CN112350297B - A subway overhead line DC power supply integrated device - Google Patents
A subway overhead line DC power supply integrated device Download PDFInfo
- Publication number
- CN112350297B CN112350297B CN202011149683.9A CN202011149683A CN112350297B CN 112350297 B CN112350297 B CN 112350297B CN 202011149683 A CN202011149683 A CN 202011149683A CN 112350297 B CN112350297 B CN 112350297B
- Authority
- CN
- China
- Prior art keywords
- switch
- isolating switch
- main body
- isolating
- contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 32
- 229910052802 copper Inorganic materials 0.000 claims description 32
- 239000010949 copper Substances 0.000 claims description 32
- 238000012806 monitoring device Methods 0.000 claims description 30
- 238000003860 storage Methods 0.000 claims description 25
- 238000012546 transfer Methods 0.000 claims description 20
- 238000012423 maintenance Methods 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 14
- 238000004891 communication Methods 0.000 claims description 11
- 230000001502 supplementing effect Effects 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims 2
- 238000009413 insulation Methods 0.000 claims 2
- 239000010959 steel Substances 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 4
- 238000002955 isolation Methods 0.000 description 7
- 238000012545 processing Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000002146 bilateral effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000009545 invasion Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 239000005341 toughened glass Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for DC mains or DC distribution networks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M3/00—Feeding power to supply lines in contact with collector on vehicles; Arrangements for consuming regenerative power
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
- H01H31/10—Interlocking mechanisms for interlocking two or more switches
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/16—Earthing arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/24—Circuit arrangements for boards or switchyards
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00004—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the power network being locally controlled
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Human Computer Interaction (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention relates to a subway contact net direct current power supply integrated device which comprises a main body, wherein a first switch module, a second switch module and a cross-region load switch are arranged in the main body, the first switch module comprises a first isolating switch, the second switch module comprises a second isolating switch, the first isolating switch and the second isolating switch are three-station isolating switches, and the three-station isolating switches comprise three independent stations including a combining position, a dividing position and a grounding position. The invention provides a direct current power supply integrated device and method for a subway contact network, which are characterized in that the contact network disconnecting switch is remotely visible in the closing position, the dividing position and the grounding state, the intelligent recognition function of an isolated fracture image is realized, the large-bilateral mode switching can be performed without affecting the driving operation under load, no external interlocking is adopted, the internal interlocking is simple, the misoperation can be effectively prevented, and the device is safe and reliable and has lower cost.
Description
Technical Field
The invention relates to the technical field of rail transit direct current power supply, in particular to a subway contact net direct current power supply integrated device.
Background
The existing subway contact network (rail) direct current power supply equipment is shown in fig. 2 and comprises a contact network cross-region combined switch and a contact network grounding switch, wherein the contact network cross-region combined switch consists of two contact network isolating switches 101 and 102 and a cross-region isolating switch 103.
The internet disconnecting switches 101 and 102 are used as standard configurations of a subway direct current power supply system to connect a substation feeder line and a contact network and are used for switching the connection state and the isolation state of the contact network and the substation feeder line. The cross-region isolating switch 103 is used for connecting the contact network electric segments of the left and right adjacent stations and is used for switching the large and double-side power supply modes, but because the cross-region isolating switch cannot operate with load, a necessary operation interlocking function is required to be set, and three stations are powered off to perform no-load switching operation, so that passenger cars are temporarily stopped, and subway driving is influenced.
In order to ensure the use and operation safety of the equipment, the feedback electric signal states of the internet surfing isolating switch and the grounding isolating switch are required to be consistent with the physical switch states, remote images (videos) are required to be visible, only the grounding state in the current switch states (internet surfing, isolating and grounding) is visible, and all the states can not be visible and can not be judged by human eyes.
To sum up, the shortcomings in the prior art are summarized as 1) the handoff isolation switch 103 cannot operate with load, when the large bilateral mode is switched, the subway operation is influenced by stopping, 2) complex electrical interlocking relationship exists between the internet isolation switches 101 and 102 and the grounding isolation switch, misoperation is easy, 3) the internet isolation switches 101 and 102 and the grounding isolation switch have function overlapping, construction cost is increased, and 4) the physical states of the internet isolation switches 101 and 102 and the grounding switch cannot be all remotely visible and are required to be judged manually.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a DC power supply integrated device for a subway contact network.
