Oil taking and filling equipment for transformer oil chromatography detection

Abstract

The utility model relates to the technical field of transformer oil sampling equipment, and discloses oil taking and filling equipment for transformer oil chromatography detection, which comprises a sampling barrel, four rectangular cavities are arranged on the outer surface of a fixing frame, filter screens are mounted in the four rectangular cavities, a push rod is movably inserted into the outer surface of the sampling barrel, and a push rod is arranged on the outer surface of the sampling barrel. A baffle is fixedly connected to the outer surface of the push rod, a telescopic rod is fixedly connected to the outer surface of the bottom of the baffle, a rotating rod rotationally penetrates through the outer surface of the fixing frame, an inserting block is fixedly connected to the outer surface of the rotating rod, and a cleaning brush is fixedly connected to the outer surface, away from the inserting block, of the rotating rod. According to the oil taking and injecting equipment for transformer oil chromatography detection, a pull plate is rotated, the pull plate drives a push rod to rotate, a baffle drives a telescopic rod to rotate, then a rotating rod rotates, the surface of a filter screen is cleaned through rotation of a cleaning brush, and therefore the filter screen does not need to be frequently disassembled to be cleaned or replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer oil sampling equipment, in particular to an oil sampling and injection equipment for transformer oil chromatographic detection. Background Art

[0002] Transformer oil chromatography detection and analysis is currently the main means of monitoring the dissolved gas content in transformer oil. The detection method can be carried out by using a dedicated online transformer oil chromatography analyzer for real-time monitoring, or professionals can take samples from the transformer oil intake port and send them to the laboratory for testing. Regardless of the detection method, a sampling process is required, so a sampling device is required.

[0003] In order to prevent particulate impurities from being mixed in the oil, the existing transformer oil sampling device usually sets a filter in the sampling device to filter the oil. However, most sampling devices do not have a mechanism for cleaning the filter. Therefore, after long-term use, the filtering effect of the filter will be low, and the filter needs to be frequently disassembled, cleaned or replaced. The steps are cumbersome, time-consuming and labor-intensive. Therefore, an oil filling device for transformer oil chromatographic detection is proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an oil filling and dispensing device for transformer oil chromatography detection to solve the problems mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an oil sampling and injection equipment for transformer oil chromatographic detection, comprising a sampling cylinder, the outer surface of the sampling cylinder is connected to a filter box through a connecting flange, the outer surface of the filter box away from the sampling cylinder is connected to a sampling nozzle through a connecting flange, the interior of the filter box is fixedly connected to a fixing frame, the outer surface of the fixing frame is provided with four rectangular cavities, and the interiors of the four rectangular cavities are all equipped with filter screens, the outer surface of the sampling cylinder is movably inserted with a push rod, the outer surface of the push rod is fixedly connected with a baffle, the baffle is movably connected to the interior of the sampling cylinder, the bottom outer surface of the baffle is fixedly connected with a telescopic rod, the outer surface of the telescopic rod is fixedly connected with a mounting block, the outer surface of the fixed frame is rotatably penetrated by a rotating rod, the outer surface of the rotating rod is fixedly connected with an insert block, the insert block is movably inserted on the outer surface of the mounting block, and the outer surface of the rotating rod away from the insert block is fixedly connected with a cleaning brush.

[0006] Furthermore, the outer surface of the sampling cylinder is fixedly connected to two horizontal tubes, the outer surfaces of the two horizontal tubes are fixedly connected to a vertical tube, the bottom outer surfaces of the vertical tubes are threadedly connected to a sampling bottle, the inner surfaces of the horizontal tubes are fixedly connected to a cross, the outer surface of the cross is movably penetrated by a movable rod, the outer surface of the movable rod is fixedly connected to an extrusion block, the outer surface of the movable rod away from the extrusion block is fixedly connected to a blocking block, the outer surface of the blocking block is fixedly connected to a spring, the other end of the spring is fixedly connected to the cross, and the spring is sleeved on the outer surface of the movable rod.

[0007] Furthermore, a magnet is fixedly connected to the inner surface of the mounting block, and an iron block is fixedly connected to the outer surface of the inserting block.

