CN200986215Y - Energy-saving boiler of shaped machine - Google Patents
Energy-saving boiler of shaped machine Download PDFInfo
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- CN200986215Y CN200986215Y CN 200620140781 CN200620140781U CN200986215Y CN 200986215 Y CN200986215 Y CN 200986215Y CN 200620140781 CN200620140781 CN 200620140781 CN 200620140781 U CN200620140781 U CN 200620140781U CN 200986215 Y CN200986215 Y CN 200986215Y
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Abstract
The utility model discloses an energy saving boiler for molding machine, which belongs to the technological field of boiler of molding machine and comprises an air inducting power unit, a fan power unit and grate power unit which are connected in parallel on a three phase power source. The utility model also comprises three inducting control unit, a fan control unit, a grating control unit, a pressure/temperature detecting unit and a microcomputer control unit. The boiler adopts a proposal of microcomputer analog control so as to acquire operation conditions of every point of the boiler duly, use properly frequency converting technology dealing with operational energy of assisting machine for the boiler, reduce electricity consumption, coal consumption, reject rate and relevant maintenance cost during molding of fabric in operation of the boiler effectively and prolong service life of the boiler. Coal can be fully burnt with low slag yield and smoke, which can protect environment.
Description
Technical field
The utility model discloses a kind of forming machine power economized boiler, belong to forming machine boiler technology field.
Background technology
Common forming machine boiler comprises air blast, fire grate, air-introduced machine.Air blast is introduced the air in the external world in the burner hearth, to guarantee enough oxygen being arranged for burning in the burner hearth; Fire grate is sent into fuel in the burner hearth and is burnt; The flue gas that air-introduced machine is produced after with fuel combustion is sent burner hearth.And in the existing boiler, there is defective in the system of control air blast, fire grate, air-introduced machine, causes boiler to have following problem in process of production:
Forming machine because temperature fluctuated will directly influence the typing quality, all can cause inconsistent as washing shrinkage, flatness, coloured light degree and the stiffness etc. of fabric in fabric typing; And for boiler, intermittent start and stop will have a strong impact on the service life of boiler, the consumption of electric power and the waste of resource.Each subsidiary engine motor of boiler is when normally moving 5～7 times at the electric current in when starting, the motor of high-power blower class particularly, the starting time is long again, serious waste electric power resource.The temperature control scope that general boiler is in operation is ± 5 ℃, and the interval temperature that is limited to lower limit on promptly reaches 10 ℃, and can be higher when actual motion, and it is big that perhaps its temperature control scope of the boiler that has is also wanted.For forming machine, high more on the one hand temperature difference is big more to the quality influence of typing in batch, because the texture of typing was harder when temperature was high, the severity that fabric color changes, temperature then makes the texture of fabric too soft when low, so the product that typing is come out is very unstable, on same cloth, can occur one section hard one section soft, promptly before and after texture inconsistent; On the other hand, because the temperature of forming machine is set at a point, when oily temperature rise, the temperature control valve will be closed, the temperature control valve will be opened when the oil temperature descended, and did not reach the temperature control requirement of temperature controller, and what the temperature control valve did not also stop works up and down, very easily wear and tear, damage the temperature control valve, cause the increase of maintenance cost.
For thermo oil boiler, can stop the running of all subsidiary engines on the one hand after oily temperature reaches the boiler design temperature, amount of oxygen reduces in the burner hearth, and coal-fired being rested in the burner hearth becomes imperfect combustion by abundant burning, a large amount of black smoke gas that can produce are slowly arranged to the external world, have influenced environment; Simultaneously, owing to unburnt reason, the shortage of heat that is produced consumes coal-fired an innocent person to offer heat medium oil; Yet after the heat medium oil temperature descended, boiler was reset subsidiary engine, owing to before become cinder by the coal of burning-out slowly, coal-fired as to introduce from coal bunker again, burning then, this process will wait a period of time, so oily temperature also can continue to descend; On the other hand, when subsidiary engine was reset, blower fan particularly produced certain influence greater than the starting current of 5～7 times of rated current in electrical network, and electric control system is because frequent start-stop under big electric current, and fault rate is very high, also jeopardizes the safety of motor; The subsidiary engine of operation also is easy to break down at full speed after starting is finished.
