Fuel additive filling device based on unpowered mechanical mixing
Through the unpowered mechanical mixing structure, the negative pressure siphon effect of fuel flow and the spiral paddle structure are utilized to solve the problems of high energy consumption, uneven mixing and safety hazards in the existing fuel additive filling technology, and achieve uniform mixing and flow rate matching of fuel and additives, which is suitable for flammable and explosive environments.
Patent Information
- Application Number
- CN202511035498.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-25
- Publication Date
- 2025-10-10
AI Technical Summary
Existing fuel additive filling technology has the problems of high energy consumption, uneven mixing, poor flow rate control and safety hazards, especially in flammable and explosive environments, which increases equipment costs and safety risks.
It adopts a non-powered mechanical mixing structure, using the negative pressure siphon effect generated by the fuel flow to drive the fuel additive into the mixer, and achieves uniform mixing of the fuel and additive through the spiral paddles and multi-branch injection pipe structure. The mixer is equipped with spiral paddles and bifurcated pipes to promote mixing.
It achieves unpowered and efficient mixing, ensures mixing uniformity and flow rate matching, reduces equipment costs and safety risks, and is suitable for flammable and explosive environments.
Smart Images
Figure CN120757061A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of fuel filling, and in particular relates to a fuel additive filling device based on unpowered mechanical mixing. Background Art
[0002] Existing fuel additive filling technologies mostly use external power drives (such as electric pumps, manual pumps, etc.) to inject additives, which has the following problems:
[0003] High energy consumption: Reliance on external power devices increases equipment costs and maintenance difficulty;
[0004] Uneven mixing: Static injection can easily lead to stratification of additives and fuel, resulting in low mixing efficiency;
[0005] Poor flow rate control: The additive flow rate does not match the fuel unloading speed, which can easily lead to additive residue or premature depletion;
[0006] Safety hazards: Complex power devices require additional explosion-proof designs in flammable and explosive environments, increasing safety risks.
[0007] Therefore, there is an urgent need for a fuel additive filling device that is power-free, low-cost and can achieve precise mixing. Summary of the Invention
[0008] The purpose of this invention is to address the technical deficiencies in the prior art and provide a fuel additive filling device based on unpowered mechanical mixing. This device achieves dynamic mixing of additives and fuel through a purely mechanical structure, ensuring mixing uniformity, flow rate matching, and operational safety.
[0009] The technical solutions adopted to achieve the purpose of this application are:
[0010] A fuel additive filling device based on unpowered mechanical mixing includes a base body, a fuel additive storage tank is arranged on the base body; wheels are arranged at the bottom of the base body; and a mixer is also arranged on the base body.
[0011] A fuel additive discharge channel is provided on the bottom side wall of the fuel additive storage tank, and a regulating valve, a check valve and an on-off valve are provided on the discharge channel; a hose is connected to the outlet end of the discharge channel;
[0012] The mixer comprises a main cylinder, with quick-connect structures provided at both ends of the main cylinder. One end serves as a fuel inlet for connecting to an output pipeline from an oil unloading well, and the other end serves as an outlet for connecting to an input pipeline from a tank storing a mixture of fuel and additives. A fuel additive inlet is provided on the wall of the main cylinder, and a multi-branched injection pipe is provided within the main cylinder, communicating with the fuel additive inlet. A spiral paddle structure is provided within the main cylinder, located on one side of the fuel inlet of the multi-branched injection pipe.
[0013] The multi-branch liquid injection pipe includes a central cavity and a plurality of branch pipes connected to the central cavity. The central cavity is located at the axial center of the main cylinder. The plurality of branch pipes are evenly spaced around the circumference of the central cavity and are arranged radially along the main cylinder. The outer end of one of the branch pipes is connected to the fuel additive inlet, and the outer ends of the remaining branch pipes are closed. A liquid outlet is provided on the wall of each branch pipe facing the mixer outlet. A plurality of recessed portions are provided on the wall of the branch pipe at intervals along the radial direction of the main cylinder.
[0014] In the above technical solution, a handle is provided at the rear of the base body.
[0015] In the above technical solution, the base frame body includes a bottom rectangular frame and a quadrangular pyramid frame connected to the bottom rectangular frame, and the fuel additive storage tank is fixedly installed on the top of the quadrangular pyramid frame; wheels are installed at the four corners of the bottom rectangular frame; a mixer placement rack is provided on the bottom rectangular frame, and the mixer is placed on the placement rack.
[0016] In the above technical solution, the fuel additive storage tank is cylindrical, and a filling port, a pressure relief valve and an exhaust valve are provided on the top of the fuel additive storage tank.
