CN114623463B - High-energy igniter - Google Patents
High-energy igniter Download PDFInfo
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- CN114623463B CN114623463B CN202011461059.2A CN202011461059A CN114623463B CN 114623463 B CN114623463 B CN 114623463B CN 202011461059 A CN202011461059 A CN 202011461059A CN 114623463 B CN114623463 B CN 114623463B
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- rectifying circuit
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- control switch
- storage capacitor
- energy storage
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23Q—IGNITION; EXTINGUISHING-DEVICES
- F23Q3/00—Igniters using electrically-produced sparks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M11/00—Power conversion systems not covered by the preceding groups
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
The embodiment of the application discloses a high-energy igniter, and belongs to the technical field of ignition. The high energy igniter includes: the device comprises a time control switch, a boost rectifying circuit, an energy storage capacitor, a switch discharge tube, an inductor and an ignition head; the two output ends of the time control switch are respectively connected with the two input ends of the boost rectifying circuit, and the two input ends of the time control switch are used for being connected with an external power supply; the two ends of the energy storage capacitor are respectively connected with the two output ends of the boosting rectifier circuit, the two input ends of the ignition head are respectively connected with the two ends of the energy storage capacitor, and the switch discharge tube is connected between one end of the energy storage capacitor and one input end of the ignition head after being connected with the inductor in series. In the embodiment of the application, the time control switch controls the boost rectifying circuit to be conducted with the external power supply in an intermittent mode, so that the charging effect of the boost rectifying circuit on the energy storage capacitor can be ensured, the heat dissipation time of the lifting rectifying circuit can be prolonged, the heat dissipation effect of the boost rectifying circuit is ensured, and the service life of the boost rectifying circuit is prolonged.
Description
Technical Field
The embodiment of the application relates to the technical field of ignition, in particular to a high-energy igniter.
Background
In fields such as petroleum and petrochemical industry, in order to ensure normal operation of equipment, pipelines in the equipment can be decompressed to realize emptying of gas in the pipelines. In order to avoid the direct discharge of the exhausted gas to the external environment, the pollution to the external environment is usually caused by igniting the exhausted gas at the exhaust port of the pipeline so as to burn the exhausted gas.
In the related art, a flame is usually adopted to ignite at the vent of the pipeline, so that potential safety hazards are easily caused by open flame, and personal injury is caused to ignition personnel. There is therefore a need for a device that is capable of auto-ignition.
Disclosure of Invention
The embodiment of the application provides a high-energy igniter which can be burnt out due to long-time work of a boost rectifying circuit in an ignition process. The technical scheme is as follows:
the embodiment of the application provides a high-energy igniter, which comprises: the device comprises a time control switch, a boost rectifying circuit, an energy storage capacitor, a switch discharge tube, an inductor and an ignition head;
the two output ends of the time control switch are respectively connected with the two input ends of the boost rectifying circuit, the two input ends of the time control switch are used for being connected with an external power supply, and the time control switch is used for controlling the boost rectifying circuit and the external power supply to be conducted intermittently within a preset duration;
the two ends of the energy storage capacitor are respectively connected with the two output ends of the boost rectifying circuit, the two input ends of the ignition head are respectively connected with the two ends of the energy storage capacitor, after the switch discharge tube is connected with the inductor in series, one end of the switch discharge tube, which is not connected with the inductor, is connected with one end of the energy storage capacitor, and one end of the inductor, which is not connected with the switch discharge tube, is connected with one input end of the ignition head.
Optionally, the boost rectifying circuit includes a boost transformer and a bridge rectifying circuit;
the two input ends of the step-up transformer are respectively connected with the two output ends of the time control switch, the two output ends of the step-up transformer are respectively connected with the two input ends of the bridge rectifier circuit, and the two ends of the energy storage capacitor are connected in parallel with the output ends of the bridge rectifier circuit.
Optionally, the high-energy igniter further comprises a current-limiting capacitor, and one output end of the step-up transformer and one input end of the bridge rectifier circuit are connected through the current-limiting capacitor.
