Oil blending mixer

Abstract

The invention discloses a mixer for oil blending, comprising a mixing cylinder, a central tube, a plurality of upper arc plates and a plurality of lower arc plates; the central tube is vertically arranged in the cylinder, and a plurality of rows of jet flow channel groups connected with the inner cavity of the cylinder are arranged on the central tube from top to bottom, each row of the jet flow channel groups is composed of a plurality of arc flow channels penetrating the inner and outer walls of the central tube; the upper arc plate and the lower arc plate are long strip arc plates twisted along the diagonal line, and a plurality of guide holes are evenly arranged on the plate surface; the plurality of upper arc plates and the plurality of lower arc plates are evenly arranged on the upper and lower parts of the cylinder in a circumferential direction in a manner that their outer arc surfaces are inclined upward, and their inner arc surfaces are kept as water-facing surfaces and their outer arc surfaces form water-repelling surfaces; the mixer for oil blending has no movable components and can sequentially pass through the central tube and the guide plates to form turbulent stirring of different oils to be mixed in the cylinder, and the stirring efficiency is high; and the mixer has no movable components as a whole, so that the mixer is safe and reliable during use, and no external stirring power is required.

Description

Technical Field

[0001] The invention relates to the technical field of oil blending devices, and in particular to a mixer for oil blending. Background Art

[0002] Petroleum is refined by different methods to obtain various base oils, which cannot meet the national and industry quality standards. Several base oils need to be mixed and stirred evenly in a certain proportion, and additives with certain functions need to be added to make the quality indicators of the oil meet or exceed the standard requirements. At the same time, the blended oil will also show slight stratification during long-term storage due to the different densities of various base oils, so the oil needs to be stirred regularly.

[0003] There are various ways of mixing in the oil blending process, and the commonly used ones are mechanical mixing in the tank, pump circulation mixing, etc. In the pump circulation mixing, the oil in the oil tank is pumped out by a pump, and then enters the oil tank through a pipeline for mixing. In order to improve the mixing efficiency, methods such as adding a static mixer at the pump outlet and changing the inlet angle of the pipeline entering the oil tank can be used. Summary of the invention

[0004] The object of the present invention is to provide an oil blending mixer with high blending efficiency, high safety and reliability.

[0005] To this end, the technical solution of the present invention is as follows:

[0006] A mixer for oil blending, comprising a mixing cylinder with a hollow cavity, a central tube, a plurality of upper arc plates and a plurality of lower arc plates; wherein:

[0007] The mixing cylinder is provided with a dosing tube, multiple dosing tubes and a discharge tube; the central tube is vertically arranged, and is inserted and fixed in the cylinder through the through holes opened at the center of the top and bottom surfaces of the mixing cylinder; multiple rows of jet flow channel groups connected to the inner cavity of the cylinder are arranged at intervals from top to bottom on the side wall of the central tube, and each row of the jet flow channel group is composed of multiple arc flow channels opened from the inner wall of the central tube toward the outer wall of the central tube and in a clockwise or counterclockwise direction;

[0008] The upper arc plate and the lower arc plate are long strip arc plates twisted along the diagonal line, and a plurality of guide holes penetrating the inner arc surface and the outer arc surface are evenly distributed on the plate surface; wherein, a plurality of upper arc plates are evenly arranged on the upper part of the cylinder body along the circumferential direction with their outer arc surfaces inclined upward, and one long side edge of the upper arc plate is fixed on the inner wall of the cylinder body, so that the inner arc surface of the upper arc plate is adapted to the opening direction of each arc flow channel to form a water-facing surface, and the outer arc surface on the opposite side forms a water-receiving surface, and at the same time, the long side edge of the other side is The top angle is in a twisted state toward the outer arc surface, and the bottom angle is in a twisted state toward the inner arc surface; multiple lower arc plates are evenly distributed on the upper part of the cylinder along the circumferential direction with their inner arc surfaces inclined upward, and one long side edge is fixed on the inner wall of the cylinder, so that the inner arc surface of the lower arc plate is adapted to the opening direction of each arc-shaped flow channel to form a water-facing surface, and the outer arc surface on the opposite side forms a water-receiving surface, while the top angle of the other long side edge is in a twisted state toward the inner arc surface, and the bottom angle is in a twisted state toward the outer arc surface.

