Viscosity reducer on-site preparing and filling device

Abstract

The utility model relates to the technical field of petroleum, in particular to a viscosity reducer on-site preparing and filling device. The viscosity reducer on-site preparing and filling device comprises an operation tank, a rotationally-connected installation cylinder is installed on the inner bottom wall of the operation tank, the top of the installation cylinder extends out of the top of the operation tank, a rotationally-connected lead screw is installed in the installation cylinder, and two opposite threaded sections are arranged on the lead screw; each threaded section is provided with a blade assembly used for stirring viscosity reducer raw materials, the installation cylinder is further sleeved with a press-fit piston in sliding connection, and a threaded rod used for driving the press-fit piston to slide up and down along an inner cavity of the operation tank is installed in the operation tank. The operation tank in the viscosity reducer on-site preparation and filling device not only can be used as a stirring container, but also can be used as a filling container, so that the space occupied by the device during the on-site preparation of the viscosity reducer is reduced, and the device is convenient for workers to carry and operate.

Description

Technical Field

[0001] The utility model relates to the technical field of petroleum, in particular to an on-site preparation and filling device for a viscosity reducer. Background Art

[0002] When the concentration of oil is high, it is necessary to add viscosity reducers for processing. Viscosity reducers are organic polymers with inorganic affinity groups. They have the characteristics of wide application range, high viscosity reduction rate, low aging degree, high temperature resistance, salt resistance, calcium resistance, increased mechanical drilling speed, long maintenance cycle, non-toxicity and pollution-free. The on-site preparation and filling of viscosity reducers are commonly used processes in the fields of oil extraction and pipeline transportation. They are mainly used to reduce the viscosity of crude oil or heavy oil and improve fluidity.

[0003] Currently, the preparation and filling of viscosity reducers are handled in separate tanks, resulting in a large number of on-site equipment and a large space. Workers need to spend a lot of time and energy on installation and connection between pipelines, and also need to transfer the prepared viscosity reducer to the filling equipment, which is very cumbersome.

[0004] Therefore, it is necessary to provide a new on-site preparation and filling device for viscosity reducer to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an on-site preparation and filling device for a viscosity reducer.

[0006] The on-site preparation and filling device of the viscosity reducer provided by the utility model includes an operating tank, a rotatably connected mounting cylinder is installed on the inner bottom wall of the operating tank, and the top of the mounting cylinder extends out of the top of the operating tank, a rotatably connected lead screw is installed in the mounting cylinder, and the lead screw is provided with two opposite threaded sections, and each threaded section is equipped with a blade assembly for stirring the viscosity reducer raw material;

[0007] The blade assembly includes a threaded ring, which is sleeved on the threaded section and threadedly connected to the threaded section, and a stirring blade with a deflection adjustable angle is installed on the threaded ring;

[0008] The installation cylinder is also sleeved with a slidingly connected pressing piston, and a threaded rod is installed in the operating tank for driving the pressing piston to slide up and down along the inner cavity of the operating tank.

[0009] Preferably, the blade assemblies are provided in two groups and are symmetrically distributed on the lead screw, and the mounting cylinder is provided with a plurality of side cavities which are distributed in an annular manner and are arranged axially.

[0010] Preferably, a plurality of annularly distributed and rotatably connected outer support plates are installed on the threaded ring, the other end of each outer support plate is rotatably connected to a stirring blade, and the connecting end of the stirring blade is rotatably connected to the inner wall of the side cavity.

[0011] Preferably, the outer support plate is rotatably connected to the middle portion of the inner blade of the stirring blade.

[0012] Preferably, the bottom of the lead screw is rotatably connected to the inner bottom wall of the mounting cylinder, and the top of the lead screw extends out of the mounting cylinder and is fixedly mounted with a rotating disk.

[0013] Preferably, an outer gear ring is fixedly sleeved on the mounting cylinder located above the operating tank, a driving motor is fixedly mounted on the operating tank through a frame, and a gear is fixedly mounted on the output end of the driving motor, and the gear is meshed with the outer gear ring.

