Sustainable aviation fuel automatic blending system

Abstract

The invention relates to the technical field of automatic blending, and discloses a sustainable aviation fuel automatic blending system which comprises a synthetic hydrocarbon component containing tank, a third jet fuel tank and a sustainable aviation fuel containing tank, and the synthetic hydrocarbon component containing tank and the third jet fuel tank are arranged in a left-right corresponding mode. The sustainable aviation fuel containing tank is located on the downstream of the synthetic hydrocarbon component containing tank and the third jet fuel tank, the two-way batch controller is used for collecting the flow passing through the blending pipeline flowmeter and the tank reversing pipeline flowmeter in real time, and the opening degree of the blending pump and the opening degree of the tank reversing pump outlet flow adjusting valve are adjusted in real time according to the passing flow ratio. According to the automatic blending system for the sustainable aviation fuel, on-line adjustment of the blending proportion is achieved, the needed blending proportion is finally achieved, the situations that the blending proportion is not accurate, the blending efficiency is low, two persons need to cooperate with operation of a tank reversing pump and a blending pump, and much manpower is occupied are prevented, and the practicability of the automatic blending system for the sustainable aviation fuel is improved.

Description

Technical Field

[0001] This invention relates to the field of automatic blending technology, specifically to an automatic blending system for sustainable aviation fuel. Background Technology

[0002] Sustainable aviation fuel (SAF) is currently a strategic emerging industry. This fuel has green carbon reduction properties and is the main way for the civil aviation industry to achieve green carbon reduction in the future.

[0003] Currently, sustainable aviation fuel blending and refueling services have been launched in China. However, the current sustainable aviation fuel blending operation is manual, which results in inaccurate blending ratios, inability to achieve real-time adjustments, low blending efficiency, and requires two people to operate the transfer pump and blending pump, which consumes a lot of manpower. Therefore, there is a need for an automatic sustainable aviation fuel blending system. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an automatic blending system for sustainable aviation fuel, which solves the problems of inaccurate blending ratios, inability to achieve real-time adjustment, low blending efficiency, and the need for two people to operate the transfer pump and blending pump, thus consuming a lot of manpower.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic blending system for sustainable aviation fuel, comprising a synthetic hydrocarbon component storage tank, a No. 3 jet fuel tank, and a sustainable aviation fuel storage tank; The synthetic hydrocarbon component storage tank and the No. 3 jet fuel tank are arranged on the left and right sides respectively, and the sustainable aviation fuel storage tank is located downstream of the synthetic hydrocarbon component storage tank and the No. 3 jet fuel tank; Among them, the synthetic hydrocarbon component storage tank and the No. 3 jet fuel tank are equipped with an automatic control cabinet on opposite sides. The automatic control cabinet is equipped with a dual-channel batch controller. A pipeline mixer is fixedly installed on the rear surface of the sustainable aviation fuel storage tank. The pipeline mixer has a second delivery pipe fixedly installed on its rear surface via a flange. The end of the second delivery pipe away from the pipeline mixer is fixedly installed with the No. 3 jet fuel tank. The left side of the pipeline mixer is fixedly connected to a synthetic hydrocarbon component feed pipe that communicates with its interior. The first conveying pipe is fixedly installed on the synthetic hydrocarbon component feed pipe via a flange. The end of the first conveying pipe away from the synthetic hydrocarbon component feed pipe is fixedly connected to the synthetic hydrocarbon component placement tank. The first conveying pipe is a blending pipeline, and the second conveying pipe is a transfer pipeline.

[0006] Preferably, a first gate valve, a regulating pump, a regulating flow regulating valve, a regulating flow meter, and a third gate valve are fixedly installed on the first delivery pipe from back to front via fixed flanges.

[0007] Preferably, a fourth gate valve, a transfer pump, a transfer flow regulating valve, a transfer flow meter, and a second gate valve are fixedly installed on the second delivery pipe from back to front via fixed flanges.

[0008] Preferably, the dual-channel batch controller is electrically connected to the control blending pump, blending flow regulating valve, blending flow meter, transfer pump, transfer flow regulating valve and transfer flow meter, and a one-way valve is installed after the blending pump and the transfer pump to prevent oil from crossing between oil tanks.

[0009] Preferably, the dual-channel batch controller is used to collect the flow rate of the mixing pipeline flow meter and the transfer tank pipeline flow meter in real time, and adjust the opening of the outlet flow regulating valve of the mixing pump and the transfer tank pump in real time according to the flow rate ratio that has passed, so as to realize the online adjustment of the mixing ratio and finally achieve the required mixing ratio.

