WO2010108443A1 - 用于点火和熄火切断燃气的燃烧器安全装置及其使用方法 - Google Patents

用于点火和熄火切断燃气的燃烧器安全装置及其使用方法 Download PDF

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WO2010108443A1
WO2010108443A1 PCT/CN2010/071301 CN2010071301W WO2010108443A1 WO 2010108443 A1 WO2010108443 A1 WO 2010108443A1 CN 2010071301 W CN2010071301 W CN 2010071301W WO 2010108443 A1 WO2010108443 A1 WO 2010108443A1
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temperature
control device
temperature sensor
burner
gas
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PCT/CN2010/071301
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French (fr)
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林光湧
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Lam Kwong Yung
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/12—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q9/00—Pilot flame igniters

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  • the present invention relates to the field of gas, and more particularly to a safety device for automatically extinguishing and shutting off gas, and a method of using the same.
  • Gas is widely used in daily life. Explosion accidents often occur due to gas leakage. Gas leakage is usually caused by insufficient oxygen or flames during combustion. The existing gas safety device usually determines whether the number of flame ions is used. Normal combustion, so that inaccurate detection will occur when it is wet, which brings hidden dangers.
  • the first technical problem to be solved by the present invention is to provide a safer device for safely igniting and extinguishing the gas by determining the normal combustion defect by checking the number of flame ions in the prior art.
  • a second technical problem to be solved by the present invention is to provide a method for a colleague to detect the amount of flame ions and temperature by detecting only the number of flame ions in the prior art.
  • the technical solution adopted by the present invention to solve the first technical problem is: constructing a safety device for extinguishing and extinguishing gas by ignition and flame extinguishing, and the safety device for shutting off the gas by the ignition and extinguishing includes a flame ion sensor for detecting flame ion generated by combustion of the burner, and is a burner An ignitor for ignition, a temperature sensor for detecting a combustion temperature of the burner, and a control device; the control device is provided with an IC, the control device is configured to set a temperature detected by the temperature sensor and a temperature in the IC The value is compared and a signal is sent to control the gas shutoff control device when the temperature detected by the temperature sensor and the temperature set value in the IC exceed a predetermined range.
  • the lower portion of the flame ion sensor is provided with a ceramic, and the flame ion sensor is internally provided with an empty groove for accommodating the temperature sensor.
  • the temperature sensor is disposed at a side of the flame ion sensor, and the temperature sensor and the flame ion sensor are disposed in the burner.
  • the method of using the method includes the following steps:
  • the igniter in the control device ignites the burner for a preset time, and the temperature sensor transmits the sensed temperature to the control device, and the control device first senses the presence or absence of flame ions, and if so, the temperature sensed by the temperature sensor. Whether there is a normal increase compared with the temperature of the temperature sensor before ignition; when the difference after comparison is less than the preset value, S5 is executed, otherwise the detection is continued;
  • the temperature sensor transmits the sensed temperature to the control device, and the control device first senses the presence or absence of flame ions. If so, the temperature sensor senses the temperature sensed with the temperature sensor temperature before the flameout. Normally decrease, when the difference after comparison is less than the preset value, S5 is executed, otherwise the detection is continued;
  • the control device compares the temperature of the temperature sensor with the amount of the used gas to complete combustion. If not, the step S5 is performed, and if the combustion is complete, the combustion power and the furnace temperature are displayed;
  • step S4 when the burner is burned, the control device continuously detects whether the temperature of the temperature sensor and the result detected by the flame ion sensor are normal, and if any is not normal, step S5 is performed;
