Hydraulic oil-submerged pump

Abstract

The utility model belongs to the field of oil-submerged pumps, in particular to a hydraulic oil-submerged pump, which comprises a crane pipe (6) and a tank car (8) which are arranged on a trestle (4), and an oil pump (9) is arranged on a vertical flange at the bottom of the crane pipe (6). According to the utility model, the abnormity can be timely found and processed, the occurrence of major accidents is avoided, the economic benefit of the oil-submerged pump in the use process is increased, and the labor intensity of personnel in the use process of the oil-submerged pump is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of submersible pumps, in particular to a hydraulic submersible pump. Background Art

[0002] Submersible oil pump is a kind of mechanical equipment commonly used in oil extraction. It is mainly used to pump liquid (such as crude oil, water, etc.) at the bottom of the oil well to the ground for subsequent treatment and processing. It is an indispensable tool in oil field production and can also be used in other oil unloading sites. However, the existing submersible oil pumps still need manual monitoring when in use, which increases the labor intensity of personnel and cannot be monitored at any time, which is prone to accidents. Therefore, we proposed to monitor the operation of submersible oil pumps throughout the process and in all directions. Utility Model Content

[0003] The purpose of the utility model is to solve the problem in the prior art that when a submersible pump is in use, the labor intensity of personnel monitoring is high and they are prone to fatigue, and accidents may occur if the monitoring is not in place. In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0004] A hydraulic submersible oil pump comprises a crane pipe and a tank car installed on the trestle, wherein an oil pump is installed on the bottom vertical flange of the crane pipe;

[0005] The oil pump comprises a pump casing, a connected oil delivery pipe is fixedly connected between the two sides of the pump casing, the top of the oil delivery pipe is fixed to the bottom vertical flange of the crane pipe, a hydraulic motor is fixedly connected to the surface of the pump casing, one end of the hydraulic motor output shaft passes through the top of the pump casing and is fixedly connected to an impeller for conveying medium, a support seat is fixedly connected to the bottom of the pump casing, a space for medium to pass is arranged at the bottom of the support seat, and an adjustment component for adjusting the oil pumping height is arranged on the circumference of the support seat;

[0006] A power mechanism is arranged on one side of the trestle and is used to drive the hydraulic motor to start.

[0007] As a further solution of the utility model, the power mechanism includes a hydraulic station and a manipulation control valve, the hydraulic station is installed under the trestle, and a pressure oil pipe and a return oil pipe are installed on the hydraulic station. The manipulation control valve is installed on one side of the crane pipe, and the other ends of the pressure oil pipe and the return oil pipe are installed on one side of the manipulation control valve. A hose connected to the hydraulic motor is installed on the top of the manipulation control valve.

[0008] As a further solution of the utility model, an extension piece is provided on the circumferential outer wall of the bottom of the support seat.

[0009] As a further solution of the utility model, the surface of the floating block is inserted with a penetrating guide rod, and the bottom of the guide rod is fixed to the surface of the extension piece therebelow.

[0010] As a further solution of the utility model, a filter screen is installed at the feed inlet at the bottom of the pump housing.

[0011] As a further solution of the utility model, an alarm mechanism is also installed on the pier, and the alarm mechanism includes an explosion-proof box, which is fixed on one side of the crane pipe, and a pressure gauge and an intelligent explosion-proof pressure controller are installed in the explosion-proof box. A connecting pipe is installed on one side of the pressure gauge to communicate with the power hydraulic oil of the submersible pump, an audible and visual alarm is installed on one side of the explosion-proof box, and a power indicator light and a control switch are installed on one side of the explosion-proof box.