The invention can be realized by the following technical scheme:
A DC power supply integrated device of a subway contact net comprises a main body of the device, wherein a first switch module, a second switch module and a cross-region load switch are arranged in the main body;
the first switch module comprises a first isolating switch, and the second switch module comprises a second isolating switch;
The first isolating switch and the second isolating switch are three-station isolating switches and are provided with three independent stations, wherein the three stations comprise a combining position, a dividing position and a grounding position;
The fixed contact of the first isolating switch is connected with a corresponding feeder line of a direct current switch cabinet of an external substation, the moving contact of the first isolating switch is connected with an external contact net, the grounding contact of the first isolating switch is connected with a subway rail, the fixed contact of the second isolating switch is connected with the other corresponding feeder line of the direct current switch cabinet of the external substation, the moving contact of the second isolating switch is connected with the external contact net, the grounding contact of the second isolating switch is connected with the subway rail, the moving contact of the first isolating switch is connected with the moving contact of the cross-zone load switch, and the moving contact of the second isolating switch is connected with the moving contact of the cross-zone load switch.
In some embodiments, the first switch module further comprises a first camera and a first light-compensating lamp mounted beside the first isolating switch, and the second switch module further comprises a second camera and a second light-compensating lamp mounted beside the second isolating switch.
In some embodiments, the system further comprises a monitoring device, an image intelligent recognition and storage device and a network switch, wherein the monitoring device, the image intelligent recognition and storage device and the network switch are arranged in the main body;
the first switch module and the second switch module are electrically connected with the monitoring device, the first switch module and the second switch module are in communication connection with the image intelligent recognition and storage device network cable, the image intelligent recognition and storage device is in communication connection with the monitoring device network cable, and the image intelligent recognition and storage device and the monitoring device are in communication connection with the network switch network cable.
In some embodiments, the first isolating switch and the second isolating switch are mirror images of each other and are installed on the lower portion in the main body back to back, when the first isolating switch and the second isolating switch are in the closed position, the moving contact is all driven to the rear side of the device, when the first isolating switch and the second isolating switch are grounded, the moving contact is all driven to the front side of the device, and the cross-region load switch is installed above the first isolating switch.
In some embodiments, the device further comprises a plurality of connection devices disposed in the main body, wherein the plurality of connection devices comprise two feeder connection interfaces, two contact network connection interfaces, two handover copper bars, two internet access copper bars, two feeder transfer copper bars and two grounding transfer copper bars;
The fixed contacts of the first isolating switch and the second isolating switch are respectively connected with corresponding feeder line connecting interfaces through two feeder line switching copper bars;
the movable contacts of the first isolating switch and the second isolating switch are respectively connected with the corresponding contact net connecting interfaces through two internet access transfer copper bars;
the grounding contacts of the first isolating switch and the second isolating switch are respectively connected with an external subway rail through two grounding transfer copper bars;
And the moving contact and the fixed contact of the cross-region load switch are respectively connected with the two internet-surfing transfer copper bars through the two cross-region transfer copper bars.
In some embodiments, the device further comprises a bus high-pressure chamber and a low-pressure chamber which are arranged in the main body, wherein the bus high-pressure chamber is positioned in the middle part of the main body, and the low-pressure chamber is positioned at one side of the main body;
the image intelligent recognition and storage device is arranged at the lower part of the low-pressure chamber;
the monitoring device is arranged on the front surface of the inner side of the low-pressure chamber.
In some embodiments, the network switch further comprises an external terminal chamber disposed on a front side of the bottom in the main body, the network switch being mounted within the external terminal chamber.
In some embodiments, the device further comprises two sets of residual pressure relief devices, wherein the two sets of residual pressure relief devices are respectively arranged at the left rear side and the right rear side of the inner bottom of the main body.
