Device and method for automatically collecting and storing waste oil in insulating oil detection laboratory

Abstract

The invention discloses an insulating oil detection laboratory waste oil automatic collection and storage device and method, and relates to the technical field of electrical equipment state maintenance, the device comprises a waste oil storage assembly, a waste oil collection assembly, a cleaning assembly and an alarm device; the waste oil collecting assembly automatically collects waste oil generated by insulation, the waste oil is conveyed to the waste oil storage assembly through a pipeline, and then the pipeline is cleaned through the cleaning assembly. The operation method comprises the following steps: after waste oil is generated, a detector opens the upper end cover of the waste oil collector by controlling the pedal and pours the waste oil into the collecting funnel; waste oil is conveyed into the waste oil storage tank through the waste oil collecting and conveying pipeline and then stored at constant temperature and constant pressure, the waste oil collecting funnel is cleaned through the cleaning agent conveying pipeline and the spraying device after the waste oil is collected, and automatic waste oil collection is completed. The waste oil generated in the extra-high voltage converter station insulating oil detection laboratory is automatically collected and stored, the workload of detection personnel is reduced, and meanwhile the problem that the waste oil in the laboratory cannot be stored is solved.

Description

Technical Field

[0001] The invention relates to the technical field of electrical equipment condition maintenance, and in particular to an automatic waste oil collection and storage device and method for an insulating oil testing laboratory, which are used for the automatic collection of waste oil in an insulating oil testing laboratory. Background Art

[0002] The UHV DC transmission project is the UHV transmission project with the highest voltage level, largest transmission capacity, longest transmission distance and most advanced technology. It will promote the bundling and external transmission of thermal power, wind power and solar power generation from energy bases, effectively promote regional economic development, and at the same time ensure energy security in the eastern region, alleviate the contradiction between energy supply and demand, and is of great significance to the development needs of the local economy.

[0003] The converter station plays a pivotal role in connecting power grids of different voltage levels in the UHV DC transmission system. Its operational reliability is closely related to the stability and safety of the power system. The most common method of "physical examination" of oil-filled equipment is to sample and test the insulating oil. Early "lesions" of oil-filled equipment will cause the growth of gas in the oil; as the "illness" worsens, the gas will grow more and more until the gas acts, or even explosions and other accidents occur, directly damaging the life cycle of the transformer.

[0004] At present, UHV converter stations are equipped with insulating oil testing laboratories, which are responsible for sampling and testing the insulating oil in the station. The voltage levels of converter stations are usually ±800kV and ±1100kV. The oil-filled equipment running in the station includes converter transformers, standby transformers, step-down transformers, station transformers, high-voltage reactors, etc. There are thousands or even tens of thousands of tons of insulating oil in various oil-filled equipment. Whether the insulating oil can be sampled and tested in a timely and accurate manner is extremely important.

[0005] According to DLT722-2016 "Guidelines for Analysis and Judgment of Dissolved Gases in Transformer Oil" and other relevant standards, the higher the voltage level, the shorter the sampling and testing cycle of the insulating oil, and the more comprehensive the test items required. The tested insulating oil is waste and cannot be refilled into the equipment. In addition, the volume of each converter station test laboratory is relatively small. The related substances produced by the faulty insulating oil are harmful to the human body. Therefore, the insulating oil cannot be stored in the laboratory. It can only be temporarily stored in a place and collected and processed by relevant units after a certain amount. During the experiment, the testers all wore gloves to operate the instruments and equipment. The waste oil generated during the test process needed to be removed and poured into a temporary oil storage barrel, which was time-consuming and labor-intensive, and the physical and mental health of the testers could not be effectively guaranteed.

[0006] In the prior art, China's authorized patent announcement number: CN 207600792 U discloses a fully sealed sampling device for equipment insulating oil, including a box body, a sampling module and a storage module arranged in the box body, the sampling module includes an equipment connection interface, a sampling connection interface, a three-way valve, a waste oil bottle, and a sampling device connected by a pipeline, the equipment connection interface is connected to the inlet of the three-way valve, the sampling connection interface is connected to the first outlet of the three-way valve, and the waste oil bottle is connected to the second outlet of the three-way valve. During the sampling operation, the sampling connection interface is movably connected to the sampling device; the storage module is used to store the sampling device and the pipeline. The utility model device has a simple structure, is convenient for high-altitude insulating oil sampling operations, and can collect waste oil in the collection process to reduce pollution. Summary of the invention

