Device and method for removing plastic particles of glass injector for insulating oil detection

Abstract

The invention discloses a device and method for removing plastic particles of a glass injector for insulating oil detection, and relates to the technical field of insulating oil detection.The device comprises a flushing assembly, a plastic particle collecting assembly and an alarm device; the flushing assembly comprises an air storage tank, a pressure reducing valve, an injector inner flushing module, a flushing gas pulse valve and an injector fixing module; the plastic particle collecting assembly comprises a plastic particle recycling pipeline, the gas conveying pump and a plastic particle storage tank. The alarm device comprises a plastic particle storage tank inner capacity alarm module and the gas leakage sensing probe. According to the device for removing the plastic particles, the plastic particles in the glass injector fall off through a removal method, the traditional manual removal time is shortened, the injector is not prone to being damaged, the risk that detection personnel are cut is also avoided, and dangerous factors are reduced in the detection process.

Description

Technical Field

[0001] The present invention relates to the technical field of insulating oil detection, and particularly to a device and method for removing plastic particles from a glass syringe used for insulating oil detection; for the operation of removing plastic particles inside the glass syringe used for insulating oil detection. Background Art

[0002] Substation equipment refers to the equipment used in the power system for voltage transformation, receiving and distributing electric energy, controlling the power flow direction, and adjusting the voltage. These equipment mainly include transformer types, switch types, four small devices types, reactive device types of equipment, etc., and also include other auxiliary devices such as wave traps, insulators, high-voltage bushings, lead wires, grounding devices, secondary equipment, high-voltage DC equipment, etc. A transformer is a common electrical device that can be used to transform a certain value of alternating voltage into another value of alternating voltage with the same frequency, or can also change the value of alternating current and transform impedance or change the phase or transform the frequency.

[0003] The main functions of insulating oil in a transformer include insulation, cooling, and arc extinction. The insulating oil can fill the voids inside the transformer, exclude air, prevent moisture and humidity from entering, thereby enhancing the insulation performance of the transformer. The insulation strength of the insulating oil is greater than that of air, which can effectively protect the solid insulation materials inside the transformer and prevent the generation and spread of electric arcs. During the operation of the transformer, a large amount of heat is generated, and the insulating oil transfers the heat to the heat dissipation device through circulation, thereby keeping the temperature of the transformer within a safe range. The specific heat of the insulating oil is relatively large, which can effectively absorb and transfer heat to ensure the normal operation of the transformer. The insulating oil will decompose to generate a large amount of gas at high temperatures, forming a relatively high pressure, which helps to quickly extinguish the electric arc and ensure the reliable operation of the equipment.

[0004] The main purpose of detecting the gas content in insulating oil is to ensure the quality of equipment production, installation, and overhaul. During the production, installation, and overhaul of industrial equipment, the control of the gas content in insulating oil is crucial. For example, during the vacuum oil filtering process, before injecting the insulating oil into the equipment, and during the hot oil circulation process, it is necessary to strictly control the gas content in the insulating oil to ensure the normal operation of the equipment and extend its service life. Excessive gas content in insulating oil will significantly reduce the insulation performance and increase the risk of faults. Therefore, it is necessary to regularly test the gas content in the insulating oil inside the electrical equipment, timely detect abnormalities, reduce losses, and ensure the stable operation of the equipment.

[0005] During the detection process of insulating oil, a 100-ml glass syringe is a commonly used sampling tool for insulating oil chromatography and gas content detection. However, there are many tiny plastic particles inside a new glass syringe before use, leaving a buffer space between the inner core and the outer wall of the syringe to prevent damage during syringe transportation. If these plastic particles are not removed, they will contaminate the insulating oil sample. Moreover, since the insulating oil needs to be sampled quantitatively, the plastic particles will occupy space, resulting in the actual oil sample volume being smaller than the detected volume, affecting the accuracy of the detection results. Currently, for the plastic particles inside the syringe, the manual removal method is time-consuming and laborious, and it is extremely easy to cause damage to the syringe and cut the testers, bringing risk factors to the detection process.

