A maintenance device for exhaust gas purification treatment equipment

Abstract

The utility model relates to a kind of maintenance devices of dismantling-free for waste gas purification treatment equipment, belong to waste gas purification technical field. Including purification box, filter cartridge unit is equipped in the purification box body, first steam pipeline and second steam pipeline are arranged in the purification box body, first steam nozzle is equipped on the first steam pipeline, first steam valve is equipped on the first steam pipeline;Second steam nozzle is equipped on the second steam pipeline, second steam valve is equipped on the second steam pipeline;Air inlet is equipped between the purification box body and waste gas collection box body, first air door is equipped in the air inlet outlet;The inner chamber of purification box is connected with exhaust fan by exhaust pipe, second air door is equipped in the exhaust pipe;Filter cartridge unit import side, export side are equipped with pressure transmitter respectively, two the pressure transmitter is connected with pressure controller signal respectively. The present application is convenient to operate, save time and labour, reduces filter cartridge cleaning cost.

Description

Technical Field

[0001] This utility model relates to a maintenance-free device for waste gas purification equipment, belonging to the field of waste gas purification technology. Background Technology

[0002] Waste gas purification treatment refers to the treatment and purification of waste gases generated during industrial production, energy utilization, and waste disposal to meet emission standards or recycling requirements. Waste gas purification equipment mainly refers to equipment used to treat and purify industrial waste gases generated in industrial sites, such as particulate matter, flue gas, odorous gases, and toxic and harmful gases.

[0003] After a period of operation, the filter fiber cartridges in the high-efficiency fiber filtration zone of the exhaust gas purification equipment will absorb oil, lint, and various chemical additives. These residues gradually clog the cartridges, reducing the exhaust gas output and making discharge difficult. At this point, the machine must be shut down, the old filter fiber cartridges removed, and new filter fiber screens installed before restarting the equipment. Furthermore, the removed filter fiber screens, still containing oil, lint, and various chemical additive residues, must be handed over to a qualified treatment organization for disposal. This process is not only labor-intensive and time-consuming but also expensive. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a non-disassembly maintenance device for waste gas purification and treatment equipment, which is convenient to operate, saves time and effort, and reduces the cost of cleaning filter fiber mesh.

[0005] The technical solution adopted by this utility model to solve the above problems is as follows: a maintenance-free device for waste gas purification equipment, comprising a purification chamber, a filter cartridge unit disposed inside the purification chamber, a first steam pipe and a second steam pipe passing through the purification chamber, the first steam pipe being located at the inlet side of the filter cartridge unit, and having a plurality of first steam nozzles and a first steam valve; the second steam pipe being located at the outlet side of the filter cartridge unit, and having a plurality of second steam nozzles and a second steam valve; and a waste gas collection chamber being disposed on the side of the purification chamber. An air inlet is provided between the purification chamber and the waste gas collection chamber, and a first damper is provided at the outlet of the air inlet; the inner cavity of the purification chamber is connected to an exhaust fan through an exhaust pipe, and a second damper is provided inside the exhaust pipe; the first steam valve, the second steam valve, the first damper, and the second damper are signal-connected to the main controller; pressure transmitters are respectively provided on the inlet and outlet sides of the filter cartridge unit, one pressure transmitter is used to detect the pressure on the inlet side of the filter cartridge unit, and the other pressure transmitter is used to detect the pressure on the outlet side of the filter cartridge unit; the two pressure transmitters are signal-connected to the pressure controller, and the pressure controller is signal-connected to the main controller.

[0006] The pressure controller is connected to the audible and visual alarm signal.

[0007] The filter cartridge unit includes multiple filter cartridges arranged side by side.

[0008] The first steam nozzle and the second steam nozzle are directed toward the filter cartridge unit.

[0009] It also includes a first thermocouple and a second thermocouple. The first thermocouple is located on the inlet side of the filter cartridge unit, and the second thermocouple is located on the outlet side of the filter cartridge unit. The first thermocouple and the second thermocouple are connected to the main controller via signal.