Optionally, the boost rectifying circuit includes a boost transformer and a full-wave rectifying circuit;
the two input ends of the step-up transformer are respectively connected with the two output ends of the time control switch, the two output ends of the step-up transformer are respectively connected with the two input ends of the full-wave rectifying circuit, and the two ends of the energy storage capacitor are connected with the center tap of the step-up transformer and the output end of the full-wave rectifying circuit.
Optionally, the time control switch is a cyclic time relay, and the time relay comprises a driving coil SJ and a control contact;
one end of the driving coil SJ is connected with one end of the control contact, the other end of the driving coil SJ is connected with one input end of the boost rectifying circuit, and two ends of the driving coil SJ are also used for being connected with the external power supply;
the other end of the control contact is connected with the other input end of the boost rectifying circuit, and the control contact is used for controlling the boost rectifying circuit to be conducted with the external power supply intermittently when the driving coil SJ is electrified.
Optionally, the high-energy igniter further comprises a control switch, one end of the control switch is connected with one end of the driving coil SJ, the other end of the control switch is connected with the external power supply, and the control switch is used for controlling the driving coil SJ to be turned on in the preset time length.
Optionally, the control switch is a normally open switch.
Optionally, the control switch is a self-locking switch.
Optionally, the high-energy igniter further comprises a discharge resistor, and two ends of the discharge resistor are respectively connected with two input ends of the ignition head.
Optionally, the ignition head is a dual platinum tripolar spark plug.
The technical scheme provided by the embodiment of the application has the beneficial effects that at least:
in the embodiment of the application, after the time control switch is used for controlling the boost rectifying circuit to be conducted with the external power supply, the boost rectifying circuit can boost and rectify the voltage input by the external power supply, so that the rectified direct current meets the charging condition of the energy storage capacitor. Because the switch discharge tube has a certain voltage conduction threshold, that is, before the charging voltage of the energy storage capacitor does not reach the voltage conduction threshold, the energy storage capacitor is in a continuous charging state, so that the electric energy stored in the energy storage capacitor can be ensured to meet the requirement of high-energy ignition, and the success rate of ignition of the ignition head after the energy storage capacitor is discharged is ensured. In addition, the time control switch can control the intermittent conduction of the boost rectifying circuit and the external power supply, so that the boost rectifying circuit can work intermittently, namely the boost rectifying circuit can perform intermittent boost rectifying on the voltage input by the external power supply, the charging effect of the boost rectifying circuit on the energy storage capacitor can be guaranteed, the heat dissipation time of the lifting rectifying circuit can be prolonged, the heat dissipation effect of the boost rectifying circuit is guaranteed, the phenomenon that the boost rectifying circuit is burnt out due to the fact that the internal temperature is increased is avoided, the service life of the boost rectifying circuit is prolonged, and the service life of the high-energy igniter is prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic circuit diagram of a high energy igniter according to an embodiment of the application;
FIG. 2 is a schematic circuit diagram of another high energy igniter according to an embodiment of the application;
FIG. 3 is a schematic circuit diagram of yet another high energy igniter provided in accordance with an embodiment of the application;
FIG. 4 is a schematic circuit diagram of yet another high energy igniter provided in accordance with an embodiment of the application;
fig. 5 is a schematic circuit diagram of still another high-energy igniter according to an embodiment of the application.
Reference numerals:
1: a time-controlled switch; 2: a boost rectifying circuit;
c1: an energy storage capacitor; k: switching the discharge tube; l: an inductor; DH: igniting the head; t: a step-up transformer; d: a bridge rectifier circuit; c2: a current limiting capacitor; SJ: a driving coil SJ; SJ-1: a control contact; AT: a control switch; r: and a discharge resistor.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the following detailed description of the embodiments of the present application will be given with reference to the accompanying drawings.
