Skid-mounted grid electricity drilling machine power distribution device

Abstract

The utility model relates to the technical field of grid electricity drilling machines, and discloses a skid-mounted grid electricity drilling machine power distribution device, which comprises a cabinet body, an electricity inlet cabinet and an electricity outlet cabinet are arranged in the cabinet body, four groups of ground piles and skid-mounted plates matched with the ground piles are arranged at the bottom of the cabinet body, and the ground piles are respectively arranged at four corners of the cabinet body. The ground pile is composed of a top pile, a bottom pile and a height adjusting device arranged between the top pile and the bottom pile, the top pile is fixedly installed at the bottom of the cabinet body, and the bottom pile can slide up and down in the skid-mounted plate. According to the utility model, through centralized configuration of a power distribution structure, integral hoisting management of a power supply of the grid electricity drilling machine is realized, space is vacated for an electric pole connected to a line, safe and reliable hot-line work can be carried out, and well shutdown yield loss caused by disconnection and connection of the grid electricity drilling machine is avoided; visual adjustment is carried out on the protection setting value, and line power failure is avoided. The operation electric shock risk is reduced by replacing the voltage transformer at any time; a base is installed at the bottom of the box body to prevent water logging and provide firm support.

Description

Technical Field

[0001] The utility model relates to the technical field of grid-electric drilling rigs, in particular to a skid-mounted grid-electric drilling rig power distribution device. Background Art

[0002] When the grid-electric drilling rig is connected (disconnected) to electricity, high-voltage circuit breakers, disconnectors and other equipment need to be installed (disassembled) on the same pole, so there is no extra space to set up an insulating platform. As a result, when the grid-electric drilling rig is powered on or disassembled, the power line needs to be shut down before it can be implemented, and the well shutdown affects the production. In order to solve this problem, a skid-mounted grid-electric drilling rig power distribution device should be used to integrate and install the necessary power equipment for the grid-electric drilling rig in a hoistable, skid-mounted power distribution device. When the grid-electric drilling rig is powered on, it is placed at the lower end of the distribution line, and the grid-electric drilling rig is connected to the distribution line through this device.

[0003] A Chinese utility model patent with application number CN201320298942.3 was searched and disclosed a petroleum grid-powered DC drilling rig. At present, in the domestic petroleum industry, drilling is mostly driven by diesel engines or grid-powered variable frequency speed regulation. As a power source, diesel engines are noisy, pollute the environment, have high fuel consumption, and low energy efficiency; grid-powered variable frequency speed regulation technology has high investment costs, large equipment size, complex systems, and requires professional maintenance. In order to overcome the above-mentioned defects, the utility model provides a petroleum grid-powered DC drilling rig, including a solid control system, an electrical control system, and a power system. The special feature of the utility model is that the power system is an electric motor power unit, which is composed of a DC motor, a base, a coupling, a shield, and connectors. The motor adopts a YZ56-23 type DC motor. The electric motor power unit is connected to the parallel transmission box through the original universal shaft to provide power for the drilling rig. The electrical control system is provided with a high-voltage power distribution system, a low-voltage control system, and a reactive power compensation system.

[0004] A Chinese utility model patent with application number CN200720032244.3 was searched and disclosed a petroleum network electric drilling rig. At present, the domestic drilling rigs in use are mainly powered by diesel generator sets. Such drilling rigs have high fuel consumption, high noise, and exhaust gas after combustion pollutes the environment; in addition, the speed regulation range of the diesel engine is not large and cannot be flexibly used for drilling operations. In order to overcome the above-mentioned defects, the utility model provides a petroleum network electric drilling rig, including a solid control system, an electrical control system, and a power system. The power system is composed of an electric power unit. The electric power unit is an integral sled, which is composed of a three-phase asynchronous motor and a speed-regulating hydraulic coupling reduction box and a base, a coupling, a shield and a connecting piece; the electrical control system is provided with a high-voltage power distribution system and a low-voltage electrical control system. The utility model greatly reduces the production and operation costs, has no air pollution, reduces noise pollution, and has a sufficient speed regulation range, making the drilling rig more reliable and easy to maintain.