[0017] In the above technical solution, hooks are provided at the bottom of the fuel additive storage tank or on the base body. There are multiple hooks, which are evenly distributed along the circumference of the fuel additive storage tank or the base body, so that the hose can be coiled and stored on the hooks when not in use.
[0018] In the above technical solution, the fuel inlet end of the main cylinder of the mixer adopts a male end quick connector structure, and the discharge end adopts a C-type female end quick connector structure.
[0019] In the above technical solution, the fuel additive inlet of the mixer adopts a male end quick connector structure for connecting to a hose at the outlet end of the discharge channel of the fuel additive storage tank.
[0020] In the above technical solution, the spiral paddle structure of the mixer includes three inclined paddles, and the inclination angle of the paddles is 15°-30°.
[0021] In the above technical solution, a liquid outlet hole is also provided on the side wall of the central cavity of the mixer facing the outlet of the mixer.
[0022] In the above technical solution, the liquid outlet on the bifurcated pipe is located at the concave portion, and the flow velocity at the concave portion is greater than the flow velocity at the non-concave portion of the bifurcated pipe, thereby achieving a better siphon effect.
[0023] The beneficial effects of the present invention are as follows:
[0024] 1. This invention achieves efficient, unpowered mixing: During the unloading process, the negative pressure siphon effect generated by the fuel flow drives the fuel additive into the mixer. The mechanical mixing structure within the mixer achieves unpowered mechanical mixing of the fuel and fuel additive, and the mixed oil is discharged from the mixer's outlet into the target storage tank. This invention utilizes a fully mechanical structure to achieve mixing of the fuel additive and fuel, requiring no power input, thus effectively ensuring safety and suitability for flammable environments.
[0025] 2. The present invention provides a fuel additive discharge channel on the bottom sidewall of the fuel additive storage tank. The discharge channel is equipped with a regulating valve, a check valve, and an on-off valve. The on-off valve is used to control the opening and closing states of the discharge channel. When the on-off valve is open, the regulating valve is used to adjust the discharge flow rate of the fuel additive. The check valve prevents the oil from flowing back into the fuel additive storage tank.
[0026] 3. The mixer of the present invention is internally provided with a multi-branched injection pipe structure and a spiral paddle structure. After the fuel enters the mixer, the spiral paddle structure first forms a spiral fuel flow, which is then spirally mixed with the fuel additive output from the multi-branched injection pipe. The wall of the bifurcated pipe is not a straight pipe structure, but rather has multiple recessed portions spaced radially along the main cylinder. These recessed portions, spaced radially along the main cylinder, cause radial disturbances in the spiral fuel flow formed by the spiral paddle structure, thereby further promoting the mixing of the fuel and fuel additive. The liquid outlet on the bifurcated pipe is located in the recessed portion, and the flow rate in the recessed portion is greater than the flow rate in the non-recessed portion of the bifurcated pipe, thereby achieving a better siphon effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] In order to more clearly illustrate the technical solutions in the present application or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0028] Figure 1It is a structural schematic diagram of the fuel additive filling device based on unpowered mechanical mixing of the present invention.
[0029] Figure 2 Schematic diagram of the top structure of the fuel additive storage tank.
[0030] Figure 3 Schematic diagram of the bottom structure of the fuel additive storage tank.
[0031] Figure 4 Schematic diagram of the mixer.
[0032] Figure 5 for Figure 4 Left side view of the mixer shown.
[0033] Figure 6 for Figure 4 Right side view of the mixer shown.
[0034] Figure 7 A schematic diagram of the interior perspective of the mixer.
[0035] Figure 8 This is a physical picture of the mixer, showing its internal structure. DETAILED DESCRIPTION
[0036] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the present invention are further described below with reference to specific embodiments.
[0037] A fuel additive filling device based on unpowered mechanical mixing, see Figure 1 , including a base body 1, on which a fuel additive storage tank 2 is provided, and the fuel additive storage tank 2 is used to store fuel additives; wheels 3 are provided at the bottom of the base body 1, and a handle 4 is provided at the tail of the base body 1, so as to facilitate the movement of the entire fuel additive filling device; a mixer 5 is also provided on the base body 1, and the mixer is provided with a fuel inlet, a fuel additive inlet and a discharge outlet, and a mechanical mixing structure is provided inside the mixer. When in use, the fuel storage tank (unloading well) is connected to the fuel inlet of the mixer through a pipeline, and the fuel additive storage tank 2 is connected to the fuel additive inlet of the mixer through a pipeline. During the unloading process, the negative pressure siphon effect generated by the fuel flow is used to drive the fuel additive to be injected into the mixer. Through the mechanical mixing structure inside the mixer, unpowered mechanical mixing of the fuel and the fuel additive is realized, and the mixed oil is discharged from the discharge outlet of the mixer to the target storage tank.
