CN205265288U - Automatic control flame out protection device - Google Patents
Automatic control flame out protection device Download PDFInfo
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- CN205265288U CN205265288U CN201521067731.4U CN201521067731U CN205265288U CN 205265288 U CN205265288 U CN 205265288U CN 201521067731 U CN201521067731 U CN 201521067731U CN 205265288 U CN205265288 U CN 205265288U
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- voltage
- resistance
- reference voltage
- protection device
- out protection
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Abstract
The utility model discloses an automatic control flame out protection device, including the solenoid valve and for the solenoid valve provides driving voltage's power supply battery, still include voltage conversion unit and the control unit, wherein the voltage conversion unit has input, reference edge and output, and power supply battery's voltage is received to its input, and a reference voltage is received to its reference edge to according to the driving voltage of this reference voltage at its output power supply magnet valve, wherein the control unit is through providing this different reference voltage to the voltage conversion unit to control voltage translation unit improves driving voltage's amplitude. The utility model discloses an automatic control flame out protection device can adjust the driving voltage who obtains higher amplitude when power supply battery's the driving voltage undersize that provides.
Description
Technical field
The utility model relates to a kind of flame-out protection device of automatically controlling.
Background technology
Flame-out protection device, the boiler of coal dust burning, oil or fuel gas successively carries out by certain program when flame-out, to ensure the device of boiler safety. Its key component is made up of ultraviolet fulgurite (electric eye) and flame eye. Work as boiler flameout, when electric eye does not observe flame, monitor is exported flame-out signal immediately, handles relay, makes it the supply of instantaneous trip fuel.
At present comparatively common flame-out protection device is to adopt thermocouple to add magnetic valve to realize on the market, and its specific works principle is as follows: rely on knob band moving electromagnetic valve to open, the thermoelectrical potential that relies on thermocouple to produce keeps the opening of magnetic valve; In the time of fray-out of flame, thermocouple loses thermoelectrical potential, and magnetic valve synchronously discharges, and fuel gas path is cut off, to complete blowout protection.
But the defect of this technology is thermocouple to be easy to agingly, along with the growth of service time, thermocouple is aging, and the thermoelectrical potential of generation is not enough to maintain the adhesive of magnetic valve, so fire has just gone out.
For overcoming above-mentioned problem, existing a kind of ion technology of stopping working, it is the complete battery-operated flame-out mechanism being based upon in conducting flame principle. While lifting knob, pulse igniter electric discharge, magnetic valve quick pick-up simultaneously, fuel gas path is opened, and combustion gas enters combustion chamber and completes igniting. When flame combustion, the micro-electric current that is additional to inductive needle forms loop by flame, burner, drain pan, and pulser continues to magnetic valve transmission " maintenance " order, and combustion gas is continued supply. If fray-out of flame, backfeed loop interrupts, and magnetic valve discharges immediately, and fuel gas path is cut off. Ion induction technology is used for infrared ray stove, and it needs two batteries to drive magnetic valve conventionally. With respect to the former,, there is not problem of aging in ion induction technology comparative maturity substantially.
Because the flame-out technology of ion is larger to the consumption of battery, in use, battery often cannot normal power supply, make magnetic valve can not get enough driving voltages and cannot move, but user cannot change again battery immediately.
Utility model content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of flame-out protection device of automatically controlling, and can, in the time that the driving voltage providing of supplying cell is too small, regulate the driving voltage that obtains higher amplitude.
For achieving the above object, the invention provides following technical scheme: a kind of flame-out protection device of automatically controlling, comprise magnetic valve and for magnetic valve provides the supplying cell of driving voltage, also comprise,
Voltage conversion unit, has input, reference edge and output, and its input receives the voltage of supplying cell, and its reference edge receives a reference voltage, and supplies the driving voltage of magnetic valve in its output output according to this reference voltage;
Control module, by this different reference voltages is provided to voltage conversion unit, improves the amplitude of driving voltage to control voltage conversion unit.
The utility model is further set to: described control module comprises,
Reference voltage generation unit, comprises and is connected in successively supplying cell both positive and negative polarity the first resistance and the second resistance, the common port of first and second resistance is in order to export this reference voltage;
Wherein at least one in the first resistance and the second resistance is adjustable resistance.
