CN219431941U - High-energy igniter for gas turbine - Google Patents
High-energy igniter for gas turbine Download PDFInfo
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- CN219431941U CN219431941U CN202320898458.8U CN202320898458U CN219431941U CN 219431941 U CN219431941 U CN 219431941U CN 202320898458 U CN202320898458 U CN 202320898458U CN 219431941 U CN219431941 U CN 219431941U
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- discharge tube
- gas discharge
- voltage
- gas turbine
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Abstract
The utility model discloses a high-energy igniter for a gas turbine, and relates to the technical field of high-energy igniters. Comprising the following steps: the electronic switching circuit comprises a resistor, a capacitor and a gas discharge tube. The utility model uses the gas discharge tube as an electronic switch to control the ignition work of the igniter: when the voltage of the electronic switch circuit reaches the conducting voltage of the gas discharge tube, the gas discharge tube is conducted, and the electric nozzle generates sparks. At this time, the voltage of the electronic switching circuit is reduced, then the power supply supplies voltage, the voltage of the electronic switching circuit reaches the conducting voltage of the gas discharge tube again under the action of the step-up transformer, the electric nozzle generates sparks again, and the process is circulated to finish the sparking work. The utility model adopts the electronic switch to replace the mechanical contact switch, so that the problem of contact adhesion is avoided, and the ignition reliability is extremely high.
Description
Technical Field
The utility model relates to the technical field of high-energy igniters, in particular to a high-energy igniter for a gas turbine.
Background
The gas turbine is an internal combustion power machine which uses continuously flowing gas as working medium to drive the impeller to rotate at high speed and convert the energy of fuel into useful work, and is a rotary impeller type heat engine.
In the prior art, an igniter on a gas turbine mainly adopts on-off of a mechanical contact to enable a secondary side of a transformer to obtain high-voltage incoming electricity and fire: the primary coil is connected in series with the electromagnetic induction pair contact, and the secondary coil obtains 4000V ignition voltage by rapidly switching on and switching off (frequency 1000-1100 Hz) through the contact, and ignition spark is generated on the electrode of the electric nozzle to complete the ignition work of the gas turbine.
The defects of the ignition mode are that: when the ignition work is carried out, the electromagnetic induction contact point is easy to adhere, and the quick disconnection and connection of the mechanical contact point cannot be realized, so that the ignition failure is caused.
Disclosure of Invention
The embodiment of the utility model provides a high-energy igniter for a gas turbine, which can solve the problem that the electromagnetic induction joint is easy to adhere in the prior art.
An embodiment of the present utility model provides a high energy igniter for a gas turbine engine, comprising: the primary coil of the step-up transformer L is connected with a power supply, the secondary coil of the step-up transformer L is connected with the anode of a rectifying diode D, and the cathode of the rectifying diode D is connected with an electronic switch circuit;
the electronic switching circuit includes: one end of the resistor R is connected with the rectifying diode D, the other end of the resistor R is connected with one end of the gas discharge tube K, and the other end of the gas discharge tube K is an output end; one end of the capacitor C is connected with the other end of the resistor R, and the other end of the capacitor C is grounded.
In addition, the voltage of the power supply is 24V.
In addition, the output terminal includes: the gas discharge tube K is connected with one end of the shielding cable, and the other end of the shielding cable is connected with the electric nozzle.
In addition, the model of the gas discharge tube K is R-12M; when the voltage at two ends of the gas discharge tube K is higher than the protection specification value, a short circuit phenomenon can occur in the gas discharge tube K, and the input over-high voltage is absorbed.
In addition, the rectifier diode D is 2CL56E, and is used for converting ac power into dc power.
Compared with the prior art, the high-energy igniter for the gas turbine has the following beneficial effects:
the utility model adopts the electronic switch to replace the mechanical contact switch, so that the problem of contact adhesion is avoided, the ignition reliability is extremely high, the generated spark energy is larger, and the service life is longer. The utility model adopts electronic switch control, can avoid the dust accumulation phenomenon of the firing end of the electric nozzle, and improves the self-cleaning capability of the electric nozzle.
