Sampling valve for electric oil-filled electrical equipment

Abstract

The utility model discloses a sampling valve for electric oil-filled electrical equipment, and belongs to the technical field of sampling valves. A sampling valve for electric oil-filled electrical equipment comprises a sampling valve body, an inner cavity is formed in the sampling valve body, an oil inlet communicated with the inner cavity is formed in one end of the sampling valve body in the horizontal direction, an oil taking opening communicated with the inner cavity is formed in the bottom wall of the sampling valve body in the vertical direction, and a ball is rotatably arranged in the inner cavity. The ball body is used for sealing the oil inlet and the oil taking opening at the same time. Through the rotatable ball body arranged in the sampling valve body, the oil inlet and the oil taking port can be sealed or communicated at the same time, and when sampling is needed, rotation of the ball body can be controlled by rotating the adjusting assembly, so that opening or closing of the oil inlet and the oil taking port is achieved, the sampling operation is simplified, and the sampling efficiency is improved. And the problem that the sampling operation is relatively tedious due to relatively high pressure in the pipeline is avoided, so that an operator can complete the sampling work more quickly and more accurately.

Description

TECHNICAL FIELD

[0001] The utility model relates to sampling valve technical field, concretely relates to a sampling valve for electric power oil-filled electrical equipment. BACKGROUND

[0002] In the power system, large oil-filled electrical equipment such as transformer is internally filled with transformer oil as insulation material, to judge the safe operation condition of transformer, the quality level of transformer oil can be detected, such as detecting the oil pressure resistance of transformer oil, the dissolved gas content in oil, etc. Therefore, a sampling valve needs to be arranged on the transformer body to take out the transformer oil from the sampling valve for chemical analysis.

[0003] The existing sampling valve is more cumbersome for the operator to take oil when sampling oil sample due to the large pressure difference inside and outside the pipeline. UTILITY MODEL CONTENT

[0004] The utility model provides a sampling valve for electric power oil-filled electrical equipment, which can overcome some or some defects of the prior art.

[0005] According to the sampling valve for electric power oil-filled electrical equipment, the sampling valve body is internally formed with an inner cavity, the sampling valve body is formed with an oil inlet communicated with the inner cavity at one end along the horizontal direction, the sampling valve body is formed with an oil outlet communicated with the inner cavity at the bottom wall along the vertical direction, a ball is rotatably arranged in the inner cavity, the ball is used for simultaneously sealing the oil inlet and the oil outlet, an adjusting assembly connected with the ball is arranged at the side wall of the sampling valve body, and the adjusting assembly is used for forming communication between the oil inlet and the oil outlet.

[0006] The rotatable ball arranged in the sampling valve body can simultaneously seal or communicate the oil inlet and the oil outlet, the rotation of the ball can be controlled by rotating the adjusting assembly when sampling is needed, so that the oil inlet and the oil outlet are opened or closed, the sampling operation is simplified, the problem of cumbersome sampling operation caused by the large pressure in the pipeline is avoided, and the operator can complete the sampling work more quickly and accurately.

[0007] It can be understood that, by rotatably arranging the oil inlet and the ball along the horizontal direction of the oil inlet, the influence of the internal pressure of the transformer on the sampling of the ball can be reduced, and the oil taking efficiency is improved.

[0008] Preferably, the outer wall of the ball has an oil storage groove recessed inward along the vertical direction and corresponding to the oil outlet, and the outer wall of the ball is formed with a through hole penetrating the oil storage groove along the horizontal direction and corresponding to the oil inlet.

[0009] The oil sampling operation is simplified by the oil storage tank and the through port, and the operator only needs to adjust the rotating angle of the ball to realize the oil sampling operation, thereby reducing the complexity of the sampling operation and improving the work efficiency.

[0010] It can be understood that the communication area between the oil extraction pipe and the oil storage tank can be adjusted according to the sampling requirement by rotating the angle of the ball, thereby facilitating the operator to better control the oil extraction amount.