The utility model is further set to: described the first resistance is adjustable resistance.
The utility model is further set to: described control module also comprises,
Comparing unit in order to receive this driving voltage and a reference voltage, is exported control signal in the time that this driving voltage is less than this reference voltage;
Be series at the switching tube of the first resistance, make reference voltage generation unit provide this reference voltage to voltage conversion unit in response to this control signal;
Reference voltage generation unit, according to this reference voltage of Voltage-output of a backup battery.
The utility model is further set to: described comparing unit is comparator, and its in-phase input end receives the voltage of supplying cell, and its inverting input receives this reference voltage, and its output is exported this control signal.
The utility model is further set to: described reference voltage generation unit comprises and be connected in successively backup battery both positive and negative polarity the 3rd resistance and the 4th resistance, and the common port of third and fourth resistance is in order to export this reference voltage.
The utility model is further set to: at least one in described the 3rd resistance and the 4th resistance is adjustable resistance.
Compared to prior art, advantage of the present utility model is: by the conversion of voltage conversion unit, the voltage transitions of supplying cell is become to the driving voltage for magnetic valve, and, the voltage of this voltage conversion unit reference edge is adjustable, in the time that driving voltage is too small, can increase this driving voltage by the amplitude that increases reference voltage terminal.
Brief description of the drawings
Fig. 1 is the schematic diagram of voltage conversion unit and control module in the present embodiment;
Fig. 2 is the schematic diagram of voltage conversion unit in Fig. 1;
Fig. 3 is the schematic diagram of control module in Fig. 1.
Reference numeral: 100, voltage conversion unit; 200, control module; 210, reference voltage generation unit; 220, comparing unit; 230, reference voltage generation unit.
Detailed description of the invention
The embodiment that the utility model is controlled to flame-out protection device automatically referring to figs. 1 through Fig. 3 is described further.
Automatic control flame-out protection device in the present embodiment, comprises magnetic valve, supplying cell, voltage conversion unit 100 and control module 200, and supplying cell provides driving voltage for magnetic valve, and wherein, relevant mechanical part does not all illustrate in the drawings.
With reference to Fig. 1,
Voltage conversion unit 100 has input, reference edge and output, the input of voltage conversion unit 100 receives the voltage of supplying cell, the reference edge of voltage conversion unit 100 receives a reference voltage, the output output of voltage conversion unit 100 is relevant to this reference voltage, and offers the driving voltage of magnetic valve.
Control module 200, by this different reference voltages is provided to voltage conversion unit 100, improves the amplitude of driving voltage to control voltage conversion unit 100.
Based on above annexation, by the reference voltage size of regulation unit 200, in the time that reference voltage increases, the driving voltage that voltage conversion unit 100 is exported also increases.
With reference to Fig. 2,
Voltage conversion unit 100 is three terminal regulator U1, there is an IN end, OUT end and GND end, wherein, the IN end of three terminal regulator U1 is coupled to the positive pole of supplying cell BT1, the IN end of three terminal regulator U1 is coupled to magnetic valve YV1, other ground, magnetic valve YV1 is also coupled to the negative pole of supplying cell BT1, and supplying cell BT1 is in parallel with capacitor C 1.
By above-mentioned setting, the operation principle of three terminal regulator U1 is by input voltage of acceptance, then exports a stable output voltage, and wherein GND end is the common ground of input voltage and output voltage, the GND end that it should be noted that three terminal regulator U1 herein not with input, output voltage altogether.
With reference to Fig. 3,
Control module 200 comprises reference voltage generation unit 210, comparing unit 220, switching tube S1 and reference voltage generation unit 230.
