Energy-saving power supply for light-load oil well

Abstract

The utility model relates to an energy-saving power supply for a light-load oil well, which comprises a voltage transformation assembly, a power distribution assembly and a lead assembly, the power distribution assembly and the lead assembly are electrically connected with the voltage transformation assembly, the lead assembly comprises a lead and a wire clamp connected to one end of the lead, and the wire clamp is of a U-shaped structure capable of being connected to a high-voltage cable of an oil well power grid. High-voltage alternating current of a power grid can be converted into 220V alternating current through the power supply, and power is supplied to equipment of an oil and gas well in a temporary shutdown state. Compared with an original transformer of an oil and gas well, the power supply is small in loss and reactive power, and consumption of electric power resources is reduced. In addition, the power supply and an original transformer of the oil and gas well can operate separately or parallelly, and repeated transportation, disassembly and assembly of the transformer are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of oil well power supply, in particular to an energy-saving power supply for light-load oil wells. Background Art

[0002] There are a large number of oil and gas resources in the northwest of my country, and some oil and gas wells in some oil fields are temporarily out of service. For these oil and gas wells in a temporarily out of service state, the load of their electrical equipment is small, mainly some RTU equipment, LED lighting, hydraulic control cabinets, cameras, etc. used for well site parameter monitoring and control.

[0003] In the prior art, in order to meet the starting power of the motor of the kowtow machine, the conventional transformers used in oil and gas wells are configured according to the principle of maximum power. Once the oil and gas well is temporarily shut down, the load of the conventional transformer is small, the loss is large, and the reactive power is large, which causes a waste of power resources to a certain extent. If it is temporarily replaced with a small power transformer, as the operation state of the oil and gas well changes from the shutdown state to the production state, it is necessary to repeatedly transport and disassemble the transformer, which is more troublesome. Utility Model Content

[0004] Based on the above problems existing in the prior art, the utility model provides an energy-saving power supply for light-load oil wells, which can adapt to the power load of oil and gas wells in a temporarily shut-down state and reduce the waste of power resources.

[0005] The utility model adopts a technical solution to solve the technical problem: an energy-saving power supply for light-load oil wells, including a transformer assembly, which is configured to adapt to the power load of the light-load oil wells; and

[0006] A power distribution assembly and a conductor assembly, electrically connected to the transformer assembly;

[0007] The wire assembly includes a wire and a wire clamp connected to one end of the wire;

[0008] The wire clamp is configured as a U-shaped structure that can be connected to a high-voltage cable of an oil well power grid.

[0009] Furthermore, the transformer assembly includes a first shell, an iron core arranged in the first shell, and a high-voltage winding and a low-voltage winding wound on the iron core, and the lead of the high-voltage winding is connected to the wire through a high-voltage fuse.

[0010] Furthermore, the wire clamp is a U-shaped structure.

[0011] Furthermore, the conductor outer shell is provided with a sleeve connected to the first shell, and the sleeve is filled with epoxy resin.

[0012] Furthermore, the power distribution assembly includes a second shell, a plurality of air switches installed in the second shell, and a neutral terminal block and a ground terminal block.

[0013] Furthermore, the power supply also includes an insulating column, and two ends of the insulating column are respectively connected to the first shell and the second shell.

[0014] Furthermore, the neutral line input terminal and the live line input terminal of one of the air switches are electrically connected to the leads of the low-voltage winding respectively through a low-voltage fuse.

[0015] Furthermore, the power supply further comprises a triangular bracket arranged on the first shell and / or the second shell, and a clamp is installed at one end of the bracket away from the power supply.

[0016] Furthermore, at least two clamps are vertically arranged along the bracket.

[0017] Furthermore, the clamp includes a first semicircular member connected to the bracket and a second semicircular member connected to the first semicircular member, one end of the first semicircular member and the second semicircular member are hinged, and the other end of the first semicircular member and the second semicircular member are detachably connected.

[0018] The beneficial effects of the utility model are as follows: the utility model provides an energy-saving power supply for light-load oil wells, including a transformer assembly, a power distribution assembly electrically connected to the transformer assembly, and a wire assembly, wherein the wire assembly includes a wire and a wire clamp connected to one end of the wire, and the wire clamp is constructed into a U-shaped structure that can be connected to the high-voltage cable of the oil well power grid. The power supply can convert the high-voltage alternating current of the power grid into 220V alternating current to power the equipment of the oil and gas well that is temporarily out of service. Compared with the original transformer of the oil and gas well, the power supply has less loss and less reactive power, thereby reducing the consumption of electric power resources. In addition, the power supply can also be operated separately or in parallel with the original transformer of the oil and gas well to avoid repeated transportation and disassembly of the transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 Shown is a schematic structural diagram of an energy-saving power supply for light-load oil wells.

