WO2023226280A1 - 四线可测温电加热及点火装置 - Google Patents

四线可测温电加热及点火装置 Download PDF

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Publication number
WO2023226280A1
WO2023226280A1 PCT/CN2022/125555 CN2022125555W WO2023226280A1 WO 2023226280 A1 WO2023226280 A1 WO 2023226280A1 CN 2022125555 W CN2022125555 W CN 2022125555W WO 2023226280 A1 WO2023226280 A1 WO 2023226280A1
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temperature
heating
housing
temperature measurement
component
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PCT/CN2022/125555
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English (en)
French (fr)
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雷彼得
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重庆利迈科技有限公司
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Priority to CA3233257A priority Critical patent/CA3233257A1/en
Priority to KR1020247009509A priority patent/KR20240052792A/ko
Publication of WO2023226280A1 publication Critical patent/WO2023226280A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q7/00—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q7/00—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs
    • F23Q7/22—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2207/00—Ignition devices associated with burner
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q7/00—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs
    • F23Q7/001—Glowing plugs for internal-combustion engines
    • F23Q2007/004—Manufacturing or assembling methods
    • F23Q2007/008—Manufacturing or assembling methods temperature sensors

Definitions

  • the utility model relates to the technical field of electric heating/ignition devices, specifically a four-wire temperature-measurable electric heating and ignition device.
  • Combustion equipment refers to equipment that ignites fuel and converts its chemical energy into heat energy to release it. At present, most green new energy combustion equipment uses fuels such as methanol or LNG for combustion. During the use of combustion equipment, high-temperature hot surface elements can also be used for direct ignition. However, when using the above ignition technology, due to large changes in ambient temperature, gas flow rate, fuel/air temperature, etc., ignition failures are prone to occur and normal combustion cannot occur, thus affecting the normal operation of the combustion equipment.
  • the utility model is intended to provide a four-wire temperature-measurable electric heating and ignition device to solve the problem that the high-temperature hot surface elements used in existing combustion equipment are prone to ignition failures during use, resulting in the combustion equipment not working properly.
  • the basic solution provided by the utility model is: a four-wire temperature-measurable electric heating and ignition device, including a shell and a heating component with a self-temperature measuring function; the heating component is located in the housing, and the heating component extends out of the heating end of the housing.
  • the temperature measuring end of the body is also provided with a temperature measuring component, and the temperature measuring end of the temperature measuring component extends out of the temperature measuring end of the shell.
  • a heating component with a self-temperature measurement function is used as the heating core of the electric heating device, and a temperature measurement component extending out of the shell is also used as an auxiliary temperature measurement at the cold end (temperature measurement end).
  • auxiliary temperature measurement This method can compensate for the temperature measurement error caused by the unstable external environment, and cooperate with the temperature control system to ensure timely correction when the cold end temperature changes, thus improving the heating/ignition reliability of the electric heating device and ensuring the normal use of the combustion device.
  • thermocouple wire is used as the temperature measurement component, and the structure is simple.
  • the temperature measuring component is a metal thermocouple wire.
  • the heating component includes a temperature-measurable heating element.
  • temperature-measurable heating components are used as heating components, which can improve the temperature control response speed and service life, and achieve the thermocouple temperature measurement function through its own material distribution, with a simple structure.
  • the heating component further includes two electrodes, and the electrodes are connected with electrode leads extending out of the housing.
  • the electrode and the electrode lead lead the power terminal out of the housing, thereby facilitating the supply of power to the heating component outside the housing.
  • the housing is a metal housing or a ceramic housing.
  • Figure 1 is a schematic diagram of an embodiment of the utility model's four-wire temperature-measurable electric heating and ignition device.
  • the reference numbers in the drawings of the description include: temperature-measurable heating element 1, center electrode 2, side electrode 3, housing 4, center electrode lead 5, temperature measuring component 6, and side electrode lead 7.
  • the embodiment is basically as shown in Figure 1: a four-wire temperature-measurable electric heating and ignition device, including a shell 4 and a heating component with a self-temperature measuring function; in this embodiment, the shell 4 is a metal shell or ceramic, etc.
  • the material shell is a metal shell in this embodiment.
  • the left end of the shell 4 is the heating end and the right end is the temperature measurement end, which is the cold end of the electric heating device.
  • the heating component is located in the housing 4, and the heating component extends out of the heating end of the housing 4.
  • the heating component includes a temperature-measurable heating element 1, and a temperature-measurable heating element 1
  • the thermocouple temperature measurement function is achieved through its own material distribution.
  • the temperature-measurable heating element 1 is a silicon nitride all-ceramic heating element.
  • the heating component also includes two electrodes.
  • the electrodes are connected with electrode leads extending out of the housing.
  • the two electrodes include a center electrode 2 and a side electrode 3.
  • the center electrode 2 is connected with an electrode lead extending out of the housing 4.
  • the center electrode lead 5 and the side electrodes 3 are connected to side electrode leads 7 extending out of the housing 4 .
  • the center electrode 2 has the functions of both electrical conduction and the positive electrode of the electric heating device
  • the side electrode 3 has the functions of both electrical conduction and the negative electrode of the temperature-measuring thermocouple.
  • the temperature measuring end of the housing 4 is also provided with a temperature measuring component 6, and the temperature measuring end of the temperature measuring component 6 extends out of the temperature measuring end of the housing 4.
  • the temperature measuring component 6 is a pair of metal thermocouple wires.
  • the specific implementation process is as follows: during use, connect the side electrode lead 7 to the negative pole of the power supply, and connect the center electrode lead 5 to the positive pole of the power supply.
  • the power supply supplies power to the electric heating device. After the heating component is powered on, it generates heat at high temperature and achieves the thermocouple temperature measurement function through its own material distribution. At the same time, the temperature measurement component 6 is powered on. Since the temperature measurement component 6 leads to the electric heating device, after the lead is powered on, the temperature measurement component 6 performs auxiliary temperature measurement on the cold end of the electric heating device to compensate for the temperature measurement error caused by external instability;
  • a heating component with a self-temperature measurement function is used as the heating core of the electric heating device, and a metal thermocouple is used as an auxiliary temperature measurement at the cold end to ensure the composite functions of conduction, heating, and temperature control, and can fill the gap of existing burners. It is impossible to achieve reliable ignition and stable operation under 100% use of methanol and LNG fuel, thereby ensuring the normal operation of the combustion equipment.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Combustion (AREA)
  • Resistance Heating (AREA)

