CN103615380A - Non-sensor constant-pressure pump and valve integrated device - Google Patents
Non-sensor constant-pressure pump and valve integrated device Download PDFInfo
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- CN103615380A CN103615380A CN201310659230.4A CN201310659230A CN103615380A CN 103615380 A CN103615380 A CN 103615380A CN 201310659230 A CN201310659230 A CN 201310659230A CN 103615380 A CN103615380 A CN 103615380A
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Abstract
The invention relates to a water pump control technology, and aims to provide a non-sensor constant-pressure pump and valve integrated device which is applied to heating ventilation and refrigeration for improving the energy efficiency. The non-sensor constant-pressure pump and valve integrated device comprises a water pump. A motor of the water pump is connected with an information monitoring and analyzing device and valve body adjustment components are arranged on an inlet pipeline of the water pump and an outlet pipeline of the water pump respectively. The information monitoring and analyzing device and the two valve body adjustment components are connected to wiring terminals respectively through cables, and the wiring terminals are sequentially connected with a programmable controller and an industrial personal computer through cables. According to the device, corresponding flow parameters are obtained through voltage and current signals, the pressure of a pipe network can be kept constant by controlling the opening degree of a valve according to the characteristic curvature of the device under the working condition and the Kv value of the device at the moment, pressure signals can be obtained more quickly and the pressure signals are more accurate.
Description
Technical field
The present invention relates to water pump control technique, be particularly applied to improve a kind of without sensing constant voltage pump valve integrate device of efficiency in HVAC refrigeration.
Background technique
Water pump and valve are widely used in the device of the distributing systems such as air-conditioner water system, district heating water system, industrial circulating water system, but the operation energy consumption of traditional distributing system is very large, and water pump operation continuously at full capacity often, and automaticity is low.For the obtain manner of pressure signal, traditional method is to obtain by flowmeter, and in this process, also wants the participation of pressure transducer, and this process of obtaining signal exists the regular hour to postpone.After obtaining pressure signal, then by regulating the valve in water pump or the frequency of blower fan and pipe network, make adjustment process veryer long, accuracy is not good enough.
In order to overcome the above problems, just must design a kind of pump valve integrate device, can effectively shorten retard time simultaneously.
Summary of the invention
The technical problem to be solved in the present invention is, overcomes the deficiencies in the prior art, provide a kind of be applied in distributing system without sensing constant voltage pump valve integrate device.
For technical solution problem, the present invention by the following technical solutions:
Provide a kind of without sensing constant voltage pump valve integrate device, comprise water pump; The motor of water pump is connected with information monitoring and analytical equipment, on the suction line of water pump and outlet line, valve body adjusting part is set respectively; Information monitoring and analytical equipment, two valve body adjusting parts are connected to tenminal block by cable respectively, and tenminal block connects programmable controller, process control machine successively through cable;
Built-in flow computing module in described information monitoring and analytical equipment, can calculate and obtain ductwork pressure according to following formula:
N=QHρ/102η=9.8QH/η （1）
In formula: N is water pump total output, KW; Q is water main flow, m
3/ h; H is total pipe pressure, KPa; ρ is fluid density, g/cm
3; η is pump efficiency; P
2for downstream pressure, Kpa; P
1for upstream pressure, KPa; K
vfor flow coefficient, refer to when pipeline keeps constant pressure in the unit time, in test condition pipeline medium flow through volume flowrate or the mass flow rate of valve, i.e. the maximum flow ability of valve.
In the present invention, described valve body adjusting part is manual modulation valve or electric control valve.
In the present invention, described tenminal block connects the input end of programmable controller through cable, and the digital quantity of programmable controller is directly connected with information monitoring and analytical equipment with analog output end.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention is with different with traditional pressure signal obtain manner, this device carrys out transmission of signal without pressure transducer, but obtain corresponding flow parameter by voltage and current signal, characteristic curve according to this device under this operating mode and this device Kv value at this moment, just can keep pipe network constant pressure by control valve aperture.
Provided by the invention without sensing pump valve integrate device, more more quick than conventional pressure signal obtain manner, and also more accurate.