[0012] In this application, when in use, the oil pump is fixed on the crane pipe. After the pipeline connection is completed, the oil pump is started, and the oil pump is idle for several minutes to determine that the operating pressure of the oil pump is normal. Then turn on the monitor switch. The pressure change of the submersible pump is the main indicator for monitoring. The submersible pump bearing is damaged, the impeller is stuck, or the submersible pump impeller is affected by foreign objects in the tank truck. The speed of the submersible pump impeller is reduced or even stopped, and the speed of the hydraulic motor is synchronously reduced or stopped, and the high-pressure oil passing through the hydraulic motor is also reduced or eliminated. Since the speed of the motor and hydraulic oil pump of the hydraulic oil station is constant, the hydraulic oil flowing into the hydraulic pipeline has not decreased, and the pressure displayed at the hydraulic control integrated valve naturally becomes higher. If the hydraulic hose that flows the hydraulic oil to the submersible pump is damaged and leaks, or the hydraulic station motor stops running due to the action of the thermal relay, the pressure displayed at the hydraulic control integrated valve will be reduced or even eliminated. Therefore, the abnormal pressure monitor of the hydraulic submersible pump will immediately remind the operator to troubleshoot in time.

[0013] Beneficial effects:

[0014] (I) In the utility model, the hydraulic submersible oil pump, by installing an oil unloading monitor on the crane pipe, enhances the safety benefits of the submersible oil pump during use, mainly improving the effectiveness of safety management and control. The oil unloading safety monitor monitors the entire process of oil unloading, and an alarm will be issued if there is any abnormality in the equipment, ensuring that the abnormality is discovered and handled in time to avoid major accidents. For example: oil leakage causes environmental pollution; large oil leakage, if encountering a fire source, will cause serious accidents such as fire and explosion.

[0015] (ii) In the utility model, the hydraulic submersible oil pump increases the economic benefits of the submersible oil pump during use by installing an oil unloading monitor on the crane pipe, mainly controlling the economic losses caused by the expansion of equipment failures and various potential accidents caused by them, such as oil leakage and hydraulic station motor burning, shortening the idling time of the submersible oil pump, reducing energy consumption, and extending the life of the equipment.

[0016] (III) In the utility model, the hydraulic submersible oil pump reduces the labor intensity of personnel during the use of the submersible oil pump by installing an oil unloading monitor on the crane pipe. At present, most oil depots have implemented a large-shift system to reduce personnel, but the tasks are constantly increasing. It avoids personnel frequently walking around to observe the pressure changes of each cargo position and frequently getting on and off the railway tank car to check the oil unloading situation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the hydraulic submersible oil pump in use state proposed by the utility model;

[0018] Figure 2 This is a schematic cross-sectional view of the hydraulic submersible oil pump proposed by the utility model;

[0019] Figure 3 This is a three-dimensional structural schematic diagram of the hydraulic submersible pump proposed by the utility model;

[0020] Figure 4 It is a partial structural schematic diagram of the hydraulic submersible oil pump proposed by the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the alarm mechanism of the hydraulic submersible oil pump proposed by the utility model;

[0022] Figure 6 This is a schematic cross-sectional view of the alarm mechanism of the hydraulic submersible oil pump proposed by the utility model;

[0023] Figure 7 The utility model discloses a schematic diagram of the alarm operation logic diagram of the hydraulic submersible oil pump.

[0024] In the figure: 1. Hydraulic station; 2. Oil pressure pipe; 3. Oil return pipe; 4. Trestle; 5. Operating control valve; 6. Crane pipe; 7. Hose; 8. Tank car; 9. Oil pump; 10. Pump casing; 11. Hydraulic motor; 12. Impeller; 13. Filter; 14. Support seat; 15. Oil pipeline; 16. Float; 17. Sleeve; 18. Guide rod; 19. Extension piece; 20. Explosion-proof box; 21. Power indicator light; 22. Control switch; 23. Sound and light alarm; 24. Pressure gauge; 25. Connecting pipe; 26. Alarm mechanism.

[0025] Promotion of monitoring alarms

[0026] (I) Independent equipment, the oil unloading safety monitoring alarm is composed of seven parts: intelligent explosion-proof pressure controller, battery (or 220V / 380V AC power supply), explosion-proof indicator light, explosion-proof switch, explosion-proof box, hydraulic hose, sound and light alarm. The production principle of the monitoring alarm is simple, the cost is low, and the replicability is strong.