[0010] Compared with existing technologies, the advantages of this utility model are as follows: A maintenance-free device for waste gas purification equipment detects the pressure at the inlet and outlet of the filter cartridge unit using a first and second pressure transmitter, compares it with the pressure difference set by the pressure controller, and then controls the first damper to close the air inlet, the second damper to close the exhaust pipe, and the first steam nozzle to spray steam to preheat the inner cavity of the purification chamber, thereby softening the oil adsorbed on the filter cartridge element; then, it controls the second damper to open the exhaust pipe and the second steam valve to open, allowing the steam sprayed from the second steam nozzle to wash the softened oil on the filter cartridge. This application is convenient to operate, saves time and labor, and reduces the cost of filter cartridge cleaning. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of a maintenance-free device for a waste gas purification and treatment equipment according to an embodiment of the present invention; In the diagram, 1 is the purification chamber, 2 is the filter cartridge, 3 is the first damper, 4 is the first steam nozzle, 5 is the first steam pipeline, 6 is the first pressure transmitter, 7 is the first thermocouple, 8 is the second steam pipeline, 9 is the second steam nozzle, 10 is the second pressure transmitter, 11 is the second thermocouple, 12 is the exhaust pipe, 13 is the second damper, 14 is the exhaust fan, and 15 is the waste gas collection chamber. Detailed Implementation

[0012] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0013] like Figure 1As shown in this embodiment, a maintenance-free device for waste gas purification equipment includes a purification chamber 1. A filter cartridge unit is installed inside the purification chamber 1. A first steam pipe 5 and a second steam pipe 8 pass through the purification chamber 1. The first steam pipe 5 is located at the inlet side of the filter cartridge unit and has several first steam nozzles 4 evenly distributed along the length of the filter cartridge unit. A first steam valve is also installed on the first steam pipe. The second steam pipe 8 is located at the outlet side of the filter cartridge unit and has several second steam nozzles 9 evenly distributed along the length of the filter cartridge unit. A second steam valve is also installed on the second steam pipe. The first steam nozzles 4 and second steam nozzles 9 are arranged symmetrically, and their spray directions are respectively directed towards the filter cartridge unit. A waste gas collection box 15 is provided on the side of the purification chamber 1. An air inlet is provided between the waste gas collection box 15 and the purification chamber 1, connecting the inner cavity of the waste gas collection box 15 with the inner cavity of the purification chamber 1. An air outlet is provided on the top of the purification chamber 1, which is connected to an exhaust fan 14 via an exhaust pipe 12. When the exhaust fan 14 is turned on, the waste gas in the waste gas collection box flows into the purification chamber through the air inlet. The filter cartridge unit filters the waste gas before it is discharged through the exhaust pipe. A first damper 3 is provided at the air inlet, which can adjust the opening of the air inlet. A second damper 13 is provided inside the exhaust pipe 12, which can adjust the opening of the exhaust pipe 12. A first pressure transmitter 6 is installed on the inlet side of the filter cartridge unit to detect the pressure at the inlet side. A second pressure transmitter 10 is installed on the outlet side of the filter cartridge unit to detect the pressure at the outlet side. Both the first and second pressure transmitters 6 and 10 are connected to the pressure controller. A first steam valve, a second steam valve, a first damper, a second damper, and the pressure controller are connected to the main controller. The pressure controller receives the pressure signals from the first and second pressure transmitters 6 and 10, compares them with a set pressure difference value, and then outputs a signal to the main controller. The main controller controls the opening degree of the first and second dampers and controls the opening or closing of the first and second steam valves.

[0014] The filter cartridge unit includes multiple filter cartridges 2 arranged side by side.