[0038] Specifically, the base frame 1 may comprise a bottom rectangular frame 101 and a quadrangular pyramid frame 102 connected to the bottom rectangular frame 101. The fuel additive storage tank 2 is fixedly mounted on the top of the quadrangular pyramid frame 102. Wheels 3 are mounted at the four corners of the bottom rectangular frame 101. Furthermore, a mixer mounting rack 103 is provided on the bottom rectangular frame 101, on which the mixer 5 is placed.
[0039] The fuel additive storage tank 2 is cylindrical and preferably has a capacity of 30 L. Figure 2 and attached Figure 3 The top of the fuel additive storage tank 2 is provided with a filling port 201, a pressure relief valve 202 and an exhaust valve 203; the bottom side wall of the fuel additive storage tank 2 is provided with a fuel additive discharge channel, which is a metal channel tube. The discharge channel is provided with a regulating valve 204, a check valve 205 and an on-off valve 206, wherein the on-off valve 206 is used to control the opening and closing states of the discharge channel. When the on-off valve is open, the discharge flow rate of the fuel additive is adjusted by the regulating valve 204 (a throttling element, such as a throttling plate or a throttling ring, is installed in the regulating valve to achieve aperture adjustment. This method is highly flexible and the number and position of the throttling elements can be adjusted as needed to achieve the desired flow characteristics and control). The check valve 205 is used to prevent the oil from flowing back into the fuel additive storage tank 2.
[0040] The outlet of the discharge channel is connected to a hose (not shown). During use, the end of the hose is connected to the fuel additive inlet of the mixer. Furthermore, a hook 6 is provided at the bottom of the fuel additive storage tank 2 or on the base body 1. Multiple hooks, preferably 4-6, are evenly distributed around the circumference of the fuel additive storage tank 2 or base body 1, allowing the hose to be coiled and stored on the hook when not in use.
[0041] See attached Figure 4 -Attached Figure 7The mixer 5 includes a main cylinder 51, and quick connector structures are provided at both ends of the main cylinder 51 to facilitate quick connection with external pipelines. One end serves as a fuel inlet for connecting to the output pipeline of the oil unloading well, and the other end serves as a discharge outlet for connecting to the input pipeline of the tank storing the fuel and additive mixture. Preferably, the fuel inlet end of the main cylinder 51 adopts a male end quick connector structure 52, and the discharge outlet end of the main cylinder 51 adopts a C-type female end quick connector structure 53; a fuel additive inlet 54 is provided on the wall of the main cylinder 51, and the fuel additive inlet 54 is provided. A male end quick connector structure is used to connect the hose at the outlet end of the discharge channel of the fuel additive storage tank 2; a multi-branched liquid injection pipe 55 is provided inside the main cylinder 51, and the multi-branched liquid injection pipe 55 is connected to the fuel additive inlet 54, so that the fuel additive enters the mixer 5; a spiral paddle structure 56 is provided on the fuel inlet side of the main cylinder 51. Preferably, the spiral paddle structure includes three inclined paddles with an inclination angle of 15°-30°. The spiral paddle structure 56 is located on the fuel inlet side of the multi-branched liquid injection pipe 55 (see the attached Figure 7 ), after the fuel enters the mixer 5, a spiral fuel flow is first formed under the action of the spiral paddle structure 56, and then the spiral fuel flow is spirally mixed with the fuel additive output by the multi-branch injection pipe 55.
[0042] Furthermore, the multi-branched liquid injection pipe 55 includes a central cavity 551 and a plurality of branched pipes 552 connected to the central cavity 551. Figure 5 The number of the bifurcated pipes 552 can be three; the central cavity 551 is located at the axial center of the main cylinder 51, and the three bifurcated pipes 552 are evenly spaced and distributed in the circumference of the central cavity 551, and the three bifurcated pipes 552 are arranged along the radial direction of the main cylinder 51, the outer end of one bifurcated pipe 552 is connected to the fuel additive inlet 54, and the outer ends of the other two bifurcated pipes 552 are closed; a liquid outlet hole 5522 is provided on the pipe wall of the three bifurcated pipes 552 facing the discharge port of the mixer 5 (see attached Figure 6). Furthermore, a liquid outlet hole 5511 can also be provided on the side wall of the central cavity 551 facing the outlet of the mixer 5. During use, the fuel additive enters the multi-branched liquid injection tube 55 from the fuel additive inlet 54. Under the negative pressure siphon effect generated by the fuel flow, the fuel additive is stably discharged from the liquid outlet holes of the multi-branched liquid injection tube 55. Furthermore, the wall of the bifurcated tube 552 is not a straight tube structure. Instead, a plurality of recessed portions 5521 (i.e., constricted portions) are provided on the wall of the bifurcated tube at intervals along the radial direction of the main cylinder 51. These recessed portions, spaced radially along the main cylinder 51, cause radial disturbances in the spiral fuel flow formed by the spiral paddle structure 56, thereby further promoting the mixing of the fuel and fuel additive. Furthermore, the liquid outlet hole 5522 is located in the recessed portion 5521. The flow rate in the recessed portion 5521 is greater than the flow rate in the non-recessed portion of the bifurcated tube, thereby achieving a better siphon effect.
