CN105201803B - Water circulating pump constant-temperature automatic control system based on frequency stabilization oscillating circuit - Google Patents

Water circulating pump constant-temperature automatic control system based on frequency stabilization oscillating circuit Download PDF

Info

Publication number
CN105201803B
CN105201803B CN201510556477.2A CN201510556477A CN105201803B CN 105201803 B CN105201803 B CN 105201803B CN 201510556477 A CN201510556477 A CN 201510556477A CN 105201803 B CN105201803 B CN 105201803B
Authority
CN
China
Prior art keywords
connected
transformator
electric capacity
circulating pump
water circulating
Prior art date
Application number
CN201510556477.2A
Other languages
Chinese (zh)
Other versions
CN105201803A (en
Inventor
刘霖
罗颖
刘永
邱会中
杨先明
张晓奕
Original Assignee
宁波摩米创新工场电子科技有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 宁波摩米创新工场电子科技有限公司 filed Critical 宁波摩米创新工场电子科技有限公司
Priority to CN201510556477.2A priority Critical patent/CN105201803B/en
Publication of CN105201803A publication Critical patent/CN105201803A/en
Application granted granted Critical
Publication of CN105201803B publication Critical patent/CN105201803B/en

Links

Abstract

The invention discloses the water circulating pump constant-temperature automatic control system based on frequency stabilization oscillating circuit, by water circulating pump, the converter being connected with water circulating pump control end, the pressure regulator being connected with converter and thermoregulator, it is arranged on the pressure transducer of water circulating pump outlet, it is arranged on the temperature sensor of water circulating pump water inlet, and the temperature signal modular converter composition being connected with temperature sensor;The pressure transducer is also connected with pressure regulator, and temperature signal modular converter is then connected with thermoregulator;Characterized in that, being additionally provided with the frequency stabilization oscillating circuit being connected with temperature signal modular converter;The present invention preferably can be controlled to temperature signal modular converter by frequency stabilization oscillating circuit, so that the conversion effect of temperature signal is more preferably, it is in hgher efficiency.

Description

Water circulating pump constant-temperature automatic control system based on frequency stabilization oscillating circuit

Technical field

The present invention relates to automation field, specifically refers to be controlled based on the water circulating pump constant temperature of frequency stabilization oscillating circuit automatically System processed.

Background technology

At present the flow of Circulating Pump System is by valve with pressure reduction and bypasses regulation to complete, therefore, inevitably There is larger dam loss and big flow, high pressure, the phenomenon of Low Temperature Difference, not only waste electric energy in a large number, and can not be according to temperature The change of degree automatically adjusts the flow of water pump, and this results in circulating water temperature and fully can not radiate in user side, flows back to thermal source again, Unnecessary waste is caused, meanwhile, cannot also make recirculated water keep a stationary temperature value, therefore require the occasion of constant temperature Then and do not applied to the method.How to solve the above problems, be the task of top priority of current people.

The content of the invention

It is an object of the invention to the defect for overcoming traditional Circulating Pump System be controlled to temperature automatically, carries For a kind of water circulating pump constant-temperature automatic control system based on frequency stabilization oscillating circuit.

The purpose of the present invention is achieved through the following technical solutions:Water circulating pump based on frequency stabilization oscillating circuit is automatic with constant temperature Control system, by water circulating pump, the converter being connected with water circulating pump control end, the pressure regulator being connected with converter And thermoregulator, the pressure transducer of water circulating pump outlet is arranged on, the temperature sensing of water circulating pump water inlet is arranged on Device, the temperature signal modular converter being connected with temperature sensor, and the frequency stabilization being connected with temperature signal modular converter are shaken Swing circuit composition;The pressure transducer is also connected with pressure regulator, temperature signal modular converter then with thermoregulator It is connected.

Described frequency stabilization oscillating circuit is sent out with audion VT3's by transformator T1, audion VT3, audion VT4, positive pole Emitter-base bandgap grading is connected, the electric capacity C7 that negative pole is then sequentially connected with the Same Name of Ends of transformator T1 former limits Jing after resistance R8 and resistance R7, Positive pole is connected with the Same Name of Ends of transformator T1 former limits, the electric capacity C5 of minus earth, is serially connected in the Same Name of Ends of transformator T1 former limits Electric capacity C6 and non-same polarity between, input is connected with the colelctor electrode of audion VT3, outfan then with transformator T1 former limits The agitator X that is connected of non-same polarity, positive pole is connected with the emitter stage of audion VT4, negative pole negative pole then with electric capacity C7 The electric capacity C8 being connected, and one end is connected with the emitter stage of audion VT4, the other end is then connected with the negative pole of electric capacity C8 While be grounded resistance R9 composition;The base stage of the audion VT3 is connected with the junction point of resistance R7 and resistance R8, its Emitter-base bandgap grading is then connected with the base stage of audion VT4;The non-same polarity of the transformator T1 former limits and the colelctor electrode phase of audion VT4 Connection, its Same Name of Ends then connect 15V voltages;The Same Name of Ends ground connection of the transformator T1 secondary, its non-same polarity then form the frequency stabilization The outfan of oscillating circuit.

