CN209941077U - Automatic ignition device of plasma spraying equipment - Google Patents
Automatic ignition device of plasma spraying equipment Download PDFInfo
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- CN209941077U CN209941077U CN201920634675.XU CN201920634675U CN209941077U CN 209941077 U CN209941077 U CN 209941077U CN 201920634675 U CN201920634675 U CN 201920634675U CN 209941077 U CN209941077 U CN 209941077U
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Abstract
The utility model discloses an automatic ignition of plasma spraying equipment, including the main control cabinet, install in the main control circuit of main control cabinet, transfer box and plasma spraying spray gun, and increase a double voltage ignition control box that is independent of outside main control cabinet and the transfer box, double voltage ignition control box is provided with automatically controlled double voltage ignition circuit, and automatically controlled double voltage ignition circuit and switching device are connected through the cable electricity to the main control circuit, and double voltage ignition circuit electricity is connected in switching device, and plasma spraying spray gun is connected to the switching device electricity. The utility model discloses increase an independent electronic box as two voltage ignition control box to the ignition system circuit installation including automatically controlled two voltage ignition circuit in two voltage ignition control box, effectively prevent that ignition system from being easily by the water erosion that spills in the adapter box.
Description
Technical Field
The utility model belongs to the technical field of the ignition of ion spraying equipment technique and specifically relates to an automatic ignition of plasma spraying equipment is related to.
Background
During start-up of the ion spraying apparatus, a high-voltage discharge is generated between the cathode and the anode of the plasma spraying torch to ionize argon gas passing between the cathode and the anode, thereby igniting the plasma spraying torch. In the prior art, an ignition control device of a plasma spraying device is installed in an adapter box of the plasma spraying device, an ignition system in the adapter box is switched on by pressing an ignition or start button on a main control cabinet, so that high voltage of 2500 to 3000V is generated, and the high voltage is applied to a cathode and an anode of a plasma spraying spray gun to be discharged and ignited.
The prior art mainly comprises the following two points: 1. the ignition system is arranged in the adapter box, and when a water cable or a water pipe is disassembled, water is easy to spill on the ignition system and elements thereof, so that faults such as short circuit or electric leakage are easy to cause. 2. An ignition system in the transfer box can generate an ignition gap during ignition, obvious discharge sparks exist during work, a large amount of circuit boards, electrical components and necessary cables are installed in the transfer box, the discharge sparks and the ignition gap are easy to burn the components or the cables in the transfer box, frequent maintenance is needed, and potential safety hazards exist. There is a need for improvement.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an automatic ignition device of plasma spraying equipment, the ignition is more stable and safe, and the plant maintenance is more convenient, improve equipment's security performance to prior art exists not enough.
In order to realize the purpose, the utility model discloses the technical scheme who adopts is: the utility model provides an automatic ignition of plasma spraying equipment, including the master control cabinet, install in the master control circuit of master control cabinet, the transfer box, install in the switching device of transfer box and install in the plasma spraying spray gun of plasma spraying equipment, increase a pair of voltage ignition control box outside independent of master control cabinet and transfer box, pair of voltage ignition control box is provided with automatically controlled two voltage ignition circuit, the master control circuit is connected automatically controlled two voltage ignition circuit and/or switching device through the cable electricity respectively, two voltage ignition circuit electricity are connected in the switching device, switching device electricity is connected the plasma spraying spray gun.
In a further technical scheme, the electric control dual-voltage ignition circuit is provided with a power switch Q1, a low-voltage ignition power supply circuit, a high-voltage ignition power supply circuit and a low-voltage ignition control circuit;
the low-voltage ignition power supply circuit is provided with a first power supply input end and a low-voltage ignition power supply end,
the high-voltage ignition power supply circuit is provided with a second power supply input end and a high-voltage ignition power supply end,
the low-voltage ignition control circuit is provided with a third power supply input end and a controller which respectively switches on or off the corresponding low-voltage ignition power supply circuit and the corresponding high-voltage ignition power supply circuit after receiving a switching signal;
the first end of the power switch Q1 is electrically connected to the main control circuit, the second end is electrically connected to the first power input end, the second power input end and the third power input end respectively,
the low-voltage ignition power supply end and the high-voltage ignition power supply end are respectively and electrically connected with the switching device or the plasma spraying spray gun.
