WO2020238089A1 - Procédé de détection de l'état d'un appareil d'allumage, et dispositif de détection d'allumage utilisant celui-ci - Google Patents

Procédé de détection de l'état d'un appareil d'allumage, et dispositif de détection d'allumage utilisant celui-ci Download PDF

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Publication number
WO2020238089A1
WO2020238089A1 PCT/CN2019/120474 CN2019120474W WO2020238089A1 WO 2020238089 A1 WO2020238089 A1 WO 2020238089A1 CN 2019120474 W CN2019120474 W CN 2019120474W WO 2020238089 A1 WO2020238089 A1 WO 2020238089A1
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WO
WIPO (PCT)
Prior art keywords
ignition device
temperature
real
state
change rate
Prior art date
Application number
PCT/CN2019/120474
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English (en)
Chinese (zh)
Inventor
吴芳玲
屈敏
曹玉娟
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苏州迅鹏仪器仪表有限公司
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Application filed by 苏州迅鹏仪器仪表有限公司 filed Critical 苏州迅鹏仪器仪表有限公司
Publication of WO2020238089A1 publication Critical patent/WO2020238089A1/fr

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K15/00—Testing or calibrating of thermometers
    • G01K15/007—Testing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00—Subject matter not provided for in other groups of this subclass

Definitions

  • the invention belongs to the technical field of industrial detection, and specifically relates to a method for detecting the state of an ignition device, and a fire detector applying the method.
  • the commonly used digital display measurement and control instrument (fire detector) for fire/non-fire detection of ignition equipment is: set a thermocouple, and obtain the current real-time temperature value of the ignition equipment by collecting the temperature sensor signal of the thermocouple;
  • the display measurement and control instrument sets the upper and lower limits of the corresponding temperature alarm value, and the processor judges the current fire/non-fire status according to the set temperature alarm value upper and lower limits: 1.
  • the current real-time temperature ⁇ the upper limit of the temperature alarm value judge If the ignition device is in a fire state, the output contact of the relay AH connected to the processor will act, but the output contact of the relay AL will not act;
  • the relay AH and the relay AL also remain unchanged; 3.
  • the current real-time temperature ⁇ the lower limit of the temperature alarm value the ignition device is judged to be in a non-fire state, the relay AL output contact will act, and the relay AH output contact will not act.
  • the panel of the above-mentioned digital display measurement and control instrument is shown in Figure 1. After judging the status of the ignition device, the status is displayed through the fire status indicator or the non-fire status indicator, and the detected real-time temperature is performed through the temperature display Display, set and display each preset value through the button group and setting display.
  • Terminals 1 and 2 are used to connect the input signal of the thermocouple, terminal 14 is used to connect the fire state output relay AH, and terminal 17 is used to connect the non Fire status output relay AL.
  • the existing scheme of judging the fire/non-fire state based on the temperature measured by the digital display measurement and control instrument first has a delay, and the fire/non-fire state cannot be obtained in the first time. It needs to wait for the temperature to rise/drop to a certain level It can be determined as the fire/no fire state after the value is set. This delay affects the real-time and safety of the entire system and reduces the system efficiency.
  • the current scheme may lead to inaccuracy in judging the ignition state of the system, such as: The flameout temperature drops, but does not fall to the set lower limit, the ignition device is started again, the temperature rises again, the ignition status reflected by the instrument has always been a fire state, which cannot reflect the flameout process that has occurred; this solution is in the thermocouple temperature sensor failure Time will fail.
  • the above problems of existing instruments may cause system failure and uneasiness.
  • the purpose of the present invention is to provide a method for detecting the state of an ignition device that can improve the accuracy and timeliness of detection, thereby ensuring system safety and avoiding system failures.
  • a method for detecting the state of an ignition device which is used to detect the fire state/non-fire state of the ignition device, and the method for detecting the state of the ignition device is:
  • Preset detection related parameters including temperature upper limit value AH, temperature lower limit value AL, temperature change rate alarm setting value AHH, temperature change rate alarm value HYA3;
  • Detect the real-time temperature of the ignition device and if the real-time temperature of the ignition device ⁇ the upper temperature limit AH, determine that the ignition device is in a fire state; if the real-time temperature of the ignition device ⁇ the temperature If the limit value is AL, it is determined that the ignition device is in a non-fire state;
  • the lower temperature limit AL ⁇ the real-time temperature of the ignition device ⁇ the upper temperature limit AH calculate the rate of change of the real-time temperature of the ignition device, if the rate of change of the real-time temperature of the ignition device ⁇ If the temperature change rate alarm setting value AHH, it is determined that the ignition device is in a fire state; if the real-time temperature change rate of the ignition device is ⁇ the temperature change rate alarm setting value AHH and the temperature change rate If the alarm will differ from the value HYA3, it is judged that the ignition device is in a non-fire state; if the temperature change rate alarm setting value AHH and the temperature change rate alarm difference value HYA3 are the difference ⁇ the real-time of the ignition device The temperature change rate ⁇ the temperature change rate alarm setting value AHH, then it is determined that the ignition device maintains the state it was in the last time determined.
  • the value range of t is 1-30.
  • the present invention also provides a measurement and control instrument applying the above-mentioned method for detecting the state of ignition equipment, namely a fire detector, which is used to detect the fire state/non-fire state of the ignition equipment, and the fire detector includes:
  • a temperature detection module which is used to detect the real-time temperature of the ignition device
  • a processor which is connected to the temperature detection module and is used to determine the state of the ignition device based on the method for detecting the state of the ignition device according to any one of claims 1 to 3 and output a corresponding signal ;