[0014] Preferably, the threaded rod is rotatably mounted on the inner bottom wall of the operating tank, and the other end of the threaded rod passes through the threaded through hole formed in the pressing piston and extends out of the operating tank.

[0015] Preferably, a feed hopper is installed on the side wall of the operating tank, and a filling pipe is installed on the bottom of the operating tank.

[0016] Compared with related technologies, the on-site preparation and filling device for viscosity reducer provided by the present invention has the following beneficial effects:

[0017] The operating tank in the utility model can be used not only as a stirring container but also as a filling container, thereby reducing the space occupied by the equipment when the viscosity reducer is prepared on site, and facilitating the transportation and operation of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a preferred embodiment of the on-site preparation and filling device for viscosity reducing agent provided by the utility model;

[0019] Figure 2 for Figure 1 The schematic diagram of the front structure of the operating tank when it is cut away is shown;

[0020] Figure 3 for Figure 2 Schematic diagram of the connection structure between the mounting cylinder and the blade assembly;

[0021] Figure 4 for Figure 3 The schematic diagram of the structure of the mounting cylinder and blade assembly shown;

[0022] Figure 5 for Figure 2 Schematic diagram of the structure of the press-fit piston shown.

[0023] Numbers in the figure: 1. Operating tank; 11. Feed hopper; 12. Filling pipe; 2. Mounting cylinder; 2a. Side chamber; 3. Lead screw; 31. Rotating disk; 4. Blade assembly; 41. Threaded ring; 42. Outer support plate; 43. Mixing blade; 5. Outer gear ring; 6. Driving motor; 61. Gear; 7. Pressing piston; 8. Threaded rod. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0026] See also Figures 1 to 5 The embodiment of the present invention provides an on-site preparation and filling device for a viscosity reducing agent, which includes an operating tank 1, a mounting cylinder 2, a blade assembly 4 and a pressing piston 7.

[0027] In the embodiments of the present invention, please refer to Figures 1 to 5 A feed hopper 11 is installed on the side wall of the operating tank 1, and a filling pipe 12 is installed on the bottom of the operating tank 1. A rotatably connected mounting cylinder 2 is installed on the inner bottom wall of the operating tank 1, and the top of the mounting cylinder 2 extends out of the top of the operating tank 1. The mounting cylinder 2 is provided with a plurality of annularly distributed and axially arranged side cavities 2a, and a rotatably connected lead screw 3 is installed in the mounting cylinder 2, and the lead screw 3 is provided with two opposite thread segments, and each thread segment is equipped with a blade assembly 4 for stirring the viscosity reducer raw material;

[0028] The blade assembly 4 is provided with two groups and is symmetrically distributed on the screw 3. The blade assembly 4 includes a threaded ring 41, which is sleeved on the threaded segment and threadedly connected to the threaded segment. The threaded ring 41 is equipped with a stirring blade 43 with a deflection adjustable angle. Specifically, the threaded ring 41 is equipped with a plurality of annularly distributed and rotatably connected outer support plates 42. The other end of each outer support plate 42 is rotatably connected to a stirring blade 43. The outer support plate 42 is rotatably connected to the middle part of the inner blade of the stirring blade 43, and the connecting end of the stirring blade 43 is rotatably connected to the inner wall of the side cavity 2a.

[0029] The bottom of the lead screw 3 is rotatably connected to the inner bottom wall of the mounting cylinder 2, and the top of the lead screw 3 extends out of the mounting cylinder 2 and is fixedly mounted with a rotating disk 31. An outer gear ring 5 is fixedly sleeved on the mounting cylinder 2 located above the operating tank 1. A drive motor 6 is fixedly mounted on the operating tank 1 through a frame, and a gear 61 is fixedly mounted on the output end of the drive motor 6, which is meshed with the outer gear ring 5.

