CN111884114A

CN111884114A - Prepackage type intelligence box-type substation

Info

Publication number: CN111884114A
Application number: CN202010658515.6A
Authority: CN
Inventors: 吴豪; 张世杰
Original assignee: First Engineering Co Ltd of CCCC Third Highway Engineering Co Ltd
Current assignee: First Engineering Co Ltd of CCCC Third Highway Engineering Co Ltd
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2020-11-03

Abstract

The invention relates to the field of transformer substations, in particular to a preassembled intelligent box-type transformer substation. The inside of box is equipped with voltage monitoring module, current detection module, temperature monitoring module and controller, voltage monitoring module and current monitoring module and the indoor transformer electric connection of transformer, all be equipped with temperature monitoring module in hyperbaric chamber, hyperbaric chamber and the transformer room, voltage monitoring module, current monitoring module and temperature monitoring module all with controller electric connection, the outside of box is equipped with proximity sensor and electric shock alarm, proximity sensor evenly distributed is around the box, electric shock alarm is fixed in the upper end of box, electric connection between proximity sensor and the electric shock alarm and the controller, the power output end of isolation screen concatenates low pressure inlet wire intelligent circuit breaker and wisdom power consumption controller in proper order. According to the technical scheme, the box-type substation is remotely monitored, and the internal heat dissipation capacity of the box-type substation is improved to a certain extent.

Description

Prepackage type intelligence box-type substation

Technical Field

The invention relates to the field of transformer substations, in particular to a preassembled intelligent box-type transformer substation.

Background

The transformer substation is generally a user in a service and area radius, but for field construction far away from the transformer substation, or places such as industrial and mining enterprises with large electric quantity demands, urban public buildings or traffic construction units and the like, the power supply service of the transformer substation is directly adopted, so that a special line is needed, the power consumption cost is high, the site safety power consumption risk is large, and the management and control are difficult.

Therefore, the box-type substation is produced, the box-type substation can directly convert the voltage of 10KV into the voltage of 0.4KV which can be directly used, and the use is very convenient, but when the box-type substation works, workers cannot know relevant parameters such as the temperature and the voltage inside the transformer in real time, so that the working state of the transformer is difficult to master, the transformer fault in each time cannot be prepared in advance, and the construction is greatly influenced. Meanwhile, for places needing isolation voltage, especially remote areas such as mountainous areas, islands and the like, the preassembled box type transformer substation cannot convert low voltage of 0.4KV, cannot output common low voltage and isolation voltage of 0.4KV at the same time, and is intelligently provided with a transformer for voltage conversion, so that specific power utilization requirements are limited to a certain extent, and further, power utilization management investment is larger.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a preassembled intelligent box-type substation, which is used for solving the problems that construction units cannot find transformer faults in advance and prepare the transformer faults in advance, so that the construction is greatly influenced, and the power utilization management investment of remote areas is large.

In order to solve the problems, the invention provides a preassembled intelligent box-type substation, which comprises a box-type substation main body and a mounting base, wherein the box-type substation main body is fixed above the mounting base and comprises a box body, a bottom plate and a box top which are fixedly connected from top to bottom, a partition plate is arranged in the box body and divides the box body into a low-pressure chamber, a high-pressure chamber and a transformer chamber, the low-pressure chamber and the high-pressure chamber are positioned at two sides of the box body, the transformer chamber is positioned in the middle of the box body, a double-output transformer and a bidirectional power supply change-over switch are arranged in the transformer chamber, the high-pressure chamber, the transformer chamber and the low-pressure chamber are electrically connected in sequence, the outer surface of the box body is coated with a reflective coating, the box body is of a double-layer vacuum structure, the cross section of the box, be equipped with heat dissipation mechanism directly over the heat dissipation window, hyperbaric chamber, low-pressure chamber and the indoor portion of transformer all are equipped with voltage monitoring module, current detection module, temperature monitoring module, 4G transmission and remote control module and controller, the outside of box is equipped with proximity sensor and electric shock alarm, proximity sensor evenly distributed is around the box, the electric shock alarm is fixed in the upper end of box, electric connection between proximity sensor and electric shock alarm and the controller, the indoor screen that is equipped with of high-voltage apparatus, the power output end of screen has concatenated low pressure inlet wire intelligence circuit breaker and wisdom power consumption controller in proper order, electric connection between controller and the wisdom power consumption controller.