[0021] Among them, the reference numerals in the figure are: 10, transformer assembly; 11, first housing; 12, transformer core; 13, high-voltage winding; 14, low-voltage winding;

[0022] 20. Wire assembly; 21. Sleeve; 22. Wire; 23. High-voltage fuse; 24. Wire clamp;

[0023] 30. Power distribution assembly; 31. Second housing; 32. Air switch; 33. Neutral terminal block; 34. Ground terminal block; 35. Insulation column; 36. Low voltage fuse;

[0024] 40. Bracket; 41. Hoop; 411. First semicircular member; 412. Second semicircular member. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model clearer, the utility model is now described in detail in conjunction with the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basic structure of the utility model in a schematic manner, so it only shows the composition related to the utility model. Obviously, the described embodiment is a part of the embodiment 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 making creative work are within the scope of protection of the utility model.

[0026] refer to Figure 1 As shown, the utility model provides an energy-saving power supply for light-load oil wells, including a transformer assembly 10, a conductor assembly 20 for drawing power from the oil well power grid, and a power distribution assembly 30 electrically connected to the transformer assembly 10. The transformer assembly 10 can convert the high voltage electricity transmitted by the conductor assembly 20 into low voltage electricity, and supply power to the electrical equipment of the oil and gas well in a temporarily shut-down state through the power distribution assembly 30.

[0027] Combination Figure 1 As shown, the transformer assembly 10 includes a first housing 11, a transformer core 12 installed inside the first housing 11, and a high-voltage winding 13 and a low-voltage winding 14 wound on the transformer core 12. The high-voltage AC power source taken from the oil well power grid is converted into a 220V AC power source suitable for electrical equipment through the high-voltage winding 13, the transformer core 12 and the low-voltage winding 14, thereby supplying power to the electrical equipment of the oil and gas well that is temporarily out of service.

[0028] In some embodiments, the transformer core 12 is made of a plurality of soft magnetic silicon steel sheets stacked together. The cross-sectional area of ​​the transformer core 12 can be determined according to the power of the electrical equipment of the oil and gas well that is temporarily shut down.

[0029] In some embodiments, both the high voltage winding 13 and the low voltage winding 14 are made of enameled copper wire. The number of turns of the high voltage winding 13 and the low voltage winding 14 is determined according to 6V / turn. The cross-sectional area of ​​the high voltage winding 13 and the low voltage winding 14 can be determined according to the heat dissipation conditions and the power of the electrical equipment.

[0030] Recombination Figure 1As shown, the wire assembly 20 includes a sleeve 21 connected to the first housing 11, a high-voltage fuse 23 disposed in the sleeve 21, and a wire 22 penetrating the sleeve 21. One end of the wire 22 is located in the sleeve 21, and is connected to the lead of the high-voltage winding 13 through the high-voltage fuse 23. A wire clamp 24 is provided at one end of the wire 22 located outside the sleeve 21, and the wire clamp 24 is used to connect to the high-voltage cable of the oil well power grid.

[0031] In some embodiments, epoxy resin is also poured into the sleeve 21 to ensure that the conductor assembly 20 has an insulation performance of at least 10KV. At the same time, the poured epoxy resin can also meet the outdoor requirements of sand and sun resistance.

[0032] In some of the embodiments, the wire clamp 24 is generally a U-shaped structure, which facilitates technicians to hook the wire clamp 24 onto or remove it from the high-voltage cable of the oil well power grid.

[0033] Recombination Figure 1 As shown, in some embodiments, the power distribution assembly 30 includes a second shell 31, a plurality of air switches 32 installed in the second shell 31, and a neutral terminal block 33 and a ground terminal block 34. The second shell 31 is connected to the first shell 11 through at least two insulating columns 35. In a specific embodiment, the upper end of the insulating column 35 is connected to the end face of the first shell 11, and the lower end of the insulating column 35 is connected to the upper end face of the first shell 11. The insulating column 35 can increase the distance between the high-voltage component and the low-voltage component to ensure that the low-voltage electric tool has sufficient safe operating distance. In this embodiment, two insulating columns 35 are provided.

[0034] In some embodiments, the neutral line input terminal and the live line input terminal of one of the air switches 32 are electrically connected to the lead of the low-voltage winding 14, respectively, and a low-voltage fuse 36 is also provided between the neutral line input terminal and the live line input terminal of the air switch 32 and the lead of the low-voltage winding 14. The neutral line input terminals of several air switches 32 are electrically connected to each other through wires, and are electrically connected to the neutral line terminal block 33 through wires. The live line input terminals of several air switches 32 are electrically connected to each other through wires. The live line output terminals and the neutral line input terminals of several air switches 32 are electrically connected to each electrical device through wires, so that the air switch 32 controls the on and off of the circuit.