[0009] Furthermore, the dosing pipe is arranged at the top of the cylinder; the feeding pipe includes at least a first feeding pipe arranged on the upper side wall of the cylinder and a second feeding pipe arranged on the lower side wall of the cylinder, and the second feeding pipe is located below the first feeding pipe; the discharge pipe is arranged in the middle of the side wall of the cylinder on the opposite side of the first feeding pipe and the second feeding pipe.

[0010] Furthermore, the bottom edge of the upper arc plate is higher than the discharge pipe, and the top edge of the lower arc plate is lower than the discharge pipe.

[0011] Furthermore, the plurality of arc-shaped flow channels in each jet flow channel group are evenly distributed along the circumferential direction, and the four arc-shaped flow channels on each two adjacent rows of jet flow channel groups are staggered.

[0012] Furthermore, the aperture of the arc-shaped flow channel in each jet flow channel group gradually increases from both sides of the central tube to the middle of the central tube.

[0013] Furthermore, a plurality of upper arc plates and a plurality of lower arc plates are fixed on the inner wall of the cylinder in a staggered manner.

[0014] Furthermore, the diameter of the guide hole gradually decreases from the water-facing surface to the water-receiving surface, so that the oil passing through the guide holes of the upper arc plate / lower arc plate is accelerated in the process of passing through the guide holes.

[0015] Compared with the prior art, the oil blending mixer has no movable components and can sequentially pass through the central tube and the guide plate to form turbulent stirring of different oils to be mixed in the cylinder, with high stirring efficiency; and the mixer has no movable components as a whole, so that the mixer is safe and reliable during use, and no external stirring power is required. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic cross-sectional structure diagram of the mixer for oil blending of the present invention;

[0017] Figure 2 for Figure 1 AA section view;

[0018] Figure 3 for Figure 1 BB section view;

[0019] Figure 4 It is a structural schematic diagram of the upper arc plate of the oil blending mixer of the present invention;

[0020] Figure 5 It is a structural schematic diagram of the lower arc plate of the mixer for oil blending of the present invention;

[0021] Figure 6 It is a side axial cross-sectional view of the mixer for oil blending of the present invention;

[0022] Figure 7 is an axial cross-sectional view of the other side of the oil blending mixer of the present invention;

[0023] Figure 8 It is a working schematic diagram of the mixer for oil blending of the present invention. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments, but the following embodiments are by no means limiting the present invention in any way. It should be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. The terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0025] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] Example 1

[0028] like Figures 1 to 3 As shown, the oil blending mixer comprises a mixing barrel 1 with a hollow cavity, a central tube 2, four upper arc plates 3 and four lower arc plates 4; wherein,

[0029] The mixing barrel 1 is provided with a dosing pipe 6, a first dosing pipe 7, a second dosing pipe 8 and a discharge pipe 9 on the barrel; specifically, the dosing pipe 6 is arranged on the top of the barrel; the first dosing pipe 7 is arranged on the upper side wall of the barrel; the second dosing pipe 8 is arranged on the lower side wall of the barrel, and is located below the first dosing pipe 7; the discharge pipe 9 is arranged in the middle of the barrel side wall on the opposite side of the first dosing pipe 7 and the second dosing pipe 8;

[0030] The center tube 2 is vertically arranged, and is inserted and fixed in the cylinder body through the through-holes opened at the center of the top and bottom surfaces of the mixing cylinder 1; 23 rows of jet flow channel groups connected to the inner cavity of the cylinder body are arranged from top to bottom on the side wall of the center tube 2, and each row of the jet flow channel group consists of four arc flow channels 10 arranged horizontally and clockwise from the inner wall of the center tube 2 toward the outer wall of the center tube 2, and the four arc flow channels are evenly distributed along the circumferential direction; the four arc flow channels 10 on each two adjacent rows of the jet flow channel groups are staggered, so that the mixed oil pumped in at a certain flow rate from the port of the center tube 2 is sprayed into the inner cavity of the cylinder body through the arc flow channels 10 along the tangential direction, forming a clockwise swirl;

[0031] The upper arc plate 3 and the lower arc plate 4 are long arc plates twisted along the diagonal line, and 10 rows of guide hole groups penetrating the inner arc surface and the outer arc surface are evenly distributed on the plate surface along the long side direction, and each row of guide hole groups includes 2 guide holes 11; wherein the inner arc surface refers to the inner concave surface on the upper arc plate 3 and the lower arc plate 4, and the outer arc surface refers to the outwardly convex arc surface on the upper arc plate 3 and the lower arc plate 4;

