CN201994573U - Feed cabinet and oil-well centralized complete-set control power supply device - Google Patents

Abstract

The utility model relates to a feeder cabinet and an oil well centralized control power supply device. The feeder cabinet includes a cabinet body. The front side and the back side of the cabinet body are respectively fixed with a front mounting plate and a rear mounting plate for installing components. An insulating interval is provided between the front mounting plate and the back mounting plate, and front and rear insulating partitions are arranged in the insulating interval, and left and right insulating partitions are arranged perpendicular to the front mounting plate and the rear mounting plate; a feeder of the utility model The cabinet below the bus bar of the electric cabinet is equipped with a component mounting plate for installing components. The components installed in the cabinet are divided into front and back, and both sides can be installed and used. To increase the safety distance, the left and right insulation isolation plates set perpendicular to the component mounting plate isolate the two adjacent control circuits to increase the safety distance.

Description

A kind of feeder cabinet and oil well centralized control power supply device

technical field

The utility model relates to a feeder cabinet suitable for a voltage level of 1140V and below and an oil well centralized complete control power supply device.

Background technique

The existing oil well power supply forms in oil fields can be roughly divided into single well direct high-voltage power supply and simple station control power supply. The single-well direct high-voltage power supply method means that the power transformer next to the single-well pumping unit takes power from the high-voltage power supply line, and supplies it to the motor of the pumping unit after the voltage conversion of the power transformer. This method has high voltage levels and great operational risks. Unfavorable factors such as large scope of impact after a fault; the simple station control power supply method is to supply power to each single well from the power distribution cabinet in the oil production station. Although this method can control the power supply of a single well in a centralized manner, it has a single function; And there are no special components under the 1140V voltage level, and the existing components are low in safety. These oilfield oil well power supply devices have many shortcomings and deficiencies such as low overall technical level, low degree of automation, single function, excessive energy consumption, low safety in use, and inconvenient maintenance.

Utility model content

The purpose of the utility model is to provide a feeder cabinet to solve the problem of low safety of the feeder cabinet under the voltage level of 1140V.

The purpose of this utility model is to provide a centralized control power supply device for oil wells to solve the problems of low automation, single function, high energy consumption, low safety and inconvenient maintenance of the existing 1140V voltage level power supply device.

A feeder cabinet of the present utility model comprises a cabinet body, and a front mounting plate and a rear mounting plate for installing components are respectively fixed on the front and the back of the cabinet, and a front mounting plate and a rear mounting plate are arranged between the There is an insulation interval, and the front and rear insulation partitions are arranged in the insulation interval, and the left and right insulation partitions are respectively arranged perpendicular to the front mounting plate and the rear mounting plate.

Further, the front and the back of the cabinet body are provided with front and rear doors respectively, and the front door includes an upper instrument door and a lower door, and the instrument door is equipped with digital instruments, intelligent multifunctional monitors, operating And stop indicator light, start and stop operation buttons; knife-type switch operation holes are installed on the gate.

Further, insulating and flame-retardant busbar clamping devices are installed on both sides of the upper cabinet corresponding to the instrument door, and insulating pads are provided at the bottom of each busbar clamping groove of the busbar clamping device, and the mounting plate Set in the cabinet corresponding to the gate; the creepage distance of each component is ≥34mm, and the electrical clearance is ≥28mm.

Further, the upper part of the cabinet body is provided with a heat dissipation and moisture exhaust fan, a top cover and a top cover support, and the top cover support fixedly supports the top cover, and the heat dissipation and moisture exhaust fan is arranged under the top cover, and the top cover and/or Or the top cover support is provided with ventilation and cooling holes or grilles.

Further, the front mounting plate and the rear mounting plate are respectively divided into intervals by left and right insulating partitions, and each phase of each interval on the mounting plate is respectively provided with a lightning arrester.

Further, a cable sheath protector and an insulator are installed on the component mounting plate, and the outer leads of the cable sheath protector are connected to the insulator.

A centralized complete control power supply device for oil wells of the utility model includes:

The incoming line cabinet is connected to the power grid externally. The main switching device with various protection functions and the oxide protection device for discharging peak energy are installed in the cabinet. The outgoing line terminal is connected with other functional cabinets through the bus bar. A transformer for the internal electrical power supply of the oil well centralized control device;

The feeder cabinet is connected to the outlet terminal of the incoming line cabinet through the bus bar. The feeder cabinet includes a cabinet body. The front and back of the cabinet are respectively fixed with a front mounting plate and a rear mounting plate for installing components. There is an insulation interval between the installation board and the back installation board, and the front and rear insulation partitions are arranged in the insulation interval, and the left and right insulation partitions are arranged perpendicular to the front installation board and the back installation board, and the components are installed in the cabinet through the installation board. There is a control device, which is composed of components that control the connection and disconnection of the main circuit, field parameter collection, data transmission, and motor protection functions;

The compensation cabinet is a reactive power compensation device, which is connected to the outlet terminal of the incoming cabinet through the bus bar;

The low-voltage transformer cabinet has a built-in power transformer, and the incoming line end of the transformer is connected with the outgoing line end of the incoming line cabinet.