[0007] The technical problem to be solved by the present invention is to address the deficiencies in the prior art and disclose an automatic collection and storage device and method for waste oil in an insulating oil testing laboratory, which solves the problem of waste oil collection and storage in an insulating oil testing laboratory.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automatic waste oil collection and storage device and method for an insulating oil testing laboratory, comprising: a waste oil storage component, a waste oil collection component, a cleaning component, and an alarm device;

[0009] The waste oil storage assembly includes a waste oil storage tank, a first waste oil delivery pipeline, a second waste oil delivery pipeline, a third waste oil delivery pipeline, a fourth waste oil delivery pipeline, a third valve, a waste oil storage tank constant pressure device and a waste oil collection funnel;

[0010] The waste oil storage device comprises a waste oil storage tank, the upper end of which is fixedly connected to the waste oil storage tank constant pressure device, and the upper end of which is fixedly connected to the waste oil collection funnel via a third valve;

[0011] The waste oil collection assembly comprises a waste oil collector, a waste liquid collection pipeline and a mobile roller of the waste oil automatic collector;

[0012] The waste oil collection assembly also includes the waste liquid collection upper end cover which is controlled to open and close by the waste oil collector upper end cover control pedal;

[0013] The waste oil collector moving roller is installed at the bottom end of the waste oil collector;

[0014] The cleaning assembly includes a cleaning agent spraying device, a cleaning agent storage tank, a cleaning agent storage tank constant pressure device, a first cleaning agent delivery pipeline, a second cleaning agent delivery pipeline, a waste cleaning agent delivery pipeline and a waste cleaning agent storage tank;

[0015] The upper end of the cleaning agent storage tank is fixedly connected to the cleaning agent storage tank constant pressure device, the upper end of the cleaning agent storage tank constant pressure device is fixedly connected to the fourth valve, the upper end of the fourth valve is fixedly connected to the first cleaning agent delivery pipeline, the first cleaning agent delivery pipeline is fixedly connected to the cleaning agent delivery pipeline crosser, the cleaning agent delivery pipeline crosser is fixedly installed on the outside of the waste oil collection funnel, and the lower end of the waste oil collection funnel is fixedly connected to the waste cleaning agent storage tank through the first valve, the waste liquid collection pipeline, the upper end of the three-way valve and the fifth valve;

[0016] The waste oil storage component is connected to the waste oil collection component through a second waste oil delivery pipeline crosser, a third waste oil delivery pipeline crosser and a second valve.

[0017] Further:

[0018] The alarm device is a liquid level alarm device of the waste oil collector, which is installed on the upper end of the inner wall of the waste oil collector.

[0019] Further:

[0020] The cleaning agent delivery pipeline crosser is a device for conveying cleaning agent through the pipeline; the second waste oil delivery pipeline crosser and the third waste oil delivery pipeline crosser are devices for conveying waste oil through the pipeline, so that other impurities cannot pass through.

[0021] Further:

[0022] The cleaning agent spraying device is a spherical porous spraying device;

[0023] The cleaning agent storage tank has a capacity of 10L and adopts a cylindrical structure;

[0024] The waste cleaning agent storage tank has a capacity of 5L and adopts a cylindrical structure.

[0025] The number of movable rollers of the waste oil collector is 4;

[0026] The waste oil collection funnel is made of glass;

[0027] The waste oil automatic collector, the waste oil storage, the third waste oil conveying pipeline and the fourth waste oil conveying pipeline are all made of stainless steel;

[0028] The waste liquid collection pipeline, the first waste oil delivery pipeline and the second waste oil delivery pipeline are made of plastic;

[0029] The first valve, the second valve, the third valve, the fourth valve, the fifth valve and the three-way valve are all made of materials resistant to insulating oil corrosion.

[0030] Further:

[0031] The method for automatically collecting and storing waste oil comprises the following steps: (1) after the waste oil is detected in the insulating oil testing laboratory of the UHV converter station, a staff member controls a control pedal of an upper end cover of the waste oil collector, and the upper end cover of the waste oil collector is automatically opened, and the staff member pours the waste oil into a collection funnel on the upper part of the waste oil collector;

[0032] Step (2): the waste oil enters the collecting funnel on the upper part of the waste oil collector, and the waste oil passes through the wall of the insulating oil testing laboratory of the UHV converter station along the waste oil collection pipeline using the second waste oil transmission pipeline crosser and the third waste oil transmission pipeline crosser, and then enters the waste oil storage for constant temperature and pressure storage;

[0033] Step (3): After each waste oil collection, the waste oil collection funnel and the first waste oil delivery pipeline are cleaned using the cleaning agent in the cleaning agent storage tank through the first cleaning agent delivery pipeline, the second cleaning agent delivery pipeline and the cleaning agent spraying device;

[0034] Step (4): The waste oil storage is provided with a liquid level alarm device. If the liquid level alarm device lights up, the waste oil storage is full and needs to be replaced.