[0032] like Figure 4 and Figure 6As shown, each upper arc plate 3 is turned counterclockwise from the vertical setting state of its long side to form an oblique setting state with the outer arc surface facing upward, and is evenly arranged on the upper part of the cylinder along the circumferential direction; one side of the long side of each upper arc plate 3 is fixed on the inner wall of the cylinder, so that the inner arc surface of the upper arc plate 3 is the water-facing surface and the outer arc surface is the water-repelling surface, that is, the inner arc surface faces the clockwise vortex formed by the oil product ejected from the arc-shaped flow channel 10; at the same time, the top angle of the other side of the long side of the upper arc plate 3 is in a twisted state toward the outer arc surface, and the bottom angle is in a twisted state toward the inner arc surface;

[0033] like Figure 5 and Figure 7 As shown, each lower arc plate 4 is flipped in the clockwise direction from the vertical setting state of its long side to form an oblique setting state with the inner arc surface facing upward, and is evenly distributed in the circumferential direction at the lower part of the cylinder; one side long side of each lower arc plate 4 is fixed on the inner wall of the cylinder, so that the inner arc surface of the lower arc plate 4 is the water-facing surface and the outer arc surface is the water-receiving surface, that is, the inner arc surface faces the clockwise vortex formed by the oil product ejected from the arc flow channel 10; at the same time, the top angle of the other side long side of the lower arc plate 4 is in a twisted state toward the inner arc surface, and the bottom angle is in a twisted state toward the outer arc surface.

[0034] In order to facilitate welding and fixing the upper arc plate 3 and the lower arc plate 4 to the inner wall of the cylinder, before welding and fixing the upper arc plate 3 and the lower arc plate 4 to the cylinder, the long side edges of the welding side are cut into arc-shaped cut surfaces adapted to the curvature of the inner wall of the cylinder and then welded and fixed.

[0035] As a preferred implementation scheme of this embodiment, four upper arc plates 3 and four lower arc plates 4 are fixed on the inner wall of the cylinder in a staggered manner; and the guide hole 11 is a variable diameter through hole, and its aperture gradually decreases from the water-facing surface (i.e., the side that receives the oil sprayed out from the center tube) to the water-receiving side (the side that does not receive the oil sprayed out from the center tube); at the same time, the bottom edge of the upper arc plate is higher than the discharge pipe, and the top edge of the lower arc plate is lower than the discharge pipe.

[0036] Example 2

[0037] The oil blending mixer comprises a mixing barrel 1 with a hollow cavity, a central tube 2, four upper arc plates 3 and four lower arc plates 4; wherein,

[0038] The mixing barrel 1 is provided with a dosing pipe 6, a first dosing pipe 7, a second dosing pipe 8 and a discharge pipe 9 on the barrel; specifically, the dosing pipe 6 is arranged on the top of the barrel; the first dosing pipe 7 is arranged on the upper side wall of the barrel; the second dosing pipe 8 is arranged on the lower side wall of the barrel, and is located below the first dosing pipe 7; the discharge pipe 9 is arranged in the middle of the barrel side wall on the opposite side of the first dosing pipe 7 and the second dosing pipe 8;

[0039] The center tube 2 is vertically arranged, and is inserted and fixed in the cylinder body through the through-holes opened at the center of the top and bottom surfaces of the mixing cylinder 1; 23 rows of jet flow channel groups connected to the inner cavity of the cylinder body are arranged from top to bottom on the side wall of the center tube 2, and each row of the jet flow channel group consists of four arc flow channels 10 arranged horizontally and counterclockwise from the inner wall of the center tube 2 toward the outer wall of the center tube 2, and the four arc flow channels are evenly distributed along the circumference, and the inner diameter of the two end ports of each arc flow channel 10 is slightly smaller than the inner diameter of the middle part; the four arc flow channels 10 on each two adjacent rows of the jet flow channel group are staggered, so that the mixed oil pumped from the port of the center tube 2 at a certain flow rate is sprayed into the inner cavity of the cylinder body through the arc flow channels 10 along the tangential direction;

