Portable transformer moisture absorber function detection device

Abstract

The utility model discloses a portable transformer moisture absorber function detection device which comprises a detection box, a covering box is hinged to one side of the top of the detection box, containing grooves are formed in the detection box and the covering box, and through grooves are formed in the positions, located on one sides of the containing grooves, in the detection box and the covering box. A pressure sensor is arranged at the bottom end of the interior of the detection box, an air pump is fixedly installed below the front face of the detection box, an air outlet pipe of the air pump is connected with the detection box in a penetrating mode, a fixing assembly is arranged in a lower through groove, and a supporting assembly is arranged on one side of a lower containing groove; the fixing assembly comprises a fixing ring fixedly installed in the lower through groove, and a sealing gasket is fixedly installed at the top of the fixing ring. According to the transformer moisture absorber connecting part sealing detection device, when the sealing performance of the transformer moisture absorber connecting part is detected, moisture absorbers of different sizes can be fixed, the sealing performance can be ensured in the detection process, and the application range is widened.

Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, specifically a portable transformer dehumidifier function testing device. Background Technology

[0002] The function of a transformer dehumidifier is to absorb moisture from the air that enters the oil conservator bag and diaphragm, and to remove and dry impurities and moisture from the air that enter the transformer (or instrument transformer) oil tank due to changes in transformer oil temperature, so as to prevent the transformer from getting damp and to ensure the insulation strength of the transformer oil.

[0003] Publication No. CN115127752A discloses a portable auxiliary testing device for power transformer breathers. This patent comprises a base box, a cover box, an inner box, the transformer breather body, and testing components. The device uses the base box and cover box to form a sealed enclosure for sealing testing of the transformer breather body to be installed. It changes the internal air pressure by inflating the breather, and then uses a pressure sensor to detect whether any pressure change occurs during the testing process. This achieves the effect of detecting the sealing performance of the transformer breather body's connections, preventing circuit alarms caused by poor sealing of the transformer breather body. However, this patent still has the following problems in practical use:

[0004] The internal air pressure of the transformer breather is changed by inflating it, and then a pressure sensor is used to detect whether there is a change in air pressure during the testing process. This achieves the effect of testing the sealing of the connection of the transformer breather. However, in actual use, when testing the sealing of the transformer breather, it can only be tested on transformer breathers of a fixed size. If the size of the transformer breather changes, the sealing cannot be guaranteed during the testing process, thus limiting its application range.

[0005] A portable transformer dehumidifier function testing device is proposed to address the problems mentioned above. Utility Model Content

[0006] The purpose of this invention is to provide a portable transformer desiccant function testing device to solve the problem mentioned in the background art. Currently, the device changes the internal air pressure by inflating the transformer desiccant and then uses a pressure sensor to detect whether the air pressure changes during the testing process, thereby achieving the effect of testing the sealing of the transformer desiccant connection. However, in actual use, when testing the sealing of the transformer desiccant, it can only test transformer desiccants of a fixed size. If the size of the transformer desiccant changes, the sealing cannot be guaranteed during the testing process, thus limiting its application range.

[0007] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a portable transformer moisture absorber function detection device, including detection case,

[0008] The top side of the detection case is hinged with a cover box, and the inside of the detection case and the cover box is provided with a containing groove;

[0009] Further comprising:

[0010] The inside of the detection case and the cover box at one side of the containing groove is provided with a through groove, the inside bottom of the detection case is provided with a pressure sensor, the front of the detection case is fixedly installed with an air pump, the air outlet pipe of the air pump is connected with the detection case, the inside of the lower through groove is provided with a fixing assembly, and the side of the lower containing groove is provided with a supporting assembly;

[0011] The fixing assembly comprises a fixing ring fixedly installed in the lower through groove, the top of the fixing ring is fixedly installed with a sealing pad, and the inside of the fixing ring is fixedly installed with an annular air bag;

[0012] The side of the detection case outside the fixing ring is fixedly installed with a cylinder, the inside of the cylinder is connected with a connecting pipe, and the end of the connecting pipe away from the cylinder is connected with the annular air bag.

[0013] Preferably, the inside of the cylinder is slidably connected with a piston, the side of the cylinder away from the connecting pipe is provided with a through hole, and the side of the piston is rotatably connected with a screw rod.

[0014] Preferably, the screw rod is threadedly connected with the cylinder, the side of the screw rod outside the cylinder is threadedly connected with a threaded block, the threaded block is fixedly connected with the cylinder, and the end of the screw rod away from the piston is fixedly installed with a worm wheel.