[0015] The pressure controller is also connected to an audible and visual alarm. The controller has two pressure differential settings: a high pressure differential and a low pressure differential. When the pressure difference between the inlet and outlet sides of the filter cartridge unit reaches the low pressure differential, the audible and visual alarm is triggered. When the pressure difference reaches the high pressure differential, the audible and visual alarm is triggered again, and the stenter and exhaust gas purification equipment are forcibly shut down. When the audible and visual alarm sounds, the cleaning personnel promptly activate the maintenance-free device. The main controller closes the air inlet with the first damper and the exhaust pipe with the second damper, while opening the first steam valve. This allows steam to spray from the first steam nozzle, preheating the inner cavity of the purification chamber and softening the oil adsorbed on the filter cartridge. After reaching the set temperature and maintaining it for a period, the main controller opens the exhaust pipe with the second damper and the second steam valve. The steam from the second steam nozzle washes away the softened oil on the filter cartridge. After the set cleaning time, the cleanliness of the filter cartridge surface is manually assessed. If it does not meet the operational standards, the maintenance-free device is activated again. If the filter cartridge is ready for operation after washing, the maintenance-free device is turned off, and the waste gas purification equipment can be put into normal operation. Opening the second damper during oil washing is to prevent excessive pressure inside the purification chamber from breaching the overpressure explosion-proof vent.

[0016] The system also includes a first thermocouple 7 and a second thermocouple 11. The first thermocouple is located at the inlet side of the filter cartridge unit, and the second thermocouple is located at the outlet side of the filter cartridge unit. The first and second thermocouples are used to detect the temperature inside the purification chamber. The first and second thermocouples are respectively connected to the main controller. When either the first or second thermocouple detects an abnormal temperature exceeding the set value, the system will automatically shut down the stenter and the exhaust gas purification equipment. At the same time, the main controller controls the second damper to close the exhaust pipe and open the first and second steam valves, causing the first and second steam nozzles to spray steam to extinguish the fire inside the purification chamber.

[0017] The pressure at the inlet and outlet of the filter cartridge unit is detected by a first and a second pressure transmitter, and compared with the pressure difference set by the pressure controller. This, in turn, controls the first damper to close the air inlet, the second damper to close the exhaust pipe, and the first steam nozzle to spray steam, preheating the inner cavity of the purification chamber and softening the oil adsorbed on the filter cartridge element. Then, the second damper is controlled to open the exhaust pipe, and the second steam valve is opened, allowing the steam sprayed from the second steam nozzle to wash away the softened oil on the filter cartridge. This application is convenient to operate, saves time and labor, and reduces filter cartridge cleaning costs.

[0018] In addition to the above embodiments, this utility model also includes other implementation methods. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of this utility model.

Claims

1. A device for maintenance without disassembly of an exhaust gas purification treatment apparatus, characterized by: The system includes a purification chamber containing a filter cartridge unit. A first steam pipe and a second steam pipe pass through the purification chamber. The first steam pipe is located at the inlet side of the filter cartridge unit and includes several first steam nozzles and a first steam valve. The second steam pipe is located at the outlet side of the filter cartridge unit and includes several second steam nozzles and a second steam valve. A waste gas collection chamber is located on the side of the purification chamber. An air inlet is located between the purification chamber and the waste gas collection chamber, and a first damper is located at the outlet of the air inlet. The inner cavity of the purification chamber is connected to an exhaust fan via an exhaust pipe, and a second damper is located within the exhaust pipe. The first steam valve, the second steam valve, the first damper, and the second damper are signal-connected to a main controller. Pressure transmitters are located at the inlet and outlet sides of the filter cartridge unit. One pressure transmitter detects the pressure at the inlet side of the filter cartridge unit, and the other detects the pressure at the outlet side. Both pressure transmitters are signal-connected to a pressure controller, which is signal-connected to the main controller.

2. The device according to claim 1, wherein: The pressure controller is connected to the audible and visual alarm signal.

3. The device according to claim 1, wherein: The filter cartridge unit includes multiple filter cartridges arranged side by side.

4. The maintenance-free device for waste gas purification and treatment equipment according to claim 1, characterized in that: The first steam nozzle and the second steam nozzle are directed toward the filter cartridge unit.

5. The device according to claim 1, wherein: It also includes a first thermocouple and a second thermocouple. The first thermocouple is located on the inlet side of the filter cartridge unit, and the second thermocouple is located on the outlet side of the filter cartridge unit. The first thermocouple and the second thermocouple are connected to the main controller via signal.

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