A device and method for detecting and alarming a burner leakage on a flame cleaning machine

Abstract

The application discloses a device for detecting and alarming leakage of a burner on a flame cleaning machine, which is arranged on a joint surface of a gas distributor and comprises a gas guiding structure, a gas guiding pipeline and a sensor; the gas guiding structure is arranged on the joint surface of the gas distributor; one end of the gas guiding pipeline is connected with the gas guiding structure, and the other end is connected with the sensor; signals of the sensor are transmitted to a PC terminal and displayed on a man-machine interface of the PC terminal; the number of the device is matched with the number of the burner device; and the application further discloses a detection method for detecting and alarming leakage of the burner on the flame cleaning machine. The application can determine one or several burner devices with leakage, detect whether the leaked gas is oxygen or fuel gas, and alarm through the man-machine interface, so that equipment burning or fire accidents can be avoided.

Description

Technical Field

[0001] This invention relates to burner leakage detection technology for flame cleaners, and more specifically, to a device and method for detecting and alarming burner leakage on flame cleaners. Background Technology

[0002] With the increasing demand for high-value-added sheet metal such as automotive steel, appliance panels, battery casing steel, and food-grade steel, the rolling processes for these sheets place stricter requirements on the surface quality of the slabs. This necessitates efficient mechanical flame cleaning processes to remove surface defects, making four-sided flame cleaning machines for slabs increasingly important. The burners installed on the flame cleaner correspond to the upper and lower surfaces, as well as the left and right sides of the slab. For example... Figure 1 As shown, the oxygen and fuel gas used by the flame cleaner are transported to the main frame through pipelines. After being distributed by the gas distributor 1, they enter the upper preheating block, the lower preheating block, and the gap formed between the upper and lower preheating blocks of the burner device 2, and finally ignite to form the required flame.

[0003] However, since a large number of sealing rings are provided on the mating surface 3 between the gas distributor 1 and the burner device 2, in the actual production process, due to reasons such as improper installation of the sealing rings, heat deterioration of the sealing rings, and burner backfire, some sealing rings may fail, causing leakage and fire in this part. In severe cases, the burner device 2 or even the gas distributor 1 may crack or be partially melted, affecting the production rhythm and causing unnecessary losses. Summary of the Invention

[0004] To address the aforementioned deficiencies in the existing technology, the purpose of this invention is to provide a device and method for detecting and alarming burner leaks on a flame cleaner. This device can identify one or more burner devices that are leaking, detect whether the leaking gas is oxygen or fuel gas, and issue an alarm through a human-machine interface to prevent equipment burn-out or fire accidents.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] On the one hand, a device for detecting and alarming burner leaks on a flame cleaner is located on the mating surface of a gas distributor, including a gas guiding structure, a gas guiding pipeline, and a sensor;

[0007] The gas guiding structure is disposed on the mating surface of the gas distributor. One end of the gas guiding pipe is connected to the gas guiding structure, and the other end is connected to the sensor. The signal from the sensor is transmitted to the PC terminal and displayed on the human-machine interface of the PC terminal.

[0008] The number of the devices is matched with the number of burner devices.

[0009] Preferably, the gas guiding structure includes multiple parallel gas guiding grooves formed on the mating surface of the gas distributor, and gas guiding holes perpendicularly intersecting the gas guiding grooves.

[0010] Preferably, one end of the air guide pipe is connected to the air guide hole.

[0011] Preferably, the number of burner devices is 1 on each of the left and right sides, and 6 to 9 on each of the top and bottom sides.

[0012] Preferably, the burner devices are spaced apart by sealing strips.

[0013] Preferably, the human-machine interface is equipped with an alarm.

[0014] On the other hand, a method for detecting and alarming burner leaks on a flame cleaner uses the aforementioned device to perform the following steps:

[0015] S1. The burner devices are spaced out and partitioned by the sealing strip, so that each burner device forms an independent unit;

[0016] S2. Each burner device is equipped with a corresponding device;

[0017] S3. When one or more of the burner devices leak, the leaked gas reaches the sensor along the gas guide groove, gas guide hole, and gas guide pipe in the corresponding device. The sensor detects the gas pressure and feeds the signal back to the PC terminal. The PC terminal determines whether there is a continuous leak in the burner device. If yes, proceed to step S4; otherwise, end.

