A rotary flotation device for reducing resistance of crude oil deposits and oil sands

Abstract

The present invention discloses a rotary flotation device for reducing resistance of crude oil deposited oil sands, and relates to the technical field of oil tank cleaning. The present invention comprises an outer shell, a power device and a rotating body, the outer shell comprises a conical shell, a guide sleeve is fixed at the large mouth end of the conical shell, a cylindrical shell is fixedly penetrated transversely in the conical shell, and an arc shell is fixedly connected between the cylindrical shell located outside the conical shell and the outer side of the conical shell. The present invention can guide the fluid into the rotating body through the outer shell, and when the fluid passes through the outer shell, the fluid can drive the turbine body to rotate, thereby driving the turbine shaft, the first-stage worm, the first-stage worm wheel, the second-stage worm wheel, the second-stage worm and the gear shaft to rotate, and the rotating body can be driven to rotate through the cooperation of the gear and the gear sleeve, and the high-speed injection of the fluid in the rotating body can comprehensively flush and clean the tank bottom, solving the problem of manual cleaning required after oil sand deposition in the existing storage tank.

Description

Technical Field

[0001] The invention belongs to the technical field of oil tank cleaning, and in particular relates to a crude oil deposited oil sand resistance reduction rotary flotation device. Background Art

[0002] In major oil fields, large tank sedimentation and sand removal devices are more widely used. However, when a large amount of mud, sand and other solid particles carried by the oil-water mixture settle to the bottom of the tank by gravity and deposit to a certain extent, it will seriously affect the separation efficiency of the sedimentation tank, and at the same time, problems such as a relative reduction in tank capacity will occur. Therefore, the sand must be removed in time.

[0003] To solve this problem, the tank could only be stopped periodically for manual cleaning. When cleaning the sedimentation tank, the tank was emptied and then manually rinsed with high-pressure water. This sand removal method has the following disadvantages:

[0004] 1. Because the sand in the oil in the tank will be deposited in the oil storage tank, the sand level will increase over time, seriously encroaching on the effective space of the storage tank.

[0005] 2. The sand in the oil in the tank will be deposited in the oil storage tank. If it is not removed in time, it will affect the quality of the purified oil and also bring difficulties to the sewage treatment in the next process.

[0006] 3. The sand in the oil in the tank will be deposited in the oil storage tank, and some of the sand will enter the gathering and transportation process, causing wear and tear on other equipment, and in serious cases affecting normal production.

[0007] 4. Conventional manual cleaning methods have the disadvantages of long cleaning time, high labor intensity, high operating costs, insecurity, environmental pollution caused by cleared oil sands, and difficulty in disposal.

[0008] Therefore, in order not to affect normal production operations, how to remove the sediment in the tank without stopping production has become one of the problems that many oil fields need to solve urgently. Summary of the invention

[0009] The object of the present invention is to provide a crude oil deposited oil sand resistance reduction rotary flotation device, which can guide the fluid into the rotating body through the outer shell, and when the fluid passes through the outer shell, the fluid can drive the turbine body to rotate, thereby driving the turbine shaft, the first-stage worm, the first-stage worm wheel, the second-stage worm wheel, the second-stage worm and the gear shaft to rotate, and the rotating body can be driven to rotate through the cooperation of the gear and the gear sleeve. The fluid in the rotating body is rotated and ejected at high speed, which can comprehensively flush and clean the tank bottom, and can improve the sand discharge and flushing effect of the tank body, solving the problem of manual cleaning required after oil sand deposition in the existing storage tank.

[0010] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0011] The present invention discloses a crude oil deposit oil sand drag reduction rotary flotation device, comprising an outer shell, a power device and a rotating body;

[0012] The outer shell comprises a conical shell, a guide sleeve is fixed to the large mouth end of the conical shell, a cylindrical shell is fixedly passed through the conical shell horizontally, an arcuate shell is fixedly connected between the position of the cylindrical shell outside the conical shell and the outside of the conical shell, and a central shell is fixedly connected to one side of the cylindrical shell inside the conical shell;

[0013] The power device comprises a primary worm, a primary worm wheel, a secondary worm wheel and a secondary worm;

[0014] The primary worm is rotatably connected to the center housing via a bearing, a turbine shaft is fixed to the top of the primary worm, a turbine body is fixed to the top of the turbine shaft, the secondary worm is rotatably connected to the cylindrical housing via a bearing, and the primary worm wheel is fixed to one end of the secondary worm and meshes with the primary worm;

[0015] A gear shaft is rotatably connected in the arc-shaped housing, the secondary worm gear is fixed at the top of the gear shaft, and the secondary worm gear is located at the other end of the secondary worm and meshes with the secondary worm;

[0016] A gear sleeve is fixed on the top of the rotating body, and the gear sleeve is rotatably connected with the guide sleeve through a bearing. A gear is fixed on the bottom of the gear shaft, and the gear is located on one side of the gear sleeve and meshes with the gear sleeve. A plurality of injection nozzles are annularly provided on the rotating body.

