Monitoring device for detecting ethane gas in transformer oil

Abstract

The utility model discloses a monitoring device for detecting ethane gas in transformer oil, which comprises a handheld gas chromatograph, a protection mechanism and a mounting bracket, the protection mechanism is arranged at the upper end of the handheld gas chromatograph, the protection mechanism comprises a mounting rod, a baffle plate and a rotating rod, the mounting bracket is arranged on the rear side of the handheld gas chromatograph, and the baffle plate is arranged on the mounting bracket. The mounting support comprises a connecting plate, a joining plate and a back plate, the connecting plate is arranged on the inner side of the joining plate, and the joining plate is arranged on the front side of the back plate. According to the utility model, the protection mechanism is additionally arranged on the existing handheld gas chromatograph, the mounting position of the baffle plate is adjusted as required, and the shielding area is adjusted by utilizing the rotating rod, so that the handheld gas chromatograph is shielded and protected when being used at a fixed position; the handheld gas chromatograph is mounted in an area close to the transformer by using the mounting bracket, so that the ethane gas in the transformer can be conveniently monitored.

Description

Technical Field

[0001] This utility model relates to, but is not limited to, the field of power equipment monitoring technology. Specifically, it relates to a monitoring device for detecting ethane gas in transformer oil. Background Technology

[0002] Transformers are critical equipment in power systems, and their normal operation is essential for the safety of the power system. Dissolved gas analysis (DGA) in transformer oil is an effective means of diagnosing internal faults in transformers. Ethane gas, as one of the characteristic gases of internal transformer faults, can reflect latent faults within the transformer through changes in its content.

[0003] Currently, commercially available devices for detecting ethane gas in transformer oil lack protective structures, making them susceptible to damage from external environmental corrosion. Therefore, this paper proposes a monitoring device for detecting ethane gas in transformer oil with a protective structure. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a monitoring device for detecting ethane gas in transformer oil.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model discloses a monitoring device for detecting ethane gas in transformer oil, comprising a handheld gas chromatograph, a protection mechanism, and a mounting bracket. The protection mechanism is disposed at the upper end of the handheld gas chromatograph and includes a mounting rod, a baffle plate, and a rotating rod. The mounting rod is disposed on both sides of the handheld gas chromatograph, and the rotating rod is disposed between the baffle plate and the mounting rod.

[0007] The mounting bracket is located on the rear side of the handheld gas chromatograph. The mounting bracket includes a connecting plate, a connecting plate, and a back plate. The connecting plate is located inside the connecting plate, and the connecting plate is located on the front side of the back plate.

[0008] As a preferred embodiment of this utility model, the handheld gas chromatograph is provided with a sampling tube interface and a data interface at its upper end, and a display is provided on the front side of the handheld gas chromatograph.

[0009] 3. The monitoring device for detecting ethane gas in transformer oil as described above, characterized in that the bottom of the mounting rod is screwed to the handheld gas chromatograph, one end of the rotating rod is threaded to the shielding plate, and the other end of the rotating rod is rotatably connected to the mounting rod.

[0010] 4. The monitoring device for detecting ethane gas in transformer oil as described above, characterized in that a transparent plate is embedded in the inner side of the shielding plate, and at least three mounting holes adapted to the rotating rod are provided on both sides of the shielding plate.

[0011] 5. A monitoring device for detecting ethane gas in transformer oil as described above, characterized in that the connecting plate is screwed to the handheld gas chromatograph, both the connecting plate and the connecting plate have a U-shaped design on their top surfaces, the connecting plate is located inside the connecting plate, and a connecting bolt is provided between the connecting plate and the connecting plate.

[0012] 6. The monitoring device for detecting ethane gas in transformer oil as described above is characterized in that, both the upper and lower ends of the connecting plate are provided with buckle plates, the buckle plates are snapped into the back plate, and the four corners of the back plate are provided with mounting holes.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] (1) This utility model adds a protective mechanism to the existing handheld gas chromatograph, adjusts the installation position of the shielding plate according to the needs, and uses the rotating rod to adjust the shielding area, so as to shield and protect the handheld gas chromatograph when it is used in a fixed position, avoid rainwater erosion and sun exposure, solve the problem of lack of structure to protect the monitoring device, which makes the monitoring device easy to be eroded and damaged by the external environment.