[0040] The upper arc plate 3 and the lower arc plate 4 are long arc plates twisted along the diagonal line, and 10 rows of guide hole groups penetrating the inner arc surface and the outer arc surface are evenly distributed on the plate surface along the long side direction, and each row of guide hole groups includes 2 guide holes 11; wherein the inner arc surface refers to the inner concave surface on the upper arc plate 3 and the lower arc plate 4, and the outer arc surface refers to the outwardly convex arc surface on the upper arc plate 3 and the lower arc plate 4;

[0041] like Figure 4 and Figure 6 As shown, each upper arc plate 3 is turned clockwise from the vertical setting state of its long side to form an oblique setting state with the outer arc surface facing upward, and is evenly arranged on the upper part of the cylinder along the circumferential direction; one side of the long side of each upper arc plate 3 is fixed on the inner wall of the cylinder, so that the inner arc surface of the upper arc plate 3 is the water-facing surface and the outer arc surface is the water-receiving surface, that is, the inner arc surface faces the clockwise vortex formed by the oil product ejected from the arc-shaped flow channel 10; at the same time, the top angle of the other side of the long side of the upper arc plate 3 is in a twisted state toward the outer arc surface, and the bottom angle is in a twisted state toward the inner arc surface;

[0042] like Figure 5 and Figure 7 As shown, each lower arc plate 4 is flipped in the counterclockwise direction from the vertical setting state of its long side to form an oblique setting state with the inner arc surface facing upward, and is evenly distributed in the circumferential direction at the lower part of the cylinder; one side long side of each lower arc plate 4 is fixed on the inner wall of the cylinder, so that the inner arc surface of the lower arc plate 4 is the water-facing surface and the outer arc surface is the water-receiving surface, that is, the inner arc surface faces the clockwise vortex formed by the oil product ejected from the arc flow channel 10; at the same time, the top angle of the other side long side of the lower arc plate 4 is in a twisted state toward the inner arc surface, and the bottom angle is in a twisted state toward the outer arc surface.

[0043] In order to facilitate welding and fixing the upper arc plate 3 and the lower arc plate 4 to the inner wall of the cylinder, before welding and fixing the upper arc plate 3 and the lower arc plate 4 to the cylinder, the long side edges of the welding side are cut into arc-shaped cut surfaces adapted to the curvature of the inner wall of the cylinder and then welded and fixed.

[0044] Four upper arc plates 3 and four lower arc plates 4 are fixed on the inner wall of the cylinder in a staggered manner; the guide holes 11 opened in the upper arc plates 3 and the lower arc plates 4 are through holes with equal diameters.

[0045] The working principle of the oil blending mixer is:

[0046] like Figure 8 As shown, when blending oil products, first install the oil blending mixer between the pump 13 and the oil tank 12; specifically, the outlet of the pump 13 is connected to the two end ports 5 of the central tube 2 respectively through two oil pipelines, the discharge pipe 9 is connected to the liquid inlet end of the oil tank 12 through the oil pipeline, and the dosing pipe 6 is connected to the external additive tank through the drug adding pipeline, which is used to transport additives into the cylinder; the first feeding pipe 7 and the second feeding pipe 8 are connected to the oil storage tanks of different types of base oils through the oil pipeline, and can be used for blending oil products with different base oils. When the oil blending mixer is only used for mixing stratified oil products, the pipe openings of the first feeding pipe 7 and the second feeding pipe 8 are blocked; the liquid inlet end of the pump 13 is connected to the liquid outlet end of the oil tank 12 through the oil pipeline.

[0047] After the pipeline connection is completed, the pump 13 is turned on, so that the oil to be mixed in the oil tank 12 enters the central tube 2 through the booster of the pump 13, and is ejected through the multiple arc-shaped flow channels 10 of the central tube 2, so that the base oil to be mixed is ejected along the tangential direction and forms a vortex inside the mixing cylinder 1; in the vortex process, the base oil collides on the water-facing surfaces of the multiple upper arc plates 3 and the multiple lower arc plates 4 arranged on the inner wall of the cylinder, so that part of the fluid of the oil to be mixed is turned, and then the multiple upper arc plates 3 guide the liquid to the lower part, and the multiple lower arc plates 4 guide the liquid to the upper part, so as to promote the upper and lower mixing of the oil; at the same time, another part of the oil passes through the multiple upper arc plates 3 and the multiple lower arc plates 4 through the guide holes 11 and is thrown onto the cylinder wall to mix with the oil in the cylinder, or impacts the next upper arc plate 3 or lower arc plate 4; finally, it enters the oil tank 12 through the discharge pipe 9, and the mixing steps are repeated to finally achieve the blending of the oil field. Among them, as a preferred technical solution of the embodiment, when the guide hole 11 is a variable diameter hole, that is, the guide hole 11 has a large diameter on the water-facing surface and a small diameter on the back-water surface, the guide hole acts as an acceleration channel to accelerate the oil entering the guide hole, thereby impacting the next upper arc plate 3 or lower arc plate 4, realizing fluid diversion and mixing, and improving mixing efficiency.

