SF6 gas quantitative analyzer

Abstract

The utility model relates to a kind of SF6 gas quantitative analyzers, belong to electric power equipment technical field.The SF6 gas quantitative analyzers, including: main casing, the surface of the main casing is fixedly connected with filter tube, the end of the filter tube extends to the inside of main casing;Air inlet mechanism, the air inlet mechanism is set to the inside of main casing, the upper end of the air inlet mechanism extends to the above of main casing;Wherein, the air inlet mechanism includes fixedly connected with the airtight cylinder of main casing inner bottom wall;Under the action of air inlet mechanism, by fixed frame cooperation guide rod keep plugging plug to form the plugging effect that air inlet of inner cylinder is adhered, so that gas is exported to the below of airtight cylinder by piston gel resistance, by the resistance of spring piece in snap hook, so that snap hook is connected in the outside of reference scale, control the area that circular tube moves longitudinally, reach the effect that control air intake, control the capacity of gas recovery, guarantee the accuracy of recovery gas.

Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, and in particular to an SF6 gas quantitative analyzer. Background Technology

[0002] SF6 gas itself is a gas with excellent insulating properties and excellent arc extinguishing properties. Therefore, SF6 gas is widely used for insulation in GIS equipment. However, leakage of SF6 in GIS will greatly reduce the insulation performance of GIS and endanger the reliability of the equipment. In addition, SF6 gas will decompose under the action of high voltage arc, producing toxic gas. When SF6 gas comes into contact with water, it will also produce toxic substances, which will endanger the health of operation and maintenance personnel.

[0003] A search of existing Chinese patents reveals an "SF6 gas quantitative analyzer" with publication number "CN209342686U". This device only allows SF6 gas to pass through, reducing impurities in the recovered gas, improving the purity and recovery index of SF6 gas, improving the accuracy of volume determination, and ensuring detection precision. However, because it is difficult to control the specific amount of gas recovered after the gas enters, the recovery amount may not be accurate enough, affecting the accuracy of the recovery. Utility Model Content

[0004] Based on this, it is necessary to address the problem that the difficulty in controlling the specific recovery capacity of the gas may lead to inaccurate recovery volume and affect the accuracy of recovery. The present invention provides an SF6 gas quantitative analyzer, comprising: a main housing, on which a filter tube is fixedly connected to the surface, the end of which extends into the interior of the main housing; and an air intake mechanism disposed inside the main housing, the upper end of which extends above the main housing; wherein the air intake mechanism includes a sealed cylinder fixedly connected to the bottom wall of the main housing, an air guiding component disposed inside the sealed cylinder, the upper end of which extends through to the top of the sealed cylinder, and a control component connected to the upper end of the air guiding component.

[0005] In one embodiment, the air guiding assembly includes a piston colloid slidably connected to the inner wall of a sealed cylinder. A movable rod is fixedly connected to the inner wall of the piston colloid, and the upper end of the movable rod extends to the upper end of the sealed cylinder. A plurality of inner cylinders are opened at the upper end of the piston colloid, and the plurality of inner cylinders are evenly distributed in a ring along the inner wall of the sealed cylinder. A sealing plug is slidably connected to the inner wall of the inner cylinder.

[0006] In one embodiment, the control component includes a circular tube fixedly connected to the upper end of a movable rod. A rotating rod is rotatably connected to the inner wall of the circular tube. An inner groove is formed on the surface of the rotating rod. A reference scale is embedded in the surface of the circular tube. A toothed groove is formed on one side of the reference scale. A hook is hinged to the inner wall of the inner groove. The end of the hook passes through the adjacent toothed groove.

[0007] In one embodiment, a fixing bracket is fixedly connected to the inner wall of the inner cylinder away from the control component. Multiple recesses are formed inside the piston colloid, and these recesses communicate with the interior of adjacent inner cylinders. When the sealing plug below the inner cylinder moves down towards the fixing bracket, gas passes through the inner cylinder, and the recesses facilitate the gas flow, allowing it to enter below the piston colloid.

[0008] In one embodiment, the sealing plug is located above the adjacent fixing bracket, and a guide rod is fixedly connected to the lower end of the sealing plug. The lower end of the guide rod passes through the adjacent fixing bracket and extends to the lower end of the piston colloid. The fixing bracket, in conjunction with the guide rod, keeps the sealing plug in contact with the air inlet of the inner cylinder to achieve a sealing effect.

[0009] In one embodiment, a spring is sleeved on the outside of the guide rod, and the upper end of the spring is fixedly connected to the lower end of the adjacent sealing plug.