[0011] Preferably, the sampling valve body is formed with a mounting cavity at the end away from the oil inlet, and the mounting cavity is formed with a clamping groove penetrating through the mounting cavity. The adjusting assembly comprises an adjusting piece rotatably arranged in the mounting cavity, and a rotating piece slidably arranged at the adjusting piece. An extension block is formed on the outer wall of the rotating piece and cooperates with the clamping groove. The clamping groove is used to limit the extension block in the circumferential direction.

[0012] Through the above structure, in use, the extension block is disengaged from the limitation of the clamping groove by pulling the rotating piece outward, and then the rotating piece drives the adjusting piece to adjust the ball. After the sampling is completed, the extension block is reset to be clamped in the clamping groove again, thereby improving the stability of the adjusting piece and the ball, and avoiding the misoperation of rotating the adjusting piece when not in use.

[0013] Preferably, a spline is formed on the outer wall of the adjusting piece, and a spline groove is formed on the rotating piece and cooperates with the spline. The spline groove is used to limit the rotating piece in the circumferential direction.

[0014] Through the above structure, the circumferential limitation of the rotating piece is realized, and the rotating piece can stably and accurately drive the adjusting piece to rotate when rotating.

[0015] Preferably, a spring is arranged between the mounting cavity and the rotating piece, and the spring is used to provide a spring force in the direction of the oil inlet.

[0016] Through the above structure, the extension block can always be in the clamping groove when not in use, thereby improving the stability of the rotating piece.

[0017] Preferably, a baffle is arranged at the end of the adjusting piece away from the ball, and a bolt is threadedly arranged at the adjusting piece and penetrates through the baffle. The baffle is used to limit the rotating piece in the horizontal direction. Therefore, the rotating piece is preferably limited to avoid falling off.

[0018] Preferably, an oil extraction pipe for storing oil is detachably arranged at the oil extraction port. An external thread part is formed on the outer wall of the oil extraction port, and an internal thread part is formed on the oil extraction pipe and cooperates with the external thread part in screwing.

[0019] Through the detachable arrangement of the oil extraction pipe, the operator can conveniently detach it from the oil extraction port after completing the sampling for cleaning, replacement or storage. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of a sampling valve for power oil-filled electrical equipment;

[0021] Figure 2 It is a schematic diagram of the overall explosion of a sampling valve for power oil-filled electrical equipment;

[0022] Figure 3 It is a schematic diagram of the sampling valve body side view profile structure of a sampling valve for power oil-filled electrical equipment;

[0023] Figure 4 It is a schematic diagram of the installation cavity profile of a sampling valve for power oil-filled electrical equipment.

[0024] Figure 5 It is a schematic diagram of the regulating assembly profile of a sampling valve for power oil-filled electrical equipment. DETAILED DESCRIPTION

[0025] In order to further understand the content of the present application, the present application will be described in detail in conjunction with the embodiments. It should be understood that the embodiments are only to explain the present application and not to limit it.

[0026] Embodiment 1

[0027] Please refer to Figures 1-5 The sampling valve for power oil-filled electrical equipment provided in the embodiment includes a sampling valve body 110, an inner cavity 310 is formed inside the sampling valve body 110, an oil inlet 120 is formed at one end of the sampling valve body 110 in the horizontal direction and communicates with the inner cavity 310, an oil outlet 130 is formed at the bottom wall of the sampling valve body 110 in the vertical direction and communicates with the inner cavity 310, a ball is rotatably arranged in the inner cavity 310, the ball is used to simultaneously seal the oil inlet 120 and the oil outlet 130, a regulating assembly 150 is arranged on the side wall of the sampling valve body 110 and connected with the ball, and the regulating assembly 150 is used to form communication between the oil inlet 120 and the oil outlet 130.