[0017] Furthermore, a cover body is fixed to one end of the cylindrical shell away from the conical shell by screws, and the end of the secondary worm is rotatably connected to the cover body by a shaft sleeve and a bearing.

[0018] Furthermore, the rotating body is a hollow shell structure, an inclined edge is fixed inside the rotating body and located above the plurality of injection nozzles, and a bottom plate is fixed inside the rotating body and located below the plurality of injection nozzles.

[0019] Furthermore, a mechanical seal is provided between the turbine shaft and the center housing, and a rotating seal ring is provided between the inner side of the lower portion of the gear sleeve and the peripheral side surface of the guide sleeve.

[0020] Furthermore, a reinforcement plate is fixed between the central shell and the inner wall of the conical shell.

[0021] Furthermore, a flange is provided on the side surface around the small opening end of the conical shell.

[0022] The present invention has the following beneficial effects:

[0023] 1. The present invention can guide the fluid into the rotating body through the outer shell. When the fluid passes through the outer shell, the fluid can drive the turbine body to rotate, thereby driving the turbine shaft, the first-stage worm, the first-stage worm wheel, the second-stage worm wheel, the second-stage worm and the gear shaft to rotate. The cooperation of the gear and the gear sleeve can drive the rotating body to rotate. The high-speed rotation of the fluid in the rotating body can comprehensively flush and clean the bottom of the tank, improve the sand removal and flushing effect of the tank body, solve the problem of manual cleaning required after oil sand deposition in the existing storage tank, improve the cleaning efficiency and cleaning effect of the oil tank, and reduce the use of manpower and material resources.

[0024] 2. The present invention uses liquid flow as a power source, does not require electricity, is safe and reliable, can be installed in the center of the tank, and can also be installed in the tank through the light-transmitting hole on the top of the tank to work, avoiding manual entry into the tank. It is safer when used, simple and convenient to install, and has low maintenance costs.

[0025] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0027] Figure 1 It is a structural schematic diagram of a crude oil deposited oil sand drag reduction rotary flotation device of the present invention;

[0028] Figure 2 It is a structural cross-sectional view of the present invention;

[0029] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0030] Figure 4 for Figure 2 Structural cross-section view at AA in the middle;

[0031] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0032] 1-outer shell, 2-power device, 3-rotating body, 101-conical shell, 102-guide sleeve, 103-cylindrical shell, 104-arc shell, 105-center shell, 106-gear shaft, 107-gear, 108-cover, 109-mechanical seal, 110-rotating seal ring, 111-reinforcement plate, 112-flange, 201-first-stage worm, 202-first-stage worm wheel, 203-secondary worm wheel, 204-secondary worm, 205-turbine shaft, 206-turbine body, 301-gear sleeve, 302-injection nozzle, 303-bevel edge, 304-bottom plate. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-4 As shown, the present invention is a crude oil sedimentation oil sand drag reduction rotary flotation device, comprising an outer shell 1, a power device 2 and a rotating body 3;

[0035] The outer shell 1 includes a conical shell 101, a guide sleeve 102 is fixed to the large end of the conical shell 101, a cylindrical shell 103 is fixedly passed through the conical shell 101, an arcuate shell 104 is fixedly connected between the cylindrical shell 103 located outside the conical shell 101 and the outer side of the conical shell 101, and a central shell 105 is fixedly connected to one side of the cylindrical shell 103 located inside the conical shell 101;

[0036] The power device 2 includes a primary worm 201, a primary worm wheel 202, a secondary worm wheel 203 and a secondary worm 204;

[0037] The primary worm 201 is rotatably connected to the center housing 105 via a bearing, a turbine shaft 205 is fixed to the top of the primary worm 201, a turbine body 206 is fixed to the top of the turbine shaft 205, the secondary worm 204 is rotatably connected to the cylindrical housing 103 via a bearing, and the primary worm wheel 202 is fixed to one end of the secondary worm 204 and meshes with the primary worm 201;

[0038] A gear shaft 106 is rotatably connected in the arc-shaped housing 104, a secondary worm gear 203 is fixed at the top of the gear shaft 106, and the secondary worm gear 203 is located at the other end of the secondary worm 204 and meshes with the secondary worm 204;

[0039] A gear sleeve 301 is fixed on the top of the rotating body 3, and the gear sleeve 301 is rotatably connected to the guide sleeve 102 through a bearing. A gear 107 is fixed to the bottom of the gear shaft 106, and the gear 107 is located on one side of the gear sleeve 301 and meshes with the gear sleeve 301. A plurality of injection nozzles 302 are annularly provided on the rotating body 3.

[0040] Among them Figure 4 As shown, a cover 108 is fixed to one end of the cylindrical shell 103 away from the conical shell 101 by screws, and an end of the secondary worm 204 is rotatably connected to the cover 108 by a shaft sleeve and a bearing.