Fig. 1 is a schematic view of a high energy igniter according to an example of the application. As shown in fig. 1, the high energy igniter includes: the time control switch 1, the boost rectifying circuit 2, the energy storage capacitor C1, the switch discharge tube K, the inductor L and the ignition head DH; the two output ends of the time control switch 1 are respectively connected with the two input ends of the boost rectifying circuit 2, the two input ends of the time control switch 1 are used for being connected with an external power supply, and the time control switch 1 is used for controlling the boost rectifying circuit 2 and the external power supply to be conducted intermittently within a preset duration; the two ends of the energy storage capacitor C1 are respectively connected with the two output ends of the boost rectifying circuit 2, the two input ends of the ignition head DH are respectively connected with the two ends of the energy storage capacitor C1, after the switch discharge tube K is connected with the inductor L in series, one end of the switch discharge tube K which is not connected with the inductor L is connected with one end of the energy storage capacitor C1, and one end of the inductor L which is not connected with the switch discharge tube K is connected with one input end of the ignition head DH.
In the embodiment of the application, after the time-controlled switch 1 controls the boost rectifying circuit 2 to be conducted with the external power supply, the boost rectifying circuit D can boost and rectify the voltage input by the external power supply, so that the rectified direct current meets the charging condition of the energy storage capacitor C1. Because the switch discharge tube K has a certain voltage conduction threshold, that is, before the charging voltage of the energy storage capacitor C1 does not reach the voltage conduction threshold, the energy storage capacitor C1 is in a continuous charging state, so that the electric energy stored in the energy storage capacitor C1 can be ensured to meet the requirement of high-energy ignition, and the success rate of ignition of the ignition head DH is ensured by the electric energy released by the energy storage capacitor C1 after the switch discharge tube K is broken down. In addition, the time control switch 1 can control the boost rectifying circuit 2 to be conducted with an external power supply in an intermittent mode, so that the boost rectifying circuit 2 can work in an intermittent mode, namely, the boost rectifying circuit 2 can conduct intermittent boost rectification on the voltage input by the external power supply, the charging effect of the boost rectifying circuit 2 on the energy storage capacitor C1 can be guaranteed, the heat dissipation time of the lifting rectifying circuit D can be prolonged, the heat dissipation effect of the boost rectifying circuit 2 is guaranteed, the phenomenon that the boost rectifying circuit 2 burns out due to the increase of the internal temperature is avoided, the service life of the boost rectifying circuit 2 is prolonged, and the service life of the high-energy igniter is prolonged.
The external power supply is an ac power supply, and the effective voltage value of the ac power supply is 220 v, 380 v, or other values of effective voltage, which can be naturally also used, so long as the voltage can be boosted by the boost rectifier circuit 2, and then the spark is generated at the ignition end of the ignition head DH. When the ac power source is a 380 v three-phase ac power source, the boost rectifier circuit 2 further includes a third input terminal for connection to a third input terminal of an external power source. In this way, the boost rectifier circuit 2 can perform the boost rectification process on the ac voltage input from the external three-phase ac power supply.
The preset duration can be determined according to the working voltage of the boost rectifying circuit 2 and the ignition requirement of the ignition head DH, so that the condition that the self temperature is high due to the fact that the working time of the boost rectifying circuit 2 is long when the preset duration is long is avoided, and meanwhile, the failure rate of ignition of the ignition head DH when the preset duration is short is avoided. By way of example, the preset duration may be 15 seconds, 20 seconds, 30 seconds, etc.
In the actual use process, the external power supply is assumed to be 220V AC power supply, the preset time period is 20 seconds, at this time, two output ends of the time control switch 1 are respectively connected with a live wire and a zero wire of the external power supply, then the time control switch 1 is used for providing alternating voltage for the boost rectifying circuit 2 in 20 seconds, the boost rectifying circuit 2 is used for carrying out boost rectifying treatment on the intermittently input alternating voltage so as to charge the energy storage capacitor C1, and then when the charging voltage of the energy storage capacitor C1 is greater than the voltage conduction threshold value of the switch discharge tube K, the electric energy released by the energy storage capacitor C1 is ignited through the ignition head DH. If the high-energy igniter does not ignite successfully within 20 seconds, the ignition personnel can control the boost rectifying circuit 2 and the external power supply to conduct in a gap manner within 20 seconds through the time control switch 1 again so as to repeatedly ignite through the ignition head, so that the ignition success is ensured.