[0010] Preferably, a set of cross baffles are fixedly connected to the upper and lower inner walls of the pipe mixer.

[0011] Preferably, a set of the cross baffles consists of two baffles arranged vertically in a cross configuration.

[0012] Compared with the prior art, the present invention provides a sustainable aviation fuel automatic blending system, which has the following beneficial effects: This sustainable aviation fuel automatic blending system uses a dual-channel batch controller to collect real-time flow data from the blending pipeline flow meter and the transfer pipeline flow meter. Based on the flow ratio already passed, it adjusts the opening of the outlet flow regulating valves of the blending pump and the transfer pump in real time, achieving online adjustment of the blending ratio to reach the desired ratio. This prevents inaccurate blending ratios, inability to achieve real-time adjustment, low blending efficiency, and the need for two people to operate the transfer pump and blending pump, which consumes significant manpower. Improving the practicality of the sustainable aviation fuel automatic blending system allows for the analysis and judgment of flow rates from both pipelines, and automatic flow adjustment. This avoids the risk of inaccurate blending ratios caused by manual operation, improves on-site work efficiency, reduces the labor intensity of operators, and reduces the number of personnel required for blending operations by two, saving labor costs.

[0013] This sustainable aviation fuel automatic blending system involves two fuels passing through two sets of cross baffles in a pipeline mixer, where they create turbulence through impact and diversion, breaking up the liquid flow mass. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall sustainable aviation fuel automatic blending system of the present invention; Figure 2 This is a schematic diagram of the entire invention on the right side; Figure 3 This is a schematic diagram of the interior of the pipe mixer of the present invention; Figure 4 This is a schematic diagram of the overall planar process of the present invention.

[0015] In the diagram: 1. Synthetic hydrocarbon component storage tank; 2. Cross baffle; 3. First gate valve; 4. Mixing pump; 5. Mixing flow regulating valve; 6. Mixing flow meter; 7. First delivery pipe; 8. Pipeline mixer; 9. Sustainable aviation fuel storage tank; 10. Synthetic hydrocarbon component feed pipe; 11. Second delivery pipe; 12. Second gate valve; 13. Transfer flow meter; 14. Transfer flow regulating valve; 15. Transfer pump; 16. No. 3 jet fuel tank; 17. Automatic control cabinet; 18. Third gate valve; 19. Fourth gate valve; 20. Check valve. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Please see Figure 1-4 The present invention provides a new technical solution: an automatic blending system for sustainable aviation fuel, including a synthetic hydrocarbon component storage tank 1 and a jet fuel tank 16 of type 3 and a sustainable aviation fuel storage tank 9. The synthetic hydrocarbon component storage tank 1 and the jet fuel tank 16 of type 3 are arranged in a left-right correspondence, and the sustainable aviation fuel storage tank 9 is located downstream of the synthetic hydrocarbon component storage tank 1 and the jet fuel tank 16 of type 3. Among them, the opposite sides of the synthetic hydrocarbon component storage tank 1 and the No. 3 jet fuel tank 16 are provided with an automatic control cabinet 17, and the inside of the automatic control cabinet 17 is provided with a dual-channel batch controller. The rear surface of the sustainable aviation fuel storage tank 9 is fixedly installed with a pipeline mixer 8. The second delivery pipe 11 is fixedly installed on the rear surface of the pipeline mixer 8 via a flange. The end of the second delivery pipe 11 away from the pipeline mixer 8 is fixedly installed with the No. 3 jet fuel tank 16. The left side of the pipeline mixer 8 is fixedly connected to the synthetic hydrocarbon component feed pipe 10 that communicates with its interior. The synthetic hydrocarbon component feed pipe 10 is fixedly installed with a first conveying pipe 7 via a flange. The end of the first conveying pipe 7 away from the synthetic hydrocarbon component feed pipe 10 is fixedly connected to the synthetic hydrocarbon component placement tank 1. The first conveying pipe 7 is a blending pipeline, and the second conveying pipe 11 is a transfer pipeline.

[0018] Furthermore, the first delivery pipe 7 is sequentially fixedly installed with a first gate valve 3, a regulating pump 4, a regulating flow regulating valve 5, a regulating flow meter 6, and a third gate valve 18 via fixed flanges from back to front.

[0019] Furthermore, the second delivery pipe 11 is sequentially mounted with a fourth gate valve 19, a transfer pump 15, a transfer flow regulating valve 14, a transfer flow meter 13, and a second gate valve 12 via fixed flanges from back to front.

