Oil sample collecting device for oil filling port of box transformer substation

Abstract

The invention relates to the technical field of oil sample collection, and discloses a box transformer substation oil injection port oil sample collection device which comprises an operating rod, a driving pump, a hose and a connecting valve. The operating rod is hollow and internally provided with an oil taking channel, the hose and the connecting valve are connected with the two ends of the operating rod respectively and communicate with the oil taking channel, and the driving pump is arranged on the operating rod, communicates with the oil taking channel and is used for pumping oil in the hose to the connecting valve. The connecting valve is used for controlling opening and closing of the oil taking channel, during oil taking, an operator does not need to be close to the transformer, the operator can be far away from a high-voltage part through the operating rod, oil can be pumped out through the oil taking opening through the hose, the oil is pumped out under the action of the driving pump, and the technical problems that in the prior art, the operation and maintenance workload is increased, and power generation resources are wasted are solved. The technical effects of not wasting power generation resources, avoiding electric shock and being small in operation and maintenance workload are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of oil sample collection, in particular to an oil sample collection device for a box-type transformer oil filling port. Background Art

[0002] To ensure the safe operation of electrical equipment, gas chromatography analysis of oil samples from box-type transformers is a critical testing step. However, because existing box-type transformers lack drain valves at their oil ports, the high-voltage side of the transformers is too close to the 35kV high-voltage cables. Manual oil sampling is not performed at a safe distance, and the safe distance from live equipment does not meet safety regulations. This poses a risk of high-voltage electric shock. Therefore, collecting oil samples from box-type transformers requires power outages to the power generation equipment, increasing maintenance workload and wasting power generation resources. Summary of the Invention

[0003] The purpose of the present invention is to provide an oil sample collection device for a box transformer oil filling port, so as to solve the technical problems in the prior art of increasing operation and maintenance workload and wasting power generation resources.

[0004] In order to solve the above technical problems, the present invention provides an oil sample collection device for a transformer oil filling port, comprising an operating rod, a drive pump, a hose and a connecting valve;

[0005] The operating rod is hollow inside, and an oil extraction channel is provided inside the operating rod. The hose and the connecting valve are respectively connected to the two ends of the operating rod, and the hose and the connecting valve are respectively communicated with the oil extraction channel. The driving pump is provided on the operating rod, and the driving pump is communicated with the oil extraction channel. The driving pump is used to pump the oil in the hose to the connecting valve, and the connecting valve is used to control the opening and closing of the oil extraction channel.

[0006] In an optional embodiment, a first oil pipe is provided in the operating rod, the oil extraction channel is provided in the first oil pipe, one end of the first oil pipe is connected to the hose, and the other end of the first oil pipe is connected to the drive pump.

[0007] In an optional embodiment, a first sleeve is sleeved on the first oil pipeline, and the first sleeve is respectively connected to the first oil pipeline and the operating rod.

[0008] In an optional embodiment, a second oil pipe is further provided in the operating rod, the oil extraction channel is provided in the second oil pipe, one end of the second oil pipe is connected to the drive pump, and the other end of the second oil pipe is connected to the connecting valve.

[0009] In an optional embodiment, a second sleeve is sleeved on the second oil pipeline, and the second sleeve is connected to the second oil pipeline and the operating rod respectively.

[0010] In an optional embodiment, the axes of the first oil pipeline and the second oil pipeline are arranged to coincide with each other.

[0011] In an optional embodiment, an insulating hand guard is provided on the operating rod, the insulating hand guard is fixedly connected to the surface of the operating rod, and the insulating hand guard is set to an insulating material.

[0012] In an optional embodiment, the insulating hand guard is provided at an end of the operating rod close to the connecting valve.

[0013] In an optional embodiment, a switch and a battery are provided on the operating rod, the switch is provided between the battery and the driving pump, the switch is connected to the battery and the driving pump respectively, and the switch is used to control the opening and closing of the driving pump.

[0014] In an optional embodiment, a needle tube is further included, which is detachably connected to an end of the connecting valve away from the operating rod, and the needle tube is used to extract oil flowing out after the connecting valve is opened.

