A field collector for SF6 gas monitoring

Abstract

The utility model discloses a kind of SF6 gas monitoring on-site collector, the utility model relates to gas collection technical field.It includes mounting seat, the mounting seat is provided with the installation mechanism for SF gas monitoring on-site collection equipment, installation mechanism includes: filter assembly, including the inside wall of mounting seat is fixed with collector main body, the other sidewall of mounting seat is fixed with air inlet pipe, air inlet pipe is fixed with installation shell inside penetration, SF gas that the utility model in dispersed component can be evenly dispersed into collector main body, on the one hand, avoid the situation that gas is concentrated in certain area and leads to monitoring data inaccuracy, improve the comprehensiveness and accuracy of monitoring result, on the other hand, evenly dispersed gas can more fully contact with sensor and other monitoring components in monitoring area, ensure that sensor can obtain more representative gas parameter, to improve the reliability of entire collector to SF gas monitoring.

Description

Technical Field

[0001] This utility model relates to the field of gas sampling technology, specifically to a field sampler for SF6 gas monitoring. Background Technology

[0002] Sulfur hexafluoride (SF6) gas, with its excellent insulation and arc-quenching properties, has been widely used in the field of electrical equipment, playing a crucial role in devices such as circuit breakers, high-voltage transformers, gas-sealed capacitor banks, high-voltage transmission lines, and instrument transformers. Because the state of SF6 gas has a significant impact on the safe and stable operation of electrical equipment, accurate monitoring of it is an essential step in ensuring the reliable operation of the power system.

[0003] The SF6 gas is in full contact with various sensors arranged inside the main body of the data acquisition unit. These sensors may include gas concentration sensors, temperature sensors, and pressure sensors, which are used to detect parameters such as the concentration, temperature, and pressure of the SF6 gas. The sensors convert the detected gas parameters into electrical signals, which are transmitted to the signal processing module of the data acquisition unit. The signal processing module amplifies, filters, and performs analog-to-digital conversion on the electrical signals, converting them into digital signals for subsequent analysis and storage.

[0004] In existing technologies, SF6 gas monitoring requires introducing the gas into the inside of a collector. However, when SF6 gas is introduced into the collector body, it often concentrates in a specific area and cannot be evenly distributed throughout the monitoring area. This results in sensors and other monitoring components only detecting gas parameters in a localized area, failing to comprehensively and accurately reflect the actual state of the gas within the entire collector body. Furthermore, during SF6 gas collection, impurities such as dust and moisture from the external environment can easily enter the collector body along with the gas. These impurities not only damage precision components such as sensors inside the collector, shortening their lifespan, but also interfere with the accurate detection of gas parameters by the sensors, affecting the reliability of the monitoring data. Therefore, this utility model provides a local collector for SF6 gas monitoring. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a field sampler for SF6 gas monitoring. It solves the problem that existing samplers, when introducing SF6 gas into the main body of the sampler, often concentrate the gas in a specific area, failing to distribute it evenly throughout the entire monitoring area. This results in sensors and other monitoring components only detecting gas parameters in a localized area, rather than comprehensively and accurately reflecting the actual state of the gas within the entire sampler body. Furthermore, during the SF6 gas collection process, impurities such as dust and moisture from the external environment easily enter the sampler body along with the gas. These impurities not only damage precision components such as sensors inside the sampler, shortening their lifespan, but also interfere with the accurate detection of gas parameters by the sensors, affecting the reliability of the monitoring data.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a field sampler for SF gas monitoring, comprising a mounting base, wherein the mounting base is provided with a mounting mechanism for the field sampler of SF gas monitoring, the mounting mechanism comprising:

[0007] The filter assembly includes a collector body fixed to the inner wall of the mounting base, an air inlet pipe fixed to the other side wall of the mounting base, a mounting shell fixed through the interior of the air inlet pipe, a mounting block slidably connected to the interior of the mounting shell, and a filter body fixed inside the mounting block.

[0008] The dispersion component includes a limiting ring fixed inside the main body of the collector, a slip ring rotatably connected inside the limiting ring, an air guide shell fixed inside the slip ring, and air inlets evenly distributed on one side of the air guide shell.