[0028] The sampling valve for power oil-filled electrical equipment of the present application can simultaneously seal or communicate the oil inlet 120 and the oil outlet 130 through the rotatable ball arranged inside the sampling valve body 110, and the rotation of the ball can be controlled by rotating the regulating assembly 150 when sampling is needed, so as to realize the opening or closing of the oil inlet 120 and the oil outlet 130, simplify the sampling operation, avoid the problem that the sampling operation of the larger pressure in the pipeline is more complicated, and enable the operator to more quickly and accurately complete the sampling work.

[0029] It can be understood that, by the rotatable arrangement of the oil inlet 120 and the ball along the horizontal direction of the oil inlet 120, the influence of the internal pressure of the transformer on the sampling of the ball can be reduced, thereby improving the oil sampling efficiency.

[0030] In the embodiment, the outer wall of the ball is provided with an oil storage groove 340 corresponding to the oil inlet 120, which is recessed inward along the vertical direction.

[0031] Through the arrangement of the oil storage groove 340 and the through hole 350, the sampling operation is simplified, and the operator only needs to adjust the rotation angle of the ball through the adjusting assembly 150 to realize the sampling operation of the oil sample, thereby reducing the complexity of the sampling operation and improving the work efficiency.

[0032] It can be understood that, by adjusting the angle of the ball, the communication area between the oil inlet pipe 140 and the oil storage groove 340 can be adjusted according to the sampling requirement, thereby facilitating the operator to better control the oil sampling amount.

[0033] In the embodiment, the sampling valve body 110 is provided with an installation cavity 410 at the end away from the oil inlet 120, and the installation cavity 410 is provided with a clamping groove 510 penetrating the installation cavity 410. The adjusting assembly 150 includes an adjusting part 330 rotatably arranged in the installation cavity 410, and a rotating part 530 slidably arranged at the adjusting part 330. The outer wall of the rotating part 530 is provided with an extension block 540 matched with the clamping groove 510, and the clamping groove 510 is used to limit the extension block 540 circumferentially.

[0034] Through the above structure, in use, the extension block 540 is pulled out of the limiting of the clamping groove 510 by pulling the rotating part 530 outward, and then the rotating part 530 is rotated to drive the adjusting part 330 to adjust the ball. After the sampling is completed, the extension block 540 is reset and clamped in the clamping groove 510 again, thereby improving the stability of the adjusting part 330 and the ball, and avoiding the misoperation of rotating the adjusting part 330 when not in use.

[0035] In the embodiment, the outer wall of the adjusting part 330 is provided with a spline 520, and the rotating part 530 is provided with a spline groove matched with the spline 520, and the spline groove is used to limit the rotating part 530 circumferentially.

[0036] Through the above structure, the circumferential limiting of the rotating part 530 is realized, and the stable and accurate rotation of the rotating part 530 to drive the adjusting part 330 is ensured.

[0037] In the embodiment, a spring 420 is arranged between the installation cavity 410 and the rotating part 530, and the spring 420 is used to provide a spring force in the direction of the oil inlet 120.

[0038] Through the above structure, the extension block 540 can be always at the card slot 510 when not in use, thereby improving the stability of the rotating member 530.

[0039] In the embodiment, the adjusting member 330 is provided with a baffle 360 away from the ball, and the adjusting member 330 is provided with a bolt 370 penetrating the baffle 360, and the baffle 360 is used for limiting the rotating member 530 in the horizontal direction. Therefore, the rotating member 530 is preferably limited to avoid falling off.

[0040] In the embodiment, the oil taking port 130 is detachably provided with an oil taking pipe 140 for storing oil, and the outer wall of the oil taking port 130 is provided with an external thread part 210, and the oil taking pipe 140 is provided with an internal thread part 220 threadedly matched with the external thread part 210.

[0041] Through the detachable design of the oil taking pipe 140, the operator can conveniently detach the oil taking pipe 140 from the oil taking port 130 after sampling, and clean, replace or store it.

