Platform for testing charge release performance of antistatic agent

Abstract

The invention relates to the technical field of aviation fuel additive testing, and discloses an antistatic agent charge release performance testing platform which comprises a testing rack. The test bench comprises a test oil tank group and a pipeline system which are arranged in the same loop; the testing oil tank group comprises a stirring oil tank and a receiving oil tank; the pipeline system comprises a main pipeline, a first branch pipeline, a second branch pipeline and a third branch pipeline; the main pipeline, the first branch pipeline and the series test oil tank group form a test branch for testing original oil; the main pipeline, the first branch pipeline, the third branch pipeline and the series test oil tank group form an agent adding branch for testing agent adding oil; and the main pipeline, the first branch pipeline, the second branch pipeline and the series test oil tank group form an agent removal branch for testing the filtered agent-added oil. According to the invention, a reliable and standard-meeting test environment can be provided for the actual application effect test of the aviation fuel antistatic agent, the performance of the antistatic agent can be accurately determined, and the blending and adding effect of the aviation fuel can be optimized.

Description

Technical Field

[0001] The present invention relates to the technical field of aviation fuel additive testing, and in particular to a test platform for the charge release performance of an antistatic agent. Background Art

[0002] Throughout the production, storage, transportation, and use of aviation fuel, static charge is easily generated and accumulated due to contact, friction, and flow separation between the fuel and equipment such as pipelines, containers, and filters. When this charge accumulates to a certain level, it forms a high electrostatic potential, which in turn triggers electrostatic discharge. This discharge poses a significant safety hazard in the flammable and explosive environment of aviation fuel, potentially leading to fire or explosion. To mitigate this risk, international and national standards (such as GB6537-2018) specify that the electrical conductivity of aviation fuel (No. 3 jet fuel) at 20°C must be strictly controlled within the range of 50 to 600 pS / m. Antistatic agents are key additives that enhance fuel conductivity and accelerate charge release and dissipation. Their effectiveness is directly related to the compliance and safety of fuel applications.

[0003] Currently, the effectiveness of antistatic agents in aviation fuel is primarily evaluated based on conductivity measurements specified in industry standards such as GB6537-2018. This existing testing technique typically utilizes a laboratory conductivity meter. Under static or limited dynamic conditions (e.g., stirring followed by static measurement), different predetermined ratios of the antistatic agent are added to a No. 3 jet fuel sample. The conductivity is then measured under a strictly controlled environment (primarily at a constant temperature of 20°C). This serves as the primary metric for evaluating the antistatic agent's charge release performance. This method, which forms the foundation of the existing testing platform, offers the advantage of relatively standardized operation and the ability to initially compare the effectiveness of different additive ratios, for example, identifying the minimum effective addition level required to meet minimum conductivity requirements (≥50 pS / m).

[0004] However, in practical applications, currently used testing platforms have significant limitations. First, they lack the ability to simulate real-world operating conditions. Existing platforms struggle to effectively replicate the complex fluid dynamics, temperature fluctuations, and potential impurity influences experienced by fuel during dynamic processes such as high-speed pipeline transportation, filtration, and tank turnover. They also cannot effectively simulate and evaluate the impact of "static transfer" (the dynamic equilibrium process in which new charges are continuously generated and dissipated by the antistatic agent during actual fuel flow, such as pumping, filtration, and filling). This discrepancy between static or simplified dynamic testing and real-world application scenarios results in test results that lack authenticity and accuracy. Second, the testing dimension is limited. Despite recent advances in automated data acquisition (such as real-time conductivity monitoring), the overall platform still primarily relies on discrete, single-point experiments and lacks the ability to integrate multi-environmental parameter simulation and high-throughput testing. This inability to consider and implement testing under multi-dimensional influences makes it difficult to comprehensively evaluate the comprehensive charge release performance of antistatic agents under conditions similar to actual use.