[0009] Preferably, the other end of the air inlet pipe is provided with a flexible hose, and one end of the flexible hose is provided with a mounting flange for connecting to the sampling port of the electrical equipment.

[0010] Preferably, the bottom of the mounting base is fixed with a mounting bracket, the mounting bracket has a mounting hole inside, and the mounting bracket has an L-shaped structure.

[0011] Preferably, the top of the mounting block is fixed with a U-shaped locking bracket, and bolts for connecting to the mounting housing are provided on both sides of the locking bracket.

[0012] Preferably, the mounting base has a cavity groove inside, and a conduit is rotatably connected inside the cavity groove. The outer wall of the conduit is uniformly fixed with toothed blocks, and one end of the conduit is fixedly connected to the air guide shell. The air inlet pipe, the mounting base, and the collector body are in a flow connection.

[0013] Preferably, a drive shaft is rotatably connected through the interior of the cavity groove, and a drive gear is fixed to the outer wall of the drive shaft, the drive gear being meshed with the tooth block.

[0014] Beneficial effects

[0015] This invention provides a field sampler for SF6 gas monitoring. Compared with the prior art, it has the following advantages:

[0016] Firstly, the dispersion component in this invention enables the SF gas entering the main body of the collector to be evenly dispersed. On the one hand, this avoids the situation where the gas is concentrated in a certain area, which would lead to inaccurate monitoring data and improves the comprehensiveness and accuracy of the monitoring results. On the other hand, the evenly dispersed gas can make more full contact with the sensors and other monitoring components in the monitoring area, ensuring that the sensors can obtain more representative gas parameters, thereby improving the reliability of the entire collector in monitoring SF gas.

[0017] Secondly, the filter assembly in this invention greatly improves the purity of the collected gas. By effectively filtering dust, water vapor, and other impurities through the filter body, these impurities can be prevented from entering the inside of the collector body, avoiding damage to internal precision components such as sensors, thereby significantly extending the service life of sensors and other components. Moreover, ensuring the purity of the gas entering the collector body helps improve the accuracy of monitoring data and makes the monitoring results of the collector more reliable. At the same time, the filter body replacement method is cleverly designed. Through the cooperation of the mounting block, locking bracket, and bolts, the filter replacement operation is simple and convenient, reducing maintenance costs and difficulties. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the mounting shell structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the cavity groove of this utility model;

[0021] Figure 4 This is a schematic diagram of the air inlet structure of this utility model.

[0022] In the diagram: 1. Mounting base; 2. Mounting bracket; 3. Collector body; 4. Air inlet pipe; 401. Hose; 402. Mounting flange; 5. Mounting housing; 501. Mounting block; 502. Filter body; 503. Locking bracket; 504. Bolt; 6. Limiting ring; 601. Slip ring; 602. Air guide housing; 603. Air inlet nozzle; 7. Duct; 701. Tooth block; 702. Cavity groove; 703. Drive shaft; 704. Drive gear. Detailed Implementation

[0023] 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 protection scope of the present utility model.

[0024] Please see Figure 1-4 This utility model provides a technical solution: a field sampler for SF6 gas monitoring, including a mounting base 1, on which a mounting mechanism for the SF6 gas monitoring field sampler is provided, the mounting mechanism including:

[0025] The filter assembly includes a collector body 3 fixed to the inner wall of the mounting base 1, an air inlet pipe 4 fixed to the other side wall of the mounting base 1, a mounting shell 5 fixed through the inside of the air inlet pipe 4, a mounting block 501 slidably connected inside the mounting shell 5, and a filter body 502 fixed inside the mounting block 501.

[0026] The dispersion component includes a limiting ring 6 fixed inside the collector body 3, a slip ring 601 rotatably connected inside the limiting ring 6, an air guide shell 602 fixed inside the slip ring 601, and air inlets 603 evenly distributed on one side of the air guide shell 602.