Further, the temperature signal modular converter is then by transformator T, the conversion electricity being connected with transformator T former limits Road, and the output circuit composition being connected with transformator T secondary.

, by audion VT1, audion VT2, conversion chip U, one end are of the same name with transformator T former limits for described change-over circuit End is connected, the resistance R3 that the other end is then grounded Jing after resistance R2, and N poles are connected with the EN/UVLO pins of conversion chip U, P poles The diode D1 being then connected with the colelctor electrode of audion VT1, one end is connected with the RFB pins of conversion chip U, the other end then The resistance R5 being connected with the non-same polarity of transformator T former limits, P poles are connected with the Same Name of Ends of transformator T former limits, N poles then Jing The RREF of the Zener diode D2 being connected with the non-same polarity of transformator T former limits after diode D3, one end and conversion chip U is managed Foot is connected, the resistance R6 of other end ground connection, the RC filter circuits being connected with the TC pins of conversion chip U, positive pole Jing resistance Be connected with the VC pins of conversion chip U after R4, the electric capacity C2 of minus earth, and BIAS pins of positive pole and conversion chip U It is connected, the electric capacity C3 that negative pole is then connected with the negative pole of electric capacity C2 is constituted;The EN/UVLO pins of the conversion chip U and electricity Resistance R3 is connected with the junction point of resistance R2, and its VIN pin meets 15V while being then connected with the Same Name of Ends of transformator T former limits Voltage, its BIAS pin are then connected with the base stage of audion VT2, and its GND pin is then connected with the negative pole of electric capacity C3;It is described The colelctor electrode of audion VT2 is connected with the non-same polarity of transformator T former limits, its grounded emitter.

The RC filter circuits include electric capacity C1 and resistance R1;The electric capacity C1 and resistance R1 are in parallel, and one is common End is connected with the TC pins of conversion chip U, with three poles while its another common end is then connected with the negative pole of electric capacity C2 The base stage of pipe VT1 forms the input of the temperature signal modular converter together.

The output circuit includes Zener diode D4 and electric capacity C4;The P poles of the Zener diode D4 and transformator T pairs The non-same polarity on side is connected, its N pole then forms the defeated of the temperature signal modular converter together with the Same Name of Ends of transformator T secondary Go out end, the positive pole of the electric capacity C4 is connected with the N poles of Zener diode D4, its negative pole Same Name of Ends then with transformator T secondary It is connected.

Described conversion chip U is LT3512 integrated chips.

The present invention compared with the prior art, with advantages below and beneficial effect:

(1) present invention can be adjusted to the circulating water temperature in water circulating pump automatically, maintain recirculated water constant Temperature, so can sufficiently utilize heat energy, it is to avoid thermal waste.

(2) present invention can be adjusted to the circulating water pressure in water circulating pump automatically, make water circulating pump in optimal Working condition, extend water circulating pump working life.

(3) present invention preferably can be controlled to temperature signal modular converter by frequency stabilization oscillating circuit, so that The conversion effect of temperature signal is more preferably, in hgher efficiency.

Description of the drawings

Fig. 1 is the overall structure block diagram of the present invention.

Fig. 2 is the temperature signal modular converter circuit structure diagram of the present invention.

Fig. 3 is the structure chart of the frequency stabilization oscillating circuit of the present invention.

Specific embodiment

The present invention is described in further detail with reference to embodiment, but embodiments of the present invention are not limited to This.

Embodiment

As shown in figure 1, the water circulating pump constant-temperature automatic control system based on frequency stabilization oscillating circuit of the present invention, by circulating Water pump, the converter being connected with water circulating pump control end, the pressure regulator being connected with converter and thermoregulator, if The pressure transducer in water circulating pump outlet is put, the temperature sensor of water circulating pump water inlet is arranged on, with temperature sensor The temperature signal modular converter being connected, and the frequency stabilization oscillating circuit composition being connected with temperature signal modular converter;It is described Pressure transducer is also connected with pressure regulator, and temperature signal modular converter is then connected with thermoregulator.