Further, the upper part of the cabinet body is provided with a heat dissipation and moisture exhaust fan, a top cover and a top cover support, and the top cover support fixedly supports the top cover, and the heat dissipation and moisture exhaust fan is arranged under the top cover, and the top cover and/or Or the top cover supports are provided with ventilation and heat dissipation holes or grilles; the front and back of the feeder cabinet body are respectively provided with front and rear doors, and the front door includes an upper instrument door and a lower door, and the instrument door There are digital instruments, intelligent multi-function monitors, running and stop indicator lights, start and stop operation buttons installed on the door; knife-type switch operation holes are installed on the gate.

Further, insulating and flame-retardant busbar clamping devices are installed on both sides of the upper cabinet corresponding to the instrument door, and insulating pads are provided at the bottom of each busbar clamping groove of the busbar clamping device, and the mounting plate Set in the cabinet corresponding to the gate; the creepage distance of each component is ≥34mm, and the electrical clearance is ≥28mm.

Further, the front mounting plate and the rear mounting plate are divided into intervals by the left and right insulating partitions, each phase of each interval on the mounting plate is respectively provided with a lightning arrester, and the cable sheath protector and insulator are installed on the mounting plate, and the cable The outer lead wire of the sheath protector is connected with the insulator.

The cabinet below the bus bar of the power feeding cabinet of the utility model is equipped with front and back mounting plates for installing components. The components installed in the cabinet are divided into front and back, and both sides can be installed and used. Insulation partitions are isolated to increase the safety distance. The left and right insulation partitions set perpendicular to the component mounting plate isolate the two adjacent control circuits, which can increase the safety distance.

A centralized control power supply device for oil wells of the utility model is composed of an incoming line cabinet, a feeder cabinet, a compensation cabinet and a low-voltage transformer cabinet, so that the power supply device has a high degree of automation, multiple functions, low energy consumption, high safety, and easy maintenance. Convenient, especially the front and back mounting panels are installed in the cabinet below the busbar of the feeder cabinet, which are used to install components. Insulation partitions are isolated to increase the safety distance. The left and right insulation partitions set perpendicular to the component mounting plate isolate the two adjacent control circuits, which can increase the safety distance; placing the low-voltage transformer in the low-voltage transformer cabinet also solves the low-voltage load in the station. electricity demand.

Insulated and flame-retardant busbar clamping devices are installed on both sides of the upper part of the feeder cabinet to fix the busbars. There are insulating pads in the inner groove of the busbar clamping device to improve creepage distance and electrical clearance.

The cable sheath protector and insulator in the feeder cabinet are installed on the component mounting plate, and the outer lead of the cable sheath protector is connected to the insulator, which can prevent the cable from being struck by lightning.

Description of drawings

Fig. 1 is the front view of the utility model oil well centralized control power supply device;

Fig. 2 is the rear view of the utility model oil well centralized control power supply device;

Fig. 3 is the front view of the utility model feeder cabinet;

Fig. 4 is a side view structural diagram of the power feeding cabinet of the present invention;

Fig. 5 is a front view structure diagram of the utility model feeder cabinet;

Fig. 6 is a cross-sectional structure diagram of the power feeding cabinet of the present invention.

In each attached drawing, 1. Inlet cabinet, 2. Feed cabinet, 3. Compensation cabinet, 4. Low-voltage transformer cabinet, 5. Digital instrument and intelligent multifunctional monitor, 6. Running and stopping indicator lights, 7. .Start and stop operation buttons, 8. Heat dissipation and exhaust fan, 9. Top cover, 10. Top cover support, 11. Cabinet door lock hole, 12. Knife switch operation hole, 13. Cabinet structure, 14. Cabinet structural reinforcement, 15. Bus bar clamping device, 16. Insulation spacer, 17. Insulation partition, 18. Bus bar, 19. Mounting plate, 20. Lightning arrester, 21. Cable sheath protector, 22. Insulator.