[0006] In the prior art, the Chinese authorized patent publication number: CN 107782583 B, discloses a portable automatic sampling box for transformer insulating oil with cleaning and drying functions, which solves the problems of poor cleaning quality of the syringe and untimely collection of the discarded oil stain. It includes an air compressor (24), a cleaning liquid compressor (25) and a dryer (26) respectively arranged on the rear side wall inside the closed box body (1), and a syringe slider bracket (8), a core rod slider bracket (9), a rubber cap slide rod bracket (10), a four-way valve slider bracket (11), a syringe cleaning slider bracket (12) and a core rod cleaning slider bracket (13) are respectively movably arranged on the "day"-shaped guide rail (7); the cleaning, drying and sampling of the sampling needle for transformer oil are carried out in a closed box, and through semi-automatic operation, the cleaning quality of the syringe is improved. The structural design of the syringe support avoids the entry of air during the sampling process. The present invention integrates cleaning, drying and sampling, is easy to carry, is simple to use on-site, has high sampling quality, and protects the environmental cleanliness. Summary of the Invention

[0007] The technical problem to be solved by the present invention is aimed at the deficiencies of the prior art, and discloses a device and method for removing plastic particles from a glass syringe for insulating oil detection, which solves the problem of removing plastic particles inside the glass syringe used for insulating oil detection.

[0008] To achieve the above objectives, the present invention is realized through the following technical solutions: A device and method for removing plastic particles from a glass syringe for insulating oil detection, including: an upper cover is provided at the upper end of the device body, and a gas leakage induction probe is provided at the upper end of the inner wall of the device body;

[0009] The plastic particle flushing work of 3 glass syringes can be accommodated simultaneously inside the device body at one time;

[0010] The three glass syringes include: a first glass syringe, a second glass syringe, and a third glass syringe. The three glass syringes are of the same size and structure. The three glass syringes are respectively fixedly installed inside the device body by the syringe fixing module.

[0011] Inside the device body, there are: a flushing component, a plastic particle collection component, and an alarm device.

[0012] The flushing component includes an air storage tank, a pressure reducing valve, an in-syringe flushing module, a flushing gas pulse valve, and a syringe fixing module. The pressure reducing valve is fixedly installed at the upper end of the air storage tank. The outlet of the pressure reducing valve is fixedly connected to one end of the first delivery pipeline. The other end of the first delivery pipeline is connected to the lower end of a three-way valve. The upper end of the three-way valve is fixedly connected to the second delivery pipeline for gas delivery. The middle end of the three-way valve is fixedly connected to the ninth delivery pipeline. The ninth delivery pipeline delivers gas to the lower parts of the three glass syringes respectively through sequential fixed connections with the first valve and the left end of a five-way valve.

[0013] The upper part of the first glass syringe is fixedly connected to the left end of a four-way valve through a third gas delivery pipeline. The lower part of the first glass syringe is sequentially connected to an eighth gas delivery pipeline, a five-way valve, a gas delivery pump, and a plastic particle storage tank.

[0014] The upper part of the second glass syringe is fixedly connected to the lower end of the four-way valve through a fourth gas delivery pipeline. The lower part of the second glass syringe is sequentially connected to a seventh gas delivery pipeline, a five-way valve, a gas delivery pump, and a plastic particle storage tank.

[0015] The upper part of the third glass syringe is fixedly connected to the right end of the four-way valve through a fifth gas delivery pipeline. The lower part of the third glass syringe is sequentially connected to a sixth gas delivery pipeline, a five-way valve, a gas delivery pump, and a plastic particle storage tank.

[0016] The plastic particle collection component includes a plastic particle recovery pipeline, the gas delivery pump, and a plastic particle storage tank.

[0017] The alarm device includes a capacity alarm module in the plastic particle storage tank and the gas leakage induction probe.