In some embodiments, the system further comprises a waterproof heat shield, a top sealing assembly, a top fixing support, a top junction box, a base, a plurality of observation windows, two protective doors and two maintenance steps;
the waterproof heat shield is fixedly connected with the shell of the main body;
The top sealing assembly, the top junction box and the top fixing support are mutually fixed and are all fixed at the top of the shell of the main body, and the top fixing support is fixed with a cable bracket of a cable entering and exiting the main body;
The base is fixed at the bottom end of the shell of the main body;
the two protective doors are symmetrically arranged on the left side and the right side of the main body respectively;
the plurality of observation windows are arranged on the shell of the main body, the protective door and the top junction box;
The two maintenance steps are respectively connected with the ground and the bottom ends of the corresponding protective doors.
Compared with the prior art, the direct current power supply integrated device and method for the subway overhead line system have the advantages that the on-site grounding state and the off-site grounding state of the overhead line system isolating switch are both visible remotely, the intelligent identification function of isolating fracture images is achieved, large-bilateral mode switching can be conducted without affecting driving under load, external interlocking is omitted, internal interlocking is simple, misoperation can be effectively prevented, and the device is safe and reliable and low in cost.
Drawings
Other objects and advantages of the present invention will become apparent from the following description of the invention with reference to the accompanying drawings, which provide a thorough understanding of the present invention.
Fig. 1 is a schematic diagram of a topological structure of a dc power supply integrated device of a subway overhead line system provided by the invention;
FIG. 2 is a schematic diagram of the topology of a prior art solution;
fig. 3 is a schematic diagram of connection of internal modules of the integrated dc power supply device for the subway overhead line system;
Fig. 4 is an internal structure front view of the integrated dc power supply device for the subway overhead line system provided by the invention;
FIG. 5 is a left side view and a right side view of FIG. 1;
fig. 6 is an external schematic view of the dc power supply integrated device of the subway overhead line system provided by the invention;
fig. 7 is a schematic installation diagram of the dc power supply integrated device for the subway overhead line system provided by the invention on a platform side in a tunnel.
Reference numerals illustrate:
1. The waterproof heat shield comprises a main body, a waterproof heat shield, a 3 top sealing component, a 4 base, a5 observation window, a 6 maintenance step, a 7 protection door, a 8 top junction box, a 9 top fixing support, 101, 102, a surfing isolating switch, 103, a cross-over isolating switch, 11, a first isolating switch, 111, a first camera, 112, a first light supplementing lamp, 12, a second isolating switch, 121, a second camera, 122, a second light supplementing lamp, 13, a cross-over load switch, 14, an image intelligent identification and storage device, 15, a network switch, 150, an external terminal chamber, 16, a monitoring device, 161, an auxiliary control component, 171, a feeder line connection interface, 172, a contact line connection interface, 173, a cross-over copper bar, 174, a surfing switching copper bar, 175, a feeder line switching copper bar, 176, a grounding switching copper bar, 181, a bus high-voltage chamber, 182, a low-voltage chamber, 19, a residual voltage relief device, 20, a subway vehicle, 30, 40, a platform side wall, 50 and a surfing cable.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present invention fall within the protection scope of the present invention.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs.
The invention provides a subway contact net direct current power supply integrated device, which comprises a main body 1, wherein a first switch module, a second switch module and a cross-zone load switch 13 are arranged in the main body 1, the first switch module comprises a first isolating switch 11, the second switch module comprises a second isolating switch 12, the first isolating switch 11 and the second isolating switch 12 are three-station isolating switches and are provided with three independent stations, the three stations comprise a combining position, a dividing position and a grounding position, a fixed contact of the first isolating switch 11 is connected with a corresponding feeder line of a direct current switch cabinet of an external substation, a moving contact of the first isolating switch 11 is connected with the external contact net, a grounding contact of the first isolating switch 11 is connected with a subway rail (walking rail), a fixed contact of the second isolating switch 12 is connected with the other corresponding group of feeder line of the direct current switch cabinet of the external substation, a moving contact of the second isolating switch 12 is connected with the external contact, a moving contact of the first isolating switch 11 is connected with the subway rail (walking rail), and a moving contact of the second isolating switch 12 is connected with the cross-zone load switch 13.