[0005] A Chinese utility model patent with application number CN201420822628.5 disclosed a mobile power distribution automatic voltage regulation and reactive power compensation system for a power grid drilling rig, comprising a mobile high-voltage electric control room (1), the mobile high-voltage electric control room (1) comprising a high-voltage room (2), a transformer room (3) and a low-voltage room (4) arranged at intervals, the transformer room being provided with a dual-voltage high-voltage transformer (5), an on-load tap changer (6), a temperature detection sensor (7) and a gas detection system (8), the high-voltage room (2) being provided with an incoming line metering cabinet (9) and a high-voltage switch cabinet (10), the low-voltage room (4) being provided with a low-voltage switch cabinet (15) and an active filter and reactive power compensator (16). The utility model has the beneficial effects of being able to simultaneously meet the two power grid voltages of 10KV and 6KV, having the on-load automatic voltage regulation function, low voltage compensation and voltage ride-through function, being able to effectively improve voltage stability, ensuring the power supply quality of the power grid drilling rig, saving the cost of oil-to-electricity transformation, and improving the power supply quality of the power grid and the stability of the system.

[0006] The existing skid-mounted grid-powered drilling rig power distribution device has a fixed base height, and the ground needs to be leveled before hoisting and installation. The installation environment requirements are high. In emergency assembly situations, the grid-powered drilling rig power distribution device cannot be leveled in advance, causing it to tilt, affecting subsequent use and creating a high safety risk.

[0007] To this end, we propose a skid-mounted grid-electric drilling rig power distribution device. Utility Model Content

[0008] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a skid-mounted grid-electric drilling rig power distribution device.

[0009] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a skid-mounted grid-electric drilling rig power distribution device, comprising a cabinet, wherein an input cabinet and an output cabinet are arranged inside the cabinet, and four groups of ground piles and a skid-mounted plate cooperating with the ground piles are arranged at the bottom of the cabinet, and the ground piles are respectively arranged at the four corners of the cabinet, and the ground piles are composed of a top pile, a bottom pile and a height adjustment device arranged therebetween, the top pile is fixedly installed at the bottom of the cabinet, and the bottom pile can slide up and down in the skid-mounted plate.

[0010] Preferably, at least three groups of movable grooves are provided on the end surfaces of the bottom pile and the top pile that are close to each other, a rotating rod is horizontally fixedly installed in the top pile, and the height adjustment device includes a lower support rod and an upper support rod, the lower support rod and the upper support rod are movably connected, and the ends of the lower support rod and the upper support rod are provided with rotating grooves, which are sleeved on the rotating rod and can rotate around the axis of the rotating rod.

[0011] Preferably, the movable groove is a cubic groove and the side length of the movable groove is the same as the thickness of the lower support rod, and the inner wall of the movable groove interferes with the rotation of the lower support rod toward the center.

[0012] Preferably, the cross-sections of the top pile and the bottom pile are the same, and limiting rings are sleeved on the top pile and the bottom pile. The inner edge of the limiting ring is in close contact with the bottom pile and can slide toward the height adjustment device.

[0013] Preferably, two groups of guide rods are fixedly installed at positions around the piles corresponding to the positions between the cabinet body and the skid plate.

[0014] Preferably, the limit ring is sleeved on the guide rod and can slide axially along the guide rod, and two groups of bidirectional screw rods are movably installed at positions corresponding to the piles around the cabinet body and the skid plate. The upper and lower outer wall surfaces of the bidirectional screw rods are provided with external threads in opposite directions and are respectively threadedly connected to the upper and lower groups of limit rings, and a nut is integrally formed in the middle of the bidirectional screw rod.

[0015] Preferably, an air duct is fixedly installed in the cabinet, and the air duct consists of a fan, a bent pipe and a check plate. The fan is fixedly installed inside the cabinet, the bent pipe is a hollow pipe and one side of the bent pipe is connected to the output end of the fan, and the other end of the bent pipe vertically penetrates the bottom surface of the cabinet downward, and a check plate is fixedly installed on the lower end of the bent pipe, and the check plate consists of four groups of rubber sheets and the four groups of rubber sheets can form a complete prism structure.

[0016] Preferably, the power input cabinet is equipped with an isolating switch, a fuse, a display screen, a lightning arrester, and a voltage transformer, and the power output cabinet is equipped with a load switch, a microcomputer protection device, a display screen, a lightning arrester, and a current transformer. Beneficial Effects

[0017] The utility model provides a skid-mounted grid-electric drilling rig power distribution device, which has the following beneficial effects:

[0018] When hoisting the skid-mounted network electric drilling rig power distribution device, in order to stably install the equipment in an uneven environment, the bidirectional screw is rotated from the nut by using a wrench or other tools, so that the bottom piles sleeved on the top piles and the bottom piles can be synchronously approached along the guide rod, and then the protruding lower support rod and the upper support rod are gathered, so as to increase the distance between the top pile and the bottom pile, and conversely, reduce the distance between the top pile and the bottom pile. By adjusting the distance between the top pile and the bottom pile at different positions, the cabinet can be stably erected on the installation site, further reducing the equipment's requirements on the installation environment and increasing the scope of application of the equipment.

