A slurry return device for oil drilling mud pump

Abstract

The utility model belongs to the technical field of oil production equipment, and is particularly a mud pump return device for oil drilling, comprising a mud pump cylinder, a slurry outlet, a slurry inlet, a slurry return pipe and a slurry discharge member, wherein a slurry outlet is arranged at one end of the mud pump cylinder, and a slurry inlet is arranged on the mud pump cylinder opposite to the slurry outlet, the slurry outlet and the slurry inlet are arranged in coordination, and a slurry return pipe is connected in coordination with the mud pump cylinder. The oil drilling mud pump return device designed by the utility model is provided with a slurry return pipe between the mud pump cylinder and the slurry inlet, and the communication state between the slurry return pipe and the mud pump cylinder is controlled by a ball valve, when it is necessary to discharge the pressure and mud inside the mud pump cylinder, the pressure and mud will flow back from the slurry return pipe by opening the ball valve, and through the slurry discharge member, when the ball valve is opened, the pressure and mud can be introduced into the interior of the mud pump body, and the internal mud is stirred and scraped, so as to meet the use effect when disassembling and repairing the interior.

Description

Technical Field

[0001] The utility model relates to the technical field of oil production equipment, in particular to a mud return device for an oil drilling mud pump. Background Art

[0002] Mud pump is also a popular concept of a broad pump. Different regions and customs will eventually involve different pump types. The mud pump described in this entry is a type of pump in most senses: the mud pump used in the field of oil drilling.

[0003] A mud pump is a device that delivers mud or flushing fluids such as water into the borehole during the drilling process. A mud pump is a commonly used device for pumping slurry in oil and gas drilling. The main problems are high energy consumption, short life of the pump body due to poor wear resistance, and poor sealing effect. When an existing mud pump fails and the cylinder body cannot move, the mud pump needs to be disassembled for maintenance. However, due to the pressure in the cylinder body, it is not convenient to disassemble the cylinder body for maintenance. In addition, a large amount of mud is extracted and the mud cannot be returned and discharged before the cylinder body is opened for maintenance, and the mud inside the cylinder body is emptied, affecting the use effect. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the utility model provides a mud return device for a petroleum drilling mud pump, which solves the problems that the mud pump proposed in the above background technology does not have the mud return effect and the mud inside the mud pump is not easy to empty.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0008] A mud pump return slurry device for oil drilling comprises a mud pump cylinder body, a slurry outlet, a slurry inlet, a slurry return pipe and a slurry discharge piece. A slurry outlet is arranged at one end of the mud pump cylinder body, a slurry inlet is arranged on the mud pump cylinder body opposite to the slurry outlet, the slurry outlet and the slurry inlet are arranged in coordination, a slurry return pipe is connected in coordination with the slurry return pipe, a slurry discharge piece is slidably inserted into the slurry return pipe, and the slurry discharge piece is arranged in coordination with the mud pump cylinder body.

[0009] Furthermore, a cylinder tube is integrally formed at one end of the mud pump cylinder, and the cylinder tube is cooperatively connected to the mud pump drive shaft.

[0010] Furthermore, a first one-way valve is provided between the slurry outlet and the mud pump cylinder.

[0011] Furthermore, a second one-way valve is cooperatively connected between the slurry inlet and the mud pump cylinder.

[0012] Furthermore, one end of the return slurry pipe is fixedly connected to a ball valve, which is connected to the mud pump cylinder body, and the other end is connected to the slurry inlet below the second one-way valve. The return slurry pipe is integrally provided with a plug-in tube.