[0008] Furthermore, a through hole is provided on the outer surface of the baffle, and a negative pressure tube is fixedly connected to the top outer surface of the sampling tube.

[0009] Furthermore, the upper and lower outer surfaces of the extrusion block are both inclined and smooth outer surfaces.

[0010] Furthermore, the diameter of the block facing the vertical pipe is greater than the diameter of the block facing away from the vertical pipe.

[0011] Furthermore, the cleaning brush is a nylon brush.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The oil filling equipment for transformer oil chromatography detection is connected to the negative pressure pipe through an external negative pressure device, and samples are taken through a sampling nozzle. When the oil enters the filter box, it is filtered through a filter screen, and the filter screen filters the particulate impurities in the oil. After filtering, the oil enters the sampling tube. After sampling, when the filter screen needs to be cleaned, the pull plate is rotated, and the pull plate drives the push rod to rotate, so that the push rod drives the rotating rod to rotate the cleaning brush. The rotation of the cleaning brush cleans the surface of the filter screen, so there is no need to frequently disassemble the filter screen to clean or replace it.

[0014] 2. The oil filling and extraction equipment for transformer oil chromatography detection, before sampling, pull the pull plate, the pull plate drives the push rod to move, so that the baffle moves, and the telescopic rod is extended and retracted, and the baffle is moved to a position abutting against the extrusion block. When the baffle squeezes the extrusion block, the movable rod drives the blocking block to move into the vertical tube, so that a gap appears between the horizontal tube and the blocking block, so that the oil enters the vertical tube from the horizontal tube and finally enters the sampling bottle. After the sampling is completed, continue to pull the pull plate to separate the baffle from the surface of the extrusion block, and the spring reset drives the blocking block to block the horizontal tube, so that the oil is stored in the sampling bottle, thereby completing the sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1This is a schematic diagram of the front view structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the filter box of the utility model when viewed from above;

[0018] Figure 4 This is a schematic diagram of the exploded structure of the installation block and its related structures of the utility model;

[0019] Figure 5 It is a schematic cross-sectional view of the vertical pipe and related structures of the utility model.

[0020] In the figure: 1. sampling cylinder; 2. filter box; 3. fixing frame; 4. filter screen; 5. rotating rod; 6. push rod; 7. mounting block; 8. magnet; 9. plug block; 10. iron block; 11. cleaning brush; 12. baffle; 13. horizontal pipe; 14. vertical pipe; 15. cross; 16. movable rod; 17. squeezing block; 18. blocking block; 19. spring; 20. sampling bottle; 21. sampling nozzle; 22. pull plate; 23. telescopic rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Please refer to Figure 1-Figure 5The utility model provides a technical solution: an oil filling device for transformer oil chromatography detection, comprising a sampling barrel 1, the outer surface of the sampling barrel 1 is connected to a filter box 2 through a connecting flange, the outer surface of the filter box 2 away from the sampling barrel 1 is connected to a sampling nozzle 21 through a connecting flange, the interior of the filter box 2 is fixedly connected to a fixing frame 3, the outer surface of the fixing frame 3 is provided with four rectangular cavities, the interiors of the four rectangular cavities are all equipped with filter screens 4, the outer surface of the sampling barrel 1 is movably inserted with a push rod 6, the outer surface of the push rod 6 is fixedly connected to a baffle 12, the baffle 12 is movably connected to the interior of the sampling barrel 1, the bottom outer surface of the baffle 12 is fixedly connected to a telescopic rod 23, the outer surface of the telescopic rod 23 is fixedly connected to a mounting block 7, the outer surface of the fixing frame 3 is rotatably penetrated by a rotating rod 5, the rotating rod 5 The outer surface of the plug block 9 is fixedly connected to the plug block 9, and the plug block 9 is movably inserted in the outer surface of the mounting block 7. The outer surface of the rotating rod 5 away from the plug block 9 is fixedly connected to the cleaning brush 11. In this embodiment, when the oil enters the filter box 2, the oil is filtered through the filter screen 4, and the filter screen 4 filters the particulate impurities in the oil. After filtering, the oil enters the sampling tube 1. After the sampling is completed, when the filter screen 4 needs to be cleaned, the pull plate 22 is rotated, and the pull plate 22 drives the push rod 6 to rotate, so that the push rod 6 drives the rotating rod 5 to rotate the cleaning brush 11. The rotation of the cleaning brush 11 cleans the surface of the filter screen 4, so there is no need to frequently disassemble the filter screen 4 for cleaning or replacement. When the filter screen 4 has been used for a long time, the connecting flange is removed and the filter box 2 is disassembled.