[0048] The above embodiments are only used to further explain the present invention in detail, and are not used to limit the present invention. For those skilled in the art, the present invention may have various improvements and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A mixer for oil blending, characterized in that: It comprises a mixing cylinder (1) having a hollow cavity, a central tube (2), a plurality of upper arc plates (3) and a plurality of lower arc plates (4); wherein: The mixing barrel (1) is provided with a dosing pipe (6), a plurality of dosing pipes and a discharge pipe (9); the central pipe (2) is arranged vertically and is inserted and fixed in the barrel through through-holes provided at the center of the top and bottom surfaces of the mixing barrel (1); a plurality of rows of jet flow channel groups connected to the inner cavity of the barrel are provided on the side wall of the central pipe (2) from top to bottom at intervals, and each row of the jet flow channel groups is composed of a plurality of arc flow channels (10) provided from the inner wall of the central pipe (2) toward the outer wall of the central pipe (2) and in a clockwise or counterclockwise direction; The upper arc plate (3) and the lower arc plate (4) are long strip arc plates twisted along the diagonal line, and a plurality of flow guide holes (11) penetrating the inner arc surface and the outer arc surface are evenly arranged on the plate surface; wherein, the plurality of upper arc plates (3) are evenly arranged on the upper part of the cylinder body along the circumferential direction with their outer arc surfaces inclined upward, and one long side edge of the upper arc plate (3) is fixed on the inner wall of the cylinder body, so that the inner arc surface of the upper arc plate (3) is adapted to the opening direction of each arc flow channel (10) to form a water-facing surface, and the outer arc surface on the opposite side forms a water-receiving surface, and at the same time, the other side is The top angle of the long side edge is in a twisted state toward the outer arc surface, and the bottom angle is in a twisted state toward the inner arc surface; a plurality of lower arc plates (4) are evenly arranged on the upper part of the cylinder along the circumferential direction with their inner arc surfaces inclined upward, and one long side edge is fixed on the inner wall of the cylinder, so that the inner arc surface of the lower arc plate (4) is adapted to the opening direction of each arc-shaped flow channel (10) to form a water-facing surface, and the outer arc surface on the opposite side forms a water-receiving surface, while the top angle of the other long side edge is in a twisted state toward the inner arc surface, and the bottom angle is in a twisted state toward the outer arc surface.

2. The oil blending mixer according to claim 1, characterized in that: The dosing pipe (6) is arranged at the top of the cylinder; the feeding pipe at least comprises a first feeding pipe (7) arranged on the upper side wall of the cylinder and a second feeding pipe (8) arranged on the lower side wall of the cylinder, and the second feeding pipe (8) is located below the first feeding pipe (7); the discharge pipe (9) is arranged in the middle of the side wall of the cylinder on the opposite side of the first feeding pipe (7) and the second feeding pipe (8).

3. The oil blending mixer according to claim 2, characterized in that: The plurality of arc-shaped flow channels (10) in each jet flow channel group are evenly distributed in the circumferential direction, and the four arc-shaped flow channels (10) on each two adjacent rows of jet flow channel groups are staggered.

4. The oil blending mixer according to claim 1, characterized in that: The aperture of the arc-shaped flow channel (10) in each jet flow channel group gradually increases from both sides of the central tube (2) to the middle of the central tube (2).

5. The oil blending mixer according to claim 1, characterized in that: A plurality of upper arc plates (3) and a plurality of lower arc plates (4) are fixed on the inner wall of the cylinder in a mutually staggered manner.

6. The oil blending mixer according to claim 1, characterized in that: The aperture of the diversion hole (11) gradually decreases from the water-facing surface to the water-receiving surface.

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