A blending device for ethanol gasoline

Abstract

This disclosure relates to the technical field of gasoline production. One embodiment of this disclosure provides an ethanol gasoline blending device, which includes: a blending tank and a connecting flange. The connecting flange is disposed at the bottom of the blending tank. A feeding blending assembly is disposed inside the blending tank. The feeding blending assembly includes a fixing frame disposed at the top of the blending tank. A transmission port is opened at the top of the blending tank. A first feeding pipe is disposed inside the fixing frame. The first feeding pipe passes through the transmission port and is located inside the blending tank. A plurality of dispersion holes are opened around the outer surface of the first feeding pipe. A rotating tube is fitted outside the first feeding pipe. A plurality of elongated openings are vertically opened around the outer surface of the rotating tube. Through the above technical solution, the technical problems in the prior art are solved, such as the significant difference in density and viscosity between ethanol and gasoline, and the large influence of temperature on their miscibility, which easily leads to local stratification when directly mixed in the main tank, resulting in prolonged stirring time and difficulty in avoiding trace phase separation.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the technical field of gasoline production, and more specifically, to an apparatus for blending ethanol gasoline. Background Technology

[0002] In the large-scale production of ethanol gasoline, the rationality of the blending unit's process directly determines the level of fuel homogenization. Existing blending equipment mostly adopts a single-stage tank mixing structure, directly injecting ethanol, base gasoline, and additives into the main tank for stirring, lacking a targeted pre-mixing stage. Because ethanol and gasoline have significant differences in density and viscosity, and their miscibility is greatly affected by temperature, direct mixing in the main tank easily leads to localized stratification, resulting in prolonged stirring time and making it difficult to avoid trace phase separation. Meanwhile, when additives (such as antioxidants and metal passivators) are directly added to the main tank, uneven dispersion can easily lead to localized high-concentration areas, affecting their effectiveness. Actual production data shows that the ethanol content deviation in ethanol gasoline produced by such equipment often reaches ±0.5%, far exceeding the national standard requirement of ±0.1%, and an additional circulating filtration process is required to eliminate agglomerates, increasing energy consumption and reducing production continuity. Therefore, there is an urgent need to develop blending devices with premixing capabilities to solve these problems. Utility Model Content

[0003] To overcome the above-mentioned defects, the embodiments of this disclosure provide an ethanol gasoline blending device, which solves the technical problems in the prior art where, due to the significant differences in density and viscosity between ethanol and gasoline, and the fact that their miscibility is greatly affected by temperature, local stratification is easily formed when directly mixed in the main tank, resulting in prolonged stirring time and difficulty in avoiding trace phase separation.

[0004] According to one aspect, at least one embodiment of the present disclosure provides an apparatus for blending ethanol gasoline, comprising: A mixing tank and a connecting flange, wherein the connecting flange is located at the bottom of the mixing tank; A feeding and mixing assembly is disposed inside the mixing tank; The feeding and mixing assembly includes a fixed frame, which is disposed on the top of the mixing tank. A transmission port is provided on the top of the mixing tank. A first feeding pipe is disposed inside the fixed frame. The first feeding pipe passes through the transmission port and is located inside the mixing tank. A plurality of dispersion holes are provided around the outer surface of the first feeding pipe.

[0005] As a further technical solution, a rotating tube is connected to the inner rotating sleeve of the transmission port. The rotating tube is fitted outside the first feed pipe, and several long openings are vertically opened around the outer surface of the rotating tube.

[0006] As a further technical solution, the outer surface of the rotating tube is provided with helical blades, the inside of the mixing tank is provided with a perforated plate, the perforated plate is located at the lower end of the first feed pipe and the rotating tube, and the top of the mixing tank is provided with a second feed pipe.

[0007] As a further technical solution, a pair of sleeves are provided on one side of the fixed frame, and a connecting pipe is fixedly connected inside the sleeve. A pressure relief valve is provided at the upper end of the connecting pipe, and a dispersing pipe is provided around the top of the mixing tank.

[0008] As a further technical solution, an air inlet pipe is installed on the top of the mixing tank, the air inlet pipe is connected to the dispersion pipe, a drive motor is installed on the top of the fixing frame, and a transmission wheel is installed at the output end of the drive motor and on the outside of the rotating tube, and the transmission wheels are connected by belt drive.

[0009] As a further technical solution, flanges are provided at the upper ends of both the first feed pipe and the second feed pipe.

[0010] As a further technical solution, a pair of sealing layers are provided on the outer surface of the rotating tube, and the sealing layers are respectively sealed and attached to the inner and outer surfaces of the top of the mixing tank.

