An environmental monitoring ventilation device for SF6 monitoring

Abstract

The utility model relates to a kind of SF6 monitoring's environmental monitoring ventilation device, belong to SF6 monitoring auxiliary ventilation technical field.The SF6 monitoring's environmental monitoring ventilation device, comprising: main air duct and the first fan group and first filter plate of fixed connection in main air duct inner wall, the filter mechanism includes the filter box of being set to one side of main air duct, the inside of the filter box is provided with second filter plate, the second filter plate will the inside of filter box be divided into storage compartment and ventilation storehouse, the storage compartment is set to the below of ventilation storehouse;By the inside of filter box being divided into two spaces by second filter plate, gas and dust and other sundries entering the inside of filter box through air inlet are always in the state of circulation under the action of airflow, to reduce the probability of filter hole being blocked by dust adhering on filter plate surface, simultaneously by setting storage compartment, the storage amount of dust filtered by filter plate can be effectively increased, the frequency of cleaning filter plate is reduced.

Description

Technical Field

[0001] This utility model relates to the field of SF6 monitoring auxiliary ventilation technology, and in particular to an environmental monitoring ventilation device for SF6 monitoring. Background Technology

[0002] Sulfur hexafluoride (SF6) is a colorless, odorless, and chemically stable inert gas with excellent insulation and arc-quenching properties, widely used in electrical equipment. However, it decomposes under the influence of an electric arc, producing toxic substances, and its greenhouse potential is 23,900 times that of CO2, allowing it to remain in the atmosphere for 3,200 years. Monitoring SF6 can promptly detect leaks in electrical equipment, preventing toxic gases from harming human health, while simultaneously reducing greenhouse gas emissions and complying with environmental regulations. Therefore, an environmental monitoring and ventilation system is required for SF6 detection.

[0003] As shown in the reference case "A ventilation mechanism for an SF6 gas monitoring collection cabinet" (publication number CN219871228U), during the use of the SF6 gas monitoring collection cabinet, the servo motor is started, which drives the first threaded rod to rotate. The first threaded rod drives the reciprocating slider to move left and right along the direction of the limit rod. The reciprocating slider drives the electric fan to move left and right, thereby allowing the gas to be quickly discharged through three sets of dustproof ventilation plates. This mechanism, which uses multiple ventilation openings and a reciprocating electric fan to provide ventilation without dead angles, enhances the efficiency and effectiveness of the ventilation mechanism, thus improving its practicality.

[0004] Although the aforementioned application can quickly expel gas through the dustproof ventilation plate by moving the fan back and forth, since the mass of SF6 is greater than that of air, SF6 usually settles at the bottom of the atmosphere. Therefore, the airflow generated when ventilating SF6 can easily suck in dust and other debris, thus affecting the subsequent recycling and treatment of SF6. Furthermore, using a flat filter alone can easily cause the filter mesh to become clogged, thereby reducing the ventilation effect of SF6. Utility Model Content

[0005] Therefore, it is necessary to provide an environmental monitoring ventilation device for SF6 monitoring to address the problem that SF6 is easily mixed with dust during ventilation.

[0006] An environmental monitoring ventilation device for SF6 monitoring includes: a main air duct, a first fan assembly and a first filter plate fixedly connected to the inner wall of the main air duct;

[0007] The filtration mechanism includes a filter box disposed on one side of the main air duct. The filter box is provided with a second filter plate, which divides the interior of the filter box into a storage compartment and a ventilation compartment. The storage compartment is disposed below the ventilation compartment.

[0008] In one embodiment, the surface of the filter box is provided with an air inlet, which is connected to the interior of the main air duct, and an arc-shaped plate is provided at the air inlet of the filter box.

[0009] In one embodiment, the air inlet is connected to the storage compartment, and an arc-shaped plate is provided at the bottom corner of the storage compartment.

[0010] In one embodiment, the filter box has an air outlet at the end away from the air inlet, the air outlet is connected to the ventilation chamber, and a second fan assembly is provided between the air outlet and the ventilation chamber.

[0011] In one embodiment, the first filter plate is obliquely fixed to the inner walls of both sides of the main air duct, and a secondary air duct is provided on the side of the main air duct away from the filter box. The secondary air duct is arc-shaped and its two ends are connected to the main air duct.