In a further technical scheme, the switching device comprises an ignition positive cable interface and an ignition negative cable interface which are arranged in the switching box, the high-voltage ignition power supply end is provided with a high-voltage positive electrode and a high-voltage negative electrode, the low-voltage ignition power supply end is provided with a low-voltage positive electrode and a low-voltage negative electrode, the high-voltage positive electrode and the low-voltage positive electrode are respectively and electrically connected to the ignition positive cable interface, the high-voltage negative electrode and the low-voltage negative electrode are respectively and electrically connected to the ignition negative cable interface, the plasma spraying spray gun is provided with a spray gun ignition plug, and the spray gun ignition plug is respectively and electrically connected to the.
In a further technical scheme, the main control circuit is provided with a main power supply output end and a main control ignition switch KM7,
the first end of the master control ignition switch KM7 is electrically connected with the main power supply output end, the second end of the master control ignition switch KM7 is electrically connected with the first end of the power supply switch Q1, and the second end of the power supply switch Q1 is electrically connected with the first power supply input end, the second power supply input end and the third power supply input end respectively to form a double-control switch branch;
the low-voltage ignition control circuit is provided with a low-voltage control transformer, an ignition switch SA1, a relay coil KM1 and a time relay coil KT1,
the input end of the low-voltage control transformer is set as the third power supply input end, the first end of the ignition switch SA1 is electrically connected with the output end of the low-voltage control transformer, and the second end of the ignition switch SA1 is electrically connected with the relay coil KM1 and the time relay coil KT1 respectively;
the first switch KM1 is connected in series in the low-voltage ignition power supply circuit, and the first switch KM1 is closed and conducted when the relay coil KM1 is electrified;
a high-voltage ignition delay conduction switch KT1 is connected in series in the high-voltage ignition power supply circuit, and the high-voltage ignition delay conduction switch KT1 is in delay closing conduction when the time relay coil KT1 is electrified;
after the ignition switch SA1 is conducted, the low-voltage ignition power supply circuit is conducted instantly, and the high-voltage ignition power supply circuit is conducted in a delayed mode.
In a further technical scheme, the plasma spraying spray gun is provided with a spray gun ignition plug; the low-voltage ignition power supply circuit is internally provided with a low-voltage ignition transformer T1, the input end of a low-voltage ignition transformer T1 is set as the first power supply input end, the output end of a low-voltage ignition transformer T1 is electrically connected with the first end of a first switch KM1, and the second end of the first switch KM1 is electrically connected with a spray gun ignition power plug.
In a further technical scheme, be provided with a high-pressure ignition transformer T2 in the high pressure ignition power supply circuit, the first end that high pressure ignition delay switches on switch KT1 sets to second power input end, the second end electricity of high pressure ignition delay switches on switch KT1 connect the input of high pressure ignition transformer T2, and the output electricity of high pressure ignition transformer T2 is connected the spray gun ignition plug.
In a further technical scheme, the output voltage of the output end of the low-voltage ignition transformer T1 is set to be 80-100V DC voltage, the output voltage of the output end of the high-voltage ignition transformer T2 is set to be 8-10KV DC voltage, and the output voltage of the output end of the low-voltage control transformer is set to be 12-36V DC voltage.
In a further technical scheme, the dual-voltage ignition control box is provided with a control panel, and the control panel is provided with the ignition switch SA1, the power switch Q1, the power indicator lamp H1, the operation indicator lamp H2 and the ignition indicator lamp H3; and the output end of the low-voltage control transformer is connected with an ignition control branch circuit, a power indicator lamp H1, an operation indication branch circuit and an ignition indication branch circuit in parallel.
