CN102444569A - Automatic control device and method for pump - Google Patents
Automatic control device and method for pump Download PDFInfo
- Publication number
- CN102444569A CN102444569A CN2010105092340A CN201010509234A CN102444569A CN 102444569 A CN102444569 A CN 102444569A CN 2010105092340 A CN2010105092340 A CN 2010105092340A CN 201010509234 A CN201010509234 A CN 201010509234A CN 102444569 A CN102444569 A CN 102444569A
- Authority
- CN
- China
- Prior art keywords
- flow
- pump
- converter unit
- judge
- hydraulic pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Control Of Non-Positive-Displacement Pumps (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention relates to an automatic control device and method for a pump. The device comprises a variable-frequency unit taken as a control center, wherein the input end of the variable-frequency unit is connected with a water temperature sensor, a water level sensor and a water pressure sensor; and in the variable-frequency unit, the judged results of water temperature, water level and water pressure in the pump obtained by using the water temperature sensor, the water level sensor and the water pressure sensor are taken as bases for running or stopping a motor inside the pump. In the invention, the water level is detected by using the water level sensor and is converted into flow by using the variable-frequency unit, so that the flow can be sensed accurately in comparison to the prior art, and the variable-frequency unit can be used for controlling the motor to run or stop accurately.
Description
Technical field
The present invention relates to a kind of automatic controller and method of pump, particularly a kind of accurately senses flow is through the characteristic of pump current, and establishes the running of motor and automatic controller that stops and method in the control pump.
Background technique
In modern times society because of the lifting of building skill, build factor such as ground price rise; So the floor of building is more and more high; But the hydraulic pressure of general tap water pipeline can't directly be sent to the floor more than the floor of plane with tap water, so need to utilize pump that water is pressurizeed at attic installing water tower; So that water is stamped water tower, distribute the water to each floor by water tower again and use.Can know that by the preamble description pump is social in modern times with the key player who plays the part of waterborne, the normal running for pump can be stablized for a long time, the device that needs control pump is responded to the running of control pump.
Pump inside is provided with at least one motor; The existing pump control gear include one be used for control pump action master controller and be located at the hydraulic pressure detector of this master controller input end; Wherein this hydraulic pressure detector is located at the outlet pipe place of pump; To detect water pressure conditions through current; Detected variation in water pressure can feed back to master controller, lets the variation of master controller conversion hydraulic pressure and water consumption, judges that in response to the variation of hydraulic pressure and water consumption the motor in the pump need turn round or stop.
Only; Because of the variation of hydraulic pressure and water consumption in the existing pump control gear all is to detect with the hydraulic pressure detector; But depend merely on the detected parameter conversion of hydraulic pressure detector water consumption, the water usage data that obtains is comparatively rough, can't let master controller do comparatively accurately and judge; And this master controller can only decide from the variation of hydraulic pressure and water consumption in the pump motor running whether; Like pump the otherwise unusual condition of generation is arranged, this master controller can't be learnt unusual condition, and more leisure opinion is done further judgement and disposed with the protection pump.The above person is all existing technology and does not attain desirable part, remains in fact further to be examined, and seeks feasible solution.
Summary of the invention
Because the shortcoming of aforementioned existing technology, the object of the present invention is to provide a kind of automatic controller and method of pump, its accurately senses flow and then establish the running of motor in the control pump or stop through the characteristic of pump current.
For reaching aforementioned purpose, the present invention provides a kind of automatic controller of pump, includes:
One converter unit, it has calculation function, and as a control maincenter;
One water temperature sensor is connected with an input end of this converter unit, has flow through the water temperature of establishing the motor current in the pump in order to sensing, and information is sent to this converter unit;
One water level sensor is connected with an input end of this converter unit, in order to the water level situation in the sensing pump, and information is sent to this converter unit;
One hydraulic pressure sensor is connected with an input end of this converter unit, and is located at the outlet pipe place of a pump, in order to the water pressure conditions of sensing through current, and information is sent to this converter unit;
Aforementioned converter unit is in principle according to water temperature sensor, water level sensor and the hydraulic pressure sensor judged result for water temperature, water level and hydraulic pressure in the pump, with the running of establishing motor in the control pump or stop.
For reaching aforementioned purpose, the present invention also provides a kind of autocontrol method of pump, may further comprise the steps:
Judge the water temperature height that has flow through pump inner motor current;
As do not surpass limit temperature, promptly judge water pressure conditions and flow size;
Be higher than one like flow and set flow value, then motor running;
Be not higher than one like flow and set flow value and hydraulic pressure and be higher than one and set hydraulic pressure value, then carry out one first pattern;
Be not higher than one like flow and set flow value and hydraulic pressure and be not higher than one and set hydraulic pressure value, then carry out one second pattern and a three-mode in regular turn.