Furthermore, a sulfur hexafluoride switch is connected in series with the inlet end of the high-pressure chamber, a control mechanism for controlling the sulfur hexafluoride switch to be opened or closed is arranged at a knife switch of the sulfur hexafluoride switch, the control mechanism is electrically connected with the controller, and the control structure is arranged, so that the sulfur hexafluoride switch can be remotely controlled to be opened or closed, and the sulfur hexafluoride switch is more convenient to use while realizing intellectualization.

Further, be equipped with intelligent capacitance compensation cabinet in the low-voltage chamber, electric connection between intelligent capacitance compensation cabinet and the wisdom power consumption controller, but the capacitance compensation cabinet compensates power factor, improves voltage quality.

Further, be equipped with 4G communication module in the wisdom power consumption controller, 4G communication module's setting can monitor the data of transformer substation through supporting app, the terminal such as pc that use, makes it more intelligent.

Further, heat dissipation mechanism is including heat dissipation cover and crane, the heat dissipation cover is the shape of falling V, the expansion radian of heat dissipation cover is greater than the expansion radian of roof, the heat dissipation cover is located the roof directly over to the window that will dispel the heat covers entirely, the one end of crane is fixed in the periphery of heat dissipation window, the bottom surface middle part fixed connection of the other end and heat dissipation cover, and heat dissipation window top sets up the heat dissipation cover and can avoid the rainwater to get into the transformer room, and the height between adjustable heat dissipation cover of elevating system and the heat dissipation window is adjusted radiating effect.

Furthermore, the periphery of the bottom surface of the heat dissipation cover is provided with a mounting seat, a scroll hinged with the mounting seat is arranged in the mounting seat, a steel mesh is wound on the scroll, one end of the steel mesh is fixed on the scroll, the other end of the steel mesh is fixedly connected with the top of the box, the upper surface of heat dissipation window is equipped with fixed connection's wire netting, the one end of crane is fixed in the periphery of wire netting, and the heat dissipation cover sets up the steel mesh all around and can prevent toy etc. to get into the transformer room, avoids arousing the situation of the inside short circuit of transformer, makes the use of transformer safer, and the good play of winding the steel mesh lies in can following the height of heat dissipation cover automatically and extend and return and contract on the spool, and the setting of wire netting can attract the electric arc in the transformer on the one hand, avoids appearing the electric arc and hurts people's situation, and on the other hand also can get into the transformer room to the toy and play certain effect of stopping.

Further, the periphery of crane is equipped with spiral steel sheet, the bleeder vent has evenly been seted up on the steel sheet, the one end and the heat exchanger fixed connection of steel sheet, the other end and the roof fixed connection of steel sheet, spiral steel sheet can play certain guard action to the crane, and can change along with the altitude variation of crane.

Furthermore, the material of the lifting frame is a memory alloy, the lifting frame is spiral, the memory alloy is a nickel-titanium alloy, when the temperature of the nickel-titanium alloy is changed at 40 ℃, the alloy can contract or expand, the shape of the alloy changes, and therefore the lifting of the heat dissipation cover is controlled, the purpose of dissipating heat inside the transformer room is achieved, the lifting frame is controlled through the temperature inside the transformer room, and when the internal temperature is high, the heat dissipation cover is automatically opened to dissipate heat.

Furthermore, the edge all around of heat dissipation window is equipped with the arch that prevents the rainwater and get into, and the arch can effectually avoid strong wind weather, and wind-force blows the rainwater on the roof in the heat dissipation window.

