WO2019056646A1 - 一种电热合金件 - Google Patents

一种电热合金件 Download PDF

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Publication number
WO2019056646A1
WO2019056646A1 PCT/CN2017/119778 CN2017119778W WO2019056646A1 WO 2019056646 A1 WO2019056646 A1 WO 2019056646A1 CN 2017119778 W CN2017119778 W CN 2017119778W WO 2019056646 A1 WO2019056646 A1 WO 2019056646A1
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WO
WIPO (PCT)
Prior art keywords
electric heating
electrothermal alloy
alloy member
heating belt
thermocouple
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PCT/CN2017/119778
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English (en)
French (fr)
Inventor
郭小芳
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盐城市鑫洋电热材料有限公司
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Publication of WO2019056646A1 publication Critical patent/WO2019056646A1/zh

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/02—Details

Definitions

  • the present disclosure relates to an electric heating device, and in particular to an electrothermal alloy member.
  • the first type of iron, chromium and aluminum electric heating wire has high temperature and high temperature oxidation corrosion resistance and low temperature strength; the second nickel and chromium electric heating wire has high temperature oxidation corrosion resistance and high temperature strength, and neither of them can meet the requirements of heating wire. , limits the use of heating wire.
  • those skilled in the art need to provide an electrothermal alloy member to improve the high temperature resistance of the existing electrothermal alloy member, and at the same time prevent the electrothermal alloy member from shortening the life of the electrothermal alloy member due to the excessive internal temperature, and prolong the electrothermal alloy member. The service life.
  • the purpose of the present disclosure is to provide an electrothermal alloy member, which improves the high temperature resistance of the existing electrothermal alloy member, and at the same time prevents the electrothermal alloy member from shortening the life of the electrothermal alloy member due to the excessive internal temperature, and prolongs the service life of the electrothermal alloy member.
  • the present disclosure provides an electrothermal alloy member including a heating cable, an insulating mount, a thermocouple, and a relay, the outer surface of which is coated with an anti-oxidation metal layer, the electric
  • the tropics include a plurality of U-shaped bending belts and a take-up belt, and the plurality of U-shaped bending belts are arranged radially outwardly around a center point, and the take-up belts are disposed at the ends of the U-shaped bending belts.
  • An insulating mount for fixing a thermocouple is disposed at a central position of the electric heating belt, and the relay is connected to the thermocouple for controlling cutting or connecting of the electric heating belt and the power source; wherein the insulating mount comprises The fixing post, the blocking piece and the fastening piece have concentric through holes, one end of the fixing post is fixedly connected with the blocking piece, and the other end is used for inserting the fastening piece.
  • the oxidation resistant metal layer is an aluminum oxide layer.
  • the insulating mount is made of quartz.
  • the insulating mount is provided with a plurality of heat dissipation through holes.
  • the U-shaped bending belt and the take-up belt are an integrally formed structure.
  • the electric heating belt is a nickel-chromium electric heating belt or an iron-chromium-aluminum electric heating belt.
  • the relay is connected to the thermocouple by a wire.
  • the electric heating structure in the present disclosure has the advantages of uniform heating, high temperature resistance, small volume, high power, etc.
  • the electric heating belt is coated with an anti-oxidation metal layer to avoid heating the electric heating belt for a long time. Oxidation occurs, resulting in low electrothermal conversion efficiency, improving the high temperature resistance of the electrothermal alloy parts.
  • the thermocouple is fixed at the center of the electric heating belt through the insulation mount, and the internal temperature of the electric heating belt is measured to prevent it from exceeding the limit temperature, such as When the heating temperature of the heating cable exceeds the limit temperature, the connection between the heating cable and the power source is cut off by the relay, thereby prolonging the service life of the heating cable.
  • FIG. 1 is a schematic structural view of an electrothermal alloy member in the present disclosure
  • FIG. 2 is a schematic structural view of an insulating mount in the present disclosure.
  • FIG. 1 is a schematic structural view of an electrothermal alloy member in the present disclosure
  • FIG. 2 is a schematic structural view of an insulating mount in the present disclosure.
  • the present disclosure provides an electrothermal alloy member, including a heating cable 10, an insulating mount 20, a thermocouple 30, and a relay.
  • the electric heating belt 10 is a nickel-chromium electric heating belt or an iron-chromium-aluminum electric heating belt. .
  • the electric heating belt 10 in this embodiment includes a plurality of U-shaped bending belts 11 and a take-up belt 12, and a plurality of U-shaped bending belts 11 are arranged radially outwardly around a center point in the circumferential direction, and the take-up belt 12 is disposed at U.
  • the end portion of the bending belt 11, the U-shaped bending belt 11 and the take-up belt 12 are integrally formed.
  • the electric heating belt of the structure not only has high electrothermal conversion efficiency, but also has uniform heating and small space occupation.
  • the outer surface of the electric heating belt 10 in this embodiment is coated with an anti-oxidation metal layer, and the anti-oxidation metal layer is an aluminum oxide layer.
  • the electric heating belt 10 is coated with an anti-oxidation metal layer to avoid oxidation of the electric heating belt 10 after prolonged heating, resulting in low electrothermal conversion efficiency and improved high temperature resistance of the electrothermal alloy parts.
  • an insulating mount 20 for fixing the thermocouple 30 is disposed at a central position of the electric heating belt 10, and the relay is connected with the thermocouple 30 for controlling the cutting or connection of the electric heating belt 10 with the power source; wherein the insulating mount 20 includes fixing The column 21, the blocking piece 22 and the fastening piece 23, the fixing post 21 and the blocking piece 22 have concentric through holes, one end of the fixing post 21 is fixedly connected with the blocking piece 22, and the other end is used for inserting the fastening piece 23;
  • the material of the seat 20 is preferably quartz, and the insulating mount 20 is provided with a plurality of heat dissipation through holes 24.
  • thermocouple 30 is fixed at the center of the electric heating belt 10 through the insulating mount 20, and the internal temperature of the electric heating belt 10 is measured to prevent it from exceeding the limit temperature. If the heating temperature of the electric heating belt exceeds the limit temperature, the electric heating is cut off by the relay. Connect to the power supply to extend the life of the heating cable.