When the signal of sending into via the water temperature sensor when converter unit judged that water temperature surpasses limits value, it was too high to establish motor temperature in the expression pump, thus make motor shut down, and get back to water temperature judgement at the beginning; When measurement result is a water temperature when surpassing the restriction water temperature, this converter unit will judge whether hydraulic pressure is higher than one and sets hydraulic pressure value through the hydraulic pressure sensor, and detect water level with water level sensor and send converter unit to; Let converter unit that water level is converted into flow and judge whether flow is higher than one and sets flow value, sets hydraulic pressure value like hydraulic pressure greater than one, and flow is higher than a setting flow value; Or hydraulic pressure is not more than a setting hydraulic pressure value; And when flow was higher than a setting flow value, expression water flow was big, and the hydraulic pressure in the pump will soon be not enough to it is transported to eminence; Then converter unit just can make the motor running in this pump, and the water temperature of getting back to is at the beginning judged; Set hydraulic pressure value like hydraulic pressure greater than one, and flow is not higher than one when setting flow value, expression water flow is little; The inner water yield of pump also is enough to it is transported to eminence, so this converter unit is just carried out one first execution stroke, and this converter unit set time that picks up counting; And the judgement flow that continues at this moment; Be higher than one when setting flow value like flow, motor running then, as flow behind a set time never when setting flow value; Then motor shuts down, and the water temperature of getting back to is at the beginning judged; Be not more than one like hydraulic pressure and set hydraulic pressure value, and flow is not higher than one when setting flow value, represent that at this moment water flow is little, this moment, this converter unit can let motor running; Continue to judge flow again, be not more than the setting flow value, just can pick up counting a set time and the judgement flow that continues at this moment of this converter unit then like flow; When being higher than a setting flow value like flow, then the time is recomputated and continues to judge flow, when behind a set time, never being higher than the setting flow value like flow; Then motor shuts down, and this moment, this converter unit began to carry out three-mode, and this converter unit continues to judge flow at this moment; Greater than setting value, then motor running is not more than setting value like flow like flow; Then this converter unit set time that just can pick up counting just can turn round through motor behind this set time again, and the judgement flow that in timing time, continues of this converter unit; When being higher than a setting flow value like flow, just then motor running ahead of time, and the water temperature of getting back to is at the beginning judged.
Because in the pump flow be by converter unit according to the water level sensor detecting and convert and get, so can comparatively accurate senses flow through the flow of pump current, and make converter unit establish the running of motor in the control pump more accurately or stop.And the present invention has a water temperature sensor, but its senses flow is crossed the water temperature of the current of pump inner motor, and information is sent to this converter unit; When limiting water temperature as surpassing when water temperature sensor measuring water temperature; The motor temperature of expression pump inside is too high, after this converter unit is learnt the too high unusual condition of temperature, just can judge and control motor it is shut down; Avoid abnormal high temperature and damage with the protection pump, so the present invention has the excellent protection effect for pump.
Description of drawings
Fig. 1 is the Block Diagram of the present invention's one preferred embodiment;
Fig. 2 is the flow chart of the present invention's one preferred embodiment;
Fig. 3 is the flow chart of the present invention's one preferred embodiment first pattern;
Fig. 4 is the flow chart of the present invention's one preferred embodiment second pattern;
Fig. 5 is the flow chart of the present invention's one preferred embodiment three-mode.
Description of reference numerals: 10-converter unit; 20-water temperature sensor; The 30-water level sensor; 40-hydraulic pressure sensor; The 50-pump; The 51-motor; The 70-display unit.
Embodiment
Following conjunction with figs. illustration embodiments of the invention are to specify technology contents of the present invention.
Fig. 1 is the Block Diagram of the present invention's one preferred embodiment; Mainly be to make the input end of a converter unit 10 be arranged with a water temperature sensor 20, a water level sensor 30 and a hydraulic pressure sensor 40; This converter unit 10 has calculation function, and according to this as a control maincenter, is provided with a pump 50 at the output terminal of this converter unit 10; Be provided with at least one motor 51 in this pump 50, this water temperature sensor 20 is in order to detect through establishing the water temperature of motor 51 current in the pump 50; This water level sensor 30 is in order to the height of the water level in the testing pump 50; Hydraulic pressure sensor 40 is located at the outlet pipe place of pump 50 again; In order to the water pressure conditions of detection through current, and this water temperature sensor 20, water level sensor 30 and hydraulic pressure sensor 40 can be sent to this converter unit 10 with the information that senses.