Abstract

一种四线可测温电加热及点火装置，包括壳体（4）和具有自测温功能的发热组件；发热组件位于壳体（4）内，且发热组件伸出壳体（4）的发热端，壳体（4）的测温端还设置有测温组件（6），测温组件（6）的测温端伸出壳体（4）的测温端。该装置解决了现有的燃烧/加热设备中采用的高温热面元件在使用过程中容易出现加热/点火故障导致燃烧设备不能正常工作的问题。

Description

四线可测温电加热及点火装置 技术领域
本实用新型涉及电加热/点火装置技术领域，具体为一种四线可测温电加热及点火装置。
背景技术
燃烧设备是指为使燃料着火燃烧并将其化学能转化为热能释放出来的设备。目前，多数的绿色新能源燃烧设备采用甲醇或LNG等燃料进行燃烧。在燃烧设备使用过程中，也可以采用高温热面元件进行直接点火。但是，采用上述点火技术时，由于环境温度、气体流速、燃料/空气温度等出现较大变化时，容易出现点火故障，不能正常燃烧，从而影响燃烧设备的正常工作。
实用新型内容
本实用新型意在提供一种四线可测温电加热及点火装置，以解决现有的燃烧设备中采用的高温热面元件在使用过程中容易出现点火故障导致燃烧设备不能正常工作的问题。
本实用新型提供基础方案是：四线可测温电加热及点火装置，包括壳体和具有自测温功能的发热组件；发热组件位于壳体内，且发热组件伸出壳体的发热端，壳体的测温端还设置有测温组件，测温组件的测温端伸出壳体的测温端。
基础方案的有益效果是：由于高温热面元件在使用过程中，环境温度发生较大变化时，将对高温热面元件的温度产生较大影响，从而出现加热/点火故障的问题。因此本方案中，采用具有自测温功能的发热组件作为电加热装置的发热芯，同时还利用伸出壳体的测温组件作为冷端(测温端)辅助测温，通过辅助测温的方式来弥补外部环境不稳定带来的测温误差，再配合温控系统能够保证冷端温度变化时及时修正，从而提高了电加热装置的加热/点火可靠性，进而能够保证燃烧装置的正常使用。
进一步，测温组件为热偶丝。有益效果：本方案中，采用热偶丝作为测温组件，结构简单。
进一步，测温组件为金属热偶丝。
进一步，发热组件包括可测温发热体。有益效果：本方案中，采用可测温发热组件作为 发热组件使用，能够提高控温响应速度和使用寿命，而且通过自身材料分布达到热电偶测温功能，结构简单。
进一步，发热组件还包括两支电极，电极连接有伸出壳体的电极引线。有益效果：本方案中，电极与电极引线将给电端引出了壳体，从而方便在壳体外部为发热组件进行供电。
进一步，壳体为金属壳体或陶瓷壳体。
附图说明
图1为本实用新型四线可测温电加热及点火装置实施例的示意图。
具体实施方式
下面通过具体实施方式进一步详细说明：
说明书附图中的附图标记包括：可测温发热体1、中心电极2、侧电极3、壳体4、中心电极引线5、测温组件6、侧电极引线7。
实施例基本如附图1所示：四线可测温电加热及点火装置，包括壳体4和具有自测温功能的发热组件；本实施例中，壳体4为金属壳体或陶瓷等材料壳体，本实施例中采用金属壳体，壳体4的左端为发热端，右端为测温端，即为电加热装置的冷端。
发热组件位于壳体4内，且发热组件伸出壳体4的发热端，为了实现发热组件的自测温功能，本实施例中发热组件包括可测温发热体1，可测温发热体1通过自身材料分布达到热电偶测温功能，本实施例中，可测温发热体1为氮化硅全陶瓷发热体。
发热组件还包括两支电极，电极连接有伸出壳体的电极引线，具体的，本实施例中，两支电极包括中心电极2和侧电极3，中心电极2连接有伸出壳体4的中心电极引线5，侧电极3连接有伸出壳体4的侧电极引线7。在本实施例中，中心电极2兼具导电和电加热装置正极功能，侧电极3兼具导电和测温热电偶负极功能。
