Oil-submerged pump capable of reducing gas blockage failure rate of auxiliary oil pipeline

Abstract

The utility model provides an oil-submerged pump capable of reducing the failure rate of air blockage of an auxiliary oil pipeline, which comprises a pump head, a connecting pipe and a pump tail, the pump head, the connecting pipe and the pump tail are sequentially connected from top to bottom, and the pump head comprises a pump cap at the upper part and a pump seat at the lower part. A pipeline side leakage device, a pressure adjusting assembly, a power supply wiring cavity, a bridge and a capacitor wiring cavity are sequentially arranged on the pump cap clockwise, a pipeline pressure measuring port and an oil tank pressure measuring port are formed in the left side and the right side of the pipeline side leakage device respectively, and the pipeline pressure measuring port and the oil tank pressure measuring port are communicated through an auxiliary pipeline. According to the technical scheme, the gas blockage failure rate and the maintenance cost of the oil-submerged pump are effectively reduced; the equipment perfectness rate and the utilization rate are improved; the economic benefit is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas station equipment, and particularly relates to a submersible pump for reducing the gas blockage failure rate of a sub - oil pipeline. Background Art

[0002] The submersible pump mainly depends on the drive of the submersible motor. When the submersible motor starts to work, it drives the submersible pump shaft and impeller to rotate rapidly. The impeller blades drive the liquid in the impeller flow channel to rotate continuously. Under the action of inertia, the liquid gradually flows to the outer edge of the impeller along the rotation direction of the impeller blades. During the rotation of the impeller, a force acts on the liquid, causing most of the liquid to flow out of the impeller and enter the diffuser pressure chamber. As the pressure energy of the liquid increases, the submersible pump completes the pumping of the liquid in the well or container. The gas blockage problem of the submersible pump refers to a failure phenomenon in which, during the liquid transportation process using the submersible pump, due to the accumulation or entry of gas into the pump body, the pump cannot pump the liquid normally. This problem usually occurs when the oil level is too low, the oil unloading operation is improper, the pipeline seal is not tight, or there is still air remaining in the pump body that has not been exhausted. When the submersible pump has a gas blockage, a large amount of gas accumulates in the pump body, forming bubbles or cavities. These gases will occupy the space that should originally be occupied by the liquid, thereby reducing the effective displacement of the pump and lowering the pumping efficiency. Seriously, the gas blockage may even cause the pump to stop working completely, affecting the normal operation of the entire liquid transportation system. The gas blockage problem of the submersible pump is an important factor affecting the normal operation of the liquid transportation system. By promptly detecting and handling the gas blockage problem and taking effective preventive measures, the stable operation and efficient pumping of the submersible pump can be ensured. Content of the Utility Model

[0003] In order to make up for the deficiencies of the prior art, the utility model provides a submersible pump for reducing the gas blockage failure rate of a sub - oil pipeline.

[0004] The utility model is realized by the following technical scheme: A submersible pump for reducing the gas blockage failure rate of a sub - oil pipeline, including a pump head, a connecting pipe, and a pump tail. The pump head, the connecting pipe, and the pump tail are connected in sequence from top to bottom. Among them, the pump head includes a pump cap in the upper part and a pump seat in the lower part. On the pump cap, a pipeline leak detector, a pressure regulating component, a power supply wiring cavity, a Wheatstone bridge, a capacitor wiring cavity are arranged in clockwise order. Pipeline pressure measurement ports and oil tank pressure measurement ports are respectively arranged on the left and right sides of the pipeline leak detector. The pipeline pressure measurement port and the oil tank pressure measurement port are connected through an auxiliary pipeline.

[0005] The auxiliary pipeline includes a first threaded tee joint and a second threaded tee joint arranged oppositely. The first threaded tee joint and the second threaded tee joint are connected by a first copper pipe. The left end of the first copper pipe is threadedly connected with a first threaded union, and the first threaded union is threadedly connected with the first threaded tee joint. The right end of the first copper pipe is threadedly connected with a second threaded union, and a pipeline valve is threadedly connected between the second threaded union and the second threaded tee joint. The lower end of the first threaded tee joint is threadedly connected with a second copper pipe through a third threaded union, and the lower end of the second copper pipe is threadedly connected with a fourth threaded union. The lower end of the second threaded tee joint is threadedly connected with a third copper pipe through a fifth threaded union, and the lower end of the third copper pipe is threadedly connected with a sixth threaded union;

[0006] The fourth threaded union is threadedly connected with the pipeline pressure measurement port, and the sixth threaded union is threadedly connected with the oil tank pressure measurement port.

[0007] As a preferred solution, the pump cap and the pump base are fixedly connected by locking bolts.

