Environment-friendly detection tail gas collecting device

Abstract

The utility model belongs to the technical field of tail gas collection, and particularly relates to an environment-friendly detection tail gas collection device which comprises a gas inlet, and one end of the gas inlet is communicated with a gas bin; tail gas is collected in the device through the air exhauster, then the tail gas is filtered through the filter screen, and finally the filtered tail gas is discharged out of the device through the air exhauster, so that the tail gas is collected and filtered; meanwhile, the filter screen can be conveniently mounted and dismounted, so that the maintenance difficulty is reduced; through the design of an air exhaust structure, a second piston can be extracted by pulling a pull rod, then tail gas is stored in a gas collecting pipe according to the principle of pressure difference, then tail gas to be detected can be extracted and detected, finally, the tail gas can be discharged into the device by inserting the structure back into the device, and the residual tail gas is filtered. Therefore, the problems that the air quality of the atmosphere is influenced because the gas can only be released into the atmosphere after the gas is detected, and the method contrary to the environmental protection concept are solved.

Description

Technical Field

[0001] This utility model belongs to the field of exhaust gas collection technology, specifically an environmental protection detection exhaust gas collection device. Background Technology

[0002] Ship exhaust gas is the waste gas emitted by ships during operation; it mainly consists of gases produced by burning fuel, particulate matter, and water vapor. From an environmental perspective, harmful substances in ship exhaust gas may have a certain impact on the atmospheric and aquatic environment. For the shipping industry, reducing ship exhaust gas pollution emissions has become an important task, requiring technological improvements and the use of clean fuels to reduce its negative impact on the environment. Exhaust gas collection devices are generally used to collect ship exhaust gas during environmental monitoring.

[0003] Exhaust gas collection devices typically consist of an inlet, a filtration system, a storage container, and an emission control mechanism. The inlet guides the exhaust gas into the device. The filtration system generally includes multiple layers of filters and adsorption materials, effectively removing particulate matter, harmful substances, and odors from the exhaust gas. The storage container temporarily stores the collected exhaust gas. The emission control mechanism controls the emission of the exhaust gas or performs further treatment as needed. Its principle is based on physical filtration and chemical adsorption. When the exhaust gas enters the device, it undergoes multiple layers of filtration and adsorption, trapping harmful substances. The purified gas can then be discharged as required or reused.

[0004] Existing exhaust gas collection devices have shortcomings in processing the detected gas, which means that the gas can only be released into the atmosphere after detection, thus affecting air quality and contradicting environmental protection principles. Furthermore, existing exhaust gas collection devices are difficult to replace filters, which increases the difficulty of filter installation and prolongs the time required for exhaust gas collection. The complex installation method also increases the difficulty of device maintenance. Therefore, an environmentally friendly exhaust gas collection device is proposed to address the above problems. Utility Model Content

[0005] To overcome the shortcomings of existing technologies and address the problems of existing equipment, this utility model proposes an environmentally friendly exhaust gas collection device.

[0006] The technical solution adopted by this utility model to solve its technical problem is an environmental protection detection exhaust gas collection device, including an air inlet, one end of which is connected to an air chamber. A filter layer is provided in the center of the air chamber, and a slot is opened at the top of the filter layer. A limit box is installed inside the slot, and two sets of baffles are provided inside the limit box. A handle is welded to the top of the baffle. A filter screen is connected to the bottom of the baffle. An air outlet is connected to one side of the air chamber, and an exhaust fan is connected to the other end of the air outlet. An insertion hole is opened at the top of the side of the air chamber away from the exhaust fan. An exhaust structure is provided inside the insertion hole. The exhaust structure includes a piston tube, and a rectangular through hole is opened on the top side of the piston tube. With this structural design, exhaust gas can be collected inside the device by an exhaust fan of model KNF N86KNE, then filtered by a filter screen, and finally discharged from the device by the exhaust fan. This method is used to collect and filter exhaust gas.

[0007] Preferably, the bottom of the rectangular perforation on the top side of the piston tube is connected to the slide groove; a vent hole is opened on one side of the piston tube, and the vent hole is connected to the slide groove; a pull rod is provided inside the piston tube, and two sets of No. 1 pistons are provided outside the pull rod, and the outer diameter of the No. 1 piston is the same as the diameter of the slide groove; a gap is provided between the two sets of No. 1 pistons; this structural design increases the stability and robustness of the device operation.