[0005] Therefore, there is an urgent need for a new type of testing platform to solve the above problems. Summary of the Invention

[0006] The present invention aims to provide a test platform for the charge release performance of antistatic agents, which can provide a reliable and standard test environment for the actual application effect test of aviation kerosene antistatic agents, help to accurately measure the performance of antistatic agents and optimize the jet fuel blending and dosing effect.

[0007] The basic solution provided by the present invention is: an antistatic agent charge release performance test platform, comprising a test bench; the test bench comprises a test oil tank group and a pipeline system arranged in the same circuit; the test oil tank group comprises a stirring oil tank and a receiving oil tank; the pipeline system comprises a main pipeline, a first branch pipeline, a second branch pipeline and a third branch pipeline; The stirring oil tank is used to store the original oil and add antistatic agent to the oil to prepare the additive oil; the receiving oil tank is used to receive the oil output from the stirring oil tank and then transported through the oil system; The main pipeline includes a first centrifugal pump for conveying oil, an electrostatic generator, and an electrostatic tester arranged in sequence; the first branch pipeline includes a first valve group for controlling the on-off and flow of the oil pipeline; the second branch pipeline includes a filter, a filter separator, and a second valve group for controlling the on-off and flow of the oil pipeline; the third branch pipeline includes a second centrifugal pump for conveying oil and a third valve group for controlling the on-off and flow of the oil pipeline; The first branch pipeline and the second branch pipeline are connected in parallel and are arranged between the first centrifugal pump and the electrostatic generator of the main pipeline; the third branch pipeline is connected in series with the main pipeline; The main line and the first branch line are connected in series with the test oil tank group to form a test branch for testing the original oil; the main line and the first branch line and the third branch line are connected in series with the test oil tank group to form a dosing branch for testing the dosing oil; the main line and the second branch line and the third branch line are connected in series with the test oil tank group to form a de-dosing branch for testing the dosing oil after filtering.

[0008] The working principle and advantages of the present invention are: The antistatic agent charge release performance test platform of the present invention can accurately and systematically evaluate the impact of different antistatic agent addition ratios on the charge release performance of aviation kerosene, and can provide a reliable and standard-compliant testing environment for the actual application effect testing of aviation kerosene antistatic agents, which helps to accurately measure the performance of antistatic agents and optimize the effect of aviation kerosene blending and addition. The key points are: In specific testing, this testing platform utilizes a single main pipeline system, configured with three branch circuits (test, dosing, and de-dosing), controlled by a valve block. This allows for at least three different test conditions: raw oil testing, dosing oil testing, and de-dosing oil testing (filtered, dosing oil). The raw oil test assesses the basic properties of untreated jet fuel, quantifying its charge accumulation characteristics in its natural state and establishing a conductivity baseline, providing an objective reference for subsequent evaluation of the anti-static agent's effectiveness. The dosing oil test directly verifies the effectiveness of the anti-static agent. After adding anti-static agent to the mixing tank in appropriate proportions, the dosing branch simulates the fuel transfer process, monitoring charge release dynamics in real time to generate accurate and reliable test data. The de-dosing oil test simulates the loss of anti-static agent during filtration. Before refueling, aviation fuel passes through high-precision filters (such as membrane separators and adsorption tanks) to remove impurities, but anti-static agent molecules may be adsorbed or decomposed by the filter media. This test actively simulates this process through the filter and filter separator in the second branch pipeline, accurately evaluating the actual protective capabilities of the antistatic agent and providing data support for filtration process optimization (such as filter material selection) and antistatic agent replenishment strategies. Furthermore, this testing platform provides a complete and comprehensive closed-loop evaluation chain for aviation kerosene antistatic agent performance testing, dynamically simulating the entire aviation kerosene process and accurately testing the performance of aviation kerosene antistatic agents.