[0008] As a preferred solution, an oil pipe inlet is provided at the bottom end of the pump base, and an oil outlet is provided on one side of the pump base.

[0009] As a preferred solution, a siphon interface is provided on the pressure regulating assembly.

[0010] As a preferred solution, the connecting pipe is one of a fixed connecting pipe or a telescopic connecting pipe.

[0011] As a preferred solution, the pump tail includes a pump motor and a centrifugal pump.

[0012] Due to the adoption of the above technical solutions, the present utility model has the following beneficial effects compared with the prior art: effectively reducing its air block failure rate and submersible pump maintenance cost; improving the equipment integrity rate and utilization rate; and enhancing economic benefits.

[0013] The additional aspects and advantages of the present utility model will become apparent in the following description part, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present utility model will become apparent and be easily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is a three-dimensional structural schematic diagram of the pump head;

[0017] Figure 3 is a three-dimensional structural schematic diagram of the auxiliary pipeline,

[0018] Among them, Figures 1 to 3 the corresponding relationship between the reference numerals in the drawings and the components is as follows:

[0019] 1 pump head, 2 connecting pipe, 3 pump tail, 4 pump cap, 5 pump seat, 6 pipeline side leakage detector, 7 pressure regulating component, 8 power supply wiring cavity, 9 bridge, 10 capacitor wiring cavity, 11 pipeline pressure measuring port, 12 oil tank pressure measuring port, 13 auxiliary pipeline, 14 siphon interface;

[0020] 13-1 first threaded tee joint, 13-2 second threaded tee joint, 13-3 first copper pipe, 13-4 first threaded straight joint, 13-5 second threaded straight joint, 13-6 pipeline valve, 13-7 third threaded straight joint, 13-8 second copper pipe, 13-9 fourth threaded straight joint, 13-10 fifth threaded straight joint, 13-11 third copper pipe, 13-12 sixth threaded straight joint, 13-13 first screw, 13-14 second screw. Specific embodiments

[0021] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the drawings and specific embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0022] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below.

[0023] The following combines Figures 1 to 3 to specifically describe the submersible pump for reducing the gas blockage failure rate of the auxiliary oil pipeline in the embodiments of the present invention.

[0024] As Figure 1 shown, the present invention provides a submersible pump for reducing the gas blockage failure rate of the auxiliary oil pipeline, including a pump head 1, a connecting pipe 2 and a pump tail 3. The pump head 1, the connecting pipe 2 and the pump tail 3 are connected in sequence from top to bottom. The connecting pipe 2 is one of a fixed connecting pipe or a telescopic connecting pipe. The pump tail 3 includes a pump motor and a centrifugal pump. Among them, the pump head 1 includes a pump cap 4 in the upper part and a pump seat 5 in the lower part. The pump cap 4 and the pump seat 5 are fixedly connected by a locking bolt. An oil pipe inlet 15 is opened at the bottom end of the pump seat 5, and an oil outlet interface 16 is opened on one side of the pump seat 5. As Figure 2As shown in the figure, a pipeline side leakage detector 6, a pressure regulating component 7, a power supply connection cavity 8, a Wheatstone bridge 9, a capacitor connection cavity 10 are successively arranged on the pump cap 4 in the clockwise direction. Pipeline pressure measuring ports 11 and oil tank pressure measuring ports 12 are respectively arranged on the left and right sides of the pipeline side leakage detector 6, and the pipeline pressure measuring port 11 and the oil tank pressure measuring port 12 are connected through an auxiliary pipeline 13; a siphon interface 14 is arranged on the pressure regulating component 7.

[0025] As Figure 3 shown, the auxiliary pipeline 13 includes a first threaded three-way joint 13-1 and a second threaded three-way joint 13-2 arranged oppositely. The first threaded three-way joint 13-1 and the second threaded three-way joint 13-2 are connected through a first copper pipe 13-3. The left end of the first copper pipe 13-3 is threadedly connected with a first threaded straight joint 13-4, and the first threaded straight joint 13-4 is threadedly connected with the first threaded three-way joint 13-1. The right end of the first copper pipe 13-3 is threadedly connected with a second threaded straight joint 13-5, and a pipeline valve 13-6 is threadedly connected between the second threaded straight joint 13-5 and the second threaded three-way joint 13-2. The lower end of the first threaded three-way joint 13-1 is threadedly connected with a second copper pipe 13-8 through a third threaded straight joint 13-7. The lower end of the second copper pipe 13-8 is threadedly connected with a fourth threaded straight joint 13-9. The lower end of the second threaded three-way joint 13-2 is threadedly connected with a third copper pipe 13-11 through a fifth threaded straight joint 13-10. The lower end of the third copper pipe 13-11 is threadedly connected with a sixth threaded straight joint 13-12. The upper ends of the first threaded three-way joint 13-1 and the second threaded three-way joint 13-2 are respectively threadedly installed with a first screw 13-13 and a second screw 13-14 for blocking;

[0026] The fourth threaded straight joint 13-9 is threadedly connected with the pipeline pressure measuring port 11, and the sixth threaded straight joint 13-12 is threadedly connected with the oil tank pressure measuring port 12.