[0012] In one embodiment, a baffle is fixedly connected to the inner wall of the main air duct, and the baffle is disposed at the connection between the inlet of the main air duct and the inlet of the secondary air duct.

[0013] In one embodiment, the outlet of the secondary air duct is located at one end of the first filter plate, and the inlet of the filter box is located at the other end of the first filter plate.

[0014] In one embodiment, a disassembly plate is inserted into the bottom of the filter box, and a sealing strip is provided at the end of the disassembly plate away from the handle. The inner wall of the filter box is provided with a sealing groove that cooperates with the sealing strip.

[0015] Beneficial effects

[0016] 1. By dividing the interior of the filter box into two spaces through the second filter plate, the air and dust entering the filter box through the air inlet are always in a state of circulation under the action of airflow, which reduces the probability of dust adhering to the filter plate surface and clogging the filter pores. At the same time, by setting up a storage compartment, the amount of dust filtered by the filter plate can be effectively increased, reducing the frequency of cleaning the filter plate and reducing the burden on the staff.

[0017] 2. By setting the filter plates inside the main air duct at an angle and setting secondary air ducts and baffles at one end of the first filter plate, a small amount of airflow is formed to blow away the impurities filtered on the surface of the first filter plate. This can clean the filtered material on the surface of the first filter plate in real time, effectively preventing the probability of clogging of the mesh of the first filter plate. The airflow blows the impurities filtered on the surface of the first filter plate into the filter box. Then, by setting the filter box at the other end of the first filter plate, the impurities on the surface of the first filter plate are collected, which facilitates the collection of dust and other impurities.

[0018] 3. By installing a removable disassembly plate at the bottom of the filter box, it is easier for staff to clean debris inside the filter box without disassembling the filter plate or filter box. This reduces the number of movable components inside the device, thereby reducing gaps caused by connections and improving the device's sealing performance. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a vertical sectional view of the present invention;

[0022] Figure 3 This is a horizontal sectional view of the present invention;

[0023] Figure 4 This is a cross-sectional view of the filter box of this utility model;

[0024] Figure 5 This is a schematic diagram showing the connection between the disassembly plate and the filter box of this utility model.

[0025] Figure label:

[0026] 100. Main air duct; 110. First fan assembly; 120. First filter plate; 200. Secondary air duct; 210. Baffle; 300. Filtration mechanism; 310. Filter box; 311. Air inlet; 320. Storage compartment; 330. Second filter plate; 340. Ventilation compartment; 350. Second fan assembly; 360. Air outlet; 370. Disassembly plate; 371. Sealing strip; 372. Sealing groove. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this specification belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0032] The following is combined with Figures 1-5 This invention describes an environmental monitoring ventilation device for SF6 monitoring.

[0033] In one embodiment, an environmental monitoring ventilation device for SF6 monitoring includes: a main air duct 100 and a first fan assembly 110 and a first filter plate 120 fixedly connected to the inner wall of the main air duct 100.

[0034] The filter mechanism 300 includes a filter box 310 disposed on one side of the main air duct 100. The filter box 310 is provided with a second filter plate 330, which divides the interior of the filter box 310 into a storage chamber 320 and a ventilation chamber 340. The storage chamber 320 is disposed below the ventilation chamber 340.

[0035] like Figure 3 , Figure 4 and Figure 5 As shown, the filter box 310 has an air inlet 311 on its surface, which is connected to the interior of the main air duct 100. An arc-shaped plate is provided at the air inlet 311 of the filter box 310, which is connected to the storage chamber 320. An arc-shaped plate is provided at the bottom corner of the storage chamber 320. An air outlet 360 is provided at the end of the filter box 310 away from the air inlet 311, which is connected to the ventilation chamber 340. A second fan group 350 is provided between the air outlet 360 and the ventilation chamber 340. A disassembly plate 370 is inserted into the bottom of the filter box 310. A sealing strip 371 is provided at the end of the disassembly plate 370 away from the handle. A sealing groove 372 that cooperates with the sealing strip 371 is provided on the inner wall of the filter box 310.

