CN209802736U - Auxiliary sampling device for insulating oil - Google Patents
Auxiliary sampling device for insulating oil Download PDFInfo
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- CN209802736U CN209802736U CN201920359031.4U CN201920359031U CN209802736U CN 209802736 U CN209802736 U CN 209802736U CN 201920359031 U CN201920359031 U CN 201920359031U CN 209802736 U CN209802736 U CN 209802736U
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- insulating
- sampling device
- insulating oil
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Abstract
The application relates to the technical field of electrical equipment detection, in particular to an auxiliary sampling device for insulating oil. In an electric power system, in order to ensure the stable operation of oil-filled electrical equipment, the oil-filled electrical equipment needs to be detected, and sampling analysis is performed on insulating oil inside the oil-filled electrical equipment, which is a common means. However, the existing insulating oil sampling method has poor sealing performance, so that the insulating oil is exposed in the air, and the detection result is inaccurate. The application provides a sampling device is assisted to insulating oil adopts the oil feed hose to be linked together through inside hollow oil transportation cavity and the hose that produces oil, and the oil extraction pipe is linked together with the oil transportation cavity, is close to oil feed hose one end in the oil transportation cavity and sets up the check valve, sets up on the oil extraction pipe and presses the valve. The application has satisfied the leakproofness requirement of sample in-process, has ensured the accuracy that detects, and simultaneously, the supplementary sampling device of insulating oil of this application easily operates, simple structure, and the cost is lower, is suitable for and uses widely in the electric power industry.
Description
Technical Field
The application relates to the technical field of electrical equipment detection, in particular to an auxiliary sampling device for insulating oil.
Background
Oil-filled electrical equipment is used in electrical power systems in a very wide variety of applications and is of irreplaceable importance. Therefore, it is one of the main contents of electric power operation to ensure the stable operation of the oil-filled electrical equipment. The oil-filled electrical equipment is filled with insulating oil, and the operating state of the oil-filled electrical equipment can be deduced by sampling, analyzing and testing the insulating oil, so that the existing problems can be found in time, and early latent faults of the oil-filled electrical equipment can be eliminated, thereby being beneficial to the stable operation of the oil-filled electrical equipment.
At present, in the aspect of insulating oil detection, analysis of dissolved gas in insulating oil and determination of total gas content are two important items. When insulating oil sampling is carried out aiming at the two projects, the syringe is generally adopted in the industry for sucking. The sampling mode needs to lead out the insulating oil in the oil-filled electrical equipment to a hose or a container, then a certain amount of insulating oil is sucked by a syringe, and finally the syringe is sealed by a rubber cap to finish sampling.
The traditional syringe sampling method causes the insulation oil to be exposed to the air due to poor sealing performance, so that the measurement result is interfered. The collected insulating oil is different from the insulating oil in the oil-filled electrical equipment, so that the detection result cannot accurately reflect the running state of the oil-filled electrical equipment, and the detection effect is not ideal.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an auxiliary sampling device of insulating oil to solve the relatively poor inaccurate problem of measuring result that causes of traditional syringe sample leakproofness.
the technical scheme adopted by the application is as follows:
An insulating oil sampling assistance device comprising: the oil inlet hose, the oil conveying cavity, the oil discharge pipe and the oil outlet hose;
the oil inlet hose is communicated with the oil outlet hose through the hollow oil conveying cavity, and the oil discharge pipe is communicated with the oil conveying cavity;
One end of the oil conveying cavity, which is close to the oil inlet hose, is provided with a check valve, and the oil discharge pipe is provided with a pressing valve.
Optionally, the oil pipe is further provided with a flushing oil pipe, the flushing oil pipe is communicated with the oil transportation cavity, and a spring type one-way valve is arranged on the flushing oil pipe.
Optionally, the lower part of the flushing oil pipe is communicated with the lower part of the oil discharge pipe and then extends to form a Y-shaped oil pipe.
Optionally, the oil transportation cavity is a cylinder, two bottom surfaces of the cylinder are respectively connected with the oil inlet hose and the oil outlet hose, and the side wall of the cylinder is connected with the oil discharge pipe.
optionally, one end of the oil transportation cavity connected with the oil inlet hose is in a shape of a circular truncated cone, and the upper bottom surface of the circular truncated cone is connected with the oil inlet hose.
Optionally, two end surfaces of the oil transportation cavity extend outwards to form a hollow pipe, and the oil inlet hose and the oil outlet hose are sleeved on the hollow pipe.
optionally, the oil inlet hose, the oil outlet hose and the oil discharge pipe are circular hollow pipes.