[0043] Furthermore, the number of the bifurcated pipes 552 of the multi-branched liquid injection pipe 55 can also be 4, forming a cross-shaped structure, see the attached Figure 8 , which is the actual picture.
[0044] For ease of explanation, spatial relative terms such as "upper", "lower", "left", and "right" are used in the embodiments to illustrate the relationship between one element or feature shown in the figures and another element or feature. It should be understood that, in addition to the orientation shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, the element described as being "under" other elements or features will be positioned "above" other elements or features. Therefore, the exemplary term "under" can include both upper and lower orientations. The device can be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here can be interpreted accordingly.
[0045] Moreover, relational terms such as “first” and “second” are merely used to distinguish one component from another having the same name, but do not necessarily require or imply any actual relationship or order between these components.
[0046] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.
Claims
1. A fuel additive filling device based on unpowered mechanical mixing, characterized by: The vehicle comprises a base body, a fuel additive storage tank is arranged on the base body; wheels are arranged at the bottom of the base body; and a mixer is also arranged on the base body; A fuel additive discharge channel is provided on the bottom side wall of the fuel additive storage tank, and a regulating valve, a check valve and an on-off valve are provided on the discharge channel; a hose is connected to the outlet end of the discharge channel; The mixer comprises a main cylinder, with quick-connect structures provided at both ends of the main cylinder. One end serves as a fuel inlet for connecting to an output pipeline from an oil unloading well, and the other end serves as an outlet for connecting to an input pipeline from a tank storing a mixture of fuel and additives. A fuel additive inlet is provided on the wall of the main cylinder, and a multi-branched injection pipe is provided within the main cylinder, communicating with the fuel additive inlet. A spiral paddle structure is provided within the main cylinder, located on one side of the fuel inlet of the multi-branched injection pipe. The multi-branch liquid injection pipe includes a central cavity and a plurality of branch pipes connected to the central cavity. The central cavity is located at the axial center of the main cylinder. The plurality of branch pipes are evenly spaced around the circumference of the central cavity and are arranged radially along the main cylinder. The outer end of one of the branch pipes is connected to the fuel additive inlet, and the outer ends of the remaining branch pipes are closed. A liquid outlet is provided on the wall of each branch pipe facing the mixer outlet. A plurality of recessed portions are provided on the wall of the branch pipe at intervals along the radial direction of the main cylinder.
2. The fuel additive filling device based on unpowered mechanical mixing according to claim 1, characterized in that: The base frame body includes a bottom rectangular frame and a quadrangular pyramid frame connected to the bottom rectangular frame. The fuel additive storage tank is fixedly installed on the top of the quadrangular pyramid frame; wheels are installed at the four corners of the bottom rectangular frame; a mixer placement rack is set on the bottom rectangular frame, and the mixer is placed on the placement rack.
3. The fuel additive filling device based on unpowered mechanical mixing according to claim 1, characterized in that: The fuel additive storage tank is cylindrical, and a filling port, a pressure relief valve and an exhaust valve are provided on the top of the fuel additive storage tank.
4. The fuel additive filling device based on unpowered mechanical mixing according to claim 1, characterized in that: A hook is provided on the bottom of the fuel additive storage tank or the base frame body. There are multiple hooks, which are evenly distributed along the circumference of the fuel additive storage tank or the base frame body.
5. The fuel additive filling device based on unpowered mechanical mixing according to claim 1, characterized in that: The fuel inlet end of the main cylinder of the mixer adopts a male end quick connector structure, and the discharge end adopts a C-type female end quick connector structure.
6. The fuel additive filling device based on unpowered mechanical mixing according to claim 1, characterized in that: The fuel additive inlet of the mixer adopts a male end quick connector structure, which is used to connect the hose at the outlet end of the discharge channel of the fuel additive storage tank.
7. The fuel additive filling device based on unpowered mechanical mixing according to claim 1, characterized in that: The spiral paddle structure of the mixer includes three obliquely arranged paddles.
8. The fuel additive filling device based on unpowered mechanical mixing according to claim 1, characterized in that: A liquid outlet hole is also provided on the side wall of the central cavity of the mixer facing the mixer outlet.
9. The fuel additive filling device based on unpowered mechanical mixing according to claim 1, characterized in that: The liquid outlet hole on the bifurcated pipe is located at the concave part.