[0023] The outer surface of the sampling tube 1 is fixedly connected with two horizontal tubes 13, and the outer surfaces of the two horizontal tubes 13 are fixedly connected with vertical tubes 14. The outer surface of the bottom of the vertical tube 14 is threadedly connected with a sampling bottle 20. The inner surface of the horizontal tube 13 is fixedly connected with a cross 15. The outer surface of the cross 15 is movably penetrated by a movable rod 16. The outer surface of the movable rod 16 is fixedly connected with an extrusion block 17. The outer surface of the movable rod 16 away from the extrusion block 17 is fixedly connected with a blocking block 18. The outer surface of the blocking block 18 is fixedly connected with a spring 19. The other end of the spring 19 is fixedly connected to the cross 15. The spring 19 is sleeved on the outer surface of the movable rod 16. In this embodiment, before sampling, pull Pull the plate 22, the pull plate 22 drives the push rod 6 to move, so that the baffle 12 moves, and the telescopic rod 23 is extended and retracted, and the baffle 12 is moved to a position abutting against the extrusion block 17. When the baffle 12 squeezes the extrusion block 17, the movable rod 16 drives the blocking block 18 to move into the vertical tube 14, so that a gap appears between the cross tube 13 and the blocking block 18, so that the oil enters the vertical tube 14 from the cross tube 13 and finally enters the sampling bottle 20. After the sampling is completed, continue to pull the pull plate 22 to make the baffle 12 detach from the surface of the extrusion block 17, and the spring 19 resets to drive the blocking block 18 to block the cross tube 13, so that the oil is stored in the sampling bottle 20, thereby completing the sampling.

[0024] A magnet 8 is fixedly connected to the inner surface of the mounting block 7 , and an iron block 10 is fixedly connected to the outer surface of the insert block 9 . In this embodiment, the insert block 9 is fixed in the mounting block 7 by the adsorption of the magnet 8 and the iron block 10 .

[0025] A through hole is formed on the outer surface of the baffle 12, and a negative pressure tube is fixedly connected to the top outer surface of the sampling tube 1. In this embodiment, the negative pressure tube is connected to an external negative pressure device and negative pressure is generated inside the sampling tube 1 through the through hole for sampling.

[0026] The upper and lower outer surfaces of the extrusion block 17 are both inclined and smooth outer surfaces. In this embodiment, the inclined and smooth outer surfaces are provided to facilitate the baffle 12 to extrude the extrusion block 17 .

[0027] The diameter of the blocking block 18 facing the vertical pipe 14 is greater than the diameter of the side away from the vertical pipe 14 . In this embodiment, the blocking block 18 can better block the horizontal pipe 13 .

[0028] The cleaning brush 11 is a nylon brush. In this embodiment, the nylon brush has better elastic recovery force and a long service life.

[0029] Working principle: When the utility model is in use, it is connected to the negative pressure pipe through the external negative pressure device, and sampling is performed through the sampling nozzle 21. When the oil enters the filter box 2, the oil is filtered through the filter screen 4, and the filter screen 4 filters the particulate impurities in the oil. After filtering, the oil enters the sampling tube 1. After sampling, when the filter screen 4 needs to be cleaned, the pull plate 22 is rotated, and the pull plate 22 drives the push rod 6 to rotate, so that the push rod 6 drives the rotating rod 5 to rotate the cleaning brush 11, and the rotation of the cleaning brush 11 cleans the surface of the filter screen 4, so there is no need to frequently disassemble the filter screen 4 for cleaning or replacement. After the filter screen 4 has been used for a long time, the connecting flange is disassembled, the filter box 2 is disassembled, and the iron block 10 is detached from the outer surface of the magnet 8, the plug block 9 is taken out from the mounting block 7, and the filter screen 4 is replaced.

