Connecting device convenient for quickly disassembling and assembling silica gel respirator of main transformer

Abstract

A connecting device facilitating quick disassembly and assembly of a main transformer silica gel respirator comprises a first air suction pipe, a first flange plate is fixedly connected to the lower end of the first air suction pipe, an external thread screw sleeve is fixedly connected to the lower portion of the first flange plate, the external thread screw sleeve is connected with an internal thread screw sleeve in a matched mode, and the lower end of the internal thread screw sleeve is fixedly connected with a second flange plate. A second air suction pipe is fixedly connected below the second flange plate, and the lower end of the second air suction pipe is connected with the upper end of the silica gel respirator in a matched mode. Rapid butt joint of the first air suction pipe and the second air suction pipe can be achieved through the external thread screw sleeve and the internal thread screw sleeve, that is, rapid replacement of the silica gel respirator connected with the second air suction pipe can be achieved, the replacement speed of the silica gel respirator is greatly increased, the hot-line work time is shortened, and the replacement efficiency of the silica gel respirator is improved. And the safety of operators is improved.

Description

Technical Field

[0001] The invention relates to the technical field of transformer silicone breather replacement, in particular to a connecting device that is convenient for quick disassembly and assembly of a main transformer silicone breather. Background Art

[0002] As a key equipment in the power system, the transformer is of vital importance for its operation safety. As an important part of the transformer, the respirator is responsible for adjusting the pressure balance inside and outside the transformer tank and filtering impurities and moisture in the air entering the tank. As the operation time increases, the silica gel in the respirator will gradually become saturated and lose its moisture absorption capacity, causing moisture and impurities in the air to enter the transformer tank, damaging the transformer insulation and even causing failures; on the other hand, due to poor installation and sealing of the respirator, it is easy to cause the respirator silica gel to change color, which will cause it to lose its function over time, bringing hidden dangers to the safe operation of the transformer. Therefore, regular replacement of the respirator is one of the important measures to ensure the safety of transformer operation; to replace the existing silicone respirator, it is necessary to first exit the transformer gas protection, and then remove the four screws on the two flanges on the suction pipe one by one, remove the silicone respirator that is about to fail, and then fix the new silicone respirator with the flange and screws to complete the replacement work. However, since the screws are prone to rust in the outdoor environment for a long time, it is time-consuming and laborious to disassemble, which increases the time of live operation and further reduces the safety of the operators. Summary of the invention

[0003] The object of the present invention is to provide a connection device for facilitating quick disassembly and assembly of a main transformer silicone breather, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a connection device for facilitating quick disassembly and assembly of a main transformer silicone breather, comprising a first air intake pipe (1), the lower end of the first air intake pipe (1) being fixedly connected to a first flange (2), the lower end of the first flange (2) being fixedly connected to an external threaded sleeve (3), the external threaded sleeve (3) being cooperatively connected to an internal threaded sleeve (4), the lower end of the internal threaded sleeve (4) being fixedly connected to a second flange (5), the lower end of the second flange (5) being fixedly connected to a second air intake pipe (6), the lower end of the second air intake pipe (6) being cooperatively connected to the upper end of a silicone breather (7).

[0005] Furthermore, a sealing ring (41) is provided at the bottom of the internally threaded sleeve (4).

[0006] Furthermore, the sealing cover (8) is cylindrical with one end blocked, and its inner wall is provided with threads, which can be matched and connected with the external threaded sleeve (3).

[0007] Furthermore, a sealing gasket (81) is provided at the bottom of the inner cylinder of the sealing cover (8).

[0008] Compared with the prior art, the present invention has the following beneficial effects: The present invention can realize the rapid docking of the first suction pipe and the second suction pipe through the external threaded thread sleeve and the internal threaded thread sleeve, that is, it can realize the rapid replacement of the silicone respirator connected to the second suction pipe, and the function of the cover is to screw the cover into the end of the external threaded thread sleeve for sealing when removing the old silicone respirator, and after the preparation of the new silicone respirator is completed, the cover is removed and replaced with the new silicone respirator; the use of the present invention greatly speeds up the replacement speed of the silicone respirator, shortens the time of live working, and improves the safety of the operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a three-dimensional schematic diagram of the present invention; Figure 2 It is a front view of the present invention; Figure 3 It is a schematic diagram of the connection between the external thread sleeve and the sealing cover of the present invention.