[0011] As a further technical solution, the dispersion pipe has a circular annular structure.

[0012] The beneficial effects of the embodiments disclosed herein are as follows: 1. In this disclosure, the feed blending assembly solves the problem of easy stratification between ethanol and gasoline through a multi-stage mixing design. The dispersion holes in the first feed pipe and the long opening of the rotating tube achieve radial dispersion of the raw materials, the spiral blades promote axial stirring, and the mesh plate provides secondary dispersion to eliminate local concentration differences; inert gas bubbles enhance molecular collisions and accelerate fusion. This structure significantly shortens the mixing time, avoids phase separation, ensures uniform ethanol distribution to meet national standards, reduces subsequent circulating filtration processes, and improves production efficiency. This assembly achieves efficient premixing of ethanol gasoline raw materials through multi-stage dispersion and stirring synergy, laying the foundation for subsequent blending processes.

[0013] 2. In this disclosure, the rotating tube and transmission structure, through a dynamic dispersion design, solve the problem of poor raw material miscibility. A drive motor rotates the rotating tube at high speed, and ethanol is ejected at high speed through a long opening, forming a strong convective mixture with gasoline; the sealing layer ensures airtightness during rotation, preventing leakage. This structure utilizes centrifugal force to enhance the contact area and kinetic energy of the raw materials, promoting molecular diffusion. Combined with the pushing action of the spiral blades, this results in more uniform premixing, ensuring the quality of the final product and meeting the needs of large-scale production. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0015] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure; Figure 2 This is an isometric drawing of the present disclosure; Figure 3 This is an isometric sectional view of the present disclosure; Figure 4 This is another isometric sectional view of this disclosure; In the diagram: 1. Mixing tank; 2. Connecting flange; 3. Feeding and mixing assembly; 3-1. Fixing frame; 3-2. Transmission port; 3-3. First feed pipe; 3-4. Dispersion hole; 3-5. Rotating pipe; 3-6. Long opening; 3-7. Spiral blade; 3-8. Mesh plate; 3-9. Second feed pipe; 3-10. Sleeve; 3-11. Connecting pipe; 3-12. Pressure relief valve; 3-13. Dispersion pipe; 3-14. Air inlet pipe; 3-15. Drive motor; 3-16. Transmission wheel; 4. Sealing layer; 5. Flange. Detailed Implementation

[0016] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0017] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0018] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0019] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0020] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0021] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] like Figures 1-4 As shown, it illustrates an ethanol gasoline blending apparatus according to an embodiment of the present disclosure, comprising: The mixing tank 1 and the connecting flange 2 are located at the bottom of the mixing tank 1; Feeding and mixing component 3, wherein the feeding and mixing component 3 is disposed inside the mixing tank 1; The feeding and mixing assembly 3 includes a fixing frame 3-1, which is disposed on the top of the mixing tank 1. A transmission port 3-2 is provided on the top of the mixing tank 1. A first feeding pipe 3-3 is disposed inside the fixing frame 3-1, passing through the transmission port 3-2 and located inside the mixing tank 1. Several dispersing holes 3-4 are formed around the outer surface of the first feeding pipe 3-3. A rotating tube 3-5 is rotatably connected inside the transmission port 3-2, and is fitted onto the outside of the first feeding pipe 3-3. Several elongated openings 3-6 are vertically formed around the outer surface of the rotating tube 3-5. Spiral blades 3-7 are provided on the outer surface of the rotating tube 3-5. A perforated plate 3-8 is disposed inside the mixing tank 1. 8 is located at the lower end of the first feed pipe 3-3 and the rotating pipe 3-5. The top of the mixing tank 1 is provided with a second feed pipe 3-9. A pair of sleeves 3-10 are provided on one side of the fixed frame 3-1. A connecting pipe 3-11 is fixedly connected inside the sleeve 3-10. A pressure relief valve 3-12 is provided at the upper end of the connecting pipe 3-11. A dispersing pipe 3-13 is provided around the top of the mixing tank 1. An air inlet pipe 3-14 is installed on the top of the mixing tank 1. The air inlet pipe 3-14 is connected to the dispersing pipe 3-13. A drive motor 3-15 is provided on the top of the fixed frame 3-1. A transmission wheel 3-16 is provided at the output end of the drive motor 3-15 and the outside of the rotating pipe 3-5. The transmission wheels 3-16 are connected by belt drive.

