Gas-liquid conveying device for preparing biological aviation kerosene from biomass oil

By designing a gas-liquid transport device including a settlement tank and a gas-liquid separator, the existing bioaerospace kerosene gas-liquid transport device has solved the problems of high energy consumption and low transportation efficiency, and the efficient transportation of gas-liquid mixtures and the reduction of energy consumption are achieved.

CN222829115UActive Publication Date: 2025-05-06BEIJING ZHONGNENG HUAN TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202421424486.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-21
Publication Date
2025-05-06
Estimated Expiration
2034-06-21

AI Technical Summary

Technical Problem

The existing gas-liquid transport devices of bioaerospace kerosene have problems such as high energy consumption and low transportation efficiency, especially when the gas compression or expansion rate is fast, it is easy to form a segmented plug flow, resulting in slow infusion.

Method used

A gas-liquid transport device for biomass oil-made bioaerospace kerosene is designed. The gas in the gas, liquid and solid raw material mixture is separated from the liquid and solid through the first settlement tank and the second gas-liquid separator and the second gas-liquid separator. The gas is supercharged and transported through the air compressor. The liquid and solid mixture is supercharged and metered through the liquid pressurization mechanism to control the mixing ratio of gas and liquid and solid to avoid the formation of the plug flow.

Benefits of technology

Through the design of this device, the efficiency of gas-liquid transport is significantly improved, energy consumption is reduced, the formation of segmented plug flow is avoided, and the efficient transportation of gas-liquid mixture is achieved.

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Patent Text Reader

Abstract

A gas-liquid conveying device for preparing biological aviation kerosene from biomass oil is characterized in that a main liquid inlet pipe is connected with inlets of a first settling tank and a second settling tank, exhaust ports of the first settling tank and the second settling tank are connected with an inlet of a first mixing pipe, liquid outlets of the first settling tank and the second settling tank are connected with a main liquid conveying pipe, and an outlet of the first mixing pipe is divided into two paths, the first mixing pipe is connected with inlets of a first gas-liquid separator and a second gas-liquid separator respectively, gas outlets of the first gas-liquid separator and the second gas-liquid separator are connected with an inlet of a second mixing pipe, liquid outlets of the first gas-liquid separator and the second gas-liquid separator are connected with a main liquid conveying pipe, and an outlet of the second mixing pipe is divided into two paths, the air outlet of the first air compressor and the air outlet of the second air compressor are connected in parallel and are connected with an air output pipe; the main liquid conveying pipe is connected with a liquid inlet pipe of the liquid pressurizing mechanism, and a liquid outlet main pipe and a gas output pipe of the liquid pressurizing mechanism are connected with the gas-liquid mixing outlet pipe.
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Description

Technical Field

[0001] The utility model belongs to the technical field of aviation kerosene preparation devices, and in particular relates to a gas-liquid conveying device for preparing bio-aviation kerosene from biomass oil. Background Art

[0002] With the rapid development of the world's aviation industry, aircraft are increasingly used in military and civilian fields. Aircraft must use liquid fuel, especially large jet aircraft, which consume a huge amount of fuel. The greenhouse effect caused by the carbon dioxide produced after the fuel is burned is extremely harmful to the environment. For this reason, all countries are looking for a new type of traditional aviation fuel substitute. Compared with traditional aviation fuel, bio-jet kerosene can reduce carbon dioxide emissions by 60% to 80%. Therefore, the development of bio-jet kerosene is the fundamental way to reduce carbon emissions in the aviation industry.

[0003] The production technology of bio-jet fuel includes multiple complex steps, among which, after the biomass material particles are hydrogenated by the hydrogenation reaction device, the gas, liquid and solid raw material mixture is output to the next processing unit. Since the gas, liquid and solid raw material mixture needs to be pressurized during the transportation process to improve the transportation efficiency, the gas compression or expansion rate after pressurization is fast, which easily forms a slug flow and slows the infusion. The infusion speed can only be accelerated by continuous pressurization, which will cause high energy consumption. At present, there is an urgent need for a conveying device with low energy consumption and high transportation efficiency. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide a gas-liquid conveying device for biomass oil-based bio-aviation kerosene with low energy consumption and high conveying efficiency.

