Double-oil-chamber dustproof drilling rig oil tank

Abstract

The utility model belongs to the field of rig oil tank, concretely relates to a double oil cavity dustproof rig oil tank, which comprises an oil tank body, the oil tank body is divided into two oil storage cavities, one of which is a main oil storage cavity and the other is an auxiliary oil storage cavity; a main oil suction pipe and a main oil return pipe are installed in the main oil storage cavity, and an auxiliary oil suction pipe and an auxiliary oil return pipe are installed in the auxiliary oil storage cavity; an air bag is installed in the main oil storage cavity, the air nozzle of the air bag is connected with the air outlet of a first air cleaner on the oil tank body; a partition plate is installed between the main oil suction pipe and the main oil return pipe in the main oil storage cavity, a space is reserved between the partition plate and the top of the main oil storage cavity, a window is formed in the upper middle part of the partition plate, a filter screen is installed in the window, and the oil between the main oil suction pipe and the main oil return pipe is communicated through the filter screen; the double oil cavity dustproof rig oil tank solves the problems of single oil storage limitation, dust and small particles invading the inside of the oil tank through the breather valve, and impurity diffusion caused by oil suction and oil disturbance.

Description

Technical Field

[0001] This utility model belongs to the field of drilling rig oil tanks, specifically relating to a dual-oil-chamber dustproof drilling rig oil tank. Background Technology

[0002] As a core component of the hydraulic or lubrication system in drilling equipment, the design of the drilling rig oil tank directly affects the equipment's operating efficiency and reliability. However, existing drilling rig oil tanks have revealed the following key problems during long-term use:

[0003] I. Limitations of Single-Type Oil Storage: Traditional drilling rig oil tanks are typically designed with a single storage chamber, capable of storing only one type of oil. However, drilling equipment may require multiple oils to work together under different operating conditions, such as alternating use of hydraulic oil, lubricating grease, or diesel engine oil;

[0004] 2. Dust accumulation in the downhole environment; the drilling rig operates in a complex downhole environment, and is exposed to high dust, high humidity or mud splashing conditions for a long time; the existing oil tank filtration system is inadequate, causing dust and fine particles to enter the oil tank through the breather valve;

[0005] 3. Oil suction and inlet disturbances lead to the diffusion of impurities; the existing oil tank suction pipe design and oil inlet method have defects, which easily draw the settled impurities back into the system during the oil circulation process, aggravating the wear of pumps and valves; the inlet impact disturbance, when new oil is injected, directly impacts the bottom of the oil tank, stirring up the already settled contaminants, resulting in secondary oil contamination. Utility Model Content

[0006] This invention addresses the problems of existing drilling rig oil tanks, such as limitations in storing a single type of oil, dust and fine particles invading the tank through the breather valve, and the diffusion of impurities caused by oil intake and intake disturbances.

[0007] This utility model provides the following technical solution: a dual-oil-chamber dustproof drilling rig oil tank, including an oil tank body, the oil tank body being divided into two oil storage chambers, one of which is a main oil storage chamber and the other is a secondary oil storage chamber;

[0008] The main oil storage chamber is equipped with a main oil suction pipe and a main oil return pipe, and the auxiliary oil storage chamber is equipped with an auxiliary oil suction pipe and an auxiliary oil return pipe.

[0009] An air bladder is installed inside the main oil storage chamber, and the air nozzle of the air bladder is connected to the air outlet of the first air filter on the oil tank body. A baffle is installed inside the main oil storage chamber between the main oil suction pipe and the main oil return pipe. A gap is reserved between the baffle and the top of the main oil storage chamber. A window is opened in the upper middle part of the baffle, and a filter screen is installed in the window. The oil between the main oil suction pipe and the main oil return pipe is connected through the filter screen.