  • the control device sends a signal to cut off the gas.
  • the safety device for shutting off the gas by the ignition and flame extinguishing of the present invention comprises: a flame ion sensor for detecting combustion of the flame by the burner, an igniter for igniting the burner, a temperature sensor for detecting the combustion temperature of the burner, and a control device;
  • the device is provided with an IC for comparing a temperature detected by the temperature sensor with a temperature set value in the IC and a temperature detected by the temperature sensor and a temperature set value in the IC Signals outside the preset range are sent to control the gas shut-off control.
  • Such a structure can determine whether the burner is burning by comparing the difference in temperature, and if it does not burn, the gas is cut off in a short time, thereby avoiding an accident.
  • FIG. 1 is a schematic view showing the structure of a first embodiment of a safety device for igniting and extinguishing gas in the present invention.
  • the safety device for igniting and extinguishing the gas includes a flame ion sensor for detecting combustion of the burner to generate flame ions, and igniting the burner.
  • the flame ion sensor is a circular shaft indicated by reference numeral 50, and includes an upper portion and a lower portion, and a ceramic 30 is disposed on the outer surface of the lower portion thereof, and the ceramic 30 functions as heat insulation.
  • An empty slot 20 is defined in the lower portion of the flame ion sensor 50, and a temperature sensor 42 for measuring the temperature of combustion of the burner is mounted inside the recess 20.
  • the temperature sensor 42 is disposed at the upper end of the empty slot 20, the reference numerals 41, 40 disposed outside the recess are the two leads of the temperature sensor, and the reference numeral 44 is the lead of the flame ion sensor 50, reference numerals 41, 40 44 is connected to a control device (not shown), and the control device is provided with an IC.
  • the temperature sensor 42 may also be disposed at a side of the flame ion sensor 50.
  • the temperature sensor 42 and the flame ion sensor 50 are disposed in the burner.
  • the method for using the safety device for ignition and flame-off gas of the present invention comprises the following steps:
  • the igniter in the control device ignites the burner for a preset time, and the temperature sensor 42 transmits the sensed temperature to the control device, and the control device first senses the presence or absence of flame ions, and if so, senses the temperature sensor 42. Whether the temperature is higher than the temperature of the temperature sensor 42 before ignition, and when the difference is less than the preset value, S5 is executed; otherwise, the detection is continued;
  • the temperature sensor 42 transmits the sensed temperature to the control device, and the control device first senses the presence or absence of flame ions. If so, the temperature sensor 42 senses the temperature and the temperature of the temperature sensor 42 before the flameout. Whether there is a normal decrease or not, when the difference after the comparison is less than the preset value, S5 is executed, otherwise the detection is continued;
  • the control device compares the temperature of the temperature sensor 42 with the amount of used gas to complete combustion. If not, the step S5 is performed, and if the combustion is complete, the combustion power and the furnace temperature are displayed;
  • step S4 when the burner is burned, the control device continuously detects whether the temperature of the temperature sensor 42 and the result detected by the flame ionization sensor 50 are normal, if any is not normal, step S5 is performed;
  • the control device sends a signal to cut off the gas.
  • the difference in temperature may be selected from 50 to 200 degrees, preferably 50 degrees or 100 degrees, and the preset time may be selected from 2 seconds to 5 seconds. It is preferably 2 seconds or 3 seconds.
  • the control device of the present invention first detects whether there is a flame ion at the time of ignition, and the flame detects whether there is no ion at the time of flameout, and continuously compares the temperature detected by the temperature sensor 42 with the temperature before the change, if the flame ion detector and the flame temperature are not simultaneously If the change is made, the controller will cut off the gas to avoid the accident.