In a further technical scheme, the ignition control branch is provided with the ignition switch SA1, the relay coil KM1, the time relay coil KT1 and the relay coil KA5,
the relay coil KM1, the time relay coil KT1 and the relay coil KA5 are connected in parallel to form a relay coil branch, the ignition switch SA1 and the relay coil branch are connected in series to form an ignition control branch, and when the ignition switch SA1 is switched on, the ignition control branch is electrically switched on;
the operation indication branch is provided with a second switch KM1 and an operation indication lamp H2, the second switch KM1 and the operation indication lamp H2 are connected in series to form an operation indication branch, when the relay coil KM1 is electrified, the first switch KM1 and the second switch KM1 are respectively closed and conducted, and the operation indication branch is electrically conducted;
ignition indication branch road be provided with ignition indication switch KA5 with ignition pilot lamp H3, ignition indication switch KA5 and ignition pilot lamp H3 establish ties and form an ignition indication branch road, and ignition indication switch KA5 closed switches on when relay coil KA5 gets the electricity, and ignition indication branch road electrical property switches on.
In a further technical scheme, the high-voltage ignition transformer T2 adopts a packaged electronic high-voltage package, the plasma spraying gun is provided with an ignition copper needle serving as a cathode and arranged inside the plasma spraying gun, the ignition copper needle serves as an anode, the cathode of the plasma spraying gun is connected with a water cable, the cathode of the high-voltage ignition transformer T2 is connected with the cathode of the plasma spraying gun through the water cable, and the anode of the high-voltage ignition transformer T2 is directly electrically connected to the ignition copper needle in the plasma spraying gun so as to realize discharge between the ignition copper needle and the cathode of the plasma spraying gun.
Compared with the prior art, the utility model the advantage that has is: the utility model discloses simple structure increases an independent electronic box as two voltage ignition control box to the ignition system circuit installation including automatically controlled two voltage ignition circuit in two voltage ignition control box, effectively prevent that ignition system from being spilled the water erosion of leaking in by the transfer box easily.
In addition, the high-voltage ignition transformer T2 adopts the electronic type high-voltage package that the encapsulation is good, does not have the ignition clearance in the ignition process, can not appear the phenomenon that the spark splashes, can not burn the component or the cable in the adapter box, reduces the equipment maintenance work, and the ignition is more stable and safe, and the equipment maintenance is more convenient, and the security performance of equipment obtains improving.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a circuit block diagram of the present invention.
Fig. 2 is a first part of the circuit schematic of the present invention.
Fig. 3 is a second part of the circuit schematic of the present invention.
Fig. 4 is a third portion of the circuit schematic of the present invention.
Fig. 5 is a schematic structural diagram of the control panel of the present invention.
The labels in the figure are:
1. a main control cabinet.
2. An adapter box.
3. A plasma spray gun.
4. Double-voltage ignition control box.
5. A control panel.
Detailed Description
The following are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby.
An automatic ignition device of plasma spraying equipment, as shown in fig. 1 to 5, comprises three control cabinets, specifically comprises a main control cabinet 1, a junction box 2 and a double-voltage ignition control box 4, wherein the double-voltage ignition control box 4 is independently arranged outside the main control cabinet 1 and the junction box 2.
The automatic ignition device comprises a plasma spraying spray gun 3 arranged on the plasma spraying equipment, and the plasma spraying spray gun 3 is provided with a spray gun ignition plug.
The utility model discloses in, main control cabinet 1 installs main control circuit, transfer box 2 and installs switching device, and two voltage ignition control box 4 are provided with automatically controlled two voltage ignition circuit, and main control circuit connects automatically controlled two voltage ignition circuit and switching device through the cable electricity respectively, and two voltage ignition circuit electricity are connected in switching device, and plasma spraying spray gun 3 is connected to the switching device electricity.
The utility model discloses an overcome the water erosion that current ignition system spilled in being transferred case 2 easily, increase an independent electronic box as two voltage ignition control box 4 to the ignition system circuit installation including automatically controlled two voltage ignition circuit is in two voltage ignition control box 4.