[0015] (2) This utility model provides a detachable mounting bracket on the rear side of the handheld gas chromatograph, and uses the mounting bracket to install the handheld gas chromatograph in an area close to the transformer, which facilitates the monitoring of ethane gas in the transformer.

[0016] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a disassembly diagram of the present invention;

[0021] In the diagram: 100, handheld gas chromatograph; 101, sampling tube interface; 102, data interface; 103, display; 200, protection mechanism; 201, mounting rod; 202, shielding plate; 203, rotating rod; 204, transparent plate; 205, connecting hole; 300, mounting bracket; 301, connecting plate; 302, connecting plate; 303, mounting plate; 304, snap plate; 305, connecting bolt; 306, mounting hole. Detailed Implementation

[0022] like Figure 1-2 As shown, this utility model provides a monitoring device for detecting ethane gas in transformer oil, including a handheld gas chromatograph 100, a protection mechanism 200, and a mounting bracket 300. The protection mechanism 200 is disposed at the upper end of the handheld gas chromatograph 100. The protection mechanism 200 includes a mounting rod 201, a baffle plate 202, and a rotating rod 203. The mounting rod 201 is disposed on both sides of the handheld gas chromatograph 100, and the rotating rod 203 is disposed between the baffle plate 202 and the mounting rod 201.

[0023] The mounting bracket 300 is located on the rear side of the handheld gas chromatograph 100. The mounting bracket 300 includes a connecting plate 301, a connecting plate 302, and a back plate. The connecting plate 301 is located inside the connecting plate 302, and the connecting plate 302 is located on the front side of the back plate.

[0024] Furthermore, in this embodiment, the upper end of the handheld gas chromatograph 100 is provided with a sampling tube interface 101 and a data interface 102, and the front side of the handheld gas chromatograph 100 is provided with a display 103. The handheld gas chromatograph 100 connects to the sampling tube through the sampling tube interface 101 to sample the transformer oil. The monitoring data of the handheld gas chromatograph 100 can be exported through the data interface 102, and the detection data of the handheld gas chromatograph 100 can be displayed on the display 103.

[0025] In this embodiment, the bottom of the mounting rod 201 is screwed to the handheld gas chromatograph 100, one end of the rotating rod 203 is threaded to the baffle plate 202, and the other end of the rotating rod 203 is rotatably connected to the mounting rod 201. The baffle plate 202 rotates inside the two mounting rods 201 through the rotating rods 203 installed on both sides, thereby adjusting the use angle of the baffle plate 202, and fixing the angle with screws to prevent the baffle plate 202 from shaking.

[0026] In this embodiment, a transparent plate 204 is embedded in the inner side of the shielding plate 202. At least three mounting holes 306 adapted to the rotating rod 203 are opened on both sides of the shielding plate 202. The design of the transparent plate 204 avoids the shielding plate 202 from blocking the upper area of ​​the handheld gas chromatograph 100 and affecting the operation. Through the design of multiple mounting holes 306, the installation position of the shielding plate 202 can be adjusted according to the usage requirements, thereby adjusting the shielding range of the shielding plate 202 and realizing personalized settings.

[0027] In this embodiment, the connecting plate 301 is screwed to the handheld gas chromatograph 100. The top surfaces of both the connecting plate 301 and the connecting plate 302 are U-shaped. The connecting plate 301 is located inside the connecting plate 302, and a connecting bolt 305 is provided between the connecting plate 301 and the connecting plate 302. The handheld gas chromatograph 100 and the mounting bracket 300 are connected through the connecting plate 301, and the connecting plate 301 and the connecting plate 302 are connected by the connecting bolt 305.

[0028] In this embodiment, the upper and lower ends of the connecting plate 302 are provided with buckle plates 304, which are snapped together with the back plate. The four corners of the back plate are provided with mounting holes 306. The connecting plate 302 is snapped onto the back plate by the buckle plates 304 at the upper and lower ends, and is installed in position by the mounting holes 306 on the back plate.

[0029] Specifically, when monitoring ethane gas in transformer oil, a handheld gas chromatograph is chosen for convenience, making it easy to view the test data. When fixed in place, the handheld gas chromatograph 100 is connected to the mounting bracket 300 via the connecting plate 301, and the connecting plate 301 and the connecting plate 302 are connected by the connecting bolts 305. The connecting plate 302 is snapped into the back plate, making it easy to disassemble when handheld.

