WO2024031566A1

WO2024031566A1 - Frequency conversion skid

Info

Publication number: WO2024031566A1
Application number: PCT/CN2022/111887
Authority: WO
Inventors: 姜一博; 马骁
Original assignee: 山东瑞美油气装备技术创新中心有限公司; 烟台杰瑞石油装备技术有限公司
Priority date: 2022-08-11
Filing date: 2022-08-11
Publication date: 2024-02-15
Also published as: CN116261818A; CN116261818B

Abstract

The present application provides a frequency conversion skid, comprising a power distribution box (200), a power distribution module being arranged in the power distribution box (200). One or more cable trays (100) are arranged on the power distribution box (200), the cable trays (100) are movably arranged relative to the power distribution box (200), and cables on the cable trays (100) are connected to the power distribution module in the power distribution box (200); at least part of the cable trays (100) is telescopically arranged, and by means of the cable trays (100), the power distribution module is connected to a device to be energized (400). The present application solves the problem in the prior art of low disassembly and assembly efficiency of frequency conversion skids and cable trays in a well site.

Description

Frequency conversion pry

Technical field

The present application relates to the technical field of well site power supply, specifically to a frequency conversion skid.

Background technique

At present, in the well site, the high-voltage electricity transmitted to the high-voltage (10kv) power grid of the fracturing well site is usually converted into voltage and frequency by a frequency converter, and then the cables are connected to the well site pressure skid and the frequency converter skid by laying a cable bridge. , The cable tray needs to be laid separately and the cable tray and the electric-driven pressure skid are wired separately.

When building a new well site or relocating a well site, the frequency conversion skid and cable bridge need to be installed, disassembled and laid separately, and the cables between the cable bridge and the electric fracturing skid bridge need to be dismantled one by one. The work is relatively cumbersome and takes up time. The installation efficiency is low and it is not suitable for the fast pace of unmanned well site operations.

Contents of the invention

The main purpose of this application is to provide a frequency conversion skid to solve the problem of low disassembly and assembly efficiency of the frequency conversion skid and the cable tray in the prior art in the well site.

In order to achieve the above purpose, the present application provides a frequency conversion skid, which includes: a distribution box, a distribution module is arranged in the distribution box; one or more cable bridges are arranged on the distribution box, and the cable bridges are arranged relative to the distribution box. The electrical box body is movably arranged, and the cables on the cable bridge are connected to the power distribution module in the power distribution box; wherein, at least part of the cable bridge is set telescopically, and the power distribution module is connected to the electrical equipment to be connected through the cable bridge. .

Further, the cable tray is rotatably arranged around a predetermined axis relative to the distribution box.

Further, the frequency conversion skid also includes: a moving track, which is arranged on the distribution box, and the moving track has a moving end surface; a supporting component, which is arranged on the cable bridge, and the supporting component has a rolling end surface, and at least part of the rolling end surface of the supporting component is in contact with the moving end surface. When the end faces are in contact, the cable tray moves along the extension direction of the moving end face, and the cable tray is supported by the supporting components.

Further, the frequency conversion skid also includes: a limit stopper, which is arranged on the moving end surface, and the support component is fitted with the limit stopper to limit the position of the cable bridge.

Further, the cable bridge is rotatably arranged around a predetermined axis relative to the distribution box; the moving track extends along an arc-shaped trajectory.

Further, the cable bridge includes: a first frame movably disposed on the distribution box; a second frame disposed on the first frame; the second frame extends or returns relative to the first frame; The two ends of the cable are respectively arranged on the first frame body and the second frame body and extend with the second frame body.

Further, the frequency conversion skid also includes: a folding support rod, which is arranged on the second frame body. The folding support rod has a folding position and an unfolded position. When the second frame body is extended, the folding support rod unfolds and contacts the ground. The frame is supported.

Further, the cable tray also includes: a folding component. The two ends of the folding component are respectively arranged on the first frame body and the second frame body. The second frame body drives the folding component to fold or unfold. The folding component includes a cable protection part. The cable is arranged in the cable protection part.

Further, the cable tray also includes: a wiring component, which is arranged on the folding component and connected to the cable in the cable protection part. The cable is connected to the electrical equipment to be connected through the wiring component.