[0027] (2) The operation is simple. When the oil unloading equipment is operating normally, turn on the oil unloading safety monitoring alarm. If an abnormal situation occurs during the oil unloading process, it will cause pressure fluctuations. As long as the set pressure is exceeded, an alarm will be triggered.

[0028] (III) Multiple alarms can be realized.

[0029] 1. It can alarm individually on site, which is especially suitable for the old oil depots where the whole process of oil unloading depends on personnel monitoring and technical transformation is difficult.

[0030] 2. The alarm can be concentrated in one place, just like the bed call system in the inpatient department of a hospital, which can promptly and intuitively show the operating personnel which cargo space is not operating normally.

[0031] 3. It can be connected to the monitoring computer and realize remote control with the electric valve, and the on-site operators will be notified in time to handle it, so as to further improve the automation level of the newly built or renovated oil depot. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0033] Example 1

[0034] Reference Figure 1 - Figure 7 , a hydraulic submersible oil pump, comprising: a crane pipe 6 and a tank car 8 installed on a trestle 4, an oil pump 9 is installed on the bottom vertical flange of the crane pipe 6, the crane pipe 6 is a prior art, and is a special equipment for liquid loading and unloading in the petroleum, chemical and other industries, also known as a fluid loading and unloading arm, and its working principle and use method are not described in detail here;

[0035] The oil pump 9 includes a pump housing 10, and a communicating oil delivery pipe 15 is fixedly connected between the two sides of the pump housing 10. The top of the oil delivery pipe 15 is fixed to the bottom vertical flange of the crane pipe 6. A hydraulic motor 11 is fixedly connected to the surface of the pump housing 10. One end of the output shaft of the hydraulic motor 11 passes through the top of the pump housing 10 and is fixedly connected to an impeller 12 for conveying a medium. A support seat 14 is fixedly connected to the bottom of the pump housing 10. A space for medium passage is provided at the bottom of the support seat 14. The hydraulic motor 11 is used to drive the impeller 12 to rotate, thereby conveying oil, thereby avoiding the problem of air resistance in the crane pipe 6. At the same time, the pump is pressurized, and there is no need to remove the air in the crane pipe 6. The circumference of the support seat 14 is provided with an adjustment component for adjusting the oil pumping height.

[0036] The power mechanism is arranged on one side of the trestle 4 and is used to drive the hydraulic motor 11 to start.

[0037] Example 2

[0038] refer to Figure 1 - Figure 7 , based on Example 1, the hydraulic submersible pump is improved,

[0039] Reference Figure 1 The power mechanism includes a hydraulic station 1 and a maneuvering control valve 5. The hydraulic station 1 is installed under the trestle 4. A pressure oil pipe 2 and a return oil pipe 3 are installed on the hydraulic station 1. The maneuvering control valve 5 is installed on one side of the crane pipe 6. The other ends of the pressure oil pipe 2 and the return oil pipe 3 are installed on one side of the maneuvering control valve 5. A hose 7 connected to the hydraulic motor 11 is installed on the top of the maneuvering control valve 5. The maneuvering control valve 5 is used to control the switch of the pipeline, thereby controlling the start and stop of the hydraulic motor 11.

[0040] Reference Figure 3 and Figure 4 The adjusting component includes a sleeve 17, which is sleeved on the circumference of the support seat 14. A plurality of floats 16 are installed on the circumference of the sleeve 17. The floats 16 can keep the sleeve 17 in the upper position. After the liquid level drops, the sleeve 17 moves downward and remains submerged under the medium, thereby facilitating the extraction of the oil in the tank truck 8 as much as possible and reducing the difficulty of tank sweeping and cleaning.

[0041] Reference Figure 4 An extension piece 19 is provided on the circumferential outer wall of the bottom of the support seat 14 , and the extension piece 19 increases the supporting effect of the support seat 14 .

[0042] Reference Figure 4 The surface of the floating block 16 is inserted with a penetrating guide rod 18, and the bottom of the guide rod 18 is fixed to the surface of the extension piece 19 below it. The guide rod 18 improves the stability of the movement of the floating block 16.

[0043] Reference Figure 2 A filter screen 13 is installed at the feed inlet at the bottom of the pump housing 10.

