Liquid drop generator for producing lightening agent for oil well cement

Abstract

The utility model discloses a liquid drop generator for producing lightening admixture for oil well cement, and relates to the technical field of glass bead production, the liquid drop generator comprises a shell and a swirler, a liquid storage part is fixedly arranged on the inner wall of the upper end of the shell, a spoiler is fixedly arranged on the lower side of the liquid storage part, the swirler is fixedly arranged on the lower side of the spoiler, and the swirler is fixedly arranged on the lower side of the spoiler. Two vertical plates are fixedly arranged in the middle of the lower end of the shell, an air outlet pipe is arranged between the upper ends of the two vertical plates, an air outlet cover is fixedly arranged on the upper side of the air outlet pipe, rotating rods are fixedly arranged on the two sides of the lower end of the air outlet pipe, and one end of each rotating rod is rotationally connected with the corresponding vertical plate. And a transmission mechanism for driving the rotating rod to rotate is arranged between the lower ends of the two vertical plates. The air blowing device can be shielded after being used, and residual glass liquid is prevented from dropping into the air pipe to cause blockage of the air pipe as much as possible.

Description

Technical Field

[0001] The utility model relates to the technical field of glass microbead production, in particular to a droplet generator used for producing a lightening agent for oil well cement. Background Art

[0002] When cementing oil and gas wells, lightening agents are often needed to obtain lightweight and high-strength cement for better cementing effect. There are three main types of lightening agents provided by the prior art: the first type is to reduce the density of cement slurry by increasing the water-cement ratio, such as bentonite; the second type is to reduce the density of cement slurry by its own low density, such as hollow microspheres; the third type is to reduce the density of cement slurry by inflating the cement slurry to form foam, such as air; hollow microspheres have better compressive resistance than the other two types, making the cement stronger, and in the production method of hollow microspheres, the droplet method has a higher yield due to the production of Hollow microspheres are relatively uniform in diameter and are therefore widely used. The principle is to pass liquid high-temperature glass through a droplet generator to form small droplets, which are then passed through a drying area and a foaming area connected thereto to form hollow glass microspheres. The droplet generators in the prior art are mostly high-temperature resistant atomizing nozzles, and the glass liquid is pressed into the atomizing nozzle under high pressure to form small droplets. However, this method requires frequent replacement of the atomizing nozzle, and the nozzle is very small and can easily be blocked by the glass liquid and cannot be used. The resulting glass microspheres are of small mass and are therefore easily affected by airflow and cannot quickly settle to the drying area, affecting work efficiency.

[0003] Among them, announcement number CN209872759U discloses a droplet generator for the production of lightening agent for oil well cement, including an atomizer and a hot air pipe. The atomizer is based on the principle of a cyclone. Under a certain pressure, the glass liquid enters the cyclone tangentially, and shrinks near the nozzle due to the restriction of the wall surface, and swirls outward from the nozzle to form a liquid film. After the liquid film is broken, small droplets are formed. The small droplets form hollow glass micro beads after the subsequent processing section. The function of the hot air pipe is to blow air to the next processing section to accelerate the movement of the glass droplets to the next processing section. At the same time, the airflow generated by the hot air pipe will cause the gas flow rate on both sides of the liquid film to be different, thereby accelerating the breakage of the liquid film. There are still defects in this technical solution:

[0004] In this technical solution, since the air duct is arranged directly below the cyclone, some glass liquid will remain at the nozzle of the cyclone after use. The remaining glass liquid will drip into the air duct, causing the air duct to be blocked, affecting the next use of the equipment. Utility Model Content

[0005] In view of the above problems existing in the existing droplet generator used for producing lightening agent for oil well cement, the utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a droplet generator for the production of lightening agents for oil well cement, which solves the problem that in the droplet generator for the production of lightening agents for oil well cement in the prior art, since the air duct is arranged directly below the cyclone, some glass liquid will remain at the nozzle of the cyclone after use, and the residual glass liquid will drip into the air duct, causing the air duct to be blocked, thereby affecting the next use of the equipment.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A droplet generator for producing a lightening agent for oil well cement comprises a shell and a cyclone, wherein a liquid storage portion is fixedly provided on the inner wall of the upper end of the shell, a baffle is fixedly provided on the lower side of the liquid storage portion, the cyclone is fixedly provided on the lower side of the baffle, two vertical plates are fixedly provided inside the middle part of the lower end of the shell, an air outlet pipe is provided between the upper ends of the two vertical plates, an air outlet hood is fixedly provided on the upper side of the air outlet pipe, rotating rods are fixedly provided on both sides of the lower end of the air outlet pipe, one end of the rotating rod is rotatably connected to the corresponding vertical plate, and a transmission mechanism for driving the rotating rod to rotate is provided between the lower ends of the two vertical plates.

