Industrial flue gas on-line monitoring alarm device

Abstract

The utility model discloses an industrial flue gas on-line monitoring alarm device, which belongs to the field of environmental protection and comprises a monitoring box, an air draft device, an infrared analysis device and an alarm device are arranged in the monitoring box, and the air draft device is connected with the infrared analysis device through a corrosion-resistant pipeline. Compared with the prior art, the device has the advantages that dust in flue gas is filtered through the detachable dust removal filter screen in the filter device, and when the detachable dust removal filter screen is not ventilated, dust removal operation is carried out on the detachable dust removal filter screen through the pulse dust removal device; when rainwater flows in, the air inlet and the air outlet of the filter box are located in the left side and the right side, so that the rainwater can flow into the detachable storage box to be collected, and the safety of the air draft device is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of environmental protection, specifically to an online monitoring and alarm device for industrial flue gas. Background Technology

[0002] With the development of social industrialization, while people are improving their quality of life, they are also suffering from industrial pollution. In order to respond to the national call for sustainable development, industrial pollutants must be purified before they can be discharged. In order to monitor the industrial emissions of factories, government departments usually install online monitoring and alarm devices for industrial flue gas near the factory area to prevent illegal emissions of industrial waste gas.

[0003] Existing industrial flue gas online monitoring and alarm devices typically use an exhaust system to draw corrosion-resistant pipes connected to the flue gas outlet into an infrared analysis device inside the monitoring box. The infrared analysis device analyzes the harmful components of the flue gas, and if the flue gas does not meet the standards after analysis, the infrared analysis device will trigger the alarm device, which will sound an alarm.

[0004] This method of real-time monitoring of flue gas using infrared analysis devices can effectively warn manufacturers that violate emission regulations. However, industrial flue gas often contains a lot of dust. Once this dust enters the infrared analysis device and the exhaust system, it will greatly shorten the lifespan of the machine. Furthermore, if it rains, rainwater is likely to flow into the exhaust system through the pipes, causing the instrument to become damp. Utility Model Content

[0005] The technical problem this invention aims to solve is that existing industrial flue gas online monitoring and alarm devices cannot effectively filter dust during gas extraction and are easily affected by moisture.

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: an industrial flue gas online monitoring and alarm device, including a monitoring box, wherein the monitoring box is equipped with an exhaust device, an infrared analysis device and an alarm device. The exhaust device is connected to the infrared analysis device through a corrosion-resistant pipe. A waterproof dust removal device is provided on one side of the corrosion-resistant pipe at the exhaust port end of the exhaust device. The waterproof dust removal device includes a filter device connected to the flue gas pipe and a pulse dust removal device located at the outlet of the filter device. A three-way pipe is provided between the outlet of the filter device and the blowing hole of the pulse dust removal device.

[0007] As an improvement, the air outlet of the filter device, the air blowing hole of the pulse dust collector, and the corrosion-resistant pipe inlet at the exhaust port of the exhaust device are all connected by a T-junction pipe, and the air blowing hole of the pulse dust collector is parallel to the air outlet of the filter device.

[0008] As an improvement, the filtration device includes a filter box, several removable dust filters located inside the filter box, and a removable storage box located below the removable dust filters. The removable storage box passes through the side wall of the filter box and is connected to the side groove of the filter box by a sealing gasket. The filter box has a slot for fixing the removable dust filters inside.

[0009] As an improvement, the bottom surface of the filter box is provided with a tray rack.

[0010] As an improvement, both the tray frame and the pulse dust removal device are connected to the side wall at the top of the monitoring box by welding.

[0011] As an improvement, the infrared analysis device is connected to the alarm device via a data cable, and the ventilation device, pulse dust removal device, infrared analysis device, and alarm device are all connected to the power supply via wires.