In a specific embodiment of the electric control dual-voltage ignition circuit, the electric control dual-voltage ignition circuit is provided with a power switch Q1, a low-voltage ignition power supply circuit, a high-voltage ignition power supply circuit and a low-voltage ignition control circuit; the low-voltage ignition power supply circuit is provided with a first power supply input end and a low-voltage ignition power supply end, the high-voltage ignition power supply circuit is provided with a second power supply input end and a high-voltage ignition power supply end, the low-voltage ignition control circuit is provided with a third power supply input end, and a controller is used for respectively switching on or off the corresponding low-voltage ignition power supply circuit and the corresponding high-voltage ignition power supply circuit after receiving a switching signal; the first end of the power switch Q1 is electrically connected to the main control circuit, the second end is electrically connected to the first power input end, the second power input end and the third power input end respectively, and the low-voltage ignition power supply end and the high-voltage ignition power supply end are electrically connected to the switching device or the plasma spraying spray gun 3 respectively.
In a specific embodiment of the adapter device, the adapter device comprises an ignition positive cable interface and an ignition negative cable interface arranged in the adapter box 2, the high-voltage ignition power supply end is provided with a high-voltage positive electrode and a high-voltage negative electrode, the low-voltage ignition power supply end is provided with a low-voltage positive electrode and a low-voltage negative electrode, the high-voltage positive electrode and the low-voltage positive electrode are respectively and electrically connected to the ignition positive cable interface, the high-voltage negative electrode and the low-voltage negative electrode are respectively and electrically connected to the ignition negative cable interface, and the gun ignition contact plugs are respectively and electrically connected to the.
The high-voltage ignition transformer T2 adopts a packaged electronic high-voltage package, the plasma spraying spray gun 3 is provided with an ignition copper needle which is used as a cathode and is arranged inside the plasma spraying spray gun 3, the ignition copper needle is used as an anode, the cathode of the plasma spraying spray gun 3 is connected with a water cable, the cathode of the high-voltage ignition transformer T2 is connected with the cathode of the plasma spraying spray gun 3 through the water cable, the anode of the high-voltage ignition transformer T2 is directly and electrically connected with the ignition copper needle in the plasma spraying spray gun 3, so that discharge is realized between the ignition copper needle and the cathode of the plasma spraying spray gun 3.
In a preferred embodiment, the master control circuit is provided with a main power output and a master ignition switch KM7,
the first end of the master control ignition switch KM7 is electrically connected with the main power supply output end, the second end of the master control ignition switch KM7 is electrically connected with the first end of a power supply switch Q1, and the second end of the power supply switch Q1 is electrically connected with the first power supply input end, the second power supply input end and the third power supply input end respectively to form a double-control switch branch;
the low-voltage ignition control circuit is provided with a low-voltage control transformer, an ignition switch SA1, a relay coil KM1 and a time relay coil KT1, the input end of the low-voltage control transformer is arranged as a third power supply input end, the first end of the ignition switch SA1 is electrically connected with the output end of the low-voltage control transformer, and the second end of the ignition switch SA1 is electrically connected with the relay coil KM1 and the time relay coil KT1 respectively; the output voltage of the output end of the low-voltage control transformer is set to be 12-36V of direct current voltage, and preferably, the output voltage of the output end of the low-voltage control transformer is set to be 24V of direct current voltage.
A first switch KM1 is connected in series in the low-voltage ignition power supply circuit, and the first switch KM1 is closed and conducted when the relay coil KM1 is electrified;
a high-voltage ignition delay conduction switch KT1 is connected in series in the high-voltage ignition power supply circuit, and the high-voltage ignition delay conduction switch KT1 is in delay closing conduction when the time relay coil KT1 is electrified.
The utility model discloses a concrete ignition process is:
first, the main ignition switch KM7 installed in the main cabinet 1 is closed to supply the main power.
