晨天 | Prepressing type bottom valve door condition sensor based on end dynamic data analytical technology |
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| CN2416140Y (en) * | 2000-03-24 | 2001-01-24 | 李义 | Per pump equalizing distribution frquency transformer microcomputer constant voltage variable water supply equipment |
| CN201738386U (en) * | 2010-07-19 | 2011-02-09 | 威乐(中国)水泵系统有限公司 | Small intelligent water supply device |
| CN201925144U (en) * | 2011-01-05 | 2011-08-10 | 湖南星奥信息技术有限公司 | Automatic control device of mine water pump |
| CN202468260U (en) * | 2012-03-26 | 2012-10-03 | 新界泵业集团股份有限公司 | Device for realizing simple operation of multi-pump frequency converter set |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3288635B2 (en) * | 1992-02-20 | 2002-06-04 | 株式会社日立製作所 | Water supply system |
| JP2000080985A (en) * | 1998-09-07 | 2000-03-21 | Teral Kyokuto Inc | Control device for feed water device |
| JP5171013B2 (en) * | 2006-11-07 | 2013-03-27 | 株式会社川本製作所 | Method and apparatus for controlling pump operation of water supply apparatus |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2416140Y (en) * | 2000-03-24 | 2001-01-24 | 李义 | Per pump equalizing distribution frquency transformer microcomputer constant voltage variable water supply equipment |
| CN201738386U (en) * | 2010-07-19 | 2011-02-09 | 威乐(中国)水泵系统有限公司 | Small intelligent water supply device |
| CN201925144U (en) * | 2011-01-05 | 2011-08-10 | 湖南星奥信息技术有限公司 | Automatic control device of mine water pump |
| CN202468260U (en) * | 2012-03-26 | 2012-10-03 | 新界泵业集团股份有限公司 | Device for realizing simple operation of multi-pump frequency converter set |
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Effective date of registration: 20200706 Address after: Wenling City, Taizhou City, Zhejiang Province town of Ocean City 317525 Industrial Zone Patentee after: SHIMGE PUMP (ZHEJIANG) Co.,Ltd. Address before: Wenling City, Taizhou City, Zhejiang Province town of Ocean City 317525 Industrial Zone Patentee before: SHIMGE PUMP INDUSTRY Co.,Ltd. |
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