[0005] The technical solution adopted to solve the above technical problems is: a gas-liquid conveying device for biomass oil-based bio-jet kerosene, wherein a main liquid inlet pipe is connected to the inlet of a first settling tank and the inlet of a second settling tank, the exhaust port of the first settling tank and the exhaust port of the second settling tank are connected in parallel to the inlet of the first mixing tube, the discharge port of the first settling tank and the discharge port of the second settling tank are connected in parallel to the main liquid delivery pipe through a pipeline, the outlet of the first mixing tube is divided into two paths, one path is connected to the inlet of a first gas-liquid separator through a pipeline, and the other path is connected to the inlet of the second gas-liquid separator through a pipeline, the gas outlet of the first gas-liquid separator and the gas outlet of the second gas-liquid separator are connected in parallel to the inlet of the second mixing tube, the liquid outlet of the first gas-liquid separator and the liquid outlet of the second gas-liquid separator are connected to the main liquid delivery pipe, the outlet of the second mixing tube is divided into two paths, one path is connected to the air inlet of a first air compressor through a pipeline, and the other path is connected to the air inlet of the second air compressor through a pipeline, and the air outlet of the first air compressor and the air outlet of the second air compressor are connected to the gas output pipe in parallel;

[0006] The main liquid delivery pipe is connected to the liquid inlet pipe of the liquid pressurizing mechanism, and the liquid pressurizing mechanism is a liquid inlet pipe connected to the inlet of the filter through a pipeline, and the outlet of the filter is connected to the feed port of the left circulation tank and the feed port of the right circulation tank through a pipeline, and the discharge port of the left circulation tank and the discharge port of the right circulation tank are connected in parallel with the inlet of the liquid outlet main pipe, and a one-way valve and a flow meter are arranged on the liquid outlet main pipe, and a pressurizing mechanism is arranged on the left circulation tank and the right circulation tank, and the pressurizing mechanism is used to realize the left circulation tank feeding and the right circulation tank discharging at the same time, or the left circulation tank discharging and the right circulation tank feeding at the same time;

[0007] The liquid outlet main pipe and the gas output pipe are connected to the gas-liquid mixed outlet pipe.

[0008] As a preferred technical solution, a pressure stabilizing tank is provided on the liquid outlet main pipe, and the pressure stabilizing tank is located downstream of the one-way valve.

[0009] As a preferred technical solution, a pressure regulating valve is also provided on the liquid outlet main pipe, and the pressure regulating valve is located downstream of the pressure stabilizing tank.

[0010] As a preferred technical solution, the pressurizing mechanism includes a left buffer cylinder, a right buffer cylinder, a left piston, a right piston, a left hydraulic cylinder, a right hydraulic cylinder, a first hydraulic pump, and a second hydraulic pump. A left piston is arranged in the left buffer cylinder, a port of the left buffer cylinder is connected to the left circulation tank, the left piston is connected to the power end of the left hydraulic cylinder, the hydraulic oil outlet of the left hydraulic cylinder is connected to the inlet of the first hydraulic pump through a pipeline, and the hydraulic oil inlet is connected to the outlet of the second hydraulic pump through a pipeline; a right piston is arranged in the right buffer cylinder, a port of the right buffer cylinder is connected to the right circulation tank, the right piston is connected to the power end of the right hydraulic cylinder, the hydraulic oil inlet of the right hydraulic cylinder is connected to the outlet of the first hydraulic pump through a pipeline, and the hydraulic oil outlet is connected to the inlet of the second hydraulic pump through a pipeline.