[0036] In this embodiment, the airflow direction within the main air duct 100 is such that it enters the main air duct 100 from its lower end, then passes through the first filter plate 120 and the first fan assembly 110, and exits through the outlet of the main air duct 100. The airflow direction in the secondary air duct 200 is such that a small portion of the airflow entering the main air duct 100 enters the secondary air duct 200 under the action of the baffle 210, flows along the arc shape inside the secondary air duct 200, and exits through the outlet of the secondary air duct 200. The airflow is directed towards the surface of the first filter plate 120; the airflow direction inside the filter box 310 is such that the second fan group 350 creates a negative pressure inside the filter box 310. The airflow in the main air duct 100 near the air inlet 311 of the filter box 310 is drawn into the filter box 310, and then guided into the storage box by the arc-shaped plate set at the air inlet 311. At this time, the air inlet 311 and the ventilation are in a closed state, so the airflow can only enter the storage chamber 320. The airflow inside the filter box will flow upward under the action of the second fan group 350, and form a small vortex under the action of the arc-shaped block set at the bottom corner of the storage box and the second filter plate 330, which will disturb the dust and other debris on the surface of the second filter plate 330 and prevent the second filter plate 330 from being blocked. Most of the airflow will pass through the ventilation chamber 340 and then enter the main air duct 100 again through the air outlet 360 under the action of the second fan group 350. The outlet of the filter box 310 is set on the side of the first fan group 110 away from the first filter plate 120. At this time, the airflow in the filter box 310 and the airflow in the main air duct 100 merge and flow together towards the SF6 detection and collection device. When it is necessary to clean the inside of the filter box 310, simply pull out the disassembly plate 370 by the handle to clean the inside of the filter box 310. After cleaning, reinsert the disassembly plate 370 along the slide groove and insert the sealing strip 371 into the sealing groove 372 to maintain the airtightness of the inside of the filter box 310.

[0037] It should be noted that this device only serves as a passageway, and the filtration mechanism 300 of this device only filters particulate matter in the air-SF6 mixture. By changing the direction of a small portion of the airflow, the dust and other small particulate matter are guided and filtered and collected by the two filter plates. This process does not affect the chemical properties of SF6 that should be present in the environment, and therefore does not affect the monitoring process of SF6 by the monitoring device.

[0038] like Figure 1 , Figure 2 and Figure 3As shown, the first filter plate 120 is obliquely fixed to the inner walls of both sides of the main air duct 100. A secondary air duct 200 is provided on the side of the main air duct 100 away from the filter box 310. The secondary air duct 200 is arc-shaped and both ends are connected to the main air duct 100. A baffle 210 is fixedly connected to the inner wall of the main air duct 100. The baffle 210 is located at the connection between the main air duct 100 and the inlet of the secondary air duct 200. The outlet of the secondary air duct 200 is located at one end of the first filter plate 120, and the inlet of the filter box 310 is located at the other end of the first filter plate 120.

[0039] In this embodiment, since the secondary air duct 200 is arc-shaped and the airflow power mainly comes from the negative pressure environment in the main air duct 100, the airflow generated at the secondary air duct 200 is insufficient to directly push the debris on the surface of the first filter plate 120 into the filter box 310. However, the airflow near the surface of the first filter plate 120 can be disturbed. The disturbed airflow will disturb the debris on the surface of the first filter plate 120, so that the debris does not stick to the surface of the first filter plate 120. With the cooperation of the airflow generated by the filter box 310, the debris on the surface of the first filter plate 120 is slowly pushed into the filter box 310 for collection.

[0040] Working principle: The device is installed near the ground, with the bottom of the main air duct 100 perpendicular to the ground. The outlet of the main air duct 100 is then connected to the SF6 detection and collection device, and the two fan groups are then started.