[0010] Furthermore, the main return oil pipe has an oblique opening inside the main oil storage cavity, with the oblique surface of the opening facing the side wall of the main oil storage cavity; the main suction oil pipe has an oblique opening inside the main oil storage cavity, with the oblique surface of the opening facing away from the bottom of the main oil storage cavity.

[0011] Furthermore, the main suction pipe is horizontal, and the main return pipe extends vertically into the main oil storage chamber below the liquid surface.

[0012] Furthermore, the ports of the auxiliary oil suction pipe and auxiliary oil return pipe located within the auxiliary oil storage cavity are set at bevels, with the bevels facing the sidewall of the auxiliary oil storage cavity.

[0013] Furthermore, a return oil filter is installed outside the tank body at the inlet of the main return oil pipe.

[0014] Furthermore, a second air filter is installed on the fuel tank body, and the outlet of the second air filter is located in the auxiliary fuel storage chamber.

[0015] Furthermore, the auxiliary suction pipe and the auxiliary return pipe pass through the auxiliary oil storage chamber from the same side wall of the oil tank body. The auxiliary suction pipe and the auxiliary return pipe are staggered vertically, with the auxiliary suction pipe at the bottom and the auxiliary return pipe at the top. The auxiliary suction pipe and the auxiliary return pipe are separated laterally by a horizontal pipe section. The auxiliary suction pipe and the auxiliary return pipe extend vertically into the auxiliary oil storage chamber below the liquid surface.

[0016] Furthermore, ear plates are installed on the outside of the fuel tank.

[0017] Compared with the prior art, the advantages of this utility model are:

[0018] This utility model provides a dual-chamber dustproof drilling rig oil tank. The tank is physically separated into main and auxiliary oil storage chambers, which can store hydraulic oil and lubricating grease (or diesel engine oil) separately, avoiding cross-contamination. The main chamber is equipped with an airbag pressure compensation system (connected to the first air filter), and the auxiliary chamber has an independent second air filter, ensuring pressure balance and independent gas exchange in the dual oil circuit system. The lateral design of the main return oil pipe (sloping surface facing the tank wall) attenuates the impact kinetic energy of the return oil, reducing the agitation of bottom sediment. The baffle filter window forms a slow-flow zone for the oil, causing secondary sedimentation of impurities as they pass through the filter. The sloping design of the main suction oil pipe facing away from the bottom creates a safe suction height, avoiding the suction of sediment layers. The auxiliary chamber adopts a staggered layout of suction and return oil pipes, isolating the oil flow path through horizontal pipe sections, reducing mutual disturbance between suction and return oil. Attached Figure Description

[0019] Figure 1 A first-person perspective 3D view of the oil tank of a dual-oil-chamber dustproof drilling rig;

[0020] Figure 2 A second-view perspective stereoscopic view of the oil tank of a dual-oil-chamber dustproof drilling rig;

[0021] Figure 3 This is a diagram showing the internal structure of the oil tank in a dual-oil-chamber dustproof drilling rig.

[0022] In the diagram: 1-Fuel tank body; 2-Main oil storage chamber; 3-Secondary oil storage chamber; 4-Main oil suction pipe; 5-Main oil return pipe; 5.1-First main oil return pipe; 5.2-Second main oil return pipe; 6-Secondary oil suction pipe; 7-Secondary oil return pipe; 8-Airbag; 9-First air filter; 10-Baffle plate; 11-Filter screen; 12-Return oil filter; 13-Second air filter; 14-Ear plate. Detailed Implementation

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] like Figure 1 , Figure 2 , Figure 3 As shown: A dual-oil-chamber dustproof drilling rig oil tank includes an oil tank body 1, which is divided into two oil storage chambers, one of which is a main oil storage chamber 2 and the other is a secondary oil storage chamber 3.

[0025] The main oil storage chamber 2 is equipped with a main oil suction pipe 4 and a main oil return pipe 5, and the auxiliary oil storage chamber 3 is equipped with an auxiliary oil suction pipe 6 and an auxiliary oil return pipe 7.