[0011] The beneficial effects of the utility model are as follows:

[0012] The utility model realizes separation of gas from liquid and solid in a gas, liquid and solid raw material mixture through the first settling tank and the second settling tank and the first gas-liquid separator and the second gas-liquid separator; the gas is pressurized, conveyed and metered through the first air compressor and the second air compressor; the liquid and solid mixture is pressurized, metered and conveyed through the liquid pressurizing mechanism; and the problem of slug flow formation is avoided by controlling the mixing ratio of gas and liquid and solid, thereby greatly improving the conveying efficiency and reducing the energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Among them, the first sedimentation tank 1; the second sedimentation tank 2; the main liquid transfer pipe 3; the second gas-liquid separator 4; the second air compressor 5; the first mixing pipe 6; the first gas-liquid separator 7; the second mixing pipe 8; the first air compressor 9; the filter 10; the right circulation tank 11; the right buffer cylinder 12; the right piston 13; the right hydraulic cylinder 14; the second hydraulic pump 15; the first hydraulic pump 16; the left hydraulic cylinder 17; the left piston 18; the left buffer cylinder 19; the left circulation tank 20; the one-way valve 21; the pressure stabilizing tank 22; the pressure regulating valve 23; the flow meter 24, and the gas-liquid mixing outlet pipe 25. DETAILED DESCRIPTION

[0015] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments, but the present invention is not limited to the following embodiments.

[0016] exist Figure 1 In the gas-liquid conveying device for biomass oil-based bio-jet fuel of the present embodiment, the main liquid inlet pipe is connected to the inlet of the first settling tank 1 and the inlet of the second settling tank 2, the exhaust port of the first settling tank 1 and the exhaust port of the second settling tank 2 are connected in parallel to the inlet of the first mixing pipe 6, the discharge port of the first settling tank 1 and the discharge port of the second settling tank 2 are connected in parallel to the main liquid infusion pipe 3 through a pipeline, the outlet of the first mixing pipe 6 is divided into two paths, one path is connected to the inlet of the first gas-liquid separator 7 through a pipeline, and the other path is connected to the inlet of the second gas-liquid separator 4 through a pipeline, the gas outlet of the first gas-liquid separator 7 and the gas outlet of the second gas-liquid separator 4 are connected in parallel to the inlet of the second mixing pipe 8, the liquid outlet of the first gas-liquid separator 7 and the liquid outlet of the second gas-liquid separator 4 are connected to the main liquid infusion pipe 3, and the outlet of the second mixing pipe 8 is divided into two paths, one path is connected to the air inlet of the first air compressor 9 through a pipeline. The first air compressor 9 and the second air compressor 5 are connected in parallel, and the other is connected to the air inlet of the second air compressor 5 through a pipeline. The air outlet of the first air compressor 9 and the air outlet of the second air compressor 5 are connected to the gas output pipe in parallel; the gas, liquid and solid raw material mixture output by the hydrogenation reaction device enters the first settling tank 1 and the second settling tank 2 to realize gas and liquid-solid stratification, the gas is in the upper part of the settling tank, and the liquid is in the lower part of the settling tank. The gas in the upper part of the settling tank enters the first gas-liquid separator 7 and the second gas-liquid separator 4 connected in parallel, and the liquid at the bottom of the settling tank enters the main liquid delivery pipe 3. The first gas-liquid separator 7 and the second gas-liquid separator 4 separate the liquid in the gas, and the separated liquid enters the main liquid delivery pipe 3. The separated gas enters the first air compressor 9 and the second air compressor 5. The gas pressure and flow are controlled by the first air compressor 9 and the second air compressor 5, and the first air compressor 9 and the second air compressor 5 output gas with a certain pressure to the gas output pipe.