[0010] In the figure: 1. first air intake pipe; 2. first flange; 3. external threaded sleeve; 4. internal threaded sleeve, 41. sealing ring; 5. second flange; 6. second air intake pipe; 7. silicone respirator; 8. sealing cover, 81. sealing gasket. DETAILED DESCRIPTION

[0011] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0012] See also Figures 1 to 3 The present invention provides a technical solution: a connection device for quickly disassembling and assembling a main transformer silicone respirator, comprising a first intake pipe 1, the upper end of the first intake pipe 1 is connected to the transformer, the lower end of the first intake pipe 1 is fixedly connected to a first flange 2, the lower part of the first flange 2 is fixedly connected to an externally threaded thread sleeve 3, the externally threaded thread sleeve 3 is matched with an internally threaded thread sleeve 4, the lower end of the internally threaded thread sleeve 4 is fixedly connected to a second flange 5, the lower part of the second flange 5 is fixedly connected to a second intake pipe 6, the lower end of the second intake pipe 6 is matched with the upper end of a silicone respirator 7.

[0013] In this embodiment, a sealing ring 41 is provided at the bottom of the internal threaded thread sleeve 4. When the internal threaded thread sleeve 4 is threadedly connected with the external threaded thread sleeve 3, the port of the external threaded thread sleeve 3 is tightly attached to the surface of the sealing ring 41, so that the connection is in a sealed state while ensuring that the first intake pipe 1 is connected to the second intake pipe 6. It should be understood that an annular platform is provided at the bottom of the internal threaded thread sleeve 4 to facilitate the placement of the sealing ring 41.

[0014] In this embodiment, the cover 8 is a cylinder with one end blocked, and its inner cylinder wall is provided with threads, which can be matched and connected with the external threaded thread sleeve 3; a sealing gasket 81 is provided at the bottom of the inner cylinder of the cover 8; the function of the cover 8 is to screw the cover 8 into the end of the external threaded thread sleeve 3 for sealing when removing the old silicone respirator 7, and after the preparation of the new silicone respirator 7 is completed, the cover 8 is removed and replaced with a new silicone respirator 7; and the function of the sealing gasket 81 provided at the bottom of the inner cylinder of the cover 8 is to ensure the sealing effect when sealing.

[0015] The working process of the present invention is as follows: Step 1: Apply to the dispatcher to change the transformer gas protection from tripping to signaling; Step 2: Close the main air intake pipe butterfly valve and unscrew the failed silicone respirator as a whole; Step 3, screw the air-locking cover 8 onto the external threaded sleeve 3; Step 4, take out the spare silicone respirator and complete the preparation work, including checking whether the sealing ring 41 is placed in the internal threaded thread sleeve 4, unscrewing the air-locking cover 8, and screwing the spare silicone respirator onto the external threaded thread sleeve 3 through the internal threaded thread sleeve 4; Step 5. Apply to the dispatcher to change the transformer gas protection from signal to tripping, and the silicone respirator replacement work is completed.

[0016] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A connection device that facilitates quick disassembly and assembly of the main transformer silicone breather, Features: The invention comprises a first air intake pipe (1), the lower end of which is fixedly connected to a first flange (2), the lower end of which is fixedly connected to an external threaded sleeve (3), the external threaded sleeve (3) is matched with an internal threaded sleeve (4), the lower end of which is fixedly connected to a second flange (5), the lower end of which is fixedly connected to a second air intake pipe (6), the lower end of which is matched with an upper end of a silicone respirator (7).

2. A connection device for facilitating quick disassembly and assembly of a main transformer silicone breather according to claim 1, Features: A sealing ring (41) is provided at the bottom of the internal threaded sleeve (4).

3. The connecting device for facilitating quick disassembly and assembly of the main transformer silicone breather according to claim 1, further comprising a sealing cover (8), Features: The sealing cover (8) is cylindrical with one end blocked, and its inner wall is provided with threads, which can be matched and connected with the external threaded sleeve (3).

4. A connection device for facilitating quick disassembly and assembly of a main transformer silicone breather according to claim 3, Features: A sealing gasket (81) is provided at the bottom of the inner cylinder of the sealing cover (8).

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