The utility model content
At above-mentioned the deficiencies in the prior art, the utility model provides a kind of employing micro computer simulation control scheme, and real-time sampling is collected boiler each point ruuning situation, rationally uses converter technique to handle the forming machine power economized boiler of the operating power of boiler accessory machinery.
To achieve these goals, the technical scheme that the utility model adopted is: a kind of forming machine power economized boiler comprises: three air inducing power unit, air blast power unit, fire grate power units that are connected in parallel on the three phase mains are used to carry out the start and stop of boiler; Three air inducing control module, air blast control module, fire grate control modules that are connected in parallel between power supply phase line and the zero line are respectively applied for the start and stop of described air inducing power unit, air blast power unit, fire grate power unit are controlled; The Pressure/Temperature measurement and control unit, pressure, the temperature signal of collection thermal medium boiler are monitored described air inducing control module, air blast control module, fire grate control module again; Also comprise: microcomputer control unit, by the temperature signal of Pressure/Temperature measurement and control unit real-time sampling collection thermal medium boiler, adjust the operation energy of air inducing power unit, air blast power unit, fire grate power unit again according to temperature signal.
As the further setting of such scheme, described microcomputer control unit comprises frequency converter INV1, frequency converter INV2, the frequency converter INV3 that is connected with micro computer analog controller MCU respectively; Frequency converter INV1, frequency converter INV2, frequency converter INV3 are serially connected in respectively in air inducing power unit, air blast power unit, the fire grate power unit; Amplification of temperature control prime and temperature signal are provided with a sample point between amplifying in the Pressure/Temperature measurement and control unit, and the signal of sample point is delivered to the negative electrode of diode D1, and the sun level of diode D1 is connected to the IN port of micro computer analog controller MCU by a resistance R 1.Frequency converter can be transformed to voltage and the constant alternating current of fixed-frequency the alternating current of voltage or changeable frequency.The signal that frequency converter sends by reception micro computer analog controller MCU changes the operation energy of power unit, and promptly frequency converter is by changing the motor speed that its power output and output voltage change power unit.
Described air inducing power unit comprises that abs Q2, the contactor of series connection are often opened main contacts KM2-1 and blower motor M2 successively, the air blast power unit comprises that abs Q3, the contactor of series connection are often opened main contacts KM3-1 and blower motor M3 successively, and the fire grate power unit comprises that abs Q6, the contactor of series connection are often opened main contacts KM7-1 and fire grate M6 successively; Described frequency converter INV1, frequency converter INV2, frequency converter INV3 are serially connected in abs Q2 respectively and contactor often leaves between the main contacts KM2-1, abs Q3 and contactor often leaves between the main contacts KM3-1, abs Q6 and contactor are often opened between the main contacts KM7-1.
Described air inducing control module comprises the auxiliary contact switch K12 and the contactor KM2 coil of series connection successively, the air blast control module comprises the auxiliary contact switch K13 and the contactor KM3 coil of series connection successively, and the fire grate control module comprises the auxiliary contact switch K14 and the contactor KM7 coil of series connection successively.
The VI of described frequency converter INV1, ACM port link to each other with OUT1, the GND port of micro computer analog controller MCU, are serially connected with relay normally open contact KV1-1 between the FOR port of frequency converter INV1 and the DCM port; The VI of frequency converter INV2, ACM port link to each other with OUT2, the GND port of micro computer analog controller MCU, are serially connected with relay normally open contact KV2-1 between the FOR port of frequency converter INV2 and the DCM port; The VI of frequency converter INV3, ACM port link to each other with OUT3, the GND port of micro computer analog controller MCU, are serially connected with relay normally open contact KV3-1 between the FOR port of frequency converter INV3 and the DCM port; Be parallel with relay K V1 coil on the contactor KM2 coil; Be parallel with relay K V2 coil on the contactor KM3 coil; Be parallel with relay K V3 coil on the contactor KM7 coil.