In some embodiments, the time-controlled switch 1 is a power switch control device composed of a single-chip microprocessor as a core and an electronic circuit, wherein two input ends of the power switch control device are used for being connected with an external power supply, and two output ends of the power switch control device are used for being respectively connected with two input ends of the boost rectifying circuit 2.
The single-chip microprocessor is provided with a preset time length control unit and a circulation intermittent time control unit, when the power switch control device works, the preset time length control unit can count time with a preset time length stored in advance, and the power switch is controlled to be turned on or off based on the circulation intermittent time through the circulation intermittent time control unit in the preset time length, so that the boost rectifying circuit 2 and an external power supply are controlled to be intermittently turned on in the preset time length.
Of course, the single-chip microprocessor may only have a cycle intermittent time control unit, and at this time, the power switch control device may only implement intermittent conduction between the boost rectifier circuit 2 and the external power supply. Therefore, in order to realize that the boost rectifier circuit 2 is conducted with the external power supply within a preset time period, the high-energy igniter further comprises a control switch AT, one end of the control switch AT is connected with one input end of the power switch control device, and the other end of the control switch AT is used for being connected with the external power supply.
Therefore, the control switch AT can control the power switch control device to be conducted with the external power supply within a preset time period, and the boost rectifying circuit 2 can be controlled to be conducted with the external power supply intermittently within the preset time period through the power switch control device.
Optionally, the control switch AT is a self-locking switch, AT this time, the user can press the self-locking switch to control the power switch control device to be connected with the external power supply, after a preset time period, the user continues to press the self-locking switch to control the disconnection between the power switch control device and the external power supply, so as to control the power switch control device to be connected with the external power supply within the preset time period.
Optionally, the control switch AT is a normally open switch, and AT this time, the user continuously presses the control switch AT within a preset time period, so as to control the power switch control device to be turned on with the external power supply within the preset time period.
Because the normally open switch needs the user to continuously press, for the self-locking switch, the connection between the power switch control device and an external power supply can be prevented from being forgotten to be disconnected by the user due to the self reason.
In other embodiments, as shown in FIG. 2, the time-controlled switch 1 is a cyclic time relay, where the time relay includes a drive coil SJ and a control contact SJ-1.
Optionally, the driving coil SJ may be connected to an external circuit, and the control contact SJ-1 is connected in series between the external power supply and one input end of the boost rectifying circuit 2, and at this time, the driving coil SJ may be controlled by the external circuit to be energized for a preset period of time, and then, in the preset period of time when the driving coil SJ is energized, the boost rectifying circuit 2 is controlled to be intermittently turned on with the external power supply for the preset period of time by turning on or off the control contact SJ-1.
Optionally, one end of the driving coil SJ is connected with one end of the control contact SJ-1, the other end of the driving coil SJ is connected with one input end of the boost rectifying circuit 2, and two ends of the driving coil SJ are also used for being connected with an external power supply; the other end of the control contact SJ-1 is connected with the other input end of the boost rectifying circuit 2, and the control contact SJ-1 is used for controlling the boost rectifying circuit 2 to be conducted with an external power supply intermittently when the driving coil SJ is electrified.
AT this time, in order to realize that the driving coil SJ is electrified within a preset time period, as shown in fig. 2, the high-energy igniter further includes a control switch AT, one end of the control switch AT is connected with one end of the driving coil SJ, and the other end of the control switch AT is connected with an external power supply. In this way, the control switch AT can control the conduction of the driving coil SJ, and control the conduction of the driving coil SJ within a preset time period.