[0035] Further:

[0036] In the step (1), the upper end cover of the waste oil collector is interlocked with the control pedal of the upper end cover of the waste oil collector, that is, when the control pedal is stepped on, the upper end cover is opened, and when it is stepped on again, the upper end cover is closed; the height of the control pedal of the upper end cover of the waste oil collector is not fixed, and the height can be adjusted up and down according to the operating habits and needs of the staff.

[0037] Further:

[0038] In the step (2), the waste oil storage assembly is located outside the insulating oil testing laboratory of the UHV converter station, and the waste oil collection assembly is placed 20 cm underground outdoors.

[0039] Further:

[0040] In the step (3), the cleaning agent is pure petroleum ether; during cleaning, the cleaning agent is sprayed into the waste oil collection funnel using a 0.10 MPa to 0.15 MPa micro-positive pressure spray method.

[0041] Further:

[0042] In the step (4), when the liquid level of the waste oil storage tank exceeds the liquid level at the installation location of the liquid level alarm device, the upper end cover of the waste oil collector is prohibited from opening.

[0043] Compared with the prior art, the present invention has the following beneficial effects:

[0044] The technical problem to be solved by the invention is to provide an automatic collection and storage device and method for waste oil in an insulating oil testing laboratory, which automatically collects and stores the waste oil generated in the insulating oil testing laboratory of a UHV converter station, thereby reducing the workload of the staff and solving the problem that the waste oil in the laboratory cannot be stored, thereby providing reliable guarantee for the lean management of the UHV converter station. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 This is a schematic diagram of the structure of the waste oil collection device of the present invention;

[0046] Figure 2 It is a schematic flow chart of the waste oil collection steps of the present invention.

[0047] Description of reference numerals:

[0048] 1-UHV converter station insulating oil testing laboratory, 2-waste oil collector, 3-waste oil storage, 4-waste liquid collection pipeline, 5-first waste oil delivery pipeline, 6-second waste oil delivery pipeline, 7-third waste oil delivery pipeline, 8-fourth waste oil delivery pipeline, 9-first cleaning agent delivery pipeline, 10-second cleaning agent delivery pipeline, 11-waste cleaning agent delivery pipeline, 12-cleaning agent spraying device, 13-waste oil collector upper cover, 14-waste oil collector upper cover control pedal, 15-first valve, 16-second Valve, 17-third valve, 18-fourth valve, 19-fifth valve, 20-waste oil storage tank, 21-waste oil storage tank constant pressure device, 22-cleaning agent storage tank, 23-cleaning agent storage tank constant pressure device, 24-waste cleaning agent storage tank, 25-three-way valve, 26-waste oil collection funnel, 27-waste oil storage tank liquid level alarm device, 28-waste oil automatic collector moving roller, 29-cleaning agent delivery pipeline crossing device, 30-first waste oil delivery pipeline crossing device, 31-second waste oil delivery pipeline crossing device. DETAILED DESCRIPTION

[0049] 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 technicians in this field without creative work are within the scope of protection of the present invention.

[0050] like Figure 1 As shown, it shows a schematic diagram of the structure of the waste oil collection device of the present invention, including: a waste oil storage component, a waste oil collection component, a cleaning component, and an alarm device;

[0051] The waste oil storage assembly includes a waste oil storage tank 3, a first waste oil delivery pipeline 5, a second waste oil delivery pipeline 6, a third waste oil delivery pipeline 7, a fourth waste oil delivery pipeline 8, a third valve 17, a waste oil storage tank constant pressure device 21 and a waste oil collection funnel 26;

[0052] The waste oil storage device 3 comprises a waste oil storage tank 20, the upper end of the waste oil storage tank (20) is fixedly connected to the waste oil storage tank constant pressure device 21, and the upper end of the waste oil storage tank constant pressure device 21 is fixedly connected to the waste oil collection funnel 26 via a third valve 17;