Be serially connected with speed regulator RW1 between the VI port of described frequency converter INV1 and the ACM port, the input signal port of speed regulator RW1 links to each other with the OUT1 port of micro computer analog controller MCU; Be serially connected with speed regulator RW2 between the VI port of frequency converter INV2 and the ACM port, the input signal port of speed regulator RW2 links to each other with the OUT2 port of micro computer analog controller MCU; Be serially connected with speed regulator RW3 between the VI port of frequency converter INV3 and the ACM port, the input signal port of speed regulator RW3 links to each other with the OUT3 port of micro computer analog controller MCU.Can make microcall to the work equilibrium condition of each power unit by speed regulator, because the operating condition of each power unit is different.
Offer GND port, OUT1 port, OUT2 port, OUT3 port on the described Pressure/Temperature measurement and control unit.When micro computer analog controller MCU uses common source, with these four port output control signals.
The utility model adopts micro computer simulation control scheme; real-time sampling is collected boiler each point ruuning situation; rationally the utilization converter technique is handled the operating power of boiler accessory machinery; go out defect rate, relevant device maintenance cost when the power consumption when not only having effectively reduced boiler operatiopn, coal-fired resource, fabric typing; and long service life; fired coal combustion is complete, slag yield reduces, black smoke reduces, and has protected environment.
Description of drawings
In conjunction with the embodiments the utility model is described in further detail with reference to the accompanying drawings.
Fig. 1 is the utility model power unit combinational circuit schematic diagram;
Fig. 2 is the utility model control module combinational circuit schematic diagram;
Fig. 3 is the utility model Pressure/Temperature measurement and control unit circuit theory diagrams;
Fig. 4 is the circuit theory diagrams of the utility model micro computer analog controller MCU;
Fig. 5 is the circuit theory diagrams of the utility model frequency converter INV1;
Fig. 6 is the circuit theory diagrams of the utility model frequency converter INV2;
Fig. 7 is the circuit theory diagrams of the utility model frequency converter INV3;
Fig. 8 is the sample point circuit theory diagrams in the utility model Pressure/Temperature measurement and control unit;
Fig. 9 is the utility model electrical control logic diagram.
Specific embodiment
As shown in Figure 1, 2, 3, the utility model forming machine power economized boiler comprises three the air inducing power unit, air blast power unit, the fire grate power units that are connected in parallel on the three phase mains, is used to carry out the start and stop of boiler; Three air inducing control module, air blast control module, fire grate control modules that are connected in parallel between power supply phase line and the zero line are respectively applied for the start and stop of described air inducing power unit, air blast power unit, fire grate power unit are controlled; The Pressure/Temperature measurement and control unit, pressure, the temperature signal of collection thermal medium boiler are monitored described air inducing control module, air blast control module, fire grate control module again; Microcomputer control unit by the temperature signal of Pressure/Temperature measurement and control unit real-time sampling collection thermal medium boiler, is adjusted the operation energy of air inducing power unit, air blast power unit, fire grate power unit again according to temperature signal.