[0008] Preferably, the piston tube has a circular perforation at its center, which connects to a threaded ring. A second piston is located inside the threaded ring. The threaded ring is rotatably connected to a threaded groove. The outside of the threaded groove connects to a gas collecting tank. A rubber piston is located at the top of the gas collecting tank and is positioned inside the gas chamber. The threaded ring is placed between two sets of first pistons. The diameter of the second piston matches the diameter of the gas collecting tank. Through the design of the suction structure, the second piston can be pulled up by pulling a lever. Then, the exhaust gas is stored inside the gas collecting tube by the principle of pressure difference. The exhaust gas to be tested can then be extracted and tested. Finally, the exhaust gas can be discharged into the device by reinstalling the structure. The remaining exhaust gas is then filtered, thus avoiding the situation where the tested exhaust gas cannot be filtered.

[0009] The advantages of this utility model are:

[0010] This utility model collects exhaust gas inside the device using a vacuum pump, filters it through a filter, and then discharges the filtered exhaust gas out of the device using the same vacuum pump. This method facilitates the collection and filtration of exhaust gas. It also simplifies the installation and removal of the filter, avoiding increased installation difficulty that would prolong exhaust gas collection time and complicate maintenance. The vacuum pump design allows the piston to be pulled up by a lever, storing the exhaust gas inside the collection pipe due to pressure difference. The exhaust gas to be tested can then be extracted and analyzed. Finally, the exhaust gas is discharged back into the device by reinstalling the pump, and any remaining exhaust gas is filtered. This avoids the problem of releasing the tested gas into the atmosphere, which negatively impacts air quality and contradicts environmental principles. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the overall structure of the device;

[0013] Figure 2 This is a schematic diagram of the back structure of the device;

[0014] Figure 3 This is a schematic diagram of the internal structure of the device;

[0015] Figure 4 This is a schematic diagram of the filter plate structure;

[0016] Figure 5 This is a schematic diagram of the air extraction structure;

[0017] In the diagram: 1. Air inlet; 2. Piston tube; 3. Handle; 4. Filter layer; 5. Air chamber; 6. Air outlet; 7. Vacuum pump; 8. Baffle; 9. Slot; 10. Air collection tank; 11. Air cavity; 12. Insertion hole; 13. Filter screen; 14. Limit box; 15. Pull rod; 16. Piston No. 1; 17. Threaded ring; 18. Piston No. 2; 19. Threaded groove; 20. Rubber piston; 21. Slide groove; 22. Vent hole. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0019] Please see Figure 1-5 As shown, an environmental protection detection exhaust gas collection device includes an air inlet 1, one end of which is connected to an air chamber 5. A filter layer 4 is located at the center of the air chamber 5, and a slot 9 is opened at the top of the filter layer 4. A limiting box 14 is installed inside the slot 9, and two sets of baffles 8 are provided inside the limiting box 14. A handle 3 is welded to the top of the baffle 8; a filter screen 13 is connected to the bottom of the baffle 8; an air outlet 6 is connected to one side of the air chamber 5, and a vacuum pump 7 is connected to the other end of the air outlet 6; an insertion hole 12 is opened at the top of the side of the air chamber 5 away from the vacuum pump 7, and a vacuuming structure is provided inside the insertion hole 12. The vacuuming structure includes a piston tube 2, and a rectangular through hole is opened on the top side of the piston tube 2; the bottom of the rectangular through hole on the top side of the piston tube 2 is connected to a sliding groove 21; a vent hole 22 is opened on one side of the piston tube 2, and the vent hole 22 is connected to the sliding groove 21; a pull rod 15 is provided inside the piston tube 2, and two sets of No. 1 movable parts are provided outside the pull rod 15. The outer diameter of the first piston 16 is the same as the diameter of the slide groove 21; there is a gap between the two sets of first pistons 16; when collecting and filtering exhaust gas, the operator connects the exhaust gas pipe to the air inlet 1 and starts the vacuum pump 7. Driven by the vacuum pump 7, the exhaust gas begins to enter the device along the air inlet 1, and then enters the air chamber 11 inside the air chamber 5. After passing through the filter layer 4, the exhaust gas will pass through the surface of the filter screen 13. Then, the exhaust gas is filtered by the filter screen 13. Finally, the filtered exhaust gas will be discharged from the device through the air outlet 6, thus completing the exhaust gas filtration operation. When replacing the filter screen 13 or repairing the device, the operator holds the handle 3 and pulls up the baffle 8. At this time, the limit box 14 will be pulled out from the slot 9. Then, the filter screen 13 is replaced by separating the filter screen 13 from the limit box 14, thus completing the replacement and repair operation of the device.

