CN101893228B - Circuit of intelligent power saving device for heating boiler system - Google Patents
Circuit of intelligent power saving device for heating boiler system Download PDFInfo
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- CN101893228B CN101893228B CN2009101428720A CN200910142872A CN101893228B CN 101893228 B CN101893228 B CN 101893228B CN 2009101428720 A CN2009101428720 A CN 2009101428720A CN 200910142872 A CN200910142872 A CN 200910142872A CN 101893228 B CN101893228 B CN 101893228B
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- heating boiler
- boiler system
- power saving
- intelligent power
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Abstract
The invention relates to a circuit of an intelligent power saving device for a heating boiler system, comprising two intelligent power saving control circuits, an air blower, a draught fan, two main loop circuits and a control circuit, wherein two intelligent power saving control circuits are composed of two micro-differential pressure transmitters, two PID controllers, two high-performance transducers and two motor-drive systems which are connected through the circuit; and the two main loop circuits are composed of a breaker, a combination switch, two intermediate relays, three contactors and the high-performance transducers which are connected through the circuit and respectively achieve the control and conversion of intelligent power saving, bypass and stopping. The circuit of the intelligent power saving device for the heating boiler system provided by the invention can respectively ensure the control precision of the air blower and the draught fan in the heating boiler system, and regulate the speed of the motor at random according to the production requirements to cause the output air quantity to be subjected to stepless adjustment, thereby saving electricity and reducing consumption as well as improving work efficiency of production. The design and production processing of the circuit is simple, and the operation of the device is convenient.
Description
Technical field
The present invention relates to a kind of by two elementary errors transmitters, two PID controllers, two high-performance transducers and two circuit of intelligent power saving device for heating boiler system that motor drive system is formed.
Background technology
In advanced power-saving technique of the heating boiler system of applying at present and equipment, there is a grade reduction of speed economize on electricity product in the heating boiler system economize on electricity, to occupy suitable proportion, and brought into play economize on electricity effect preferably.But the simple grade reduction of speed economize on electricity product that has just has the constant speed on rank, can't satisfy the requirement that heating boiler system improves control accuracy and intelligent energy-saving.Owing to there is such shortcoming, make advanced power-saving technique and equipment receive considerable restraint in the application of heating boiler system, its source electricity-saving function is not brought into play as yet fully.
Summary of the invention
Purpose of design of the present invention provide a kind of simple in structure, control accuracy is high, the circuit of intelligent power saving device for heating boiler system of investment economy.Solve present power-saving technique and equipment and can't satisfy shortcoming and the problem that heating boiler system improves control accuracy and intelligent energy-saving requirement, guarantee that heating boiler system satisfying the demand, under the prerequisite of reliable, safe operation, amplitude peak saves energy.
For reaching above-mentioned purpose; Circuit of intelligent power saving device for heating boiler system provided by the invention; The breaker that two groups of two intelligent energy-saving control circuits that comprise that two elementary errors transmitters connecting through circuit, two PID controllers, two high-performance transducers and two motor drive systems form respectively and air blast, air-introduced machines are connected through circuit, stacked switch, two auxiliary reclays, three contactors and and two main loop circuits of air blast, air-introduced machine and the control loop circuit of high-performance transducer composition, realize heating boiler system air blast, air-introduced machine intelligent energy-saving, bypass, the control that stops three kinds of states and conversion respectively.
Elementary errors transmitter of described intelligent energy-saving control circuit is installed on the jet chimney, required steam pressure standard 4～20mA or 0～10V signal of telecommunication is sent into the feedback receive path of the built-in PID controller of heating boiler system electricity saver.PID controller of described intelligent energy-saving control circuit, reception compare with setting steam pressure value after handling required steam pressure standard 4～20mA or 0～10V signal of telecommunication, through PID controller generation computing signal, from motion tracking jet chimney upward pressure.High-performance transducer control and regulation blower motor soft start of described intelligent energy-saving control circuit and running speed; Blower motor speed is changed along with the variation of steam pressure on the jet chimney; Basicly stable in setting value, thus reach the purpose of intelligent energy-saving.