As shown in Figure 1, the air inducing power unit comprises that abs Q2, frequency converter INV1, the contactor of series connection are often opened main contacts KM2-1 and blower motor M2 successively.Shown in Fig. 4,5, be serially connected with speed regulator RW1 between the VI port of frequency converter INV1 and the ACM port, the VI port of frequency converter INV1 links to each other with the OUT1 port of micro computer analog controller MCU by the input signal port of speed regulator RW1, and the ACM port links to each other with the GND port of micro computer analog controller MCU; Be serially connected with relay normally open contact KV1-1 between the FOR port of frequency converter INV1 and the DCM port.The air blast power unit comprises that abs Q3, frequency converter INV2, the contactor of series connection are often opened main contacts KM3-1 and blower motor M3 successively.Shown in Fig. 4,6, be serially connected with speed regulator RW2 between the VI port of frequency converter INV2 and the ACM port, the VI port of frequency converter INV2 links to each other with the OUT2 port of micro computer analog controller MCU by the input signal port of speed regulator RW2, and the ACM port links to each other with the GND port of micro computer analog controller MCU; Be serially connected with relay normally open contact KV2-1 between the FOR port of frequency converter INV2 and the DCM port.The fire grate power unit comprises that abs Q6, frequency converter INV3, the contactor of series connection are often opened main contacts KM6-1 and fire grate M6 successively.Shown in Fig. 4,7, be serially connected with speed regulator RW3 between the VI port of frequency converter INV3 and the ACM port, the VI port of frequency converter INV3 links to each other with the OUT3 port of micro computer analog controller MCU by the input signal port of speed regulator RW3, and the ACM port links to each other with the GND port of micro computer analog controller MCU; Be serially connected with relay normally open contact KV3-1 between the FOR port of frequency converter INV3 and the DCM port.(the VI port: aanalogvoltage frequency instruction input changes the frequency of frequency converter by change voltage, thereby controls motor speed; ACM port: simulation ground; GND port: the ground of aanalogvoltage; DCM port: digitally; FOR port: just changeing input.)
As shown in Figure 2, the air inducing control module comprises contactor KM2 coil parallel with one another and relay K V1 coil, and with parallel connection after contactor KM2 coil and the auxiliary contact switch K12 that connects of relay K V1 coil; The air blast control module comprises contactor KM3 coil parallel with one another and relay K V2 coil, and with parallel connection after contactor KM3 coil and the auxiliary contact switch K13 that connects of relay K V2 coil; The fire grate control module comprises contactor KM7 coil parallel with one another and relay K V3 coil, and with parallel connection after contactor KM7 coil and the auxiliary contact switch K14 that connects of relay K V3 coil.Air inducing control module parallel with one another, air blast control module, fire grate control module and be serially connected in again between power supply phase line and the zero line after fuse FU connects.
As shown in Figure 8, amplification of temperature control prime and temperature signal are provided with a sample point between amplifying in the Pressure/Temperature measurement and control unit, the signal of sample point is delivered to the negative electrode of diode D1, and the sun level of diode D1 is connected to the IN port of micro computer analog controller MCU by a resistance R 1.As shown in Figure 3, also offer GND port, OUT1 port, OUT2 port, OUT3 port on the Pressure/Temperature measurement and control unit.
As shown in Figure 9, the electrical installation principle of the utility model forming machine power economized boiler: open general supply, start oil circulating pump, thermal medium boiler enters armed state (general normal operation all is an automatic control state, so explain during to automatic control state at this).The temperature of Pressure/Temperature measurement and control unit is set to required target temperature value, is lower than (being higher than) as actual temperature and temperature is set more than 5 ℃, on the Pressure/Temperature measurement and control unit panel-A (+A) indicator lamp is lighted; And being lower than (being higher than), actual temperature temperature is set more than 10 ℃, on the Pressure/Temperature measurement and control unit panel-B (+B) indicator lamp is lighted; State selecting switch is chosen " automatic control " position, complete machine enters automatic control state.
