Deep well submersible pump line protection device

Abstract

The utility model relates to a deep well submersible pump line protection device, and belongs to the technical field of submersible pump line protection devices. The lifting device comprises a lifting pipe and a limiting plate, the lifting pipe is used for being connected to a water outlet of the submersible pump, the lifting pipe comprises a plurality of short pipe sections which are sequentially connected from top to bottom, one end of each short pipe section is provided with an external thread part, the other end of each short pipe section is provided with an internal thread part, and any two adjacent short pipe sections are in threaded screwing connection through the external thread parts and the internal thread parts. A stopping part is arranged on the short pipe section and is positioned on one side, close to the middle part of the short pipe section, of the external thread part; the number of the limiting plates is multiple, one limiting plate is arranged between any two adjacent short pipe sections, the limiting plates are arranged on the external thread parts of the short pipe sections in a sleeving mode and pressed on the blocking parts by the other short pipe section screwed on the external thread parts, and limiting holes allowing cable lines of the submersible pump to penetrate through are formed in the limiting plates. After being used for a long time, the cable line can still be firmly fixed on the side of the lifting pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of submersible pump line protection devices, in particular to a deep well submersible pump line protection device. Background Technique

[0002] After a deep well submersible pump operates for a period of time, the submersible pump is prone to motor grounding faults and pump impeller wear. This requires lifting tools such as cranes to lift the submersible pump in the deep well out for repair, and then lower the repaired submersible pump into the deep well with a crane. During the operation of lifting or lowering the submersible pump with a crane, since the cable line in the submersible pump will collide and rub against the well wall, it is extremely easy to cause entanglement and damage to the submersible pump cable line.

[0003] In order to avoid damage to the submersible pump cable line, a fixing device is generally used to make the cable line lean against the riser pipe of the submersible pump to avoid collision and wear between the cable line and the well wall. For example, a riser pipe for a submersible pump disclosed in the patent application document with the application publication number CN103256437A. In this riser pipe for a submersible pump, the riser pipe structure is composed of multiple short pipes spliced together. The short pipe includes a short pipe body and flanges connected to both ends of the short pipe body. Each short pipe is connected together through flanges. A cable clamp is provided on the short pipe body. The cable clamp includes two oppositely arranged elastic arc-shaped metal sheets, and a cavity for placing the cable is formed between the two elastic arc-shaped metal sheets.

[0004] The structure of this riser pipe for a submersible pump uses a cable clamp to make the cable lean against the vicinity of the riser pipe. However, the elastic arc-shaped metal sheets that make up the cable clamp are prone to deformation after long-term use, and the space between the two elastic arc-shaped metal sheets becomes larger, resulting in the cable not being firmly stuck in the cavity, and the cable is prone to falling off. The elastic arc-shaped metal sheets are soaked in water for a long time and are also prone to breakage after being subjected to bending force for a long time. The structure is not strong enough and has a short service life. Content of the Utility Model

[0005] The utility model provides a deep well submersible pump line protection device to solve the technical problem that when using a cable clamp as a fixing structure for fixing a cable line in the prior art, the cable line is not firmly fixed due to the easy deformation or breakage of the cable clamp after long-term use.

[0006] To solve the above problems, a deep well submersible pump line protection device provided by the utility model adopts the following technical solutions:

[0007] A deep well submersible pump line protection device includes:

[0008] The lift pipe is used to connect to the water outlet of the submersible pump. The lift pipe includes multiple short pipe segments connected sequentially from top to bottom. One end of each short pipe segment is provided with an external thread portion, and the other end is provided with an internal thread portion. Any two adjacent short pipe segments are screwed together through the external thread portion and the internal thread portion. A stop portion is provided on the short pipe segment, and the stop portion is located on one side of the external thread portion close to the middle of the short pipe segment.