[0041] Among them Figure 2 As shown, the rotating body 3 is a hollow shell structure, an inclined edge 303 is fixed in the rotating body 3 and located above the plurality of injection nozzles 302 , and a bottom plate 304 is fixed in the rotating body 3 and located below the plurality of injection nozzles 302 .

[0042] Among them Figure 2-3 As shown, a mechanical seal 109 is provided between the turbine shaft 205 and the center housing 105 , and a rotary seal ring 110 is provided between the inner side of the lower portion of the gear sleeve 301 and the peripheral side surface of the guide sleeve 102 .

[0043] Among them Figure 4 As shown, a reinforcing plate 111 is fixed between the central shell 105 and the inner wall of the conical shell 101 .

[0044] Among them Figure 1-2 As shown, a flange 112 is provided on the side surface around the small end of the conical shell 101.

[0045] The working principle of the present invention is as follows: the end of the outer shell 1 is connected to the circulating pump pipeline of the tank area through the flange 112, the fluid flows into the rotating body 3 through the end of the outer shell 1 and is guided into the rotating body 3 through the guide shell 102, the pressure energy in the rotating body 3 is converted into jet velocity energy, the fluid in the rotating body 3 is ejected at high speed through the injection nozzle 302, and at the same time, when the fluid passes through the outer shell 1, the fluid drives the turbine body 206 to rotate, thereby driving the turbine shaft 205, the first-stage worm 201, the first-stage worm wheel 202, the second-stage worm wheel 203, the second-stage worm 204 and the gear shaft 106 to rotate, and the rotating body 3 can be driven to rotate through the cooperation of the gear 107 and the gear sleeve 301, and the fluid in the rotating body 3 is ejected according to the rotation trajectory of the injection nozzle 302. When working, the injection nozzle 302 rotates slowly horizontally at 360 degrees, so that every part of the bottom of the tank is completely swept 360 degrees.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0047] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An application of a rotary flotation device in reducing resistance of crude oil deposited oil sands, characterized in that: The rotary flotation device comprises an outer shell (1), a power device (2) and a rotating body (3); The outer shell (1) comprises a conical shell (101), a guide sleeve (102) is fixed to the large opening end of the conical shell (101), a cylindrical shell (103) is fixedly passed through the conical shell (101) in a transverse direction, an arcuate shell (104) is fixedly connected between the position of the cylindrical shell (103) located outside the conical shell (101) and the outside of the conical shell (101), and a central shell (105) is fixedly connected to one side of the cylindrical shell (103) located inside the conical shell (101); The power device (2) comprises a primary worm (201), a primary worm wheel (202), a secondary worm wheel (203) and a secondary worm (204); The primary worm (201) is rotatably connected to the center housing (105) via a bearing, a turbine shaft (205) is fixed to the top of the primary worm (201), a turbine body (206) is fixed to the top of the turbine shaft (205), the secondary worm (204) is rotatably connected to the cylindrical housing (103) via a bearing, and the primary worm wheel (202) is fixed to one end of the secondary worm (204) and meshes with the primary worm (201); A gear shaft (106) is rotatably connected in the arc-shaped housing (104), the secondary worm wheel (203) is fixed to the top of the gear shaft (106), and the secondary worm wheel (203) is located at the other end of the secondary worm (204) and meshes with the secondary worm (204); A gear sleeve (301) is fixed to the top of the rotating body (3), the gear sleeve (301) is rotatably connected to the guide sleeve (102) via a bearing, a gear (107) is fixed to the bottom of the gear shaft (106), the gear (107) is located on one side of the gear sleeve (301) and meshes with the gear sleeve (301), and a plurality of injection nozzles (302) are provided in a ring shape on the rotating body (3).

2. The application of a rotary flotation device according to claim 1 in reducing resistance of crude oil deposited oil sands is characterized in that: A cover body (108) is fixed to one end of the cylindrical shell (103) away from the conical shell (101) via screws, and an end of the secondary worm (204) is rotatably connected to the cover body (108) via a shaft sleeve and a bearing.

3. The application of a rotary flotation device according to claim 1 in reducing resistance of crude oil deposited oil sands, characterized in that: The rotating body (3) is a hollow shell structure, an inclined edge (303) is fixed in the rotating body (3) at a position above the plurality of injection nozzles (302), and a bottom plate (304) is fixed in the rotating body (3) at a position below the plurality of injection nozzles (302).

4. The application of a rotary flotation device in reducing resistance of crude oil deposited oil sands according to claim 1 is characterized in that: A mechanical seal (109) is provided between the turbine shaft (205) and the center housing (105), and a rotating seal ring (110) is provided between the inner side of the lower portion of the gear sleeve (301) and the peripheral side surface of the guide sleeve (102).

5. The application of a rotary flotation device in reducing resistance of crude oil deposits and oil sands according to claim 1 is characterized in that: A reinforcing plate (111) is fixed between the central shell (105) and the inner wall of the conical shell (101).

6. The application of a rotary flotation device in reducing resistance of crude oil deposited oil sands according to claim 1 is characterized in that: A flange (112) is provided on the side surface around the small opening end of the conical shell (101).

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