A negative pressure elementary errors of described intelligent energy-saving control circuit transmitter is installed on the burner hearth, furnace pressure standard 4～20mA or 0～10V signal of telecommunication is sent into the feedback receive path of heating boiler system electricity saver internal PID controller.PID controller of described intelligent energy-saving control circuit, receive to handle furnace pressure standard 4～20mA or 0～10V signal of telecommunication after, and set the combustion chamber draft force rate, produce computing signal, the negative pressure on the motion tracking burner hearth through the PID controller.High-performance transducer control and regulation air inducing motor soft start of described intelligent energy-saving control circuit and running speed; The air inducing electromotor velocity is changed along with the variation of combustion chamber draft value; Basicly stable in setting value; Keep combustion chamber draft constant, guarantee the automatic operation of boiler combustion part, thereby reach the purpose of intelligent energy-saving.
Said blower motor main loop circuit breaker has the function of connecting and cutting off the electricity supply; The breaker that closes, power connection, this group circuit is charged, and power supply indicator lights; The shutdown device, dump.Described stacked switch has economize on electricity, bypass and stops (neutral gear) three gears, is used for this group circuit working state and switches.The requirement of said auxiliary reclay compounding practice, execution command is transmitted signal, changing the duty of circuit, thereby realizes the purpose of set control or protection.Said contactor utilizes main contacts to open and close circuit, carries out control instruction with auxiliary contact.
Said air inducing motor main loop circuit breaker has the function of connecting and cutting off the electricity supply; The breaker that closes, power connection, this group circuit is charged, and power supply indicator lights; The shutdown device, dump.Described stacked switch has economize on electricity, bypass and stops (neutral gear) three gears, is used for this group circuit working state and switches.The requirement of said auxiliary reclay compounding practice, execution command is transmitted signal, changing the duty of circuit, thereby realizes the purpose of set control or protection.Said contactor utilizes main contacts to open and close circuit, carries out control instruction with auxiliary contact.
The present invention also comprises two fuses; One of which is connected between blower motor main loop circuit breaker and the stacked switch, this fuse, and promptly insurance (silk) is as the error protection of lead and equipment; Prevent to transship and open circuit, it can satisfy the technical conditions relevant with electric equipment; It two is connected between air inducing motor main loop circuit breaker and the stacked switch, this fuse, i.e. and insurance (silk) prevents to transship and open circuit as error protection of lead and equipment, and it can satisfy the technical conditions relevant with electric equipment.
Circuit provided by the invention can guarantee to improve the heating boiler system control accuracy, can adjust electromotor velocity arbitrarily according to the production needs, makes air blast, air-introduced machine discharge quantity of fan step-less adjustment, economize on electricity consumption reduction and raising production work efficiency.This circuit design and manufacture craft are simple and direct, and equipment is easy to operate.
That circuit of intelligent power saving device for heating boiler system provided by the invention has is intelligent, the characteristics of novelty, advance, practicality reliability.
Description of drawings
Fig. 1 is intelligent power saving device for heating boiler system intelligent energy-saving control circuit figure provided by the invention;
Fig. 2 is two identical main loop circuits of intelligent power saving device for heating boiler system blower motor provided by the invention and air inducing motor and control loop circuit diagram.
The specific embodiment
Below in conjunction with Fig. 1, Fig. 2, specify a kind of preferred embodiments of the present invention:
What Fig. 1 described is intelligent power saving device for heating boiler system intelligent energy-saving control circuit provided by the invention, comprises two elementary errors transmitters, two PID controllers, two high-performance transducers of connecting through circuit.
The feedback receive path of heating boiler system electricity saver internal PID controller 1 sent into required steam pressure standard 4～20mA or 0～10V signal of telecommunication by a described elementary errors pressure transmitter 1 that is installed on the jet chimney.PID controller 1 of described intelligent energy-saving control circuit after required steam pressure standard 4～20mA or 0～10V signal of telecommunication are handled in reception, compares with setting steam pressure value, through PID controller 1 generation computing signal, from motion tracking jet chimney upward pressure.High-performance transducer of described intelligent energy-saving control circuit 1 control and regulation blower motor soft start and running speed; Blower motor speed is changed along with the variation of steam pressure on the jet chimney; Basicly stable in setting value, thus reach the purpose of intelligent energy-saving.
