CN211982175U - Portable metal heater - Google Patents
Portable metal heater Download PDFInfo
- Publication number
- CN211982175U CN211982175U CN202020953484.2U CN202020953484U CN211982175U CN 211982175 U CN211982175 U CN 211982175U CN 202020953484 U CN202020953484 U CN 202020953484U CN 211982175 U CN211982175 U CN 211982175U
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- output coil
- box
- electrical control
- filter capacitor
- output
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Abstract
The utility model relates to an examine maintenance operation instrument specifically is portable metal heater. Portable metal heater, including the handle, electrical control box and output coil box, the handle sets up in electrical control box one side, output coil box sets up in electrical control box's opposite side, be equipped with output coil control circuit in the electrical control box, be provided with output coil in the output coil box, output coil control circuit includes the rectifier bridge, the output of rectifier bridge is connected with filter capacitor, filter capacitor's one end and output coil's one end are connected, output coil's the other end passes through gate pipe joint filter capacitor's the other end. The utility model discloses an utilize the electromagnetic induction principle to examine repair tools with electric energy conversion for heat energy, made things convenient for and examined the maintenance operation, shortened the operation process, improved and examined maintenance work efficiency, easy operation, it is effectual.
Description
Technical Field
The utility model relates to an examine maintenance operation instrument specifically is portable metal heater.
Background
In the inspection and maintenance operation, large bearings, couplers and the like can be smoothly installed in place after being heated during installation, and the conventional method is to put the bearings, the couplers and the like into an oven for baking or convey heavy gas welding equipment to a field for baking and heating; in addition, the pipelines and valves are often frozen in winter, the traditional treatment method is local hot water pouring or baking with fire, the time and labor are wasted during treatment, the environment is polluted, and the effect is poor.
Disclosure of Invention
The utility model discloses a solve major possession bearing, shaft coupling heating difficulty and pipeline, valve and freeze the problem of the back difficulty of unfreezing winter, provide portable metal heater.
The utility model discloses an adopt following technical scheme to realize: portable metal heater, including the handle, electrical control box and output coil box, the handle sets up in electrical control box one side, output coil box sets up in electrical control box's opposite side, be equipped with output coil control circuit in the electrical control box, be provided with output coil in the output coil box, output coil control circuit includes the rectifier bridge, the output of rectifier bridge is connected with filter capacitor, filter capacitor's one end and output coil's one end are connected, output coil's the other end passes through gate pipe joint filter capacitor's the other end.
When the electromagnetic heating device is used, the handle is held by hand, the output coil box is attached to a metal object to be heated, after the electromagnetic heating device is connected with electricity, the 220V alternating current voltage of 50Hz is converted into pulsating direct current voltage by the rectifier bridge inside the control circuit, the pulsating direct current voltage is filtered by the filter capacitor and converted into high-frequency voltage (for example, the high-level voltage frequency can be 20 KHz-40 KHz) by the gate control tube, the high-speed changing current flows through the output coil to generate a high-speed changing magnetic field (electric magnetism), when the magnetic force line in the magnetic field passes through the bottom of the metal object (magnetic conduction and conductive material), a large amount of strong eddy current (magnetic electricity) is generated in the metal object, and when the eddy current is blocked by the material resistance, a large amount of heat (electric heat).
In the portable metal heater, a choke coil is further connected between the positive output end of the rectifier bridge and one end of the filter capacitor.
In the portable metal heater, the two ends of the output coil are also connected with the resonant capacitor in parallel.
In the portable metal heater, the gate control tube is selected to be the IGBT.
The utility model discloses an utilize the electromagnetic induction principle to examine repair tools with electric energy conversion for heat energy, made things convenient for and examined the maintenance operation, shortened the operation process, improved and examined maintenance work efficiency, easy operation, it is effectual. When a fault occurs in a chemical production enterprise, the fault must be treated as soon as possible, the treatment is not timely, great loss is caused, the device can not calculate the obtained benefit when being used as a maintenance device, and the problem can be treated as soon as possible, so that great benefit can be brought to the enterprise.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic circuit diagram of the present invention.
Detailed Description
Portable metal heater, including the handle, electrical control box and output coil box, the handle sets up in electrical control box one side, output coil box sets up in electrical control box's opposite side, be equipped with output coil control circuit in the electrical control box, be provided with output coil in the output coil box, output coil control circuit includes the rectifier bridge, the output of rectifier bridge is connected with filter capacitor C, filter capacitor C's one end and output coil's one end are connected, output coil's the other end passes through gate pipe connector filter capacitor's the other end.
In the portable metal heater, a choke coil L is further connected between the positive output end of the rectifier bridge and one end of the filter capacitor.
In the portable metal heater, the two ends of the output coil are also connected in parallel with a resonant capacitor C0.
In the portable metal heater, the gate control tube is selected to be an IGBT, and a PWM signal of the IGBT can be provided by a PWM generator.
Claims (4)
1. Portable metal heater, its characterized in that includes the handle, electrical control box and output coil box, the handle sets up in electrical control box one side, the output coil box sets up in electrical control box's opposite side, be equipped with output coil control circuit in the electrical control box, be provided with output coil in the output coil box, output coil control circuit includes the rectifier bridge, the output of rectifier bridge is connected with filter capacitor C, filter capacitor C's one end and output coil's one end are connected, output coil's the other end passes through gate pipe connector filter capacitor's the other end.
2. The portable metal heater of claim 1, wherein a choke L is further connected between the positive output terminal of the rectifier bridge and one terminal of the filter capacitor.
3. The portable metal heater of claim 2, wherein a resonant capacitor C0 is connected in parallel across the output coil.
4. The portable metal heater according to claim 1, 2 or 3, wherein the gate tube is selected to be an IGBT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020953484.2U CN211982175U (en) | 2020-05-30 | 2020-05-30 | Portable metal heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020953484.2U CN211982175U (en) | 2020-05-30 | 2020-05-30 | Portable metal heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211982175U true CN211982175U (en) | 2020-11-20 |
Family
ID=73370060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020953484.2U Active CN211982175U (en) | 2020-05-30 | 2020-05-30 | Portable metal heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211982175U (en) |
-
2020
- 2020-05-30 CN CN202020953484.2U patent/CN211982175U/en active Active
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