[0041] The first fan assembly 110 blows air towards the outlet of the main air duct 100, creating a negative pressure inside the main air duct 100. This draws SF6 and dust and other impurities from the environment into the main air duct 100, creating airflow. Most of this airflow passes directly through the main air duct 100 and comes into contact with the first filter plate 120. The first filter plate 120 filters the impurities in the air, causing dust and other impurities to adhere to its surface. SF6 and other gases pass through the first filter plate 120 and then through the main air duct 100. The airflow from the outlet of 0 enters the detection and collection device; while a small portion of the airflow entering the main air duct 100 will enter the secondary air duct 200 under the action of the baffle 210, so that another airflow is formed in the secondary air duct 200. This airflow blows the surface of the first filter plate 120 through the outlet of the secondary air duct 200, blowing the debris on the surface of the first filter plate 120 toward the filter box 310. At this time, the debris filtered by the first filter plate 120 accumulates near the air inlet 311 of the filter box 310 under the action of the two airflows.

[0042] The second fan assembly 350 creates a negative pressure inside the filter box 310, drawing debris near the air inlet 311 into the filter box 310. The debris is then guided to the storage chamber 320 by the arc-shaped plate at the air inlet 311. At this time, dust and other debris are confined to the storage chamber 320 by the second filter plate 330. Meanwhile, SF6 mixed with air passes through the second filter plate 330 and enters the ventilation chamber 340 under the airflow generated by the second fan assembly 350. It then flows back into the outlet of the main air duct 100 through the air outlet 360 of the filter box 310 via the ventilation chamber 340 and the second fan assembly 350, and finally enters the detection and collection device through the main air duct 100, thus completing the ventilation function during environmental monitoring.

[0043] It should be noted that the first fan group 110 and the second fan group 350 mentioned above are all devices with relatively mature existing technology. The specific model can be selected according to actual needs. At the same time, the first fan group 110 and the second fan group 350 can be powered by the built-in power supply or by the mains power. The specific power supply method should be selected according to the situation, which will not be elaborated here.

[0044] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. An environmental monitoring ventilation device for SF6 monitoring, characterized in that, include: The main air duct (100) and the first fan assembly (110) and the first filter plate (120) are fixedly connected to the inner wall of the main air duct (100); The filter mechanism (300) includes a filter box (310) disposed on one side of the main air duct (100). The filter box (310) is provided with a second filter plate (330) inside. The second filter plate (330) divides the interior of the filter box (310) into a storage chamber (320) and a ventilation chamber (340). The storage chamber (320) is disposed below the ventilation chamber (340).

2. The environmental monitoring ventilation device for SF6 monitoring according to claim 1, characterized in that, The filter box (310) has an air inlet (311) on its surface. The air inlet (311) is connected to the interior of the main air duct (100). An arc-shaped plate is provided at the air inlet (311) of the filter box (310).

3. The environmental monitoring ventilation device for SF6 monitoring according to claim 2, characterized in that, The air inlet (311) is connected to the storage compartment (320), and an arc-shaped plate is provided at the bottom corner of the storage compartment (320).

4. The environmental monitoring ventilation device for SF6 monitoring according to claim 2, characterized in that, The filter box (310) has an air outlet (360) at the end away from the air inlet (311). The air outlet (360) is connected to the ventilation chamber (340). A second fan group (350) is provided between the air outlet (360) and the ventilation chamber (340).

5. The environmental monitoring ventilation device for SF6 monitoring according to claim 1, characterized in that, The first filter plate (120) is obliquely fixed to the inner walls of both sides of the main air duct (100). A secondary air duct (200) is provided on the side of the main air duct (100) away from the filter box (310). The secondary air duct (200) is arc-shaped and both ends are connected to the main air duct (100).

6. The environmental monitoring ventilation device for SF6 monitoring according to claim 5, characterized in that, A baffle (210) is fixedly connected to the inner wall of the main air duct (100), and the baffle (210) is located at the connection between the main air duct (100) and the inlet of the secondary air duct (200).

7. The environmental monitoring ventilation device for SF6 monitoring according to claim 5, characterized in that, The outlet of the secondary air duct (200) is located at one end of the first filter plate (120), and the inlet of the filter box (310) is located at the other end of the first filter plate (120).

8. The environmental monitoring ventilation device for SF6 monitoring according to claim 1, characterized in that, A disassembly plate (370) is inserted into the bottom of the filter box (310). A sealing strip (371) is provided at the end of the disassembly plate (370) away from the handle. A sealing groove (372) that cooperates with the sealing strip (371) is provided on the inner wall of the filter box (310).

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