Heavy fuel oil blending equipment

Abstract

The utility model relates to the technical field of oil blenders, and discloses heavy fuel oil blending equipment which comprises a mounting pipe, a first fixed flange fixedly mounted at the lower end of the mounting pipe, a first mechanical seal fixedly mounted in the mounting pipe, an inner pipe rotatably mounted in the first mechanical seal, and a pipe sleeve fixedly mounted on the inner pipe. A first rotating shaft is fixedly mounted at the top in the pipe sleeve. A first rotating shaft is arranged in a pipe sleeve, and an impeller is arranged at the lower end of the first rotating shaft, so that the impeller is driven to rotate by means of impact force of a medium, and then the first rotating shaft and the pipe sleeve are matched to drive an inner pipe to synchronously rotate with a second fixing flange, a second mechanical seal and a spray pipe; and the second bevel gear is in meshed connection with the first bevel gear, so that the spray pipe can revolve while revolving by taking the pipe sleeve as an axis, the mixing efficiency is improved, the service life of the whole device is effectively prolonged, and the maintenance period is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of oil blending technology, and in particular to a heavy fuel oil blending device. Background Technology

[0002] The oil blender is a special equipment for blending petrochemical liquids. The equipment is connected to the liquid inlet pipeline through the equipment flange. The side walls and top of its shell are equipped with spray nozzles. During operation, the oil is sprayed out from the nozzles evenly distributed around the perimeter, which can make the oil entering the tank fully mixed with the oil already in the tank.

[0003] A Chinese utility model patent with publication number CN207203879U discloses a spin-type oil blender. This application incorporates a spring. The weight of the liquid itself and the pressure it exerts on the nozzle cause the spring to pull. This allows the nozzle to repeatedly move up and down at different oil flow rates, spraying the oil at various angles. However, due to the uneven internal structure of the metal after repeated stretching, the stress transmission becomes unbalanced, forming stress concentration areas. This leads to metal fatigue. Micro-cracks within the metal gradually expand under continuous force, reducing the amount of material capable of transmitting stress. When the remaining portion can no longer transmit the load, the spring will fatigue and fail, potentially resulting in permanent deformation, weakened elasticity, or even breakage. This will render the nozzle unusable. Maintaining or replacing the nozzle or spring installed in the blending container is extremely inconvenient. Utility Model Content

[0004] The purpose of this invention is to provide a heavy fuel oil blending device that can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A heavy fuel oil blending device includes an installation pipe, a first fixed flange fixedly installed at the lower end of the installation pipe, a first mechanical seal fixedly installed inside the installation pipe, an inner pipe rotatably installed inside the first mechanical seal, a pipe sleeve fixedly installed on the inner pipe, a first rotating shaft fixedly installed at the top inside the pipe sleeve, a plurality of second fixed flanges fixedly installed on the outside of the pipe sleeve, a second mechanical seal fixedly installed on one side of the second fixed flange, a nozzle rotatably installed inside the second mechanical seal, a mounting seat fixedly installed inside the nozzle, and a second rotating shaft fixedly installed at the middle of one side of the mounting seat.

[0007] As a further preferred embodiment of this utility model, a mounting bracket is fixedly installed inside the first fixed flange and extends into the inner tube. A flow guide cone is fixedly installed on the mounting bracket, and a first bevel gear is fixedly installed on the flow guide cone. Multiple spline blocks are fixedly installed on the outer side of the inner tube. Two connection holes are opened on the inner side of the inner tube. By setting the first mechanical seal, the inner tube can be rotated, and the mixing container can be sealed with the external environment, ensuring that different media enter the mixing container through the inner tube, the sleeve, and the nozzle.

[0008] As a further preferred embodiment of this utility model, the inner side of the sleeve is provided with multiple spline grooves, and the sleeve located between two spline grooves is also threaded with a fixing screw. The sleeve is inserted into the inner tube, and the spline grooves are inserted into the corresponding spline blocks. The second fixing flange is connected to the inner cavity of the inner tube through the corresponding connecting hole. One end of the fixing screw abuts against the outer side of the inner tube. Multiple spline blocks are provided on the outer side of the inner tube, so that the sleeve is inserted into the inner tube by means of the spline grooves, which can realize the synchronous rotation of the inner tube and the sleeve.

[0009] As a further preferred embodiment of this utility model, the lower end of the first rotating shaft extends through the through hole in the guide cone block to the lower part of the guide cone block and is fixedly installed with an impeller. The guide cone block enables the medium entering the inner tube to impact and divert to the inner side of the inner tube, preventing turbulence caused by direct impact on the first rotating shaft. The high-pressure medium entering the inner tube can impact the impeller, thereby causing the impeller to rotate and drive the inner tube to rotate through the first rotating shaft, thereby driving the two nozzles to revolve around the inner tube and the sleeve as the axis.