[0009] Furthermore, this testing platform overcomes the limitations of traditional single-path testing platforms, which require frequent changes to experimental equipment. It ensures that all three types of tests (base oil performance, additive effect, and post-filtration stability) are completed using identical core testing units (primary centrifugal pump, electrostatic generator, and electrostatic tester). Reusing core equipment not only reduces hardware costs but, more importantly, eliminates systematic errors caused by equipment differences, enabling direct comparability of charge release performance data for raw, additive-additive, and de-additive-depleted oils. Furthermore, the precise control capabilities of the valve group ensure rapid switching between testing processes, significantly shortening comparative experiment cycles and providing an efficient platform for systematically studying the effects of antistatic agent dosage and filtration process on charge release characteristics. Combined with a control system, this testing platform also enables automated test control, further ensuring the consistency of the testing process and the reliability of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A schematic diagram of the hydraulic principle of a test bench of an embodiment of a test platform for testing the charge release performance of an antistatic agent according to the present invention; Figure 2 This is a regional schematic diagram of the main pipeline and the first branch pipeline in the hydraulic principle schematic diagram of an embodiment of the antistatic agent charge release performance test platform of the present invention; Figure 3 This is a schematic diagram of the second branch pipeline and the third branch pipeline in the hydraulic principle schematic diagram of an embodiment of the antistatic agent charge release performance test platform of the present invention; Figure 4 This is a regional schematic diagram of a test branch in a hydraulic principle schematic diagram of an embodiment of a test platform for charge release performance of an antistatic agent of the present invention; Figure 5 This is a regional schematic diagram of the additive branch in the hydraulic principle schematic diagram of an embodiment of the antistatic agent charge release performance test platform of the present invention; Figure 6 This is a regional schematic diagram of the deagent branch in the hydraulic principle schematic diagram of an embodiment of the antistatic agent charge release performance test platform of the present invention.

[0011] The symbols in the drawings of the specification include: Mixing oil tank 1, magnetic flap level gauge 101, breathing valve 102, mixing motor 103, dosing port 104; Receiving oil tank 2, No. 1 static tester 201, liquid level transmitter 202, drain valve 3, explosion-proof solenoid valve 4; Main line manual valve 4, main line electric valve 5, main filter 6, first centrifugal pump 7, main pressure gauge 8, main check valve 9, main flowmeter 10, reducer 11, secondary flowmeter 12, electrostatic generator 13, sampling valve 14, No. 2 electrostatic tester 15; Filter 16, filter separator 17, insulating flange 18; secondary check valve 19, secondary pressure gauge 20, second centrifugal pump 21, secondary filter 22; Manual valve No. 1 23, electric-controlled valve No. 1 24, electric-controlled valve No. 2 25, electric-controlled valve No. 3 26, electric-controlled valve No. 4 27, electric-controlled valve No. 5 28, electric-controlled valve No. 6 29, electric-controlled valve No. 7 30, electric-controlled valve No. 8 31. DETAILED DESCRIPTION

[0012] The following is a further detailed description through specific implementation methods: The embodiment is basically as shown in the attached Figure 1 Shown: Antistatic agent charge release performance test platform, including test bench and control system.

[0013] The test bench includes a test chassis, a test oil tank group and a pipeline system arranged in the same circuit. The test oil tank group includes a stirring oil tank 1 and a receiving oil tank 2; the pipeline system includes a main pipeline, a first branch pipeline, a second branch pipeline and a third branch pipeline.

[0014] The mixing tank 1, piping system, and receiving tank 2 are all mounted on a test chassis; the test chassis is a skid-mounted structure; the piping system is connected and fixed to the skid-mounted structure via plastic pipe clamps; an insulating layer separates the mixing tank 1 and receiving tank 2 from the skid-mounted structure. The insulating layer comprises a stacked rubber layer and a polytetrafluoroethylene layer; in this embodiment, specifically a stacked layer of 30mm rubber sheet and a 30mm polytetrafluoroethylene sheet; the rubber sheet serves as primary isolation, utilizing its high volume resistivity to block the DC leakage current path between the chassis and the tank body; the polytetrafluoroethylene sheet serves as a secondary barrier, utilizing its ultra-low dielectric constant and surface oleophobicity to suppress capacitive coupling current caused by AC electric field coupling. The oil inlet and outlet of the receiving tank 2 are both equipped with standard insulating flanges; an insulating pad is provided at the bottom of the receiving tank 2 to stably cut off the conductive path.

