Oil heater and welding method thereof

Abstract

The invention discloses an oil heater. A heating device (2) and a temperature controller (3) are connected to the bottom surface of a tank body (1); a groove (4) is arranged on the bottom surface of the tank body (1); the heating device (2) and the temperature controller (3) are located in the groove (4); a heat conducting plate (5) is arranged between the heating device (2) and the bottom surface of the groove (4); the shape of the heat conducting plate (5) is the same as that of the bottom surface of the groove (4); one plane of the heat conducting plate (5) is completely fitted with the bottom surface of the groove (4); and the heating device (2) and the temperature controller (3) are connected to the other plane of the heat conducting plate (5). The welding method of the oil heater comprises the following steps for welding the heating device (2) and the heat conducting plate (5): 1) preparing base solution and dry powder; 2) applying the base solution; 3) sprinkling the dry powder on the base solution; 4) turning on a soldering machine and preheating a cushion block of the soldering machine; 5) putting the heating device (2) and the heat conducting plate (5) on the cushion block; 6) pressing the heating device (2) and the heat conducting plate (5); and 7) applying gypsum paste. Compared with the prior art, the oil heater disclosed by the invention has the characteristics that the sound is lower during heating and the difference between the temperature measured by the temperature controller and the actual temperature of the oil is smaller.

Description

technical field [0001] The invention belongs to the field of heating equipment, in particular to an oil heater and a welding method thereof. Background technique [0002] At present, the heating devices of the oil heaters in the prior art are all directly welded to the bottom of the tank body. During use, when the heating device starts to heat, the heating device is in partial contact with the bottom surface of the tank body directly. The heat generated by the heating device raises the position where the bottom of the tank body contacts the heating device first, and then spreads to other positions at the bottom of the tank body, which causes the problem that the temperature at the bottom of the tank body is relatively high, which in turn makes the oil in the tank body It will make a loud sound when heating, and the volume generally exceeds 60 decibels; at the same time, there is a large deviation between the temperature measured by the temperature controller and the actual t...

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Problems solved by technology

[0002] At present, the heating devices of the oil heaters in the prior art are all directly welded to the bottom of the tank body. During use, when the heating device starts to heat, the heating device is in partial contact with the bottom surface of the tank body directly, so that The heat generated by the heating device raises the position where the bottom of the tank body contacts the heating device first, and then spreads to other positions at the bottom of the tank body. This has the problem of high temperature at the bottom of the tank body, which in turn makes the oil in the tank body It will make a loud sound when heating, and the volume generally exceeds 60 decibels; at the same time, there is a large deviation between the temperature measured by the temperature controller and the actual temperature of the oil.

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