Heat up: connect the air inducing control module earlier, contactor KM2 coil gets, main contacts KM2-1 adhesive often left by contactor in the air inducing power unit, blower motor M2 starts, and after the several seconds, connects air blast control module, fire grate control module, contactor KM3, KM7 coil get, contactor often leaves main contacts KM3-1, KM7-1 adhesive in air blast control module, the fire grate control module, and blower motor M3, fire grate M6 start, and each subsidiary engine moves at full speed.When heat carrier is warmed up to target temperature-5 ℃, micro computer analog controller MCU monitors the inner signal change that arrives target temperature of Pressure/Temperature measurement and control unit by sample point, in time frequency converter INV1, frequency converter INV2, the frequency converter INV3 that adjusts each subsidiary engine moves energy, be the running speed of blower motor M2, blower motor M3, fire grate M6, reduce the running speed of each subsidiary engine in proportion; Actual temperature is more near target temperature around here, the operation energy of each subsidiary engine is low more, up to the output energy is zero, each subsidiary engine shut down (in order to guarantee the safety of heat carrier, micro computer analog controller MCU will stop to provide energy signal to each subsidiary engine near-2 ℃ of target temperature the time); When making temperature, certain reason continues to rise, when surpassing target temperature+5 ℃, micro computer analog controller MCU monitors the output signal of Pressure/Temperature measurement and control unit by sample point, cut off each subsidiary engine from frequency converter INV1, frequency converter INV2, frequency converter INV3 to the connection blower motor M2, blower motor M3, the fire grate M6, thereby guarantee the safety of boiler and heat carrier.
Insulation: because the immediately monitoring of micro computer analog controller MCU, the temperature of heat carrier remains at ± point of 1 ℃ on (looking) with hot equipment enthusiasm condition, because, when using less with hot equipment when hot, the heat carrier temperature can rise, when micro computer analog controller MCU monitors the variation of temperature rising, by signal being sent to frequency converter INV1, INV2, INV3 and make the energy decreases of each subsidiary engine, just make blower motor M2, blower motor M3, the rotating speed of fire grate M6 slows down, thereby boiler heat supplying is reduced, the heat carrier heat absorption also reduces, so temperature no longer rises; And with hot equipment with heat for a long time, the heat carrier temperature descends, after micro computer analog controller MCU in time monitors the decrease of temperature variation by sample point, send signal to frequency converter INV1, INV2, INV3, thereby the energy of each subsidiary engine is increased sharply, each subsidiary engine operation is quickened, boiler heat supplying increases, the heat carrier heat absorption also increases, and the heat carrier temperature is no longer descended, and is in time provided heat with hot equipment.
The defect rate decline that goes out the relatively during typing of the utility model forming machine power economized boiler fabric reaches about 70%, relevant electric power resources conservation about 22%, coal-fired resource descends seven percentage points, and each motor becomes the slow operation that starts by hard reboot, the dash current that no longer includes when starting exists, and electrical network is not had influence, and electric control system no longer is subjected to frequent start and stop and heavy current impact, all subsidiary engine equipment operate steadily, and maintenance cost descends; Simultaneously, the temperature control system control action of forming machine is significantly reduced, machine decreases and reduces, and setting temperature is steady.
Claims (7)
1. forming machine power economized boiler comprises:
Three air inducing power unit, air blast power unit, fire grate power units that are connected in parallel on the three phase mains are used to carry out the start and stop of boiler;
Three air inducing control module, air blast control module, fire grate control modules that are connected in parallel between power supply phase line and the zero line are respectively applied for the start and stop of described air inducing power unit, air blast power unit, fire grate power unit are controlled;
The Pressure/Temperature measurement and control unit, pressure, the temperature signal of collection thermal medium boiler are monitored described air inducing control module, air blast control module, fire grate control module again;
It is characterized in that also comprising:
Microcomputer control unit by the temperature signal of Pressure/Temperature measurement and control unit real-time sampling collection thermal medium boiler, is adjusted the operation energy of air inducing power unit, air blast power unit, fire grate power unit again according to temperature signal.
2. according to the described forming machine power economized boiler of claim 1, it is characterized in that described microcomputer control unit comprises frequency converter INV1, frequency converter INV2, the frequency converter INV3 that is connected with micro computer analog controller MCU respectively; Frequency converter INV1, frequency converter INV2, frequency converter INV3 are serially connected in respectively in air inducing power unit, air blast power unit, the fire grate power unit; Amplification of temperature control prime and temperature signal are provided with a sample point between amplifying in the Pressure/Temperature measurement and control unit, and the signal of sample point is delivered to the negative electrode of diode D1, and the sun level of diode D1 is connected to the IN port of micro computer analog controller MCU by a resistance R 1.