[0015] Through the above-mentioned structural design, reliable insulation measures are provided between pipelines, between the stirring oil tank 1 and the recovery oil tank, and between the tank and the skid to ensure that the entire equipment will not be disturbed by the experimental equipment itself during testing. Furthermore, the static electricity generated by the electrostatic generator 13 will not be transmitted arbitrarily between pipelines, and the static electricity can be ensured to flow in one direction or along the medium, ensuring that the charge release data collected by the electrostatic tester truly reflects the electrical characteristics of the oil itself.

[0016] The mixing tank 1 is used to store the original oil and add antistatic agent to the oil to prepare the additive oil. The receiving tank 2 is used to receive the oil output from the mixing tank 1 and then transported through the oil system.

[0017] Specifically, the mixing oil tank 1 and the receiving oil tank 2 are both vertical cylindrical oil tanks with a volume of , and with a conical bottom. A drain valve 3 (consisting of a manual valve and an electric valve) is installed at the lowest point of the mixing tank 1 and the receiving tank 2 to drain the bottom medium. Explosion-proof solenoid valves 4 are installed at the top of the mixing tank 1 and the receiving tank 2 to ensure the safety of the tanks.

[0018] Both the mixing tank 1 and the receiving tank 2 are welded from stainless steel and feature nameplates and logos on the exterior. In this example, the test fluid, jet fuel No. 3, is used, so the logo is black with white text. A dosing port 104 is provided on the mixing tank 1 to facilitate the addition of antistatic agent. A stirring motor 103 is installed on the mixing tank 1. After adding the agent, the motor 103 rotates to mix the antistatic agent with the oil within the mixing tank 1.

[0019] The mixing tank 1 is also equipped with a thermometer for monitoring the oil temperature, a kerosene conductivity meter for monitoring the oil conductivity, and a magnetic flap level gauge 101 for real-time feedback of the liquid level in the mixing tank 1. The receiving tank 2 is also equipped with a thermometer for monitoring the oil temperature, a level transmitter 202 for real-time feedback of the liquid level in the receiving tank 2, and an electrostatic tester (here, electrostatic tester No. 1 201) for detecting the electrostatic field of the oil.

[0020] The top of the mixing tank 1 is equipped with a nitrogen outlet and a breathing valve 102; the top of the receiving tank 2 is equipped with a nitrogen inlet. The top of the mixing tank 1 is connected to the top of the receiving tank 2 via a rubber hose to ensure pressure balance between the mixing tank 1 and the receiving tank 2. Both the nitrogen inlet and the nitrogen outlet are equipped with electronically controlled valves. Before the test is started, nitrogen is pre-introduced into the mixing tank 1 and the receiving tank 2 to reduce the risk of explosion during subsequent electrostatic testing. By isolating oxygen, the oil is kept in an inert atmosphere, ensuring that the original oil, the additive oil, and other substances remain stable during the test cycle.

[0021] like Figure 2 As shown, the main pipeline includes a first centrifugal pump 7 for conveying oil, an electrostatic generator 13 and an electrostatic tester arranged in sequence. The first centrifugal pump 7 is a self-priming centrifugal pump.

[0022] In the main line, a main valve and a main filter 6 are provided at the front end of the first centrifugal pump 7, and a main pressure gauge 8, a main check valve 9, and a main flowmeter 10 are provided at the rear end in that order. The main check valve 9 allows the oil to flow from the mixing tank 1 to the receiving tank 2. In this embodiment, the main valves include a main line manual valve 4 (specifically, a manual butterfly valve) and a main line electric valve 5 (specifically, an electric butterfly valve).

[0023] The front end of the electrostatic generator 13 is provided with a reducer 11 and a secondary flowmeter 12, which are connected to the electrostatic generator 13 via an insulating tube and an insulating flange 18. A sampling valve 14 is provided between the electrostatic generator 13 and the electrostatic tester. The reducer 11 facilitates connection to the insulating flange 18.