Optionally, the joint of the oil outlet hose and the oil transportation cavity is located at the lower part of the end face of the oil transportation cavity.
The beneficial effect of adopting above-mentioned technical scheme is:
The application discloses insulating oil sample auxiliary device includes: the oil inlet hose, the oil conveying cavity, the oil discharge pipe and the oil outlet hose; the oil inlet hose is communicated with the oil outlet hose through an oil conveying cavity which is hollow inside, and the oil discharge pipe is communicated with the oil conveying cavity; one end of the oil conveying cavity, which is close to the oil inlet hose, is provided with a check valve, and the oil discharge pipe is provided with a pressing valve. During sampling, the insulating oil flows into the oil conveying cavity through the oil inlet hose and then flows into the injector through the oil outlet hose, the insulating oil is not exposed in the air in the whole process, the sampling tightness is good, and the measuring result is accurate. In addition, the arrangement of the oil discharge pipe is favorable for flushing the insulating oil sampling auxiliary device. Flushing can create a more stable condition for sampling, further reducing the difference between the sampled sample and the insulating oil inside the oil-filled electrical apparatus.
Drawings
in order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of the present application;
FIG. 2 is a schematic structural diagram of another embodiment of the present application;
FIG. 3 is a schematic structural diagram of another embodiment of the present application;
Fig. 4 is a schematic structural diagram of another embodiment of the present application.
Illustration of the drawings:
Wherein, the oil-feeding hose is 1-an oil-feeding hose, the check valve is 2-an oil-conveying cavity, the oil-discharging hose is 4-an oil-discharging hose, the pressing valve is 5-a oil-discharging pipe, the spring-type check valve is 7-a flushing oil pipe and the Y-shaped oil pipe are 8-a flushing oil pipe.
Detailed Description
Referring to fig. 1, a schematic structural diagram of an insulating oil sampling auxiliary device is shown.
The application provides insulating oil sample auxiliary device includes: the oil-discharging device comprises an oil inlet hose 1, an oil conveying cavity 3, an oil discharging pipe 6 and an oil outlet hose 4; the oil inlet hose 1 is communicated with the oil outlet hose 4 through an oil conveying cavity 3 with a hollow inner part, and the oil discharge pipe 6 is communicated with the oil conveying cavity 3; one end of the oil transportation cavity 3, which is close to the oil inlet hose 1, is provided with a check valve 2, and a pressing valve 5 is arranged on the oil discharge pipe 6.
The oil inlet hose 1 and the oil outlet hose 4 are adopted in the application, because the hoses have better sealing property; the oil conveying cavity 3 and the oil discharge pipe 6 are arranged, so that insulating oil discharged from the front can be washed off firstly, and then sampling is carried out, so that the obtained sample is low in interference influence degree, and the detection result is more accurate; the check valve 2 is arranged, so that the insulating oil can flow towards one direction, sampling is facilitated, and meanwhile the insulating oil can be prevented from flowing back into target equipment to cause pollution; set up on oil extraction pipe 6 and press valve 5, when pressing the back, press valve 5 to be in the open mode, make things convenient for insulating oil to flow out, do benefit to the completion of washing process, press the back once more, press valve 5 to close, play confined effect this moment.
In insulating oil testing, flushing is a common and important step. The flushing refers to flushing the sampling device with a detected working medium, such as the insulating oil in this embodiment, before sampling, so that the insulating oil flows through the inside of the device and is then discharged, thereby completing a flushing process. The flushing may be performed one or more times as desired, including the present embodiment and syringe. After the sampling device is washed, impurities are washed away due to the flowing of the insulating oil, and the insulating oil forms a layer of insulating oil film on the surface of the inner wall of the sampling device. The insulating oil film provides an environment which is relatively close to the insulating oil in the detected equipment, and the obtained insulating oil is closer to the insulating oil in the detected equipment during formal sampling, so that the influence of interference and pollution is small.
With reference to fig. 2, it is understood that in another embodiment of the present application, on the basis of the previous embodiment, the present embodiment further includes a flushing oil pipe 8, the flushing oil pipe 8 is communicated with the oil transportation cavity 3, and the flushing oil pipe 8 is provided with a spring-type check valve 7.