[0053] The waste oil collection assembly comprises a waste oil collector 2, a waste liquid collection pipeline 4 and a moving roller 28 of the waste oil automatic collector;

[0054] The waste oil collection assembly also includes the waste liquid collection upper end cover 13 which is controlled to open and close by the waste oil collector upper end cover control pedal 14;

[0055] The waste oil collector moving roller 28 is installed at the bottom end of the waste oil collector 2;

[0056] The cleaning assembly includes a cleaning agent spraying device 12, a cleaning agent storage tank 22, a cleaning agent storage tank constant pressure device 23, a first cleaning agent delivery pipeline 9, a second cleaning agent delivery pipeline 10, a waste cleaning agent delivery pipeline 11 and a waste cleaning agent storage tank 24;

[0057] The upper end of the cleaning agent storage tank 22 is fixedly connected to the cleaning agent storage tank constant pressure device 23, the upper end of the cleaning agent storage tank constant pressure device 23 is fixedly connected to the fourth valve 18, the upper end of the fourth valve 18 is fixedly connected to the first cleaning agent delivery pipeline 9, the first cleaning agent delivery pipeline 9 is fixedly connected to the cleaning agent delivery pipeline crosser 29, the cleaning agent delivery pipeline crosser 29 is fixedly installed on the outside of the waste oil collection funnel 26, and the lower end of the waste oil collection funnel 26 is fixedly connected to the waste cleaning agent storage tank 24 through the first valve 15, the waste liquid collection pipeline 4, the upper end of the three-way valve 25 and the fifth valve 19;

[0058] The alarm device is a liquid level alarm device 27 of the waste oil collector 2, which is installed on the upper end of the inner wall of the waste oil collector 2;

[0059] The waste oil storage assembly is connected to the waste oil collection assembly via a second waste oil delivery pipeline crossover 30 , a third waste oil delivery pipeline crossover 31 and a second valve 16 .

[0060] Preferably, the cleaning agent delivery pipeline crosser 29 is a device for delivering cleaning agent through the pipeline; the second waste oil delivery pipeline crosser 30 and the third waste oil delivery pipeline crosser 31 are devices for delivering waste oil through the pipeline, so that other impurities cannot pass through; the insulating oil testing laboratory needs to be sealed and cannot be affected by the external environment such as temperature, humidity, and dust. The second waste oil delivery pipeline crosser 31 and the third waste oil delivery pipeline crosser are used to deliver oil to the waste oil storage component through the pipeline, so that other impurities cannot pass through. If the oil pipeline is directly transported through the wall, there will be a risk of loss and oil leakage in the long term;

[0061] The cleaning agent spraying device 12 is a spherical porous spraying device; the cleaning agent storage tank 22 has a capacity of 10L and adopts a cylindrical structure; the waste cleaning agent storage tank 24 has a capacity of 5L and adopts a cylindrical structure; the number of the waste oil collector moving rollers 28 is 4, which is convenient for the staff to move and place;

[0062] Preferably, the waste oil collection funnel 26 is made of glass. By utilizing the small friction coefficient of the glass surface, the waste oil generated during the insulating oil testing process can be more effectively collected.

[0063] The waste oil automatic collector 2, the waste oil storage 3 pipeline, the third waste oil delivery pipeline 7 and the fourth waste oil delivery pipeline 8 are all made of stainless steel;

[0064] The waste liquid collection pipeline 4, the first waste oil delivery pipeline 5, the second waste oil delivery pipeline 6, the third waste oil delivery pipeline and the fourth waste oil delivery pipeline are made of plastic material;

[0065] The first valve 15 , the second valve 16 , the third valve 17 , the fourth valve 18 , the fifth valve 19 and the three-way valve 25 are all made of materials resistant to insulating oil corrosion.

