Heating slot with embedded electric heating pipe

内嵌电加热管的加热槽

Abstract

一种内嵌电加热管的加热槽,可以用于加热浓硫酸至高温,属于一般有热发生装置的流体加热器。高温浓硫酸具有极强的腐蚀性,若将电加热器放入加热槽内直接接触浓硫酸,电加热器的造价较高;若采用外置电加热器,则电加热器和加热槽间的热传导率较低,其结构通常也比较复杂。本发明所要解决的问题是:提供一种热传导率高、造价低、加热槽内没有电加热器的加热槽。本发明的技术方案是:在加热槽的底部、侧壁上设置若干横截面与电加热管横截面一致的孔,把电加热管直接放入上述孔中,给加热槽加热。与现有技术相比,本发明的有益效果是:提高了电加热管与加热槽间的热传导率,简化了加热槽的结构,同时减小了加热槽组件的尺寸。
The invention discloses a heating slot with an embedded electric heating pipe, which can be used for heating concentrated sulphuric acid to a high temperature, and belongs to a common fluid heater with a heat generating device. The high-temperature concentrated sulphuric acid has strong corrosivity, in case that an electric heater is put into the heating slot to be directly contacted with the concentrated sulphuric acid, the manufacturing cost of the electric heater is high; and in case of adopting an external electric heater, the thermal conductivity between the electric heater and the heating slot is low, and the structure of the heating slot is usually complex. The problem to be solved in the invention is to provide a heating slot which has high thermal conductivity, low manufacturing cost, and no electric heater arranged in the heating slot. The technical scheme of the invention is that: the bottom and side walls of the heating slot are provided with a plurality of holes of which the sections are consistent with that of the electric heating pipe, and the electric heating pipe is directly put into the holes to heat the heating slot. Compared with the prior art, the invention has the advantages of improving the thermal conductivity between the electric heater and the heating slot, simplifying the structure of the heating slot, and reducing the size of the component of the heating slot.

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Patent Citations (2)

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    CN-2126400-UDecember 30, 1992冶金工业部金属制品研究院钢丝表面酸浸检验用加热炉
    US-2009007659-A1January 08, 2009Wei-Ting HuangContainer with functions of level, crud and temperature detections

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