CN105201803A - Automatic constant temperature control system based on frequency stabilization circuit and applied to a circulating water pump - Google Patents
Automatic constant temperature control system based on frequency stabilization circuit and applied to a circulating water pump Download PDFInfo
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- CN105201803A CN105201803A CN201510556477.2A CN201510556477A CN105201803A CN 105201803 A CN105201803 A CN 105201803A CN 201510556477 A CN201510556477 A CN 201510556477A CN 105201803 A CN105201803 A CN 105201803A
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- 230000006641 stabilisation Effects 0.000 title claims description 25
- 238000011105 stabilization Methods 0.000 title claims description 25
- 238000006243 chemical reaction Methods 0.000 claims description 31
- 239000002699 waste material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The invention discloses an automatic constant temperature control system based on a frequency stabilization circuit and applied to a circulating water pump. The automatic constant temperature control system comprises the circulating water pump, a frequency converter connected with a control terminal of the circulating water pump, a pressure regulator, a temperature regulator, a pressure sensor arranged at a water outlet of the circulating water pump, a temperature sensor arranged at a water inlet of the circulating water pump and a temperature signal conversion module connected with the temperature sensor, wherein the pressure regulator and the temperature regulator are connected with the frequency converter, the pressure sensor is connected with the pressure regulator, and the temperature signal conversion module is connected with the temperature regulator. The automatic constant temperature control system is characterized in that the frequency stabilization circuit connected with the temperature signal conversion module is further arranged. The automatic constant temperature control system can better control the temperature signal conversion module through the frequency stabilization circuit, so that the temperature signal conversion effect is better, and the efficiency is high.
Description
Technical field
The present invention relates to automation field, specifically refer to the circulating water pump constant-temperature automatic control system based on frequency stabilization vibrator circuit.
Background technique
The flow of current Circulating Pump System and pressure reduction regulate by valve and bypass, therefore, inevitably existing dam more greatly loss and large discharge, high pressure, Low Temperature Difference phenomenon, not only waste electric energy in a large number, and the flow of water pump automatically can not be regulated according to the change of temperature, this just causes circulating water temperature can not fully dispel the heat at user side, flow back to thermal source again, cause unnecessary waste, simultaneously, also circulating water cannot be made to keep a stationary temperature value, therefore requiring occasion the method for constant temperature then and inapplicable.How to solve the problem, be the task of top priority of current people.
Summary of the invention
The object of the invention is to overcome traditional Circulating Pump System and automatically to the defect that temperature controls, a kind of circulating water pump constant-temperature automatic control system based on frequency stabilization vibrator circuit cannot be provided.
Object of the present invention is achieved through the following technical solutions: based on the circulating water pump constant-temperature automatic control system of frequency stabilization vibrator circuit, by circulating water pump, the frequency variator be connected with circulating water pump control end, the pressure regulator be connected with frequency variator and duct thermostat, be arranged on the pressure transducer of circulating water pump water outlet, be arranged on the temperature transducer of circulating water pump water intake, the temperature signal modular converter be connected with temperature transducer, and the frequency stabilization vibrator circuit be connected with temperature signal modular converter forms; Described pressure transducer is also connected with pressure regulator, and temperature signal modular converter is then connected with duct thermostat.
Described frequency stabilization vibrator circuit is by transformer T1, triode VT3, triode VT4, positive pole is connected with the emitter of triode VT3, negative pole is then in turn through electric capacity C7 that resistance R8 is connected with the Same Name of Ends on the former limit of transformer T1 after resistance R7, positive pole is connected with the Same Name of Ends on the former limit of transformer T1, the electric capacity C5 of minus earth, be serially connected in the electric capacity C6 between the Same Name of Ends on the former limit of transformer T1 and non-same polarity, input end is connected with the collector electrode of triode VT3, the oscillator X that output terminal is then connected with the non-same polarity on the former limit of transformer T1, positive pole is connected with the emitter of triode VT4, the electric capacity C8 that negative pole is then connected with the negative pole of electric capacity C7, and one end is connected with the emitter of triode VT4, while the other end is then connected with the negative pole of electric capacity C8, the resistance R9 of ground connection forms, the base stage of described triode VT3 is connected with the tie point of resistance R8 with resistance R7, and its emitter is then connected with the base stage of triode VT4, the non-same polarity on the described former limit of transformer T1 is connected with the collector electrode of triode VT4, and its Same Name of Ends then connects 15V voltage, the Same Name of Ends ground connection of described transformer T1 secondary, its non-same polarity then forms the output terminal of this frequency stabilization vibrator circuit.