Further, the cable protection part includes a cable protection cavity, and the folding assembly includes: a first protection section, the first protection section is arranged on the first frame body, the first protection section extends along the extension direction of the first frame body, and the cable The protective cavity is arranged in the first protective section; the second protective section is arranged on the second frame body, and the second protective section extends along the extension direction of the second frame body; the drag chain section is located on the second frame body. Between the first protection section and the second protection section, both ends of the drag chain section are connected to the first protection section and the second protection section respectively.

Applying the technical solution of this application, the frequency conversion skid includes a distribution box, and a distribution module is provided in the distribution box; one or more cable bridges are provided on the distribution box, and the cable bridges are movable relative to the distribution box. Set up, the cables on the cable bridge are connected to the power distribution module in the distribution box; wherein, at least part of the cable bridge is set telescopically, and the power distribution module is connected to the electrical equipment to be connected through the cable bridge. In the well site layout, since the distance between the electrical equipment to be connected and the distribution box is relatively long, long-distance transmission of current is achieved by setting up a cable bridge on the distribution box, and at least part of the cable bridge is set telescopically. , the extension length of the cable tray can be adjusted according to the actual delivery point distance, and the cable tray can be movably set on the distribution box, so that the cable tray can transmit current to the electrical equipment to be connected in any direction, and at the same time, connect the cable tray with The integration of the distribution box can also facilitate the overall movement and disassembly of the frequency conversion skid.

Description of drawings

The description and drawings that constitute a part of this application are used to provide a further understanding of this application. The illustrative embodiments and their descriptions of this application are used to explain this application and do not constitute an improper limitation of this application. In the attached picture:

Figure 1 shows a schematic structural diagram of a first embodiment of a frequency conversion skid according to the present application;

Figure 2 shows a front view of a first embodiment of a frequency conversion skid according to the present application;

Figure 3 shows a top view of the first embodiment of the frequency conversion skid according to the present application;

Figure 4 shows an unfolded schematic view of the cable tray in the frequency conversion skid according to the present application;

Figure 5 shows a usage state diagram of the first embodiment of the frequency conversion skid according to the present application;

Figure 6 shows a schematic diagram of the cooperation between the support component and the limit stop of the frequency conversion skid according to the present application;

Figure 7 shows an extended state diagram of the cable tray in the frequency conversion skid according to the present application;

Figure 8 shows a schematic diagram of the cable protection part of the cable tray in the frequency conversion skid according to the present application;

Figure 9 shows a bottom view of the extended state of the cable tray in the frequency conversion skid according to the present application;

Figure 10 shows a schematic structural diagram of the wiring assembly of the frequency conversion skid according to the present application;

Figure 11 shows a schematic structural diagram of the first fixing part and the second fixing part of the cable tray in the frequency conversion skid according to the present application;

Figure 12 shows a schematic diagram of the fixed cooperation of the first frame body and the second frame body of the cable tray in the frequency conversion skid according to the present application;

Figure 13 shows a schematic structural diagram of a second embodiment of a frequency conversion skid according to the present application;

Figure 14 shows a side view of a second embodiment of a frequency conversion skid according to the present application;

Figure 15 shows a top view of a second embodiment of the frequency conversion skid according to the present application;

Figure 16 shows a schematic structural diagram of a third embodiment of a frequency conversion skid according to the present application;

Figure 17 shows a top view of a third embodiment of a frequency conversion skid according to the present application;

Figure 18 shows a side view of a third embodiment of a frequency conversion skid according to the present application.

Among them, the above-mentioned drawings include the following reference signs:

200. Distribution box; 201. Moving track; 202. Support component; 203. Limit stop; 2010. Moving end face; 2020. Rolling end face;

100. Cable tray; 11. First frame; 12. Second frame; 13. Folding assembly; 130. Cable protection part; 1301. Cable protection cavity; 14. Wiring assembly; 131. First protection section; 132. Second protective section; 133. Drag chain section; 134. Support roller; 140. Wiring strip; 141. Protective enclosure; 142. Protective cover; 1401. Input wiring strip; 1402. Output wiring strip; 110 , sliding groove; 111, supporting end face; 1110, limiting part; 120, stopper; 15, first fixing part; 150, first fixing hole; 16, second fixing part; 160, second fixing hole; 17 , positioning latch;