  • An indication module which is connected to the processor and indicates the state of the ignition device according to a signal output by the processor.
  • the temperature detection module includes a thermocouple.
  • the indicating module includes a status indicating relay and/or a status indicator.
  • the fire detector further includes a setting module for presetting the detection related parameters, and the setting module includes a button group and a setting display screen.
  • the flame detector further includes a temperature display screen connected to the processor and used for displaying the real-time temperature of the ignition device detected by the temperature detection module.
  • the flame detector further includes a power supply module.
  • the flame detector further includes a fault indicator light for displaying whether the temperature detection module is faulty.
  • the present invention has the following advantages compared with the prior art: the present invention can improve the accuracy and timeliness of detecting the state of the ignition device, thereby ensuring system safety and avoiding system failures.
  • Figure 1 is a schematic diagram of a panel of an existing digital display measurement and control instrument.
  • Figure 2 is a schematic diagram of the processor of the existing digital display measurement and control instrument.
  • Figure 3 is a schematic diagram of the panel of the fire detector of the present invention.
  • Figure 4 is a schematic diagram of the processor of the fire detector of the present invention.
  • Fig. 5 is a flow chart of the method for detecting the state of the ignition device of the present invention.
  • Embodiment 1 A fire detector for detecting the fire state/no fire state of an ignition device, which mainly includes a temperature detection module, a processor, and an indication module.
  • the temperature detection module is used to detect the real-time temperature of the ignition device.
  • a thermocouple is used.
  • the processor is connected to the temperature detection module, and the processor is used to execute the ignition device state detection method according to the real-time temperature of the ignition device detected by the temperature detection module to determine the state of the ignition device and output corresponding signals.
  • the indicating module is connected to the processor, and is used to indicate the state of the ignition device according to the signal output by the processor.
  • the indicating module includes the status indicating relay AH and/or the status indicator.
  • Two status indicators can be set, namely, the non-fire status indicator 5 (AH) (green) that indicates the non-fire state and the fire state that indicates the fire state.
  • the status indicator lights 4 and 5 can be controlled by the indicating relay AH to turn on and off.
  • the processor is shown in Fig. 4, its terminals 1 and 2 are used to connect thermocouples to obtain input signals, and terminal 14 is used to connect the status indicating relay AH.
  • the status indicating relay AH it is in the fire state when it acts under the control of the processor output signal, and it is in the non-fire state when it does not act.
  • the above-mentioned fire detector also includes a setting module, a temperature display 1, a power supply module and a fault indicator 6.
  • the setting module is used to preset the detection related parameters required by the processor to execute the ignition device state detection method, so it usually includes a button group 3 and a setting display screen 2, both of which are connected to the processor.
  • the temperature display screen 1 is connected with the processor, and is used for displaying the real-time temperature of the ignition device detected by the temperature detection module.
  • the power module is used to supply power for the temperature detection module and the processor.
  • the fault indicator light 6 (red) is used to show whether the temperature detection module is faulty.
  • the fault indicator light 6 can be controlled by the relay AL connected to the 17th terminal of the processor. When the temperature detection module fails, the relay AL will act.
  • the indicator light 6 is on.
  • the relay AL does not operate, and the fault indicator light 6 is off.
  • the above-mentioned button group 3, setting display screen 2, temperature display screen 1, fault indicator light 6, and status indicators 4 and 5 are all set on the panel of the flame detector, as shown in FIG.
  • the panel of the flame detector is located on one side of its shell.
  • the above-mentioned processor adopts the following ignition device status detection method:
  • Preset detection related parameters including temperature upper limit value AH, temperature lower limit value AL, temperature change rate alarm setting value AHH, temperature change rate alarm difference value HYA3.
  • thermocouple is used to periodically detect the real-time temperature X of the ignition device, and the detected real-time temperature X is displayed on the temperature display 1. First judge whether the thermocouple is faulty, if it is, the control status indicating relay AH does not operate, the relay AL operates, the no-fire status indicator 5 is on, the fire status indicator 4 is off, and the fault indicator 6 is on; otherwise, continue to perform the real-time temperature judgment:
  • the ignition equipment is judged to be in a non-fire state, the status indicating relay AH does not operate, and the relay AL No action, the fire status indicator 4 is off, the no fire status indicator 5 is on, and the fault indicator 6 is off.
  • the temperature change rate alarm set value AHH 3If the difference between the temperature change rate alarm set value AHH and the temperature change rate alarm HYA3 ⁇ the real-time temperature change rate Y of the ignition device ⁇ the temperature change rate alarm set value AHH, then it is judged that the ignition device maintains the previous judgment It is in its current state, that is, the state of the state indicating relay AH remains unchanged, the relay AL does not operate, the fire state indicator light 4, and the non-fire state indicator light 5 maintain the current state unchanged, and the fault indicator light 6 is off.
  • the status indicating relay AH When the measured real-time temperature X is greater than or equal to 500.0°C, the status indicating relay AH outputs, the fire status indicator 4 is on, and the no fire status indicator 5 is off, indicating that there is fire;
  • the status indicating relay AH will output, the fire status indicator 4 is on, and the non-fire status indicator 5 is off, indicating that there is fire;
  • the status indicating relay AH is disconnected, the fire status indicator 4 is off, and the no fire status indicator 5 is on, indicating that there is no fire.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire Alarms (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