Further, described temperature signal modular converter then by transformer T, the change-over circuit be connected with the former limit of transformer T, and the output circuit be connected with transformer T secondary forms.
Described change-over circuit is by triode VT1, triode VT2, conversion chip U, one end is connected with the Same Name of Ends on the former limit of transformer T, the other end is the resistance R3 of ground connection after resistance R2 then, N pole is connected with the EN/UVLO pin of conversion chip U, the diode D1 that P pole is then connected with the collector electrode of triode VT1, one end is connected with the RFB pin of conversion chip U, the resistance R5 that the other end is then connected with the non-same polarity on the former limit of transformer T, P pole is connected with the Same Name of Ends on the former limit of transformer T, the reference diode D2 that N pole is then connected with the non-same polarity on the former limit of transformer T after diode D3, one end is connected with the RREF pin of conversion chip U, the resistance R6 of the other end ground connection, the RC eliminator be connected with the TC pin of conversion chip U, positive pole is connected with the VC pin of conversion chip U after resistance R4, the electric capacity C2 of minus earth, and positive pole is connected with the BIAS pin of conversion chip U, the electric capacity C3 that negative pole is then connected with the negative pole of electric capacity C2 forms, the EN/UVLO pin of described conversion chip U is connected with the tie point of resistance R2 with resistance R3, its VIN pin connects 15V voltage while being then connected with the Same Name of Ends on the former limit of transformer T, its BIAS pin is then connected with the base stage of triode VT2, and its GND pin is then connected with the negative pole of electric capacity C3, the collector electrode of described triode VT2 is connected with the non-same polarity on the former limit of transformer T, its grounded-emitter connection.
Described RC eliminator comprises electric capacity C1 and resistance R1; Described electric capacity C1 and resistance R1 is in parallel, and an one common end is connected with the TC pin of conversion chip U, forms the input end of this temperature signal modular converter while its another common end is then connected with the negative pole of electric capacity C2 together with the base stage of triode VT1.
Described output circuit comprises reference diode D4 and electric capacity C4; The output terminal that the P pole of described reference diode D4 is connected with the non-same polarity of transformer T secondary, its N pole then forms this temperature signal modular converter together with the Same Name of Ends of transformer T secondary, the positive pole of described electric capacity C4 is connected with the N pole of reference diode D4, its negative pole is then connected with the Same Name of Ends of transformer T secondary.
Described conversion chip U is LT3512 integrated chip.
The present invention comparatively prior art compares, and has the following advantages and beneficial effect:
(1) the present invention can regulate the circulating water temperature in circulating water pump automatically, makes circulating water maintain stationary temperature, can utilize heat energy fully like this, avoid thermal waste.
(2) the present invention can regulate the circulating water pressure in circulating water pump automatically, makes circulating water pump be in best working state, extends the operating life of circulating water pump.
(3) the present invention can better be controlled temperature signal modular converter by frequency stabilization vibrator circuit, thus makes the conversion effect of temperature signal better, and efficiency is higher.
Accompanying drawing explanation
Fig. 1 is overall structure block diagram of the present invention.
Fig. 2 is temperature signal modular converter circuit structure diagram of the present invention.
Fig. 3 is the structural drawing of frequency stabilization vibrator circuit of the present invention.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment
As shown in Figure 1, circulating water pump constant-temperature automatic control system based on frequency stabilization vibrator circuit of the present invention, by circulating water pump, the frequency variator be connected with circulating water pump control end, the pressure regulator be connected with frequency variator and duct thermostat, be arranged on the pressure transducer of circulating water pump water outlet, is arranged on the temperature transducer of circulating water pump water intake, the temperature signal modular converter be connected with temperature transducer, and the frequency stabilization vibrator circuit be connected with temperature signal modular converter forms; Described pressure transducer is also connected with pressure regulator, and temperature signal modular converter is then connected with duct thermostat.