[0018] S4. The alarm on the human-machine interface sounds an alarm and displays the number of the corresponding leaking burner device.

[0019] Preferably, in step S3, the PC terminal makes the following determination:

[0020] When the gas pressure reaches 50 kPa and lasts for 3 seconds, it is confirmed that the burner device has a continuous leakage.

[0021] Preferably, step S4 further includes:

[0022] Immediately cut off the gas supply and end the operation.

[0023] The present invention provides a device and method for detecting and alarming burner leaks on a flame cleaner. When a leak occurs in the sealing structure of the burner device of the flame cleaner, it can detect, judge and alarm in time, avoid melting damage to the gas distributor or burner device of the flame cleaner, reduce the occurrence of production interruption accidents, and can directly lock the leaking burner device. It is convenient to use and maintain. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a single burner unit on the left / right side and a gas distributor;

[0025] Figure 2 yes Figure 1 A left-view diagram;

[0026] Figure 3 The device of the present invention is in Figure 1 A schematic diagram of the arrangement on the mating surface of the gas distributor;

[0027] Figure 4 This is a schematic diagram of an upper / lower side multi-burner device and a gas distributor;

[0028] Figure 5 The device of the present invention is in Figure 4 A schematic diagram of the arrangement on the mating surface of the gas distributor;

[0029] Figure 6 This is a schematic flowchart of the detection method of the present invention. Detailed Implementation

[0030] To better understand the above-mentioned technical solutions of the present invention, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0031] Combination Figure 3 As shown, the device for detecting and alarming burner leaks on a flame cleaner provided by the present invention is located on the mating surface 4 of the gas distributor and includes a gas guiding structure, a gas guiding pipeline 5 and a sensor 6.

[0032] The gas guiding structure is located on the mating surface 4 of the gas distributor. One end of the gas guiding pipe 5 is connected to the gas guiding structure, and the other end is connected to the sensor 6. The gas guiding pipe 5 is arranged in a suitable position so as not to hinder the operation of the equipment and to ensure a slightly better working environment. The sensor 6 converts the gas pressure signal into an electrical signal and transmits it to the PC terminal, where it is displayed on the human-machine interface of the PC terminal.

[0033] The number of devices in this invention needs to be matched with the number of burner devices.

[0034] Continue to refer to Figure 3The gas guiding structure includes multiple horizontally parallel gas guiding grooves 7 formed on the mating surface 4 of the gas distributor, and gas guiding holes 8 intersecting perpendicularly along the gas guiding grooves 7.

[0035] One end of the air guide pipe 5 is connected to the end of the air guide hole 8.

[0036] Combined Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, generally, one burner device 2 is installed on each of the left and right sides, and one burner device 2 on each of the left and right sides and six to nine burner devices 2 on each of the upper and lower sides are arranged according to the cross-sectional dimensions of the slab.

[0037] Each burner device 2 on the upper / lower side surface is divided into partitions by a sealing strip 9, so that each partition corresponding to the burner device 2 forms an independent unit.

[0038] The PC terminal's human-machine interface is equipped with an alarm.

[0039] In operation, the upper preheating block of the burner device 2 is supplied with oxygen 10 (pressure range 100KPa~360KPa) and gas 11 (pressure range 98KPa~155KPa), the lower preheating block is supplied with gas 12 (pressure range 50KPa~55KPa), and the gap formed between the upper and lower preheating blocks is supplied with oxygen 13 (pressure range 220KPa~260KPa). Therefore, it can be seen that the gas pressure range in each independent unit of the burner device 2 is 50KPa~360KPa.

[0040] Recombined Figures 1 to 6 As shown, the present invention also provides a detection method for detecting and alarming burner leaks on a flame cleaner, wherein the device of the present invention is used to perform the following steps:

[0041] S1. Before the normal production cleaning operation, the burner devices 2 are divided into intervals by the sealing strip 9 so that each burner device 2 forms an independent unit.

