CN201363264Y - Constant-temperature automatic control system for circulating water pump - Google Patents
Constant-temperature automatic control system for circulating water pump Download PDFInfo
- Publication number
- CN201363264Y CN201363264Y CNU2009201464008U CN200920146400U CN201363264Y CN 201363264 Y CN201363264 Y CN 201363264Y CN U2009201464008 U CNU2009201464008 U CN U2009201464008U CN 200920146400 U CN200920146400 U CN 200920146400U CN 201363264 Y CN201363264 Y CN 201363264Y
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- circulating water
- control system
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Abstract
The utility model relates to a constant-temperature automatic control system for a circulating water pump, comprising a transducer, a water pump motor, a temperature sensor for detecting the temperature of a water outlet, and a temperature controller; the temperature sensor for detecting the temperature of the water outlet, the temperature controller, the transducer and the water pump motor are sequentially and serially connected; the temperature sensor is used for sending a sensed temperature to the temperature controller; the temperature controller is used for comparing the sensed temperature with a preset temperature and outputting a control signal to the transducer according to the compared result; the transducer is used for outputting a corresponding frequency according to the control signal; and the motor is used for adjusting the rotational speed and flow of the water pump according to the corresponding frequency so that the temperature of the water pump keeps constant.
Description
Technical field
The utility model relates to automation field, relates in particular to circulating water pump constant temperature automatic control system.
Background technique
The flow of circulating water pump system and pressure reduction are to lean on valve and bypass to regulate to finish at present, therefore, the phenomenon that has dam more greatly loss and big flow, high pressure, the low temperature difference inevitably, not only waste electric energy in a large number, can't regulate the flow of water pump according to variation of temperature automatically, thereby cause temperature can not fully dispel the heat at user side, flow back to thermal source again, cause unnecessary waste, can not keep a stationary temperature, temperature variation is serious, is a very adverse factors in the constant occasion the method for temperature requirement.
The model utility content
In order to solve above-mentioned technical problem, circulating water pump constant temperature automatic control system is provided, its purpose is, realizes that the constant temperature of circulating water pump system is controlled automatically, and saves electric energy.
The utility model provides circulating water pump constant temperature automatic control system, comprising: frequency variator, and pump motor is used to detect the temperature transducer of mouth of a river temperature and temperature controller; Be used to detect the temperature transducer of mouth of a river temperature, temperature controller, frequency variator and pump motor are connected in series in turn;
Temperature transducer is used for the temperature of induction is sent to temperature controller;
Temperature controller is used for the temperature of induction is compared with the temperature of presetting, and outputs control signals to frequency variator according to comparative result;
Frequency variator is used for according to this control signal output correspondent frequency;
Motor is used for adjusting according to corresponding frequency the rotating speed and the flow of water pump, makes the water pump temperature keep constant.
Control signal is the pid control signal of 4-20mA.
The lower frequency limit of frequency variator is greater than 0.
Also comprise automatic overload protection module, the automatic protection module of overvoltage, the automatic protection module of overcurrent, under-voltage automatic protection module, the automatic protection module of power supply phase shortage and/or acoustooptic alarm module.
The model of temperature controller is CD901.
The utility model makes temperature obtain constant control, has the characteristics of validity height, good stability, high energy saving.
Description of drawings
Fig. 1 is the circulating water pump constant temperature automatic control system block diagram that the utility model provides.
Embodiment
In the utility model, increase the recycle pump temperature and control automatically, change original control mode, change can not vary with temperature and the shortcoming that changes, makes temperature obtain constant control, reaches better saving electric energy.System adopts high-precision temperature controller (CD901) that pipe network is monitored, and normally operates in the assurance system in the temperature range of requirement, reaches the characteristics of validity height, good stability, high energy saving.
The circulating water pump constant temperature automatic control system that the utility model provides comprises as shown in Figure 1: frequency variator, and pump motor is used to detect the temperature transducer of mouth of a river temperature and temperature controller; Be used to detect the temperature transducer of mouth of a river temperature, temperature controller, frequency variator and pump motor are connected in series in turn.
Frequency variator cooperates with intelligent temperature controller, the automatic operation of control circle water pump.By the instrument parameter is set, at the pid control signal of its output terminal output 4-20mA, deliver to the frequency control terminal of frequency variator, be used to regulate the output frequency of frequency variator, realize the close-loop feedback control of pump rotary speed.When temperature transducer detects the user side temperature than setting when low, the output signal of temperature controller strengthens, increase the frequency output of frequency variator with this, thereby the temperature of user side is risen rapidly, when the temperature of user side is higher than setting temperature, the output signal of temperature controller reduces, and reduces the frequency output of frequency variator, and the user side temperature is reduced to setting temperature.
In the parameter of frequency variator, " lower frequency limit " can not be set to zero, because pump motor might stall like this.In a single day circulating water stop to flow, and vaporization or icing takes place in the system.The temperature transducer measured value has promptly been lost Practical significance.