[0023] In some examples, to achieve premixing of ethanol, gasoline, and nitrogen before their introduction and to provide uniform raw materials for subsequent blending, a feeding and blending assembly 3 is designed. This assembly includes a fixed frame 3-1 on the top of the blending tank 1, which is fixed by welding. A first feed pipe 3-3 vertically penetrates the transmission port 3-2 inside the assembly. Dispersion holes 3-4 are evenly distributed around the outer surface of the pipe, which can disperse and spray out one raw material (such as gasoline). A rotating tube 3-5 inside the transmission port 3-2 is rotatably fitted outside the first feed pipe 3-3 and is driven to rotate by a drive motor 3-15. The motor output is connected to a transmission wheel 3-16 outside the rotating tube 3-5 via a belt drive, forming a rotational drive structure. Long openings 3-6 around the outer surface of the rotating tube 3-5 are distributed axially and communicate with the interior, allowing another raw material (such as ethanol) to be thrown out radially. Spiral blades 3-7 on the outer surface rotate with the rotating tube 3-5, pushing the liquid downwards and creating a stirring effect. The perforated plate 3-8 inside the mixing tank 1 is horizontally fixed and located at the lower end of the first feed pipe 3-3 and the rotating pipe 3-5. It can perform secondary dispersion of the initially mixed raw materials to make the mixing more uniform. The second feed pipe 3-9 at the top of the mixing tank 1 is used to transport auxiliary raw materials. The connecting pipe 3-11 in the sleeve 3-10 on one side of the fixed frame 3-1 is connected to the inside of the mixing tank 1. The pressure relief valve 3-12 at the upper end can release excessive pressure inside the tank to ensure equipment safety. The dispersion pipe 3-13 around the top of the mixing tank 1 is connected to the air inlet pipe 3-14. The air inlet pipe 3-14 is connected to inert gases such as nitrogen. The nozzles on the bottom of the dispersion pipe 3-13 can spray the gas evenly, forming bubbles to disturb the liquid and enhance the mixing effect.

[0024] During operation, gasoline is sprayed out through the first feed pipe 3-3 via the dispersion hole 3-4, and ethanol is fed into the rotary tube 3-5 via the second feed pipe 3-9. The drive motor 3-15 drives the rotary tube 3-5 to rotate, and the ethanol is radially ejected through the long opening 3-6, initially mixing with the gasoline. The spiral blades 3-7 push the mixture downwards, colliding with gas bubbles ejected from the dispersion pipe 3-13 during the process, further mixing it. The mixture is further dispersed when it flows through the perforated plate 3-8, ultimately forming a uniform premix, which is then fed into subsequent blending equipment. The combination of the rotary tube 3-5 and the spiral blades 3-7 achieves radial dispersion and axial stirring of the raw materials, improving mixing efficiency. The staggered distribution of the dispersion hole 3-4 and the long opening 3-6 expands the contact area of ​​the raw materials, promoting uniform mixing. The secondary dispersion of the perforated plate 3-8 eliminates local concentration differences. The disturbance of the inert gas enhances intermolecular collisions and accelerates fusion. The pressure relief valve 3-12 ensures stable pressure inside the tank and avoids safety hazards. This component achieves efficient premixing of ethanol gasoline feedstock through multi-stage dispersion and stirring, laying the foundation for subsequent blending processes.

[0025] For example, such as Figure 3 As shown, both the first feed pipe 3-3 and the second feed pipe 3-9 are equipped with flanges 5 at their upper ends.

[0026] In some examples, the flanges 5 at the upper ends of the first feed pipe 3-3 and the second feed pipe 3-9 are bolted to the flanges of the external raw material conveying pipe. The flanges 5 ensure a tighter pipe connection, effectively preventing leakage of raw materials during transport and guaranteeing that raw materials such as ethanol and gasoline enter the blending tank 1 in precise proportions. Simultaneously, the flange connection facilitates pipe installation, disassembly, and maintenance. When pipe replacement or blockage clearing is required, the connection can be quickly separated, improving equipment maintenance efficiency and adapting to the needs of continuous industrial production.

[0027] For example, such as Figure 3 As shown, a pair of sealing layers 4 are provided on the outer surface of the rotating tube 3-5, and the sealing layers 4 are respectively sealed and attached to the inner and outer surfaces of the top of the mixing tank 1.

[0028] In some examples, a pair of sealing layers 4 on the outer surface of the rotating tube 3-5 are made of oil-resistant rubber and are tightly bonded to the inner and outer surfaces of the top of the mixing tank 1, respectively. The inner sealing layer 4 prevents the mixed raw materials in the mixing tank 1 from leaking upwards along the gap between the rotating tube 3-5 and the transmission port 3-2, while the outer sealing layer 4 prevents external impurities from entering the tank and contaminating the raw materials. When the sealing layer 4 rotates synchronously with the rotating tube 3-5, it always maintains a good sealing state, which does not affect the normal operation of the rotating tube 3-5, and ensures stable pressure inside the tank, thus guaranteeing the safety of the premixing process and the purity of the raw materials.