Optionally, the control switch AT is a self-locking switch, AT this time, the user can press the self-locking switch to control the driving coil SJ to be conducted with the external power supply, after a preset time period, the user continues to press the self-locking switch to control the disconnection between the driving coil SJ and the external power supply, so as to control the driving coil SJ to be conducted with the external power supply within the preset time period.
Optionally, the control switch AT is a normally open switch, and AT this time, the user continuously presses the control switch AT within a preset time period, so that the driving coil SJ and the external power supply can be controlled to be turned on within the preset time period.
Because the normally open switch needs the user to continuously press, for the self-locking switch, can avoid the user forgetting to break the connection between drive coil SJ and the external power supply because of self reason.
In the embodiment of the application, the boost rectifier circuit 2 comprises a boost transformer T and a rectifier circuit, wherein two input ends of the boost transformer T are respectively connected with two output ends of the time control switch 1, two output ends of the boost transformer T are respectively connected with two input ends of the rectifier circuit, and the output end of the rectifier circuit is connected with the energy storage capacitor C1.
In this way, the voltage input by the external power supply can be boosted through the boost transformer T, and then the boosted voltage is rectified through the rectifying circuit to obtain direct current, so that the energy storage capacitor C1 can be conveniently charged.
The step-up transformer T is mainly used for step-up processing of an ac voltage input from an external power supply, so as to meet an ignition voltage of the subsequent ignition head DH. For example, an external power supply inputs 220 v ac voltage, and at this time, the 220 v ac voltage can be boosted by the boost transformer T to obtain 2000 v ac voltage, so that the energy storage capacitor C1 is conveniently charged after rectifying treatment, so as to meet the ignition requirement of the subsequent ignition head DH.
The rectifying circuit may be a bridge rectifying circuit D or a full-wave rectifying circuit, and of course, may also be other rectifying circuits, which is not limited in the embodiment of the present application. The rectifier circuit is, for example, a half-wave rectifier circuit.
In some embodiments, as shown in fig. 3, the boost rectifier circuit 2 includes a boost transformer T and a bridge rectifier circuit D circuit, where two input ends of the boost transformer T are respectively connected with two output ends of the time switch 1, two output ends of the boost transformer T are respectively connected with two input ends of the bridge rectifier circuit D, and two ends of the energy storage capacitor C1 are connected in parallel with the output ends of the bridge rectifier circuit D.
The bridge rectifier circuit D comprises a first diode, a second diode, a third diode and a fourth diode, wherein the cathode of the first diode is connected with the cathode of the second diode, the anode of the third diode is connected with the anode of the fourth diode, the anode of the first diode is connected with the cathode of the fourth diode, and the anode of the second diode is connected with the cathode of the third diode.
At this time, the positive electrode of the first diode is connected with one output end of the step-up transformer T, the positive electrode of the second diode is connected with the other output end of the step-up transformer T, the negative electrode of the first diode is connected with one end of the energy storage capacitor C1, and the positive electrode of the fourth diode is connected with the other end of the energy storage capacitor C1.
In other embodiments, the boost rectifying circuit 2 includes a boost transformer T and a full-wave rectifying circuit; two input ends of the step-up transformer T are respectively connected with two output ends of the time control switch 1, two output ends of the step-up transformer T are respectively connected with two input ends of the full-wave rectifying circuit, and two ends of the energy storage capacitor C1 are connected with a center tap of the step-up transformer T and the output ends of the full-wave rectifying circuit.
The full-wave rectifying circuit comprises a fifth diode and a sixth diode, and the cathode of the fifth diode is connected with the cathode of the sixth diode. At this time, the positive electrode of the fifth diode is connected to one output terminal of the step-up transformer T, the positive electrode of the sixth diode is connected to the other output terminal of the step-up transformer, and the negative electrode of the fifth diode is connected to one end of the energy storage capacitor C1.