The principle of " lower frequency limit " parameter setting is: pump motor is not enough to reach the temperature that needs, at this moment at " lower frequency limit " continuous service, the control signal of temperature controller output increases, the frequency variator output frequency rises, and circulating water flow increases, and temperature is adjusted.Thereafter, frequency variator is according to variation of temperature, and the size of temperature controller output signal is adjusted the rotating speed and the flow of water pump at any time, control temperature stable.
Because the flow Q of water pump, lift H, power P becomes first power with pump rotary speed n respectively, quadratic power and cube relation.Therefore, during Load Regulation, change rotating speed, air horsepower is obviously descended, thereby have significant power savings.Load is in temperature accurately to be controlled, with the power savings optimization.
The water yield is directly proportional with the rotating speed first power, water yield controlled amount, and the lift controlled amount can fully satisfy the requirement of heat supply, refrigeration or heat radiation, validity height, the special high manufacturing enterprise of adaptive temperature environmental requirement.
The working efficiency of water pump: η P=C1 (Q/n)-C2 (Q/n) 2 (Q is a water flow in the formula, and n is a rotating speed, and C1C2 is a constant) is during by the valve control water yield, and constant because of rotation speed n, and flow Q descends, so efficiency eta P decline.And by temperature control rotating speed, when rotating speed was controlled the water yield, the water yield was directly proportional with rotating speed, and (Q/n) is constant for ratio, so efficient remains the optimum state.As seen, after the employing temperature is controlled speed governing automatically, the working efficiency of water pump will greatly improve.Reduce unnecessary waste.
Adopt the rotating speed of micro computer automatic control motor, realized the soft start of motor, avoided impact, reduced breakdown rate, prolonged the working life of equipment electrical network.
Motor moves major part being lower than under the state of rated speed, has reduced the influence of noise to environment.Have automatic protection functions and sound and light of alarm such as overload, overvoltage, overcurrent, under-voltage, power supply phase shortage.
The utility model operating condition is versatile and flexible, can be completely achieved automatic control, and can carry out electric interlock with other automatic control device, the automatic protection and the computer control of realization.
Those skilled in the art can also carry out various modifications to above content under the condition that does not break away from the definite spirit and scope of the present utility model of claims.Therefore scope of the present utility model is not limited in above explanation, but determine by the scope of claims.
Claims (5)
1. circulating water pump constant temperature automatic control system is characterized in that, comprising: frequency variator, and pump motor is used to detect the temperature transducer of mouth of a river temperature and temperature controller; Be used to detect the temperature transducer of mouth of a river temperature, temperature controller, frequency variator and pump motor are connected in series in turn;
Temperature transducer is used for the temperature of induction is sent to temperature controller;
Temperature controller is used for the temperature of induction is compared with the temperature of presetting, and outputs control signals to frequency variator according to comparative result;
Frequency variator is used for according to this control signal output correspondent frequency;
Motor is used for adjusting according to corresponding frequency the rotating speed and the flow of water pump, makes the water pump temperature keep constant.
2. circulating water pump constant temperature automatic control system as claimed in claim 1 is characterized in that control signal is the pid control signal of 4-20mA.
3. circulating water pump constant temperature automatic control system as claimed in claim 1 is characterized in that the lower frequency limit of frequency variator is greater than 0.
4. circulating water pump constant temperature automatic control system as claimed in claim 1; it is characterized in that, also comprise automatic overload protection module, the automatic protection module of overvoltage, the automatic protection module of overcurrent, under-voltage automatic protection module, the automatic protection module of power supply phase shortage and/or acoustooptic alarm module.
5. circulating water pump constant temperature automatic control system as claimed in claim 1 is characterized in that the model of temperature controller is CD901.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201464008U CN201363264Y (en) | 2009-03-18 | 2009-03-18 | Constant-temperature automatic control system for circulating water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201464008U CN201363264Y (en) | 2009-03-18 | 2009-03-18 | Constant-temperature automatic control system for circulating water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201363264Y true CN201363264Y (en) | 2009-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201464008U Expired - Fee Related CN201363264Y (en) | 2009-03-18 | 2009-03-18 | Constant-temperature automatic control system for circulating water pump |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155405A (en) * | 2011-05-06 | 2011-08-17 | 沈阳工业大学 | Intelligent revolving speed control system and control method for submersible oil screw pump |