[0019] By centrally configuring the power distribution structure, the overall hoisting management of the power supply of the grid-powered drilling rig is achieved, which frees up space for the poles connected to the line, allowing safe and reliable live operations and avoiding production losses caused by well shutdown when the grid-powered drilling rig is disconnected and connected to the power supply.

[0020] At the same time, it is installed inside the cabinet to exhaust the hot air inside the cabinet to the bottom of the cabinet, thereby reducing snow accumulation in snowy weather and avoiding the risk of equipment being buried by heavy snow. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0022] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment in size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0024] Figure 2 This is a front view of the internal structure of the utility model;

[0025] Figure 3 This is a disassembled diagram of the skid-mounted pile structure of the utility model;

[0026] Figure 4 This is a cross-sectional view of the air duct structure of the utility model;

[0027] Figure 5 This is the internal circuit diagram of the power distribution cabinet of the utility model.

[0028] Legend:

[0029] 1. Cabinet; 2. Inlet cabinet; 3. Outlet cabinet; 4. Ground pile; 401. Top pile; 402. Bottom pile; 410. Movable groove; 411. Rotating rod; 412. Lower support rod; 413. Upper support rod; 414. Rotating groove; 420. Limiting ring; 421. Guide rod; 422. Two-way screw rod; 423. Nut; 5. Pry plate; 6. Air duct; 601. Fan; 602. Bend pipe; 603. Check plate. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model for protection, but merely represents the selected embodiment of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not 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 cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. Embodiment 1

[0033] Skid-mounted grid-electric drilling rig power distribution device, such as Figure 1-Figure 2 As shown, it includes a cabinet 1, the interior of the cabinet 1 is divided into two groups of spaces on the left and right, which are respectively provided with an incoming power cabinet 2 and an outgoing power cabinet 3. When in use, an external high-voltage power supply is connected to the incoming power cabinet 2 and output from the outgoing power cabinet 3. Four groups of ground piles 4 and a skid-mounted plate 5 cooperating with the ground piles 4 are provided at the bottom of the cabinet 1. By integrating the incoming power cabinet 2 and the outgoing power cabinet 3 on the cabinet 1, the ground piles 4 and the skid-mounted plate 5, the power equipment necessary for the grid power drilling rig is uniformly integrated and installed in the hoistable device. When the grid power drilling rig is powered on, it is placed at the lower end of the distribution line, and the grid power drilling rig is connected to the distribution line through the device.

[0034] The incoming cabinet 2 is equipped with an isolating knife switch, fuse, screen display, lightning arrester, and voltage transformer. During on-site installation, it is connected to the high-voltage line through its own cable, and the outgoing cabinet 3 is equipped with a load switch (first generation), a microcomputer protection device, screen display, lightning arrester, and current transformer; during on-site installation, it is connected to the network power drilling rig cable. The connection method of the equipment in the incoming cabinet 2 and the outgoing cabinet 3 is shown in the skid plate 5. Embodiment 2

[0035] Skid-mounted grid-electric drilling rig power distribution device, such as Figure 1-Figure 3 As shown, the ground piles 4 are respectively arranged at the four corners of the cabinet 1. The ground piles 4 are composed of a top pile 401, a bottom pile 402 and a height adjustment device arranged therebetween. The top pile 401 is fixedly installed at the bottom of the cabinet 1, and the bottom pile 402 can slide up and down in the skid plate 5. At least three groups of movable grooves 410 are provided on the end surfaces of the bottom pile 402 and the top pile 401 close to each other. In this embodiment, there are four groups of movable grooves 410, which are respectively arranged on the four sides of the top pile 401. A rotating rod 411 is horizontally fixedly installed in the top pile 401. The height adjustment device The device includes a lower support rod 412 and an upper support rod 413, which are movably connected. The ends of the lower support rod 412 and the upper support rod 413 are provided with a rotation groove 414, which is sleeved on the rotation rod 411 and can rotate around the axis of the rotation rod 411. By adjusting the angle of the lower support rod 412 and the upper support rod 413, the distance between the top pile 401 and the bottom pile 402 can be changed, and then when assembling the device, it can adapt to an uneven bottom surface, reduce the environmental requirements for installing the equipment, and have a wider range of adaptability.