In the embodiment of the application, when the high-voltage output current after the boosting treatment based on the boosting transformer T is sent to the rectifier to charge the energy storage capacitor C1, the current output by the boosting transformer T is easily overlarge, so that the boosting transformer T is in overload operation. Thus, as shown in fig. 4, the high-energy igniter further includes a current-limiting capacitor C2, and one output terminal of the step-up transformer T and one input terminal of the rectifying circuit D are connected through the current-limiting capacitor C2.
When the rectifying circuit D is a bridge rectifying circuit D, the current-limiting capacitor C2 is connected between one output end of the step-up transformer T and one input end of the bridge rectifying circuit D; when the rectifying circuit D is a full-wave rectifying circuit, the current limiting capacitor C2 is connected between one output terminal of the step-up transformer T and one input terminal of the full-wave rectifying circuit.
In this way, the maximum current output by the step-up transformer T to the rectifying circuit D is limited by the current limiting capacitor C2, so that overload operation of the step-up transformer T is avoided, and the service life of the step-up transformer T is further prolonged on the basis of the time control switch 1.
In addition, the current limiting capacitor C2 limits the maximum current output by the step-up transformer T, that is, limits the maximum current input to the rectifying circuit D and the energy storage capacitor C1, so that overload operation of the rectifying circuit D and the energy storage capacitor C1 is not generated, and the service lives of the rectifying circuit D and the energy storage capacitor C1 are prolonged.
In addition, the current limiting resistor is used in the related art to limit the maximum current output by the step-up transformer T to the rectifying circuit D, and the limited current is lost due to the heat generated by the current limiting resistor, so that energy is wasted. In the application, the current-limiting capacitor C2 is adopted, so that the limited current can charge the current-limiting capacitor C2, and the limited current is stored in the current-limiting capacitor C2, so that energy waste is avoided, when the voltage connected to the two ends of the current-limiting capacitor C2 is smaller, the current output by the step-up transformer to the rectifying circuit D is insufficient to charge the energy-storage capacitor C1, and at the moment, the current-limiting capacitor C2 can serve as a power supply to discharge, so that the current output to the rectifying circuit D is ensured, the speed of the energy-storage capacitor C1 is ensured, and the energy utilization rate is improved.
In the embodiment of the present application, as shown in fig. 5, the high-energy igniter further includes a discharge resistor R, two ends of the discharge resistor R are respectively connected to two input ends of the ignition head DH, that is, in the actual use process, a first end of the discharge resistor R is connected to a first input end of the ignition head DH, and a second end of the discharge resistor R is connected to a second input end of the ignition head DH.
Therefore, due to the connection of the discharge resistor R and the ignition head DH, the formed electric loop between the energy storage capacitor C1 and the discharge resistor R can be realized, so that after the ignition head DH is successfully ignited, the electric energy on the energy storage capacitor C1 can be consumed through the discharge resistor R, and the condition that the high-energy igniter burns out due to unexpected situations due to the existence of the electric energy on the energy storage capacitor C1 is avoided.
In the embodiment of the application, the ignition head DH is a double-platinum tripolar spark plug. Thus, the platinum spark plug has the characteristics of improving the ignition performance, improving the spark-over performance, spreading the heat range and ensuring good durability, thereby ensuring the success rate of ignition.
The central electrode of the three-stage spark plug is made of 2 mm pure platinum, namely the central electrode is made of 2 mm pure platinum, so that energy can be rapidly gathered when the double-platinum three-stage spark plug ignites, and quick and successful ignition is ensured.
Of course, in the embodiment of the present application, the ignition head DH may be other ignition structures besides a dual platinum tripolar spark plug, so long as the ignition success can be ensured when the energy storage capacitor C1 discharges, which is not limited in the embodiment of the present application.