Wherein, reference voltage generation unit 210 comprises resistance R 1 and resistance R 2, one end of resistance R 1 is coupled to the positive pole of supplying cell BT1, the other end is coupled to resistance R 2, one end of resistance R 2 is coupled to resistance R 1, the other end is coupled to the negative pole of supplying cell BT1, and wherein the common port of resistance R 1 and resistance R 2 is in order to export this reference voltage, and resistance R 1 is adjustable resistance;
Wherein, comparing unit 220 is comparator U2, and the in-phase input end of comparator U2 receives the voltage of supplying cell, and the inverting input of comparator U2 receives this reference voltage, and the output of comparator U2 is exported this control signal;
Wherein, switching tube S1 is metal-oxide-semiconductor, and the grid of metal-oxide-semiconductor is coupled to the output of comparator U2 by resistance R 5, and metal-oxide-semiconductor is series at one end of resistance R 1 and the positive pole of supplying cell BT1;
Wherein, reference voltage generation unit 230 comprises resistance R 3 and resistance R 4, one end of resistance R 3 is coupled to the positive pole of backup battery BT2, the other end is coupled to resistance R 4, one end of resistance R 4 is coupled to resistance R 3, the other end is coupled to the negative pole of backup battery BT2, and wherein the common port of resistance R 3 and resistance R 4 is in order to export this reference voltage, and resistance R 3 is adjustable resistance;
By above-mentioned setting, in the time that being less than this reference voltage, exports this driving voltage control signal, the control signal of comparator U2 output high level makes switch S 1 conducting, make reference voltage generation unit 210 access voltage conversion unit 100, now the GND terminal voltage of three terminal regulator U1 increases, therefore, the driving voltage of three terminal regulator U1 output also increases, and, by the resistance of regulating resistance R1, the amplitude of capable of regulating driving voltage; In the time that this driving voltage is greater than this reference voltage, export control signal, the control signal of comparator U2 output low level is ended switch S 1, and now the GND end of three terminal regulator U1 and input voltage and output voltage are altogether.
The above is only preferred embodiment of the present utility model, and protection domain of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection domain of the present utility model. It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (7)
1. automatically control a flame-out protection device, comprise magnetic valve and for magnetic valve provides the supplying cell of driving voltage, it is characterized in that: also comprise,
Voltage conversion unit, has input, reference edge and output, and its input receives the voltage of supplying cell, and its reference edge receives a reference voltage, and supplies the driving voltage of magnetic valve in its output output according to this reference voltage;
Control module, by this different reference voltages is provided to voltage conversion unit, improves the amplitude of driving voltage to control voltage conversion unit.
2. automatic control flame-out protection device according to claim 1, is characterized in that: described control module comprises,
Reference voltage generation unit, comprises and is connected in successively supplying cell both positive and negative polarity the first resistance and the second resistance, the common port of first and second resistance is in order to export this reference voltage;
Wherein at least one in the first resistance and the second resistance is adjustable resistance.
3. automatic control flame-out protection device according to claim 2, is characterized in that: described the first resistance is adjustable resistance.
4. automatic control flame-out protection device according to claim 3, is characterized in that: described control module also comprises,
Comparing unit in order to receive this driving voltage and a reference voltage, is exported control signal in the time that this driving voltage is less than this reference voltage;
Be series at the switching tube of the first resistance, make reference voltage generation unit provide this reference voltage to voltage conversion unit in response to this control signal;
Reference voltage generation unit, according to this reference voltage of Voltage-output of a backup battery.
5. automatic control flame-out protection device according to claim 4, is characterized in that: described comparing unit is comparator, and its in-phase input end receives the voltage of supplying cell, and its inverting input receives this reference voltage, and its output is exported this control signal.
6. automatic control flame-out protection device according to claim 4; it is characterized in that: described reference voltage generation unit comprises and be connected in successively backup battery both positive and negative polarity the 3rd resistance and the 4th resistance, the common port of third and fourth resistance is in order to export this reference voltage.
7. automatic control flame-out protection device according to claim 6, is characterized in that: at least one in described the 3rd resistance and the 4th resistance is adjustable resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521067731.4U CN205265288U (en) | 2015-12-18 | 2015-12-18 | Automatic control flame out protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521067731.4U CN205265288U (en) | 2015-12-18 | 2015-12-18 | Automatic control flame out protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205265288U true CN205265288U (en) | 2016-05-25 |
Family
ID=56006792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521067731.4U Expired - Fee Related CN205265288U (en) | 2015-12-18 | 2015-12-18 | Automatic control flame out protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205265288U (en) |
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2015
- 2015-12-18 CN CN201521067731.4U patent/CN205265288U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160525 Termination date: 20191218 |