[0030] Before sampling, the pull plate 22 is pulled, and the pull plate 22 drives the push rod 6 to move, so that the baffle 12 moves, and the telescopic rod 23 is extended and retracted, and the baffle 12 is moved to a position abutting against the extrusion block 17. When the baffle 12 squeezes the extrusion block 17, the movable rod 16 drives the blocking block 18 to move into the vertical tube 14, so that a gap appears between the cross tube 13 and the blocking block 18, so that the oil enters the vertical tube 14 from the cross tube 13 and finally enters the sampling bottle 20. After the sampling is completed, the pull plate 22 is continued to be pulled to make the baffle 12 detach from the surface of the extrusion block 17, and the spring 19 is reset to drive the blocking block 18 to block the cross tube 13, so that the oil is stored in the sampling bottle 20, thereby completing the sampling.

[0031] The above-mentioned equipment is used in different ways for each device. It is selected and used according to actual conditions, and various parameters are referred to, in accordance with the functions of the equipment used and the effects achieved.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oil sampling and injection device for transformer oil chromatographic detection, comprising a sampling cylinder (1), characterized in that: The outer surface of the sampling cylinder (1) is connected to a filter box (2) via a connecting flange, the outer surface of the filter box (2) away from the sampling cylinder (1) is connected to a sampling nozzle (21) via a connecting flange, the interior of the filter box (2) is fixedly connected to a fixing frame (3), the outer surface of the fixing frame (3) is provided with four rectangular cavities, and the interiors of the four rectangular cavities are each provided with a filter screen (4), the outer surface of the sampling cylinder (1) is movably provided with a push rod (6), and the outer surface of the push rod (6) is fixedly connected to a baffle (12) The baffle (12) is movably connected to the interior of the sampling tube (1); a telescopic rod (23) is fixedly connected to the outer surface of the bottom of the baffle (12); a mounting block (7) is fixedly connected to the outer surface of the telescopic rod (23); a rotating rod (5) is rotatably penetrated through the outer surface of the fixed frame (3); an insert block (9) is fixedly connected to the outer surface of the rotating rod (5); the insert block (9) is movably inserted into the outer surface of the mounting block (7); a cleaning brush (11) is fixedly connected to the outer surface of the rotating rod (5) away from the insert block (9).

2. The oil filling and dispensing equipment for transformer oil chromatography detection according to claim 1 is characterized in that: The outer surface of the sampling tube (1) is fixedly connected to two transverse tubes (13), the outer surfaces of the two transverse tubes (13) are fixedly connected to a vertical tube (14), the outer surface of the bottom of the vertical tube (14) is threadedly connected to a sampling bottle (20), the inner surface of the transverse tube (13) is fixedly connected to a cross (15), the outer surface of the cross (15) is movably penetrated by a movable rod (16), the outer surface of the movable rod (16) is fixedly connected to an extrusion block (17), the outer surface of the movable rod (16) away from the extrusion block (17) is fixedly connected to a blocking block (18), the outer surface of the blocking block (18) is fixedly connected to a spring (19), the other end of the spring (19) is fixedly connected to the cross (15), and the spring (19) is sleeved on the outer surface of the movable rod (16).

3. The oil filling and dispensing equipment for transformer oil chromatography detection according to claim 1 is characterized in that: The inner surface of the mounting block (7) is fixedly connected to a magnet (8), and the outer surface of the insert block (9) is fixedly connected to an iron block (10).

4. The oil filling and dispensing equipment for transformer oil chromatography detection according to claim 1 is characterized in that: A through hole is provided on the outer surface of the baffle (12), and a negative pressure tube is fixedly connected to the top outer surface of the sampling tube (1).

5. The oil filling and dispensing equipment for transformer oil chromatography detection according to claim 2 is characterized in that: The upper and lower outer surfaces of the extrusion block (17) are both inclined and smooth outer surfaces.

6. The oil filling and dispensing equipment for transformer oil chromatography detection according to claim 2, characterized in that: The diameter of the blocking block (18) facing the vertical pipe (14) is larger than the diameter of the side facing away from the vertical pipe (14).

7. The oil filling and dispensing equipment for transformer oil chromatography detection according to claim 1, characterized in that: The cleaning brush (11) is a nylon brush.

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