[0020] Furthermore, the dual-channel batch controller is electrically connected to the control blending pump 4, blending flow regulating valve 5, blending flow meter 6, tank transfer pump 15, tank transfer flow regulating valve 14 and tank transfer flow meter 13. One-way valves 20 are installed after the blending pump 4 and the tank transfer pump 15 to prevent oil from crossing between oil tanks. Among them, the core components of the one-way valve 20 include the valve body, valve core, and spring (some types do not have springs), which work together to achieve the opening in the right direction and the closing in the reverse direction; When oil is transported from the "inlet end" (connected to the oil tank and pump at the supply end), the oil pressure will overcome the weight of the valve core or the preload of the spring, push the valve core open, form a flow channel, and the oil will flow smoothly to the outlet end (connected to the oil tank at the receiving end). If the pressure in the outlet tank is higher than that in the inlet (e.g., the pump suddenly stops or the oil level in the receiving tank is too high and causes back pressure), the oil will generate a reverse thrust. At this time, the spring will push the valve core to reset, or the valve core will tightly fit the sealing surface under its own weight and the action of the reverse pressure, completely blocking the channel and preventing the oil from flowing back from the outlet to the inlet, thereby avoiding oil cross-contamination.

[0021] Furthermore, the dual-channel batch controller is used to collect the flow rate of the mixing pipeline flow meter and the inverted tank pipeline flow meter in real time, and adjust the opening of the outlet flow regulating valve of the mixing pump 4 and the inverted tank pump 15 in real time according to the flow rate ratio that has passed, so as to realize the online adjustment of the mixing ratio and finally achieve the required mixing ratio.

[0022] Furthermore, a set of cross baffles 2 are fixedly connected to the upper and lower inner walls of the pipe mixer 8.

[0023] Furthermore, the two sets of cross baffles 2 consist of two baffles arranged in a cross pattern, one above the other.

[0024] Furthermore, when using this sustainable aviation fuel automatic blending system, automatic blending is mainly achieved by using a dual-channel batch controller connected to the flow regulating valve and flow meter on the on-site transfer pipeline and blending pipeline to achieve proportional blending of the target product, sustainable aviation fuel. In this process, the batch controller inputs the desired target ratio (e.g., 5% SAF ratio), then opens the first gate valve 3 and the third gate valve 18 on the first delivery pipe 7, and simultaneously opens the second gate valve 12 and the fourth gate valve 19 on the second delivery pipe 11. The dual-path batch controller synchronously starts the blending pump 4 and the tank transfer pump 15, so that the two fuels flow from the synthetic hydrocarbon component placement tank 1 and the No. 3 jet fuel tank 16 into the pipeline mixer 8, respectively.

[0025] Among them, the blending pump 4 transports the synthetic hydrocarbon components to the synthetic hydrocarbon component feed pipe 10 through the first conveying pipe 7, and the blending flow meter 6 monitors the flow rate in real time and feeds it back to the dual-path batch controller; the transfer pump 15 pumps No. 3 jet fuel into the pipeline mixer 8 through the second conveying pipe 11, and the transfer flow meter 13 monitors the flow rate synchronously.

[0026] If the flow rate of the synthetic hydrocarbon component is higher than the set ratio, the dual-path batch controller automatically reduces the opening of the blending flow regulating valve 5; if the flow rate of No. 3 jet fuel is insufficient, the opening of the transfer flow regulating valve 14 is increased, and the "flow ratio real-time calibration" mechanism ensures that the ratio of the two is always maintained at the set value. The system utilizes a dual-channel batch controller to collect real-time flow data from the blending pipeline flow meter and the transfer tank pipeline flow meter. Based on the flow ratio, it adjusts the opening of the outlet flow regulating valves of the blending pump 4 and the transfer tank pump 15 in real time, achieving online adjustment of the blending ratio to reach the desired ratio. This prevents inaccurate blending ratios, ensuring real-time adjustment and preventing low blending efficiency. It also avoids situations where two people are required to operate the transfer tank pump and blending pump, consuming significant manpower. Improving the practicality of the sustainable aviation fuel automatic blending system allows for the analysis and judgment of flow rates from both pipelines, automatic flow adjustment, and avoids the risk of inaccurate blending ratios caused by manual operation. Furthermore, it increases on-site work efficiency, reduces the labor intensity of operators, and eliminates the need for two additional personnel in the blending operation, saving labor costs. In this process, the two fuels first pass through two sets of cross baffles 2 in the pipeline mixer 8. Through impact and diversion, turbulence is formed, the liquid flow mass is broken, and axial and radial shear forces are generated, so that the synthetic hydrocarbon components and No. 3 jet fuel are uniformly mixed in dynamic mixing, thereby achieving online mixing and mixing quality.