[0018] Furthermore:

[0019] The volume of the air storage tank is 15L. The first gas delivery pipeline, the second gas delivery pipeline, the third gas delivery pipeline, the fourth gas delivery pipeline, the fifth gas delivery pipeline, the sixth gas delivery pipeline, the seventh gas delivery pipeline, the eighth gas delivery pipeline, and the ninth gas delivery pipeline are all made of stainless steel.

[0020] The volume of the plastic particle storage tank is 1.5 L;

[0021] The inner diameter of the gas delivery pump is 1.5 cm and it is made of stainless steel.

[0022] A method for removing plastic particles in a glass syringe for insulating oil detection

[0023] Step (1): After taking out the inner core of the glass syringe used for insulating oil detection, place the glass syringe into the plastic particle removal device and fix it.

[0024] Step (2): Open the valve of the air storage tank, adjust the pressure through the pressure reducing valve. After the adjustment is completed, send the gas in the air storage tank to the three-way valve through the first gas delivery pipeline. The three-way valve divides the gas into two paths.

[0025] Step (3): The gas is divided into two paths. One path enters the upper oil extraction nozzle of the glass syringe, and the other path enters the bottom of the syringe.

[0026] Step (4): Flushing operation. Set the flushing gas pulse valves at the lower parts of the 3 glass syringes accommodated in the plastic particle removal device to emit pulse gas. The pulse gas is turned on for 1 second every 0.5 seconds and continuously emits 10 times of the pulse gas to flush the plastic particles in the glass syringe.

[0027] Step (5): After the flushing is completed, close the eighth gas delivery pipeline, the seventh gas delivery pipeline and the sixth gas delivery pipeline at the lower parts of the first glass syringe, the second glass syringe and the third glass syringe respectively, and open the plastic particle storage tank; the flushed plastic particles are transported to the plastic particle storage tank through the gas delivery pump.

[0028] Step (6): After all the plastic particles in the 3 glass syringes accommodated in the plastic particle removal device (1) are removed, replace the next batch of syringes and cycle the above steps (1) to (5).

[0029] Step (7): If there is gas leakage, the gas leakage induction probe will send out an alarm signal and the outlet valve of the air storage tank will be closed.

[0030] Furthermore:

[0031] In the above step (1), the pressure in the air storage tank is 5 MPa, the pressure reducing valve adjusts the output pressure to 0.15 MPa, and the gas flow rate of the first gas delivery pipeline is 200 - 250 mL / min.

[0032] Furthermore:

[0033] In step (2), the gas flow rate of one path of gas entering the upper parts of the 3 glass syringes is 150 mL / min, and the gas flow rate of the other path entering the bottoms of the syringes is 100 mL / min.

[0034] Furthermore:

[0035] In step (4), the internal pressures of the second gas delivery pipeline, the third gas delivery pipeline, the fourth gas delivery pipeline, the fifth gas delivery pipeline, the sixth gas delivery pipeline, the seventh gas delivery pipeline, the eighth gas delivery pipeline and the ninth gas delivery pipeline are all 0.15 MPa, and the gas flow rates are all 200 - 250 mL / min.

[0036] Furthermore:

[0037] In step (4), the intake gas flow rate at the lower parts of the 3 glass syringes is 50 mL / min less than the intake gas flow rate at the oil extraction nozzles at the upper parts of the 3 glass syringes, so that the agitated plastic particles settle to the lower parts of the syringes.

[0038] Furthermore:

[0039] In step (7), when the plastic particle storage tank reaches 95% of its usable volume, the capacity alarm module gives an alarm.

[0040] Compared with the prior art, the present invention has the following beneficial effects:

[0041] A method and device for removing plastic particles in a glass syringe for insulating oil detection according to the present invention, through a flushing component, a plastic particle collection component and an alarm device; it solves the problem of manually removing plastic particles inside the glass syringe, shortens the time for removing plastic particles in the glass syringe, is not likely to cause damage to the syringe, and also avoids cuts to the detection personnel, reducing the risk factors brought by the detection process. Description of the Drawings

[0042] Figure 1 It is a schematic structural diagram of the device for removing plastic particles in a glass syringe according to the present invention;

[0043] Figure 2 It is a schematic flowchart of the method for removing plastic particles in a glass syringe according to the present invention.