[0015] The present invention provides an oil sample collection device for the oil filling port of a box transformer, comprising an operating rod, a driving pump, a hose and a connecting valve; the operating rod is hollow inside, and an oil extraction channel is provided inside the operating rod, the hose and the connecting valve are respectively connected to the two ends of the operating rod, the hose and the connecting valve are respectively communicated with the oil extraction channel, the driving pump is provided on the operating rod, the driving pump is communicated with the oil extraction channel, the driving pump is used to pump the oil in the hose to the connecting valve, and the connecting valve is used to control the opening and closing of the oil extraction channel. When extracting oil, there is no need to approach the transformer, and the operator can be kept away from high-voltage parts through the operating rod. The oil can be extracted from the oil extraction port through the hose, and the oil is extracted under the action of the driving pump, thereby solving the technical problems of increased operation and maintenance workload and waste of power generation resources in the prior art, and achieving the technical effects of not wasting power generation resources, avoiding electric shock, and reducing operation and maintenance workload. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of the oil sample collection device for the oil filling port of the box transformer mentioned in an embodiment of the present invention;

[0017] Figure 2 A top view of the oil sample collection device for the oil filling port of a transformer substation mentioned in an embodiment of the present invention;

[0018] Figure 3 for Figure 2 sectional view of .

[0019] In the figure, 1-operating lever; 2-driving pump; 3-hose; 4-connecting valve; 5-first oil pipeline; 6-second oil pipeline; 7-first casing; 8-second casing; 9-insulating hand guard; 10-switch; 11-battery. DETAILED DESCRIPTION

[0020] The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0021] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0022] In the related technology, the box transformer is not equipped with an oil drain valve at the oil intake port. The high-voltage side of the box transformer is too close to the 35kV high-voltage cable. There is not enough safe distance for manual oil sampling, and the safety distance from the live equipment does not meet the relevant requirements of the safety regulations. There is a risk of high-voltage electric shock. Therefore, the power generation equipment needs to be shut down when collecting oil samples from the box transformer, which increases the workload of operation and maintenance while also wasting power generation resources.

[0023] In view of this, if Figure 1-Figure 3 As shown, some embodiments of the present invention provide an oil sample collection device for a box-type transformer oil filling port, comprising an operating rod 1, a driving pump 2, a hose 3 and a connecting valve 4; the operating rod 1 is hollow inside, and an oil extraction channel is provided inside the operating rod 1, the hose 3 and the connecting valve 4 are respectively connected to the two ends of the operating rod 1, and the hose 3 and the connecting valve 4 are respectively communicated with the oil extraction channel, the driving pump 2 is provided on the operating rod 1, and the driving pump 2 is communicated with the oil extraction channel, and the driving pump 2 is used to pump the oil in the hose 3 to the connecting valve 4, and the connecting valve 4 is used to control the opening and closing of the oil extraction channel.

[0024] In the above embodiment, the operating rod 1, the hose 3 and the connecting valve 4 can all be made of insulating materials, such as polyethylene. The operating rod 1 can be in the shape of a long strip, and an oil extraction channel extending along the length direction is provided inside the operating rod 1. The cross-section of the oil extraction channel can be circular, and a hose 3 and a connecting valve 4 are respectively connected to the two ends of the operating rod 1. The hose 3 can also be made of silicone or rubber. After being inserted into the oil extraction port, the hose 3 can droop naturally due to its softness, so that the front end of the hose 3 contacts the oil, which is more convenient for sucking the oil. The driving pump 2 can be a peristaltic pump, so that the extracted oil is pollution-free, low shear force and the pipeline is easy to clean. A connecting valve 4 is provided at the oil outlet of the operating rod 1. The connecting valve 4 can be a ball valve, a butterfly valve or other valve. The connecting valve 4 is used to control whether the end face of the oil extraction channel is connected to the outside world.

[0025] During actual use, first insert the hose 3 through the oil extraction port and make the hose 3 contact the oil, then open the connecting valve 4, and then turn on the drive pump 2, so that the oil enters the oil extraction channel through the software, and then is discharged through the connecting valve 4, until the oil discharged from the connecting valve 4 is stable and uniform in color, without bubbles and impurities, then close the connecting valve 4, and use a collection tool to connect to the outlet of the connecting valve 4, open the connecting valve 4 again, and collect the oil discharged from the connecting valve 4 to obtain the box-changing oil sample.

[0026] Some embodiments of the present invention provide an oil sample collection device for the oil filling port of a box transformer, including an operating rod 1, a driving pump 2, a hose 3 and a connecting valve 4; the operating rod 1 is hollow inside, and an oil extraction channel is provided inside the operating rod 1, the hose 3 and the connecting valve 4 are respectively connected to the two ends of the operating rod 1, the hose 3 and the connecting valve 4 are respectively connected to the oil extraction channel, the driving pump 2 is provided on the operating rod 1, the driving pump 2 is connected to the oil extraction channel, the driving pump 2 is used to pump the oil in the hose 3 to the connecting valve 4, and the connecting valve 4 is used to control the opening and closing of the oil extraction channel, thereby solving the technical problems of increasing operation and maintenance workload and wasting power generation resources in the prior art, and achieving the technical effects of not wasting power generation resources, avoiding electric shock, and reducing operation and maintenance workload.