[0017] The main liquid delivery pipe 3 is connected to the liquid inlet pipe of the liquid pressurizing mechanism, and is used to input the raw material solid-liquid mixture into the liquid pressurizing mechanism for pressurized treatment. The liquid pressurizing mechanism is a liquid inlet pipe connected to the inlet of the filter 10 through a pipeline, and the outlet of the filter 10 is connected to the feed port of the left circulation tank 20 and the feed port of the right circulation tank 11 through a pipeline. The discharge port of the left circulation tank 20 and the discharge port of the right circulation tank 11 are connected in parallel to the inlet of the liquid outlet main pipe. A one-way valve 21 and a flow meter 24 are installed on the liquid outlet main pipe to prevent the raw material from flowing back to the left circulation tank 20 or the right circulation tank 1 1. The flow meter 24 is used to monitor the flow of the liquid outlet main pipe in real time. The left circulation tank 20 and the right circulation tank 11 are equipped with a pressurizing mechanism, through which the left circulation tank 20 is fed and the right circulation tank 11 is discharged, or the left circulation tank 20 is discharged and the right circulation tank 11 is fed; the raw material solid-liquid mixture enters the filter 10 through the liquid inlet pipe, and after the larger solid particles are filtered out by the filter 10, it enters the left circulation tank 20 or the right circulation tank 11. Under the action of the pressurizing mechanism, the raw material solid-liquid mixture is fully mixed in the left circulation tank 20 or the right circulation tank 11.

[0018] A pressure stabilizing tank 22 and a pressure regulating valve 23 are installed between the one-way valve 21 and the flow meter 24 on the liquid outlet main pipe. The pressure stabilizing tank 22 is located downstream of the one-way valve 21, and the pressure regulating valve 23 is located downstream of the pressure stabilizing tank 22. The pressure in the liquid outlet main pipe is adjusted by the pressure regulating valve 23 and the pressure stabilizing tank 22 to ensure stable output pressure. The liquid outlet main pipe and the gas output pipe are connected to the gas-liquid mixed outlet pipe 25.

[0019] The pressurizing mechanism of this embodiment includes a left buffer cylinder 19, a right buffer cylinder 12, a left piston 18, a right piston 13, a left hydraulic cylinder 17, a right hydraulic cylinder 14, a first hydraulic pump 16, and a second hydraulic pump 15. The left piston 18 is installed in the left buffer cylinder 19, the port of the left buffer cylinder 19 is connected to the left circulation tank 20, the left piston 18 is connected to the power end of the left hydraulic cylinder 17, the hydraulic oil outlet of the left hydraulic cylinder 17 is connected to the inlet of the first hydraulic pump 16 through a pipeline, and the hydraulic oil inlet is connected to the outlet of the second hydraulic pump 15 through a pipeline; the right piston 13 is installed in the right buffer cylinder 12, the port of the right buffer cylinder 12 is connected to the right circulation tank 11, the right piston 13 is connected to the power end of the right hydraulic cylinder 14, the hydraulic oil inlet of the right hydraulic cylinder 14 is connected to the outlet of the first hydraulic pump 16 through a pipeline, and the hydraulic oil outlet is connected to the inlet of the second hydraulic pump 15 through a pipeline.

[0020] First cycle: When the left hydraulic cylinder 17 is retracted and the left piston 18 in the left buffer cylinder 19 moves downward, the raw material mixed liquid is sucked from the filter 10 into the left circulation tank 20 and the left buffer cylinder 19. At the same time, the right hydraulic cylinder 14 is pushed and the right piston 13 in the right buffer cylinder 12 moves upward. Under the action of the thrust, the raw material mixed liquid in the right buffer cylinder 12 is pushed into the right circulation tank 11 and enters the liquid outlet main pipe;

[0021] Second cycle: when the right hydraulic cylinder 14 retracts and the left piston 18 in the right buffer cylinder 12 moves downward, the raw material mixture is sucked from the filter 10 into the right circulation tank 11 and the right buffer cylinder 12. At the same time, the left hydraulic cylinder 17 pushes and the left piston 18 in the left buffer cylinder 19 moves upward. Under the action of the thrust, the raw material mixture in the left buffer cylinder 19 is pushed into the left circulation tank 20 and enters the liquid outlet main pipe.

[0022] Repeat the first cycle and the second cycle to achieve uninterrupted input and output of the raw material mixed liquid. At the same time, due to the strong vibration of the raw material solid-liquid mixed liquid during this cycle, the solid and liquid in the raw material solid-liquid mixed liquid are fully mixed.