[0044] Explanation of the reference numerals:

[0045] 1 - Device body, 2 - Air storage tank, 3 - Pressure reducing valve, 4 - First gas delivery pipeline, 5 - Three-way valve, 6 - Second gas delivery pipeline, 7 - Four-way valve, 8 - Third gas delivery pipeline, 9 - Fourth gas delivery pipeline, 10 - Fifth gas delivery pipeline, 11 - Syringe oil extraction nozzle, 12 - Syringe internal flushing module, 13 - Syringe outer wall, 14 - Flushing gas pulse valve, 15 - Syringe fixing module, 16 - Sixth gas delivery pipeline, 17 - Seventh gas delivery pipeline, 18 - Eighth gas delivery pipeline, 19 - Five-way valve, 20 - Ninth gas delivery pipeline, 21 - Plastic particle recovery pipeline, 22 - Gas delivery pump, 23 - Plastic particle storage tank capacity alarm module, 24 - Plastic particle storage tank, 25 - Upper end cover, 26 - Gas leakage induction probe, 27 - First valve. Detailed implementation manner

[0046] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0047] Embodiment 1:

[0048] As Figure 1 shown, it shows a schematic structural diagram of the device for removing plastic particles in a glass syringe of the present invention. An upper end cover 25 is provided at the upper end of the device body 1, and a gas leakage induction probe 26 is provided at the upper end of the inner wall of the device body 1;

[0049] The device body 1 can simultaneously accommodate the plastic particle flushing work of 3 glass syringes at one time;

[0050] The 3 glass syringes include: a first glass syringe, a second glass syringe, and a third glass syringe. The 3 glass syringes are of the same size and structure; the 3 glass syringes are respectively fixedly installed inside the device body 1 by the syringe fixing module 15;

[0051] The inside of the device body 1 includes: a flushing component, a plastic particle collection component, and an alarm device;

[0052] The flushing assembly includes an air storage tank 2, a pressure reducing valve 3, an in-syringe flushing module 12, a flushing gas pulse valve 14, and a syringe fixing module 15; the pressure reducing valve 3 is fixedly installed at the upper end of the air storage tank 2, the outlet of the pressure reducing valve 3 is fixedly connected to one end of a first delivery pipeline 4, the other end of the first delivery pipeline 4 is connected to the lower end of a three-way valve, the upper end of the three-way valve is fixedly connected to a second delivery pipeline 6 for gas delivery, the middle end of the three-way valve 5 is fixedly connected to a ninth delivery pipeline 20, and the ninth delivery pipeline 20 delivers gas to the lower parts of the 3 glass syringes respectively through fixed connections with a first valve 27 and the left end of a five-way valve 19 in sequence;

[0053] The upper part of the first glass syringe is fixedly connected to the left end of a four-way valve 7 through a third gas delivery pipeline 8, and the lower part of the first glass syringe is successively connected to an eighth gas delivery pipeline 18, a five-way valve 19, a gas delivery pump 22, and a plastic particle storage tank 24;

[0054] The upper part of the second glass syringe is fixedly connected to the lower end of the four-way valve 7 through a fourth gas delivery pipeline 9, and the lower part of the second glass syringe is successively connected to a seventh gas delivery pipeline 17, a five-way valve 19, a gas delivery pump 22, and a plastic particle storage tank 24;

[0055] The upper part of the third glass syringe is fixedly connected to the right end of the four-way valve 7 through a fifth gas delivery pipeline 10, and the lower part of the third glass syringe is successively connected to a sixth gas delivery pipeline 16, a five-way valve 19, a gas delivery pump 22, and a plastic particle storage tank 24;

[0056] The plastic particle collection assembly includes a plastic particle recovery pipeline 21, the gas delivery pump 22, and the plastic particle storage tank 24;

[0057] The alarm device includes a capacity alarm module 23 in the plastic particle storage tank and the gas leakage induction probe 26.