[0027] In an optional embodiment, a first oil pipeline 5 is provided in the operating rod 1 , an oil extraction channel is provided in the first oil pipeline 5 , one end of the first oil pipeline 5 is connected to the hose 3 , and the other end of the first oil pipeline 5 is connected to the drive pump 2 .

[0028] In the above embodiment, the first oil pipe 5 can be arranged at one end close to the hose 3, and the first oil pipe 5 extends along the axial direction of the operating rod 1. The first oil pipe 5 also uses an insulating material. The first oil pipe 5 can use a flexible material, such as silicone. The first oil pipe 5 can also use a hard material, such as ceramic or polyethylene insulating material. One end of the first oil pipe 5 can be connected to the hose 3 through a flange or adhesively bonded, and the other end can be connected to the inlet of the driving pump 2 through a flange. Through the first oil pipe 5, the oil in the hose 3 can flow smoothly toward the driving pump 2.

[0029] In an optional embodiment, a first sleeve 7 is sleeved on the first oil pipeline 5 , and the first sleeve 7 is connected to the first oil pipeline 5 and the operating rod 1 respectively.

[0030] In the above embodiment, the first sleeve 7 can be made of a hard insulating material, such as polyethylene or ceramic, or a flexible material, such as rubber or silicone. The first oil pipe 5 is inserted into the first sleeve 7, and the inner diameter of the first sleeve 7 can be equal to or slightly smaller than the outer diameter of the first oil pipe 5, so that the first oil pipe 5 and the first sleeve 7 are firmly connected. The first sleeve 7 is used to reinforce the first oil pipe 5. When the first oil pipe 5 is made of a hard material, the oil transportation efficiency of the first oil pipe 5 is higher, and the flexible first sleeve 7 can provide a buffer for the first oil pipe 5 to prevent the first oil pipe 5 from being bent and broken.

[0031] In an optional embodiment, a second oil pipe 6 is further provided in the operating lever 1 , an oil extraction channel is provided in the second oil pipe 6 , one end of the second oil pipe 6 is connected to the drive pump 2 , and the other end of the second oil pipe 6 is connected to the connecting valve 4 .

[0032] In the above embodiment, the second oil pipeline 6 and the first oil pipeline 5 are made of the same material, the axis of the second oil pipeline 6 is arranged to coincide with the axis of the first oil pipeline 5, the size of the second oil pipeline 6 is consistent with the size of the first oil pipeline 5, one end of the second oil pipeline 6 is connected to the output end of the driving pump 2, and the other end is connected to the input end of the connecting valve 4, so that the oil pumped out by the driving pump 2 can be transmitted to the connecting valve 4 through the second oil pipeline 6.

[0033] In an optional embodiment, a second sleeve 8 is sleeved on the second oil pipeline 6 , and the second sleeve 8 is connected to the second oil pipeline 6 and the operating rod 1 respectively.

[0034] In the above embodiment, the second sleeve 8 can be made of a hard insulating material, such as polyethylene or ceramic, or a flexible material, such as rubber or silicone. The second oil pipe 6 is inserted into the second sleeve 8, and the inner diameter of the second sleeve 8 can be equal to or slightly smaller than the outer diameter of the second oil pipe 6, so that the second oil pipe 6 and the second sleeve 8 are firmly connected. The second sleeve 8 is used to reinforce the second oil pipe 6. When the second oil pipe 6 is made of a hard material, the oil transportation efficiency of the second oil pipe 6 is higher, and the second sleeve 8 made of a flexible material can provide a buffer for the second oil pipe 6 to prevent the second oil pipe 6 from being bent and broken.

[0035] In an optional embodiment, an insulating hand guard 9 is provided on the operating rod 1 , and the insulating hand guard 9 is fixedly connected to the surface of the operating rod 1 , and the insulating hand guard 9 is set to an insulating material.

[0036] In the above embodiment, the insulating hand guard 9 can be made of an insulating material, such as rubber. The insulating hand guard 9 is in the shape of a sleeve. The insulating hand guard 9 is sleeved on the surface of the operating rod 1, so that the insulating hand guard 9 is tightened to the surface of the operating rod 1 through its own elasticity, thereby achieving a firm connection between the insulating hand guard 9 and the operating rod 1. At the same time, the insulating hand guard 9 can also be connected to the operating rod 1 by gluing.