A described negative pressure elementary errors transmitter 2 that is installed on the burner hearth is sent into furnace pressure 4～20mA or 0～10V signal of telecommunication the feedback receive path of heating boiler system electricity saver internal PID controller 2.PID controller 2 of described intelligent energy-saving control circuit, receive to handle furnace pressure standard 4～20mA or 0～10V signal of telecommunication after, and set the combustion chamber draft force rate, produce computing signals, the negative pressure on the motion tracking burner hearth through PID controller 2.High-performance transducer of described intelligent energy-saving control circuit 2 control and regulation air inducing motors speed; The air inducing motor speed is changed along with the variation of combustion chamber draft value; Make the interior negative regulation of stove in setting value; Keep combustion chamber draft constant, guarantee the automatic operation of boiler combustion part, thereby reach the purpose of intelligent energy-saving.
What Fig. 2 described is one of two identical main loop circuits of intelligent power saving device for heating boiler system blower motor provided by the invention and air inducing motor and control loop circuit; Comprise a breaker connecting through circuit 1, change-over switch 2, two auxiliary reclays 301 and 302, three contactors 401,402 and 403, frequency converters 6; Realize economize on electricity, bypass and stop the conversion of three kinds of states.Also comprise a fuse 5, it is connected between breaker 1 and the change-over switch 2.
Said blower motor or air inducing motor electricity saving state are exactly: this loop main switch in the machine that closes, and promptly breaker 1, and entire circuit is charged, and power supply indicator is bright.When change-over switch 2 was pushed the economize on electricity gear, the control power supply made contactor 402 get electric adhesive through the normally closed contact of auxiliary reclay 301; In the time of contactor 402 adhesives, contactor 402 auxiliary normal opened contacts become closing point, and make contactor 403 get electric adhesive; In the time of contactor 403 adhesives; Contactor 403 auxiliary normal opened contacts become closing point, so auxiliary reclay 302 gets electric adhesive, make the normally closed contact of auxiliary reclay 302 open; Normal opened contact is closed; Through the normally closed contact and the closed normal opened contact turning circuit of auxiliary reclay 302 of auxiliary reclay 301, be that economize on electricity indicator lamp 701 lights, realize heating boiler system electricity saver electricity-saving function.
Said blower motor or the non-electricity-saving state of air inducing motor are exactly: when change-over switch 2 was pushed non-economize on electricity gear, the control power supply made contactor 401 adhesives through the normally closed contact of auxiliary reclay 302; In the time of contactor 401 adhesives, closed through the auxiliary normal opened contact of contactor 401, make auxiliary reclay 301 get electric adhesive; The normally closed contact of auxiliary reclay 301 is opened; Normal opened contact is closed, and at this moment power supply lights bypass indicator lamp 702 through the normally closed contact of contactor 402 and the closed normal opened contact turning circuit of contactor 401; Show that heating boiler system electricity saver circuit all breaks off, bypass functionality is realized.
Said blower motor or air inducing motor halted state are exactly: when stacked switch 2 was pushed between economize on electricity and the bypass neutral position, the heating boiler system electricity saver was in the halted state that economize on electricity and bypass functionality all do not move.
This circuit also can be used for the energy-conservation of function steam generator system feed pump, circulating pump.