[0024] like Figure 2 As shown, the first branch pipeline includes a first valve group for controlling the on / off and flow of the oil circuit. The first valve group includes a third electrically controlled valve 26 and a fourth electrically controlled valve 27. In this embodiment, both the third electrically controlled valve 26 and the fourth electrically controlled valve 27 are electric butterfly valves.

[0025] like Figure 3 As shown, the second branch pipeline includes a filter 16, a filter separator 17 and a second valve group for controlling the on-off and flow of the oil circuit.

[0026] In the second branch line, the filter 16 is a clay filter 16; the clay filter 16 selected in this embodiment includes 16 filter elements, and the maximum flow rate can reach 650L / min. In this embodiment, the selected filter separator 17 combines filtration and dehydration, and can filter out various small particles, water, fibers and suspended matter in the fuel. Its design and manufacture comply with the provisions and requirements of standard GB / T21358-2008. The flow rate of the filter separator 17 can reach 48 / h, with a pressure of up to 1.0 MPa. It is installed vertically, and its shell material is stainless steel. All materials of the filter separator 17 are chemically compatible with the fuel (oil). Its seals are made of fluororubber, nitrile rubber or materials with equivalent performance.

[0027] The second valve group includes several electrically controlled valves (electric butterfly valves in this embodiment) respectively located at the front and rear ends of the clay filter 16 and the filter separator 17. Specifically, an electrically controlled valve (corresponding to electrically controlled valve No. 5 28, electrically controlled valve No. 6 29, electrically controlled valve No. 7 30, and electrically controlled valve No. 8 31 in the figure) is respectively located at the front and rear ends of the clay filter 16 and the filter separator 17.

[0028] like Figure 3 As shown, the third branch pipeline includes a second centrifugal pump 21 for conveying oil and a third valve group for controlling the on-off and flow of the oil circuit.

[0029] In the third branch pipeline, a secondary check valve 19 and a secondary pressure gauge 20 are provided at the front end of the second centrifugal pump 21, and a secondary filter 22 is provided at the rear end thereof; the secondary check valve 19 allows the oil to flow from the receiving oil tank 2 side to the mixing oil tank 1 side; the third valve group includes a No. 1 electric-controlled valve 24 provided at the front end of the secondary check valve 19, and a No. 2 electric-controlled valve 25 and a No. 1 manual valve 23 provided at the rear end of the secondary filter 22.

[0030] The first branch pipeline and the second branch pipeline are connected in parallel and are arranged between the first centrifugal pump 7 and the electrostatic generator 13 of the main pipeline; the third branch pipeline is connected in series with the main pipeline; like Figure 4 As shown, the main pipeline and the first branch pipeline are connected in series with the test oil tank group to form a test branch for testing the original oil; Figure 5 As shown, the main pipeline, the first branch pipeline and the third branch pipeline are connected in series with the test oil tank group to form a dosing branch for testing the dosing oil; Figure 6 As shown, the main pipeline, the second branch pipeline and the third branch pipeline are connected in series with the test oil tank group to form a deagent branch for testing the added oil (i.e., deagentized oil) after filtering.

[0031] An aviation kerosene leak detector is provided in the setting area of ​​the test bench, which is used to detect the aviation kerosene concentration in the test bench setting area in real time and to alarm when the concentration exceeds the standard, thereby helping to ensure test safety.

[0032] The control system is used to control the operation of the test bench and collect test data; the test data includes oil tank level, pressure, flow, oil temperature and electrostatic field strength data. Specifically, the control system is equipped with the following modules: The upper computer operation module is equipped with a power on / off control, an emergency stop control, a mode switching control, and a test start control; in this embodiment, the control is a button.

[0033] The data display and control module includes an industrial computer and a display connected to the host computer, which is used to display the working status of the test bench, oil tank level, pressure, flow, oil temperature and electrostatic field strength data in real time.

[0034] The data management module is used to collect and store the test data of the test bench and generate historical data curves and historical data reports with adjustable periods.