[0009] There are multiple limiting plates. One limiting plate is provided between any two adjacent short pipe segments. The limiting plate is sleeved on the external thread portion of the short pipe segment and is pressed against the stop portion by another short pipe segment screwed on the external thread portion. The limiting plate is provided with a limiting hole for the cable line of the submersible pump to pass through.

[0010] Adopting the above technical solution, the lift pipe is formed by screwing multiple short pipe segments together. The limiting plate is clamped between two short pipe segments, and the limiting plate for fixing the cable line can be fixed more firmly on the lift pipe. By passing the cable line through the limiting hole, the cable line is fixed beside the lift pipe, and the cable line is not easily detached from the limiting plate, and the fixation is more reliable. Compared with the method of fixing the cable line by a cable clamp in the prior art, the limiting plate is not easily deformed or broken after long-term use, and is not easily detached from the lift pipe, and has a longer service life.

[0011] Further, a threaded through hole is provided in the middle of the limiting plate. The limiting plate is sleeved on the external thread portion through the threaded through hole and is in threaded screwing fit with the external thread portion, and the limiting plate is in contact with the stop portion.

[0012] Adopting the above technical solution, the limiting plate is screwed on the external thread portion and is in contact with the stop portion, making the connection between the limiting plate and the short pipe segment more firm and reliable.

[0013] Further, the top end of the short pipe segment is provided with an internal thread portion, and the bottom end is provided with an external thread portion. The short pipe segment at the bottom is used to be screwed on the water outlet of the submersible pump through the external thread portion on it.

[0014] Further, the short pipe segment includes a short pipe body and a connecting pipe segment connected to one end of the short pipe body. The outer diameter of the connecting pipe segment is smaller than the outer diameter of the short pipe body. The outer side wall of the connecting pipe segment is provided with an external thread, and the connecting pipe segment forms the external thread portion on the short pipe segment;

[0015] The inner side wall of the end of the short pipe body facing away from the connecting pipe segment is provided with an internal thread, and the part of the short pipe body provided with the internal thread forms the internal thread portion on the short pipe segment;

[0016] A step protruding from the connecting pipe segment is formed at the connection position between the short pipe body and the connecting pipe segment, and this step forms the stop portion on the short pipe segment.

[0017] Further, the limiting holes on each of the limiting plates correspond to each other vertically.

[0018] With the above technical solution, the limiting holes correspond to each other vertically, enabling the cable line to maintain a vertical state and preventing the cable line from bending.

[0019] Further, the limiting hole is an arc-shaped long hole coaxial with the lift pipe.

[0020] With the above technical solution, the limiting hole is an arc-shaped long hole, providing space for the liquid-cooled cable to move within the limiting hole, facilitating the installation of the cable line.

[0021] Further, the limiting plate is a circular plate.

[0022] With the above technical solution, the limiting plate being a circular plate avoids damage caused by touching the well wall during the lowering process.

[0023] The beneficial effects of a deep well submersible line protection device provided by the present utility model are as follows: The limiting plate is fixed between two short pipe sections, and the connection of the limiting plate to the lift pipe is more firm. By providing limiting holes on the limiting plate for the cable line to pass through, the cable line is fixed beside the lift pipe, and the cable line is not easily detached from the limiting holes, providing a more reliable fixation for the cable line. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] By referring to the accompanying drawings and reading the detailed description below, the above and other objectives, features, and advantages of the exemplary embodiments of the present utility model will become readily understandable. In the drawings, several embodiments of the present utility model are shown in an exemplary rather than restrictive manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0025] Figure 1 is a structural schematic diagram of a deep well submersible pump line protection device provided by the present utility model Figure 1 ;

[0026] Figure 2 is a structural schematic diagram of the connection position between two adjacent short pipe sections in a deep well submersible pump line protection device provided by the present utility model;

[0027] Figure 3 is a structural schematic diagram of a short pipe section in a deep well submersible pump line protection device provided by the present utility model;

[0028] Figure 4 is a structural schematic diagram of a limiting plate in a deep well submersible pump line protection device provided by the present utility model.