| CN102444569A (en) * | 2010-10-14 | 2012-05-09 | 大井泵浦工业股份有限公司 | Automatic control device and method for pump |
| WO2013155648A1 (en) * | 2012-04-21 | 2013-10-24 | Yu Bingyan | Culture pond pumping device and water filtration system comprising same |
| CN103620218A (en) * | 2011-04-29 | 2014-03-05 | 阿尔魏勒有限责任公司 | Pump system |
| CN104763625A (en) * | 2015-03-30 | 2015-07-08 | 吴戈 | Multifunctional automatic water pumping constant-temperature controller |
| CN105179216A (en) * | 2015-09-02 | 2015-12-23 | 宁波摩米创新工场电子科技有限公司 | Constant-temperature automatic control system for frequency stabilized vibration type water pumps based on phase-sensitive detection circuit |
| CN105179217A (en) * | 2015-09-02 | 2015-12-23 | 宁波摩米创新工场电子科技有限公司 | Constant-temperature automatic control system for circulation water pumps |
| CN105201804A (en) * | 2015-09-02 | 2015-12-30 | 宁波摩米创新工场电子科技有限公司 | Automatic constant temperature control system based on logic amplification circuit and applied to circulating water pump |
| CN105201802A (en) * | 2015-09-02 | 2015-12-30 | 宁波摩米创新工场电子科技有限公司 | Automatic constant-temperature control system based on over-temperature protection and applied to circulating water pump |
| CN105201803A (en) * | 2015-09-02 | 2015-12-30 | 宁波摩米创新工场电子科技有限公司 | Automatic constant temperature control system based on frequency stabilization circuit and applied to a circulating water pump |
| CN106121989A (en) * | 2016-08-30 | 2016-11-16 | 深圳市宏事达能源科技有限公司 | A kind of digitized pump load follows the tracks of intelligent controlling device and method |
| CN110541776A (en) * | 2019-08-19 | 2019-12-06 | 杭州电子科技大学 | Natural gas water-mixing combustion engine and water mixing control method thereof |
| CN111879906A (en) * | 2020-07-14 | 2020-11-03 | 江苏云聚汇科技有限公司 | Online test system for water quality monitoring |
-
2009
- 2009-03-18 CN CNU2009201464008U patent/CN201363264Y/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444569A (en) * | 2010-10-14 | 2012-05-09 | 大井泵浦工业股份有限公司 | Automatic control device and method for pump |
| CN103620218A (en) * | 2011-04-29 | 2014-03-05 | 阿尔魏勒有限责任公司 | Pump system |
| US9995297B2 (en) | 2011-04-29 | 2018-06-12 | Allweiler Gmbh | Pump system |
| CN102155405A (en) * | 2011-05-06 | 2011-08-17 | 沈阳工业大学 | Intelligent revolving speed control system and control method for submersible oil screw pump |
| WO2013155648A1 (en) * | 2012-04-21 | 2013-10-24 | Yu Bingyan | Culture pond pumping device and water filtration system comprising same |
| CN104763625A (en) * | 2015-03-30 | 2015-07-08 | 吴戈 | Multifunctional automatic water pumping constant-temperature controller |
| CN105201802A (en) * | 2015-09-02 | 2015-12-30 | 宁波摩米创新工场电子科技有限公司 | Automatic constant-temperature control system based on over-temperature protection and applied to circulating water pump |
| CN105201804A (en) * | 2015-09-02 | 2015-12-30 | 宁波摩米创新工场电子科技有限公司 | Automatic constant temperature control system based on logic amplification circuit and applied to circulating water pump |
| CN105179217A (en) * | 2015-09-02 | 2015-12-23 | 宁波摩米创新工场电子科技有限公司 | Constant-temperature automatic control system for circulation water pumps |
| CN105201803A (en) * | 2015-09-02 | 2015-12-30 | 宁波摩米创新工场电子科技有限公司 | Automatic constant temperature control system based on frequency stabilization circuit and applied to a circulating water pump |
| CN105179216B (en) * | 2015-09-02 | 2017-03-08 | 宁波摩米创新工场电子科技有限公司 | Frequency stabilization oscillatory type water pump constant-temperature automatic control system based on phase-sensitive detection circuit |
| CN105201802B (en) * | 2015-09-02 | 2017-03-22 | 宁波摩米创新工场电子科技有限公司 | Automatic constant-temperature control system based on over-temperature protection and applied to circulating water pump |
| CN105201803B (en) * | 2015-09-02 | 2017-03-29 | 宁波摩米创新工场电子科技有限公司 | Water circulating pump constant-temperature automatic control system based on frequency stabilization oscillating circuit |
| CN105179217B (en) * | 2015-09-02 | 2017-04-26 | 宁波摩米创新工场电子科技有限公司 | Constant-temperature automatic control system for circulation water pumps |
| CN105179216A (en) * | 2015-09-02 | 2015-12-23 | 宁波摩米创新工场电子科技有限公司 | Constant-temperature automatic control system for frequency stabilized vibration type water pumps based on phase-sensitive detection circuit |
| CN106121989A (en) * | 2016-08-30 | 2016-11-16 | 深圳市宏事达能源科技有限公司 | A kind of digitized pump load follows the tracks of intelligent controlling device and method |
| CN110541776A (en) * | 2019-08-19 | 2019-12-06 | 杭州电子科技大学 | Natural gas water-mixing combustion engine and water mixing control method thereof |
| CN111879906A (en) * | 2020-07-14 | 2020-11-03 | 江苏云聚汇科技有限公司 | Online test system for water quality monitoring |
| CN111879906B (en) * | 2020-07-14 | 2021-04-06 | 江苏云聚汇科技有限公司 | Online test system for water quality monitoring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091216 Termination date: 20120318 |