Compared with the scheme in the prior art shown in fig. 2, the scheme of the invention provides a brand new overhead line system power supply topological structure, wherein an overhead line isolating switch and a grounding isolating switch in the overhead line system power supply topological structure are designed to be integrated into an overhead line grounding three-station isolating switch in a function fusion manner, namely, a first isolating switch 11 and a second isolating switch 12, so that external interlocking is changed into internal mechanical interlocking, the two three-station isolating switches are provided with three independent position states of switching on, switching off and grounding, wherein the switching on position realizes a feeder line overhead line isolating function, the switching off position realizes an overhead line isolating function, the grounding position realizes an overhead line maintenance grounding function, and in addition, the overhead line isolating switch in the overhead line system power supply topological structure is designed to be a load-off switch 13, so that a certain station direct current traction power supply device can be automatically disconnected according to requirements under the condition of not affecting operation, the maintenance skylight time of subway power supply device is prolonged, and labor intensity is reduced.
With further reference to fig. 3, the first switch module further includes a first camera 111 and a first light compensating lamp 112 mounted beside the first isolating switch 11, and the second switch module further includes a second camera 121 and a second light compensating lamp 122 mounted beside the second isolating switch 12. The first camera 111 and the second camera 121 may be network cameras.
Preferably, the device further comprises a monitoring device 16, an image intelligent recognition and storage device 14 and a network switch 15 which are arranged in the main body 1, wherein the first switch module and the second switch module are electrically connected with the monitoring device 16, the first switch module and the second switch module are connected with the image intelligent recognition and storage device 14 in a network line communication manner, the image intelligent recognition and storage device 14 is connected with the monitoring device 16 in a network line communication manner, the image intelligent recognition and storage device 14 and the monitoring device 16 are connected with the network switch 15 in a network line communication manner, and the network switch 15 can be connected with an external central control room network line in a network line communication manner.
The intelligent image processing device comprises a first switch module, a second switch module, a monitoring device 16, a first camera 111, a first light supplementing lamp and a second light supplementing lamp, wherein the first switch module and the second switch module transmit remote measurement and remote signaling signals to the relevant parts of the monitoring device 16, the monitoring device 16 transmits remote control signals to the first switch module and the second switch module, the first camera 111 of the first switch module photographs and videos (the first light supplementing lamp 112 supplements light automatically when photographing), the second camera 121 of the second switch module photographs and videos (the second light supplementing lamp 122 supplements light automatically when photographing) in real time, the intelligent image processing results of the moment are compared with the intelligent image processing results of the two isolating switches by the monitoring device 16, the judging results are fed back to the monitoring device 16 for video linkage and abnormal alarming, and the intelligent image processing results of the first switch module are stored in situ by the image intelligent image processing and storing device 14 for external calling and checking by a network switch 15.
With further reference to fig. 4 and 5, the first isolating switch 11 and the second isolating switch 12 are mirror images (mirror images plane in the seam perpendicular to the front) and are installed back to back at the lower part in the main body 1, when the first isolating switch and the second isolating switch are in the closed position, the moving contact is all driven to the rear side of the device, when the first isolating switch and the second isolating switch are in the grounded position, the moving contact is all driven to the front side of the device, and the load-across switch 13 is installed above the first isolating switch 11.
Specifically, the device further comprises a plurality of connecting devices arranged in the main body 1, wherein the connecting devices comprise two feeder line connecting interfaces 171, two contact net connecting interfaces 172, two cross-over copper bars 173, two internet-surfing transfer copper bars 174, two feeder line transfer copper bars 175 and two grounding transfer copper bars 176, fixed contacts of the first disconnecting switch 11 and the second disconnecting switch 12 are respectively connected with the corresponding feeder line connecting interfaces 171 through the two feeder line transfer copper bars 175, moving contacts of the first disconnecting switch 11 and the second disconnecting switch 12 are respectively connected with the corresponding contact net connecting interfaces 172 through the two internet-surfing transfer copper bars 174, grounding contacts of the first disconnecting switch 11 and the second disconnecting switch 12 are respectively connected with external subway rails through the two grounding transfer copper bars 176, and moving contacts and fixed contacts of the cross-over load switch 13 are respectively connected with the two internet-surfing transfer copper bars 174 through the two cross-over copper bars 173.