Claims (1)
1. circuit of intelligent power saving device for heating boiler system; It is characterized in that, comprise first intelligent energy-saving control circuit of the first elementary errors transmitter, a PID controller, first high-performance transducer and first motor drive system composition that connect through circuit and the second intelligent energy-saving control circuit that the second elementary errors transmitter that is connected through circuit, the 2nd PID controller, second high-performance transducer and second motor drive system are formed; The said first intelligent energy-saving control circuit is used for guaranteeing to improve heating boiler system air blast control accuracy, according to production demand adjustment blower motor speed, makes the discharge quantity of fan step-less adjustment of said air blast; The said second intelligent energy-saving control circuit is used for guaranteeing to improve heating boiler system air-introduced machine control accuracy, according to production demand adjustment air inducing electromotor velocity, makes the discharge quantity of fan step-less adjustment of said air-introduced machine; Said first high-performance transducer is arranged on the said first intelligent energy-saving control circuit, and said second high-performance transducer is arranged on the said second intelligent energy-saving control circuit; Wherein
The first elementary errors transmitter is installed on the jet chimney, is used for the 4～20mA that collects or 0～10V steam pressure signal of telecommunication are sent into the feedback receive path of a said PID controller;
The one PID controller receives the said steam pressure signal of telecommunication, is used for the said steam pressure signal of telecommunication and setting steam pressure are compared, with the pressure on the said jet chimney of motion tracking;
First high-performance transducer is used to control to adjust blower motor soft start and running speed, and the running speed of blower motor is changed along with the variation of steam pressure on the jet chimney;
The second elementary errors transmitter is installed on the burner hearth, is used for the 4～20mA that collects or 0～10V furnace pressure signal of telecommunication are sent into the feedback receive path of said the 2nd PID controller;
The 2nd PID controller receives the said furnace pressure signal of telecommunication, be used for the said furnace pressure signal of telecommunication with set the combustion chamber draft force rate, with the negative pressure on the said burner hearth of motion tracking;
Second high-performance transducer is used to control to adjust air inducing motor soft start and running speed, and air inducing motor operation speed is changed along with the variation of combustion chamber draft value, is stabilized in setting value, keeps combustion chamber draft constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101428720A CN101893228B (en) | 2009-05-19 | 2009-05-19 | Circuit of intelligent power saving device for heating boiler system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101428720A CN101893228B (en) | 2009-05-19 | 2009-05-19 | Circuit of intelligent power saving device for heating boiler system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101893228A CN101893228A (en) | 2010-11-24 |
| CN101893228B true CN101893228B (en) | 2012-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101428720A Expired - Fee Related CN101893228B (en) | 2009-05-19 | 2009-05-19 | Circuit of intelligent power saving device for heating boiler system |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954012A (en) * | 2011-08-23 | 2013-03-06 | 苏州常乐泡塑有限公司 | Frequency conversion control circuit of forced and induced draft fan |
| CN103868096B (en) * | 2014-03-11 | 2016-06-08 | 莱芜钢铁集团有限公司 | A kind of hearth vacuum control method and Controlling System |
| CN105756982A (en) * | 2014-12-16 | 2016-07-13 | 天津宏顺源科技有限公司 | Frequency conversion control system of boiler |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2906705Y (en) * | 2006-01-16 | 2007-05-30 | 宫卓立 | Intelligent steam-injection boiler monitoring and control system |
| CN201113901Y (en) * | 2007-05-09 | 2008-09-10 | 北京高和华泰节能环保科技有限公司 | Asynchronous motor dedicated automatic electricity saver circuit |
-
2009
- 2009-05-19 CN CN2009101428720A patent/CN101893228B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2906705Y (en) * | 2006-01-16 | 2007-05-30 | 宫卓立 | Intelligent steam-injection boiler monitoring and control system |
| CN201113901Y (en) * | 2007-05-09 | 2008-09-10 | 北京高和华泰节能环保科技有限公司 | Asynchronous motor dedicated automatic electricity saver circuit |
Non-Patent Citations (3)
| Title |
|---|
| 刘克平，贾英超.变频控制技术在锅炉燃烧系统中的应用.《石油化工自动化》.2008,(第3期),第34-37页. * |
| 李洁,王臣.蒸汽锅炉补水变频调速原理及节能分析.《广东自动化与信息工程》.2000,(第2期),第42-44页. * |
| 郭景.用差压变送器实现锅炉的自动补水.《阴山学刊》.2003,(第1期),第87-88页. * |
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| CN101893228A (en) | 2010-11-24 |
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