In this preferred embodiment; This converter unit 10 includes a microcontroller; This microcontroller can be a wafer; And this converter unit 10 is connected with a display unit 70, and this display unit 70 can show the information that water temperature sensor 20, water level sensor 30 and hydraulic pressure sensor 40 are detected, also can show water temperature, water level, hydraulic pressure with through this converter unit 10 from the flow of water level conversion whether greater than limits value or setting value.
See also shown in Figure 2; This figure is the workflow diagram of aforementioned automatic controller; Aforementioned converter unit 10 is located at the foundation that pump 50 inner motors 51 turn round or stop in principle according to water temperature sensor 20, water level sensor 30 and the judged result of hydraulic pressure sensor 40 for water temperature, water level and hydraulic pressure in the pump 50 as control; At first carry out temperature judgement 601 by 20 detectings of water temperature sensor through the water temperature of pump 50 inner motors 51 current, if water temperature surpasses when limiting water temperature, motor 51 temperature of expression pump 50 inside are too high, and motor 51 shuts down, and gets back to step 601; When water temperature sensor 20 measurement results are that water temperature is when surpassing the restriction water temperature; This converter unit 10 can judge whether hydraulic pressure is higher than one and sets hydraulic pressure value 602 with the information that this hydraulic pressure sensor 40 provides, and sends converter unit 10 to water level sensor 30 detecting water levels, lets converter unit 10 that water level is converted into flow and judges whether flow is higher than one and sets flow value 603,604; Set hydraulic pressure value like hydraulic pressure greater than one; And flow is higher than one and sets flow value, or hydraulic pressure is not more than one and sets hydraulic pressure value, and flow is higher than one when setting flow value; Expression water flow is big; Hydraulic pressure in the pump 50 will soon be not enough to it is transported to eminence, so this converter unit 10 just can make motors 51 runnings in this pump 50, and get back to step 601; Set hydraulic pressure value like hydraulic pressure greater than one, and flow is not higher than one when setting flow value, expression water flow is little, and the pump 50 inner water yields also are enough to it is transported to eminence, so just this converter unit 10 can begin to carry out first pattern 610;
See also shown in Figure 3ly, this first pattern 610 picks up counting 611 earlier, and judges that whether timing time is more than or equal to set time 612; As judging then that less than set time whether flow is greater than setting flow value 613; Like flow greater than setting flow value, then converter unit 10 drive motors 51 runnings, like timing time more than or equal to set time 613; Then converter unit 10 orders about motor 51 and shuts down, and gets back to step 601;
Be not more than one like hydraulic pressure and set hydraulic pressure value, and flow is not higher than when setting flow value, represent that at this moment water flow is little, this moment, this converter unit 10 began to carry out second pattern 620;
See also shown in Figure 4ly, second pattern 620 by 51 runnings of converter unit 10 drive motors, is judged flow 621 earlier again; Be not more than the setting flow value like flow, just then this converter unit 10 can judge whether to have picked up counting 622, as otherwise pick up counting; Then continue timing in this way, and whether judge timing time, as then continuing to judge flow 621 less than set time more than or equal to set time 623; Like flow when setting flow value; Then timing time makes zero and continues to judge flow 621, and more than or equal to set time 623, then converter unit 10 orders about motor 51 and shuts down like timing time; This moment, this converter unit 10 began to carry out three-mode 630;
See also shown in Figure 5ly, three-mode 620 is continued to judge flows 631 by this converter unit 10 earlier, is not more than the setting flow value like flow; Then this converter unit 10 just can judge whether to have picked up counting 632, as otherwise pick up counting, then continue timing in this way; And whether judge timing time more than or equal to set time 633, as then continue judging flow 631 less than set time, like flow greater than setting flow value; Then converter unit 10 drive motor 51 runnings ahead of time; More than or equal to set time 633, converter unit 10 still drive motor 51 turns round again, and gets back to step 601 like timing time.
Because flow is converted according to the detection signal of water level sensor by converter unit and get in the pump, thus can comparatively accurate senses flow through the flow of pump current, and make converter unit establish the running of motor in the control pump comparatively accurately or stop.And the present invention has a water temperature sensor; But its senses flow is crossed the water temperature of the current of pump inner motor, and information is sent to this converter unit, when limiting water temperature as surpassing when water temperature sensor measuring water temperature; The motor temperature of expression pump inside is too high; After this converter unit is learnt the too high unusual condition of temperature, just can judge and control motor and it shut down avoid abnormal high temperature and damage, so the present invention has the excellent protection effect for pump with the protection pump.