Wherein, this pressure transducer for gathering the pressure signal of circulating water in circulating water pump, and is transferred to pressure regulator, and pressure regulator can send corresponding circulating water pump control signal according to pressure signal to frequency variator.Temperature transducer is for gathering the temperature signal of circulating water in circulating water pump, and be transferred to temperature signal modular converter, this temperature signal modular converter can be converted to temperature signal the digital signal that system can identify, frequency stabilization vibrator circuit is then for controlling temperature signal modular converter.This duct thermostat internal preset has the temperature of circulating water, and it can compare the circulating water real time temperature sensed and preset temperature, and sends circulating water pump control signal according to comparative result to frequency variator.The circulating water pump control signal that this frequency variator then can send according to pressure regulator and duct thermostat exports corresponding frequency, controls, and then makes the water temperature of circulating water identical with default water temperature, and keep constant to the rotating speed of circulating water pump and flow.
In order to better implement the present invention, the YH8002-S2 type recycle pump frequency conversion intelligent controller that this frequency variator preferentially selects Beijing Yu Henghengye electric autocontrol Science and Technology Ltd. to produce realizes.This pressure transducer is then preferably the CHR-100 series pressure sensor that Chengdu Yong Hao electromechanical engineering Technology Co., Ltd. produces.The JCJ100ZHFK type that temperature transducer then preferentially adopts Beijing nine skill Development Co., Ltd of pure Rehabilitation to produce is lived and is determined flange-type temperature transducer to realize.Pressure regulator, duct thermostat then all select prior art to get final product reality.
As shown in Figure 2, this temperature signal modular converter then by transformer T, the change-over circuit be connected with the former limit of transformer T, and the output circuit be connected with transformer T secondary forms.
Described change-over circuit is by triode VT1, and triode VT2, conversion chip U, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, electric capacity C2, electric capacity C3, diode D1, reference diode D2, diode D3 and RC eliminator form.
Wherein, this RC eliminator comprises electric capacity C1 and resistance R1.Described electric capacity C1 and resistance R1 is in parallel, and an one common end is connected with the TC pin of conversion chip U, forms the input end of this temperature signal modular converter while its another common end is then connected with the negative pole of electric capacity C2 together with the base stage of triode VT1.
During connection, one end of this resistance R3 is connected with the Same Name of Ends on the former limit of transformer T, its the other end is ground connection after resistance R2 then, the N pole of diode D1 is connected with the EN/UVLO pin of conversion chip U, its P pole is then connected with the collector electrode of triode VT1, one end of resistance R5 is connected with the RFB pin of conversion chip U, its the other end is then connected with the non-same polarity on the former limit of transformer T, the P pole of reference diode D2 is connected with the Same Name of Ends on the former limit of transformer T, its N pole is then connected with the non-same polarity on the former limit of transformer T after diode D3, one end of resistance R6 is connected with the RREF pin of conversion chip U, its the other end ground connection, the positive pole of electric capacity C2 is connected with the VC pin of conversion chip U after resistance R4, its minus earth, the positive pole of electric capacity C3 is connected with the BIAS pin of conversion chip U, its negative pole is then connected with the negative pole of electric capacity C2.
The EN/UVLO pin of described conversion chip U is connected with the tie point of resistance R2 with resistance R3, its VIN pin connects 15V voltage while being then connected with the Same Name of Ends on the former limit of transformer T, its BIAS pin is then connected with the base stage of triode VT2, and its GND pin is then connected with the negative pole of electric capacity C3; The collector electrode of described triode VT2 is connected with the non-same polarity on the former limit of transformer T, its grounded-emitter connection.In order to better implement the present invention, this conversion chip U is preferably LT3512 integrated chip to realize.
Described output circuit comprises reference diode D4 and electric capacity C4; The output terminal that the P pole of described reference diode D4 is connected with the non-same polarity of transformer T secondary, its N pole then forms this temperature signal modular converter together with the Same Name of Ends of transformer T secondary, the positive pole of described electric capacity C4 is connected with the N pole of reference diode D4, its negative pole is then connected with the Same Name of Ends of transformer T secondary.
As shown in Figure 3, it is by transformer T1, triode VT3, triode VT4, resistance R7, resistance R8, resistance R9, electric capacity C5, electric capacity C6, electric capacity C7 for the structure of this frequency stabilization vibrator circuit, and electric capacity C8 and oscillator X forms.