The spring type one-way valve 7 can be opened only by certain pressure and has a non-return function, and only allows the insulating oil to flow through in one direction when arranged in the flushing oil pipe 8. In this embodiment, the oil outlet hose 4 is connected to a syringe, when the pressing valve 5 is in a closed state, the oil outlet valve of the detected oil-filled electrical equipment is opened, after a period of time, the insulating oil flows into the syringe, when the amount of the insulating oil in the syringe reaches a predetermined standard, the syringe is pushed back to push the insulating oil into the oil transportation cavity 3, at this time, the insulating oil in the oil transportation cavity 3 is subjected to an increasing pressure, when the pressure reaches a certain value, the spring type check valve 7 is pressed, the spring is compressed to open the valve, and the insulating oil is discharged from the outlet of the flushing oil pipe 8 through the spring type check valve 7. The spring type check valve 7 is arranged, the opening and closing of the spring type check valve depend on the pressure, and when the insulating oil is flushed and discharged, the valve is not required to be manually operated to be opened and closed, so that the operation is simple and easy to operate, the time is saved, and the sampling efficiency is improved.
Referring to fig. 3, optionally, the lower portion of the flushing oil pipe 8 is communicated with the lower portion of the oil discharge pipe 6 and then extends to form a Y-shaped oil pipe 9. Two pipe unifications form a shared oil pipe, and material saving has reduced insulating oil sample auxiliary device's volume, the sampling operation of the staff of being convenient for more.
The oil transportation cavity 3 can be a cuboid or a cylinder, when the oil transportation cavity 3 is a cylinder, the two bottom surfaces of the cylinder are respectively connected with the oil inlet hose 1 and the oil outlet hose 4, and the side wall of the cylinder is connected with the oil discharge pipe 6.
With reference to fig. 4, optionally, one end of the oil transportation cavity 3 connected to the oil inlet hose 1 is set to be a circular truncated cone, and the upper bottom surface of the circular truncated cone is connected to the oil inlet hose 1. The oil conveying cavity 3 is arranged to be in a round table shape, when insulating oil flows into the oil conveying cavity 3, the insulating oil can slowly descend and gush along the inner wall of the side face of the round table, then the insulating oil waterfall type flow is prevented from flowing into the oil conveying cavity 3, the impact of the insulating oil flowing into the oil conveying cavity 3 is weakened due to the round table shape, and the sampling work is facilitated.
optionally, two end surfaces of the oil transportation cavity 3 extend outwards to form a hollow tube, and the oil inlet hose 1 and the oil outlet hose 4 are sleeved on the hollow tube.
Because the two end surfaces of the oil transportation cavity 3 are relatively flat, when the oil transportation cavity 3 is connected with the oil inlet hose 1 and the oil outlet hose 4, sealing treatment is often needed at the joint, in the embodiment, the connecting port of the oil transportation cavity 3 is improved, two end surfaces of the oil transportation cavity 3 extend outwards to form a hollow pipe, the hollow pipe is used for connecting the oil inlet hose 1 and the oil outlet hose 4, and because the hoses have certain tension property, the ends of the oil inlet hose 1 and the oil outlet hose 4 are stretched and then sleeved on the hollow pipe to play a role in sealing and communication.
Optionally, the oil inlet hose 1, the oil outlet hose 4 and the oil discharge pipe 6 are circular hollow pipes. The circular hollow tube is used, in actual work, due to the fact that the side wall is smooth, grabbing discomfort caused by edges and corners is avoided, and operation comfort is improved.
Optionally, the joint of the oil outlet hose 4 and the oil transportation cavity 3 is located at the lower part of the end surface of the oil transportation cavity 3. When this embodiment is in actual use, 4 one ends of the oil output hose are communicated with the oil transportation cavity 3, the other end of the oil output hose 4 is communicated with the injector, and the insulating oil in the oil transportation cavity 3 needs to flow into the injector through the oil output hose 4. A certain amount of air exists in the oil transportation cavity 3, and the joint part of the oil outlet hose 4 and the oil transportation cavity 3 is arranged at the lower part of the end face of the oil transportation cavity 3, so that the insulating oil can quickly enter an injector, and the sampling time is shortened.
The following detailed description of specific working modes of the embodiments is provided to enhance the understanding of the present application.
