KR-20260062515-A - HEATER DRIVING APPARATUS USING NITROGEN GAS CIRCULATION

Abstract

A heater driving device using nitrogen gas circulation according to an embodiment of the present invention may include a body portion where heating is performed, a heater driving unit for operating heaters mounted on the body portion, and a control unit for controlling each component for selective driving of the heaters.

Inventors

• 성익현

Assignees

• (주)에이스열처리

Dates

Publication Date

20260507

Application Date

20241029

Claims (6)

1. Body part where heating takes place; A heater driving unit for operating heaters mounted on the body; and A control unit for controlling each configuration for the selective operation of the above heaters; A heater driving device using nitrogen gas circulation characterized by including
2. In paragraph 1, Heat treatment is performed on the first body member and the second body member, and is operated in a high-temperature nitrogen gas atmosphere to prevent oxidation of the heat-treated metal. A heater driving device using nitrogen gas circulation, characterized in that the first body member and the second body member are provided with a high-temperature nitrogen gas circulation path for creating a high-temperature nitrogen gas atmosphere.
3. In paragraph 1, A heater driving device using nitrogen gas circulation, characterized in that the control unit detects the temperature of the preheating section and heat treatment section of the body part, calculates temperature control data for each region according to the currently set heat treatment conditions, calculates blower control data and calculates heater operation data for each region of the body part according to the temperature control data, controls the gas circulation blower, and controls heater driving for each section.
4. In paragraph 1, The above body part is, A first body member in which preheating takes place; and A heater driving device using nitrogen gas circulation characterized by including a second body member on which heat treatment is performed.
5. In paragraph 4, A heater driving device using nitrogen gas circulation, characterized in that the first body member and the second body member are equipped with temperature sensors to measure the internal temperature in real time and send the measurement information to the control unit.
6. In paragraph 4, The first body member and the second body member are equipped with heaters to selectively apply heat to the first body member and the second body member, and The first body member is equipped with a heater as a preheating section, and A heater driving device using nitrogen gas circulation, characterized in that the second body member is a heat treatment section equipped with a plurality of heaters, and the heaters are connected to a heater driving unit so that the heaters are selectively driven by the heater driving unit.

Description

Heater Driving Apparatus Using Nitrogen Gas Circulation The present invention relates to a heater driving device using nitrogen gas circulation, and more specifically, to a heater driving device using nitrogen gas circulation that can improve the heating effect of a heater by preheating through the use of high-temperature nitrogen gas circulation. A conventional waste heat recovery ventilation device is a device that recovers thermal energy or cooling energy from discarded water or air through heat exchange, and may include a heat exchanger and a heater for heat exchange. The heat exchanger induces heat exchange between the outdoor air and the indoor air by bringing the outdoor air circulating through the ventilation system into indirect contact. The heater heats the cold air introduced from the outside to prevent the indoor temperature from dropping suddenly. However, conventional devices had a limitation in that heat exchange was not properly performed, requiring the use of large-capacity heaters. Therefore, there is a need to develop a heater drive system with a new configuration that can improve the heating effect of the heater by properly utilizing waste heat and circulating high-temperature nitrogen gas to achieve efficient heat exchange. Related prior art includes Korean Patent Registration No. 10-0803108 (Title of invention: Waste heat recovery ventilation device for use with small capacity heaters). FIG. 1 is a schematic diagram of a heater driving device using nitrogen gas circulation according to one embodiment of the present invention. Figure 2 is a control flow diagram of the device of Figure 1. The advantages and/or features of the present invention and the methods for achieving them will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but may be implemented in various different forms. These embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. Throughout the specification, the same reference numerals refer to the same components. Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. FIG. 1 is a schematic diagram of a heater driving device using nitrogen gas circulation according to one embodiment of the present invention, and FIG. 2 is a control flow diagram of the device of FIG. 1. As illustrated in these drawings, a heater driving device using nitrogen gas circulation according to one embodiment of the present invention may include a body part where heating takes place, a heater driving part for operating heaters mounted on the body part, and a control part for controlling each component for driving the heater. First, the control unit of the present embodiment detects the temperature of the preheating section and the heat treatment section as shown in FIGS. 1 and 2, calculates temperature control data for each area according to the currently set heat treatment conditions, calculates blower control data according to the temperature control data, and calculates heater operation data for each area of the body part. In addition, the control unit can control the gas circulation blower and control the heater operation for each section. Referring to FIG. 1, the body portion may include a first body member in which preheating is performed and a second body member in which heat treatment is performed. Waste heat can be recovered from such a body portion. In particular, heat treatment is performed on the first body member and the second body member. At this time, to prevent oxidation of the heat-treated metal, it is operated in a high-temperature nitrogen gas atmosphere, and depending on the heat treatment conditions, it is heated to over 500°C, and waste heat can be recovered from this to produce electricity. To elaborate, the first body member and the second body member may be provided with a high-temperature nitrogen gas circulation path for creating a high-temperature nitrogen gas atmosphere. A temperature sensor is installed in the first body member and the second body member to measure the internal temperature in real time and send the measurement information to the control unit. In addition, the temperature sensor is connected to the temperature detection unit, and by sending the measurement information from the temperature detection unit to the control unit, the heater driving unit can be driven by the control unit. Heaters are installed in the first body member and the second body member to apply heat to the first body member and the second body member. Since the first body member is a preheating section, for example, one heater may be installed, and since the second body member is a heat treatment