Secondly, a power switch Q1 arranged on the double-voltage ignition control box 4 is closed again to provide power for the electric control double-voltage ignition circuit, a power indicator lamp H1 is electrified to emit light, and a power indicator lamp H1 is lightened, at the moment, the low-voltage control transformer is electrified to work, the low-voltage ignition power supply circuit is disconnected and is not electrified, and the high-voltage ignition power supply circuit is disconnected and is not electrified.
The low-voltage control transformer T1 gets electricity and outputs 110V alternating current power supply, after the 110V alternating current power supply is rectified through a rectifier bridge V1, the rectifier bridge V1 adopts a rectifier bridge of ASEMI company, the model is 36MB-120A, filtering is carried out through an RC filter circuit consisting of a resistor R3, a resistor R4, a capacitor C1 and a capacitor C2, then the direct current power supply with the voltage value of 90V is output, and finally the direct current power supply is loaded on a main contact of a first switch KM 1.
Thirdly, finally, the ignition switch SA1 is closed, after the ignition switch SA1 is conducted, the relay coil KM1 is electrified, the first switch KM1 is conducted immediately, the low-voltage ignition power supply circuit is conducted to work immediately, and first, a direct-current voltage with the voltage value of 90V is applied to the plasma spraying spray gun 3 through the low-voltage ignition power supply circuit to serve as a low-voltage ignition voltage; meanwhile, the time relay coil KT1 is electrified to enable the high-voltage ignition delay conduction switch KT1 to be conducted in a delay mode, the high-voltage ignition power supply circuit is conducted in a delay mode, a direct-current voltage with the voltage value of 8-10KV is applied to the plasma spraying spray gun 3 in a delay mode to serve as a high-voltage ignition voltage, the high-voltage ignition voltage and the low-voltage ignition voltage are superposed to act on the plasma spraying gun 3, the plasma spraying gun 3 is enabled to ignite smoothly, the ignition stability is improved, meanwhile, the generation of electric arcs and ignition gaps is reduced, namely, the electric arcs and sparks generated during ignition are eliminated, and the fault rate is.
In a preferred embodiment, a low-voltage ignition transformer T1 is arranged in the low-voltage ignition power supply circuit, the low-voltage ignition transformer T1 is a single-phase 1000 watt low-voltage control transformer produced by shenzhen jixin long, an input end of the low-voltage ignition transformer T1 is set as a first power supply input end, an output end of the low-voltage ignition transformer T1 is electrically connected with a first end of a first switch KM1, a second end of the first switch KM1 is electrically connected with a gun ignition power plug, an output voltage of an output end of the low-voltage ignition transformer T1 is set to be 80-100V, and preferably, an output voltage of an output end of the low-voltage ignition transformer T1 is set to be 90V.
In a preferred embodiment, a high-voltage ignition transformer T2 is arranged in the high-voltage ignition power supply circuit, a first end of a high-voltage ignition delay conducting switch KT1 is arranged as a second power supply input end, a second end of a high-voltage ignition delay conducting switch KT1 is electrically connected with an input end of a high-voltage ignition transformer T2, an output end of the high-voltage ignition transformer T2 is electrically connected with a spray gun ignition plug, and an output voltage of an output end of a high-voltage ignition transformer T2 is set to be a direct-current voltage of 8-10 KV. The high-voltage ignition transformer T2 adopts a packaged electronic high-voltage pack, and the high-voltage ignition transformer T2 specifically adopts a 10KV ignition high-voltage pack model XT-10 produced by Shanghai Huanhie thermal energy equipment Limited company for generating high voltage and igniting, so that the original mechanical ignition gap is replaced, the equipment maintenance is convenient, and the safety performance of the equipment is improved.
After the ignition switch SA1 is pressed, the packaged electronic high-voltage package generates 8KV to 10KV high-voltage electricity, the negative electrode is input to the cathode of the plasma spraying spray gun 3 through a water cable, the positive electrode is directly connected to an ignition copper needle in the plasma spraying spray gun 3, and discharge is carried out between the ignition copper needle and the cathode of the plasma spraying spray gun 3. If argon gas passes through the plasma spraying gun, the argon gas is ionized, the plasma spraying gun 3 is ignited, and the ignition process of the plasma spraying gun 3 is realized.