Wherein, the pressure transducer is used for the pressure signal for gathering recirculated water in water circulating pump, and is transferred to pressure regulation Device, and pressure regulator can send corresponding water circulating pump control signal to converter according to pressure signal.Temperature sensor For gathering the temperature signal of recirculated water in water circulating pump, and temperature signal modular converter is transferred to, the temperature signal modulus of conversion Block can be converted to the digital signal that system can be recognized temperature signal, and frequency stabilization oscillating circuit is then for temperature signal turn Mold changing block is controlled.The thermoregulator internal preset has the temperature of recirculated water, and which can be real-time the recirculated water for sensing Temperature is compared with preset temperature, and sends water circulating pump control signal to converter according to comparative result.The converter is then Corresponding frequency can be exported according to the water circulating pump control signal sent by pressure regulator and thermoregulator, to recirculated water The rotating speed and flow of pump is controlled, and then makes the water temperature of recirculated water identical with default water temperature, and keeps constant.

In order to preferably implement the present invention, the converter preferentially selects Beijing Yu Henghengye electric autocontrols Science and Technology Ltd. The YH8002-S2 types circulating pump frequency conversion intelligent controller of production is realizing.The pressure transducer is then preferably Chengdu great electromechanics forever The CHR-100 series pressure sensors of engineering technology company limited production.And temperature sensor is then preferentially pure strong using Beijing nine The JCJ100ZHFK types of development in science and technology company limited production are lived and determine flange form temperature sensor to realize.And pressure regulator, temperature Degree actuator then can reality from prior art.

As shown in Fig. 2 the temperature signal modular converter is then by transformator T, the conversion electricity being connected with transformator T former limits Road, and the output circuit composition being connected with transformator T secondary.

Described change-over circuit is by audion VT1, audion VT2, conversion chip U, resistance R2, resistance R3, resistance R4, electricity Resistance R5, resistance R6, electric capacity C2, electric capacity C3, diode D1, Zener diode D2, diode D3 and RC filter circuit composition.

Wherein, the RC filter circuits include electric capacity C1 and resistance R1.The electric capacity C1 and resistance R1 are in parallel, and one is altogether It is connected with the TC pins of conversion chip U with end, with three while its another common end is then connected with the negative pole of electric capacity C2 The base stage of pole pipe VT1 forms the input of the temperature signal modular converter together.

During connection, one end of resistance R3 is connected with the Same Name of Ends of transformator T former limits, its other end is then Jing after resistance R2 Ground connection, the N poles of diode D1 are connected with the EN/UVLO pins of conversion chip U, its P pole colelctor electrode phase then with audion VT1 Connection, one end of resistance R5 is connected with the RFB pins of conversion chip U, its other end non-same polarity then with transformator T former limits Be connected, the P poles of Zener diode D2 are connected with the Same Name of Ends of transformator T former limits, its N pole then Jing after diode D3 with transformation The non-same polarity of device T former limits is connected, and one end of resistance R6 is connected with the RREF pins of conversion chip U, its other end is grounded, The positive pole of electric capacity C2 is connected with the VC pins of conversion chip U Jing after resistance R4, its minus earth, positive pole and the conversion of electric capacity C3 The BIAS pins of chip U are connected, its negative pole is then connected with the negative pole of electric capacity C2.

The EN/UVLO pins of the conversion chip U are connected with the junction point of resistance R3 and resistance R2, and its VIN pin is then 15V voltages are connect while being connected with the Same Name of Ends of transformator T former limits, its BIAS pin is then connected with the base stage of audion VT2 Connect, its GND pin is then connected with the negative pole of electric capacity C3;The colelctor electrode of the audion VT2 is non-of the same name with transformator T former limits End is connected, its grounded emitter.In order to preferably implement the present invention, conversion chip U is preferably LT3512 integrated chips to be come Realize.

The output circuit includes Zener diode D4 and electric capacity C4;The P poles of the Zener diode D4 and transformator T pairs The non-same polarity on side is connected, its N pole then forms the defeated of the temperature signal modular converter together with the Same Name of Ends of transformator T secondary Go out end, the positive pole of the electric capacity C4 is connected with the N poles of Zener diode D4, its negative pole Same Name of Ends then with transformator T secondary It is connected.

The structure of the frequency stabilization oscillating circuit is as shown in figure 3, which is by transformator T1, audion VT3, audion VT4, resistance R7, resistance R8, resistance R9, electric capacity C5, electric capacity C6, electric capacity C7, electric capacity C8 and agitator X are constituted.