[0012] The advantages of this utility model compared with the prior art are as follows: This device filters dust in flue gas through a detachable dust removal filter in the filtration device. When the detachable dust removal filter is not ventilated, it is cleaned by a pulse dust removal device. When rainwater flows in, the air inlet and outlet of the filter box are located on the left and right sides, so the rainwater will flow into the detachable storage box for collection, thereby ensuring the safety of the exhaust device. Attached Figure Description

[0013] Figure 1 This is a front view of the overall structure of an online monitoring and alarm device for industrial flue gas according to this utility model.

[0014] Figure 2 This is a rear view of the overall structure of an industrial flue gas online monitoring and alarm device according to this utility model.

[0015] Figure 3 This is an exploded view of the filter device of an industrial flue gas online monitoring and alarm device according to this utility model.

[0016] Figure 4 This is a cross-sectional view of the filter device of an industrial flue gas online monitoring and alarm device according to this utility model.

[0017] As shown in the figure: 1. Monitoring box; 2. Exhaust device; 3. Infrared analysis device; 4. Alarm device; 5. Corrosion-resistant pipe; 6. Waterproof dust removal device; 61. Filter device; 611. Filter box; 612. Removable dust filter; 613. Removable storage box; 614. Sealing gasket; 615. Card slot; 616. Tray rack; 62. Pulse dust removal device; 63. T-junction pipe. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings.

[0019] As per the instruction manual Figure 1 , 2 As shown, the system includes a monitoring box 1. Inside the monitoring box 1, there is an exhaust device 2, an infrared analysis device 3, and an alarm device 4. The infrared analysis device 3 is connected to the alarm device 4 via a data cable. The exhaust device 2, the infrared analysis device 3, and the alarm device 4 are all connected to a power source via wires. The exhaust device 2 is connected to the infrared analysis device 3 via a corrosion-resistant pipe 5. The air inlet of the exhaust device 2 is inserted into the corrosion-resistant pipe 5, which passes through the top wall of the monitoring box 1 and is inserted into the exhaust pipe for collection. The corrosion-resistant pipe 5 at the air outlet of the infrared analysis device 3 passes through the side wall of the monitoring box 1 to discharge the detected exhaust gas.

[0020] A waterproof dust removal device 6 is provided on one side of the corrosion-resistant pipe 5 at the exhaust port end of the exhaust device 2. The waterproof dust removal device 6 includes a filter device 61 connected to the flue gas pipe and a pulse dust removal device 62 located at the outlet of the filter device 61. A three-way pipe 63 is provided between the outlet of the filter device 61 and the air blowing hole of the pulse dust removal device 62. The outlet of the filter device 61, the air blowing hole of the pulse dust removal device 62, and the inlet of the corrosion-resistant pipe 5 at the exhaust port end of the exhaust device 2 are all connected through the three-way pipe 63. The air blowing hole of the pulse dust removal device 62 is parallel to the outlet of the filter device 61. The pulse dust removal device 62 is connected to a power source using a wire. The base of device 62 is welded to the top of monitoring box 1. The interface of the three-way pipe 63 is respectively fitted onto the air blowing hole of pulse dust collector 62, the air outlet of filter device 61, and the inlet of corrosion-resistant pipe 5 at the exhaust port of exhaust device 2. This allows the flue gas to be normally drawn into exhaust device 2 when pulse dust collector 62 is not in use. When filter device 61 is blocked, because the air outlet of filter device 61, air blowing hole of pulse dust collector 62, and interface of three-way pipe 63 are concentric, the gas blown out by pulse dust collector 62 can be blown into filter device 61, thereby solving the blockage problem. In order to maintain the airtightness, all pipes are fixedly connected with corrosion-resistant sealant.