Detailed ways

As shown in Figure 1 and Figure 2, the utility model oil well centralized control power supply device is composed of the following four major functional cabinets: incoming line cabinet 1, feeder cabinet 2, compensation cabinet 3, low-voltage transformer cabinet 4, each function The arrangement order of the cabinets can be combined arbitrarily, and the cabinets are separated by partitions.

The incoming line cabinet 1 is used as the main power incoming line cabinet of the oil well centralized control power supply device, which is externally connected to the grid power supply. It is equipped with a main switching device with multiple protection functions and an oxide protection device for discharging peak energy. The outgoing line ends through the busbar It is connected with other functional cabinets, and a transformer is installed in the cabinet to supply power for the internal electrical appliances of the oil well centralized control device. Using a digital instrument, it has the functions of current, voltage, electricity measurement, communication, etc., and the display is clear and intuitive.

The feeder cabinet 2 is used as the outlet cabinet of the oil well centralized control power supply device. It is connected to the outlet terminal of the incoming cabinet through the bus bar, receives the power from the incoming cabinet, and is connected to the load through the control device and the conductive cable. The operation then controls the power supply to the load. The control device is composed of components that control the connection and disconnection of the main circuit, on-site parameter collection, data transmission, motor protection and other functions. The digital instrument is used and the display is clear and intuitive.

The compensation cabinet 3 is a reactive power compensation device for the oil well centralized control power supply device, which is connected to the outlet terminal of the incoming line cabinet through the busbar, and the reactive power and power factor can be obtained by detecting the current and voltage signals of the oil well centralized control power supply device information, so as to control the compensation device to perform real-time compensation; the compensation method can be electromechanical compensation, electronic compensation and a hybrid compensation of the two methods; The compensation adopts the compensation strategy of electronic first and then electromechanical. At the same time, it should also have the control of overvoltage and switching time.

The low-voltage transformer cabinet 4 is set up to adapt to the low-voltage electrical load in the station. A power transformer is built in the cabinet, and the input terminal of the transformer is connected to the outlet terminal of the incoming line cabinet to convert the high voltage at the incoming terminal to the low-voltage load in the station. required voltage.

As shown in Figure 3, the front view of the cabinet body of the feeder cabinet 2 of the present utility model, the front and back of the cabinet body are respectively provided with front and rear doors, the front door includes an instrument door and a gate, and cabinet door locks are respectively provided on the instrument door and the gate Hole 11, digital instrument and intelligent multifunctional monitor 5, running and stopping indicator light 6, start and stop operation button 7 are installed on the instrument door; The knife-type switch performs closing and opening operations. By operating the start and stop operation button 7, the power supply to the load can be controlled, and the operation status of the circuit is indicated by the operation and stop indicator lights 6, and detailed operation information can be obtained by the digital instrument and the intelligent multi-function monitor 5 parameters, and fault protection for circuits and loads. The top of the feeding cabinet body is provided with a heat dissipation and moisture exhaust fan 8 to facilitate heat dissipation and moisture exhaust in the cabinet. Below the top cover 9.

As shown in Figure 4 and Figure 5, they are the side view and front view internal structure diagrams of the feeder cabinet respectively, and Figure 6 is the cross-sectional structure diagram of the feeder cabinet.

The feeder cabinet 2 is composed of cabinet structural parts 13 of various specifications connected together. The main structure is a cabinet frame, and the connection of the cabinet structural parts 13 is reinforced with a cabinet structural reinforcement 14 that is not suitable for deformation; The front and back of the feeder cabinet body are respectively fixed with front and back mounting plates 19 at longitudinal intervals, and components can be installed on both sides, and front and rear insulating partitions 17 are provided between the front and back mounting plates 19 to increase the safety distance. Perpendicular to the front and back component mounting plates 19, left and right insulating partitions 171 are provided to increase the safety distance. Insulated and flame-retardant busbar clamping devices 15 are installed on both sides of the upper cabinet corresponding to the instrument door. The inner groove of the device 15 is provided with an insulating spacer 16 to increase the creepage distance and electrical clearance. The mounting plate 19 is located in the cabinet below the bus bar 18 fixed by the bus bar clamping device 15. The lightning arrester 20 and the cable protector are installed on the mounting plate 19. The layer protector 21 and the insulator 22, the outer lead of the cable sheath protector 21 is connected to the insulator 22, and the lightning arrester 20 can realize lightning protection for the motor and electrical components.

Claims (10)

1. feeder cabinet, comprise cabinet, it is characterized in that: the front and back in the described cabinet is fixed with front mounting panel and the back side mounting panel that is used to install components and parts respectively, be provided with insulation gap between this front mounting panel and the back side mounting panel, insulating barrier before and after being provided with in this insulation gap is respectively equipped with left and right sides insulating barrier perpendicular to described front mounting panel and back side mounting panel.