The above is merely preferred embodiment of the present invention; Not being that the present invention is done any pro forma restriction, though the present invention with the preferred embodiment exposure as above, yet is not in order to limit the present invention; Anyly be familiar with the professional and technical personnel; In the scope that does not break away from technological scheme of the present invention, make a little change or be modified to the equivalent embodiment of equivalent variations when the technology contents of above-mentioned announcement capable of using, be the content that does not break away from technological scheme of the present invention in every case;, all still belong in the scope of technological scheme of the present invention any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (7)
1. the automatic controller of a pump, it is connected with more than one pump, it is characterized in that, and this automatic controller includes:
One converter unit, it is as a control maincenter;
One water temperature sensor is connected with this converter unit, has flow through the water temperature of pump inner motor current in order to sensing, and information is sent to this converter unit;
One water level sensor is connected with this converter unit, in order to the water level situation in the sensing pump, and information is sent to this converter unit;
One hydraulic pressure sensor is connected with this converter unit, and is located at the outlet pipe place of a pump, in order to the water pressure conditions of sensing through current, and information is sent to this converter unit; Wherein:
Aforementioned converter unit is in principle according to water temperature sensor, water level sensor and the hydraulic pressure sensor judged result for water temperature, water level and hydraulic pressure in the pump, is located at the inner motor running of pump or stops with control.
2. the automatic controller of pump as claimed in claim 1 is characterized in that, this converter unit is connected with a display unit.
3. the automatic controller of pump as claimed in claim 2 is characterized in that, this converter unit includes a microcontroller, and this microcontroller is a wafer.
4. the autocontrol method of a pump is characterized in that, may further comprise the steps:
Judge the water temperature height that has flow through pump inner motor current;
As do not surpass limit temperature, promptly judge water pressure conditions and flow size;
Be higher than one like flow and set flow value, then motor running;
Be not higher than one like flow and set flow value and hydraulic pressure and be higher than one and set hydraulic pressure value, then carry out one first pattern;
Be not higher than one like flow and set flow value and hydraulic pressure and be not higher than one and set hydraulic pressure value, then carry out one second pattern and a three-mode in regular turn.
5. like the autocontrol method of the said pump of claim 4, it is characterized in that the workflow of this first pattern may further comprise the steps:
Pick up counting and judge that whether timing time is more than or equal to set time;
Then judge the flow size like timing time less than set time;
Greater than setting flow value, then the converter unit drive motor turns round like flow;
More than or equal to set time, then converter unit orders about motor and shuts down like timing time.
6. like the autocontrol method of the said pump of claim 4, it is characterized in that the workflow of this second pattern may further comprise the steps:
By the running of converter unit drive motor, judge the flow size again;
Be not more than the setting flow value like flow, then judge whether to pick up counting, as otherwise pick up counting, then continue timing in this way;
Judge that whether timing time is more than or equal to set time;
Then continue to judge flow like timing time less than set time;
When setting flow value, then timing time makes zero and continues to judge flow like flow;
More than or equal to set time, then converter unit orders about motor and shuts down like timing time.
7. like the autocontrol method of the said pump of claim 4, it is characterized in that the workflow of this three-mode may further comprise the steps:
This converter unit is judged the flow size;
Be not more than the setting flow value like flow, then this converter unit judges whether to pick up counting, as otherwise pick up counting, then continue timing in this way;
Judge that whether timing time is more than or equal to set time;
Then continue to judge the flow size like timing time less than set time;
Greater than setting flow value, then the converter unit drive motor turns round like flow;
More than or equal to set time, the converter unit drive motor turns round like timing time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105092340A CN102444569A (en) | 2010-10-14 | 2010-10-14 | Automatic control device and method for pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105092340A CN102444569A (en) | 2010-10-14 | 2010-10-14 | Automatic control device and method for pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102444569A true CN102444569A (en) | 2012-05-09 |
Family