[0066] like Figure 2 As shown, it shows a schematic diagram of the waste oil collection process of the present invention; waste oil collection process:

[0067] Step (1): After the waste oil is detected in the UHV converter station insulating oil testing laboratory 1, the staff controls the waste oil collector upper cover control pedal 13, the waste oil collector upper cover 13 automatically opens, and the staff pours the waste oil into the collection funnel 26 on the upper part of the waste oil collector 2;

[0068] Step (2): the waste oil enters the collecting funnel 26 on the upper part of the waste oil collector 2, and the waste oil passes through the wall of the UHV converter station insulating oil testing laboratory 1 along the waste oil collecting pipeline 4 using the second waste oil conveying pipeline crosser 30 and the third waste oil conveying pipeline crosser 30, and then enters the waste oil storage 3 for constant temperature and pressure storage;

[0069] Step (3): After each waste oil collection, the waste oil collection funnel 26 and the first waste oil delivery pipeline 5 are cleaned by using the cleaning agent in the cleaning agent storage tank 22 through the first cleaning agent delivery pipeline 9, the second cleaning agent delivery pipeline 10 and the cleaning agent spraying device 12;

[0070] Step (4): The waste oil storage 3 is provided with a liquid level alarm device 27. If the liquid level alarm device 27 lights up, it means that the waste oil storage 2 is full and the waste oil storage 3 needs to be replaced.

[0071] Preferably, in step (1), the waste oil collector upper end cover 13 is interlocked with the waste oil collector upper end cover control pedal 14, that is, when the control pedal is stepped on, the upper end cover is opened, and when it is stepped on again, the upper end cover is closed; the height of the waste oil collector upper end cover control pedal 14 is not fixed, and the height can be adjusted up and down according to the operating habits and needs of the staff.

[0072] Preferably, in step (2), the waste oil storage assembly is located outside the insulating oil testing laboratory 1 of the UHV converter station, and the waste oil collection assembly is placed 20 cm underground outdoors.

[0073] Preferably, in step 3, the cleaning agent is pure petroleum ether; during cleaning, the cleaning agent is sprayed into the waste oil collection funnel 26 using a 0.10 MPa to 0.15 MPa micro-positive pressure spray method.

[0074] Preferably, in the step (4), when the liquid level of the waste oil storage tank 20 exceeds the liquid level at the installation location of the liquid level alarm device 27, the upper end cover 13 of the waste oil collector is prohibited from opening.

[0075] In the laboratory implementation, step (1): after the waste oil is detected in the UHV converter station insulating oil testing laboratory 1, the staff controls the waste oil collector upper cover control pedal 13, the waste oil collector upper cover 13 automatically opens, and the staff pours the waste oil into the collection funnel 26 at the upper part of the waste oil collector 2;

[0076] Step (2): the waste oil enters the collecting funnel 26 on the upper part of the waste oil collector 2, and the waste oil passes through the wall of the UHV converter station insulating oil testing laboratory 1 along the waste oil collection pipeline 4 using the second waste oil transmission pipeline crosser 30 and the third waste oil transmission pipeline crosser 31, and then enters the waste oil storage 3 for constant temperature and pressure storage;

[0077] Step (3): After each waste oil collection, the waste oil collection funnel 26 and the first waste oil delivery pipeline 5 are cleaned by using the cleaning agent in the cleaning agent storage tank 22 through the first cleaning agent delivery pipeline 9, the second cleaning agent delivery pipeline 10 and the cleaning agent spraying device 12;

[0078] Step (4): The waste oil storage tank 3 is provided with a liquid level alarm device 27. If the liquid level alarm device 27 lights up, the waste oil storage tank 3 is full and needs to be replaced.

[0079] In a specific implementation, after the staff has fixedly placed the waste oil collector, they control the control pedal of the upper end cover of the waste oil collector to open the upper end cover of the waste oil collector, and the waste oil collector automatically performs waste oil collection. At this time, the waste oil enters the collecting funnel 26 at the upper part of the waste oil collector, and the first valve 15 is opened. The waste oil passes through the wall of the insulating oil testing laboratory 1 of the UHV converter station along the waste oil collection pipeline 4 using the second waste oil delivery pipeline crosser 30 and the third waste oil delivery pipeline crosser 31, and then enters the waste oil storage 3 for constant temperature and pressure storage;

[0080] After each waste oil collection, the waste oil collection funnel 26 and the first waste oil delivery pipeline 5 are cleaned by using the cleaning agent in the cleaning agent storage tank 22 through the first cleaning agent delivery pipeline 9, the second cleaning agent delivery pipeline 10 and the cleaning agent spraying device 12;

[0081] The waste oil storage 3 is provided with a liquid level alarm device 27. If the liquid level alarm device 27 lights up, the waste oil storage 2 is full and the waste oil storage 3 needs to be replaced.

[0082] When the waste oil collector control pedal is actuated twice and the upper end cover of the waste oil collector is in a closed state, the waste oil collection funnel and the waste oil collection pipeline are automatically cleaned. If it is necessary to stop cleaning, the control pedal is stepped on twice in quick succession.