During connection, the positive pole of electric capacity C7 is connected with the emitter of triode VT3, its negative pole is then connected with the Same Name of Ends on the former limit of transformer T1 after resistance R7 through resistance R8 in turn, the positive pole of electric capacity C5 is connected with the Same Name of Ends on the former limit of transformer T1, its minus earth, between the Same Name of Ends that electric capacity C6 is then serially connected in the former limit of transformer T1 and non-same polarity, the input end of oscillator X is connected with the collector electrode of triode VT5, its output terminal is then connected with the non-same polarity on the former limit of transformer T1, the positive pole of electric capacity C11 is connected with the emitter of triode VT4, its negative pole is then connected with the negative pole of electric capacity C7, one end of resistance R9 is connected with the emitter of triode VT4, ground connection while its other end is then connected with the negative pole of electric capacity C8.The base stage of described triode VT3 is connected with the tie point of resistance R8 with resistance R7, and its emitter is then connected with the base stage of triode VT4.The non-same polarity on the described former limit of transformer T1 is connected with the collector electrode of triode VT4, and its Same Name of Ends then connects 15V voltage.The Same Name of Ends ground connection of described transformer T1 secondary, its non-same polarity then forms the output terminal of this frequency stabilization vibrator circuit.Wherein, resistance R7, resistance R8 and resistance R9 is biasing resistor, it can make frequency stabilization vibrator circuit have good bias condition, therefore the oscillation frequency stability that exports of frequency stabilization vibrator circuit is very high, when oscillator X starting of oscillation, oscillator signal amplifies backward temperature signal modular converter through transformer T1 provides drive singal.
As mentioned above, just well the present invention can be implemented.
Claims (5)
1. based on the circulating water pump constant-temperature automatic control system of frequency stabilization vibrator circuit, by circulating water pump, the frequency variator be connected with circulating water pump control end, the pressure regulator be connected with frequency variator and duct thermostat, be arranged on the pressure transducer of circulating water pump water outlet, be arranged on the temperature transducer of circulating water pump water intake, and the temperature signal modular converter be connected with temperature transducer forms, described pressure transducer is also connected with pressure regulator, and temperature signal modular converter is then connected with duct thermostat, it is characterized in that, be also provided with the frequency stabilization vibrator circuit be connected with temperature signal modular converter, described frequency stabilization vibrator circuit is by transformer T1, triode VT3, triode VT4, positive pole is connected with the emitter of triode VT3, negative pole is then in turn through electric capacity C7 that resistance R8 is connected with the Same Name of Ends on the former limit of transformer T1 after resistance R7, positive pole is connected with the Same Name of Ends on the former limit of transformer T1, the electric capacity C5 of minus earth, be serially connected in the electric capacity C6 between the Same Name of Ends on the former limit of transformer T1 and non-same polarity, input end is connected with the collector electrode of triode VT3, the oscillator X that output terminal is then connected with the non-same polarity on the former limit of transformer T1, positive pole is connected with the emitter of triode VT4, the electric capacity C8 that negative pole is then connected with the negative pole of electric capacity C7, and one end is connected with the emitter of triode VT4, while the other end is then connected with the negative pole of electric capacity C8, the resistance R9 of ground connection forms, the base stage of described triode VT3 is connected with the tie point of resistance R8 with resistance R7, and its emitter is then connected with the base stage of triode VT4, the non-same polarity on the described former limit of transformer T1 is connected with the collector electrode of triode VT4, and its Same Name of Ends then connects 15V voltage, the Same Name of Ends ground connection of described transformer T1 secondary, its non-same polarity then forms the output terminal of this frequency stabilization vibrator circuit, described temperature signal modular converter then by transformer T, the change-over circuit be connected with the former limit of transformer T, and the output circuit be connected with transformer T secondary forms.
2. the circulating water pump constant-temperature automatic control system based on frequency stabilization vibrator circuit according to claim 1, it is characterized in that: described change-over circuit is by triode VT1, triode VT2, conversion chip U, one end is connected with the Same Name of Ends on the former limit of transformer T, the other end is the resistance R3 of ground connection after resistance R2 then, N pole is connected with the EN/UVLO pin of conversion chip U, the diode D1 that P pole is then connected with the collector electrode of triode VT1, one end is connected with the RFB pin of conversion chip U, the resistance R5 that the other end is then connected with the non-same polarity on the former limit of transformer T, P pole is connected with the Same Name of Ends on the former limit of transformer T, the reference diode D2 that N pole is then connected with the non-same polarity on the former limit of transformer T after diode D3, one end is connected with the RREF pin of conversion chip U, the resistance R6 of the other end ground connection, the RC eliminator be connected with the TC pin of conversion chip U, positive pole is connected with the VC pin of conversion chip U after resistance R4, the electric capacity C2 of minus earth, and positive pole is connected with the BIAS pin of conversion chip U, the electric capacity C3 that negative pole is then connected with the negative pole of electric capacity C2 forms, the EN/UVLO pin of described conversion chip U is connected with the tie point of resistance R2 with resistance R3, its VIN pin connects 15V voltage while being then connected with the Same Name of Ends on the former limit of transformer T, its BIAS pin is then connected with the base stage of triode VT2, and its GND pin is then connected with the negative pole of electric capacity C3, the collector electrode of described triode VT2 is connected with the non-same polarity on the former limit of transformer T, its grounded-emitter connection.