ID=46007400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105092340A Pending CN102444569A (en) | 2010-10-14 | 2010-10-14 | Automatic control device and method for pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102444569A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277117A (en) * | 2013-05-31 | 2013-09-04 | 中联重科股份有限公司 | Control method and control system for adding additives into concrete spraying manipulator |
| CN105366771A (en) * | 2014-08-26 | 2016-03-02 | 恒达智能科技股份有限公司 | Reverse osmosis water purification treatment method and system |
| CN106698312A (en) * | 2017-03-09 | 2017-05-24 | 三石油智能装备有限公司 | Liquid supply system and control method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09329084A (en) * | 1993-12-22 | 1997-12-22 | Hitachi Ltd | Water supply system for water line |
| TWM324718U (en) * | 2007-05-16 | 2008-01-01 | Walrus Pump Co Ltd | Micro-computer automatic control device for lift pump |
| TWM346683U (en) * | 2008-08-15 | 2008-12-11 | Walrus Pump Co Ltd | Automatic control apparatus of pressurizing machine |
| CN201363264Y (en) * | 2009-03-18 | 2009-12-16 | 纪国忠 | Constant-temperature automatic control system for circulating water pump |
| JP2010156197A (en) * | 2004-12-03 | 2010-07-15 | Ebara Corp | Method for detecting abnormality of pressure tank, and water supply apparatus |
| CN201568323U (en) * | 2009-11-20 | 2010-09-01 | 大井泵浦工业股份有限公司 | Automatic control device of pressure machine |
-
2010
- 2010-10-14 CN CN2010105092340A patent/CN102444569A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09329084A (en) * | 1993-12-22 | 1997-12-22 | Hitachi Ltd | Water supply system for water line |
| JP2010156197A (en) * | 2004-12-03 | 2010-07-15 | Ebara Corp | Method for detecting abnormality of pressure tank, and water supply apparatus |
| TWM324718U (en) * | 2007-05-16 | 2008-01-01 | Walrus Pump Co Ltd | Micro-computer automatic control device for lift pump |
| TWM346683U (en) * | 2008-08-15 | 2008-12-11 | Walrus Pump Co Ltd | Automatic control apparatus of pressurizing machine |
| CN201363264Y (en) * | 2009-03-18 | 2009-12-16 | 纪国忠 | Constant-temperature automatic control system for circulating water pump |
| CN201568323U (en) * | 2009-11-20 | 2010-09-01 | 大井泵浦工业股份有限公司 | Automatic control device of pressure machine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277117A (en) * | 2013-05-31 | 2013-09-04 | 中联重科股份有限公司 | Control method and control system for adding additives into concrete spraying manipulator |
| CN103277117B (en) * | 2013-05-31 | 2015-09-16 | 中联重科股份有限公司 | Control method and control system for adding additives into concrete spraying manipulator |
| CN105366771A (en) * | 2014-08-26 | 2016-03-02 | 恒达智能科技股份有限公司 | Reverse osmosis water purification treatment method and system |
| CN106698312A (en) * | 2017-03-09 | 2017-05-24 | 三石油智能装备有限公司 | Liquid supply system and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2017133528A1 (en) | Water consumption monitoring method for washing machine, washing machine and washing machine system | |
| CN206128187U (en) | Intelligence monitoring device of urban water supply system based on GPRS communication | |
| CN103120576A (en) | Water draining control and detection circuit of dish-washing machine, dish-washing machine and water draining and detecting method thereof | |
| CN107956510A (en) | A kind of drainage system and method | |
| CN107063387B (en) | Water fullness detection method and device for water storage equipment and dehumidifier | |
| CN202284208U (en) | Biogas equipment monitoring device | |
| JP2009239870A5 (en) | ||
| CN104676898B (en) | Prevent the method for heater dry combustion method in water temperature heating system, device and water temperature heating system | |
| US9719241B2 (en) | Method for operating a wastewater pumping station | |
| CN104975471B (en) | A kind of detergent throwing device, washing machine and detergent excess detection method | |
| CN103488132A (en) | Automatic optimized parameter-tuning method based on indicator diagram | |
| CN102444569A (en) | Automatic control device and method for pump | |
| CN103253589A (en) | Escalator safety detection device and detection method | |
| CN201202661Y (en) | Constant pressure frequency conversion pump for water supply system | |
| CN201180515Y (en) | Automatic continuous grouting apparatus for pulling out of hole in oil field well drilling | |
| CN108975116B (en) | Elevator floor height measuring method, device, equipment and storage medium | |
| CN201812217U (en) | Dry transformer temperature controller | |
| CN204572410U (en) | A kind of constant pressure water supply control system | |
| CN202382452U (en) | Electronic automatic water leak alarm device of solar water tank | |
| CN201162664Y (en) | Measuring apparatus for oil field oil pumping machine indicating diagram without load sensor | |
| WO2017024524A1 (en) | Deep water level monitoring system for water source well | |
| CN203338050U (en) | Variable frequency intelligent control system for oil pumping machine | |
| CN205563288U (en) | Water level control device of staircase computer lab | |
| CN217027354U (en) | Building sewage pump control system | |
| CN201637332U (en) | Intelligent controller for energy-saving operation of cooling tower |
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: 20120509 |