Through the APP that matches with wisdom power consumption controller, can carry out remote control to the transformer substation, can long-rangely realize voltage, the electric current, the parameter setting of power, and have the block terminal, the high-pressure side, the long-range divide-shut brake function of low pressure side, moreover, the crane that the roof top set up can realize the lift of heat exchanger that looses according to the temperature of transformer indoor portion, the temperature to the transformer indoor portion carries out autonomic regulation, and the box adopts double-deck vacuum structure and surface coating reflection of light coating, can effectually separate the inside and the external environment of box, have thermal-insulated function, reduce the influence of outside temperature to the box inside, guarantee that the transformer carries out work in the environment of preferred all the time.

Drawings

Fig. 1 is a schematic cross-sectional view of a mounting base in a front view of an embodiment of the invention.

Fig. 2 is a schematic cross-sectional view of a mounting base in a left side view of an embodiment of the invention.

Fig. 3 is a partial enlarged sectional view of fig. 2 at a0 in accordance with an embodiment of the present invention.

Fig. 4 is a schematic sectional view of a box-type substation according to an embodiment of the present invention.

Fig. 5 is a schematic view illustrating an installation of an isolation screen of a transformer winding machine according to an embodiment of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the high-voltage vacuum circuit breaker comprises a box body 1, a low-voltage chamber 2, a high-voltage chamber 3, a box top 4, a heat dissipation cover 5, a ventilation window 6, a bottom plate 7, a lifting frame 8, a scroll 9, a steel mesh 10, a protrusion 11, a brick wall 12, a cable 13, a Peltier refrigeration sheet 14, a grounding wire 15, a high-polymer moisture-proof plugging agent 16, a cable hole 17, a bidirectional power supply change-over switch 18, a first 4G communication and remote control module 19, a monitor 20, a high-voltage vacuum circuit breaker 21 and a second 4G communication and remote control module 22.

It should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used broadly in the present invention, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The specific implementation process is as follows:

as shown in fig. 1 to 5, a preassembled intelligent box-type substation mainly includes a box-type substation main body and a mounting base, wherein the box-type substation main body is fixedly mounted right above the mounting base. The mounting base mainly comprises a cavity below the bottom surface, a grounding wire 15 is arranged in the cavity below the bottom surface, a brick wall 12 extending out of the ground upwards is arranged at the edge of the bottom surface of the cavity, a nut is embedded in the upper end of the brick wall 12, a bolt hole in the bottom of the box body 1 corresponds to the position of the nut, the box-type substation main body is connected with the base through a bolt, a cable hole 17 penetrating through the brick wall 12 and extending towards the ground horizontally is formed in the bottom of the brick wall 12 of the mounting base, and a ventilation window 6 is arranged on the part, higher than the ground, of the brick wall 12.

The interior of box-type substation main part is low-voltage chamber 2, high-voltage chamber 3 and transformer room, is equipped with the baffle between each room, the zinc sheet that this baffle adopted is equipped with entrance hole and the wire outlet that is convenient for cable 13 to get into on the lower part bottom plate 7 of low-voltage chamber 2 and high-voltage chamber 3, in order to avoid aqueous vapor to enter into high-voltage chamber 3 or low-voltage chamber 2, adopt polymer dampproofing sealant 16 to seal in the entrance hole or the clearance department between wire outlet and cable 13. Because low-pressure chamber 2 and high-pressure chamber 3 are the confined state, the heat can not be discharged, in order to make low-pressure chamber 2 and high-pressure can carry out the heat exchange, be fixed with peltier refrigeration piece 14 on low-pressure chamber 2 and high-pressure chamber 3's bottom plate 7, because peltier refrigeration piece 14's characteristic is, when the circular telegram, one end temperature is low, the temperature of the other end is high, low-pressure chamber 2 and high-pressure chamber 3 inside are the refrigeration end, in the cavity be the heating end, be equipped with small-size fan near peltier refrigeration piece 14, the fan blows the cold air of refrigeration end into low-pressure chamber 2 or high-pressure chamber 3 to cool down to the electronic component inside.