[0042] S2. Each burner device 2 is equipped with a corresponding device of the present invention to detect the gas pressure inside the corresponding burner device 2;

[0043] S3. When one or more burner devices 2 are leaking, the leaked gas (oxygen or fuel gas) reaches the sensor 6 along the gas guide groove 7, gas guide hole 8, and gas guide pipe 5 in the corresponding device. The sensor 6 detects the gas pressure and converts the gas pressure signal into an electrical signal to feed back to the PC terminal. The PC terminal determines whether there is a continuous leak in the burner device 2. If yes, proceed to step S4; otherwise, return to step S1.

[0044] S4. The alarm on the human-machine interface of the PC terminal sounds an alarm and displays the number of the corresponding leaking burner device 2.

[0045] In step S3 above, the PC terminal makes the following judgment:

[0046] When the gas pressure reaches 50 kPa and lasts for 3 seconds, it is confirmed that the burner device 2 has a continuous leakage phenomenon.

[0047] Step S4 above also includes: immediately cutting off the gas supply and ending the operation after the alarm sounds.

[0048] In summary, the device and method for detecting and alarming burner leaks on a flame cleaner of the present invention is a system for collecting, judging, detecting, and alarming leaking gases. When the above-mentioned leakage occurs, it can identify one or more burner devices that are leaking, detect whether the leaking gas is oxygen or fuel gas, and issue an alarm through the human-machine interface to remind the operator to stop the machine in time and check and deal with the locked burner devices to avoid equipment damage or fire accidents.

[0049] Those skilled in the art should recognize that the above embodiments are merely illustrative of the present invention and are not intended to limit the present invention. Any variations or modifications to the above embodiments that are within the spirit and essence of the present invention will fall within the scope of the claims of the present invention.

Claims

1. A device for detecting and alarming burner leaks on a flame cleaner, disposed on the mating surface of a gas distributor, characterized in that: This includes the air delivery structure, air delivery pipeline, and sensors; The gas guiding structure is disposed on the mating surface of the gas distributor. One end of the gas guiding pipe is connected to the gas guiding structure, and the other end is connected to the sensor. The signal from the sensor is transmitted to the PC terminal and displayed on the human-machine interface of the PC terminal. The gas guiding structure includes multiple parallel gas guiding grooves formed on the mating surface of the gas distributor, and gas guiding holes perpendicularly intersecting the gas guiding grooves. The number of these devices is adapted to the number of burner devices. The burner devices are separated into partitions by sealing strips, and each burner device's corresponding partition forms an independent unit. When one or more of the burner devices leak, the leaked gas travels along the corresponding gas guide groove, gas guide hole, and gas guide pipe to the sensor. The sensor detects the gas pressure and sends a signal back to the PC terminal, which then determines whether the burner device is experiencing a continuous leak.

2. The device for detecting and alarming burner leakage on a flame cleaner according to claim 1, characterized in that: One end of the air guide pipe is connected to the air guide hole.

3. The device for detecting and alarming burner leakage on a flame cleaner according to claim 1, characterized in that: The number of burner devices is 1 on each of the left and right sides, and 6 to 9 on each of the top and bottom sides.

4. The device for detecting and alarming burner leakage on a flame cleaner according to claim 1, characterized in that: The human-machine interface is equipped with an alarm.

5. A method for detecting and alarming burner leakage on a flame cleaner, characterized in that, The following steps are performed using the apparatus as described in any one of claims 1-4: S1. The burner devices are spaced out and partitioned by the sealing strip, so that each burner device forms an independent unit; S2. Each burner device is equipped with a corresponding device; S3. When one or more of the burner devices leak, the leaked gas reaches the sensor along the gas guide groove, gas guide hole, and gas guide pipe in the corresponding device. The sensor detects the gas pressure and feeds the signal back to the PC terminal. The PC terminal determines whether there is a continuous leak in the burner device. If yes, proceed to step S4; otherwise, end. The PC terminal determination in step S3 is as follows: When the gas pressure reaches 50 kPa and lasts for 3 seconds, it is confirmed that the burner device has a continuous leakage. S4. The alarm on the human-machine interface sounds an alarm and displays the number of the corresponding leaking burner device.

6. The detection method for detecting and alarming burner leakage on a flame cleaner according to claim 5, characterized in that, Step S4 also includes: Immediately cut off the gas supply and end the operation.

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