[0021] As per the instruction manual Figure 2 , 3As shown in Figure 4, the filtration device 61 includes a filter box 611, several removable dust filters 612 located inside the filter box 611, and a removable storage box 613 located below the removable dust filters 612. The removable storage box 613 passes through the side wall of the filter box 611 and is connected to the side groove of the filter box 611 by a sealing gasket 614. The filter box 611 has a slot 615 inside for fixing the removable dust filters 612. The bottom surface of the filter box 611 is provided with a tray frame 616, which is connected to the side wall of the top of the monitoring box 1 by welding. The filter box 611 is a single open box with a special sealing cover on the top. The sealing gasket 614 is placed on the removable dust filters 612. On the side wall of the storage box 613, the detachable storage box 613 is pushed into the bottom hole of the filter box 611, so that the upper side wall of the detachable storage box 613 serves as the supporting bottom surface for the detachable dust filter 612, and the last slot 615 is located directly above the side wall of the detachable storage box 613. This ensures that all flue gas must be filtered before flowing into the exhaust device 2, ensuring the safety of the exhaust device 2. Because the flue gas inlet and outlet are located on the left and right sides of the filter box 611, rainwater entering the filter box 611 will flow into the detachable storage box 613, thereby ensuring the dryness of the exhaust device 2. The filter box 611 is placed on the tray frame 616 to ensure the stability of the filter box 611 (the tray frame 616 is welded to the top of the monitoring box 1).

[0022] In practical implementation, the monitoring box 1 is fixed to one side of the flue gas duct using nails or other objects. The corrosion-resistant pipe 5 is installed on the air inlet of the filter box 611 and the air filling port of the flue gas duct. The flue gas flows through the filter box 611, the three-way pipe 63, the exhaust device 2, and the infrared analysis device 3. When the content of hazardous gases in the flue gas exceeds the standard, the infrared analysis device 3 will trigger the alarm device 4 through the data line, and the alarm device 4 will prompt relevant personnel to check the situation. When the ventilation is poor, the pulse dust removal device 62 is activated to perform dust removal operation on the detachable dust removal filter 612, and the dust in the detachable storage box 613 needs to be cleaned regularly.

[0023] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An online monitoring and alarm device for industrial flue gas, comprising a monitoring box (1), wherein the monitoring box (1) is equipped with an exhaust device (2), an infrared analysis device (3), and an alarm device (4), wherein the exhaust device (2) is connected to the infrared analysis device (3) via a corrosion-resistant pipe (5), characterized in that: The exhaust device (2) has a waterproof dust removal device (6) on one side of the corrosion-resistant pipe (5) at the exhaust port end. The waterproof dust removal device (6) includes a filter device (61) connected to the flue gas pipe and a pulse dust removal device (62) located at the air outlet of the filter device (61). A three-way pipe (63) is provided between the air outlet of the filter device (61) and the air blowing hole of the pulse dust removal device (62).

2. The industrial flue gas online monitoring and alarm device according to claim 1, characterized in that: The air outlet of the filter device (61), the air blowing hole of the pulse dust collector (62), and the inlet of the corrosion-resistant pipe (5) at the exhaust port of the exhaust device (2) are all connected by a three-way pipe (63). The air blowing hole of the pulse dust collector (62) is parallel to the air outlet of the filter device (61).

3. The industrial flue gas online monitoring and alarm device according to claim 1, characterized in that: The filtration device (61) includes a filter box (611), a plurality of removable dust filters (612) located inside the filter box (611), and a removable storage box (613) located below the removable dust filters (612). The removable storage box (613) passes through the side wall of the filter box (611). The removable storage box (613) is connected to the side groove of the filter box (611) through a sealing gasket (614). The filter box (611) has a slot (615) for fixing the removable dust filters (612) inside.

4. The industrial flue gas online monitoring and alarm device according to claim 3, characterized in that: The bottom surface of the filter box (611) is provided with a tray frame (616).

5. The industrial flue gas online monitoring and alarm device according to claim 4, characterized in that: The tray frame (616) and the pulse dust removal device (62) are both connected to the side wall at the top of the monitoring box (1) by welding.

6. The industrial flue gas online monitoring and alarm device according to claim 1, characterized in that: The infrared analysis device (3) is connected to the alarm device (4) via a data cable. The ventilation device (2), pulse dust removal device (62), infrared analysis device (3) and alarm device (4) are all connected to the power supply via wires.

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