[0030] It should be noted that: the filling pipe 12 is connected to the pipeline of the oil well filling system, and a solenoid valve is installed on the filling pipe 12. Subsequently, the raw materials for preparing the viscosity reducer are injected into the operating tank 1 through the feed hopper 11, and the rotating disk 31 is rotated to drive the screw 3 to rotate. At this time, the two sets of blade assemblies 4 on the screw 3 are screwed out of the mounting cylinder 2. Specifically, when the screw 3 rotates, the threaded ring 41 moves along the threaded section toward the rotational connection between the stirring blade 43 and the mounting cylinder 2. At this time, the outer support plate 42 on the threaded ring 41 pushes the stirring blade 43 away from the side cavity 2a and opens it; the drive motor 6 is turned on to drive the gear 61 to rotate. Since the gear 61 is meshed with the outer gear ring 5, the opened stirring blade 43 quickly stirs the raw materials, thereby promoting the formation of the viscosity reducer;

[0031] When the viscosity reducer is fully stirred, the drive motor 6 is turned off, and then the rotating disk 31 is reversed to drive the screw 3 to reverse, so that when the screw 3 rotates, the threaded ring 41 moves along the thread segment in the direction away from the rotation connection of the stirring blade 43, so that the stirring blade 43 rotates back into the side cavity 2a.

[0032] In this embodiment, when the stirring blade 43 is retracted to the maximum extent, the stirring blade 43 rotates back into the side chamber 2a.

[0033] In this embodiment, in order to avoid the synchronous rotation of the mounting cylinder 2 when the screw 3 is rotated, an electromagnetic brake is added to the drive motor 6. Therefore, after the drive motor 6 is powered off, the brake automatically clamps or locks the shaft, so that the motor shaft remains in the current position and is not moved. When the drive motor 6 is restarted, the brake is released and the drive motor 6 resumes normal operation.

[0034] In the embodiments of the present invention, please refer to Figures 1 to 5 A slidingly connected pressing piston 7 is also sleeved on the mounting cylinder 2, and a threaded rod 8 is installed in the operating tank 1 for driving the pressing piston 7 to slide up and down along the inner cavity of the operating tank 1. The threaded rod 8 is rotatably mounted on the inner bottom wall of the operating tank 1, and the other end of the threaded rod 8 passes through the threaded through hole opened in the pressing piston 7 and extends out of the operating tank 1.

[0035] It should be noted that: after the viscosity reducer is prepared, the solenoid valve on the filling pipe 12 is opened and the threaded rod 8 is rotated. Since the threaded rod 8 is threadedly connected to the pressing piston 7 and the pressing piston 7 is restricted by the mounting cylinder 2, the pressing piston 7 slides down along the threaded rod 8 and pressurizes the viscosity reducer below, so that the viscosity reducer is filled into the oil well through the filling pipe 12.

[0036] In this solution, the operating tank 1 can be used not only as a stirring container but also as a filling container, thereby reducing the space occupied by the equipment during on-site preparation of the viscosity reducer and facilitating transportation and operation by the staff.

[0037] In this embodiment, in order to facilitate driving the threaded rod 8, a motor for driving the threaded rod 8 to rotate can be added to the operating tank 1 to reduce manual labor.

[0038] It is worth noting that when the viscosity reducer is prepared in the operation tank 1 , the pressing piston 7 is raised to the highest point of the operation tank 1 to prevent the raw materials from falling onto the pressing piston 7 through the feed hopper 11 .

[0039] The working principle of the on-site preparation and filling device for viscosity reducer provided by the utility model is as follows:

[0040] The filling pipe 12 is connected to the pipeline of the oil well filling system, and a solenoid valve is installed on the filling pipe 12. Subsequently, the raw materials for preparing the viscosity reducer are injected into the operating tank 1 through the feed hopper 11, and the rotating disk 31 is rotated to drive the screw 3 to rotate. At this time, the two sets of blade assemblies 4 on the screw 3 are screwed out of the mounting cylinder 2. Specifically, when the screw 3 rotates, the threaded ring 41 moves along the threaded section toward the rotation connection between the stirring blade 43 and the mounting cylinder 2. At this time, the outer support plate 42 on the threaded ring 41 pushes the stirring blade 43 away from the side cavity 2a and opens it; the drive motor 6 is turned on to drive the gear 61 to rotate. Since the gear 61 is meshed with the outer gear ring 5, the opened stirring blade 43 quickly stirs the raw materials to promote the formation of the viscosity reducer. When the viscosity reducer is fully stirred, the drive motor 6 is turned off, and then the rotating disk 31 is reversed to drive the screw 3 to reverse. When the screw 3 rotates, the threaded ring 41 moves along the threaded section in the direction away from the rotation connection between the stirring blade 43, so that the stirring blade 43 rotates back into the side cavity 2a;