[0044] Reference Figure 5 , Figure 6 and Figure 7 An alarm mechanism 26 is also installed on the pier 4, and the alarm mechanism 26 includes an explosion-proof box 20, which is fixed on one side of the crane pipe 6. A pressure gauge 24 and an intelligent explosion-proof pressure controller are installed in the explosion-proof box 20, and a connecting pipe 25 is installed on one side of the pressure gauge 24, and the connecting pipe 25 is connected to the crane pipe 6. A sound and light alarm 23 is installed on one side of the explosion-proof box 20, and a power indicator light 21 and a control switch 22 are installed on one side of the explosion-proof box 20. When the pressure in the crane pipe 6 is abnormal, an alarm can be sounded through the sound and light alarm 23 to remind the staff.

[0045] However, as is well known to those skilled in the art, the working principles and wiring methods of the hydraulic station 1, the crane pipe 6 and the operating control valve 5 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any optional selections according to their needs or convenience.

[0046] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hydraulic submersible pump, comprising a crane pipe (6) and a tank car (8) mounted on a trestle (4), characterized in that: An oil pump (9) is installed on the vertical flange at the bottom of the crane pipe (6); The oil pump (9) comprises a pump housing (10), a connected oil delivery pipe (15) is fixedly connected between the two sides of the pump housing (10), the top of the oil delivery pipe (15) is fixed to the bottom vertical flange of the crane pipe (6), a hydraulic motor (11) is fixedly connected to the surface of the pump housing (10), one end of the output shaft of the hydraulic motor (11) passes through the top of the pump housing (10) and is fixedly connected to an impeller (12) for conveying a medium, the bottom of the pump housing (10) is fixedly connected to a support seat (14), a space for medium to pass is provided at the bottom of the support seat (14), and an adjustment component for adjusting the oil pumping height is provided on the circumference of the support seat (14); A power mechanism is arranged on one side of the trestle (4) and is used to drive a hydraulic motor (11) to start.

2. The hydraulic submersible pump according to claim 1, characterized in that: The power mechanism comprises a hydraulic station (1) and a manipulation control valve (5). The hydraulic station (1) is installed below a trestle (4). A pressure oil pipe (2) and a return oil pipe (3) are installed on the hydraulic station (1). The manipulation control valve (5) is installed on one side of a crane pipe (6). The other ends of the pressure oil pipe (2) and the return oil pipe (3) are installed on one side of the manipulation control valve (5). A rubber hose (7) connected to a hydraulic motor (11) is installed on the top of the manipulation control valve (5).

3. The hydraulic submersible pump according to claim 1 or 2, characterized in that: The adjustment component comprises a sliding sleeve (17), the sliding sleeve (17) is sleeved on the circumference of the support seat (14), and a plurality of floating blocks (16) are installed on the circumference of the sliding sleeve (17).

4. The hydraulic submersible pump according to claim 3, characterized in that: An extension piece (19) is provided on the circumferential outer wall of the bottom of the support seat (14).

5. The hydraulic submersible pump according to claim 4, characterized in that: The surfaces of the floating blocks (16) are all plugged with penetrating guide rods (18), and the bottoms of the guide rods (18) are fixed to the surfaces of the extension pieces (19) therebelow.

6. The hydraulic submersible pump according to claim 1, characterized in that: A filter screen (13) is installed at the feed inlet at the bottom of the pump housing (10).

7. The hydraulic submersible pump according to claim 1, characterized in that: The trestle (4) is also provided with an alarm mechanism (26), the alarm mechanism (26) comprising an explosion-proof box (20), the explosion-proof box (20) being fixed to one side of the crane pipe (6), a pressure gauge (24) and an intelligent explosion-proof pressure controller being installed in the explosion-proof box (20), a connecting pipe (25) being installed on one side of the pressure gauge (24), the connecting pipe (25) being connected to the crane pipe (6), an audible and visual alarm (23) being installed on one side of the explosion-proof box (20), and a power indicator light (21) and a control switch (22) being installed on one side of the explosion-proof box (20).

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