[0083] The upper end cover of the waste oil collector is interlocked with the control pedal of the upper end cover of the waste oil collector. When the staff steps on the control pedal, the upper end cover opens, and when the staff steps on the control pedal again, the upper end cover closes; the upper end cover of the waste oil collector is usually in a closed state to prevent dust and other impurities from entering the insulating oil waste oil collection system, and is interlocked and opened only when the control pedal is actuated;

[0084] The waste oil storage 20 is located outside the laboratory, which can effectively prevent the toxic and harmful substances released during the waste oil collection and storage process from harming the health of the test personnel, and can also facilitate the transportation and disposal of the waste oil;

[0085] The outer wall of the insulating oil testing laboratory to the waste oil collection assembly and waste oil collection pipeline is located 20 cm underground, which can effectively prevent the influence of wind and sun on the pipeline and reduce the influence on the walking of people;

[0086] The pass-through device is used when the waste oil conveying pipeline passes through the laboratory wall, which can prevent damage to the laboratory wall and protect the pipeline from being damaged by the laboratory wall.

[0087] The cleaning agent uses pure petroleum ether, which can effectively clean impurities on the waste oil collector and the inner wall of the pipeline, and no bubbles are generated during the cleaning process;

[0088] After the waste oil is collected, only 15 mL to 20 mL of cleaning agent is consumed each time for cleaning, and the used cleaning agent is collected in the waste cleaning agent storage tank 24 through a pipeline.

[0089] The cleaning agent passes through the waste oil collecting funnel 26 by using the cleaning agent passer 29, which can prevent the cleaning liquid from leaking into the waste oil collector and prevent the cleaning agent pipeline from being deformed.

[0090] During the cleaning process of the waste oil collection funnel 26 and the waste oil collection pipeline 4, the lower port of the three-way valve 25 is closed to prevent the cleaning agent from entering the waste oil storage tank through the waste oil delivery pipeline 5.

[0091] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic collection and storage device for waste oil in insulating oil testing laboratories. Features: include: Waste oil storage components, waste oil collection components, cleaning components, alarm devices; The waste oil storage assembly comprises a waste oil storage container (3), a first waste oil delivery pipeline (5), a second waste oil delivery pipeline (6), a third waste oil delivery pipeline (7), a fourth waste oil delivery pipeline (8), a third valve (17), a waste oil storage tank constant pressure device (21) and a waste oil collection funnel (26); The waste oil storage device (3) comprises a waste oil storage tank (20), the upper end of the waste oil storage tank (20) is fixedly connected to the waste oil storage tank constant pressure device (21), and the upper end of the waste oil storage tank constant pressure device (21) is fixedly connected to the waste oil collection funnel (26) via a third valve (17); The waste oil collection assembly comprises a waste oil collector (2), a waste liquid collection pipeline (4) and a moving roller (28) of the waste oil automatic collector; The waste oil collection assembly further comprises the waste liquid collection upper end cover (13) whose opening and closing is controlled by the waste oil collector upper end cover control pedal (14); The waste oil collector moving roller (28) is installed at the bottom end of the waste oil collector (2); The cleaning component comprises a cleaning agent spraying device (12), a cleaning agent storage tank (22), a cleaning agent storage tank constant pressure device (23), a first cleaning agent delivery pipeline (9), a second cleaning agent delivery pipeline (10), a waste cleaning agent delivery pipeline (11) and a waste cleaning agent storage tank (24); The upper end of the cleaning agent storage tank (22) is fixedly connected to the cleaning agent storage tank constant pressure device (23), the upper end of the cleaning agent storage tank constant pressure device (23) is fixedly connected to the fourth valve (18), the upper end of the fourth valve (18) is fixedly connected to the first cleaning agent delivery pipeline (9), the first cleaning agent delivery pipeline (9) is fixedly connected to the cleaning agent delivery pipeline crossover (29), the cleaning agent delivery pipeline crossover (29) is fixedly installed on the outside of the waste oil collection funnel (26), and the lower end of the waste oil collection funnel (26) is fixedly connected to the waste cleaning agent storage tank (24) through the first valve (15), the waste liquid collection pipeline (4), the upper end of the three-way valve (25) and the fifth valve (19); The waste oil storage component is connected to the waste oil collection component via a second waste oil delivery pipeline crosser (30), a third waste oil delivery pipeline crosser (31) and a second valve (16).