[0020] The piston tube 2 has a circular perforation at its center, which connects to a threaded ring 17. A second piston 18 is located inside the threaded ring 17. The threaded ring 17 is rotatably connected to a threaded groove 19. The outside of the threaded groove 19 connects to a gas collecting tank 10. A rubber piston 20 is located at the top of the gas collecting tank 10 and is positioned inside the gas chamber 11. The threaded ring 17 is placed between two sets of first pistons 16. The diameter of the second piston 18 is the same as the diameter of the orifice in the gas collecting tank 10. When collecting and sampling the exhaust gas, the exhaust gas enters the gas chamber 5 under the drive of the vacuum pump 7. Then, the operator pushes the lever 15. Under the push of the lever 15, the first piston 16 pushes the air inside the piston tube 2. Then, the second piston 18 inside the gas collection tank 10 begins to descend. When the second piston 18 is pushed to the bottom of the gas collection tank 10, the lever 15 is pulled back. At this time, under the action of the lever 155, the second piston 18 begins to rise. At the same time, the exhaust gas inside the air chamber 11 will enter the gas collection tank 10 through the rubber piston 20, thus completing the exhaust gas collection operation. At this time, the piston tube 2 is pulled out and the gas collection tank 10 is rotated to separate the gas collection tank 10 from the piston tube 2, thereby performing the exhaust gas collection and detection operation.

[0021] Working principle: When collecting and filtering exhaust gas, the operator connects the exhaust pipe to the inlet 1 and starts the vacuum pump 7. Driven by the vacuum pump 7, the exhaust gas enters the device through the inlet 1 and then into the air chamber 11 inside the air chamber 5. After passing through the filter layer 4, the exhaust gas passes through the surface of the filter screen 13, where it is filtered. Finally, the filtered exhaust gas exits the device through the outlet 6, thus completing the exhaust gas filtration process. When replacing the filter screen 13 or performing maintenance on the device, the operator holds the handle 3 and pulls up the baffle 8. This causes the limit box 14 to be pulled out of the slot 9. The filter screen 13 is then separated from the limit box 14. The replacement operation completes the replacement and maintenance of the device. When collecting and sampling the exhaust gas, the exhaust gas enters the gas chamber 5 under the drive of the vacuum pump 7. Then, the operator pushes the lever 15, which causes the first piston 16 to push the air inside the piston tube 2. Then, the second piston 18 inside the gas collection tank 10 begins to descend. When the second piston 18 is pushed to the bottom of the gas collection tank 10, the lever 15 is pulled back. At this time, the second piston 18 begins to rise under the action of the lever 155. At the same time, the exhaust gas inside the gas chamber 11 enters the gas collection tank 10 through the rubber piston 20, thus completing the exhaust gas collection operation. Then, the piston tube 2 is pulled out and the gas collection tank 10 is rotated to separate the gas collection tank 10 from the piston tube 2, thereby collecting and detecting the exhaust gas.

[0022] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An environmental protection detection exhaust gas collection device, characterized in that: It includes an air inlet (1), one end of which is connected to an air chamber (5). The air chamber (5) has a filter layer (4) at its center. The top of the filter layer (4) has a slot (9). A limit box (14) is installed inside the slot (9). The limit box (14) has two sets of baffles (8) inside. A handle (3) is welded to the top of the baffle (8). A filter screen (13) is connected to the bottom of the baffle (8). One side of the air chamber (5) is connected to an air outlet (6). The other end of the air outlet (6) is connected to a vacuum pump (7). The top of the side of the air chamber (5) away from the vacuum pump (7) has an insertion hole (12). The insertion hole (12) has a vacuum structure inside. The vacuum structure includes a piston tube (2). A rectangular through hole is opened on the top side of the piston tube (2).

2. The environmental protection detection exhaust gas collection device according to claim 1, characterized in that: The bottom of the rectangular perforation on the top side of the piston tube (2) is connected to the slide groove (21); a vent hole (22) is opened on one side of the piston tube (2), and the vent hole (22) is connected to the slide groove (21).

3. The environmental protection detection exhaust gas collection device according to claim 1, characterized in that: The piston tube (2) is provided with a pull rod (15) inside, and two sets of first pistons (16) are provided outside the pull rod (15). The outer diameter of the first piston (16) is the same as the diameter of the slide groove (21); there is a gap between the two sets of first pistons (16).

4. The environmental protection detection exhaust gas collection device according to claim 1, characterized in that: The piston tube (2) has a circular perforation in the center, which is connected to a threaded ring (17). The threaded ring (17) has a second piston (18) inside. The threaded ring (17) is rotatably connected to a threaded groove (19).

5. The environmental protection detection exhaust gas collection device according to claim 4, characterized in that: The external connection of the threaded groove (19) is to the gas collection tank (10), and the top of the gas collection tank (10) is provided with a rubber piston (20), which is located inside the gas chamber (11).

6. The environmental protection detection exhaust gas collection device according to claim 4, characterized in that: The threaded ring (17) is placed between the two sets of the first piston (16); the diameter of the second piston (18) is the same as the diameter of the gas collecting tank (10).

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