2. a kind of feeder cabinet according to claim 1, it is characterized in that: the front and back of described cabinet is respectively equipped with forward and backward door, described Qianmen comprises the instrument door on top and the gate of bottom, digital instrument, intelligent multifunction watch-dog is installed, moves and stops indicator light, startup and shut-down operation button on the described instrument door; Cutter type switching manipulation hole is installed on the described gate.

3. a kind of feeder cabinet according to claim 2, it is characterized in that: the both sides in the top cabinet of described instrument door correspondence are equipped with insulation, fire-retardant bus clamping device, the bottom of each bus holding tank of this bus clamping device is provided with cross-over block, and described mounting panel is located in the cabinet of gate correspondence; Creepage distance 〉=the 34mm of each element, electric clearance 〉=28mm.

4. a kind of feeder cabinet according to claim 1, it is characterized in that: described cabinet top is provided with heat radiation moisture-eliminating blower, top cover and top cover support part, this top cover support part fixed support top cover, described heat radiation moisture-eliminating blower is located at the top cover below, and this top cover and/or top cover support part are provided with ventilating heat dissipating hole or grid.

5. according to each described a kind of feeder cabinet among the claim 1-4, it is characterized in that: described front mounting panel, back side mounting panel are divided into each at interval by left and right sides insulating barrier respectively, each every lightning arrester that is respectively equipped with mutually at interval on the mounting panel, creepage distance 〉=the 34mm of each element, electric clearance 〉=28mm.

6. a kind of feeder cabinet according to claim 5 is characterized in that: on the described components and parts mounting panel cable protective layer protector and insulator are installed, the outer lead of cable protective layer protector links to each other with insulator.

7. an oil well is concentrated complete control electric supply installation, it is characterized in that, comprising:

Incoming line cabinet, the outside electric power network power supply, master switch device with kinds of protect function is housed and the oxide protection device of the spike energy that is used to release in the cabinet, leading-out terminal links to each other with other function cabinet by bus, also is provided with the transformer that is used to the power supply of oil well central control device internal electric in the cabinet;

Feeder cabinet, link to each other with the leading-out terminal of incoming line cabinet by bus, this feeder cabinet comprises cabinet, front and back in the described cabinet is fixed with front mounting panel and the back side mounting panel that is used to install components and parts respectively, be provided with insulation gap between this front mounting panel and the back side mounting panel, insulating barrier before and after being provided with in this insulation gap, be provided with left and right sides insulating barrier perpendicular to described front mounting panel and back side mounting panel, by the components and parts mounting panel control device is installed in the cabinet, this control device is connected by control, disconnect main circuit, on-site parameters is gathered, transfer of data, the components and parts of electric motor protecting function constitute;

Compensating cabinet is reactive power compensation device, links to each other with the leading-out terminal of incoming line cabinet by bus;

The low-tension transformer cabinet, built-in power transformer, this transformer end of incoming cables links to each other with the incoming line cabinet leading-out terminal.

8. a kind of oil well according to claim 7 is concentrated complete control electric supply installation, it is characterized in that: described cabinet top is provided with heat radiation moisture-eliminating blower, top cover and top cover support part, this top cover support part fixed support top cover, described heat radiation moisture-eliminating blower is located at the top cover below, and this top cover and/or top cover support part are provided with ventilating heat dissipating hole or grid; The front and back of described feeder cabinet cabinet is respectively equipped with forward and backward door, described Qianmen comprises the instrument door on top and the gate of bottom, digital instrument, intelligent multifunction watch-dog is installed, moves and stops indicator light, startup and shut-down operation button on the described instrument door; Cutter type switching manipulation hole is installed on the described gate.

9. a kind of oil well according to claim 8 is concentrated complete control electric supply installation, it is characterized in that: the both sides in the top cabinet of described instrument door correspondence are equipped with insulation, fire-retardant bus clamping device, the bottom of each bus holding tank of this bus clamping device is provided with cross-over block, and described mounting panel is located in the cabinet of gate correspondence; Creepage distance 〉=the 34mm of each element, electric clearance 〉=28mm.

10. concentrate complete control electric supply installation according to each described a kind of oil well among the claim 7-9; it is characterized in that: described front mounting panel, back side mounting panel are divided into each at interval by left and right sides insulating barrier respectively; each every lightning arrester that is respectively equipped with mutually at interval on the mounting panel; cable protective layer protector and insulator are installed on the mounting panel, and the outer lead of cable protective layer protector links to each other with insulator.

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