[0027] In a preferred embodiment, the other end of the air inlet pipe 4 is provided with a flexible hose 401, one end of which is provided with a mounting flange 402 for connecting to the sampling port of the electrical equipment. The bottom of the mounting base 1 is fixed with a mounting bracket 2, which has an internal mounting hole and is L-shaped. The bottom of the mounting bracket 2 is fixed to the bottom of the mounting base 1, and the mounting bracket 2 has an internal mounting hole. The entire collector can be fixed in the required position, including the wall or other supporting structure near the electrical equipment, by means of screws or other connecting parts, providing a stable mounting foundation for the collector.

[0028] The flexible hose 401 at the other end of the air inlet pipe 4 has a certain degree of flexibility, which makes it easy to bend and adjust its position in different installation environments to adapt to the connection with the sampling port of the electrical equipment. The mounting flange 402 at one end of the hose 401 can be tightly connected to the corresponding flange of the sampling port of the electrical equipment through bolts, etc., to realize a stable and sealed gas passage connection between the collector and the electrical equipment, ensuring that SF6 gas can flow smoothly into the collector from the sampling port of the electrical equipment.

[0029] In a preferred embodiment, a U-shaped locking bracket 503 is fixed to the top of the mounting block 501. Bolts 504, connecting to the mounting housing 5, are provided on both sides of the locking bracket 503. During SF6 gas sampling, SF6 gas originates from the sampling port of the electrical equipment, enters the inlet pipe 4 via the hose 401, and then flows into the mounting housing 5 fixed inside the inlet pipe 4. Since the mounting block 501 is slidably connected inside the mounting housing 5, and the filter body 502 is fixed inside the mounting block 501, the gas passes through the mounting... When the gas passes through the housing 5, it will be filtered by the filter body 502. During this process, impurities such as dust and water vapor in the gas are intercepted by the filter body 502, while the filtered pure SF6 gas continues to flow along the intake pipe 4 towards the collector body 3. When the filter body 502 needs to be replaced, it can be easily replaced by loosening the bolts 504 connected to the housing 5 and using the U-shaped locking bracket 503 fixed at the top of the mounting block 501 to slide the mounting block 501 along with the filter body 502 out of the housing 5.

[0030] In a preferred embodiment, the mounting base 1 has a cavity groove 702 inside, and a conduit 7 is rotatably connected inside the cavity groove 702. Tooth blocks 701 are evenly fixed to the outer wall of the conduit 7, and one end of the conduit 7 is fixedly connected to the air guide shell 602. The air inlet pipe 4, the mounting base 1, and the collector body 3 are in a flow connection. A drive shaft 703 is rotatably connected through the cavity groove 702, and a drive gear 704 is fixed to the outer wall of the drive shaft 703. The drive gear 704 meshes with the tooth blocks 701. The rotation of the air guide shell 602 causes the air inlet nozzle 603 to evenly distribute and enter the interior of the collector body 3. After being filtered by the filter assembly, the S... When F6 gas enters the main body 3 of the collector, a slip ring 601 is rotatably connected inside the limiting ring 6, and a guide shell 602 is fixed inside the slip ring 601. When the drive shaft 703 rotates in the cavity groove 702, the drive gear 704 fixed on the outer wall of the drive shaft 703 will mesh with the tooth block 701, thereby driving the duct 7 to rotate, and finally causing the guide shell 602 to rotate. During the rotation of the guide shell 602, the position of the air inlet 603 changes continuously, and the gas entering the main body 3 can be evenly introduced into the interior of the guide shell 602 through the air inlet 603, and then dispersed to the monitoring area inside the main body 3 through the guide shell 602.

[0031] The drive shaft 703 is driven by a motor on the outside of the mounting base 1, which is a servo motor with model number EDSMT-2T110-020A.

[0032] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0033] When using this SF6 gas monitoring field sampler, first fix the entire sampler with the mounting bracket 2. The mounting bracket 2 is L-shaped and has mounting holes inside. It can be fixed to the wall or other supporting structure near the electrical equipment using screws or other connectors to provide a stable foundation for the sampler. Next, connect the sampler to the sampling port of the electrical equipment with the hose 401 at the other end of the inlet pipe 4 and the mounting flange 402 at its end. The flexibility of the hose 401 makes it easy to adjust the position, and the mounting flange 402 is tightly connected to the corresponding flange with bolts to ensure a stable and sealed gas passage.