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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)
  • Regulation And Control Of Combustion (AREA)

Description

[根据细则37.2由ISA制定的发明名称]　用于点火和熄火切断燃气的燃烧器安全装置及其使用方法 技术领域
本发明涉及燃气领域，更具体地说，涉及一种自动点火熄火切断燃气的安全装置及该安全装置的使用方法 。
背景技术
燃气在日常生活中用途极广，由于燃气的泄漏经常会发生爆炸事故，燃气泄漏通常是燃烧时氧气不足或者火焰被吹熄，现有燃气的安全装置通常是通过检查火焰离子的数量来判定是否正常燃烧，这样在潮湿时会出现检测不准确，带来了事故隐患。
发明内容
本发明要解决的第一技术问题在于，针对现有技术的上述通过检查火焰离子的数量来判定是否正常燃烧缺陷，提供一种更安全的自动点火熄火切断燃气的安全装置。
本发明要解决的第二技术问题在于，针对现有技术的通过只检测火焰离子数量的方法，提供一种同事检测火焰离子数量和温度相配合的方法。
本发明解决第一技术问题所采用的技术方案是：构造一种点火熄火切断燃气的安全装置，所述点火熄火切断燃气的安全装置包括检测燃烧器燃烧产生火焰离子的火焰离子传感器、为燃烧器点火的点火器、检测所述燃烧器燃烧温度的温度传感器和控制装置；所述控制装置设置有IC，所述控制装置为将所述温度传感器探测到的温度与所述IC里的温度设定值比较并当所述温度传感器探测到的温度与所述IC里的温度设定值超出预设范围便发出信号去控制燃气切断的控制装置。
在本发明所述的点火熄火切断燃气的安全装置中，所述火焰离子传感器的下部设置有陶瓷，所述火焰离子传感器内部设置有容纳所述温度传感器的空槽。
在本发明所述的点火熄火切断燃气的安全装置中，所述温度传感器设置于所述火焰离子传感器的侧边，所述温度传感器、火焰离子传感器设置于所述燃烧器内。
本发明解决第二技术问题所采用的技术方案是：在本发明所述的点火熄火切断燃气的安全装置的使用方法中，所述的使用方法包括下述步骤：
S1、控制装置里的点火器给燃烧器点火后达到预设时间，则温度传感器把感应到的温度传递给控制装置，控制装置先感应有无火焰离子，如有则将温度传感器感应到的温度与点火前温度传感器温度比较有无正常升高，当比较后的差值小于预设数值时，便执行S5,否则继续检测；
S2、当燃烧器在燃烧时熄火，温度传感器把感应到的温度传递给控制装置，控制装置先感应有无火焰离子，如有则温度传感器将感应到的温度与熄火前温度传感器温度比较有无正常降低，当比较后的差值小于预设数值时，便执行S5,否则继续检测；
S3、当燃烧器燃烧时，所述控制装置将温度传感器的温度与所用燃气的用量比较是否完全燃烧，若不完全燃烧则执行步骤S5，若完全燃烧则将燃烧功率及炉火温度显示；
S4、当燃烧器燃烧时，控制装置不断检测温度传感器的温度与火焰离子传感器检测的结果是否正常，若任一不正常则执行步骤S5；
S5、控制装置发出信号去切断燃气。
实施本发明的节能环保烧烤炉，具有以下有益效果：
本发明的所述点火熄火切断燃气的安全装置包括检测燃烧器燃烧产生火焰离子的火焰离子传感器、为燃烧器点火的点火器、检测所述燃烧器燃烧温度的温度传感器和控制装置；所述控制装置设置有IC，所述控制装置为将所述温度传感器探测到的温度与所述IC里的温度设定值比较并当所述温度传感器探测到的温度与所述IC里的温度设定值超出预设范围便发出信号去控制燃气切断的控制装置。这样的结构可以通过比较温度的差值来确定燃烧器是否在燃烧，如果不燃烧就会在很短时间内切断燃气，避免了事故的发生。
附图说明
下面将结合附图及实施例对本发明作进一步说明，附图中：
图1是本发明点火熄火切断燃气的安全装置第一实施例的结构示意图 。
具体实施方式
如图1所示，在本发明的点火熄火切断燃气的安全装置的第一实施例中，所述点火熄火切断燃气的安全装置包括检测燃烧器燃烧产生火焰离子的火焰离子传感器、为燃烧器点火的点火器、检测所述燃烧器燃烧温度的温度传感器和控制装置；所述控制装置设置有IC，所述控制装置为将所述温度传感器探测到的温度与所述IC里的温度设定值比较并当所述温度传感器探测到的温度与所述IC里的温度设定值超出预设范围便发出信号去控制燃气切断的控制装置 。
其中，火焰离子传感器为附图标记50所示的圆轴，包括上部和下部，其下部的外面设置有陶瓷30，陶瓷30的作用是隔热。在火焰离子传感器50下部里面开设有空槽20，空槽20里面安装有测量燃烧器燃烧的温度的温度传感器42。温度传感器42设置于空槽20里的上端，设置在空槽外的附图标记41、40为温度传感器的两根引线，附图标记44为火焰离子传感器50的引线，附图标记41、40、44连接有控制装置（未画出），而控制装置里面设置有IC。
所述温度传感器42还可以设置于所述火焰离子传感器50的侧边，所述温度传感器42、火焰离子传感器50设置于所述燃烧器内。
当然，我们也可以把温度传感器42放在火焰离子传感器50的外部，只是放在里面在安装时更方便和测量得到的结果更准确。
本发明的点火熄火切断燃气的安全装置使用方法包括如下步骤：
S1、控制装置里的点火器给燃烧器点火后达到预设时间，则温度传感器42把感应到的温度传递给控制装置，控制装置先感应有无火焰离子，如有则将温度传感器42感应到的温度与点火前温度传感器42温度比较有无正常升高，当比较后的差值小于预设数值时，便执行S5,否则继续检测；
S2、当燃烧器在燃烧时熄火，温度传感器42把感应到的温度传递给控制装置，控制装置先感应有无火焰离子，如有则温度传感器42将感应到的温度与熄火前温度传感器42温度比较有无正常降低，当比较后的差值小于预设数值时，便执行S5,否则继续检测；
S3、当燃烧器燃烧时，所述控制装置将温度传感器42的温度与所用燃气的用量比较是否完全燃烧，若不完全燃烧则执行步骤S5，若完全燃烧则将燃烧功率及炉火温度显示；
S4、当燃烧器燃烧时，控制装置不断检测温度传感器42的温度与火焰离子传感器50检测的结果是否正常，若任一不正常则执行步骤S5；
S5、控制装置发出信号去切断燃气。
在上面的方法中，温度的差值可以选择50至200度，优选50度或100度而预设时间可以选择2秒至5秒。优选2秒或3秒。
本发明的控制装置先检测点火时是否有火焰离子，而熄火时火焰检测有无离子，不断地把温度传感器42检测到的温度和变化前的温度比较，如果火焰离子检测器和火焰温度无同时变化，则通过控制器去切断燃气，避免了事故的发生。