300. Folding support rod;

400. Equipment to be connected.

Detailed ways

It should be noted that, as long as there is no conflict, the embodiments and features in the embodiments of this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

Please refer to Figures 1 to 18. This application provides a frequency conversion skid, which includes: a distribution box 200, a distribution module is provided in the distribution box 200; one or more cables are provided on the distribution box 200 The cable bridge 100 is movably arranged relative to the distribution box 200, and the cables on the cable bridge 100 are connected to the power distribution modules in the distribution box 200; wherein, at least part of the cable bridge 100 is arranged telescopically. , the power distribution module is connected to the electrical equipment to be connected through the cable tray 100 .

The frequency conversion skid provided according to the present application includes a distribution box 200, and a distribution module is provided in the distribution box 200; one or more cable trays 100 are provided on the distribution box 200, and the cable trays 100 are relative to the power distribution box. The box 200 is movably arranged, and the cables on the cable tray 100 are connected to the power distribution modules in the distribution box 200; wherein, at least part of the cable tray 100 is arranged telescopically, and the power distribution module is connected to the power distribution module through the cable tray 100. Pending electrical equipment connection. In the well site layout, since the distance between the power equipment 400 to be connected and the distribution box 200 is relatively long, the cable tray 100 is provided on the distribution box 200 to realize long-distance transmission of current. The cable tray 100 is at least The cable tray 100 is partially telescopically arranged, and the extension length of the cable tray 100 can be adjusted according to the actual delivery point distance. The cable tray 100 is movably arranged on the distribution box 200 so that the cable tray 100 can face the equipment to be connected in any direction. 400 transmits current, and at the same time, integrating the cable tray 100 and the distribution box 200 can also facilitate the overall movement and disassembly of the frequency conversion skid.

In the preferred embodiment of the present application, the cable tray 100 is rotatably arranged around a predetermined axis relative to the distribution box 200 . The structure arranged in this way is simple and easy to implement, and can be realized by simply providing a rotary support on the distribution box 200 .

Specifically, the distribution box 200 is provided with a through hole for cables to pass through, a bearing is provided in the through hole, the cable bridge 100 is connected to the bearing, a turbine worm structure is provided on the distribution box 200, and the cable bridge is 100 is connected to the turbine in the turbine worm structure, and drives the worm in the turbine worm structure to rotate through the driving motor.

In specific implementation, the frequency conversion skid also includes: a moving rail 201, which is provided on the distribution box 200. The moving rail 201 has a moving end surface 2010; a support component 202, which is provided on the cable bridge 100, and the support component 202 has a rolling end surface 2020. At least part of the rolling end surface 2020 of the supporting member 202 is in contact with the moving end surface 2010. The cable tray 100 moves along the extending direction of the moving end surface 2010, and the cable tray 100 is supported by the supporting member 202. The moving track 201 is used to limit the movement trajectory of the cable tray 100. At the same time, the support component 202 is used to support the cable tray 100 during the rotation of the cable tray 100, so that the rolling end face 2020 cooperates with the moving end face 2010 to reduce the size of the cable. The friction force between the bridge 100 and the distribution box 200 during the rotation process.

In this application, the frequency conversion skid also includes: a limit stopper 203, which is provided on the moving end surface 2010. The support component 202 is in contact with the limit stopper 203 to limit the position of the cable tray 100. When the support component 202 contacts the limiting stop 203, the operator is reminded that the cable tray 100 has moved to the extreme position. Preferably, the limit stop 203 is provided with a proximity switch, and the proximity switch is connected to the drive motor. When the support member 202 triggers the proximity switch, the proximity switch triggers a shutdown command to the drive motor. Preferably, the support member 202 is a roller.

Among them, the cable tray 100 is rotatably arranged around a predetermined axis relative to the distribution box 200; the moving track 201 extends along an arc trajectory. In this way, the extension direction of the moving rail 201 matches the moving direction of the cable tray 100 .

In another embodiment of the moving method of the cable tray 100 provided in this application, a slide rail is provided on the top of the distribution box 200, the cable tray 100 is arranged on the slide rail, and the cable tray 100 slides along the extension direction of the slide rail. There are a plurality of rails, and the plurality of slide rails are arranged in one-to-one correspondence with the plurality of cable trays 100 . Wherein, the plurality of slide rails are parallel to each other or there is an included angle between the extension directions of each slide rail, so that the cable tray 100 can be extended in different directions.