Drawings
FIG. 1 is a schematic circuit diagram of a high energy igniter for a gas turbine engine according to an embodiment of the present utility model.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
As shown in fig. 1, an embodiment of the present utility model provides a high energy igniter for a gas turbine engine, comprising: and the primary coil of the step-up transformer L is connected with a power supply, the secondary coil of the step-up transformer L is connected with the anode of a rectifier diode D, and the cathode of the rectifier diode D is connected with an electronic switch circuit. The rectifier diode D is of the type 2CL56E for converting alternating current into direct current. The type of the gas discharge tube K is R-12M, and the gas discharge tube K is used for absorbing the input over-high voltage when the voltage at two ends of the gas discharge tube K is higher than the protection specification value.
The electronic switching circuit includes: the resistor R, one end of the resistor R is connected with the rectifier diode D, the other end of the resistor R is connected with one end of the gas discharge tube K, and the other end of the gas discharge tube K is an output end; one end of the capacitor C is connected with the other end of the resistor R. The output end comprises a shielding cable and an electric nozzle, the right end of the discharge tube and the connecting end of the gas discharge tube K are connected with one end of the shielding cable, and the other end of the capacitor C is grounded. The output end comprises: the other end of the gas discharge tube K is connected with one end of the shielding cable, and the other end of the shielding cable is connected with the electric nozzle.
The operation method of the utility model is as follows:
after the power supply connected with the input end of the high-energy igniter is turned on, the voltage of the primary coil of the step-up transformer is increased, after the action of the amplifying transformer, the voltage of the secondary coil of the step-up transformer is synchronously increased and is transmitted into the electronic switching circuit, when the voltage of the electronic switching circuit reaches the conducting voltage of the gas discharge tube, the gas discharge tube is conducted, and the electric nozzle generates sparks. At this time, the voltage of the electronic switching circuit is reduced, then the power supply supplies voltage, the voltage of the electronic switching circuit reaches the conducting voltage of the gas discharge tube again under the action of the step-up transformer, the electric nozzle generates sparks again, and the process is circulated to finish the sparking work.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
Claims (5)
1. A high energy igniter for a gas turbine engine, comprising: the primary coil of the step-up transformer L is connected with a power supply, the secondary coil of the step-up transformer L is connected with the anode of a rectifying diode D, and the cathode of the rectifying diode D is connected with an electronic switch circuit;
the electronic switching circuit includes: one end of the resistor R is connected with the cathode of the rectifier diode D, the other end of the resistor R is connected with one end of the gas discharge tube K, and the other end of the gas discharge tube K is an output end; one end of the capacitor C is connected with the other end of the resistor R, and the other end of the capacitor C is grounded.
2. A high energy igniter for a gas turbine engine as defined in claim 1 wherein said power supply voltage is 24V.
3. The high energy igniter for a gas turbine engine as defined in claim 1 wherein said output comprises: the gas discharge tube K is connected with one end of the shielding cable, and the other end of the shielding cable is connected with the electric nozzle.
4. A high energy igniter for a gas turbine engine as defined in claim 1 wherein said gas discharge tube K is of the type R-12M; when the voltage at two ends of the gas discharge tube K is higher than the protection specification value, a short circuit phenomenon can occur in the gas discharge tube K, and the input over-high voltage is absorbed.
5. A high energy igniter for a gas turbine engine as defined in claim 1 wherein said rectifier diode D is of the type 2CL56E for converting ac power to dc power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320898458.8U CN219431941U (en) | 2023-04-20 | 2023-04-20 | High-energy igniter for gas turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320898458.8U CN219431941U (en) | 2023-04-20 | 2023-04-20 | High-energy igniter for gas turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219431941U true CN219431941U (en) | 2023-07-28 |
Family
ID=87345396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320898458.8U Active CN219431941U (en) | 2023-04-20 | 2023-04-20 | High-energy igniter for gas turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219431941U (en) |
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2023
- 2023-04-20 CN CN202320898458.8U patent/CN219431941U/en active Active
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