Incinerator with double-insurance flame detection function

Abstract

The incinerator with the double-insurance flame detection function comprises an incinerator body, a combustor is installed on one side of the incinerator body, the two sides of the combustor are each provided with a flame detection module, the two flame detection modules are both connected to a signal processing unit in parallel through signals, and the signal processing unit is connected to a control unit. The control unit is used for controlling the combustor to ignite, stop or give an alarm according to the signal state so as to ensure safe operation of the incinerator; according to the utility model, the two groups of flame detection modules are respectively and independently used for flame detection and are connected to the control unit in parallel, and the system can confirm flame flameout in the incinerator only when the two groups of flame detection modules simultaneously detect flame flameout, so that the adverse effect caused by false alarm due to self reasons of the flame sensor is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to incinerator technical field, concretely is incinerator with double safety flame detection function. BACKGROUND

[0002] The strip steel color coating process is to deliver the hot air generated after the natural gas is burnt to the strip steel through the incinerator, and to realize the plate surface paint solidification by baking the plate surface. At present, the furnace mouth of the incinerator is generally provided with one flame sensor, and the flame sensor is used to detect whether the flame in the incinerator is extinguished. In actual use, due to the sensitivity of the flame monitor, the small flame and other reasons, the flame in the incinerator is not extinguished occasionally, but the flame sensor cannot sense the flame signal, which will send an error signal to the computer program, display that the incinerator is extinguished, and the related interlock protection program will be started, causing the operator to misjudge the extinguishment and the unit shutdown, which has a negative impact on production. SUMMARY

[0003] The main purpose of the utility model is to solve the problems in the prior art, and provide an incinerator with double safety flame detection function.

[0004] The specific scheme of the utility model is as follows: the incinerator with double safety flame detection function comprises a furnace body, a burner is arranged on one side of the furnace body, a group of flame detection modules are arranged on the two sides of the burner, two groups of flame detection modules are signal parallelly connected to a signal processing unit, the signal processing unit is connected to a control unit, and the control unit is used for controlling the burner ignition, shutdown or alarm according to the signal state, so as to ensure the safe operation of the incinerator.

[0005] Further, the flame detection module comprises a sensor and a quartz protective shell, the quartz protective shell is fixedly connected with the furnace wall of the incinerator, a part of the quartz protective shell extends into the incinerator, the sensor is inserted into the quartz protective shell, and the inner end of the sensor extends into the incinerator to detect the flame state in real time.

[0006] Further, the quartz protective shell is in a cylindrical shape, the quartz protective shell is arranged at an angle with the horizontal plane, and the sensor is coaxially arranged with the quartz protective shell.

[0007] Further, the sensor is an ultraviolet sensor.

[0008] Further, the incinerator is provided with an air cooling module outside, the air cooling module comprises a fan and an air duct, one end of the air duct is connected with the fan, the other end of the air duct is provided with two branch pipes, and the two branch pipes are respectively aligned with the outer ends of the flame detection modules, so as to cool the flame detection unit.

[0009] Further, the fan is a blower fan provided with the incinerator.

[0010] Compared with the prior art, the utility model has the following advantages: 1, through setting two groups of flame detection module respectively independent flame detection, parallel to control unit, only when two groups of flame detection module detects flame simultaneously and the system will confirm that the flame in incinerator is off, thereby reduce the bad influence that produces because of flame sensor own reason false report;2, through setting air -cooled module to the flame detection module cooling, promote the service life of sensor;3, the fan that air -cooled module adopts with incinerator original air -blower shares, thereby energy -conserving and consumption -reducing. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the three -dimensional schematic diagram of the utility model;

[0012] Figure 2 It is Figure 1 the front view of;

[0013] Figure 3 It is Figure 2 A-A view of;

[0014] Figure 4 It is the sensor connection schematic diagram of the utility model;

[0015] In the drawing: 1, furnace body;2, flame detection module;21, flame sensor;22, quartz protection shell;3, combustor;4, branch pipe;5, air duct;6, fan. DETAILED DESCRIPTION

[0016] Referring to Figures 1-3 , the embodiment is the incinerator with double insurance flame detection function, including furnace body 1, furnace body 1 one side is equipped with combustor 3, the two sides of combustor 3 are equipped with a group of flame detection module 2, two groups of flame detection module 2 all signal parallel to signal processing unit, signal processing unit is connected to control unit, control unit is used for according to signal state control combustor 3 ignition, shutdown or alarm, to ensure that incinerator safe operation.