[0023] The utility model regulates the pressure of gas and liquid-solid mixture respectively so that the two reach the same pressure level, and avoids the problem of slug flow formation by controlling the mixing ratio of gas and liquid-solid, thereby greatly improving the conveying efficiency and reducing the energy consumption.

Claims

1. A gas-liquid conveying device for biomass oil-based bio-jet kerosene, characterized in that: The main liquid inlet pipe is connected to the inlet of the first settling tank and the inlet of the second settling tank, the exhaust port of the first settling tank and the exhaust port of the second settling tank are connected to the inlet of the first mixing pipe in parallel, the discharge port of the first settling tank and the discharge port of the second settling tank are connected to the main liquid delivery pipe in parallel through a pipeline, the outlet of the first mixing pipe is divided into two paths, one path is connected to the inlet of the first gas-liquid separator through a pipeline, and the other path is connected to the inlet of the second gas-liquid separator through a pipeline, the gas outlet of the first gas-liquid separator and the gas outlet of the second gas-liquid separator are connected to the inlet of the second mixing pipe in parallel, the liquid outlet of the first gas-liquid separator and the liquid outlet of the second gas-liquid separator are connected to the main liquid delivery pipe, the outlet of the second mixing pipe is divided into two paths, one path is connected to the air inlet of the first air compressor through a pipeline, and the other path is connected to the air inlet of the second air compressor through a pipeline, the air outlet of the first air compressor and the air outlet of the second air compressor are connected to the gas output pipe in parallel; The main liquid delivery pipe is connected to the liquid inlet pipe of the liquid pressurizing mechanism, and the liquid pressurizing mechanism is a liquid inlet pipe connected to the inlet of the filter through a pipeline, and the outlet of the filter is connected to the feed port of the left circulation tank and the feed port of the right circulation tank through a pipeline, and the discharge port of the left circulation tank and the discharge port of the right circulation tank are connected in parallel with the inlet of the liquid outlet main pipe, and a one-way valve and a flow meter are arranged on the liquid outlet main pipe, and a pressurizing mechanism is arranged on the left circulation tank and the right circulation tank, and the pressurizing mechanism is used to realize the left circulation tank feeding and the right circulation tank discharging at the same time, or the left circulation tank discharging and the right circulation tank feeding at the same time; The liquid outlet main pipe and the gas output pipe are connected to the gas-liquid mixed outlet pipe.

2. The gas-liquid conveying device for biomass oil-based bio-jet fuel according to claim 1, characterized in that: A pressure stabilizing tank is arranged on the liquid outlet main pipe, and the pressure stabilizing tank is located downstream of the one-way valve.

3. The gas-liquid conveying device for biomass oil-based bio-jet fuel according to claim 2, characterized in that: The liquid outlet main pipe is also provided with a pressure regulating valve, which is located downstream of the pressure stabilizing tank.

4. The gas-liquid conveying device for biomass oil-based bio-jet kerosene according to claim 1, characterized in that: The pressurizing mechanism includes a left buffer cylinder, a right buffer cylinder, a left piston, a right piston, a left hydraulic cylinder, a right hydraulic cylinder, a first hydraulic pump, and a second hydraulic pump. The left buffer cylinder is provided with a left piston, the port of the left buffer cylinder is connected to the left circulation tank, the left piston is connected to the power end of the left hydraulic cylinder, the hydraulic oil outlet of the left hydraulic cylinder is connected to the inlet of the first hydraulic pump through a pipeline, and the hydraulic oil inlet is connected to the outlet of the second hydraulic pump through a pipeline; the right buffer cylinder is provided with a right piston, the port of the right buffer cylinder is connected to the right circulation tank, the right piston is connected to the power end of the right hydraulic cylinder, the hydraulic oil inlet of the right hydraulic cylinder is connected to the outlet of the first hydraulic pump through a pipeline, and the hydraulic oil outlet is connected to the inlet of the second hydraulic pump through a pipeline.