[0015] Preferably, the side of the cylinder outside the worm wheel is symmetrically installed with a fixing block, the worm is rotatably connected between the two fixing blocks, the worm is meshingly connected with the worm wheel, and the end of the worm passes through the fixing block on one side and is fixedly installed with a handle.

[0016] Preferably, the supporting assembly comprises a supporting plate arranged in the lower containing groove, the side of the supporting plate is fixedly installed with a sealing plate, the inside of the supporting plate is slidably connected with two supporting frames, the side of the supporting frame is fixedly connected with the lower containing groove, the other end of the supporting frame is fixedly installed with a fixing plate, and the bottom of the fixing plate is fixedly connected with the lower containing groove.

[0017] Preferably, the other side of the supporting plate is symmetrically installed with a movable rod, the movable rod is slidably connected with the detection case, the connection between the movable rod and the detection case is sealed, and the outside of the two movable rods is slidably connected with a movable frame.

[0018] Preferably, the two movable rods are sleeved with telescopic springs on the side of the movable frame, the two ends of the telescopic springs are fixedly connected with the movable rods and the movable frame respectively, a threaded rod is threadedly connected with the movable frame inside the two movable rods, and one end of the threaded rod is rotationally connected with the detection box.

[0019] Compared with the prior art, the portable transformer moisture absorber function detection device can fix different sizes of moisture absorbers when detecting the sealing performance of the transformer moisture absorber connection, and the sealing performance can be ensured during detection, and the use range is improved.

[0020] 1. When detecting the sealing performance of the transformer moisture absorber, the cover box is opened, the moisture absorber is put into the detection box through the fixing ring, then the cover box is closed, the cover box and the detection box are locked, a sealing ring is arranged between the cover box and the detection box to seal, and the cover box is further sealed by the sealing pad after being closed, then the handle is rotated to drive the worm to rotate, the worm is engaged with the worm gear to drive the worm gear to rotate, the screw rod is driven to rotate, the piston is driven to move in the cylinder, the air in the cylinder enters the annular air bag through the connecting pipe, the annular air bag is inflated and expanded, the annular air bag can be fully filled between the inside of the fixing ring and the moisture absorber, the fixing ring can be sealed, different inflation amounts can be selected according to the size of the moisture absorber, the expansion volume of the annular air bag can be changed, then the detection box is inflated by the air pump, the pressure in the detection box is obtained by the pressure sensor on the detection box, if the moisture absorber leaks or the sealing is not tight, the value of the pressure sensor changes, the moisture absorber can be detected, and when not in use, the cover box and the detection box are closed, so that the device is convenient to carry, the moisture absorber of different sizes can be fixed when detecting the sealing performance of the transformer moisture absorber connection, the sealing performance can be ensured during detection, and the use range is improved.

[0021] 2. When detecting the moisture absorber, the flange at one end of the moisture absorber is attached to the sealing plate after the moisture absorber is put into the detection box, the threaded rod is rotated to drive the movable frame to move, the movable frame slides on the movable rod to stretch the telescopic spring, the telescopic spring has a reaction force to apply a pushing force to the movable rod, and then a pushing force is applied to the supporting plate, so that the sealing plate is tightly attached to the flange at one end of the moisture absorber, the joint of the moisture absorber is prevented from being not tightly sealed, and the detection accuracy is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a whole structure schematic view of the utility model;

[0023] Figure 2A fixed assembly structure schematic view of the utility model is shown in the figure.

[0024] Figure 3 A cylinder section structure schematic view of the utility model is shown in the figure.

[0025] Figure 4 A support assembly structure schematic view of the utility model is shown in the figure.

[0026] In the figure: 1, detection box; 101, cover box; 102, containing groove; 103, through groove; 104, air pump; 2, fixed assembly; 201, fixed ring; 202, sealing gasket; 203, annular air bag; 204, cylinder; 205, connecting pipe; 206, piston; 207, screw rod; 208, threaded block; 209, worm wheel; 210, fixed block; 211, worm; 212, handle; 3, support assembly; 301, support plate; 302, sealing plate; 303, support frame; 304, fixed plate; 305, movable rod; 306, movable frame; 307, extension spring; 308, threaded rod. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the utility model.