[0013] Furthermore, the pulp discharge part is composed of a spiral blade, a first guide rod, a rotating groove, a rotating head, a second guide rod and a rocker. The spiral blade is slidably inserted in the plug-in tube, the spiral blade is arranged in cooperation with the ball valve, one end of the spiral blade is fixedly connected to the first guide rod, the first guide rod is provided with a rotating groove, the rotating groove is rotatably connected to the rotating head, the rotating head is fixedly connected to the second guide rod, and the other end of the second guide rod is fixedly connected to the rocker.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a mud pump return device for oil drilling, which has the following beneficial effects:

[0016] The utility model discloses a mud return device for oil drilling mud pump, in which a mud return pipe is arranged between a mud pump cylinder body and a mud inlet, and the communication state between the mud return pipe and the mud pump cylinder body is controlled by a ball valve. When it is necessary to discharge the pressure and mud inside the mud pump cylinder body, the ball valve is opened, and the pressure and mud will flow back from the mud return pipe, and through the mud discharge part, they can be introduced into the interior of the mud pump body when the ball valve is opened, so as to stir and scrape the mud inside, thereby improving the mud emptying effect and meeting the use effect when the internal part is disassembled for maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the slurry return pipe of the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the slurry discharge member of the utility model.

[0020] In the figure: 1, mud pump cylinder; 101, cylinder tube; 2, slurry outlet; 201, first one-way valve; 3, slurry inlet; 301, second one-way valve; 4, slurry return pipe; 401, plug-in pipe; 402, ball valve; 5, slurry discharge part; 501, spiral blade; 502, first guide rod; 503, rotating groove; 504, rotating head; 505, second guide rod; 506, rocker. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example

[0023] like Figure 1-3 As shown, an embodiment of the utility model proposes a slurry return device for a petroleum drilling mud pump, comprising a mud pump cylinder 1, a slurry outlet 2, a slurry inlet 3, a slurry return pipe 4 and a slurry discharge member 5. The slurry return device for a petroleum drilling mud pump designed in this scheme can conveniently release the pressure and mud reflux inside the mud pump when the mud pump fails and is stuck, and the mud pump cylinder 1 needs to be disassembled for maintenance, thereby improving the convenience during maintenance and meeting the use requirements. A slurry outlet 2 is provided at one end of the mud pump cylinder 1, and the mud pump cylinder 1 opposite to the slurry outlet 2 is provided with a slurry return pipe 4 and a slurry discharge member 5. A slurry inlet 3 is arranged on the top, and the slurry outlet 2 and the slurry inlet 3 are arranged in coordination. A return slurry pipe 4 is connected to the mud pump cylinder 1, and a slurry discharge piece 5 is slidably inserted on the return slurry pipe 4. The slurry discharge piece 5 is arranged in coordination with the mud pump cylinder 1. The mud pump cylinder 1 is an important component of the mud pump. The design of the first one-way valve 201 and the second one-way valve 301 meets the use requirements of the mud pump. The mud pump cylinder 1, the first one-way valve 201 and the second one-way valve 301 are all existing publicly available technical means, and no more details are given here. When the mud pump cylinder 1 fails and is stuck and cannot operate, the ball The valve 402 is rotated to open, so that the slurry return pipe 4 acts between the mud pump cylinder 1 and the slurry inlet 3, so that the two can be connected. Through the connection, the pressure and mud inside the mud pump cylinder 1 can be released, so that after the pressure inside the mud pump cylinder 1 is released, it can be convenient for later disassembly and maintenance. When releasing the pressure and mud, due to the connection between the ball valve 402 and the mud pump cylinder 1, the slurry discharge member 5 is slidably inserted into the mud pump cylinder 1, and the slurry discharge member 5 is rotationally inserted into the mud pump cylinder 1 by rotating the rocker 506, so that the mud inside can be scraped off. By pulling the slurry discharge piece 5 outward, the mud inside the mud pump cylinder 1 can be scraped off to the slurry return pipe 4 for discharge, thereby completely draining the internal pressure and mud of the mud pump cylinder 1. The second guide rod 505 is rotatably connected to the first guide rod 502 through the rotating head 504, so that the slurry discharge piece 5 is in a folded state when not in use, thereby reducing the occupied space. When the mud pump is operating normally, the ball valve 402 is in a closed turntable, and the slurry discharge piece 5 is in the position of the plug-in pipe 401, which does not affect the mud pump's use of extracting mud, meets the use requirements, and is convenient for later disassembly and maintenance.