Accompanying drawing explanation
Fig. 1 is of the present invention without sensing pump valve integrate device schematic diagram;
Fig. 2 is the corresponding flow parameter schematic diagram of voltage and current signal;
Fig. 3 is without the operating conditions curve of sensing pump valve integrate device.
In figure: 1 water pump, 2 information monitorings and analytical equipment, 3 valve body adjusting parts, 4 tenminal blocks, 5 programmable controllers, 6 process control machines.
Embodiment
Below by embodiment, by reference to the accompanying drawings, technological scheme of the present invention is described in further detail:
First it should be noted that, the present invention relates to computer technology in a kind of application in control technique field.In implementation procedure of the present invention, can relate to the application of software function module.Claimant thinks, as reading over application documents, accurate understanding is of the present invention realize principle and goal of the invention after, in conjunction with existing known technology in the situation that, those skilled in the art can use the software programming technical ability of its grasp to realize the present invention completely.Aforementioned software function module comprises but is not limited to: flow computing module etc., and this category of all genus that all the present patent application files are mentioned, claimant will not enumerate.
In Fig. 1, provided the schematic flow sheet of this device.
Without sensing constant current pump valve integrate device, comprise water pump 1, the motor of water pump 1 is connected with information monitoring and analytical equipment 2, on the suction line of water pump 1 and outlet line, valve body adjusting part 3 is set respectively, and valve body adjusting part 3 is manual modulation valve or electric control valve.Information monitoring and analytical equipment 2, two valve body adjusting parts 3 are connected to tenminal block 4 by cable respectively, and tenminal block 4 connects programmable controller 5, process control machine 6 successively through cable.
In the present invention, information monitoring and analytical equipment 2 are mature technologies, can select the Smart 1000IE 6AV66480BE113AX0 product of SIEMENS, are mainly used in the present invention information monitoring and the analysing and processing of motor operating parameter.Built-in flow computing module in information monitoring and analytical equipment 2, can calculate and obtain ductwork pressure according to following formula:
N=QHρ/102η=9.8QH/η （1）
In formula: N is water pump total output, KW; Q is water main flow, m
3/ h; H is total pipe pressure, KPa; ρ is fluid density, g/cm
3; η is pump efficiency; P
2for downstream pressure, Kpa; P
1for upstream pressure, KPa; K
vfor flow coefficient, refer to that in the unit time, in test condition, pipeline keeps constant pressure, pipeline medium flow through volume flowrate or the mass flow rate of valve, i.e. the maximum flow ability of valve.
At this device run duration, information monitoring and analytical equipment 2 voltage and current signals of Real-Time Monitoring water pump 1 and the rotating speed of water pump.When the load of system changes, voltage and current signal also can change thereupon.The power of water pump 1 motor is the product of electric current and voltage and power factor, and power of motor is relevant to the power of water pump, and the power of water pump 1 is again the function of flow and lift,
N=QHρ/102η=9.8QH/η
According to the voltage and current signal monitoring and the rotating speed of water pump, and water pump 1 performance curve, as Fig. 2, just can contrast out the flow parameter under this operating mode, by flow and pressure operation relation and the operation curve figure under this operating mode, just can obtain this device pressure P now more afterwards
1, as Fig. 3, then according to the flow coefficient k of this device
v, just can access the pressure of pipe network, formula is as follows:
By data monitoring and the Treatment Analysis of this device, just can make the pressure of pipe network keep constant by regulation valve body assembly, and meet the demand of load.In the transmittance process of whole information, all there is no the participation of pressure transducer, make it possible to the variation of load to regulate fast to meet workload demand, there is very high accuracy.
Claims (3)
1. without a sensing constant voltage pump valve integrate device, comprise water pump; It is characterized in that, the motor of water pump is connected with information monitoring and analytical equipment, on the suction line of water pump and outlet line, valve body adjusting part is set respectively; Information monitoring and analytical equipment, two valve body adjusting parts are connected to tenminal block by cable respectively, and tenminal block connects programmable controller, process control machine successively through cable;
Built-in flow computing module in described information monitoring and analytical equipment, can calculate and obtain ductwork pressure according to following formula:
N=QHρ/102η=9.8QH/η （1）
In formula: N is water pump total output, KW; Q is water main flow, m
3/ h; H is total pipe pressure, KPa; ρ is fluid density, g/cm
3; η is pump efficiency; P
2for downstream pressure, Kpa; P
1for upstream pressure, KPa; K
vfor flow coefficient, refer to when pipeline keeps constant pressure in the unit time, in test condition pipeline medium flow through volume flowrate or the mass flow rate of valve, i.e. the maximum flow ability of valve.