[0028] Please refer to Figures 1-4The utility model provides technical scheme: a portable transformer moisture trap function detection device, including detection box 1, the top side of detection box 1 is hinged with cover box 101, and the inside of detection box 1 and cover box 101 is all seted up with containing groove 102, still include: the inside of detection box 1 and cover box 101 is located containing groove 102's one side all sets up with through slot 103, and the inside bottom of detection box 1 is provided with pressure sensor, and the front of detection box 1 below is fixedly installed with air pump 104, moreover, the air outlet pipe of air pump 104 is connected with detection box 1 and is penetrated, and the inside of lower through slot 103 is provided with fixed assembly 2, and the one side of lower containing groove 102 is provided with support assembly 3, wherein, fixed assembly 2 includes the fixed ring 201 of fixed installation in lower through slot 103 inside, and the top of fixed ring 201 is fixedly installed with sealing washer 202, and the inside of fixed ring 201 is fixedly installed with annular air bag 203, wherein, the one side of detection box 1 outside is located fixed ring 201 and is fixedly installed with cylinder 204, and the inside one side of cylinder 204 is penetrated and is connected with connecting pipe 205, and the one end of connecting pipe 205 away from cylinder 204 is penetrated and is connected with annular air bag 203, so that when the sealing property of transformer moisture trap connecting place is detected, the moisture trap of different size can be fixed, and the sealing property can be guaranteed during the detection process, and the use range is improved.

[0029] The inside of the barrel 204 is slidably connected with a piston 206, and a through hole is formed in the side of the barrel 204 away from the connecting pipe 205, and the piston 206 is rotatably connected with a screw rod 207 on one side, so that the rotation of the screw rod 207 can drive the piston 206 to move, the screw rod 207 is threadedly connected with the barrel 204, and a threaded block 208 is threadedly connected with the outside of the barrel 204 on one side of the screw rod 207, and the threaded block 208 is fixedly connected with the barrel 204, and the screw rod 207 is fixedly installed with a worm gear 209 at the end away from the piston 206, so as to facilitate the inflation of the annular air bag 203, and the outside of the barrel 204 on one side of the worm gear 209 is symmetrically installed with a fixed block 210, and the two fixed blocks 210 are rotatably connected with a worm 211, and the worm 211 is meshedly connected with the worm gear 209, and the handle 212 is fixedly installed at one end of the worm 211 through the fixed block 210 on one side, so as to facilitate the rotation of the screw rod 207, the supporting assembly 3 comprises a supporting plate 301 arranged inside the lower accommodating groove 102, a sealing plate 302 is fixedly installed on the upper side of one side of the supporting plate 301, and two supporting frames 303 are slidably connected inside the supporting plate 301, and the supporting frame 303 is fixedly connected with the lower accommodating groove 102 on one side, and the other end of the supporting frame 303 is fixedly installed with a fixed plate 304, and the bottom of the fixed plate 304 is fixedly connected with the lower accommodating groove 102, so as to facilitate the sealing of the flange at one end of the moisture absorber, and the other side of the supporting plate 301 is symmetrically installed with a movable rod 305, and the movable rod 305 is slidably connected with the detection box 1, and the connection between the movable rod 305 and the detection box 1 is sealed, and the outside of one side of the two movable rods 305 is slidably connected with a movable frame 306, so that the movement of the movable rod 305 can drive the supporting plate 301 to move, the outside of one side of the two movable rods 305 is sleeved with an expansion spring 307, and the two ends of the expansion spring 307 are fixedly connected with the movable rod 305 and the movable frame 306 respectively, and the inside of the movable frame 306 between the two movable rods 305 is threadedly connected with a threaded rod 308, and one end of the threaded rod 308 is rotatably connected with the detection box 1, so as to facilitate the control of the movement of the movable frame 306.

[0030] Working principle: before using the portable transformer moisture absorber function detection device, the overall situation of the device needs to be checked to determine whether it can work normally, according to Figures 1-4As shown, when the sealing performance of the transformer moisture absorber is detected, the cover box 101 is opened, the moisture absorber is put into the detection box 1 through the fixed ring 201, then the cover box 101 is closed, so that the cover box 101 is locked with the detection box 1, the sealing ring between the cover box 101 and the detection box 1 can be sealed, and the cover box 101 is further sealed through the sealing pad 202 after being closed, then the handle 212 is rotated to drive the worm 211 to rotate, the worm 211 can drive the worm wheel 209 to rotate through meshing with the worm wheel 209, so that the screw rod 207 can be driven to rotate, the piston 206 can be moved in the cylinder body 204 after the screw rod 207 rotates, so that the air in the cylinder body 204 enters the inside of the annular air bag 203 through the connecting pipe 205, the annular air bag 203 is inflated and expanded, so that the annular air bag 203 can be fully filled between the inside of the fixed ring 201 and the moisture absorber, the fixed ring 201 can be sealed, different inflation amounts can be selected according to the size of the moisture absorber, the expansion volume of the annular air bag 203 can be changed, then the inside of the detection box 1 is inflated through the air pump 104, the pressure inside the detection box 1 is obtained through the pressure sensor on the detection box 1, if the moisture absorber leaks or the sealing is not tight, the value of the pressure sensor changes, the moisture absorber can be detected, and when not in use, the cover box 101 and the detection box 1 are closed, which is convenient for carrying, so that when the sealing performance of the transformer moisture absorber connection is detected, moisture absorbers of different sizes can be fixed, and the sealing performance can be guaranteed during detection, and the use range is improved.

