CN214277541U - Novel transformer oil sampling equipment - Google Patents

Abstract

The utility model discloses a novel transformer equipment of drawing oil sample, including the oil storage bottle, the oil storage bottle top is provided with the slide switch who controls whether it communicates with the external world, the oil storage bottle bottom is provided with into oil pipe and play oil pipe respectively, it has the pipe to advance oil pipe intercommunication, the bottom of pipe is connected with first magnet, first magnet top is connected with the spring, the spring top is connected with second magnet, first magnet is connected with the floater, the floater is installed on the pipe, it is provided with the movable check valve to go out between oil pipe and the oil storage bottle, it has back oil pipe to go out oil pipe intercommunication, back oil pipe and oil storage bottle intercommunication, it passes through movable check valve control to return oil pipe and go out the break-make state between the oil pipe. This equipment has assembled the function of three-way valve and oil storage bottle, makes the sample that the operation personnel can be more convenient.

Description

Novel transformer oil sampling equipment

Technical Field

The utility model relates to an electric power construction field, concretely relates to novel transformer oil sampling equipment.

Background

The oil immersed transformer is the most widely applied type of transformer in the current power system, the winding and the iron core of the oil immersed transformer are completely immersed in insulating oil, when the inside of the transformer is overheated or has a discharge fault, the insulating oil can be cracked to generate fault gas to be dissolved in the oil, and the running state of equipment can be known through oil quality testing and analysis of the dissolved gas in the oil. The national standards clearly stipulate that in tests such as measurement of trace moisture in oil and analysis of dissolved gas, oil samples are required to be obtained under a sealed condition and are not required to be in contact with air.

At present, the three-way valve is generally adopted for collecting the oil sample, the three-way valve needs to be rotated for many times in the process of collecting the oil sample, the steps are complex, dead oil in the sampling valve is easy to forget to discharge, and then the component content in the oil sample is greatly different from the actual value in the oil in the device.

The conventional oil sampling operation steps are as follows:

1) the outer cover of the sampling valve of the equipment is taken down, a hose is connected to a small nozzle of the sampling valve, and then an oil drainage screw is opened to enable oil to flow out of a flushing pipeline through the hose so as to remove air in the pipeline and 'dead oil' in the sampling valve. The amount of oil discharged in this process is determined according to the following two points: firstly, oil drainage of equipment (such as a sleeve) with less oil quantity is required to be reduced as much as possible; and the 'dead oil' in the sampling valve or at the installation position of the sampling valve is large in volume, and more oil should be discharged.

2) The oil drain screw is closed, and the other end of the sampling hose is connected with the injector by a metal tee joint.

3) Opening the oil discharge screw, rotating the three-way valve to communicate the injector with the equipment, and allowing a small amount of oil to enter the injector so as to wet and flush the injector with the oil; the three-way valve is then rotated to connect the syringe to the outside, and the syringe barrel is then pushed to expel the air and oil from the syringe and allow the oil to fill the "dead volume" at the top of the syringe.

4) And rotating the three-way valve to communicate the equipment with the injector again, so that the oil in the equipment slowly enters the injector under natural pressure.

5) When the oil sample in the injector reaches the required volume, the three-way valve is closed, the metal three-way valve is pulled out from the injector, the injector is sealed by the small rubber head (the air in the small rubber head is discharged as much as possible), and then the injector is placed in a special oil sample box.

When the oil is taken through the three-way valve, the steps are complex, the three-way valve needs to be controlled for many times, the discharged dead oil can not be directly discharged on a working site generally, and the oil needs to be taken through a container, so that more than two people are needed for operation, and the difficulty of site work is increased.

Disclosure of Invention

To the problem, the utility model discloses a novel transformer oil sampling equipment, this equipment have assembled the function of three-way valve and oil storage bottle, make the operation personnel sample that can be more convenient.

The utility model provides a novel transformer oil sampling equipment, includes the oil storage bottle, the oil storage bottle top is provided with the slide switch who controls its and external whether intercommunication, oil storage bottle bottom is provided with respectively advances oil pipe and goes out oil pipe, it has the pipe to advance oil pipe intercommunication, the bottom of pipe is connected with first magnet, first magnet top is connected with the spring, the spring top is connected with second magnet, first magnet is connected with the floater, the floater is installed on the pipe, it is provided with the movable check valve to go out between oil pipe and the oil storage bottle, it has back oil pipe to go out oil pipe intercommunication, back oil pipe and oil storage bottle intercommunication, return oil pipe and go out the break-make state between the oil pipe and pass through movable check valve control.

Preferably, the oil inlet pipe and the oil outlet pipe are both provided with control valves.

Preferably, a bottle cap is arranged above the oil storage bottle, and the sliding switch is arranged on the bottle cap.

Preferably, a sealing slideway is arranged in the oil storage bottle, and the guide pipe is in sliding connection with the sealing slideway.

Preferably, the oil return pipe is arranged vertically, the bottom end of the oil return pipe is communicated with the oil outlet pipe, and the top end of the oil return pipe is higher than an oil plane in the oil storage bottle.

The utility model has the advantages that:

the utility model discloses compare with using the three-way valve oil sample:

1) this equipment has assembled the function of three-way valve and oil storage bottle, makes the work that the operation personnel can be more convenient.