[0036] Among them, the movable groove 410 is a cubic groove and the side length of the movable groove 410 is the same as the thickness of the lower support rod 412. When the lower support rod 412 is vertically in the movable groove 410, the inner wall of the movable groove 410 will block the lower support rod 412 from rotating toward the center, thereby limiting the lower support rod 412 and the upper support rod 413 to only bend in the direction away from the bottom pile 402, avoiding the interference of the four groups of lower support rods 412 due to the inward bending angle, so that the distance between the top pile 401 and the bottom pile 402 cannot reach the maximum adjustment range.

[0037] Furthermore, the cross-sections of the top pile 401 and the bottom pile 402 are the same, and the top pile 401 and the bottom pile 402 are both sleeved with a limiting ring 420, and the inner edge of the limiting ring 420 is in close contact with the bottom pile 402. When the two sets of limiting rings 420 approach each other, the outwardly protruding lower support rod 412 and the upper support rod 413 are retracted toward the center to fix the distance between the top pile 401 and the bottom pile 402. According to the different positions of the ground piles 4, the distance between the two corresponding sets of limiting rings 420 is adjusted to make the cabinet body 1 as a whole stable.

[0038] Furthermore, two groups of guide rods 421 are fixedly installed between the cabinet body 1 and the skid plate 5 at positions corresponding to the positions around the piles 4, so that the position of the skid plate 5 is relatively fixed, which is convenient for fixing when transported by forklift or lifted by crane.

[0039] Furthermore, the limit ring 420 is sleeved on the guide rod 421 and can slide axially along the guide rod 421. Two groups of bidirectional screw rods 422 are movably installed at positions corresponding to the piles 4 around the cabinet body 1 and the skid plate 5. The upper and lower outer wall surfaces of the bidirectional screw rod 422 are provided with external threads in opposite directions and are threadedly connected to the upper and lower groups of limit rings 420 respectively. By rotating the bidirectional screw rod 422, the two groups of limit rings 420 are controlled to synchronously approach and move away from each other, thereby controlling the height adjustment device.

[0040] Furthermore, a nut 423 is integrally formed in the middle of the bidirectional screw rod 422 , and the nut 423 is a hexagonal block, which is convenient for debugging and installation using existing tools such as wrenches. Embodiment 3

[0041] Skid-mounted grid-electric drilling rig power distribution device, such as Figure 1-Figure 5 As shown, in snowy areas and climates, in order to prevent snow accumulation on the ground below the cabinet 1 from affecting the use of electrical appliances inside the cabinet 1, an air duct 6 is fixedly installed in the cabinet 1. The air duct 6 consists of a fan 601, a bend 602 and a check plate 603. The fan 601 is fixedly installed inside the cabinet 1. The bend 602 is a hollow tube and one side of the bend 602 is connected to the output end of the fan 601. The other end of the bend 602 vertically penetrates the bottom surface of the cabinet 1 downward. The heat generated by the operation of the electrical equipment in the cabinet 1 is transported to the bottom of the cabinet 1 to melt the accumulated snow, so that no snow can accumulate at the lower end of the cabinet 1, thereby avoiding the risk of the accumulated snow burying the equipment.

[0042] Furthermore, in order to prevent insects and small animals from entering the cabinet 1 from the curved pipe 602, a check plate 603 is fixedly installed at the lower end of the curved pipe 602. The check plate 603 is composed of four groups of rubber sheets, and the four groups of rubber sheets can form a complete prism structure. When hot air is output from the curved pipe 602, the four groups of rubber sheets are separated from the inside of the check plate 603 for exhaust. When exhaust is not required, the check plate 603 is closed, thereby preventing insects and small animals from entering the curved pipe 602 and damaging the internal equipment of the cabinet 1.

[0043] Working principle of the utility model: when hoisting the equipment, in order to be able to stably install the equipment in an uneven environment, the bidirectional screw rod 422 is rotated from the nut 423 by using a wrench or other tools, so that the bottom pile 402 sleeved on the top pile 401 and the bottom pile 402 can be synchronously approached along the guide rod 421, and then the protruding lower support rod 412 and the upper support rod 413 are gathered, thereby increasing the distance between the top pile 401 and the bottom pile 402, and vice versa, reducing the distance between the top pile 401 and the bottom pile 402. By adjusting the distance between the top pile 401 and the bottom pile 402 at different positions, the cabinet 1 can be stably erected on the installation site, further reducing the equipment's requirements on the installation environment and increasing the scope of application of the equipment.