[0017] Further, the flame detection module 2 includes a sensor, a quartz protection shell 22, the quartz protection shell 22 is fixedly connected with the furnace wall of the incinerator, a part of the quartz protection shell 22 extends into the incinerator, the sensor is inserted into the quartz protection shell 22, and the inner end of the sensor extends into the incinerator to detect the flame state in real time.

[0018] Further, the quartz protection shell 22 is cylindrical, the quartz protection shell 22 is arranged at an inclination of 30-45 degrees to the horizontal plane, the sensor is coaxially arranged with the quartz protection shell 22, and when there is more dust on the sensor, the dust automatically slides off by inclining the sensor and the protection shell, so that the dust in the incinerator is not seriously attached to the sensor, and the sensitivity of the sensor in detecting the flame is affected.

[0019] Further, the sensor adopts an ultraviolet sensor.

[0020] Further, the incinerator is externally provided with a wind cooling module, which comprises a fan 6 and an air guide pipe 5, one end of the air guide pipe 5 is connected with the fan 6, and the other end is provided with two branch pipes 4, the two branch pipes 4 are respectively aligned with the outer ends of the flame detection modules 2 to cool the flame detection units.

[0021] Further, the fan 6 adopts a blower fan 6 provided with the incinerator, most of the air generated by the blower fan 6 is introduced into the incinerator to supply air required for combustion, a small part of the air is branched to the two branch pipes 4 through the air guide pipe 5 to actively cool the two flame sensors 21, so that the working temperature of the sensor is ≤ 150℃, and the service life is prolonged by 3 times.

[0022] As shown in Figure 4 the utility model discloses two sensors are connected to signal processor in parallel, sensor A and sensor B work simultaneously when the production of color coating, unless two sensors simultaneously detect no flame, otherwise as long as one sensor can detect flame, control system will not receive the signal of extinguishing, will not trigger the feedback mechanism of extinguishing, also avoids the influence of color coating normal production, improves the reliability and security of flame monitoring.

Claims

1. An incinerator with dual-safety flame detection function, comprising a furnace body, wherein a burner is mounted on one side of the furnace body, characterized in that: Each side of the burner is equipped with a set of flame detection modules. Both sets of flame detection modules are connected in parallel to the signal processing unit. The signal processing unit is connected to the control unit. The control unit is used to control the burner to ignite, shut down, or sound an alarm according to the signal status to ensure the safe operation of the incinerator.

2. The incinerator with dual-insurance flame detection function according to claim 1, characterized in that: The flame detection module includes a sensor and a quartz protective shell. The quartz protective shell is fixedly connected to the furnace wall of the incinerator, and a part of the quartz protective shell extends into the incinerator. The sensor is inserted into the quartz protective shell, and the inner end of the sensor extends into the incinerator to detect the flame status in real time.

3. The incinerator with dual-insurance flame detection function according to claim 2, characterized in that: The quartz protective shell is cylindrical and is arranged at a certain angle to the horizontal plane. The sensor is arranged coaxially with the quartz protective shell.

4. The incinerator with dual-insurance flame detection function according to claim 2, characterized in that: The sensor is an ultraviolet sensor.

5. The incinerator with dual-insurance flame detection function according to claim 1, characterized in that: The incinerator is equipped with an air-cooling module on its outer side. The air-cooling module includes a fan and an exhaust pipe. One end of the exhaust pipe is connected to the fan, and the other end is equipped with two branch pipes. The two branch pipes are respectively aligned with the outer end of the flame detection module to cool the flame detection unit.

6. The incinerator with dual-insurance flame detection function according to claim 5, characterized in that: The blower used is the one that comes with the incinerator.

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