In this application, as shown in Figures 7 to 12, the cable tray 100 includes: a first frame 11, movably arranged on the distribution box 200; a second frame 12, arranged on the first frame 11 The second frame body 12 extends or retracts relative to the first frame body 11 . The two ends of the cable are respectively arranged on the first frame body 11 and the second frame body 12 and extend with the second frame body 12 . During use, the first frame 11 moves along the extension direction of the moving rail 201. After moving to a designated position, the second frame 12 extends to realize power supply.

In order to avoid instability after the second frame body 12 is extended, the frequency conversion pry also includes: a folding support rod 300, which is arranged on the second frame body 12. The folding support rod 300 has a folded position and an unfolded position, and the second frame body 12 extends When , the folding support rod 300 unfolds and contacts the ground to support the second frame 12 . Specifically, the folding support rod 300 is hingedly connected to the second frame body 12. The folding support rod 300 and the second frame body 12 are parallel to each other and are in the folded position. This allows the folding support rod 300 to extend along with the second frame body 12, which is convenient. Unfold the folding support rod 300.

Specifically, the cable tray 100 also includes: a folding component 13. Both ends of the folding component 13 are respectively provided on the first frame body 11 and the second frame body 12. The second frame body 12 drives the folding component 13 to fold or unfold. The folding component 13 13 includes a cable protection part 130 in which the cable is disposed. Among them, the folding component 13 expands or folds as the second frame body 12 telescopically expands or folds, thereby driving the cables to expand or fold to extend the circuit transmission distance.

In order to facilitate power supply to the electrical equipment to be connected 400, the cable tray 100 also includes: a wiring assembly 14, which is disposed on the folding assembly 13 and connected to the cables in the cable protection part 130. The cables are connected to the electrical equipment to be connected through the wiring assembly 14. .

In specific implementation, the cable protection part 130 includes a cable protection cavity 1301, and the folding assembly 13 includes: a first protection section 131. The first protection section 131 is disposed on the first frame 11. The first protection section 131 extends along the first The extension direction of the frame body 11 extends, the cable protection cavity 1301 is provided in the first protection section 131; the second protection section 132 is provided on the second frame body 12, and the second protection section 132 is arranged along the second protection section 132. The extension direction of the frame body 12 extends; the drag chain segment 133 is located between the first protection segment 131 and the second protection segment 132. The two ends of the drag chain segment 133 are respectively connected with the first protection segment 131 and the second protection segment. Segment 132 is connected. After the cable extends from the through hole on the distribution box 200, it is inserted into the cable protection cavity 1301 to protect the cable.

In another embodiment provided by this application, the cable protection part 130 is a protective groove, and the cable is clamped in the protective groove; the protective groove extends along the extension direction of the first protective section 131, and/or the protective groove extends along the second protective groove. The extension direction of the two protection sections 132 extends. The cable protection part 130 is configured as a protection groove, which has a simple structure and facilitates the installation and removal of cables.

Among them, as shown in Figure 6, the folding assembly 13 also includes: a support roller 134, which is arranged on the first frame body 11. One end of the first protection section 131 is connected to the first frame body 11, and the other end of the first protection section 131 It is wound around the support roller 134 and connected with the drag chain segment 133 . The first protection section 131 is supported by the support roller 134 to prevent the two ends of the first protection section 131 from being attached when the second frame body 12 extends.

In the embodiment provided by this application, as shown in Figures 9 and 10, the wiring assembly 14 includes: a wiring strip 140, which is provided on the first protection section 131 and/or the second protection section 132; a protective enclosure 141, The ring is provided on the outside of the wiring strip 140 to enclose a protective cavity for protecting the wiring strip 140; the protective cover 142 is movably disposed on the protective enclosure 141, and the protective cavity is opened or closed through the protective cover 142. The cables on the folding assembly 13 are directly connected to the wiring strip 140. The protective enclosure 141 and the protective cover 142 are used to protect the wiring strip 140 to prevent rainwater or environmental pollutants from falling into the wiring strip 140. There is an electrical hazard inside the socket.