[0009] Preferably, the transmission mechanism includes a V-shaped hose and a slider, the lower end side walls of the two vertical plates are each provided with a strip opening, the two sliders are slidably arranged inside the corresponding slide grooves, a rotating tube is rotatably arranged between the two sliders, the front end of the rotating tube extends to the outside of the slider, the V-shaped hose is arranged between the rotating tube and the air outlet pipe, the two ends of the V-shaped hose are respectively connected to the corresponding rotating tube and the air outlet pipe, a sliding rod is fixedly arranged inside the two strip openings, the slider is movably sleeved on the sliding rod, the rod wall of the sliding rod is movably sleeved with a spring, and the two ends of the spring are respectively fixedly connected to the lower side of the corresponding slider and the inner wall of the strip opening.

[0010] Preferably, a guide plate is fixedly provided on one side of the air outlet cover.

[0011] Preferably, both sides of the strip-shaped opening are provided with limiting grooves, and both sides of the sliding block are fixedly provided with limiting blocks, and the limiting blocks on both sides are slidably connected to the corresponding limiting grooves respectively.

[0012] Preferably, the surface of the guide plate is coated with a waterproof coating.

[0013] Preferably, the inner wall of the V-shaped hose is coated with a high temperature resistant coating.

[0014] Preferably, the rear end of the rotating tube is sealed.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] The utility model introduces hot air into the rotating tube, and the hot air flows into the V-shaped hose, so that the V-shaped hose is inflated, and then the V-shaped hose is straightened. During this period, the rotating tube rotates, and the lower end of the V-shaped hose presses the slider downward due to the straightening. At the same time, the upper end of the V-shaped hose drives the air outlet pipe to rotate with the rotating rod as the axis due to the straightening, so that the air outlet pipe rotates to a vertical state, that is, the air blowing work can be carried out. After use, there is no gas in the V-shaped hose. At this time, the spring elastic force pushes the slider to move upward and reset, that is, the V-shaped hose is reset to a V shape. During this period, the upper end of the V-shaped hose drives the air outlet pipe to rotate and reset with the rotating rod as the axis to an inclined state, so that the upper end of the air outlet pipe deviates from the bottom of the cyclone. In addition, due to the provision of the guide plate, it can effectively prevent residual glass liquid from dripping into the air outlet pipe to cause the air outlet pipe to be blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the structure of a droplet generator for producing a lightening agent for oil well cement proposed by the utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the internal structure;

[0020] Figure 3 for Figure 2 A schematic diagram of the structure of the local A part;

[0021] Figure 4 for Figure 3 A perspective view of the middle slider.

[0022] Description of reference numerals:

[0023] 1. Shell; 2. Liquid storage part; 3. Baffle; 4. Cyclone; 5. Vertical plate; 6. Air outlet pipe; 7. Air outlet cover; 8. Rotating rod; 9. Guide plate; 10. Sliding block; 11. Rotating tube; 12. V-shaped hose; 13. Sliding rod; 14. Spring; 15. Limit block. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] The utility model embodiment discloses a liquid droplet generator used for producing a lightening agent for oil well cement.

[0026] Reference Figure 1-4 A droplet generator for producing a lightening agent for oil well cement comprises a shell 1 and a cyclone 4. A liquid storage portion 2 is fixedly arranged on the inner wall of the upper end of the shell 1, a baffle plate 3 is fixedly arranged on the lower side of the liquid storage portion 2, and the cyclone 4 is fixedly arranged on the lower side of the baffle plate 3. Two vertical plates 5 are fixedly arranged inside the middle part of the lower end of the shell 1, an air outlet pipe 6 is arranged between the upper ends of the two vertical plates 5, an air outlet cover 7 is fixedly arranged on the upper side of the air outlet pipe 6, and rotating rods 8 are fixedly arranged on both sides of the lower end of the air outlet pipe 6, and one end of the rotating rod 8 is rotatably connected to the corresponding vertical plate 5.

[0027] Reference Figure 1-4 A transmission mechanism for driving the rotating rod 8 to rotate is arranged between the lower ends of the two vertical plates 5, and the transmission mechanism includes a V-shaped hose 12 and a slider 10. The lower end side walls of the two vertical plates 5 are provided with strip openings, and the two sliders 10 are slidably arranged inside the corresponding slide grooves. A rotating tube 11 is rotatably arranged between the two sliders 10, and the front end of the rotating tube 11 extends to the outside of the slider 10. The V-shaped hose 12 is arranged between the rotating tube 11 and the air outlet pipe 6. The two ends of the V-shaped hose 12 are respectively connected with the corresponding rotating tube 11 and the air outlet pipe 6. The rear end of the rotating tube 11 is a sealing setting, that is, the wind can be stably introduced into the V-shaped hose 12. The inner wall of the V-shaped hose 12 is coated with a high-temperature resistant coating to improve the high-temperature resistance of the V-shaped hose 12. Slide bars 13 are fixedly arranged inside the two strip openings, and the slider 10 is movably sleeved with the slide bar 13. The rod wall of the slide bar 13 is movably sleeved with a spring 14, and the two ends of the spring 14 are respectively fixedly connected to the lower side of the corresponding slider 10 and the inner wall of the strip opening.