The middle part of roof 4 is equipped with the heat dissipation window, the heat dissipation window is located the top of transformer room, and the side of transformer room is equipped with transom 6, the top of heat dissipation window is equipped with the radiating mechanism who is convenient for the transformer heat dissipation, including heat dissipation cover 5 and crane 8, heat dissipation cover 5 is the shape of falling V, the expansion radian of heat dissipation cover 5 is greater than the expansion radian of roof 4, heat dissipation cover 5 is located directly over roof 4, and to dispel the heat the window full coverage, the one end of crane 8 is fixed in the periphery of heat dissipation window, the bottom surface middle part fixed connection of the other end and heat dissipation cover 5, heat dissipation window top sets up heat dissipation cover 5 and can avoid the rainwater to get into the transformer room, the height between the adjustable heat dissipation cover 5 of elevating system and the heat dissipation window, adjust. The material of crane 8 is memory alloy, and crane 8 is the spiral, and memory alloy is nickel-titanium alloy, because nickel-titanium alloy temperature when changing about 40 ℃, the alloy will contract or expand for its form changes, thereby control the lift of heat exchanger 5 that looses, reaches the mesh of dispelling the heat to transformer room inside, and control crane 8 through the temperature of transformer room inside, when inside temperature is higher, automatic opening heat exchanger 5 dispels the heat.

The periphery of the bottom surface of the heat dissipation cover 5 is provided with a mounting seat, a scroll 9 hinged with the mounting seat is arranged in the mounting seat, a steel mesh 10 is wound on the scroll 9, one end of the steel mesh 10 is fixed on the scroll 9, the other end of the steel mesh 10 is fixedly connected with the box top 4, the upper surface of the heat dissipation window is provided with a fixedly connected wire mesh, the one end of crane 8 is fixed in the periphery of wire netting, the heat exchanger 5 that looses sets up all around the steel mesh 10 can prevent toy etc. to get into the transformer room, avoid arousing the situation of the inside short circuit of transformer, make the use of transformer safer, the good play of winding steel mesh 10 on spool 9 lies in can automatically following the height of heat exchanger 5 and extend and retract, the setting of wire netting can attract the electric arc in the transformer on the one hand, avoid appearing the electric arc and hinder the people's situation, on the other hand also can get into the transformer room to the toy and play certain effect of stopping. Preferably, the periphery of the lifting frame 8 is provided with a spiral steel sheet, air holes are uniformly formed in the steel sheet, one end of the steel sheet is fixedly connected with the heat dissipation cover 5, the other end of the steel sheet is fixedly connected with the box top 4, and the spiral steel sheet can play a certain protection role on the lifting frame 8 and can change along with the height change of the lifting frame 8. Preferably, the edge around the radiator-fan is equipped with the arch 11 that prevents the rainwater entering, and protruding 11 can effectually avoid the strong wind weather, and the rainwater on the roof 4 is blown to the radiator-fan to wind-force.

The sulfur hexafluoride switch is connected in series with the inlet end of the high-pressure chamber 3, the switch blade of the sulfur hexafluoride switch is provided with a control mechanism for controlling the sulfur hexafluoride switch to be opened or closed, the control mechanism is electrically connected with the controller, and the control structure is arranged, so that the sulfur hexafluoride switch can be remotely controlled to be opened or closed, the intellectualization is realized, and the sulfur hexafluoride switch is more convenient to use. Be equipped with intelligent capacitance compensation cabinet in the low-voltage chamber 2, electric connection between intelligent capacitance compensation cabinet and the wisdom power consumption controller, but the capacitance compensation cabinet compensates power factor, improves voltage quality.