L'invention concerne un procédé de détection de l'état d'un appareil d'allumage, qui détecte l'état d'un appareil d'allumage sur la base d'une température en temps réel et d'un taux de variation de température de l'appareil d'allumage. L'invention concerne également un dispositif de détection d'allumage utilisant le procédé de détection, et comprenant un module de détection de température, un processeur et un module d'indication. Le module de détection de température est utilisé pour détecter une température en temps réel d'un appareil d'allumage. Le processeur est connecté au module de détection de température, et est utilisé pour déterminer un état de l'appareil d'allumage et pour délivrer en sortie un signal correspondant. Le module d'indication est connecté au processeur et indique l'état de l'appareil d'allumage en fonction du signal délivré en sortie par le processeur. L'invention peut améliorer la précision et la rapidité de la détection d'état effectuée sur un appareil d'allumage, ce qui permet d'assurer une sécurité du système et d'empêcher des défaillances du système.
PCT/CN2019/120474 2019-05-31 2019-11-25 Procédé de détection de l'état d'un appareil d'allumage, et dispositif de détection d'allumage utilisant celui-ci WO2020238089A1 (fr)

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CN201910471650.7 2019-05-31
CN201910471650.7A CN110196112B (zh) 2019-05-31 2019-05-31 点火设备状态检测方法和应用其的火检仪

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110196112B (zh) * 2019-05-31 2021-07-16 苏州迅鹏仪器仪表有限公司 点火设备状态检测方法和应用其的火检仪

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JPH0765267A (ja) * 1993-08-23 1995-03-10 Matsushita Electric Works Ltd 火災警報装置及び熱感知器
CN101464096A (zh) * 2008-12-11 2009-06-24 江苏金源锻造股份有限公司 燃气加热炉温度多点传感与智能控制方法
CN103486872A (zh) * 2013-09-26 2014-01-01 栗琳 煅烧窑燃烧状态监测方法、设备及煅烧窑***
CN105527937A (zh) * 2014-10-23 2016-04-27 中国石油天然气股份有限公司 用于火驱点火的报警方法、报警装置和报警***
CN106610036A (zh) * 2015-10-22 2017-05-03 台湾樱花股份有限公司 瓦斯炉燃烧状态检测装置及其检测方法
CN106838975A (zh) * 2016-12-21 2017-06-13 河南万安油气设备工程有限公司 基于测温装置温变趋势的火焰燃灭状态判断方法
CN107014205A (zh) * 2017-04-14 2017-08-04 北京首钢自动化信息技术有限公司 一种烧结点火炉温度自动控制节能方法
CN110196112A (zh) * 2019-05-31 2019-09-03 苏州迅鹏仪器仪表有限公司 点火设备状态检测方法和应用其的火检仪

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0765267A (ja) * 1993-08-23 1995-03-10 Matsushita Electric Works Ltd 火災警報装置及び熱感知器
CN101464096A (zh) * 2008-12-11 2009-06-24 江苏金源锻造股份有限公司 燃气加热炉温度多点传感与智能控制方法
CN103486872A (zh) * 2013-09-26 2014-01-01 栗琳 煅烧窑燃烧状态监测方法、设备及煅烧窑***
CN105527937A (zh) * 2014-10-23 2016-04-27 中国石油天然气股份有限公司 用于火驱点火的报警方法、报警装置和报警***
CN106610036A (zh) * 2015-10-22 2017-05-03 台湾樱花股份有限公司 瓦斯炉燃烧状态检测装置及其检测方法
CN106838975A (zh) * 2016-12-21 2017-06-13 河南万安油气设备工程有限公司 基于测温装置温变趋势的火焰燃灭状态判断方法
CN107014205A (zh) * 2017-04-14 2017-08-04 北京首钢自动化信息技术有限公司 一种烧结点火炉温度自动控制节能方法
CN110196112A (zh) * 2019-05-31 2019-09-03 苏州迅鹏仪器仪表有限公司 点火设备状态检测方法和应用其的火检仪

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