In the embodiment of the application, the high-energy igniter further comprises a shell, the shell is provided with an external plug, the external plug is used for being connected with an external power supply, the time control switch 1, the boosting rectifying circuit 2, the energy storage capacitor C1, the switch discharge tube K and the inductor L are all positioned in the shell, two input ends of the time control switch 1 are connected with the external plug, the ignition head DH is fixed on the shell, a wiring terminal of the ignition head DH stretches into the inside of the shell and is connected with the energy storage capacitor C1, and the ignition end of the ignition head DH is exposed outside the shell, so that ignition is conveniently realized.
Thus, the housing is used for accommodating the electric devices, so that the high-energy igniter is convenient to install, and foreign matters can be prevented from adhering to the electric devices, and the housing is used for effectively protecting the electric devices included in the high-energy igniter.
In the embodiment of the application, after the step-up transformer is controlled to be conducted with the external power supply through the time control switch, the step-up transformer can step up the voltage input by the external power supply, and the voltage after the step-up treatment can be rectified through the rectifying circuit, so that the rectified direct current can charge the energy storage capacitor, and the high-energy igniter is ensured to have an ignition condition. Because the switch discharge tube has a certain voltage conduction threshold, that is, before the charging voltage of the energy storage capacitor does not reach the voltage conduction threshold, the energy storage capacitor is in a continuous charging state, so that the electric energy stored in the energy storage capacitor can be ensured to meet the requirement of high-energy ignition, and the success rate of ignition of the ignition head after the switch discharge tube is broken down is ensured. In addition, the intermittent conduction of the step-up transformer and the external power supply can be controlled through the time control switch, so that intermittent operation of the step-up transformer can be guaranteed, namely intermittent step-up processing of the step-up transformer on the voltage input by the external power supply can be guaranteed, normal processing of the step-up transformer on the voltage input by the external power supply can be guaranteed, the heat dissipation time of the step-up transformer can be prolonged, the heat dissipation effect of the step-up transformer is guaranteed, the phenomenon that the step-up transformer is burnt out due to the fact that the internal temperature of the step-up transformer is increased is avoided, and the service life of the step-up transformer is prolonged. In addition, the output current of the step-up transformer can be limited through the current limiting capacitor connected with one output end of the step-up transformer, so that the step-up transformer is prevented from working in an overload state, the service life of the step-up transformer is further prolonged, and the service life of the high-energy igniter is further prolonged.
The foregoing description of the embodiments is merely illustrative of the present application and is not intended to limit the embodiments of the present application, and any modifications, equivalents, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of the embodiments of the present application.
Claims (8)
1. A high energy igniter, the high energy igniter comprising: the device comprises a time control switch (1), a boost rectifying circuit (2), an energy storage capacitor C1, a switch discharge tube K, an inductor L and an ignition head DH;
two output ends of the time control switch (1) are respectively connected with two input ends of the boost rectifying circuit (2), the two input ends of the time control switch (1) are used for being connected with an external power supply, and the time control switch (1) is used for controlling the boost rectifying circuit (2) and the external power supply to be conducted intermittently in a preset time period;
the two ends of the energy storage capacitor C1 are respectively connected with two output ends of the boost rectifying circuit (2), two input ends of the ignition head DH are respectively connected with two ends of the energy storage capacitor C1, after the switch discharge tube K is connected with the inductor L in series, one end of the switch discharge tube K which is not connected with the inductor L is connected with one end of the energy storage capacitor C1, and one end of the inductor L which is not connected with the switch discharge tube K is connected with one input end of the ignition head DH;
the time control switch (1) is a circulating time relay, and the time relay comprises a driving coil SJ and a control contact SJ-1;
one end of the driving coil SJ is connected with one end of the control contact SJ-1, the other end of the driving coil SJ is connected with one input end of the boost rectifying circuit (2), and two ends of the driving coil SJ are also used for being connected with the external power supply;
the other end of the control contact SJ-1 is connected with the other input end of the boost rectifying circuit (2), and the control contact SJ-1 is used for controlling the boost rectifying circuit (2) to be conducted with the external power supply intermittently when the driving coil SJ is electrified;
the high-energy igniter further comprises a control switch AT, one end of the control switch AT is connected with one end of the driving coil SJ, the other end of the control switch AT is used for being connected with the external power supply, and the control switch AT is used for controlling the driving coil SJ to be conducted in the preset time length;
still include the casing, the casing has external plug, and this external plug is used for being connected with external power supply, and time switch (1), boost rectifier circuit (2), energy storage capacitor C1, switch discharge tube K and inductor L all are located the casing, and two input and external plug connection of time switch (1), ignition head DH are fixed on the casing, and the wiring end of ignition head DH stretches into the inside of casing and is connected with energy storage capacitor C1, and the ignition end of ignition head DH exposes in the outside of casing.