[0010] As a further preferred embodiment of this utility model, the mounting base is provided with multiple liquid inlet channels on its outer side.

[0011] As a further preferred embodiment of this utility model, a second bevel gear is fixedly installed at the end of the second rotating shaft away from the mounting base, and the second bevel gear meshes with the first bevel gear. When the impeller drives the sleeve and inner tube to rotate through the first rotating shaft, the sleeve drives the second mechanical seal, the nozzle and mounting base, and the second rotating shaft to rotate synchronously through the two second fixed flanges. This causes the second bevel gear to rotate on the first bevel gear and drive the nozzle to rotate, which makes the medium entering the mixing container mix with the fuel oil more evenly.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In this invention, a first rotating shaft is installed inside the sleeve, and an impeller is installed at the lower end of the first rotating shaft. The impeller is driven to rotate by the impact force of the medium, which in turn drives the inner tube, the second fixed flange, the second mechanical seal, and the nozzle to rotate synchronously with the first rotating shaft and the sleeve. Simultaneously, the nozzle drives the second rotating shaft and the second bevel gear to rotate through the mounting base. The second bevel gear meshes with the first bevel gear, so that the nozzle can rotate around the sleeve as its axis and also rotate on its own axis, thereby improving the mixing efficiency and effectively increasing the service life of the entire device and extending the maintenance cycle. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the present invention;

[0016] Figure 3 This is a cross-sectional view of the inner tube and sleeve of this utility model.

[0017] In the diagram: 1. Mounting pipe; 2. First fixed flange; 3. First mechanical seal; 4. Inner pipe; 5. Pipe sleeve; 6. First rotating shaft; 7. Second fixed flange; 8. Second mechanical seal; 9. Nozzle; 10. Mounting base; 11. Second rotating shaft; 12. Spline block; 13. Connecting hole; 14. Spline groove; 15. Fixing screw; 16. First bevel gear; 17. Guide cone block; 18. Impeller; 19. Second bevel gear; 20. Mounting bracket. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] like Figures 1-3 As shown, the present invention provides a heavy fuel oil blending device, including an installation pipe 1, a first fixed flange 2 fixedly installed at the lower end of the installation pipe 1, a first mechanical seal 3 fixedly installed inside the installation pipe 1, an inner pipe 4 rotatably installed inside the first mechanical seal 3, a pipe sleeve 5 fixedly installed on the inner pipe 4, a first rotating shaft 6 fixedly installed at the top inside the pipe sleeve 5, a plurality of second fixed flanges 7 fixedly installed on the outside of the pipe sleeve 5, a second mechanical seal 8 fixedly installed on one side of the second fixed flanges 7, a nozzle 9 rotatably installed inside the second mechanical seal 8, a mounting seat 10 fixedly installed inside the nozzle 9, and a second rotating shaft 11 fixedly installed in the middle of one side of the mounting seat 10.

[0020] A mounting bracket 20 is fixedly installed inside the first fixed flange 2 and extends into the inner tube 4. A guide cone 17 is fixedly installed on the mounting bracket 20, and a first bevel gear 16 is fixedly installed on the guide cone 17. Multiple spline blocks 12 are fixedly installed on the outside of the inner tube 4. Two connection holes 13 are opened on the inside of the inner tube 4. By setting the first mechanical seal 3, the inner tube 4 can be rotated to achieve the sealing between the inside and outside environment of the mixing container, ensuring that different media enter the mixing container through the inner tube 4, the pipe sleeve 5, and the nozzle 9. The inner tube 4 has multiple spline grooves 14 on its side, and a fixing screw 15 is threadedly connected to a sleeve 5 located between two spline grooves 14. The sleeve 5 is inserted into the inner tube 4, and the spline grooves 14 are inserted into the corresponding spline blocks 12. The second fixing flange 7 communicates with the inner cavity of the inner tube 4 through the corresponding connecting hole 13. One end of the fixing screw 15 abuts against the outside of the inner tube 4. Multiple spline blocks 12 are set on the outside of the inner tube 4, so that the sleeve 5 is inserted into the inner tube 4 through the spline grooves 14, which can realize the synchronous rotation of the inner tube 4 and the sleeve 5. The lower end of shaft 6 extends through the through hole in the guide cone 17 to the area below the guide cone 17, where an impeller 18 is fixedly installed. The guide cone 17 allows the medium entering the inner tube 4 to impact and divert towards the inside of the inner tube 4, preventing turbulence caused by direct impact on the first rotating shaft 6. The high-pressure medium entering the inner tube 4 can impact the impeller 18, causing the impeller 18 to rotate and drive the inner tube 4 to rotate through the first rotating shaft 6, thereby driving the two nozzles 9 to revolve around the inner tube 4 and the sleeve 5 as the axis. Multiple liquid inlet channels are opened on the outer side of the mounting base 10. A second bevel gear 19 is fixedly installed at the end of the second shaft 11 away from the mounting base 10, and the second bevel gear 19 is meshed with the first bevel gear 16. When the impeller 18 drives the sleeve 5 and the inner tube 4 to rotate through the first shaft 6, the sleeve 5 drives the second mechanical seal 8, the nozzle 9 and the mounting base 10 and the second shaft 11 to rotate synchronously through the two second fixed flanges 7. This causes the second bevel gear 19 to rotate on the first bevel gear 16 and drive the nozzle 9 to rotate, which makes the medium entering the mixing container mix more evenly with the fuel oil.