In specific implementation, the wiring strip 140 includes: an input wiring strip 1401, which is provided on the first protection section 131 and/or the second protection section 132. The input wiring strip 1401 is connected to the cable, and the input wiring strip 1401 is A plurality of input wiring strips 1401 are arranged at intervals along the extension direction of the first protection section 131 and/or the second protection section 132 . Among them, the input wiring strip 1401 is connected to the power supply. Through multiple input wiring strips 1401, one or more input wiring strips 1401 can be used simultaneously according to actual needs to meet the power demand.

Further, the wiring strip 140 also includes: an output wiring strip 1402, which is provided on the second protection section 132 and/or the first protection section 131. The output wiring strip 1402 is connected to the cable. The output wiring strip 1402 has multiple A plurality of output wiring strips 1402 are arranged at intervals along the extension direction of the second protection section 132 and/or the first protection section 131 . Among them, the output wiring strip 1402 is connected to the electrical equipment to be used, so that the current in the power supply is output through the output wiring strip 1402 through the cable.

In this application, the second frame body 12 is slidably disposed along the extension direction of the first frame body 11. The first frame body 11 is provided with a sliding groove 110, and the sliding groove 110 extends along the length direction of the first frame body 11. At least part of the second frame body 12 is engaged in the sliding groove 110 and moves along the extension direction of the sliding groove 110 . Preferably, sliding grooves 110 are provided on two opposite side walls of the second frame 12 to maintain balance during the movement of the second frame 12 .

During specific implementation, in order to prevent the second frame body 12 from escaping from the sliding groove 110 and causing a safety accident, the supporting end surface 111 of the first frame body 11 is provided with limiting portions 1110. There are two limiting portions 1110, and the two limiting portions are Parts 1110 are respectively provided at both ends of the support end surface 111; the second frame body 12 is provided with a stop block 120 that fits the support end surface 111, and the stop block 120 is blocked by the limiting part 1110, so that the second The frame 12 moves between the two limiting parts 1110 . Preferably, the limiting part 1110 is a limiting block, and the limiting block contacts the stopping block 120 to remind the operator that the second frame 12 has moved to the extreme position.

During use, in order to prevent the second frame body 12 from moving when it is in the initial position, the cable tray 100 further includes: a first fixing part 15, which is provided on the first frame body 11, and the first fixing part 15 includes a first fixing hole. 150; The second fixing part 16 is provided on the second frame 12. The second fixing part 16 includes a second fixing hole 160, and the positioning pin 17 is passed through the first fixing hole 150 and the second fixing hole 160 in turn. The second frame body 12 is fixed to the first frame body 11 . Specifically, the first fixing part 15 also includes a third fixing hole. When the second frame body 12 extends to the extreme position, the third fixing hole is opposite to the second fixing hole 160 , and the positioning pin 17 is used to secure the second frame body 12 Fixed at the extreme position; when the second frame body 12 is retracted to the initial position, the first fixing hole 150 and the second fixing hole 160 are opposite, and the second frame body 12 is fixed in the retracted position by using the positioning pin.

In this application, both the first frame body 11 and the second frame body 12 adopt a truss structure, which is light in weight and high in strength. The second frame body 12 is convenient for transportation after shrinking, and the folding assembly 13 is used to expand and contract long-distance cables. It has a very good protective effect and is suitable for long-distance transmission of well site cable layout. The wiring assembly facilitates the quick power on and off of the cable.

As shown in Figures 13 to 15, in the second embodiment of the frequency conversion skid, when the power equipment 400 to be connected is placed on both sides of the distribution box 200, two cable trays are provided on the distribution box 200 100. Each cable tray 100 is rotatably arranged relative to the distribution box 200. During specific use, each cable tray 100 is rotated to a predetermined position, and the two cable trays 100 face both sides of the distribution box 200 respectively. Extend the power distribution box 200 to connect the power equipment 400 on both sides of the power distribution box 200 respectively.

As shown in Figures 16 to 18, in the third embodiment of the frequency conversion crowbar, when the placement position of the power equipment 400 to be connected is at a certain angle with the distribution box 200, according to the placement of the power equipment 400 to be connected, position, set a corresponding number of electrical equipment 400 to be connected. During use, each cable tray 100 is rotated to a predetermined position so that the cable tray 100 extends toward the top of the distribution box 200 to connect the electrical equipment 400 to be connected. electricity.