[0030] Considering that the handheld gas chromatograph 100 is exposed to the outside when in fixed use and is easily corroded by rain or exposed to the sun, a protective mechanism 200 is set at the upper end of the handheld gas chromatograph 100. The shielding plate 202 is installed on both sides of the handheld gas chromatograph 100 using the mounting rod 201. The installation position of the rotating rod 203 on the shielding plate 202 can be adjusted as needed, such as near the front, middle, or rear end. The shielding range can be adjusted as needed, and the use angle of the shielding plate 202 can be manually adjusted. The rotating rod 203 rotates within the mounting plate 303 and is then fixed with screws, so that the shielding plate 202 can better shield and protect the handheld gas chromatograph 100.

[0031] The operating steps of the handheld gas chromatograph 100 are as follows: First, a certain amount of oil sample is extracted from the transformer to release the gas in the oil sample. Usually, heating and vacuuming are used to inject the extracted gas into the gas chromatograph through the injector. The gas is separated in the chromatographic column. Different gases move at different speeds in the chromatographic column due to differences in polarity, molecular size, etc., thus achieving separation. The separated gases pass through detectors in sequence. The detector can be a device that converts gas into electrical signals, such as a flame ionization detector (FID) or a thermal conductivity detector (TCD). The signal generated by the detector is recorded by the data acquisition system and converted into gas concentration information by the data processing module.

[0032] The handheld gas chromatograph 100, sampling tube interface 101, data interface 102, display 103, mounting rod 201, shielding plate 202, rotating rod 203, transparent plate 204, mounting bracket 300, connecting plate 301, connecting plate 302, mounting plate 303, buckle plate 304, connecting bolts 305 and other components of this utility model are all general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0033] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A monitoring device for detecting ethane gas in transformer oil, characterized in that, The device includes a handheld gas chromatograph (100), a protection mechanism (200), and a mounting bracket (300). The protection mechanism (200) is located at the upper end of the handheld gas chromatograph (100). The protection mechanism (200) includes a mounting rod (201), a baffle plate (202), and a rotating rod (203). The mounting rod (201) is located on both sides of the handheld gas chromatograph (100), and the rotating rod (203) is located between the baffle plate (202) and the mounting rod (201). The mounting bracket (300) is disposed on the rear side of the handheld gas chromatograph (100). The mounting bracket (300) includes a connecting plate (301), a connecting plate (302), and a back plate. The connecting plate (301) is disposed on the inner side of the connecting plate (302), and the connecting plate (302) is disposed on the front side of the back plate.

2. The monitoring device for detecting ethane gas in transformer oil according to claim 1, characterized in that, The handheld gas chromatograph (100) is provided with a sampling tube interface (101) and a data interface (102) at its upper end, and a display (103) is provided on the front side of the handheld gas chromatograph (100).

3. The monitoring device for detecting ethane gas in transformer oil according to claim 2, characterized in that, The bottom of the mounting rod (201) is screwed to the handheld gas chromatograph (100), one end of the rotating rod (203) is threaded to the shield (202), and the other end of the rotating rod (203) is rotatably connected to the mounting rod (201).

4. The monitoring device for detecting ethane gas in transformer oil according to claim 3, characterized in that, The inner side of the shielding plate (202) is fitted with a transparent plate (204), and at least three mounting holes (306) adapted to the rotating rod (203) are opened on both sides of the shielding plate (202).

5. A monitoring device for detecting ethane gas in transformer oil according to claim 4, characterized in that, The connecting plate (301) is screwed to the handheld gas chromatograph (100). The top surfaces of the connecting plate (301) and the connecting plate (302) are both U-shaped. The connecting plate (301) is located inside the connecting plate (302), and a connecting bolt (305) is provided between the connecting plate (301) and the connecting plate (302).

6. A monitoring device for detecting ethane gas in transformer oil according to claim 5, characterized in that, The connecting plate (302) is provided with buckle plates (304) at both the upper and lower ends. The buckle plates (304) are snapped into the back plate. The back plate is provided with mounting holes (306) at all four corners.

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