[0029] Description of the reference numerals:

[0030] 1. Submersible pump; 2. Cable line; 3. Short pipe section; 301. Short pipe body; 302. Connecting pipe section; 303. Step; 4. Limiting plate; 401. Limiting hole; 402. Threaded through hole. Detailed implementation manner

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0032] The following is one of the embodiments of a deep well submersible pump line protection device provided by the present invention:

[0033] As Figure 1 shown, a deep well submersible pump line protection device is used to fix the cable line 2 on the submersible pump 1. The deep well submersible pump line protection device includes a riser pipe and a limiting plate 4.

[0034] The riser pipe includes a plurality of short pipe sections 3 arranged in sequence from top to bottom. As Figure 3 shown, the short pipe section 3 includes a short pipe body 301 and a connecting pipe section 302 coaxially connected to the top end of the short pipe body 301. The outer diameter of the connecting pipe section 302 is smaller than the outer diameter of the short pipe body 301. A step 303 protruding from the connecting pipe section 302 is formed at the connection position between the connecting pipe section 302 and the short pipe body 301, and the step 303 forms a stopping portion on the short pipe section 3. The connecting pipe section 302 is provided with an external thread, and the connecting pipe section 302 forms an external thread portion on the short pipe section 3. An internal thread is provided on the inner side wall of the bottom of the short pipe body 301, and the part of the short pipe body 301 provided with the internal thread forms an internal thread portion on the short pipe section 3. As Figure 2 shown, any two adjacent short pipe sections 3 are threadedly screwed together through the external thread portion and the internal thread portion. The lowermost short pipe section 3 is used to be threadedly screwed to the water outlet of the submersible pump 1 through the internal thread portion thereon.

[0035] As Figure 4 shown, the limiting plate 4 is a circular plate. A threaded through hole 402 is provided at the center of the limiting plate 4, and an arc-shaped long hole coaxial with the threaded through hole 402 is also provided on the limiting plate 4. The arc-shaped long hole is a limiting hole 401 for the cable line 2 to pass through. There are multiple limiting plates 4. As Figure 2As shown, a limiting plate 4 is clamped between any two adjacent short pipe sections 3. The limiting plate 4 is screwed onto the connecting pipe section 302 in the lower short pipe section 3 through a threaded through hole 402. The bottom surface of the limiting plate 4 is in contact with the stopping portion, and the limiting plate 4 is pressed against the stopping portion by the upper short pipe section 3 screwed onto the connecting pipe section 302. The limiting holes 401 on multiple limiting plates 4 correspond to each other in the up-and-down position, so that the cable line 2 can vertically pass through each limiting hole 401.

[0036] When the utility model is in use, first screw a short pipe section 3 onto the water outlet of the submersible pump 1, then screw a limiting plate 4 onto the connecting pipe section 302 on this short pipe section 3, and then screw another short pipe section 3 onto this connecting pipe section 302, so that the limiting plate 4 is clamped between the two short pipe sections 3. Then repeat the above steps to successively screw multiple limiting plates 4 and short pipe sections 3 until the total length of multiple short pipe sections 3 is almost the same as the depth of the deep well. At this time, multiple short pipe sections 3 form a lift pipe. Then make the cable line 2 pass through the limiting holes 401 on each limiting plate 4 in turn, and the cable line 2 is fixed beside the lift pipe. At this time, when the submersible pump 1 is lowered or lifted out, the cable line 2 will not collide and rub against the well wall, and the cable line 2 is not easily damaged.

[0037] The utility model uses the limiting plate 4 to fix the cable line 2. The cable line 2 passes through the limiting hole 401 and is not easily detached from the limiting plate 4. In the utility model, the limiting plate 4 is clamped between two adjacent short pipe sections 3, and the connection between the limiting plate 4 and the lift pipe is more reliable and has a longer service life.