[0037] Optionally, the insulating hand guard 9 may be provided with anti-slip grooves, which can increase the friction of the insulating hand guard 9, thereby further preventing the user from being struck by the current and facilitating a better grip for the user.

[0038] In an optional embodiment, an insulating hand guard 9 is provided at an end of the operating rod 1 close to the connecting valve 4 .

[0039] In the above embodiment, the insulating hand guard 9 is arranged on the side of the operating rod 1 away from the hose 3, and the length direction of the insulating hand guard 9 extends along the length direction of the operating rod 1. The insulating hand guard 9 can effectively prevent the user from directly grasping the operating rod 1, further improving the insulation performance while also making it more convenient for the user to grasp.

[0040] In an optional embodiment, a switch 10 and a battery 11 are provided on the operating rod 1. The switch 10 is provided between the battery 11 and the driving pump 2. The switch 10 is connected to the battery 11 and the driving pump 2 respectively. The switch 10 is used to control the opening and closing of the driving pump 2.

[0041] In the above embodiment, a switch 10 and a battery 11 are provided on the surface of the operating rod 1. The battery 11 can be fixed to the surface of the operating rod 1 by a snap, and the switch 10 can be provided on the surface of the operating rod 1 and close to the insulating hand guard 9, so as to facilitate the user to operate the switch 10. The switch 10 is used to control the connection and disconnection between the battery 11 and the drive pump 2, thereby starting and shutting down the drive pump 2.

[0042] In an optional embodiment, a needle tube is further included, which is detachably connected to the end of the connecting valve 4 facing away from the operating rod 1, and the needle tube is used to extract the oil flowing out after the connecting valve 4 is opened.

[0043] In the above embodiment, an oil inlet is provided at one end of the needle tube, and the needle tube is connected to the output end of the connecting valve 4. By opening the connecting valve 4, the oil flowing out of the connecting valve 4 enters the needle tube, preventing air from contaminating the oil.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An oil sampling device for a transformer oil filling port, characterized in that: Includes operating lever, drive pump, hose and connecting valve; The operating rod is hollow inside, and an oil extraction channel is provided inside the operating rod. The hose and the connecting valve are respectively connected to the two ends of the operating rod, and the hose and the connecting valve are respectively communicated with the oil extraction channel. The driving pump is provided on the operating rod, and the driving pump is communicated with the oil extraction channel. The driving pump is used to pump the oil in the hose to the connecting valve, and the connecting valve is used to control the opening and closing of the oil extraction channel.

2. The oil sampling device for the oil filling port of the transformer according to claim 1 is characterized in that: A first oil delivery pipe is provided in the operating rod, the oil extraction channel is provided in the first oil delivery pipe, one end of the first oil delivery pipe is connected to the hose, and the other end of the first oil delivery pipe is connected to the driving pump.

3. The oil sampling device for the oil filling port of the transformer according to claim 2, characterized in that: The first oil delivery pipe is sleeved with a first sleeve, and the first sleeve is connected to the first oil delivery pipe and the operating rod respectively.

4. The oil sampling device for the oil filling port of the transformer according to claim 2, characterized in that: A second oil pipeline is further provided in the operating rod, the oil extraction channel is provided in the second oil pipeline, one end of the second oil pipeline is connected to the driving pump, and the other end of the second oil pipeline is connected to the connecting valve.

5. The oil sampling device for the oil filling port of the transformer according to claim 4 is characterized in that: A second sleeve is sleeved on the second oil delivery pipe, and the second sleeve is connected to the second oil delivery pipe and the operating rod respectively.

6. The oil sampling device for the oil filling port of the transformer according to claim 4, characterized in that: The axes of the first oil pipeline and the second oil pipeline are arranged to coincide with each other.

7. The oil sampling device for the oil filling port of the transformer according to claim 1, characterized in that: An insulating hand guard is sleeved on the operating rod, the insulating hand guard is fixedly connected to the surface of the operating rod, and the insulating hand guard is set to an insulating material.

8. The oil sampling device for the oil filling port of the transformer according to claim 7, characterized in that: The insulating hand guard is arranged at one end of the operating rod close to the connecting valve.

9. The oil sampling device for the oil filling port of a transformer substation according to claim 1, characterized in that: The operating rod is provided with a switch and a battery. The switch is provided between the battery and the driving pump. The switch is connected to the battery and the driving pump respectively. The switch is used to control the opening and closing of the driving pump.

10. The oil sampling device for the oil filling port of a transformer substation according to any one of claims 1 to 9, characterized in that: It also includes a needle tube, which is detachably connected to one end of the connecting valve away from the operating rod, and is used to extract oil that flows out after the connecting valve is opened.

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