[0058] The volume of the air storage tank 2 is 15L, which can meet the gas consumption requirements for removing plastic particles from 1000 glass syringes;

[0059] The first gas delivery pipeline 4, the second gas delivery pipeline 6, the third gas delivery pipeline 8, the fourth gas delivery pipeline 9, the fifth gas delivery pipeline 10, the sixth gas delivery pipeline 16, the seventh gas delivery pipeline 17, the eighth gas delivery pipeline 18, and the ninth gas delivery pipeline 20 are all made of stainless steel;

[0060] Preferably, the stainless steel material is convenient for connection and fixation and has a long service life, which can meet the usage requirements for more than 5 years;

[0061] The volume of the plastic particle storage tank 24 is 1.5 L, which can meet the volume requirements for removing plastic particles from 3000 syringes.

[0062] The inner diameter of the gas delivery pump is 1.5 cm and it is made of stainless steel.

[0063] Example 2:

[0064] As Figure 2 shown, it shows a schematic flow diagram of the method for removing plastic particles from a glass syringe in the present invention.

[0065] Step (1): After removing the inner core of the glass syringe used for insulating oil detection, place the glass syringe into the plastic particle removal device 1 and fix it.

[0066] Step (2): Open the valve of the air storage tank 2, adjust the pressure through the pressure reducing valve 3. After the adjustment is completed, transport the gas in the air storage tank 2 to the three-way valve 5 through the first gas delivery pipeline 4, and the three-way valve 5 divides the gas into two paths.

[0067] Step (3): The gas is divided into two paths, one path enters the upper oil extraction nozzle 11 of the glass syringe, and the other path enters the bottom of the syringe.

[0068] Step (4): Flushing operation. Set the flushing gas pulse valve 14 at the lower part of the 3 glass syringes accommodated in the plastic particle removal device 1 to emit pulsed gas. The pulsed gas is turned on for 1 second every 0.5 seconds and continuously emits 10 times of the pulsed gas to flush the plastic particles in the glass syringe.

[0069] Step (5): After the flushing is completed, close the eighth gas delivery pipeline 18, the seventh gas delivery pipeline 17, and the sixth gas delivery pipeline 16 at the lower part of the first glass syringe, the second glass syringe, and the third glass syringe respectively, and open the plastic particle storage tank 24; the flushed plastic particles are transported to the plastic particle storage tank 24 through the gas delivery pump 22.

[0070] Step (6): After all the plastic particles in the 3 glass syringes accommodated in the plastic particle removal device 1 are removed, replace the next batch of syringes and repeat steps 1 to 5 above.

[0071] Step (7): If there is gas leakage, the gas leakage induction probe 26 will send an alarm signal and the outlet valve of the air storage tank 3 will be closed.

[0072] In the step (1), the pressure in the air storage tank 2 is 5 MPa, the pressure reducing valve 3 adjusts the output pressure to 0.15 MPa, and the gas flow rate of the first gas delivery pipeline 4 is 200 - 250 mL / min; when the pressure in the gas delivery pipeline is 0.15 MPa and the gas flow rate is 200 - 250 mL / min, the plastic particles in the syringe can be effectively agitated;

[0073] In the step (2), the gas flow rate of one path of gas entering the upper parts of the 3 glass syringes is 150 mL / min, and the gas flow rate of the other path entering the bottom of the syringe is 100 mL / min; the gas enters the glass syringe from two directions, up and down, which can not only effectively remove the plastic particles, but also prevent the plastic particles from getting stuck in the oil nozzle of the syringe and being difficult to remove; continuous gas intake is carried out at the upper oil nozzle of the syringe, and pulsed gas intake is adopted at the lower part of the glass syringe, and the pulsed gas intake at the lower part of the glass syringe is realized by the open and closed states of the flushing gas pulse valve; the pulsed gas intake frequency at the lower part of the glass syringe is 1.0 second of gas intake and 0.5 second of gas cut-off, which can effectively agitate the plastic particles.