[0029] For example, such as Figure 3 As shown, the dispersion pipe 3-13 has a circular structure.

[0030] In some examples, the dispersion pipe 3-13 has a ring-shaped structure, encircling the top of the blending tank 1, with evenly distributed nozzles on the bottom surface. This structure allows the inert gas to be sprayed from the outer perimeter of the tank wall towards the center, and the resulting bubbles can diffuse evenly throughout the entire tank space, fully contacting and colliding with the falling raw materials. The ring-shaped structure ensures that there are no dead zones in the gas spray within the tank, enhancing the disturbance effect on the raw materials, promoting more complete integration of ethanol and gasoline molecules, further improving the uniformity of the premix, and providing a better foundation for subsequent blending processes.

[0031] In actual use: gasoline is sprayed out through the dispersion hole 3-4 of the first feed pipe 3-3, and ethanol is fed into the rotary tube 3-5 through the second feed pipe 3-9. The drive motor 3-15 drives the rotary tube 3-5 to rotate through the transmission wheel 3-16. The ethanol is radially thrown out through the long port 3-6 and initially mixed with the gasoline. The spiral blades 3-7 push the mixture downward, while the air intake pipe 3-14 sends inert gas into the annular dispersion pipe 3-13. The evenly sprayed bubbles further agitate the mixture. The mixture is further dispersed by the mesh plate 3-8 to form a uniform premix. The pressure relief valve 3-12 balances the pressure in the tank. The entire process achieves efficient premixing of ethanol and gasoline, laying the foundation for subsequent blending without the need for additional stirring time.

[0032] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. An apparatus for blending ethanol gasoline, characterized in that, include: A mixing tank (1) and a connecting flange (2), wherein the connecting flange (2) is disposed at the bottom of the mixing tank (1); Feeding and mixing assembly (3), wherein the feeding and mixing assembly (3) is disposed inside the mixing tank (1); The feeding and mixing assembly (3) includes a fixing frame (3-1), which is located on the top of the mixing tank (1). A transmission port (3-2) is provided on the top of the mixing tank (1). A first feeding pipe (3-3) is provided inside the fixing frame (3-1). The first feeding pipe (3-3) passes through the transmission port (3-2) and is located inside the mixing tank (1). A plurality of dispersion holes (3-4) are provided around the outer surface of the first feeding pipe (3-3).

2. The ethanol gasoline blending apparatus according to claim 1, characterized in that, A rotating tube (3-5) is rotatably connected inside the transmission port (3-2). The rotating tube (3-5) is fitted outside the first feed pipe (3-3). Several long openings (3-6) are vertically opened around the outer surface of the rotating tube (3-5).

3. The ethanol gasoline blending apparatus according to claim 2, characterized in that, The outer surface of the rotating tube (3-5) is provided with spiral blades (3-7), the inside of the mixing tank (1) is provided with a perforated plate (3-8), the perforated plate (3-8) is located at the lower end of the first feed pipe (3-3) and the rotating tube (3-5), and the top of the mixing tank (1) is provided with a second feed pipe (3-9).

4. The ethanol gasoline blending apparatus according to claim 3, characterized in that, A pair of sleeves (3-10) are provided on one side of the fixed frame (3-1). A connecting pipe (3-11) is fixedly connected inside the sleeve (3-10). A pressure relief valve (3-12) is provided at the upper end of the connecting pipe (3-11). A dispersing pipe (3-13) is provided around the top of the mixing tank (1).

5. The ethanol gasoline blending apparatus according to claim 4, characterized in that, An air inlet pipe (3-14) is installed on the top of the mixing tank (1). The air inlet pipe (3-14) is connected to the dispersion pipe (3-13). A drive motor (3-15) is installed on the top of the fixing frame (3-1). A transmission wheel (3-16) is provided on both the output end of the drive motor (3-15) and the outside of the rotating tube (3-5). The transmission wheels (3-16) are connected by belt drive.

6. The ethanol gasoline blending apparatus according to claim 3, characterized in that, Both the first feed pipe (3-3) and the second feed pipe (3-9) are equipped with flanges (5) at their upper ends.

7. The ethanol gasoline blending apparatus according to claim 2, characterized in that, A pair of sealing layers (4) are provided on the outer surface of the rotating tube (3-5), and the sealing layers (4) are respectively sealed and attached to the inner and outer surfaces of the top of the mixing tank (1).

8. The ethanol gasoline blending apparatus according to claim 4, characterized in that, The dispersion pipe (3-13) has a ring-shaped structure.

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