[0044] At the same time, the hot air inside the cabinet 1 is discharged to the bottom of the cabinet 1 by installing it inside the cabinet 1, thereby reducing the accumulation of snow in snowy weather and avoiding the risk of the equipment being buried by heavy snow.

[0045] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A skid-mounted grid-electric drilling rig power distribution device, comprising a cabinet (1), characterized in that: The cabinet (1) is provided with an input cabinet (2) and an output cabinet (3) inside. The bottom of the cabinet (1) is provided with four groups of ground piles (4) and a skid-mounted plate (5) matched with the ground piles (4). The ground piles (4) are respectively arranged at the four corners of the cabinet (1). The ground piles (4) are composed of a top pile (401), a bottom pile (402) and a height adjustment device arranged therebetween. The top pile (401) is fixedly installed at the bottom of the cabinet (1), and the bottom pile (402) can slide up and down in the skid-mounted plate (5).

2. The skid-mounted grid-electric drilling rig power distribution device according to claim 1 is characterized in that: At least three groups of movable grooves (410) are provided on the end surfaces of the bottom pile (402) and the top pile (401) that are close to each other. A rotating rod (411) is fixedly installed horizontally in the top pile (401). The height adjustment device comprises a lower support rod (412) and an upper support rod (413). The lower support rod (412) and the upper support rod (413) are movably connected. The ends of the lower support rod (412) and the upper support rod (413) are provided with rotating grooves (414). The rotating grooves (414) are sleeved on the rotating rod (411) and can rotate around the axial direction of the rotating rod (411).

3. The skid-mounted grid-electric drilling rig power distribution device according to claim 2 is characterized in that: The movable groove (410) is a cubic groove, and the side length of the movable groove (410) is the same as the thickness of the lower support rod (412). The inner wall of the movable groove (410) interferes with the rotation of the lower support rod (412) toward the center.

4. The skid-mounted grid-electric drilling rig power distribution device according to claim 1 is characterized in that: The cross sections of the top pile (401) and the bottom pile (402) are the same. A limiting ring (420) is sleeved on both the top pile (401) and the bottom pile (402). The inner edge of the limiting ring (420) is tightly attached to the bottom pile (402) and can slide toward the height adjustment device.

5. The skid-mounted grid-electric drilling rig power distribution device according to claim 4 is characterized in that: Two groups of guide rods (421) are fixedly installed at positions corresponding to the surroundings of the piles (4) between the cabinet body (1) and the skid plate (5).

6. The skid-mounted grid-electric drilling rig power distribution device according to claim 5 is characterized in that: The limiting ring (420) is sleeved on the guide rod (421) and can slide axially along the guide rod (421); two groups of bidirectional screw rods (422) are movably installed at positions corresponding to the piles (4) around the cabinet body (1) and the skid plate (5); the upper and lower outer wall surfaces of the bidirectional screw rod (422) are provided with external threads in opposite directions and are respectively threadedly connected to the upper and lower groups of limiting rings (420); and a nut (423) is integrally formed in the middle of the bidirectional screw rod (422).

7. The skid-mounted grid-electric drilling rig power distribution device according to claim 1 is characterized in that: An air duct (6) is also fixedly installed in the cabinet (1), and the air duct (6) is composed of a fan (601), a curved pipe (602) and a check plate (603). The fan (601) is fixedly installed inside the cabinet (1), and one side of the curved pipe (602) is a hollow pipe, and one side of the curved pipe (602) is connected to the output end of the fan (601). The other end of the curved pipe (602) vertically penetrates the bottom surface of the cabinet (1) downward, and a check plate (603) is fixedly installed at the lower end of the curved pipe (602). The check plate (603) is composed of four groups of rubber sheets, and the four groups of rubber sheets can form a complete prism structure.

8. The skid-mounted grid-electric drilling rig power distribution device according to claim 1, characterized in that: The power input cabinet (2) is equipped with an isolating switch, a fuse, a display screen, a lightning arrester, and a voltage transformer, and the power output cabinet (3) is equipped with a load switch, a microcomputer protection device, a display screen, a lightning arrester, and a current transformer.

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