The dual-voltage ignition control box 4 is provided with a control panel 5, and the control panel 5 is provided with an ignition switch SA1, a power switch Q1, a power indicator lamp H1, an operation indicator lamp H2 and an ignition indicator lamp H3; and the output end of the low-voltage control transformer is connected in parallel with an ignition control branch circuit, a power indicator lamp H1, an operation indication branch circuit and an ignition indication branch circuit.
For the specific implementation mode of the ignition control branch, the ignition control branch is provided with an ignition switch SA1, a relay coil KM1, a time relay coil KT1 and a relay coil KA5, the relay coil KM1, the time relay coil KT1 and the relay coil KA5 are connected in parallel to form a relay coil branch, the ignition switch SA1 and the relay coil branch are connected in series to form an ignition control branch, when the ignition switch SA1 is switched on, the ignition control branch is electrically switched on, and meanwhile, a power indicator lamp H1 is electrified to emit light.
The operation indication branch is provided with a second switch KM1 and an operation indication lamp H2, the second switch KM1 and the operation indication lamp H2 are connected in series to form an operation indication branch, when the relay coil KM1 is electrified, the first switch KM1 and the second switch KM1 are respectively closed and conducted, the operation indication branch is electrically conducted, and the operation indication lamp H2 is electrified and emits light.
Ignition indication branch road is provided with ignition indicator switch KA5 and ignition indicator lamp H3, and ignition indicator switch KA5 establishes ties with ignition indicator lamp H3 and forms an ignition indication branch road, and ignition indicator switch KA5 closed switches on when relay coil KA5 gets the electricity, and ignition indication branch road electrical property switches on, and ignition indicator lamp H3 circular telegram is luminous.
Firstly, a relay coil KM7 coil of a main control cabinet 1 is controlled to be electrified, a normally open contact of a main control ignition switch KM7 is closed, so that coils of a relay coil KM1, a time relay coil KT1 and a relay coil KA5 in a double-voltage ignition control box 4 are electrified, a normally open auxiliary contact of a second switch KM1 is closed, an operation indicator lamp H2 is electrified and lightened, meanwhile, the normally open main contact of a first switch KM1 is closed, and direct current with the voltage value of 90V is added to a cathode of a plasma spraying gun 3 and an ignition copper needle in the plasma spraying gun 3; after the relay coil KA5 is electrified, the normally open contact of the ignition indicator switch KA5 is closed, so that the ignition indicator lamp H3 is electrified and lightened; after the time relay coil KT1 is electrified and 0.1-10 seconds of delay, the contact of the high-voltage ignition delay conduction switch KT1 is closed, so that the high-voltage ignition transformer T2 is electrified, the high-voltage ignition transformer T2 generates 8-10kV high voltage electricity after being electrified and is simultaneously added on the cathode of the plasma spraying spray gun 3 and an ignition copper needle in the plasma spraying spray gun 3, the cathode of the plasma spraying spray gun 3 and the ignition copper needle in the plasma spraying spray gun 3 are subjected to high-voltage discharge, argon between the cathode and the anode of the plasma spraying spray gun 3 is ionized, the plasma spraying gun 3 is ignited, and the ignition process of the plasma spraying gun 3 is realized.
After a period of time, the relay coil KM7 of the main control cabinet 1 loses power, the normally open contact of the main control ignition switch KM7 is disconnected, so that the coils of the relay coil KM1, the time relay coil KT1 and the relay coil KA5 in the dual-voltage ignition control box 4 lose power, after the coils of the relay coil KM1, the time relay coil KT1 and the relay coil KA5 lose power, the operation indicator lamp H2 and the ignition indicator lamp H3 lose power and extinguish, meanwhile, high voltage added to the cathode of the plasma spraying spray gun 3 and an ignition copper needle in the plasma spraying gun 3 is disconnected, and ignition is finished.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (10)
1. The utility model provides an automatic ignition of plasma spraying equipment, includes main control cabinet (1), installs in main control circuit, keysets (2) of main control cabinet (1), installs in the switching device of keysets (2) and installs in plasma spraying equipment's plasma spraying spray gun (3), its characterized in that: the plasma spraying device comprises a double-voltage ignition control box (4) independent of a main control cabinet (1) and a transfer box (2), wherein the double-voltage ignition control box (4) is provided with an electric control double-voltage ignition circuit, the main control circuit is electrically connected with the electric control double-voltage ignition circuit and/or the transfer device through cables respectively, the double-voltage ignition circuit is electrically connected with the transfer device, and the transfer device is electrically connected with a plasma spraying spray gun (3).