[0035] The equipment control module is connected to the programmable logic controller, I / O devices with communication functions and communication instruments through configuration software, and sends instructions to the programmable logic controller to control the start and stop of the centrifugal pump, the switch of the electric valve and the start and stop of the electrostatic generator 13.

[0036] The operation mode module provides automatic and manual modes. In automatic mode, the operation mode module works in conjunction with the equipment control module to control the test bench's operation according to preset test procedures. In this embodiment, the preset test procedures include three preset test procedures corresponding to the original oil test, the additive-added oil test, and the additive-depleted oil test. Each preset test procedure includes start and stop instructions for the stirring motor 103, the centrifugal pump, the electric valve opening and closing instructions, the electrostatic generator 13 start and stop instructions, and electrostatic generator 13 parameter setting instructions, arranged according to the test time sequence.

[0037] In the manual mode, the operation mode module is linked to the equipment control module to receive manually input control instructions (including stirring motor 103 start and stop instructions, centrifugal pump start and stop instructions, electric valve switch instructions, electrostatic generator 13 start and stop instructions, electrostatic generator 13 parameter setting instructions, etc.) to control the test bench action.

[0038] The safety interlock module, equipped with an emergency stop device and motor fault interlocking protection, halts test bench operation and triggers audible and visual alarms when an alarm signal is present, while maintaining normal operation of the host computer operation module. In this embodiment, an alarm signal is issued when the aviation kerosene leak detector detects that the aviation kerosene concentration in the area exceeds the standard.

[0039] In specific applications, each complete antistatic agent charge release performance test includes three test processes: original oil test, additive oil test, and de-agent oil test. The test method for each process includes: loading an electrostatic voltage of about 60KV on a section of the pipeline at the rear end of the filter separator 17. During the process of the oil flowing through the section of the pipeline and entering the receiving oil tank 2, the electrostatic voltage on the oil pipeline close to the receiving oil tank 2 and the bottom surface of the receiving oil tank 2 is detected and recorded, and the time for the electrostatic charge to dissipate is recorded. After each process test is completed, the oil is pumped back from the receiving oil tank 2 to the mixing oil tank 1 through the second centrifugal pump 20 to prepare for the next test process. After a complete test is completed, the oil can be circulated through the filter 16 until the conductivity value of the oil in the mixing oil tank 1 reaches the set value before the next test can be carried out, otherwise the oil needs to be replaced.

[0040] Before the initial test, the original oil is added and nitrogen is filled into the test oil tank group for protection.

[0041] When adding the original oil, a fixed amount of the original oil is added to the mixing tank 1 via an external mobile centrifugal pump. Before starting the external mobile centrifugal pump, the manual ball valve behind the pump and the breathing valve 102 at the top of the mixing tank 1 need to be opened. During startup, all electric valves are closed, allowing the oil to be pumped into the mixing tank 1 and expelling the air inside the mixing tank 1. After the oil is completely filled into the mixing tank 1, the manual ball valve behind the pump and the breathing valve 102 at the top of the mixing tank 1 are closed, and nitrogen is introduced into the mixing tank 1. Furthermore, since the tops of the mixing tank 1 and the receiving tank 2 are connected via a rubber hose, the pressure inside the mixing tank 1 and the receiving tank 2 are balanced. Simultaneously, the electrically controlled valves for the nitrogen inlet and outlet are opened, allowing nitrogen to enter through the nitrogen inlet of the receiving tank 2 and air to be expelled through the nitrogen outlet of the mixing tank 1, achieving the purpose of nitrogen replacement.

[0042] Testing phase - original oil test; that is, the test of the initial oil without adding antistatic agent.

[0043] Select the original oil test in the control system, the system will automatically open the first valve group, the first centrifugal pump 7 is turned on, and the oil flow in the pipe is as follows Figure 4 As shown. Now, voltage is applied and test records are recorded according to the test method until the receiving tank 2 reaches the set high liquid level. At this point, the first centrifugal pump 7 is shut down, and the first valve group is closed. After the test is completed, the second and third electronically controlled valves 25 and 26 are opened, and the second centrifugal pump 21 is turned on, pumping the oil in the receiving tank 2 into the mixing tank 1 until the oil level in the receiving tank 2 reaches the set low liquid level, at which point the test phase ends.