壳体4的测温端还设置有测温组件6，测温组件6的测温端伸出壳体4的测温端。测温组件6为一对金属热偶丝。
具体实施过程如下：使用时，分别将侧电极引线7接入电源负极，将中心电极引线5接入电源正极，电源为电加热装置供电。在发热组件通电后，发热组件高温发热，同时通过自身材料分布达到热电偶测温功能。同时测温组件6通电，由于测温组件6是引出电加热装置的，引出在通电后，测温组件6对电加热装置冷端进行辅助测温，弥补外部不稳定带来的测 温误差；
本实施例中，采用自测温功能的发热组件作为电加热装置的发热芯，采用金属型热电偶作为冷端辅助测温，保证导电、加热、控温的复合功能，能够填补现有燃烧器无法100％使用甲醇、LNG燃料条件下的可靠着火及稳定工况运转，从而保证燃烧设备的正常工作。
以上所述的仅是本实用新型的实施例，方案中公知的具体结构及特性等常识在此未作过多描述，所属领域普通技术人员知晓申请日或者优先权日之前实用新型所属技术领域所有的普通技术知识，能够获知该领域中所有的现有技术，并且具有应用该日期之前常规实验手段的能力，所属领域普通技术人员可以在本申请给出的启示下，结合自身能力完善并实施本方案，一些典型的公知结构或者公知方法不应当成为所属领域普通技术人员实施本申请的障碍。应当指出，对于本领域的技术人员来说，在不脱离本实用新型结构的前提下，还可以作出若干变形和改进，这些也应该视为本实用新型的保护范围，这些都不会影响本实用新型实施的效果和专利的实用性。本申请要求的保护范围应当以其权利要求的内容为准，说明书中的具体实施方式等记载可以用于解释权利要求的内容。

Claims (6)

  1. 四线可测温电加热及点火装置，其特征在于：包括壳体和具有自测温功能的发热组件；所述发热组件位于所述壳体内，且所述发热组件伸出所述壳体的发热端，所述壳体的测温端还设置有测温组件，所述测温组件的测温端伸出所述壳体的测温端。
  2. 根据权利要求1所述的四线可测温电加热及点火装置，其特征在于：所述测温组件为热偶丝。
  3. 根据权利要求2所述的四线可测温电加热及点火装置，其特征在于：所述测温组件为金属热偶丝。
  4. 根据权利要求1-3任一所述的四线可测温电加热及点火装置，其特征在于：所述发热组件包括可测温发热体。
  5. 根据权利要求4所述的四线可测温电加热及点火装置，其特征在于：所述发热组件还包括两支电极，所述电极连接有伸出所述壳体的电极引线。
  6. 根据权利要求5所述的四线可测温电加热及点火装置，其特征在于：所述壳体为金属壳体或陶瓷壳体。
PCT/CN2022/125555 2022-05-25 2022-10-17 四线可测温电加热及点火装置 WO2023226280A1 (zh)

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CA3233257A CA3233257A1 (en) 2022-05-25 2022-10-17 Four-wire electric heating and ignition device capable of temperature measurement
KR1020247009509A KR20240052792A (ko) 2022-05-25 2022-10-17 온도 측정 가능 포-와이어 전기 발열 및 점화 장치

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