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Temperature balanced electric heating furnace based on multi-area temperature control

A temperature control, electric heating furnace technology, applied in electric furnace heating, furnace heating elements, lighting and heating equipment, etc., can solve problems such as uneven temperature in the furnace cavity, and achieve the effect of eliminating overshoot and large fluctuations

Inactive Publication Date: 2016-12-07
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of uneven temperature in the furnace cavity during the heating process of the traditional electric heating furnace, the present invention provides an electric heating furnace with temperature balance based on multi-zone temperature control

Method used

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  • Temperature balanced electric heating furnace based on multi-area temperature control

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specific Embodiment approach 1

[0014] Specific implementation mode one: combine figure 1 Describe this embodiment mode, a temperature balanced electric heating furnace based on multi-zone temperature control described in this embodiment mode, it includes rear zone electric heating wire 1, middle zone electric heating wire 2, front zone electric heating wire 3, heat preservation Filler 4, furnace wall 5, rotating shaft 6, furnace mouth 7, furnace door 8, furnace cavity 9, furnace hearth 10, front zone thermocouple 12, middle zone thermocouple 13, rear zone thermocouple 14, temperature regulator 15.

specific Embodiment approach 2

[0015] Specific implementation mode two: combination figure 1 This embodiment is described. The difference between this embodiment and the first embodiment is that the furnace 10 is installed inside the furnace wall 5, and the furnace 10 and the furnace wall 5 are filled with the Insulation filling 4, the furnace mouth 7 is opened on the right side of the furnace 10 and the furnace wall 5, the furnace door 8 is installed on the right side of the furnace mouth 7, the The electric heating wire 1 in the rear area, the electric heating wire 2 in the middle area and the electric heating wire 3 in the front area are all installed in the reserved holes of the furnace 10, and are heated by heating up and down. The thermocouple in the front area The working end of 12 is positioned at the front zone center of described oven chamber 9, and the working end of described middle zone thermocouple 13 is positioned at the middle zone center of described furnace cavity 9, and the working end of...

specific Embodiment approach 3

[0016] Specific implementation mode three: combination figure 1 This embodiment is described. The difference between this embodiment and the specific embodiment 1 or 2 is that the furnace door 8 is fixed on the furnace wall 5 through the rotating shaft 6 and adopts a side door opening. Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a temperature balanced electric heating furnace based on multi-area temperature control and belongs to the field of electric heating furnaces. The problem that temperature in a furnace cavity of a traditional electric heating furnace is uneven in the heating process is solved. The temperature balanced electric heating furnace based on multi-area temperature control is composed of a rear area electric heating wire, a middle area electric heating wire, a front area electric heating wire, heat preservation filler, a furnace wall, a rotary shaft, a furnace opening, a furnace door, a furnace cavity, a furnace hearth, a liftable supporting board device, a front area thermocouple, a middle area thermocouple, a rear area thermocouple and a temperature adjuster. The temperature adjuster further comprises a thermocouple signal conditioning unit, an A / D conversion unit, a computer, an output isolation module, a controllable silicon controller, an alternating current power supply and an alarm device. The effect that the temperature of the electric heating furnace is balanced within + / -4 DEG C can be guaranteed.

Description

technical field [0001] The invention belongs to the field of electric heating furnaces, and in particular relates to an electric heating furnace with temperature balance based on multi-zone temperature control. Background technique [0002] The electric heating furnace is a common heating equipment that is heated by electricity. Generally, a simple on-off switch is used to control the temperature. However, since there is only one temperature sensor in the furnace chamber, the reaction to temperature changes is relatively slow. In addition, the heating element rarely adopts multi-stage type, but single-stage type. In this way, the heating element is either in the state of power-on heating up, or in the state of power-off cooling, coupled with the characteristics of electric heating furnace temperature diffusion hysteresis, Therefore, it is difficult to ensure the uniformity of the temperature in the furnace cavity, and it is also difficult to adapt to the occasions where the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D11/02F27D21/00H05B3/62
CPCF27D11/02F27D21/0014H05B3/62
Inventor 石德全高桂丽康凯娇陈志俊许家勋王傲王俊博
Owner HARBIN UNIV OF SCI & TECH
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