Claims (4)

  1. 一种点火熄火切断燃气的安全装置，其特征在于，所述点火熄火切断燃气的安全装置包括检测燃烧器燃烧产生火焰离子的火焰离子传感器、为燃烧器点火的点火器、检测所述燃烧器燃烧温度的温度传感器和控制装置；所述控制装置设置有IC，所述控制装置为将所述温度传感器探测到的温度与所述IC里的温度设定值比较并当所述温度传感器探测到的温度与所述IC里的温度设定值超出预设范围便发出信号去控制燃气切断的控制装置。
  2. 根据权利要求1所述的点火熄火切断燃气的安全装置，其特征在于，所述火焰离子传感器的下部设置有陶瓷，所述火焰离子传感器内部设置有容纳所述温度传感器的空槽。
  3. 根据权利要求1所述的点火熄火切断燃气的安全装置，其特征在于，所述温度传感器设置于所述火焰离子传感器的侧边，所述温度传感器、火焰离子传感器设置于所述燃烧器内。
  4. 一种权利要求1所述的点火熄火切断燃气的安全装置的使用方法，其特征在于，所述的使用方法包括下述步骤：
    S1、控制装置里的点火器给燃烧器点火后达到预设时间，则温度传感器把感应到的温度传递给控制装置，控制装置先感应有无火焰离子，如有则将温度传感器感应到的温度与点火前温度传感器温度比较有无正常升高，当比较后的差值小于预设数值时，便执行S5,否则继续检测；
    S2、当燃烧器在燃烧时熄火，温度传感器把感应到的温度传递给控制装置，控制装置先感应有无火焰离子，如有则温度传感器将感应到的温度与熄火前温度传感器温度比较有无正常降低，当比较后的差值小于预设数值时，便执行S5,否则继续检测；
    S3、当燃烧器燃烧时，所述控制装置将温度传感器的温度与所用燃气的用量比较是否完全燃烧，若不完全燃烧则执行步骤S5，若完全燃烧则将燃烧功率及炉火温度显示；
    S4、当燃烧器燃烧时，控制装置不断检测温度传感器的温度与火焰离子传感器检测的结果是否正常，若任一不正常则执行步骤S5；
    S5、控制装置发出信号去切断燃气。
PCT/CN2010/071301 2009-03-25 2010-03-25 用于点火和熄火切断燃气的燃烧器安全装置及其使用方法 WO2010108443A1 (zh)

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