During connection, the positive pole of electric capacity C7 is connected with the emitter stage of audion VT3, its negative pole then sequentially Jing resistance R8 and electricity It is connected with the Same Name of Ends of transformator T1 former limits after resistance R7, the positive pole of electric capacity C5 is connected with the Same Name of Ends of transformator T1 former limits, Its minus earth, electric capacity C6 are then serially connected between the Same Name of Ends and non-same polarity of transformator T1 former limits, the input of agitator X with The colelctor electrode of audion VT3 is connected, its outfan is then connected with the non-same polarity of transformator T1 former limits, the positive pole of electric capacity C8 It is connected with the emitter stage of audion VT4, its negative pole is then connected with the negative pole of electric capacity C7, one end of resistance R9 and audion It is grounded while the emitter stage of VT4 is connected, its other end is then connected with the negative pole of electric capacity C8.The base of the audion VT3 Pole is connected with the junction point of resistance R7 and resistance R8, and its emitter stage is then connected with the base stage of audion VT4.The transformator The non-same polarity of T1 former limits is connected with the colelctor electrode of audion VT4, and its Same Name of Ends then connects 15V voltages.The transformator T1 pairs The Same Name of Ends ground connection on side, its non-same polarity then form the outfan of the frequency stabilization oscillating circuit.Wherein, resistance R7, resistance R8 and Resistance R9 is biasing resistor, and which can make frequency stabilization oscillating circuit possess good bias condition, therefore frequency stabilization oscillating circuit institute is defeated The frequency of oscillation stability for going out is very high, and when agitator X starting of oscillations, oscillator signal Jing transformators T1 amplifies backward temperature signal conversion Module provides drive signal.

As described above, the present invention just can be implemented well.

Claims (5)

1. the water circulating pump constant-temperature automatic control system based on frequency stabilization oscillating circuit, including water circulating pump, with water circulating pump control The converter that end processed is connected, the pressure regulator being connected with converter and thermoregulator, are arranged on water circulating pump water outlet The pressure transducer of mouth, is arranged on the temperature sensor of water circulating pump water inlet, and the temperature being connected with temperature sensor Signal conversion module;The pressure transducer is also connected with pressure regulator, temperature signal modular converter then with temperature adjustment Device is connected;Characterized in that, being additionally provided with the frequency stabilization oscillating circuit being connected with temperature signal modular converter;Described frequency stabilization By transformator T1, audion VT3, audion VT4, positive pole is connected oscillating circuit with the emitter stage of audion VT3, negative pole is then suitable The secondary electric capacity C7 being connected with the Same Name of Ends of transformator T1 former limits Jing after resistance R8 and resistance R7, positive pole and transformator T1 former limits Same Name of Ends is connected, the electric capacity C5 of minus earth, the electric capacity being serially connected between the Same Name of Ends and non-same polarity of transformator T1 former limits C6, input is connected with the colelctor electrode of audion VT3, outfan then with shaking that the non-same polarity of transformator T1 former limits is connected Device X is swung, the electric capacity C8 that positive pole is connected with the emitter stage of audion VT4, negative pole is then connected with the negative pole of electric capacity C7, Yi Jiyi End is connected with the emitter stage of audion VT4, the resistance R9 groups that the other end is grounded while being then connected with the negative pole of electric capacity C8 Into;The base stage of the audion VT3 is connected with the junction point of resistance R7 and resistance R8, and its emitter stage is then with audion VT4's Base stage is connected;The non-same polarity of the transformator T1 former limits is connected with the colelctor electrode of audion VT4, and its Same Name of Ends then connects 15V voltages;The Same Name of Ends ground connection of the transformator T1 secondary, its non-same polarity then form the outfan of the frequency stabilization oscillating circuit; The temperature signal modular converter then by transformator T, the change-over circuit being connected with transformator T former limits, and with transformator T pairs While the output circuit composition being connected.
2. the water circulating pump constant-temperature automatic control system based on frequency stabilization oscillating circuit according to claim 1, its feature It is:Same Name of Ends of the described change-over circuit by audion VT1, audion VT2, conversion chip U, one end and transformator T former limits Be connected, the resistance R3 that the other end is then grounded Jing after resistance R2, N poles are connected with the EN/UVLO pins of conversion chip U, P poles then The diode D1 being connected with the colelctor electrode of audion VT1, one end is connected with the RFB pins of conversion chip U, the other end then with The resistance R5 that the non-same polarity of transformator T former limits is connected, P poles are connected with the Same Name of Ends of transformator T former limits, N poles then Jing bis- The RREF pins of the Zener diode D2 being connected with the non-same polarity of transformator T former limits after pole pipe D3, one end and conversion chip U Be connected, the other end ground connection resistance R6, the RC filter circuits being connected with the TC pins of conversion chip U, positive pole Jing resistance R4 Be connected with the VC pins of conversion chip U afterwards, the electric capacity C2 of minus earth, and BIAS pin phases of positive pole and conversion chip U The electric capacity C3 compositions that connection, negative pole are then connected with the negative pole of electric capacity C2;The EN/UVLO pins and resistance of the conversion chip U R3 is connected with the junction point of resistance R2, and it is electric that its VIN pin meets 15V while being then connected with the Same Name of Ends of transformator T former limits Pressure, its BIAS pin are then connected with the base stage of audion VT2, and its GND pin is then connected with the negative pole of electric capacity C3;Described three The colelctor electrode of pole pipe VT2 is connected with the non-same polarity of transformator T former limits, its grounded emitter.
3. the water circulating pump constant-temperature automatic control system based on frequency stabilization oscillating circuit according to claim 2, its feature It is:The RC filter circuits include electric capacity C1 and resistance R1;The electric capacity C1 and resistance R1 are in parallel, the common end of one with The TC pins of conversion chip U are connected, with audion VT1 while its another common end is then connected with the negative pole of electric capacity C2 Base stage form the input of the temperature signal modular converter together.
4. the water circulating pump constant-temperature automatic control system based on frequency stabilization oscillating circuit according to claim 3, its feature It is:The output circuit includes Zener diode D4 and electric capacity C4;The P poles of the Zener diode D4 and transformator T secondary Non-same polarity be connected, its N pole then forms the output of the temperature signal modular converter together with the Same Name of Ends of transformator T secondary End, the positive pole of the electric capacity C4 is connected with the N poles of Zener diode D4, its negative pole Same Name of Ends phase then with transformator T secondary Connection.
5. the water circulating pump constant-temperature automatic control system based on frequency stabilization oscillating circuit according to claim 4, its feature It is:Described conversion chip U is LT3512 integrated chips.
CN201510556477.2A 2015-09-02 2015-09-02 Water circulating pump constant-temperature automatic control system based on frequency stabilization oscillating circuit CN105201803B (en)