[0074] In the step (4), the internal pressures of the second gas delivery pipeline 6, the third gas delivery pipeline 8, the fourth gas delivery pipeline 9, the fifth gas delivery pipeline 10, the sixth gas delivery pipeline 16, the seventh gas delivery pipeline 17, the eighth gas delivery pipeline 18 and the ninth gas delivery pipeline 20 are all 0.15 MPa, and the gas flow rates are all 200 - 250 mL / min.

[0075] In the step (4), the gas intake flow rate at the lower part of the 3 glass syringes is 50 mL / min less than the gas intake flow rate at the upper oil nozzles of the 3 glass syringes, so that the agitated plastic particles settle to the lower part of the syringe.

[0076] In the step (7), when the plastic particle storage tank 24 reaches 95% of the usable volume, the capacity alarm module 23 gives an alarm;

[0077] In specific practice, the upper end cover 25 can be opened to put the untreated syringe into the device, and the upper end cover cannot be opened during the operation of the device.

[0078] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for removing plastic particles from glass syringes for insulating oil testing. Features: It comprises a device body, wherein an upper end cover (25) is provided at the upper end of the device body (1), and a gas leakage sensing probe (26) is provided at the upper end of the inner wall of the device for removing plastic particles in a syringe (1); The device for removing plastic particles from syringes (1) can accommodate three glass syringes at one time; the three glass syringes include a first glass syringe, a second glass syringe and a third glass syringe, and the three glass syringes are of the same size and structure; The device body (1) comprises: a flushing component, a plastic particle collection component and an alarm device; The flushing assembly comprises an air storage tank (2), a pressure reducing valve (3), a syringe internal flushing module (12), a flushing gas pulse valve (14) and a syringe fixing module (15); The pressure reducing valve (3) is fixedly mounted on the upper end of the air storage tank (2); the outlet of the pressure reducing valve (3) is fixedly connected to one end of the first delivery pipeline (4); the other end of the first delivery pipeline (4) is connected to the lower end of the three-way valve (5); the upper end of the three-way valve (5) is fixedly connected to the second delivery pipeline (6) for gas delivery; the middle end of the three-way valve (5) is fixedly connected to the ninth delivery pipeline (20); the ninth delivery pipeline (20) is fixedly connected to the first valve (27) and the left end of the five-way valve (19) in this way to deliver the gas to the lower parts of the three glass syringes; the three glass syringes are fixedly mounted inside the device body (1) by the syringe fixing module (15); The plastic particle collection assembly comprises a plastic particle recovery pipeline (21), the gas delivery pump (22) and a plastic particle storage tank (24); The alarm device comprises a plastic particle storage tank content alarm module (23) and the gas leakage sensing probe (26).

2. A device for removing plastic particles from a glass syringe for insulating oil testing according to claim 1, Features: The upper portion of the first glass syringe is fixedly connected to the left end of the four-way valve (7) via a third gas delivery pipeline (8), and the lower portion of the first glass syringe is sequentially connected to an eighth gas delivery pipeline (18), a five-way valve (19), a gas delivery pump (22) and a plastic particle storage tank (24); The upper portion of the second glass syringe is fixedly connected to the lower end of the four-way valve (7) via a fourth gas delivery pipeline (9), and the lower portion of the second glass syringe is sequentially connected to a seventh gas delivery pipeline (17), a five-way valve (19), a gas delivery pump (22) and a plastic particle storage tank (24); The upper portion of the third glass syringe is fixedly connected to the right end of the four-way valve (7) via a fifth gas delivery pipeline (10), and the lower portion of the third glass syringe is sequentially connected to a sixth gas delivery pipeline (16), a five-way valve (19), a gas delivery pump (22) and a plastic particle storage tank (24).