2. An automatic ignition device of a plasma spray apparatus as set forth in claim 1, characterized in that: the electric control dual-voltage ignition circuit is provided with a power switch Q1, a low-voltage ignition power supply circuit, a high-voltage ignition power supply circuit and a low-voltage ignition control circuit;
the low-voltage ignition power supply circuit is provided with a first power supply input end and a low-voltage ignition power supply end,
the high-voltage ignition power supply circuit is provided with a second power supply input end and a high-voltage ignition power supply end,
the low-voltage ignition control circuit is provided with a third power supply input end and a controller which respectively switches on or off the corresponding low-voltage ignition power supply circuit and the corresponding high-voltage ignition power supply circuit after receiving a switching signal;
the first end of the power switch Q1 is electrically connected to the main control circuit, the second end is electrically connected to the first power input end, the second power input end and the third power input end respectively,
the low-voltage ignition power supply end and the high-voltage ignition power supply end are respectively and electrically connected with the switching device or the plasma spraying spray gun (3).
3. An automatic ignition device of a plasma spray apparatus as set forth in claim 2, characterized in that: the switching device comprises an ignition positive cable interface and an ignition negative cable interface which are arranged in the switching box (2), the high-voltage ignition power supply end is provided with a high-voltage positive electrode and a high-voltage negative electrode, the low-voltage ignition power supply end is provided with a low-voltage positive electrode and a low-voltage negative electrode, the high-voltage positive electrode and the low-voltage positive electrode are respectively and electrically connected with the ignition positive cable interface, the high-voltage negative electrode and the low-voltage negative electrode are respectively and electrically connected with the ignition negative cable interface, the plasma spraying spray gun (3) is provided with a spray gun ignition plug, and the spray gun ignition plug is respectively and electrically connected with the.
4. An automatic ignition device of a plasma spraying apparatus according to claim 2 or 3, characterized in that: the main control circuit is provided with a main power supply output end and a main control ignition switch KM7,
the first end of the master control ignition switch KM7 is electrically connected with the main power supply output end, the second end of the master control ignition switch KM7 is electrically connected with the first end of the power supply switch Q1, and the second end of the power supply switch Q1 is electrically connected with the first power supply input end, the second power supply input end and the third power supply input end respectively to form a double-control switch branch;
the low-voltage ignition control circuit is provided with a low-voltage control transformer, an ignition switch SA1, a relay coil KM1 and a time relay coil KT1,
the input end of the low-voltage control transformer is set as the third power supply input end, the first end of the ignition switch SA1 is electrically connected with the output end of the low-voltage control transformer, and the second end of the ignition switch SA1 is electrically connected with the relay coil KM1 and the time relay coil KT1 respectively;
the first switch KM1 is connected in series in the low-voltage ignition power supply circuit, and the first switch KM1 is closed and conducted when the relay coil KM1 is electrified;
a high-voltage ignition delay conduction switch KT1 is connected in series in the high-voltage ignition power supply circuit, and the high-voltage ignition delay conduction switch KT1 is in delay closing conduction when the time relay coil KT1 is electrified;
after the ignition switch SA1 is conducted, the low-voltage ignition power supply circuit is conducted instantly, and the high-voltage ignition power supply circuit is conducted in a delayed mode.