[0034] Subsequently, SF6 gas enters the inlet pipe 4 through the sampling port of the electrical equipment via the hose 401, and flows into the mounting housing 5 inside the inlet pipe 4. Since a filter body 502 is fixed in the slidingly connected mounting block 501 inside the mounting housing 5, the gas is filtered by the filter body 502 as it passes through, intercepting impurities such as dust and water vapor. The pure gas continues to flow along the inlet pipe 4 towards the collector body 3. When it is necessary to replace the filter body 502, loosen the bolts 504 connecting the locking bracket 503 to the mounting housing 5 on both sides. The mounting block 501, along with the filter body 502, can then be slid out of the mounting housing 5 for replacement using the U-shaped locking bracket 503. Gas enters the main body 3 of the collector. At this time, the drive shaft 703 in the cavity groove 702 inside the mounting base 1 rotates, driving the drive gear 704 on its outer wall to rotate. The drive gear 704 meshes with the tooth block 701 on the outer wall of the duct 7, thereby driving the duct 7 to rotate. One end of the duct 7 is fixedly connected to the air guide shell 602, so that the air guide shell 602 rotates with the duct 7 on the slip ring 601 in the limiting ring 6. The position of the air inlet 603 evenly distributed on one side of the air guide shell 602 changes continuously, so that the gas is evenly introduced into the interior of the air guide shell 602 and then dispersed to the monitoring area inside the main body 3 of the collector, completing the collection and transportation process of SF6 gas.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A field sampler for SF6 gas monitoring, comprising a mounting base (1), characterized in that: The mounting base (1) is provided with a mounting mechanism for the on-site collection equipment for SF6 gas monitoring. The mounting mechanism includes: The filter assembly includes a collector body (3) fixed to the inner wall of the mounting base (1), an air inlet pipe (4) fixed to the other side wall of the mounting base (1), an installation shell (5) fixed through the interior of the air inlet pipe (4), an installation block (501) slidably connected to the interior of the installation shell (5), and a filter body (502) fixed inside the installation block (501). The dispersion component includes a limiting ring (6) fixed inside the collector body (3), a slip ring (601) rotatably connected inside the limiting ring (6), an air guide shell (602) fixed inside the slip ring (601), and air inlets (603) evenly distributed on one side of the air guide shell (602).

2. The on-site data collector for SF6 gas monitoring according to claim 1, characterized in that: The other end of the air inlet pipe (4) is provided with a flexible hose (401), and one end of the flexible hose (401) is provided with a mounting flange (402) for connecting to the sampling port of the electrical equipment.

3. The on-site data collector for SF6 gas monitoring according to claim 1, characterized in that: The bottom of the mounting base (1) is fixed with a mounting bracket (2), the mounting bracket (2) has an installation hole inside, and the mounting bracket (2) has an L-shaped structure.

4. The on-site data collector for SF6 gas monitoring according to claim 1, characterized in that: The top of the mounting block (501) is fixed with a U-shaped locking bracket (503), and bolts (504) for connecting to the mounting housing (5) are provided on both sides of the locking bracket (503).

5. The on-site data collector for SF6 gas monitoring according to claim 1, characterized in that: The mounting base (1) has a cavity groove (702) inside, and a conduit (7) is rotatably connected inside the cavity groove (702). Tooth blocks (701) are evenly fixed on the outer wall of the conduit (7), and one end of the conduit (7) is fixedly connected to the air guide shell (602). The air inlet pipe (4), the mounting base (1) and the collector body (3) are in a flow connection.

6. The on-site data collector for SF6 gas monitoring according to claim 5, characterized in that: A drive shaft (703) is rotatably connected through the cavity groove (702). A drive gear (704) is fixed on the outer wall of the drive shaft (703). The drive gear (704) is meshed with the tooth block (701).

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