3. A device for removing plastic particles from a glass syringe for insulating oil testing according to claim 1, Features: The air storage tank (2) has a capacity of 15L; The first gas delivery pipeline (4), the second gas delivery pipeline (6), the third gas delivery pipeline (8), the fourth gas delivery pipeline (9), the fifth gas delivery pipeline (10), the sixth gas delivery pipeline (16), the seventh gas delivery pipeline (17), the eighth gas delivery pipeline (18) and the ninth gas delivery pipeline (20) are all made of stainless steel; The volume of the plastic particle storage tank (24) is 1.5 L; The gas delivery pump has an inner diameter of 1.5 cm and is made of stainless steel.

4. A method for removing plastic particles from a glass syringe used for insulating oil testing. Features: Using the device for removing plastic particles from a glass syringe for insulating oil detection as described in any one of claims 1 to 3, Follow these steps: Step (1), taking out the inner core of a glass syringe used for insulating oil detection and then placing it into the device body (1) and fixing it; Step (2), opening the valve of the air storage tank (2), adjusting the pressure through the pressure reducing valve (3), and after the adjustment, transporting the gas in the air storage tank (2) to the three-way valve (5) through the first gas transport pipeline (4), and the three-way valve (5) divides the gas into two paths; Step (3), the gas is divided into two paths, one path enters the oil extraction nozzle (11) at the top of the glass syringe, and the other path enters the bottom of the syringe; Step (4), flushing operation, setting the flushing gas pulse valve (14) at the bottom of the three glass syringes contained in the device body (1) to emit pulse gas, the pulse gas is turned on for 1 second every 0.5 seconds, and the pulse gas is emitted 10 times continuously to flush the plastic particles in the glass syringes; Step (5), after flushing is completed, the eighth gas delivery pipeline (18), the seventh gas delivery pipeline (17) and the sixth gas delivery pipeline (16) at the bottom of the first glass syringe, the second glass syringe and the third glass syringe are closed respectively, and the plastic particle storage tank (24) is opened; the flushed plastic particles are transported to the plastic particle storage tank (24) through the gas delivery pump (22); Step (6), after all the plastic particles in the three glass syringes contained in the device body (1) are removed, replace the next batch of syringes and repeat the above steps (1) to (5); Step (7), if there is gas leakage, the gas leakage sensor probe (26) will send out an alarm signal, and the outlet valve of the air storage tank (3) will be closed.

5. A method for removing plastic particles from a glass syringe for insulating oil testing according to claim 4, Features: In the step (1), the pressure in the air storage tank (2) is 5 MPa, the pressure reducing valve (3) adjusts the output pressure to 0.15 MPa, and the gas flow rate of the first gas delivery pipeline (4) is 200-250 mL / min.

6. A method for removing plastic particles from a glass syringe for insulating oil testing according to claim 4, Features: In the step (2), the gas flow rate of one path of gas entering the upper part of the three glass syringes is 150 mL / min, and the gas flow rate of the other path of gas entering the bottom of the syringe is 100 mL / min.

7. A method for removing plastic particles from a glass syringe for insulating oil testing according to claim 4, Features: In the step (4), the internal pressures of the second gas delivery pipeline (6), the third gas delivery pipeline (8), the fourth gas delivery pipeline (9), the fifth gas delivery pipeline (10), the sixth gas delivery pipeline (16), the seventh gas delivery pipeline (17), the eighth gas delivery pipeline (18) and the ninth gas delivery pipeline (20) are all 0.15 MPa, and the gas flow rates are all 200-250 mL / min.

8. A method for removing plastic particles from a glass syringe for insulating oil testing according to claim 4, Features: In the step (4), the air intake flow rate at the bottom of the three glass syringes is 50 mL / min less than the air intake flow rate at the top of the three glass syringes, so that the stirred plastic particles settle to the bottom of the syringe.

9. A method for removing plastic particles from a glass syringe for insulating oil testing according to claim 3, Features: In the step (7), when the plastic particle storage tank (24) reaches 95% of its usage volume, the capacity alarm module (23) sounds an alarm.

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