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  • Resistance Heating (AREA)
  • Surface Heating Bodies (AREA)
  • Control Of Resistance Heating (AREA)

Abstract

一种电热合金件，包括电热带、绝缘安装座、热电偶以及继电器，电热带的外表面涂覆有抗氧化金属层，电热带包括多个U形弯折带以及引出带，多个U形弯折带在圆周方向上绕一中心点向外呈放射状排列，引出带设于U形弯折带的端部，电热带的中心位置处设有用于固定热电偶的绝缘安装座，继电器与热电偶连接，用于控制电热带与电源的切断或连接。

Description

一种电热合金件 技术领域
本公开涉及一种电加热装置，具体涉及一种电热合金件。
背景技术
现有技术中，电热合金件有两大类型，一种是铁、铬、铝电热丝，其耐高温氧化腐蚀温度，耐高温氧化腐蚀温度可达到1300℃左右，但是高温强度只有900℃左右，在高温下工作易倒塌而短路过烧；一种是镍、铬电热丝，高温强度可达1350℃，但耐高温氧化腐蚀温度只有1000℃左右，使用寿命很短。第一种铁、铬、铝电热丝耐高温氧化腐蚀温度高，高温强度低；第二种镍、铬电热丝耐高温氧化腐蚀温度低，高温强度高，二者都不能满足电热丝的使用要求，限制了电热丝的使用范围。针对上述缺陷，本领域技术人员亟需提供一种电热合金件，提高现有电热合金件的耐高温性能，同时防止电热合金件因内部温度过高导致电热合金件的寿命缩短，延长电热合金件的使用寿命。
发明内容
本公开的目的是提供一种电热合金件，提高现有电热合金件的耐高温性能，同时防止电热合金件因内部温度过高导致电热合金件的寿命缩短，延长电热合金件的使用寿命。
为实现上述目的，提供如下技术方案：本公开提供一种电热合金件，包括电热带、绝缘安装座、热电偶以及继电器，所述电热带的外表面涂覆有抗氧化金属层，所述电热带包括多个U形弯折带以及引出带，多个U 形弯折带在圆周方向上绕一中心点向外呈放射状排列，所述引出带设于U形弯折带的端部，所述电热带的中心位置处设有用于固定热电偶的绝缘安装座，所述继电器与所述热电偶连接，用于控制所述电热带与电源的切断或连接；其中，所述绝缘安装座包括固定柱、挡片以及紧固片，所述固定柱和挡片具有同心的通孔，所述固定柱的一端与挡片固定连接，另一端用于插接所述紧固片。
优选的，所述抗氧化金属层为氧化铝层。
优选的，所述绝缘安装座的材质为石英。
优选的，所述绝缘安装座上设有若干散热通孔。
优选的，所述U形弯折带以及引出带为一体成型结构。
优选的，所述电热带为镍-铬电热带或铁-铬-铝电热带。
优选的，所述继电器通过导线与所述热电偶连接。
本公开提供一种电热合金件的有益效果为：本公开中电热带结构具有加热均匀、耐高温、体积小、功率大等优点，电热带镀有抗氧化金属层，避免长时间加热后电热带发生氧化，造成电热转换效率低下，提高电热合金件的耐高温性能，同时，将热电偶通过绝缘安装座固定在电热带的中心位置处，测量电热带的内部温度，防止其超过极限温度，如电热带的加温温度超过极限温度，则通过继电器切断电热带和电源的连接，从而延长电热带的使用寿命。
附图说明
为了更清楚地说明本公开实施例中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本公开中电热合金件的结构示意图；
图2为本公开中绝缘安装座的结构示意图。
具体实施方式
为使本公开的内容更加清楚易懂，以下结合说明书附图，对本公开的内容作进一步说明。当然本公开并不局限于该具体实施例，本领域内的技术人员所熟知的一般替换也涵盖在本公开的保护范围内。其次，本公开利用示意图进行了详细的表述，在详述本公开实例时，为了便于说明，示意图不依照一般比例局部放大，不应以此作为对本公开的限定。
上述及其它技术特征和有益效果，将结合实施例及附图对本公开的电热合金件进行详细说明。图1为本公开中电热合金件的结构示意图；图2为本公开中绝缘安装座的结构示意图。