2. The high-energy igniter according to claim 1, wherein the step-up rectifying circuit (2) includes a step-up transformer T and a bridge rectifying circuit D;
the two input ends of the step-up transformer T are respectively connected with the two output ends of the time control switch (1), the two output ends of the step-up transformer T are respectively connected with the two input ends of the bridge rectifier circuit D, and the two ends of the energy storage capacitor C1 are connected in parallel with the output ends of the bridge rectifier circuit D.
3. The high energy igniter of claim 2 further including a current limiting capacitor C2, an output of the step-up transformer T and an input of the bridge rectifier circuit D being connected by the current limiting capacitor C2.
4. The high-energy igniter according to claim 1, wherein the step-up rectifying circuit (2) includes a step-up transformer T and a full-wave rectifying circuit;
the two input ends of the step-up transformer T are respectively connected with the two output ends of the time control switch (1), the two output ends of the step-up transformer T are respectively connected with the two input ends of the full-wave rectifying circuit, and the two ends of the energy storage capacitor C1 are connected with the center tap of the step-up transformer T and the output end of the full-wave rectifying circuit.
5. The high energy igniter of claim 1 wherein the control switch AT is a normally open switch.
6. The high energy igniter of claim 1 wherein the control switch AT is a self-locking switch.
7. The high energy igniter of any one of claims 1-4 further comprising a discharge resistor R, wherein two ends of the discharge resistor R are connected to two input ends of the ignition head DH, respectively.
8. The high energy igniter of any one of claims 1-4 wherein the igniter head DH is a dual platinum tripolar spark plug.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011461059.2A CN114623463B (en) | 2020-12-11 | 2020-12-11 | High-energy igniter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011461059.2A CN114623463B (en) | 2020-12-11 | 2020-12-11 | High-energy igniter |
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| CN114623463A CN114623463A (en) | 2022-06-14 |
| CN114623463B true CN114623463B (en) | 2023-08-22 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR8601661A (en) * | 1986-04-07 | 1987-11-03 | Rinnai Kk | IGNITION CIRCUIT |
| CN1625672A (en) * | 2002-04-25 | 2005-06-08 | 丹福斯有限公司 | Igniting method of oil burner and electronic ignition circuit of oil burners |
| CN204100290U (en) * | 2014-09-24 | 2015-01-14 | 南京畅能源测控设备有限公司 | A kind of high-energy electronic igniter circuit |
| CN211952829U (en) * | 2020-04-22 | 2020-11-17 | 迁安江顺机械设备制造有限责任公司 | Blast furnace gas ignition device |
-
2020
- 2020-12-11 CN CN202011461059.2A patent/CN114623463B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR8601661A (en) * | 1986-04-07 | 1987-11-03 | Rinnai Kk | IGNITION CIRCUIT |
| CN1625672A (en) * | 2002-04-25 | 2005-06-08 | 丹福斯有限公司 | Igniting method of oil burner and electronic ignition circuit of oil burners |
| CN204100290U (en) * | 2014-09-24 | 2015-01-14 | 南京畅能源测控设备有限公司 | A kind of high-energy electronic igniter circuit |
| CN211952829U (en) * | 2020-04-22 | 2020-11-17 | 迁安江顺机械设备制造有限责任公司 | Blast furnace gas ignition device |
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| CN114623463A (en) | 2022-06-14 |
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