2) The operator only needs to set the height of the floating ball, so that the dead oil in the equipment can be discharged, and the dead oil amount can be controlled accurately. After the dead oil is discharged, the valve can be automatically switched to be connected with the injector without rotating the valve.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of the slide switch;

FIG. 3 is a first state diagram of the present invention for taking an oil sample;

FIG. 4 is a second diagram of the oil sampling state of the present invention;

FIG. 5 is a third diagram of the oil sampling state of the present invention;

FIG. 6 is a fourth state diagram of the present invention for taking an oil sample;

FIG. 7 is a fifth diagram of the oil sampling state of the present invention;

in the figure: the device comprises a bottle cap 1, an oil return pipe 2, a floating ball 3, a guide pipe 4, a control valve 5, an oil outlet pipe 6, a valve plate 7, a sealing slideway 8, an oil inlet pipe 9, a magnet 10, a spring 11, an oil storage bottle 12 and a sliding switch 13.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present invention, it should be understood that the terms "inside", "outside", "left" and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

The utility model discloses a transformer oil sampling equipment as shown in figures 1-2, the main body oil storage bottle 12 of the equipment is made of corrosion-resistant light material. The bottle cap 1 is a bottle cap and can be unscrewed from an oil storage bottle, and the bottle cap is provided with a sliding switch 13 which can be closed to isolate the bottle cap from the outside and can also be opened to be communicated with the outside; 9 is an oil inlet pipe which is connected with oil filling equipment; an oil outlet pipe 6 connected with the injector; a control valve 5 is used for controlling oil inlet and oil outlet; 10 is magnet, 11 is the spring, 3 is the floater, the spring sets up a magnet respectively from top to bottom, the floater is connected with the magnet of bottom through the stay cord, bottom magnet and floater all are connected with pipe 4, magnet, spring, the floater three is mutually supported, control pipe 4's lift, initial condition is that pipe 4 links to each other with advancing oil pipe 9, two magnets receive the appeal that the elasticity of spring is greater than magnet promptly, along with oil flows into the oil storage bottle gradually, floater 3 receives a buoyancy that rises, buoyancy passes through pipe 4 and links to each other with lower magnet and spring lower extreme down, offset the elasticity of spring, when exceeding the critical value, two magnets attract rapidly, make pipe 4 rise, the pipeline to oil storage bottle oiling is closed, the pipeline to syringe oiling is opened. And 7, a valve plate is opened when oil flows from the oil inlet pipe side, and is closed when oil flows from the oil outlet pipe side, so that the oil flows into the oil return pipe.

The method comprises the following specific steps:

1. first, the oil inlet pipe 9 is connected to the oil filling equipment, the oil outlet pipe 6 is connected to the injector, and the two control valves 5 are opened. The oil now flows as shown in FIG. 3;

2. as the oil is continuously injected into the oil storage bottle 12, the floating ball 3 receives an upward buoyancy, and the buoyancy is transmitted to the magnet and the spring through the conduit 4 as shown in fig. 4;

3. when the buoyancy and the attraction of the magnets are larger than the elastic force of the spring, the two magnets are quickly attracted to drive the guide pipe 4 to slide upwards in the sealed slideway 8, at the moment, the pipeline for filling oil into the oil storage bottle is closed, and the pipeline for filling oil into the injector is opened. The valve plate 7 is flushed by oil and simultaneously plugs an oil inlet of the oil return pipe. As shown in fig. 5;

4. the injector is communicated with the equipment, and a small amount of oil is led into the injector so as to wet and flush the injector with the oil; after flushing, the syringe barrel is pushed to expel air and oil from the syringe and allow the oil to fill the "dead volume" at the top of the syringe. At this time, the valve plate 8 is subjected to pressure from the oil outlet, the valve plate 8 is closed, and the oil inlet of the oil return pipe is opened, as shown in fig. 6;

5. when the pushing of the injector core is stopped, the valve plate 8 is flushed by oil because the pressure of the oil filling equipment is greater than that of the oil return pipe, and the oil inlet of the oil return pipe is blocked. And communicating the equipment with the injector again, and slowly introducing the oil in the equipment into the injector under natural pressure. As shown in fig. 7;

6. when the oil sample in the injector reaches the required volume, the two valves are closed, the sliding switch of the bottle cap is closed at the same time, the injector is pulled down, the injector is sealed by the small rubber head (the air in the small rubber head is discharged as much as possible), and then the injector is placed in a special oil sample box.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (5)

1. The utility model provides a novel transformer oil sampling equipment, a serial communication port, including the oil storage bottle, the oil storage bottle top is provided with the slide switch who controls its and external whether intercommunication, oil storage bottle bottom is provided with respectively advances oil pipe and goes out oil pipe, it has the pipe to advance oil pipe intercommunication, the bottom of pipe is connected with first magnet, first magnet top is connected with the spring, the spring top is connected with second magnet, first magnet is connected with the floater, the floater is installed on the pipe, it is provided with the movable check valve to go out between oil pipe and the oil storage bottle, it has back oil pipe to go out oil pipe intercommunication, return oil pipe and oil storage bottle intercommunication, it passes through movable check valve control to return oil pipe and go out the break-make state between the oil pipe.

2. The novel transformer oil sampling device of claim 1, wherein the oil inlet pipe and the oil outlet pipe are provided with control valves.

3. The novel transformer oil sampling device of claim 1, wherein a bottle cap is arranged above the oil storage bottle, and the sliding switch is arranged on the bottle cap.

4. The novel transformer oil sampling device of claim 1, wherein a sealing slideway is arranged in the oil storage bottle, and the guide pipe is connected with the sealing slideway in a sliding manner.

5. The novel transformer oil sampling device of claim 1, wherein the oil return pipe is vertically arranged, the bottom end of the oil return pipe is communicated with the oil outlet pipe, and the top end of the oil return pipe is higher than the oil level in the oil storage bottle.

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