[0035] Recombination Figure 1As shown, the energy-saving power supply for light-load oil wells also includes a triangular structure bracket 40 arranged on the first shell 11 and / or the second shell 31. A clamp 41 for fixing the power supply on a pole is also installed at the end of the bracket 40 away from the power supply. The clamp 41 includes a first semicircular member 411 connected to the bracket 40 and a second semicircular member 412 connected to the first semicircular member 411. One end of the first semicircular member 411 is hinged to one end of the second semicircular member 412, and the other end of the first semicircular member 411 is detachably connected to the other end of the second semicircular member 412. In this embodiment, the first semicircular member 411 and the second semicircular member 412 are detachably connected by a screw and a nut.

[0036] In some embodiments, at least two clamps 41 are vertically arranged along the bracket 40 to firmly fix the power source on the utility pole.

[0037] The utility model provides an energy-saving power supply for light-load oil wells, which has the beneficial effect of comprising a transformer assembly 10, a power distribution assembly 30 electrically connected to the transformer assembly 10, and a conductor assembly 20, wherein the conductor assembly 20 comprises a conductor 22 and a wire clamp 24 connected to one end of the conductor 22, and the wire clamp 24 is configured as a U-shaped structure that can be connected to the high-voltage cable of the oil well power grid. The power supply can convert the high-voltage alternating current of the power grid into 220V alternating current to power the equipment of the oil and gas well that is temporarily out of service. Compared with the original transformer of the oil and gas well, the power supply has less loss and less reactive power, thereby reducing the consumption of electric power resources. In addition, the power supply can also be operated separately or in parallel with the original transformer of the oil and gas well to avoid repeated transportation and disassembly of the transformer.

[0038] In addition, the energy-saving power supply for light-load oil wells provided by the utility model also has excellent data indicators in practical applications.

[0039] (1) Energy consumption index: The transformer of each single well reduces the no-load loss by a total of 2,700 kW per year.

[0040] (2) Power grid line loss reduction indicators: The power grid reduces reactive power by a total of 171,900 kvar per year, and the power factor and load capacity of the lines are improved.

[0041] (3) Economic and technical indicators: Each well saves at least RMB 5,200 in electricity costs per year.

[0042] (4) Energy saving and consumption reduction indicators: Each well saves at least 11,213 kWh of electricity per year.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] It should be understood that the terms "length", "width", "up", "down", "front and back", "left and right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply 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 understood as a limitation on the present invention.

[0045] The above is based on the ideal embodiment of the utility model. Through the above description, relevant staff can make various changes and modifications without departing from the scope of the utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An energy-saving power supply for light-load oil wells, characterized in that: include A transformer assembly (10) configured to adapt to the electrical load of a lightly loaded oil well; and The power distribution assembly (30) and the conductor assembly (20) are electrically connected to the transformer assembly (10). The conductor assembly (20) comprises a conductor (22) and a wire clamp (24) connected to one end of the conductor (22); the wire clamp (24) is configured to be connectable to a high-voltage cable of an oil well power grid.

2. The energy-saving power supply for light-load oil wells according to claim 1, characterized in that: The transformer assembly (10) comprises a first shell (11), a transformer core (12) arranged in the first shell (11), and a high-voltage winding (13) and a low-voltage winding (14) wound on the transformer core (12), wherein the lead of the high-voltage winding (13) is connected to the conductor (22) via a high-voltage fuse (23).

3. The energy-saving power supply for light-load oil wells according to claim 2, characterized in that: The wire clamp (24) is a U-shaped structure.

4. The energy-saving power supply for light-load oil wells according to claim 3, characterized in that: The outer jacket of the wire (22) is provided with a sleeve (21) connected to the first shell (11), and the sleeve (21) is filled with epoxy resin.

5. The energy-saving power supply for light-load oil wells according to claim 2, characterized in that: The power distribution assembly (30) comprises a second housing (31), a plurality of air switches (32) installed in the second housing (31), and a neutral terminal block (33) and a ground terminal block (34).

6. The energy-saving power supply for light-load oil wells according to claim 5, characterized in that: The power supply further comprises an insulating column (35), and two ends of the insulating column (35) are respectively connected to the first shell (11) and the second shell (31).

7. The energy-saving power supply for light-load oil wells according to claim 5, characterized in that: The neutral line input terminal and the live line input terminal of one of the air switches (32) are electrically connected to the leads of the low-voltage winding (14) through a low-voltage fuse (36).

8. The energy-saving power supply for light-load oil wells according to any one of claims 5 to 7, characterized in that: The power supply further comprises a triangular bracket (40) arranged on the first shell (11) and / or the second shell (31), and a clamp (41) is installed at one end of the bracket (40) away from the power supply.

9. The energy-saving power supply for light-load oil wells according to claim 8, characterized in that: At least two of the clamps (41) are vertically arranged along the bracket (40).

10. The energy-saving power supply for light-load oil wells according to claim 8, characterized in that: The hoop (41) comprises a first semicircular member (411) connected to the bracket (40) and a second semicircular member (412) connected to the first semicircular member (411); one end of the first semicircular member (411) and the second semicircular member (412) are hinged; the other end of the first semicircular member (411) and the second semicircular member (412) are detachably connected.

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