[0026] An airbag 8 is installed inside the main oil storage chamber 2. The air nozzle of the airbag 8 is connected to the air outlet of the first air filter 9 on the oil tank body 1. External air enters the airbag 8 to indirectly balance the internal and external air pressure difference in the main oil storage chamber 2 caused by the thermal expansion and contraction of hydraulic oil. This prevents dust in the air from entering the main oil storage chamber 2 and causing oil circuit contamination, thereby reducing the overall failure rate of the drilling rig.

[0027] A baffle 10 is installed between the main suction pipe 4 and the main return pipe 5 inside the main oil storage chamber 2. The baffle 10 reduces the mutual disturbance between the main suction pipe 4 and the main return pipe 5 and prevents the main suction pipe 4 from directly sucking up the hydraulic oil that has not settled. A gap is reserved between the baffle 10 and the top of the main oil storage chamber 2 so that the clear hydraulic oil in the upper layer of the main oil storage chamber 2 can flow back and forth. A window is opened in the middle and upper part of the baffle 10, and a filter screen 11 is installed in the window. The oil between the main suction pipe 4 and the main return pipe 5 is connected through the filter screen 11. The filter screen 11 isolates impurities suspended in the hydraulic oil and prevents impurities from re-entering the main suction pipe 4. The filter screen 11 is located in the middle and upper part of the baffle 10. Impurities blocked by the filter screen 11 can naturally settle to the bottom of the main oil storage chamber 2 to prevent the filter screen 11 from being blocked.

[0028] The main return oil pipe 5 has an oblique opening inside the main oil storage chamber 2, with the oblique surface of the opening facing the side wall of the main oil storage chamber 2. The oblique design of the main return oil pipe 5 reduces the impact kinetic energy of the return oil and reduces the agitation of the bottom sediment. The main suction oil pipe 4 has an oblique opening inside the main oil storage chamber 2, with the oblique surface of the opening facing away from the bottom of the main oil storage chamber 2. The oblique design of the main suction oil pipe 4 facing away from the bottom forms a safe suction height and avoids the suction of the sediment layer.

[0029] The main suction pipe 4 is horizontal, and the main return pipe 5 extends vertically into the main oil storage chamber 2 below the liquid surface. The return oil is discharged into the bottom of the main oil storage chamber 2, reducing the disturbance of the upper clear liquid by the return oil impact.

[0030] The ports of the auxiliary oil suction pipe 6 and the auxiliary oil return pipe 7 located in the auxiliary oil storage cavity 3 are set as bevels, with the bevels facing the side wall of the auxiliary oil storage cavity 3; similarly, the beveled side design of the auxiliary oil return pipe 7 reduces the impact kinetic energy of the return oil and reduces the agitation of the bottom sediment; the beveled side design of the auxiliary oil suction pipe 6 reduces the suction of the sediment layer.

[0031] The auxiliary suction pipe 6 and auxiliary return pipe 7 enter the auxiliary oil storage chamber 3 from the same side wall of the oil tank body 1. The auxiliary suction pipe 6 and auxiliary return pipe 7 are staggered vertically, with the auxiliary suction pipe 6 at the bottom and the auxiliary return pipe 7 at the top. The auxiliary suction pipe 6 and auxiliary return pipe 7 are laterally separated by a horizontal pipe section. The auxiliary suction pipe 6 and auxiliary return pipe 7 extend vertically below the liquid surface in the auxiliary oil storage chamber 3, which can avoid turbulence caused by flow. The staggered layout of the auxiliary suction pipe 6 and auxiliary return pipe 7, and the isolation of the oil flow path by the horizontal pipe section, reduces mutual disturbance between oil suction and return.

[0032] A return oil filter 12 is installed at the inlet of the main return oil pipe 5 outside the oil tank body 1. Corresponding to different hydraulic components, the main return oil pipe 5 includes a first main return oil pipe 5.1 and a second main return oil pipe 5.2, and the return oil filter 12 is independently installed on the first main return oil pipe 5.1 and the second main return oil pipe 5.2. Correspondingly, there are also two main suction oil pipes 4.