In order to realize the monitoring of the internal working condition of the main body of the box-type transformer substation, a voltage monitoring module, a current detecting module, a temperature monitoring module and a controller are arranged in a box body 1, the voltage monitoring module and the current monitoring module are electrically connected with a transformer in a transformer chamber, temperature monitoring modules are arranged in a high-voltage chamber 3, a low-voltage chamber 2 and the transformer chamber, the voltage monitoring module, the current monitoring module and the temperature monitoring module are electrically connected with the controller, a proximity sensor and an electric shock alarm are arranged outside the box body 1, the proximity sensor is uniformly distributed around the box body 1, the electric shock alarm is fixed at the upper end of the box body 1, the proximity sensor, the electric shock alarm and the controller are electrically connected, an isolation screen is arranged in the low-voltage chamber 2, and the power output end of the isolation screen is sequentially connected with an intelligent low, the controller is electrically connected with the intelligent power utilization controller. Be equipped with 4G communication module in the wisdom power consumption controller, 4G communication module's setting can monitor the data of transformer substation through supporting app, the terminal such as pc that use, makes it more intelligent. Through APP with the matching of wisdom power consumption controller, can carry out remote control to the transformer substation, can long-rangely realize the parameter setting of voltage, electric current, power, and have block terminal, high-voltage side, the long-range divide-shut brake function of low pressure side.

In order to realize intelligent power utilization and output of isolation voltage, a three-phase primary winding is arranged in a transformer, electromagnetic induction of an iron core is converted into a four-phase secondary winding to generate four-phase 0.4KV voltage, an isolation screen and the iron core are fixed by welding a high-quality red copper plate through an argon welder, the four-phase secondary winding is converted into a four-phase tertiary winding through the isolation screen to output the four-phase isolation voltage, two groups of voltage output ends such as the four-phase 0.4KV voltage and the four-phase 0.4KV isolation voltage are led out from the output end of the transformer at the same time, the 0.4KV voltage and the 0.4KV isolation voltage are output by one transformer at the same time, the power transformation cost is greatly reduced, the safe power utilization requirement of capital construction is met, and power transmission management. Preferably, the inlet wire end of the high-voltage chamber 3 is connected in series with a sulfur hexafluoride switch, and is internally provided with a high-voltage vacuum short-circuiting device 21, a high-voltage control, monitoring 20, an APP remote controller and other open or closed control mechanisms, the control mechanisms are electrically connected with the controllers, and the control structures are arranged, so that the high-voltage vacuum short-circuiting device 21 can be remotely controlled to open and close, the monitoring function is realized, the high-voltage power transmission is intelligent, and the use is more convenient.

The transformer includes the fixed mounting position of isolation screen and iron core, through high-quality copper plate and iron core welded fastening, transformer room voltage output channel design between transformer room and low-voltage chamber 2, inside is equipped with bidirectional power supply change over switch 18, through the screw with voltage output channel fixes, and the ordinary voltage output of transformer output and the isolated voltage output of transformer output are connected respectively to two inputs of bidirectional power supply change over switch 18, and electric connection is passed through with the input of low-voltage chamber 2 to bidirectional power supply change over switch 18's output. Output voltage switches the passageway main part and is first 4G communication and remote control module 19, all installs in output voltage switches the passageway including main part components such as 4G wireless transmitter and APP remote control switch and two-way power supply change over switch 18 to pass through electric connection with two power supply change over switch, through 4G signal control two-way power supply change over switch 18, accomplish 0.4KV power and 0.4KV isolated power and switch in real time, provide convenient for transmission of electricity management.