[0021] It should be noted that this utility model is a heavy fuel oil blending device. The installation pipe 1 is fixedly installed at the top or bottom of the blending container via a first fixed flange 2. The end of the first fixed flange 2 opposite to the installation pipe 1 is connected to an external medium delivery pump via a pipeline. This allows the medium entering the blending container to be pumped into the inner pipe 4 under high pressure by the delivery pump. The medium entering the inner pipe 4 impacts the impeller 18, causing it to rotate. The impeller 18 then drives the first rotating shaft 6 to rotate, which in turn drives the pipe sleeve 5 to rotate. Multiple spline grooves 14 on the inner side of the pipe sleeve 5 are interlocked with multiple spline blocks 12 on the outer side of the inner pipe 4, allowing the pipe sleeve 5 to rotate. The inner tube 4 rotates synchronously, and the sleeve 5, through the two second fixed flanges 7 and the second mechanical seal 8 on the outside, drives the two nozzles 9 to revolve around the inner tube 4 and the sleeve 5 as the axis, so that the medium is sprayed into the mixing container in different directions. In addition, when the second mechanical seal 8 drives the nozzles 9 to rotate synchronously, the nozzles 9 drive the second bevel gear 19 to rotate on the guide cone block 17 through the mounting base 10 and the second rotating shaft 11, so that the second rotating shaft 11 rotates on its own axis, and then the second rotating shaft 11 drives the nozzles 9 to rotate in the second mechanical seal 8 through the mounting base 10, so that the spray angle of the nozzles 9 can be changed synchronously, so that the medium entering the mixing container is mixed with the fuel oil more evenly.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A heavy fuel oil blending device, characterized in that: The device includes an installation pipe (1), a first fixed flange (2) fixedly installed at the lower end of the installation pipe (1), a first mechanical seal (3) fixedly installed inside the installation pipe (1), an inner pipe (4) rotatably installed inside the first mechanical seal (3), a pipe sleeve (5) fixedly installed on the inner pipe (4), a first rotating shaft (6) fixedly installed at the top inside the pipe sleeve (5), a plurality of second fixed flanges (7) fixedly installed on the outside of the pipe sleeve (5), a second mechanical seal (8) fixedly installed on one side of the second fixed flange (7), a nozzle (9) rotatably installed inside the second mechanical seal (8), a mounting seat (10) fixedly installed inside the nozzle (9), and a second rotating shaft (11) fixedly installed in the middle of one side of the mounting seat (10).

2. The heavy fuel oil blending equipment according to claim 1, characterized in that: An mounting bracket (20) is fixedly installed inside the first fixed flange (2) and extends into the inner tube (4). A flow guide cone (17) is fixedly installed on the mounting bracket (20). A first bevel gear (16) is fixedly installed on the flow guide cone (17). Multiple spline blocks (12) are fixedly installed on the outside of the inner tube (4). Two connection holes (13) are opened on the inside of the inner tube (4).

3. The heavy fuel oil blending equipment according to claim 2, characterized in that: The inner side of the sleeve (5) is provided with multiple spline grooves (14), and the sleeve (5) located between two spline grooves (14) is also threaded with a fixing screw (15). The sleeve (5) is inserted into the inner tube (4), and the spline grooves (14) are inserted into the corresponding spline blocks (12). The second fixing flange (7) is connected to the inner cavity of the inner tube (4) through the corresponding connecting hole (13). One end of the fixing screw (15) abuts against the outside of the inner tube (4).

4. The heavy fuel oil blending equipment according to claim 3, characterized in that: The lower end of the first rotating shaft (6) extends through the through hole in the guide cone (17) to the bottom of the guide cone (17) and is fixedly installed with an impeller (18).

5. A heavy fuel oil blending device according to claim 4, characterized in that: The mounting base (10) has multiple liquid inlet channels on its outer side.

6. A heavy fuel oil blending device according to claim 5, characterized in that: The second shaft (11) is fixedly mounted with a second bevel gear (19) at one end away from the mounting base (10), and the second bevel gear (19) meshes with the first bevel gear (16).

Images