[0027] Structural Description: Synthetic hydrocarbon component storage tank 1: Used to store synthetic hydrocarbon component raw materials, it is a basic raw material storage container for sustainable aviation fuel blending. It is connected to the pipeline mixer 8 through the first delivery pipe 7 to provide synthetic hydrocarbon component fuel for the blending process.

[0028] First gate valve 3: Installed on the first delivery pipe 7, it is used to control the delivery path of synthetic hydrocarbon components. When open, it allows synthetic hydrocarbon components to flow through the first delivery pipe 7 to the pipeline mixer 8. When closed, it cuts off the fluid to ensure system safety and start / stop control of the blending process.

[0029] Blending pump 4: Fixedly installed on the first conveying pipe 7, serving as the power source for conveying synthetic hydrocarbon components, pumping synthetic hydrocarbon components from the synthetic hydrocarbon component storage tank 1 to the pipeline mixer 8, with a one-way valve 20 installed at its outlet to prevent fuel backflow and oil cross-contamination.

[0030] Blending flow regulating valve 5: Located downstream of blending pump 4, it is controlled by a dual-path batch controller. By adjusting the valve opening, it adjusts the flow rate of the synthetic hydrocarbon components in real time to ensure that the synthetic hydrocarbon components are mixed with No. 3 jet fuel in a set ratio.

[0031] Blending flow meter 6: Installed downstream of blending flow regulating valve 5, it monitors the flow rate of synthetic hydrocarbon components in real time and feeds the data back to the dual-path batch controller, providing flow data support for precise control of blending ratio.

[0032] First conveying pipe 7: As a blending pipeline, it connects the synthetic hydrocarbon component placement tank 1 and the pipeline mixer 8 to the synthetic hydrocarbon component feed pipe 10, which is used to transport the synthetic hydrocarbon component to the mixer. The first gate valve 3, blending pump 4 and other equipment are installed in sequence on the pipeline to ensure the transport and flow control of the synthetic hydrocarbon component.

[0033] Pipeline mixer 8: Fixed to the rear surface of sustainable aviation fuel storage tank 9, it is the core component for mixing the two fuels. It is equipped with cross baffles 2 inside, which achieve uniform mixing of synthetic hydrocarbon components and No. 3 jet fuel through impact and diversion.

[0034] Sustainable aviation fuel storage tank 9: Used to store the final blended sustainable aviation fuel, receiving the blended fuel from the pipeline mixer 8, and providing a finished product container for the use or subsequent storage of aviation fuel.

[0035] Synthetic hydrocarbon component feed pipe 10: It is connected to the left side of the pipeline mixer 8, and one end is connected to the first conveying pipe 7 through a flange, which introduces the synthetic hydrocarbon component into the pipeline mixer 8. It is the key channel for the synthetic hydrocarbon component to enter the mixing process.

[0036] Second delivery pipe 11: As a transfer pipeline, one end is connected to the rear surface of pipeline mixer 8 via a flange, and the other end is connected to No. 3 jet fuel tank 16, used to transport No. 3 jet fuel to pipeline mixer 8. Related control equipment is installed on the pipeline.

[0037] Second gate valve 12: Installed on the second delivery pipe 11, it controls the delivery path of No. 3 jet fuel. Opening or closing this valve can control whether No. 3 jet fuel enters the pipeline mixer 8, ensuring the start and stop control of the transfer process.

[0038] Inverted flow meter 13: Installed on the second delivery pipe 11, it monitors the delivery flow rate of No. 3 jet fuel in real time and transmits the data to the dual-channel batch controller, providing a basis for accurately controlling the delivery amount of No. 3 jet fuel.

[0039] The inlet flow regulating valve 14 is located upstream of the inlet flow meter 13 and is controlled by a dual-channel batch controller. It adjusts the delivery flow of No. 3 jet fuel in real time according to the set ratio to ensure that the two fuels are mixed in proportion.

[0040] Transfer pump 15: Installed on the second delivery pipe 11, it provides power for the delivery of No. 3 jet fuel, pumping No. 3 jet fuel from No. 3 jet fuel tank 16 to pipeline mixer 8 to realize the transfer of fuel.