3. the circulating water pump constant-temperature automatic control system based on frequency stabilization vibrator circuit according to claim 2, is characterized in that: described RC eliminator comprises electric capacity C1 and resistance R1; Described electric capacity C1 and resistance R1 is in parallel, and an one common end is connected with the TC pin of conversion chip U, forms the input end of this temperature signal modular converter while its another common end is then connected with the negative pole of electric capacity C2 together with the base stage of triode VT1.
4. the circulating water pump constant-temperature automatic control system based on frequency stabilization vibrator circuit according to claim 3, is characterized in that: described output circuit comprises reference diode D4 and electric capacity C4; The output terminal that the P pole of described reference diode D4 is connected with the non-same polarity of transformer T secondary, its N pole then forms this temperature signal modular converter together with the Same Name of Ends of transformer T secondary, the positive pole of described electric capacity C4 is connected with the N pole of reference diode D4, its negative pole is then connected with the Same Name of Ends of transformer T secondary.
5. the circulating water pump constant-temperature automatic control system based on frequency stabilization vibrator circuit according to claim 4, is characterized in that: described conversion chip U is LT3512 integrated chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510556477.2A CN105201803B (en) | 2015-09-02 | 2015-09-02 | Water circulating pump constant-temperature automatic control system based on frequency stabilization oscillating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510556477.2A CN105201803B (en) | 2015-09-02 | 2015-09-02 | Water circulating pump constant-temperature automatic control system based on frequency stabilization oscillating circuit |
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| CN105201803A true CN105201803A (en) | 2015-12-30 |
| CN105201803B CN105201803B (en) | 2017-03-29 |
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| CN201510556477.2A Expired - Fee Related CN105201803B (en) | 2015-09-02 | 2015-09-02 | Water circulating pump constant-temperature automatic control system based on frequency stabilization oscillating circuit |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56132870A (en) * | 1980-03-24 | 1981-10-17 | Nec Home Electronics Ltd | Horizontal automatic frequency control circuit |
| CN1705222A (en) * | 2004-06-03 | 2005-12-07 | 电子科技大学 | Temperature-compensating method for quartz crystal oscillator |
| US20080181790A1 (en) * | 2001-11-26 | 2008-07-31 | Meza Humberto V | Pump and pump control circuit apparatus and method |
| CN201363264Y (en) * | 2009-03-18 | 2009-12-16 | 纪国忠 | Constant-temperature automatic control system for circulating water pump |
| CN202579138U (en) * | 2012-05-08 | 2012-12-05 | 浙江恒逸高新材料有限公司 | Variable frequency power-saving control system of circulating pump |
| CN104506156A (en) * | 2014-11-18 | 2015-04-08 | 成都措普科技有限公司 | Low distortion factor oscillator system |
-
2015
- 2015-09-02 CN CN201510556477.2A patent/CN105201803B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56132870A (en) * | 1980-03-24 | 1981-10-17 | Nec Home Electronics Ltd | Horizontal automatic frequency control circuit |
| US20080181790A1 (en) * | 2001-11-26 | 2008-07-31 | Meza Humberto V | Pump and pump control circuit apparatus and method |
| CN1705222A (en) * | 2004-06-03 | 2005-12-07 | 电子科技大学 | Temperature-compensating method for quartz crystal oscillator |
| CN201363264Y (en) * | 2009-03-18 | 2009-12-16 | 纪国忠 | Constant-temperature automatic control system for circulating water pump |
| CN202579138U (en) * | 2012-05-08 | 2012-12-05 | 浙江恒逸高新材料有限公司 | Variable frequency power-saving control system of circulating pump |
| CN104506156A (en) * | 2014-11-18 | 2015-04-08 | 成都措普科技有限公司 | Low distortion factor oscillator system |
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| CN105201803B (en) | 2017-03-29 |
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