Be equipped with high voltage controller, high-pressure vacuum short-circuiting ware 21, control 20, second 4G communication and remote control module 22 (4G wireless repeater and APP remote control ware) in the high-pressure chamber 3, realize high-voltage transmission's remote control through 4G wireless repeater and APP remote control ware.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a prepackage type intelligence box-type substation, includes box-type substation main part and mounting base, the box-type substation main part is fixed in mounting base's top, the box-type substation main part includes from last to fixed connection's box down, bottom plate and roof, the inside of box is equipped with the baffle, the baffle divide into low-pressure chamber, hyperbaric chamber and transformer room with the box, low-pressure chamber and hyperbaric chamber are located the both sides of box, the transformer room is located the middle part of box, be equipped with dual output transformer and two-way power supply change over switch in the transformer room, the electric property is connected its characterized in that in order between hyperbaric chamber, transformer room and the low-pressure chamber: the outer surface of the box body is coated with a reflective coating, the box body is of a double-layer vacuum structure, the cross section of the box top is of an inverted V-shaped structure, a heat dissipation window is arranged in the middle of the upper end of the high-voltage chamber, a heat dissipation mechanism is arranged right above the heat dissipation window, a voltage monitoring module, a current detection module, a temperature monitoring module, a 4G emission and remote control module and a controller are arranged in the high-voltage chamber, the low-voltage chamber and the transformer chamber, the external part of the box body is provided with proximity sensors and an electric shock alarm, the proximity sensors are uniformly distributed on the periphery of the box body, the electric shock alarm is fixed at the upper end of the box body, the proximity sensor, the electric shock alarm and the controller are electrically connected, the indoor screen that is equipped with of high-voltage apparatus, the power output end of screen has concatenated low-voltage inlet wire intelligence circuit breaker and wisdom power consumption controller in proper order, electric connection between controller and the wisdom power consumption controller.

2. The pre-installed intelligent box-type substation of claim 1, characterized in that: the inlet end of the high-pressure chamber is connected with a sulfur hexafluoride switch in series, a switch blade of the sulfur hexafluoride switch is provided with a control mechanism for controlling the sulfur hexafluoride switch to be opened or closed, and the control mechanism is electrically connected with the controller.

3. The pre-installed intelligent box-type substation of claim 1, characterized in that: the low-voltage chamber is internally provided with an intelligent capacitance compensation cabinet, and the intelligent capacitance compensation cabinet is electrically connected with the intelligent power consumption controller.

4. The pre-installed intelligent box-type substation of claim 1, characterized in that: A4G communication module is arranged in the intelligent power utilization controller.

5. The pre-installed intelligent box-type substation of claim 1, characterized in that: the heat dissipation mechanism comprises a heat dissipation cover and a lifting frame, the heat dissipation cover is inverted V-shaped, the expansion radian of the heat dissipation cover is larger than that of the box top, the heat dissipation cover is located right above the box top and covers the heat dissipation window completely, one end of the lifting frame is fixed on the periphery of the heat dissipation window, and the other end of the lifting frame is fixedly connected with the middle of the bottom surface of the heat dissipation cover.

6. The pre-installed intelligent box substation of claim 1 or 5, characterized in that: the bottom surface of heat dissipation cover all is equipped with the mount pad all around, be equipped with articulated spool with it in the mount pad, it has the steel mesh to be equipped with the winding on the spool, the one end of steel mesh is fixed on the spool, the other end and the roof of a case fixed connection of steel mesh, the upper surface of heat dissipation window is equipped with fixed connection's wire netting, the periphery at the wire netting is fixed to the one end of crane.

7. The pre-installed intelligent box substation of claim 1 or 5, characterized in that: the periphery of the lifting frame is provided with a spiral steel sheet, air holes are uniformly formed in the steel sheet, one end of the steel sheet is fixedly connected with the heat dissipation cover, and the other end of the steel sheet is fixedly connected with the box top.

8. The pre-installed intelligent box-type substation of claim 5, characterized in that: the lifting frame is made of memory alloy and is spiral.

9. The pre-installed intelligent box-type substation of claim 8, characterized in that: the memory alloy is a nickel-titanium alloy.

10. The pre-installed intelligent box-type substation of claim 1, characterized in that: the periphery of the heat dissipation window is provided with bulges for preventing rainwater from entering.