Referring to the attached drawing 4, when the device is used, the oil inlet hose 1 is connected with an oil discharge port of target equipment needing sampling, the oil outlet hose 4 is connected with an injector, the pressing valve 5 is pressed, the oil discharge valve of the target equipment is opened at the moment, insulating oil begins to flow into the oil transportation cavity 3 through the oil inlet hose 1, the pressing valve 5 is in an open state after being pressed, the insulating oil is discharged through the oil discharge pipe 6 after a period of time, and a recovery barrel is arranged below the oil discharge pipe 6 and used for receiving the insulating oil discharged through the oil discharge pipe 6. When the discharged insulating oil reaches a certain amount, the pressing valve 5 is loosened, the pressing valve 5 is in a closed state at the moment, after a period of time, the insulating oil starts to flow into the injector through the oil outlet hose 4, the insulating oil pushes the piston to move to continuously fill the injector, when the insulating oil in the injector reaches a certain amount, a worker reversely pushes the injector piston to extrude the insulating oil back to the oil conveying cavity 3, at the moment, the spring piece of the spring type one-way valve 7 is pushed by the insulating oil in the oil conveying cavity 3 under the pressure action, the spring type one-way valve 7 is opened, and the insulating oil flows out through the flushing oil pipe 8 to enter a recovery barrel below. When the plunger in the syringe is at zero gauge, the operator releases the force on the syringe plunger.
The process belongs to the washing link of the device before sampling, and the washing frequency is determined by workers. After the flushing was completed, sampling was started. At the moment, the oil drain valve of the target equipment is always in an open state, the insulating oil continuously flows into the oil conveying cavity 3, the insulating oil starts to flow into the injector after a period of time, when the amount of the insulating oil reaches the sampling standard, the oil drain valve of the target equipment is closed, the injector is separated from the oil outlet hose 4, the opening of the injector is sealed by a rubber cap, and the sampling is finished.
The embodiments provided in the present application are only a few examples of the general concept of the present application, and do not limit the scope of the present application. Any other embodiments extended according to the scheme of the present application without inventive efforts will be within the scope of protection of the present application for a person skilled in the art.
Claims (8)
1. An auxiliary sampling device for insulating oil, comprising: the oil-discharging device comprises an oil inlet hose (1), an oil conveying cavity (3), an oil discharging pipe (6) and an oil outlet hose (4);
The oil inlet hose (1) is communicated with the oil outlet hose (4) through the hollow oil conveying cavity (3), and the oil discharge pipe (6) is communicated with the oil conveying cavity (3);
One end of the oil conveying cavity (3) close to the oil inlet hose (1) is provided with a check valve (2), and the oil discharge pipe (6) is provided with a pressing valve (5).
2. The auxiliary insulating oil sampling device according to claim 1, further comprising a flushing oil pipe (8), wherein the flushing oil pipe (8) is communicated with the oil transportation cavity (3), and a spring-type check valve (7) is arranged on the flushing oil pipe (8).
3. The auxiliary insulating oil sampling device according to claim 2, characterized in that the lower part of the flushing oil pipe (8) is communicated with the lower part of the oil discharge pipe (6) and then extends to form a Y-shaped oil pipe (9).
4. the auxiliary insulating oil sampling device according to claim 1, wherein the oil transportation cavity (3) is a cylinder, two bottom surfaces of the cylinder are respectively connected with the oil inlet hose (1) and the oil outlet hose (4), and the side wall of the cylinder is connected with the oil discharge pipe (6).
5. The auxiliary insulating oil sampling device according to claim 1, wherein one end of the oil transportation cavity (3) connected with the oil inlet hose (1) is in a shape of a truncated cone, and the upper bottom surface of the truncated cone is connected with the oil inlet hose (1).
6. The auxiliary insulating oil sampling device according to claim 1, wherein two end faces of the oil transportation cavity (3) extend outwards to form a hollow tube, and the oil inlet hose (1) and the oil outlet hose (4) are sleeved on the hollow tube.
7. the auxiliary insulating oil sampling device according to claim 1, wherein the oil inlet hose (1), the oil outlet hose (4) and the oil discharge pipe (6) are circular hollow pipes.
8. The auxiliary insulating oil sampling device according to claim 1, characterized in that the joint of the oil outlet hose (4) and the oil transportation cavity (3) is located at the lower part of the end face of the oil transportation cavity (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920359031.4U CN209802736U (en) | 2019-03-21 | 2019-03-21 | Auxiliary sampling device for insulating oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920359031.4U CN209802736U (en) | 2019-03-21 | 2019-03-21 | Auxiliary sampling device for insulating oil |
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| Publication Number | Publication Date |
|---|---|
| CN209802736U true CN209802736U (en) | 2019-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920359031.4U Active CN209802736U (en) | 2019-03-21 | 2019-03-21 | Auxiliary sampling device for insulating oil |
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| CN (1) | CN209802736U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112343591A (en) * | 2020-09-24 | 2021-02-09 | 福建新达阀门有限公司 | Anti-freezing sampler |
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2019
- 2019-03-21 CN CN201920359031.4U patent/CN209802736U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112343591A (en) * | 2020-09-24 | 2021-02-09 | 福建新达阀门有限公司 | Anti-freezing sampler |
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