[0041] No. 3 jet fuel tank 16: A container for storing No. 3 jet fuel, connected to the pipeline mixer 8 via the second delivery pipe 11, providing No. 3 jet fuel feedstock for sustainable aviation fuel blending.

[0042] Automatic control cabinet 17: Located on the opposite side of synthetic hydrocarbon component placement tank 1 and jet fuel tank 16, it is equipped with a dual-channel batch controller and is the control center of the entire blending system. It is responsible for collecting flow data, adjusting equipment operation, and realizing automatic blending control.

[0043] The third gate valve 18 is installed at the end of the first delivery pipe 7, near the pipeline mixer 8, and is used to control the passage of synthetic hydrocarbon components into the mixer. It works in conjunction with the first gate valve 3 to ensure the safe operation and process control of the blending system.

[0044] Fourth gate valve 19: Installed at the end of the second delivery pipe 11, near the pipeline mixer 8, it controls the passage of No. 3 jet fuel into the mixer and works in conjunction with the second gate valve 12 to ensure the safe start and stop of the transfer process and flow control.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sustainable aviation fuel automatic blending system, characterized in that, include: Synthetic hydrocarbon component storage tank (1) and No. 3 jet fuel tank (16) and sustainable aviation fuel storage tank (9); The synthetic hydrocarbon component storage tank (1) and the No. 3 jet fuel tank (16) are arranged in a left-right correspondence, and the sustainable aviation fuel storage tank (9) is located downstream of the synthetic hydrocarbon component storage tank (1) and the No. 3 jet fuel tank (16); Among them, the opposite sides of the synthetic hydrocarbon component storage tank (1) and the No. 3 jet fuel tank (16) are provided with an automatic control cabinet (17), and the inside of the automatic control cabinet (17) is provided with a dual-path batch controller. The rear surface of the sustainable aviation fuel storage tank (9) is fixedly installed with a pipeline mixer (8). Among them, the rear surface of the pipeline mixer (8) is fixedly installed with a second delivery pipe (11) via a flange. The end of the second delivery pipe (11) away from the pipeline mixer (8) is fixedly installed with the No. 3 jet fuel tank (16). The left side of the pipeline mixer (8) is fixedly connected with a synthetic hydrocarbon component feed pipe (10) that communicates with its interior. Among them, a first conveying pipe (7) is fixedly installed on the synthetic hydrocarbon component feed pipe (10) by a flange. The end of the first conveying pipe (7) away from the synthetic hydrocarbon component feed pipe (10) is fixedly connected to the synthetic hydrocarbon component placement tank (1). The first conveying pipe (7) is a blending pipeline, and the second conveying pipe (11) is a transfer pipeline.

2. The sustainable aviation fuel automatic blending system according to claim 1, characterized in that: The first delivery pipe (7) is fixedly installed from back to front via a fixed flange with a first gate valve (3), a regulating pump (4), a regulating flow regulating valve (5), a regulating flow meter (6) and a third gate valve (18).

3. The sustainable aviation fuel automatic blending system according to claim 1, characterized in that: The second delivery pipe (11) is fixedly installed from back to front via a fixed flange with a fourth gate valve (19), a tank transfer pump (15), a tank transfer flow regulating valve (14), a tank transfer flow meter (13), and a second gate valve (12).

4. The sustainable aviation fuel automatic blending system according to claim 1, characterized in that: The dual-channel batch controller is electrically connected to the control blending pump (4), blending flow regulating valve (5), blending flow meter (6), tank transfer pump (15), tank transfer flow regulating valve (14) and tank transfer flow meter (13). One-way valves (20) are installed after the blending pump (4) and the tank transfer pump (15) to prevent oil from crossing between oil tanks.

5. The sustainable aviation fuel automatic blending system according to claim 1, characterized in that: The dual-channel batch controller is used to collect the flow rate of the mixing pipeline flow meter and the inverted tank pipeline flow meter in real time, and adjust the opening of the outlet flow regulating valve of the mixing pump (4) and the inverted tank pump (15) in real time according to the flow rate ratio that has passed, so as to realize the online adjustment of the mixing ratio and finally achieve the required mixing ratio.

6. The sustainable aviation fuel automatic blending system according to claim 1, characterized in that: A set of cross baffles (2) are fixedly connected to the upper and lower inner walls of the pipe mixer (8).

7. The sustainable aviation fuel automatic blending system according to claim 6, characterized in that: A set of the cross baffles (2) consists of two baffles arranged in a cross pattern.

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