3. according to claim 1 or 2 described forming machine power economized boilers, it is characterized in that described air inducing power unit comprises that abs Q2, the contactor of series connection are often opened main contacts KM2-1 and blower motor M2 successively, the air blast power unit comprises that abs Q3, the contactor of series connection are often opened main contacts KM3-1 and blower motor M3 successively, and the fire grate power unit comprises that abs Q6, the contactor of series connection are often opened main contacts KM7-1 and fire grate M6 successively; Described frequency converter INV1, frequency converter INV2, frequency converter INV3 are serially connected in abs Q2 respectively and contactor often leaves between the main contacts KM2-1, abs Q3 and contactor often leaves between the main contacts KM3-1, abs Q6 and contactor are often opened between the main contacts KM7-1.
4. according to the described forming machine power economized boiler of claim 1, it is characterized in that described air inducing control module comprises the auxiliary contact switch K12 and the contactor KM2 coil of series connection successively, the air blast control module comprises the auxiliary contact switch K13 and the contactor KM3 coil of series connection successively, and the fire grate control module comprises the auxiliary contact switch K14 and the contactor KM7 coil of series connection successively.
5. according to claim 2 or 4 described forming machine power economized boilers, the VI, the ACM port that it is characterized in that described frequency converter INV1 link to each other with OUT1, the GND port of micro computer analog controller MCU, are serially connected with relay normally open contact KV1-1 between the FOR port of frequency converter INV1 and the DCM port; The VI of frequency converter INV2, ACM port link to each other with OUT2, the GND port of micro computer analog controller MCU, are serially connected with relay normally open contact KV2-1 between the FOR port of frequency converter INV2 and the DCM port; The VI of frequency converter INV3, ACM port link to each other with OUT3, the GND port of micro computer analog controller MCU, are serially connected with relay normally open contact KV3-1 between the FOR port of frequency converter INV3 and the DCM port; Be parallel with relay K V1 coil on the contactor KM2 coil; Be parallel with relay K V2 coil on the contactor KM3 coil; Be parallel with relay K V3 coil on the contactor KM7 coil.
6. according to the described forming machine power economized boiler of claim 5, it is characterized in that being serially connected with speed regulator RW1 between the VI port of described frequency converter INV1 and the ACM port, the input signal port of speed regulator RW1 links to each other with the OUT1 port of micro computer analog controller MCU; Be serially connected with speed regulator RW2 between the VI port of frequency converter INV2 and the ACM port, the input signal port of speed regulator RW2 links to each other with the OUT2 port of micro computer analog controller MCU; Be serially connected with speed regulator RW3 between the VI port of frequency converter INV3 and the ACM port, the input signal port of speed regulator RW3 links to each other with the OUT3 port of micro computer analog controller MCU.
7. according to claim 1 or 2 described forming machine power economized boilers, it is characterized in that offering on the described Pressure/Temperature measurement and control unit GND port, OUT1 port, OUT2 port, OUT3 port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620140781 CN200986215Y (en) | 2006-12-07 | 2006-12-07 | Energy-saving boiler of shaped machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620140781 CN200986215Y (en) | 2006-12-07 | 2006-12-07 | Energy-saving boiler of shaped machine |
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| CN200986215Y true CN200986215Y (en) | 2007-12-05 |
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| CN 200620140781 Expired - Fee Related CN200986215Y (en) | 2006-12-07 | 2006-12-07 | Energy-saving boiler of shaped machine |
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Cited By (1)
| 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 |
-
2006
- 2006-12-07 CN CN 200620140781 patent/CN200986215Y/en not_active Expired - Fee Related
Cited By (1)
| 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 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071205 Termination date: 20141207 |
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| EXPY | Termination of patent right or utility model |