[0044] Testing phase - additive oil testing; that is, testing the oil to which a quantitative antistatic agent is added without passing through the filter separator 17 and with passing through the filter separator 17.

[0045] After adding a predetermined amount of antistatic agent to the dosing port 104 of the stirring oil tank 1, the dosing oil test is selected in the control system. At this time, the stirring motor 103 on the stirring oil tank 1 is started to stir the oil in the stirring oil tank 1 so that the antistatic agent is evenly mixed in the oil. After the set time, the stirring motor 103 is shut down, and the oil is first tested without passing through the filter separator 17, and then needs to pass through the filter separator 17 to complete another test. During the operation through the filter separator 17, if it is detected that the pressure difference before and after the filter separator 17 reaches the set value, it switches to another filter separator 17. After the two tests are completed, the first centrifugal pump 7 is shut down, the second valve group is closed, and the No. 2 electric control valve 25 and the No. 3 electric control valve 26 are opened. The second centrifugal pump 21 is turned on to pump the oil in the receiving tank 2 into the stirring oil tank 1 until the oil level in the receiving tank 2 reaches the set low liquid level, and the test phase ends.

[0046] Testing stage - deagentized oil test; that is, testing the oil after filtering out the antistatic agent.

[0047] When the oil flows through the clay filter 16, most of the antistatic agent in the oil will be filtered out. When the deagentized oil test is selected, open the No. 5 electric control valve 28 and No. 6 electric control valve 29 in the second valve group, and the No. 4 electric control valve 27 in the first valve group; open the first centrifugal pump 7, and the oil flow direction in the pipe is as follows: Figure 6 As shown. According to the test method, voltage is applied and detection records are recorded until the receiving tank 2 reaches the set high liquid level. At this time, the first centrifugal pump 7 is shut down, the No. 4 electric control valve 27, the No. 5 electric control valve 28, and the No. 6 electric control valve 29 are closed, and the No. 2 electric control valve 25 and the No. 3 electric control valve 26 are opened. The second centrifugal pump 21 is turned on to pump the oil in the receiving tank 2 into the mixing tank 1 until the oil level in the receiving tank 2 reaches the set low liquid level, and the test phase ends.

[0048] During the aforementioned testing phase, a conductivity test was also performed using an aviation fuel conductivity meter, and the fuel conductivity and temperature were recorded during each test phase. During the deagentization test phase, while the antistatic agent was removed through the clay filter 16, the fuel was first circulated twice through the deagentization branch. The fuel after these two cycles was then subjected to conductivity testing until both conductivity values ​​were less than 3 pS / m, indicating that deagentization was complete. The deagentization test was then officially carried out.

[0049] After all test stages are completed, the charge release time of the oil under different conditions can be recorded, which can fully analyze the charge release performance of the antistatic agent.

[0050] The antistatic agent charge release performance test platform provided in this embodiment can provide a reliable and standard-compliant testing environment for testing the actual application effect of aviation kerosene antistatic agents, which helps to accurately measure the performance of antistatic agents and optimize the aviation kerosene blending and dosing effect.