[0038] In this embodiment, the short pipe section 3 includes a short pipe body 301 and a connecting pipe section 302 connected to the top end of the short pipe body 301. In other embodiments, the short pipe section 3 includes a short pipe body 301 and a sleeve section connected to the bottom end of the short pipe body 301. The outer diameter of the sleeve section is larger than the outer diameter of the short pipe body 301. The sleeve section is provided with internal threads, and the sleeve section forms the internal thread portion in the short pipe section 3. A section of external threads is provided at the top of the short pipe body 301, and the part of the short pipe body 301 with external threads at the top forms the external thread portion in the short pipe section 3. At this time, a retaining ring protruding from the short pipe body 301 is provided below the external thread portion, and this retaining ring forms the stopping portion in the short pipe section 3.

[0039] In this embodiment, the limiting hole 401 is an arc-shaped long hole. In other embodiments, the limiting hole 401 is a circular hole.

[0040] Based on the above description of this specification, those skilled in the art can also understand the terms used as follows. For example, terms indicating orientation or positional relationships such as "upper", "lower", "front", "rear", "left", "right", "width", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings of this specification. They are only for the purpose of facilitating the description of the solutions of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the devices or elements involved must have the specific orientation, be constructed and operate in the specific orientation. Therefore, the above terms of orientation or positional relationships cannot be understood or interpreted as limitations on the solutions of the present invention.

[0041] In addition, in the description of this specification, the meaning of "a plurality of" is at least two, such as two, three or more, etc., unless otherwise specifically defined.

Claims

1. A deep water well submersible pump line protection device, comprising: The water lifting pipe is used to be connected to the water outlet of the submersible pump. The water lifting pipe comprises a plurality of short pipe sections connected in sequence from top to bottom. One end of the short pipe section is provided with an external threaded portion, and the other end is provided with an internal threaded portion. Any two adjacent short pipe sections are connected by screwing the external threaded portion and the internal threaded portion. A stopper is provided on the short pipe section, and the stopper is located on one side of the external threaded portion close to the middle of the short pipe section. There are multiple limit plates, and one limit plate is provided between any two adjacent short pipe sections. The limit plate is sleeved on the external threaded portion of the short pipe section and is pressed against the stop portion by another short pipe section screwed on the external threaded portion. The limit plate is provided with a limit hole for the cable line of the submersible pump to pass through.

2. A deep water well submersible pump line protection device according to claim 1, characterized in that: A threaded through hole is provided in the middle of the limit plate, and the limit plate is sleeved on the external threaded portion through the threaded through hole and screwed together with the thread of the external threaded portion, so that the limit plate fits the stopper.

3. A deep water well submersible pump line protection device according to claim 1, characterized in that: The top end of the short pipe section is provided with an internal threaded portion, and the bottom end is provided with an external threaded portion. The short pipe section at the bottom is used to be screwed on the water outlet of the submersible pump through the external threaded portion thereon.

4. A deep water well submersible pump line protection device according to claim 1, characterized in that: The short pipe section comprises a short pipe body and a connecting pipe section connected to one end of the short pipe body, the outer diameter of the connecting pipe section is smaller than the outer diameter of the short pipe body, an outer wall of the connecting pipe section is provided with an external thread, and the connecting pipe section forms an external thread portion on the short pipe section; An inner wall of the short tube body at one end facing away from the connecting pipe section is provided with an internal thread, and the portion of the short tube body provided with the internal thread forms an internal thread portion on the short pipe section; A step protruding from the connecting pipe section is formed at the connecting position between the short pipe body and the connecting pipe section, and the step forms a stopper on the short pipe section.

5. A deepwater well submersible pump line protection device according to any one of claims 1 to 3, characterized in that: The limiting holes on each of the limiting plates correspond to each other up and down.

6. A deepwater well submersible pump line protection device according to any one of claims 1-3, characterized in that: The limiting hole is an arc-shaped long hole coaxial with the water lifting pipe.

7. A deepwater well submersible pump line protection device according to any one of claims 1 to 3, characterized in that: The limiting plate is a circular plate.

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