[0024] like Figure 1 As shown, in some embodiments, a cylinder tube 101 is integrally formed at one end of the mud pump cylinder 1, and the cylinder tube 101 is connected to the mud pump drive shaft, a first one-way valve 201 is provided between the slurry outlet 2 and the mud pump cylinder 1, and a second one-way valve 301 is connected between the slurry inlet 3 and the mud pump cylinder 1. Through the coordinated design, the use requirements of the mud pump are met to ensure that the mud can be extracted and used normally.

[0025] like Figure 2 As shown, in some embodiments, one end of the return pipe 4 is fixedly connected to a ball valve 402, the ball valve 402 is cooperatively connected to the mud pump cylinder 1, and the other end is cooperatively connected to the slurry inlet 3 below the second one-way valve 301. The return pipe 4 is integrally provided with a plug-in tube 401. When the mud pump cylinder 1 needs to be disassembled for maintenance, the return pipe 4 can discharge the residual pressure and mud inside to meet the use requirements.

[0026] like Figure 3 As shown, in some embodiments, the slurry discharge component 5 is composed of a spiral blade 501, a first guide rod 502, a rotating groove 503, a rotating head 504, a second guide rod 505 and a rocker 506. The spiral blade 501 is slidably inserted in the plug-in tube 401, and the spiral blade 501 is matched with the ball valve 402. One end of the spiral blade 501 is fixedly connected to the first guide rod 502, and the first guide rod 502 is provided with a rotating groove 503. The rotating groove 503 is rotatably connected to the rotating head 504, and the rotating head 504 is fixedly connected to the second guide rod 505. The other end of the second guide rod 505 is fixedly connected to the rocker 506. The design of the slurry discharge component 5 meets the use requirements and can completely discharge the mud remaining in the mud pump cylinder 1, thereby improving the use effect during later disassembly.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A mud pump return device for oil drilling, comprising a mud pump cylinder (1), a mud outlet (2), a mud inlet (3), a mud return pipe (4) and a mud discharge member (5), characterized in that: A slurry outlet (2) is provided at one end of the mud pump cylinder body (1), and a slurry inlet (3) is provided on the mud pump cylinder body (1) opposite to the slurry outlet (2). The slurry outlet (2) and the slurry inlet (3) are arranged in coordination with each other. A slurry return pipe (4) is connected in coordination with the mud pump cylinder body (1), and a slurry discharge member (5) is slidably inserted on the slurry return pipe (4). The slurry discharge member (5) is arranged in coordination with the mud pump cylinder body (1).

2. The oil drilling mud pump slurry return device according to claim 1, characterized in that: One end of the mud pump cylinder (1) is integrally formed with a cylinder tube (101), and the cylinder tube (101) is cooperatively connected with the mud pump drive shaft.

3. The oil drilling mud pump slurry return device according to claim 1, characterized in that: A first one-way valve (201) is provided between the slurry outlet (2) and the mud pump cylinder (1).

4. The oil drilling mud pump slurry return device according to claim 1, characterized in that: A second one-way valve (301) is cooperatively connected between the slurry inlet (3) and the mud pump cylinder (1).

5. The oil drilling mud pump slurry return device according to claim 1, characterized in that: One end of the return slurry pipe (4) is fixedly connected to a ball valve (402), which is connected to the mud pump cylinder (1) at one end, and the other end is connected to the slurry inlet (3) below the second one-way valve (301). The return slurry pipe (4) is integrally formed with a plug-in pipe (401).

6. The oil drilling mud pump slurry return device according to claim 1, characterized in that: The pulp discharge member (5) is composed of a spiral blade (501), a first guide rod (502), a rotating groove (503), a rotating head (504), a second guide rod (505) and a rocking wheel (506). The spiral blade (501) is slidably plugged into the plug-in tube (401). The spiral blade (501) is arranged in cooperation with the ball valve (402). One end of the spiral blade (501) is fixedly connected to the first guide rod (502). The first guide rod (502) is provided with a rotating groove (503). The rotating groove (503) is rotatably connected to the rotating head (504). The rotating head (504) is fixedly connected to the second guide rod (505). The other end of the second guide rod (505) is fixedly connected to the rocking wheel (506).

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