[0033] A second air filter 13 is installed on the oil tank body 1, and the air outlet of the second air filter 13 is located in the auxiliary oil storage chamber 3.

[0034] An ear plate 14 is installed on the outside of the oil tank body 1, and bolts are inserted through the ear plate 14 to install the oil tank on the drilling rig.

[0035] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A dual-oil-chamber dustproof drilling rig oil tank, characterized in that: It includes a fuel tank body (1), which is divided into two oil storage chambers, one of which is a main oil storage chamber (2) and the other is a secondary oil storage chamber (3); The main oil storage chamber (2) is equipped with a main oil suction pipe (4) and a main oil return pipe (5), and the auxiliary oil storage chamber (3) is equipped with an auxiliary oil suction pipe (6) and an auxiliary oil return pipe (7). An air bladder (8) is installed inside the main oil storage chamber (2). The air nozzle of the air bladder (8) is connected to the air outlet of the first air filter (9) on the oil tank body (1). A partition (10) is installed between the main oil suction pipe (4) and the main oil return pipe (5) inside the main oil storage chamber (2). A gap is reserved between the partition (10) and the top of the main oil storage chamber (2). A window is opened in the middle and upper part of the partition (10). A filter screen (11) is installed in the window. The oil between the main oil suction pipe (4) and the main oil return pipe (5) is connected through the filter screen (11).

2. The dual-oil-chamber dustproof drilling rig oil tank according to claim 1, characterized in that: The main return oil pipe (5) has an oblique opening inside the main oil storage cavity (2), with the oblique surface of the opening facing the side wall of the main oil storage cavity (2); the main suction oil pipe (4) has an oblique opening inside the main oil storage cavity (2), with the oblique surface of the opening facing away from the bottom of the main oil storage cavity (2).

3. The dual-oil-chamber dustproof drilling rig oil tank according to claim 2, characterized in that: The main suction pipe (4) is horizontal, and the main return pipe (5) extends vertically into the main oil storage chamber (2) below the liquid surface.

4. The oil tank for a dual-oil-chamber dustproof drilling rig according to claim 1, characterized in that: The auxiliary oil suction pipe (6) and auxiliary oil return pipe (7) are located in the auxiliary oil storage cavity (3) with their openings set at an angle, and the angled surface of the openings faces the side wall of the auxiliary oil storage cavity (3).

5. The oil tank for a dual-oil-chamber dustproof drilling rig according to claim 1, characterized in that: An oil return filter (12) is installed at the port of the main return oil pipe (5) outside the oil tank body (1).

6. The dual-oil-chamber dustproof drilling rig oil tank according to claim 1, characterized in that: The oil tank body (1) is equipped with a second air filter (13), and the air outlet of the second air filter (13) is located in the auxiliary oil storage cavity (3).

7. The oil tank for a dual-oil-chamber dustproof drilling rig according to claim 4, characterized in that: The auxiliary oil suction pipe (6) and the auxiliary oil return pipe (7) pass through the auxiliary oil storage chamber (3) from the same side wall of the oil tank body (1). The auxiliary oil suction pipe (6) and the auxiliary oil return pipe (7) are staggered vertically, with the auxiliary oil suction pipe (6) at the bottom and the auxiliary oil return pipe (7) at the top. The auxiliary oil suction pipe (6) and the auxiliary oil return pipe (7) are separated laterally by a horizontal pipe section. The auxiliary oil suction pipe (6) and the auxiliary oil return pipe (7) extend vertically into the auxiliary oil storage chamber (3) below the liquid surface.

8. The dual-oil-chamber dustproof drilling rig oil tank according to claim 1, characterized in that: The oil tank body (1) is equipped with an ear plate (14).

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