5. An automatic ignition device of a plasma spraying apparatus according to claim 4, characterized in that: the plasma spraying spray gun (3) is provided with a spray gun ignition plug; the low-voltage ignition power supply circuit is internally provided with a low-voltage ignition transformer T1, the input end of a low-voltage ignition transformer T1 is set as the first power supply input end, the output end of a low-voltage ignition transformer T1 is electrically connected with the first end of a first switch KM1, and the second end of the first switch KM1 is electrically connected with a spray gun ignition power plug.
6. An automatic ignition device of a plasma spraying apparatus according to claim 5, characterized in that: be provided with a high-pressure ignition transformer T2 in the high pressure ignition power supply circuit, the first end that high pressure ignition time delay switches on switch KT1 sets to second power input end, high pressure ignition time delay switches on switch KT 1's second end electricity and connects high-pressure ignition transformer T2's input, and high-pressure ignition transformer T2's output electricity is connected the spray gun ignition plug.
7. An automatic ignition device of a plasma spray apparatus as set forth in claim 6, characterized in that: the output voltage of the output end of the low-voltage ignition transformer T1 is set to be 80-100V DC voltage, the output voltage of the output end of the high-voltage ignition transformer T2 is set to be 8-10KV DC voltage, and the output voltage of the output end of the low-voltage control transformer is set to be 12-36V DC voltage.
8. An automatic ignition device of a plasma spray apparatus as set forth in claim 6, characterized in that: the double-voltage ignition control box (4) is provided with a control panel (5), and the ignition switch SA1, the power switch Q1, the power indicator lamp H1, the operation indicator lamp H2 and the ignition indicator lamp H3 are installed on the control panel (5); and the output end of the low-voltage control transformer is connected with an ignition control branch circuit, a power indicator lamp H1, an operation indication branch circuit and an ignition indication branch circuit in parallel.
9. An automatic ignition device of a plasma spray apparatus as claimed in claim 8, characterized in that: the ignition control branch is provided with the ignition switch SA1, the relay coil KM1, the time relay coil KT1 and the relay coil KA5,
the relay coil KM1, the time relay coil KT1 and the relay coil KA5 are connected in parallel to form a relay coil branch, the ignition switch SA1 and the relay coil branch are connected in series to form an ignition control branch, and when the ignition switch SA1 is switched on, the ignition control branch is electrically switched on;
the operation indication branch is provided with a second switch KM1 and an operation indication lamp H2, the second switch KM1 and the operation indication lamp H2 are connected in series to form an operation indication branch, when the relay coil KM1 is electrified, the first switch KM1 and the second switch KM1 are respectively closed and conducted, and the operation indication branch is electrically conducted;
ignition indication branch road be provided with ignition indication switch KA5 with ignition pilot lamp H3, ignition indication switch KA5 and ignition pilot lamp H3 establish ties and form an ignition indication branch road, and ignition indication switch KA5 closed switches on when relay coil KA5 gets the electricity, and ignition indication branch road electrical property switches on.
10. An automatic ignition device of a plasma spray apparatus as claimed in claim 9, characterized in that: the high-voltage ignition transformer T2 adopts a packaged electronic high-voltage package, the plasma spraying spray gun (3) is provided with an ignition copper needle serving as a cathode and arranged inside the plasma spraying spray gun (3), the ignition copper needle serves as an anode, the cathode of the plasma spraying spray gun (3) is connected with a water cable, the cathode of the high-voltage ignition transformer T2 is connected with the cathode of the plasma spraying spray gun (3) through the water cable, and the anode of the high-voltage ignition transformer T2 is directly electrically connected to the ignition copper needle in the plasma spraying spray gun (3) so as to realize discharge between the ignition copper needle and the cathode of the plasma spraying spray gun (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920634675.XU CN209941077U (en) | 2019-05-06 | 2019-05-06 | Automatic ignition device of plasma spraying equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920634675.XU CN209941077U (en) | 2019-05-06 | 2019-05-06 | Automatic ignition device of plasma spraying equipment |
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| CN209941077U true CN209941077U (en) | 2020-01-14 |
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| CN (1) | CN209941077U (en) |
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