[0031] When the moisture absorber is detected, the flange at one end of the moisture absorber is attached to the sealing plate 302 after the moisture absorber is put into the detection box 1, the threaded rod 308 can be rotated to drive the movable frame 306 to move after the moisture absorber is fixed, so that the movable frame 306 slides on the movable rod 305 to stretch the extension spring 307, the extension spring 307 has a reaction force after being stretched, which can exert a pushing force on the movable rod 305, and then a pushing force can be exerted on the supporting plate 301, so that the sealing plate 302 can be tightly attached to the flange at one end of the moisture absorber, so that the joint of the moisture absorber is not tightly sealed, and the detection accuracy is improved.

[0032] 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 recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A portable transformer dehumidifier function testing device, comprising a testing box (1); The top side of the test box (1) is hinged to a cover box (101), and both the test box (1) and the cover box (101) have a receiving slot (102) inside. Its features are, Also includes: Both the detection box (1) and the cover box (101) have through slots (103) on one side of the receiving groove (102). A pressure sensor is installed at the bottom of the inside of the detection box (1). An air pump (104) is fixedly installed on the lower front of the detection box (1). The air outlet pipe of the air pump (104) is connected to the detection box (1). A fixing component (2) is installed inside the lower through slot (103). A support component (3) is installed on one side of the lower receiving groove (102). The fixing component (2) includes a fixing ring (201) fixedly installed inside the lower through groove (103), and a sealing gasket (202) is fixedly installed on the top of the fixing ring (201), and an annular airbag (203) is fixedly installed inside the fixing ring (201). The detection box (1) has a cylinder (204) fixedly installed on one side of the fixing ring (201) outside, and a connecting pipe (205) is connected through the inside of the cylinder (204), and the end of the connecting pipe (205) away from the cylinder (204) is connected through the annular airbag (203).

2. The portable transformer dehumidifier function testing device according to claim 1, characterized in that: A piston (206) is slidably connected inside the cylinder (204), and a through hole is opened on the side of the cylinder (204) away from the connecting pipe (205), and a screw (207) is rotatably connected to one side of the piston (206).

3. The portable transformer dehumidifier function testing device according to claim 2, characterized in that: The screw (207) is threadedly connected to the cylinder (204), and a threaded block (208) is threadedly connected to the outside of the screw (207) on one side of the cylinder (204), and the threaded block (208) is fixedly connected to the cylinder (204), and a worm gear (209) is fixedly installed at the end of the screw (207) away from the piston (206).

4. The portable transformer dehumidifier function testing device according to claim 3, characterized in that: The cylinder (204) is symmetrically equipped with fixing blocks (210) on one side of the worm wheel (209) on the outside. A worm (211) is rotatably connected between the two fixing blocks (210). The worm (211) is meshed with the worm wheel (209). One end of the worm (211) passes through the fixing block (210) on one side and is fixedly equipped with a handle (212).

5. The portable transformer dehumidifier function testing device according to claim 1, characterized in that: The support assembly (3) includes a support plate (301) disposed inside the lower receiving groove (102), and a sealing plate (302) is fixedly installed on one side of the support plate (301). Two support frames (303) are slidably connected to the lower interior of the support plate (301). One side of the support frame (303) is fixedly connected to the lower receiving groove (102), and a fixing plate (304) is fixedly installed at the other end of the support frame (303). The bottom of the fixing plate (304) is fixedly connected to the lower receiving groove (102).

6. The portable transformer dehumidifier function testing device according to claim 5, characterized in that: On the other side of the support plate (301), movable rods (305) are symmetrically installed, and the movable rods (305) are slidably connected to the detection box (1). The connection between the movable rods (305) and the detection box (1) is sealed. Furthermore, movable frames (306) are slidably connected to the outer side of the two movable rods (305).

7. The portable transformer dehumidifier function testing device according to claim 6, characterized in that: Both of the two movable rods (305) are fitted with telescopic springs (307) on one side of the movable frame (306), and the two ends of the telescopic springs (307) are fixedly connected to the movable rods (305) and the movable frame (306) respectively. A threaded rod (308) is threadedly connected between the two movable rods (305) inside the movable frame (306), and one end of the threaded rod (308) is rotatably connected to the detection box (1).

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