In this application, the cable bridge 100 is rotatably arranged on the distribution box 200, and can lay cables for the electrical equipment 400 to be connected in any direction to meet the power supply requirements. According to the specific location of the electrical equipment 400 to be connected, Configuring the specific number of cable trays 100 improves the applicability of the frequency conversion skid.

From the above description, it can be seen that the above-mentioned embodiments of the present application achieve the following technical effects:

The above descriptions are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included in the protection scope of this application.

Claims

A frequency conversion skid, which is characterized by including:

A distribution box (200), with a distribution module installed inside the distribution box (200);

One or more cable bridges (100) are provided on the distribution box (200), and the cable bridges (100) are movably arranged relative to the distribution box (200). The cable bridges (100) The cables on 100) are connected to the power distribution module in the power distribution box (200);

Wherein, at least part of the cable tray (100) is configured to be telescopic, and the power distribution module is connected to the electrical equipment to be connected through the cable tray (100).
The frequency conversion skid according to claim 1, characterized in that the cable bridge (100) is rotatably arranged around a predetermined axis relative to the distribution box (200).
The frequency conversion skid according to claim 1, characterized in that the frequency conversion skid further includes:

A moving rail (201) is provided on the distribution box (200), and the moving rail (201) has a moving end surface (2010);

A support component (202) is provided on the cable tray (100), the support component (202) has a rolling end surface (2020), and at least part of the rolling end surface (2020) of the support component (202) is in contact with the The moving end surface (2010) contacts, the cable tray (100) moves along the extension direction of the moving end surface (2010), and the cable tray (100) is supported by the supporting member (202).
The frequency conversion skid according to claim 3, characterized in that the frequency conversion skid further includes:

A limiting stop (203) is provided on the moving end surface (2010), and the cable tray (100) is limited by the support member (202) being in contact with the limiting stop (203). Bit.
The frequency conversion skid according to claim 3 or 4, characterized in that the cable bridge (100) is rotatably arranged around a predetermined axis relative to the distribution box (200);

The moving track (201) extends along an arc-shaped trajectory.
The frequency conversion skid according to claim 1, characterized in that the cable tray (100) includes:

The first frame (11) is movably arranged on the distribution box (200);

A second frame body (12) is provided on the first frame body (11). The second frame body (12) extends or retracts relative to the first frame body (11). The wire Both ends of the cable are respectively arranged on the first frame body (11) and the second frame body (12) and extend with the second frame body (12).
The frequency conversion skid according to claim 6, characterized in that the frequency conversion skid further includes:

A folding support rod (300) is provided on the second frame body (12). The folding support rod (300) has a folded position and an unfolded position. When the second frame body (12) is extended, the folding support rod (300) The folding support rod (300) unfolds and contacts the ground to support the second frame (12).
The frequency conversion skid according to claim 6, characterized in that the cable tray (100) further includes:

Folding assembly (13), the two ends of the folding assembly (13) are respectively arranged on the first frame body (11) and the second frame body (12), and the second frame body (12) drives The folding component (13) is folded or unfolded, and the folding component (13) includes a cable protection part (130), and the cable is arranged in the cable protection part (130).
The frequency conversion skid according to claim 8, characterized in that the cable tray (100) further includes:

A wiring assembly (14) is provided on the folding assembly (13) and connected to the cable in the cable protection part (130). The cable is connected to the electrical equipment to be connected through the wiring assembly (14). connect.
The frequency conversion skid according to claim 8, characterized in that the cable protection part (130) includes a cable protection cavity (1301), and the folding assembly (13) includes:

A first protection section (131). The first protection section (131) is arranged on the first frame body (11). The first protection section (131) is along the edge of the first frame body (11). Extending in the extension direction, the cable protection cavity (1301) is provided in the first protection section (131);

A second protection section (132), the second protection section (132) is arranged on the second frame body (12), the second protection section (132) is along the edge of the second frame body (12) Extend in the direction of extension;

Drag chain segment (133), the drag chain segment (133) is located between the first protection segment (131) and the second protection segment (132), and the two ends of the drag chain segment (133) are respectively Connected to the first protection section (131) and the second protection section (132).