2. The automatic waste oil collection and storage device for insulating oil testing laboratories according to claim 1, Features: The alarm device is a liquid level alarm device (27) of the waste oil collector (2), which is installed on the upper end of the inner wall of the waste oil collector (2).

3. The automatic waste oil collection and storage device for insulating oil testing laboratories according to claim 1, Features: include: The cleaning agent delivery pipeline crosser (29) is a device for delivering cleaning agent through a pipeline; the second waste oil delivery pipeline crosser (30) and the third waste oil delivery pipeline crosser (31) are devices for delivering waste oil through a pipeline.

4. The automatic waste oil collection and storage device for insulating oil testing laboratories according to claim 1, Features: The cleaning agent spraying device (12) is a spherical porous spraying device; The cleaning agent storage tank (22) has a capacity of 10 L and adopts a cylindrical structure; The waste cleaning agent storage tank (24) has a capacity of 5L and adopts a cylindrical structure. The number of the waste oil collector moving rollers (28) is 4; The waste oil collection funnel (26) is made of glass; The waste oil automatic collector (2), the waste oil storage (3), the third waste oil conveying pipeline (7) and the fourth waste oil conveying pipeline (8) are all made of stainless steel; The waste liquid collection pipeline (4), the first waste oil transportation pipeline (5) and the second waste oil transportation pipeline (6) are made of plastic material; The first valve (15), the second valve (16), the third valve (17), the fourth valve (18), the fifth valve (19) and the three-way valve (25) are all made of a material that is resistant to insulating oil corrosion.

5. A method for automatically collecting and storing waste oil in an insulating oil testing laboratory. Using the automatic waste oil collection and storage device for insulating oil testing laboratories as described in any one of claims 1 to 4, Perform the following steps: Step (1): After the waste oil is detected in the UHV converter station insulating oil testing laboratory (1), a staff member controls the waste oil collector upper end cover control pedal (13), and the waste oil collector upper end cover (13) automatically opens, and the staff member pours the waste oil into the collection funnel (26) at the upper part of the waste oil collector (2); Step (2): the waste oil enters the collecting funnel (26) at the upper part of the waste oil collector (2), and the waste oil passes through the wall of the UHV converter station insulating oil testing laboratory (1) along the waste oil collecting pipeline (4) using the second waste oil conveying pipeline crosser (30) and the third waste oil conveying pipeline crosser (31), and then enters the waste oil storage (3) for constant temperature and pressure storage; Step (3): after each waste oil collection, the waste oil collection funnel (26) and the first waste oil delivery pipeline (5) are cleaned using the cleaning agent in the cleaning agent storage tank (22) through the first cleaning agent delivery pipeline (9), the second cleaning agent delivery pipeline (10) and the cleaning agent spraying device (12); Step (4): The waste oil storage (3) is provided with a liquid level alarm device (27). If the liquid level alarm device (27) lights up, the waste oil storage (3) is full and needs to be replaced.

6. The method for automatically collecting and storing waste oil in an insulating oil testing laboratory according to claim 5, Features: In the step (1), the waste oil collector upper end cover (13) is interlocked with the waste oil collector upper end cover control pedal (14), that is, when the control pedal is stepped on, the upper end cover is opened, and when it is stepped on again, the upper end cover is closed; the height of the waste oil collector upper end cover control pedal (14) is not fixed, and the height can be adjusted up and down according to the operating habits and needs of the staff.

7. The method for automatically collecting and storing waste oil in an insulating oil testing laboratory according to claim 5, Features: In the step (2), the waste oil storage component is located outside the UHV converter station insulating oil testing laboratory (1), and the waste oil collection component is placed 20 cm underground outdoors.

8. The method for automatically collecting and storing waste oil in an insulating oil testing laboratory according to claim 5, Features: In the step (3), pure petroleum ether is used as the cleaning agent; during cleaning, the cleaning agent is sprayed into the waste oil collection funnel (26) using a 0.10 MPa to 0.15 MPa micro-positive pressure spray method.

9. The method for automatically collecting and storing waste oil in an insulating oil testing laboratory according to claim 5, Features: In the step (4), when the liquid level of the waste oil storage tank (20) exceeds the liquid level at the installation location of the liquid level alarm device (27), the upper end cover (13) of the waste oil collector is prohibited from opening.

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