[0041] After the viscosity reducer is prepared, the solenoid valve on the filling pipe 12 is opened and the threaded rod 8 is rotated. Since the threaded rod 8 is threadedly connected to the pressing piston 7 and the pressing piston 7 is restricted by the mounting cylinder 2, the pressing piston 7 slides down along the threaded rod 8 and pressurizes the viscosity reducer below, so that the viscosity reducer is filled into the oil well through the filling pipe 12.

[0042] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0043] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A device for preparing and filling viscosity reducer on site, characterized in that: The invention comprises an operating tank (1), wherein a rotatably connected mounting cylinder (2) is mounted on the inner bottom wall of the operating tank (1), and the top of the mounting cylinder (2) extends out of the top of the operating tank (1); a rotatably connected lead screw (3) is mounted in the mounting cylinder (2), and the lead screw (3) is provided with two opposite thread segments, and each thread segment is mounted with a blade assembly (4) for stirring the viscosity reducer raw material; The blade assembly (4) comprises a threaded ring (41), the threaded ring (41) is sleeved on the threaded section and threadedly connected to the threaded section, and a stirring blade (43) with a deflection adjustable angle is mounted on the threaded ring (41); The mounting cylinder (2) is also sleeved with a slidingly connected pressing piston (7), and a threaded rod (8) is installed in the operating tank (1) for driving the pressing piston (7) to slide up and down along the inner cavity of the operating tank (1).

2. The viscosity reducing agent on-site preparation and filling device according to claim 1, characterized in that: The blade assemblies (4) are provided in two groups and are symmetrically distributed on the lead screw (3); the mounting cylinder (2) is provided with a plurality of annularly distributed and axially arranged side cavities (2a).

3. The viscosity reducing agent on-site preparation and filling device according to claim 2, characterized in that: A plurality of annularly distributed and rotatably connected outer support plates (42) are mounted on the threaded ring (41), and the other end of each outer support plate (42) is rotatably connected to a stirring blade (43), and the connection end of the stirring blade (43) is rotatably connected to the inner wall of the side cavity (2a).

4. The viscosity reducing agent on-site preparation and filling device according to claim 3, characterized in that: The outer support plate (42) is rotatably connected to the middle portion of the inner blade of the stirring blade (43).

5. The viscosity reducing agent on-site preparation and filling device according to claim 1, characterized in that: The bottom of the lead screw (3) is rotatably connected to the inner bottom wall of the mounting cylinder (2), and the top of the lead screw (3) extends out of the mounting cylinder (2) and is fixedly mounted with a rotating disk (31).

6. The viscosity reducing agent on-site preparation and filling device according to claim 1, characterized in that: An outer gear ring (5) is fixedly mounted on the mounting cylinder (2) located above the operating tank (1). A drive motor (6) is fixedly mounted on the operating tank (1) via a frame, and a gear (61) is fixedly mounted on the output end of the drive motor (6). The gear (61) is meshedly connected with the outer gear ring (5).

7. The viscosity reducing agent on-site preparation and filling device according to claim 1, characterized in that: The threaded rod (8) is rotatably mounted on the inner bottom wall of the operating tank (1), and the other end of the threaded rod (8) passes through a threaded through hole formed in the pressing piston (7) and extends out of the operating tank (1).

8. The viscosity reducing agent on-site preparation and filling device according to claim 1, characterized in that: A feed hopper (11) is installed on the side wall of the operating tank (1), and a filling pipe (12) is installed on the bottom of the operating tank (1).

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