如图1、2所示,本公开提供一种电热合金件，包括电热带10、绝缘安装座20、热电偶30以及继电器，电热带10为镍-铬电热带或铁-铬-铝电热带。
本实施例中的电热带10包括多个U形弯折带11以及引出带12，多个U形弯折带11在圆周方向上绕一中心点向外呈放射状排列，引出带12设于U形弯折带11的端部，U形弯折带11以及引出带12为一体成型结构。该结构的电热带不仅电热转换效率高，而且加热均匀，占用空间小。
具体的，本实施例中的电热带10的外表面涂覆有抗氧化金属层，抗氧化金属层为氧化铝层。通过电热带10镀有抗氧化金属层，避免长时间加热后电热带10发生氧化，造成电热转换效率低下，提高电热合金件的耐高温性能。
同时，电热带10的中心位置处设有用于固定热电偶30的绝缘安装座20，继电器与热电偶30连接，用于控制电热带10与电源的切断或连 接；其中，绝缘安装座20包括固定柱21、挡片22以及紧固片23，固定柱21和挡片22具有同心的通孔，固定柱21的一端与挡片22固定连接，另一端用于插接紧固片23；绝缘安装座20的材质优选为石英，绝缘安装座20上设有若干散热通孔24。将热电偶30通过绝缘安装座20固定在电热带10的中心位置处，测量电热带10的内部温度，防止其超过极限温度，如电热带的加温温度超过极限温度，则通过继电器切断电热带和电源的连接，从而延长电热带的使用寿命。
虽然本公开主要描述了以上实施例，但是只是作为实例来加以描述，而本公开并不限于此。本领域普通技术人员能做出多种变型和应用而不脱离实施例的实质特性。例如，对实施例详示的每个部件都可以修改和运行，与所述变型和应用相关的差异可认为包括在所附权利要求所限定的本公开的保护范围内。
本说明书中所涉及的实施例，其含义是结合该实施例描述的特地特征、结构或特性包括在本公开的至少一个实施例中。说明书中出现于各处的这些术语不一定都涉及同一实施例。此外，当结合任一实施例描述特定特征、结构或特性时，都认为其落入本领域普通技术人员结合其他实施例就可以实现的这些特定特征、结构或特性的范围内。

Claims (7)

  1. 一种电热合金件，其特征在于，包括电热带、绝缘安装座、热电偶以及继电器，所述电热带的外表面涂覆有抗氧化金属层，所述电热带包括多个U形弯折带以及引出带，多个U形弯折带在圆周方向上绕一中心点向外呈放射状排列，所述引出带设于U形弯折带的端部，所述电热带的中心位置处设有用于固定热电偶的绝缘安装座，所述继电器与所述热电偶连接，用于控制所述电热带与电源的切断或连接；
    其中，所述绝缘安装座包括固定柱、挡片以及紧固片，所述固定柱和挡片具有同心的通孔，所述固定柱的一端与挡片固定连接，另一端用于插接所述紧固片。
  2. 根据权利要求1所述的电热合金件，其特征在于，所述抗氧化金属层为氧化铝层。
  3. 根据权利要求1所述的电热合金件，其特征在于，所述绝缘安装座的材质为石英。
  4. 根据权利要求1所述的电热合金件，其特征在于，所述绝缘安装座上设有若干散热通孔。
  5. 根据权利要求1所述的电热合金件，其特征在于，所述U形弯折带以及引出带为一体成型结构。
  6. 根据权利要求1所述的电热合金件，其特征在于，所述电热带为镍-铬电热带或铁-铬-铝电热带。
  7. 根据权利要求1所述的电热合金件，其特征在于，所述继电器通过导线与所述热电偶连接。
PCT/CN2017/119778 2017-09-21 2017-12-29 一种电热合金件 WO2019056646A1 (zh)

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CN109021636A (zh) * 2018-10-09 2018-12-18 盐城市星凯环保科技股份有限公司 一种用于电热合金的高放射率涂层的加工工艺

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