[0042] It is easily understood that, based on one or more embodiments provided in the present application, other embodiments can be obtained by combining, splitting, recombining, etc. of the embodiments of the present application, and these embodiments do not exceed the protection scope of the present application.

[0043] The utility model and its implementation mode are described above, and the description is not restrictive. The embodiments shown are only part of the implementation mode of the utility model, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by this, without departing from the creative purpose of the utility model, similar structural modes and embodiments can be designed without creativity, which should belong to the protection scope of the utility model.

[0044] It is easily understood that, based on one or more embodiments provided in the present application, other embodiments can be obtained by combining, splitting, recombining, etc. of the embodiments of the present application, and these embodiments do not exceed the protection scope of the present application.

[0045] The utility model and its implementation mode are described above, and the description is not restrictive. The embodiments shown are only part of the implementation mode of the utility model, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by this, without departing from the creative purpose of the utility model, similar structural modes and embodiments can be designed without creativity, which should belong to the protection scope of the utility model.

Claims

1. A sampling valve for electric power oil-filled electrical equipment, characterized by, The sampling valve body (110) is internally formed with an inner cavity (310), and an oil inlet (120) is formed at one end of the sampling valve body (110) in the horizontal direction and communicates with the inner cavity (310); an oil outlet (130) is formed at the bottom wall of the sampling valve body (110) in the vertical direction and communicates with the inner cavity (310); a ball is rotatably arranged in the inner cavity (310) and is used to simultaneously seal the oil inlet (120) and the oil outlet (130); an adjusting assembly (150) is arranged on the side wall of the sampling valve body (110) and is connected with the ball, and is used to form communication between the oil inlet (120) and the oil outlet (130).

2. A sample valve for electric power oil-filled electrical equipment according to claim 1, characterized in that: The outer wall of the ball is provided with an oil storage groove (340) which is recessed inward in the vertical direction and corresponds to the oil outlet (130); and the outer wall of the ball is formed with a through hole (350) which penetrates the oil storage groove (340) in the horizontal direction and corresponds to the oil inlet (120).

3. A sampling valve for electric power oil-filled electrical equipment according to claim 1, characterized in that: An installation cavity (410) is formed at the end of the sampling valve body (110) away from the oil inlet (120), and a clamping groove (510) is formed in the installation cavity (410) and penetrates the installation cavity (410); the adjusting assembly (150) comprises an adjusting piece (330) which is rotatably arranged in the installation cavity (410); a rotating piece (530) is slidably arranged on the adjusting piece (330); the outer wall of the rotating piece (530) is formed with an extension block (540) which cooperates with the clamping groove (510); and the clamping groove (510) is used to limit the extension block (540) in the circumferential direction.

4. A sampling valve for electric power oil-filled electrical equipment according to claim 3, characterized in that: The outer wall of the adjusting piece (330) is formed with a spline (520), and the rotating piece (530) is formed with a spline groove which cooperates with the spline (520) and is used to limit the rotating piece (530) in the circumferential direction.

5. A sampling valve for electric power oil-filled electrical equipment according to claim 3, characterized in that: A spring (420) is arranged between the installation cavity (410) and the rotating piece (530) and is used to provide a spring force in the direction of the oil inlet (120).

6. A sampling valve for electric power oil-filled electrical equipment according to claim 3, characterized in that: A baffle (360) is arranged at the end of the adjusting piece (330) away from the ball, and a bolt (370) is threadedly arranged on the adjusting piece (330) and penetrates the baffle (360); the baffle (360) is used to limit the rotating piece (530) in the horizontal direction.

7. A sampling valve for electric power oil-filled electrical equipment according to claim 1, characterized in that: An oil outlet pipe (140) for storing oil is detachably arranged on the oil outlet (130), and an outer threaded portion (210) is formed on the outer wall of the oil outlet (130); and an inner threaded portion (220) is formed on the oil outlet pipe (140) and threadedly cooperates with the outer threaded portion (210).

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