[0028] Reference Figure 1-4 A guide plate 9 is fixedly provided on one side of the air outlet cover 7, which can shield and guide the residual glass liquid. The surface of the guide plate 9 is coated with a waterproof coating to improve the waterproof performance of the guide plate 9.

[0029] Reference Figure 1-4 Limiting grooves are provided on both sides of the strip opening, and limiting blocks 15 are fixedly provided on both sides of the slider 10. The limiting blocks 15 on both sides are slidably connected to the corresponding limiting grooves respectively, so that the slider 10 can stably slide in the slide groove.

[0030] The upper end of the V-shaped hose 12 drives the air outlet pipe 6 to rotate about the rotating rod 8 as the axis and reset the air outlet pipe 6 to a vertical state, that is, the air blowing operation can be performed. After use, there is no gas support in the V-shaped hose 12. At this time, the elastic force of the spring 14 pushes the slider 10 to move upward and reset, that is, the V-shaped hose 12 is reset to a V shape. During this period, the upper end of the V-shaped hose 12 drives the air outlet pipe 6 to rotate about the rotating rod 8 as the axis and reset to an inclined state, so that the upper end of the air outlet pipe 6 deviates from the bottom of the cyclone 4. In addition, due to the provision of the guide plate 9, it can effectively prevent the residual glass liquid from dripping into the air outlet pipe 6 and causing the air outlet pipe 6 to be blocked.

[0031] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A droplet generator for producing a lightening agent for oil well cement, comprising a housing (1) and a cyclone (4), characterized in that: A liquid storage portion (2) is fixedly provided on the inner wall of the upper end of the shell (1), a baffle plate (3) is fixedly provided on the lower side of the liquid storage portion (2), the cyclone (4) is fixedly provided on the lower side of the baffle plate (3), two vertical plates (5) are fixedly provided inside the middle part of the lower end of the shell (1), an air outlet pipe (6) is provided between the upper ends of the two vertical plates (5), an air outlet cover (7) is fixedly provided on the upper side of the air outlet pipe (6), rotating rods (8) are fixedly provided on both sides of the lower end of the air outlet pipe (6), one end of the rotating rod (8) is rotatably connected to the corresponding vertical plate (5), and a transmission mechanism for driving the rotating rod (8) to rotate is provided between the lower ends of the two vertical plates (5).

2. The droplet generator for producing a lightening agent for oil well cement according to claim 1, characterized in that: The transmission mechanism comprises a V-shaped hose (12) and a slider (10). The lower end side walls of the two vertical plates (5) are each provided with a strip opening. The two sliders (10) are slidably arranged inside the corresponding slide grooves. A rotating tube (11) is rotatably arranged between the two sliders (10). The front end of the rotating tube (11) extends to the outside of the slider (10). The V-shaped hose (12) is arranged between the rotating tube (11) and the air outlet pipe (6). The two ends of the V-shaped hose (12) are respectively connected to the corresponding rotating tube (11) and the air outlet pipe (6). A sliding rod (13) is fixedly arranged inside the two strip openings. The slider (10) is movably sleeved with the sliding rod (13). A spring (14) is movably sleeved on the rod wall of the sliding rod (13). The two ends of the spring (14) are respectively fixedly connected to the lower side of the corresponding slider (10) and the inner wall of the strip opening.

3. The droplet generator for producing a lightening agent for oil well cement according to claim 1, characterized in that: A guide plate (9) is fixedly provided on one side of the air outlet cover (7).

4. The droplet generator for producing a lightening agent for oil well cement according to claim 2, characterized in that: Limiting grooves are provided on both sides of the strip-shaped opening, and limiting blocks (15) are fixedly arranged on both sides of the sliding block (10), and the limiting blocks (15) on both sides are slidably connected to the corresponding limiting grooves respectively.

5. The droplet generator for producing a lightening agent for oil well cement according to claim 3, characterized in that: The surface of the guide plate (9) is coated with a waterproof coating.

6. The droplet generator for producing a lightening agent for oil well cement according to claim 2, characterized in that: The inner wall of the V-shaped hose (12) is coated with a high temperature resistant coating.

7. The droplet generator for producing a lightening agent for oil well cement according to claim 2, characterized in that: The rear end of the rotating tube (11) is sealed.

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