[0010] In one embodiment, a spring piece is fixedly connected to the surface of the hook, and the other end of the spring piece is fixedly connected to the inner wall of the inner groove. Rotating the rotating rod causes the hook to rotate synchronously, wherein the hook passes through the toothed groove under the abutment of the spring piece. At this time, the hook engages with the outside of the reference scale, controlling the area of ​​longitudinal movement of the circular tube, thereby controlling the air intake volume. Beneficial Effects

[0011] The aforementioned SF6 gas quantitative analyzer, by setting up an air intake mechanism, under the action of the air intake mechanism, through the fixed frame and guide rod, keeps the sealing plug close to the air intake port of the inner cylinder to form a sealing effect, so that the gas is discharged downwards from the sealed cylinder by the piston colloid. Through the contact of the hook with the spring plate, the hook is engaged with the outside of the reference scale, controlling the area of ​​longitudinal movement of the circular tube, thereby controlling the air intake volume, controlling the gas recovery capacity, and ensuring the accuracy of the recovered gas.

[0012] By setting the inner cylinder to enter below the piston colloid, when the moving rod moves down, it drives the piston colloid to slide synchronously on the inner wall of the sealed cylinder. At this time, under the action of the spring, it moves upward against the sealing plug, and the fixing bracket and guide rod keep the sealing plug in contact with the air inlet of the inner cylinder to form a sealing effect. Attached Figure Description

[0013] 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.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the main shell of this utility model;

[0016] Figure 3 This is an exploded cross-sectional view of the gas guiding assembly of this utility model;

[0017] Figure 4 This is an exploded cross-sectional view of the control component of this utility model.

[0018] Figure label:

[0019] 1. Main housing; 2. Filter tube; 3. Air intake mechanism; 31. Air guide assembly; 311. Moving rod; 312. Piston colloid; 313. Inner cylinder; 314. Fixing bracket; 315. Sealing plug; 316. Guide rod; 317. Spring; 32. Adjustment assembly; 321. Circular tube; 322. Rotating rod; 323. Inner groove; 324. Reference scale; 325. Gear; 326. Hook; 327. Spring; 33. Sealed cylinder. Detailed Implementation

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] The following is combined with Figures 1-4 This invention describes an SF6 gas quantitative analyzer.

[0026] In one embodiment, an SF6 gas quantitative analyzer includes: a main housing 1, a filter tube 2 fixedly connected to the surface of the main housing 1, the end of the filter tube 2 extending into the interior of the main housing 1; and an air intake mechanism 3 disposed inside the main housing 1, the upper end of the air intake mechanism 3 extending above the main housing 1.

[0027] The air intake mechanism 3 includes a sealed cylinder 33 fixedly connected to the bottom wall of the main housing 1. An air guide component 31 is provided inside the sealed cylinder 33. The upper end of the air guide component 31 extends through to the top of the sealed cylinder 33. An adjustment component 32 is connected to the upper end of the air guide component 31.

[0028] like Figure 1-3As shown, the air guiding assembly 31 includes a piston colloid 312 slidably connected to the inner wall of the sealed cylinder 33. A moving rod 311 is fixedly connected to the inner wall of the piston colloid 312. The upper end of the moving rod 311 extends to the upper end of the sealed cylinder 33. Multiple inner cylinders 313 are opened at the upper end of the piston colloid 312. The multiple inner cylinders 313 are evenly distributed in a ring along the inner wall of the sealed cylinder 33. A sealing plug 315 is slidably connected to the inner wall of the inner cylinder 313. A fixing frame 314 is fixedly connected to the inner wall of the inner cylinder 313 away from the regulating assembly 32. Multiple recesses are opened inside the piston colloid 312. The recesses communicate with the interior of the adjacent inner cylinder 313.

[0029] The sealing plug 315 is located above the adjacent fixing frame 314. The lower end of the sealing plug 315 is fixedly connected to the guide rod 316. The lower end of the guide rod 316 passes through the adjacent fixing frame 314 and extends to the lower end of the piston colloid 312. A spring 317 is sleeved on the outside of the guide rod 316. The upper end of the spring 317 is fixedly connected to the lower end of the adjacent sealing plug 315.

[0030] In this embodiment, when the moving rod 311 moves longitudinally, the gas can be guided through the filter tube 2 to the sealed cylinder 33 above the piston colloid 312. When the moving rod 311 moves the piston colloid 312 upward, the sealing plug 315 below the inner cylinder 313 moves downward and approaches the fixing frame 314. At this time, the gas passes through the inner cylinder 313 and enters below the piston colloid 312 through the action of the notch. When the moving rod 311 moves downward, it drives the piston colloid 312 to slide synchronously on the inner wall of the sealed cylinder 33. At this time, under the action of the spring 317, it abuts against the sealing plug 315 and moves upward. The fixing frame 314 and the guide rod 316 keep the sealing plug 315 in contact with the air inlet of the inner cylinder 313 to form a sealing effect, so that the gas is discharged downward through the piston colloid 312.