2. according to claim 1ly without sensing constant voltage pump valve integrate device, it is characterized in that, described valve body adjusting part is manual modulation valve or electric control valve.
3. according to claim 1 without sensing constant voltage pump valve integrate device, it is characterized in that, described tenminal block connects the input end of programmable controller through cable, the digital quantity of programmable controller is directly connected with information monitoring and analytical equipment with analog output end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310659230.4A CN103615380B (en) | 2013-12-06 | 2013-12-06 | Without sensing constant voltage pump valve integrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310659230.4A CN103615380B (en) | 2013-12-06 | 2013-12-06 | Without sensing constant voltage pump valve integrating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103615380A true CN103615380A (en) | 2014-03-05 |
| CN103615380B CN103615380B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310659230.4A Active CN103615380B (en) | 2013-12-06 | 2013-12-06 | Without sensing constant voltage pump valve integrating device |
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| CN (1) | CN103615380B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107820556A (en) * | 2015-04-02 | 2018-03-20 | 贝利莫控股公司 | For the method and system for the characterisitic parameter for determining hydraulic pressure network |
| CN110333030A (en) * | 2019-06-18 | 2019-10-15 | 宁波水分子电器科技有限公司 | A kind of jetting machine pressure monitoring method |
| CN114355761A (en) * | 2021-12-29 | 2022-04-15 | 江苏大学 | Current-closed-loop-based water pump constant-pressure and flow control measuring platform and identification method |
Citations (4)
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|---|---|---|---|---|
| US5725357A (en) * | 1995-04-03 | 1998-03-10 | Ntn Corporation | Magnetically suspended type pump |
| US20050031443A1 (en) * | 2001-10-09 | 2005-02-10 | Bertil Ohlsson | Device, system and method for on-line monitoring of flow quantities |
| CN102367793A (en) * | 2011-08-23 | 2012-03-07 | 杭州哲达科技股份有限公司 | Efficient method and pump valve integrated energy-saving device for water pump |
| CN103328822A (en) * | 2010-11-17 | 2013-09-25 | Ksb股份公司 | Method and control device for the rotational-speed-variable control of an expeller pump unit and expeller pump arrangement |
-
2013
- 2013-12-06 CN CN201310659230.4A patent/CN103615380B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5725357A (en) * | 1995-04-03 | 1998-03-10 | Ntn Corporation | Magnetically suspended type pump |
| US20050031443A1 (en) * | 2001-10-09 | 2005-02-10 | Bertil Ohlsson | Device, system and method for on-line monitoring of flow quantities |
| CN103328822A (en) * | 2010-11-17 | 2013-09-25 | Ksb股份公司 | Method and control device for the rotational-speed-variable control of an expeller pump unit and expeller pump arrangement |
| CN102367793A (en) * | 2011-08-23 | 2012-03-07 | 杭州哲达科技股份有限公司 | Efficient method and pump valve integrated energy-saving device for water pump |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107820556A (en) * | 2015-04-02 | 2018-03-20 | 贝利莫控股公司 | For the method and system for the characterisitic parameter for determining hydraulic pressure network |
| CN110333030A (en) * | 2019-06-18 | 2019-10-15 | 宁波水分子电器科技有限公司 | A kind of jetting machine pressure monitoring method |
| CN114355761A (en) * | 2021-12-29 | 2022-04-15 | 江苏大学 | Current-closed-loop-based water pump constant-pressure and flow control measuring platform and identification method |
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|---|---|
| CN103615380B (en) | 2016-08-17 |
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Denomination of invention: Sensorless constant pressure pump valve integrated device Effective date of registration: 20220507 Granted publication date: 20160817 Pledgee: Hangzhou United Rural Commercial Bank Limited by Share Ltd. Baoshan Branch Pledgor: HANGZHOU ZETA ENERGY-SAVING TECHNOLOGY Co.,Ltd. Registration number: Y2022980005166 |