[0027] Pressurize the experimental pipeline to 22 KP, enable the auxiliary pipeline to eliminate "air blockage", and the pipeline liquid effectively returns, achieving the design goal.

[0028] Working process: Install a control valve on the submersible pump head component at the fueling station, connect the relevant detection ports with pipelines to form an auxiliary pipeline for eliminating "air blockage". When "air blockage" occurs in the sub-oil pipeline, close the check valve of the submersible pump, open the auxiliary pipeline for eliminating "air blockage", use the pressure relief pressure in the pipeline to drain part of the oil in the pipeline back into the oil tank, eliminate the "air wall" and "air blockage" phenomena in the sub-oil pipeline, then close the auxiliary pipeline and resume normal oil delivery.

[0029] In the description of the present utility model, the term "a plurality of" means two or more, unless otherwise clearly defined. The orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model; terms such as "connection", "installation", "fixation", etc. should all be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] In the description of this specification, the description of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or instance. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0031] The above are only the preferred embodiments of the present utility model, and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A submersible pump for reducing the gas blockage failure rate of the sub-oil pipeline, comprising a pump head (1), a connecting pipe (2) and a pump tail (3), the pump head (1), the connecting pipe (2) and the pump tail (3) are connected in sequence from top to bottom, and it is characterized in that , The pump head (1) includes a pump cap (4) in the upper part and a pump base (5) in the lower part. A pipeline leak detector (6), a pressure regulating component (7), a power supply connection cavity (8), a Wheatstone bridge (9), a capacitor connection cavity (10) are sequentially arranged on the pump cap (4) in a clockwise direction. Pipeline pressure measurement ports (11) and an oil tank pressure measurement port (12) are respectively arranged on the left and right sides of the pipeline leak detector (6). The pipeline pressure measurement port (11) and the oil tank pressure measurement port (12) are connected through an auxiliary pipeline (13); , The auxiliary pipeline (13) includes a first threaded tee joint (13-1) and a second threaded tee joint (13-2) arranged oppositely. The first threaded tee joint (13-1) and the second threaded tee joint (13-2) are connected through a first copper pipe (13-3). The left end of the first copper pipe (13-3) is threadedly connected with a first threaded straight joint (13-4), and the first threaded straight joint (13-4) is threadedly connected with the first threaded tee joint (13-1). The right end of the first copper pipe (13-3) is threadedly connected with a second threaded straight joint (13-5). A pipeline valve (13-6) is threadedly connected between the second threaded straight joint (13-5) and the second threaded tee joint (13-2). The lower end of the first threaded tee joint (13-1) is threadedly connected with a second copper pipe (13-8) through a third threaded straight joint (13-7). The lower end of the second copper pipe (13-8) is threadedly connected with a fourth threaded straight joint (13-9). The lower end of the second threaded tee joint (13-2) is threadedly connected with a third copper pipe (13-11) through a fifth threaded straight joint (13-10). The lower end of the third copper pipe (13-11) is threadedly connected with a sixth threaded straight joint (13-12). The upper ends of the first threaded tee joint (13-1) and the second threaded tee joint (13-2) are respectively threadedly installed with a first screw (13-13) and a second screw (13-14) for plugging; , The fourth threaded straight joint (13-9) is threadedly connected with the pipeline pressure measurement port (11), and the sixth threaded straight joint (13-12) is threadedly connected with the oil tank pressure measurement port (12).

2. The submersible pump for reducing the gas block failure rate of the secondary oil pipeline according to claim 1, characterized in that , The pump cap (4) and the pump base (5) are fixedly connected through locking bolts.

3. The submerged pump for reducing the gas block failure rate of the auxiliary oil pipeline according to claim 1, wherein , An oil pipe inlet (15) is opened at the bottom end of the pump base (5), and an oil outlet interface (16) is opened on one side of the pump base (5).

4. The submersible pump for reducing the gas block failure rate of the auxiliary oil pipeline according to claim 1, characterized in that , A siphon interface (14) is arranged on the pressure regulating component (7).

5. The submersible pump for reducing the gas block failure rate of the auxiliary oil pipeline according to claim 1, wherein , The connecting pipe (2) is one of a fixed connecting pipe or a telescopic connecting pipe.

6. The submersible pump for reducing the gas block failure rate of the secondary oil pipeline according to claim 1, wherein , The pump tail (3) includes a pump motor and a centrifugal pump.

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