[0051] The above is only an embodiment of the present invention. Common knowledge such as the specific structure and characteristics of the scheme is not described in detail here. Ordinary technicians in the relevant field are aware of all common technical knowledge in the technical field of the invention before the application date or priority date, can obtain all existing technologies in the field, and have the ability to apply conventional experimental means before that date. Ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the guidance of this application. Some typical well-known structures or well-known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. Antistatic agent charge release performance test platform, characterized by: The test bench comprises a test oil tank group and a pipeline system provided in the same circuit; the test oil tank group comprises a stirring oil tank and a receiving oil tank; the pipeline system comprises a main pipeline, a first branch pipeline, a second branch pipeline and a third branch pipeline; The stirring oil tank is used to store the original oil and add antistatic agent to the oil to prepare the additive oil; the receiving oil tank is used to receive the oil output from the stirring oil tank and then transported through the oil system; The main pipeline includes a first centrifugal pump for conveying oil, an electrostatic generator, and an electrostatic tester arranged in sequence; the first branch pipeline includes a first valve group for controlling the on-off and flow of the oil pipeline; the second branch pipeline includes a filter, a filter separator, and a second valve group for controlling the on-off and flow of the oil pipeline; the third branch pipeline includes a second centrifugal pump for conveying oil and a third valve group for controlling the on-off and flow of the oil pipeline; The first branch pipeline and the second branch pipeline are connected in parallel and are arranged between the first centrifugal pump and the electrostatic generator of the main pipeline; the third branch pipeline is connected in series with the main pipeline; The main line and the first branch line are connected in series with the test oil tank group to form a test branch for testing the original oil; the main line and the first branch line and the third branch line are connected in series with the test oil tank group to form a dosing branch for testing the dosing oil; the main line and the second branch line and the third branch line are connected in series with the test oil tank group to form a de-dosing branch for testing the dosing oil after filtering.

2. The antistatic agent charge release performance testing platform according to claim 1, characterized in that: The stirring oil tank is equipped with a stirring motor and an aviation kerosene conductivity meter; the top of the stirring oil tank is provided with a nitrogen outlet and a breathing valve; the top of the receiving oil tank is provided with a nitrogen inlet; the top of the stirring oil tank is connected to the top of the receiving oil tank through a rubber hose.

3. The antistatic agent charge release performance testing platform according to claim 1, characterized in that: The test bench also includes a test chassis; the stirring oil tank, pipeline system and receiving oil tank are all installed on the test chassis; the test chassis is a skid-mounted structure; the pipeline system and the skid-mounted structure are connected and fixed by plastic pipe clamps; the stirring oil tank and the receiving oil tank are separated from the skid-mounted structure by an insulating layer.

4. The antistatic agent charge release performance testing platform according to claim 3, characterized in that: The insulating layer includes a rubber layer and a polytetrafluoroethylene layer which are stacked.

5. The antistatic agent charge release performance testing platform according to claim 1, characterized in that: Insulating flanges are provided at the oil inlet and the oil outlet of the receiving oil tank; and an insulating pad is provided at the bottom of the receiving oil tank.

6. The antistatic agent charge release performance testing platform according to claim 1, characterized in that: In the main pipeline, a main valve and a main filter are provided at the front end of the first centrifugal pump, and a main pressure gauge, a main check valve and a main flow meter are provided at the rear end in sequence; the main check valve allows the oil to flow from the stirring tank side to the receiving tank side; The front end of the electrostatic generator is provided with a reducing pipe and a secondary flow meter, and the secondary flow meter is connected to the electrostatic generator through an insulating tube; a sampling valve is provided between the electrostatic generator and the electrostatic tester.

7. The antistatic agent charge release performance testing platform according to claim 1, characterized in that: In the second branch pipeline, the filter is a clay filter; the second valve group includes a plurality of electrically controlled valves respectively arranged at the front end and the rear end of the clay filter and the filter separator.

8. The antistatic agent charge release performance testing platform according to claim 1, characterized in that: In the third branch pipeline, a secondary check valve and a secondary pressure gauge are provided at the front end of the second centrifugal pump, and a secondary filter is provided at the rear end thereof; the secondary check valve allows the oil to flow from the receiving oil tank side to the mixing oil tank side; the third valve group includes a No. 1 electrically controlled valve provided at the front end of the secondary check valve, and a No. 2 electrically controlled valve and a No. 1 manual valve provided at the rear end of the secondary filter.

9. The antistatic agent charge release performance testing platform according to claim 1, characterized in that: An aviation kerosene leakage detector is arranged in the setting area of ​​the test bench.

10. The antistatic agent charge release performance testing platform according to claim 1, characterized in that: It also includes a control system; the control system is used to control the operation of the test bench and collect test data; the test data includes oil tank level, pressure, flow, oil temperature and electrostatic field strength data.

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