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

Publications (2)

Publication Number Publication Date
CN105201803A CN105201803A (en) 2015-12-30
CN105201803B true CN105201803B (en) 2017-03-29

Family

ID=54949683

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510556477.2A CN105201803B (en) 2015-09-02 2015-09-02 Water circulating pump constant-temperature automatic control system based on frequency stabilization oscillating circuit

Country Status (1)

Country Link
CN (1) CN105201803B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Family Cites Families (2)

* Cited by examiner, † Cited by third party
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
US8337166B2 (en) * 2001-11-26 2012-12-25 Shurflo, Llc Pump and pump control circuit apparatus and method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Also Published As

Publication number Publication date
CN105201803A (en) 2015-12-30

Similar Documents

Publication Publication Date Title
CN103491682B (en) Linear switching constant-current LED drive circuit for control over peak current
CN101489336B (en) Constant current source control circuit
CN103607130B (en) Three-level pulse control based on extension of and apparatus dspace fpga
CN105813263B (en) Switching Power Supply and television set
CN102290705A (en) High-reliability constant voltage mode semiconductor laser driver with continuously adjustable output light power
CN103648202B (en) Active power factor correction control circuit, chip and LED (Light Emitting Diode) drive circuit
CN105390112B (en) Thin-film transistor gate voltage supply circuit
CN102904444B (en) DC/DC (direct-current/direct-current) conversion and control system based on proton exchange membrane fuel cell
CN203560130U (en) Control circuit for controlling stepless speed regulation of fan in power supply device
CN105188232B (en) Constant current driver circuit for LED, light adjusting circuit and its control method
CN103687163B (en) Light emitting diode drive device and How It Works thereof
CN201182026Y (en) Driving power supply device of LED lamp group
CN100417002C (en) Drive device of fan moter
CN104638970B (en) Single-phase high frequency inverter based on SCC LCL T resonant networks
CN105873286A (en) Energy-saving power circuit for constant-current drive type cold light LED
CN102672310A (en) Parallel type high-power impulse MIG (metal inert gas) welding inversion power supply system based on DSP (digital signal processor)
CN202008814U (en) Driving circuit and liquid crystal television
CN104470096B (en) LED driving circuit
CN105574285B (en) The loss and junction temperature analogue system of power module
CN104023455B (en) A kind of constant current driver circuit for LED based on BJT switching tube
CN104993698B (en) DC DC converters with constant current output defencive function
CN203911762U (en) LLC resonance converting device
CN104467373B (en) LED drive circuit and its switch power controller
CN204597786U (en) Variable frequency power supply based on IGBT
CN201426198Y (en) LED general drive circuit

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
GR01 Patent grant