[0031] like Figure 1 , Figure 2 and Figure 4 As shown, the control component 32 includes a circular tube 321 fixedly connected to the upper end of the moving rod 311. A rotating rod 322 is rotatably connected to the inner wall of the circular tube 321. An inner groove 323 is formed on the surface of the rotating rod 322. A reference scale 324 is embedded in the surface of the circular tube 321. A toothed groove 325 is formed on one side of the reference scale 324. A hook 326 is hinged to the inner wall of the inner groove 323. The end of the hook 326 passes through the adjacent toothed groove 325. A spring piece 327 is fixedly connected to the surface of the hook 326. The other end of the spring piece 327 is fixedly connected to the inner wall of the inner groove 323.

[0032] In this embodiment, rotating the rotating rod 322 causes the hook 326 to rotate synchronously. The hook 326 passes through the toothed groove 325 under the action of the spring piece 327. At this time, the hook 326 is engaged with the outside of the reference scale 324, controlling the area of ​​longitudinal movement of the circular tube 321, thereby controlling the air intake. In use, the specific movement range can be viewed through the reference scale 324.

[0033] Working principle: When the moving rod 311 moves longitudinally, the filter tube 2 guides the gas to the sealed cylinder 33, which is located above the piston colloid 312. When the moving rod 311 moves the piston colloid 312 upward, the sealing plug 315 below the inner cylinder 313 moves downward and approaches the fixed frame 314. The gas enters the inner cylinder 313, passes through the notch, and enters below the piston colloid 312. When the moving rod 311 moves downward, it drives the piston colloid 312 to slide synchronously on the inner wall of the sealed cylinder 33. The spring 317 abuts against the sealing plug 315, and the fixed frame 314 is equipped with... The guide rod 316 keeps the sealing plug 315 in contact with the inner cylinder 313 to block the air inlet. The gas is pushed downwards into the sealed cylinder 33 by the piston colloid 312. Rotating the rotating rod 322 causes the hook 326 to rotate synchronously. The hook 326 passes through the toothed groove 325 under the action of the spring piece 327. The hook 326 is engaged with the outside of the reference scale 324, controlling the longitudinal movement area of ​​the circular tube 321 to achieve the effect of controlling the air intake. When in use, refer to the scale 324 to check the specific movement range.

[0034] 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.

[0035] 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. A SF6 gas quantitative analyzer characterized by comprising: include: A main housing (1) is provided, and a filter tube (2) is fixedly connected to the surface of the main housing (1), with the end of the filter tube (2) extending into the interior of the main housing (1). An air intake mechanism (3) is disposed inside the main housing (1), and the upper end of the air intake mechanism (3) extends to the top of the main housing (1); The air intake mechanism (3) includes a sealed cylinder (33) fixedly connected to the bottom wall of the main housing (1). An air guide assembly (31) is provided inside the sealed cylinder (33). The upper end of the air guide assembly (31) extends through to the top of the sealed cylinder (33). An adjustment assembly (32) is connected to the upper end of the air guide assembly (31).

2. The SF6 gas quantitative analyzer according to claim 1, characterized in that, The air guiding assembly (31) includes a piston colloid (312) slidably connected to the inner wall of the sealed cylinder (33). A moving rod (311) is fixedly connected to the inner wall of the piston colloid (312). The upper end of the moving rod (311) extends to the upper end of the sealed cylinder (33). A plurality of inner cylinders (313) are opened at the upper end of the piston colloid (312). The plurality of inner cylinders (313) are evenly distributed in a ring along the inner wall of the sealed cylinder (33). A sealing plug (315) is slidably connected to the inner wall of the inner cylinder (313).

3. The SF6 gas quantitative analyzer according to claim 1, characterized in that, The control component (32) includes a circular tube (321) fixedly connected to the upper end of the moving rod (311). A rotating rod (322) is rotatably connected to the inner wall of the circular tube (321). An inner groove (323) is formed on the surface of the rotating rod (322). A reference scale (324) is embedded in the surface of the circular tube (321). A toothed groove (325) is formed on one side of the reference scale (324). A hook (326) is hinged to the inner wall of the inner groove (323). The end of the hook (326) passes through the adjacent toothed groove (325).

4. The SF6 gas quantitative analyzer according to claim 2, characterized in that, The inner cylinder (313) is fixedly connected to the inner wall away from the control component (32) by a fixing bracket (314). The piston colloid (312) has multiple recesses inside, and the recesses are connected to the interior of the adjacent inner cylinder (313).

5. The SF6 gas quantitative analyzer according to claim 4, characterized in that, The sealing plug (315) is located above the adjacent fixing frame (314), and the lower end of the sealing plug (315) is fixedly connected to a guide rod (316). The lower end of the guide rod (316) passes through the adjacent fixing frame (314) and extends to the lower end of the piston colloid (312).

6. The SF6 gas quantitative analyzer according to claim 5, characterized in that, A spring (317) is sleeved on the outside of the guide rod (316), and the upper end of the spring (317) is fixedly connected to the lower end of the adjacent sealing plug (315).

7. The SF6 gas quantitative analyzer according to claim 3, characterized in that, The surface of the hook (326) is fixedly connected to a spring piece (327), and the other end of the spring piece (327) is fixedly connected to the inner wall of the inner groove (323).

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