The device also comprises a bus high-pressure chamber 181 and a low-pressure chamber 182 which are arranged in the main body 1, wherein the bus high-pressure chamber 181 is positioned in the middle part of the main body 1, the low-pressure chamber 182 is positioned on one side of the main body 1, the image intelligent recognition and storage device 14 is arranged at the lower part of the low-pressure chamber 182, and the monitoring device 16 is arranged on the front side of the inner side of the low-pressure chamber 182 so as to realize the functions of three remote control (remote signaling, remote measurement and remote control).
The device also comprises an external terminal chamber 150 arranged at the front side of the bottom in the main body 1, wherein the network switch 15 is arranged in the external terminal chamber 150, and the external terminal chamber 150 can be internally provided with an optical fiber terminal box and various external interface terminals for external communication and interaction.
The two cameras are connected with the intelligent image recognition and storage device 14 through network cables, can transmit images and video data to the intelligent image recognition and storage device 14 in real time for storage and analysis processing, and the two light supplementing lamps are connected with the monitoring device 16 through wires, so that the control of the monitoring device 16 on the light supplementing lamps can be realized, wherein when the monitoring device 16 sends an operation instruction to the isolating switch, the light supplementing lamps are turned on in advance for 1s (before the isolating switch starts to act) and are turned off for 1s (after the isolating switch acts), and the video and the images are ensured to be clear in the action process of the isolating switch. The monitoring device 14 is connected with the network cable and the image intelligent recognition and storage device 14 through the network cable, the monitoring device 14 transmits a real-time state signal of the isolating switch to the image intelligent recognition and storage device 14, the image intelligent recognition and storage device 14 compares the real-time state signal with an image intelligent recognition result, and finally the comparison result is fed back to the monitoring device 14. The monitoring device 14 and the image intelligent recognition and storage device 14 are connected with the external terminal chamber 150 through network cable connection, so that the interaction of the three remote signals of the device and the transmission of video image signals are realized.
The device also comprises two sets of residual pressure relief devices 19, wherein the two sets of residual pressure relief devices 19 are respectively arranged at the left rear side and the right rear side of the inner bottom of the main body 1. The residual voltage release device 19 mainly comprises a bipolar contactor, a fuse, a voltage sensor and a discharge resistor, and the parts are connected in series. In order to prevent the three-station isolating switch from being grounded under load, the residual voltage discharging device 19 is bridged between the moving contact and the grounding contact of the two three-station isolating switches, so as to carry out residual voltage detection and discharging investment. The residual voltage discharging device 19 is controlled by the monitoring device 16 and has the specific functions of 1) carrying out electricity inspection before the three-station disconnecting switch is grounded, when the voltage of the contact network is larger than or equal to UL (adjustable, recommended value 600V), judging that the contact network is electrified, prohibiting the earthing operation of the disconnecting switch and prohibiting the input of a discharging loop, 2) when the voltage of the contact network is smaller than U0, judging that the contact network has residual voltage, inputting the discharging loop, and 3) when the voltage of the UL is larger than or equal to U0, after the discharging loop is input for a preset time T (adjustable), the voltage of the contact network is smaller than U0, discharging is successful, and the disconnecting switch can be operated to be grounded, if the detected voltage is larger than U0, a discharging fault is reported, and the disconnecting switch is locked to be operated to be grounded.
With further reference to fig. 6, the device further comprises a waterproof heat shield 2, a top sealing assembly 3, a top fixing support 9, a top junction box 8, a base 4, a plurality of observation windows 5, two protection doors 7 and two maintenance steps 6, wherein the waterproof heat shield 2 is fixedly connected with the shell of the main body 1, the top sealing assembly 3, the top junction box 8 and the top fixing support 9 are mutually fixed and are all fixed on the top of the shell of the main body 1, the top fixing support 9 is fixed with a cable support of a cable entering and exiting the main body 1, the base 4 is fixed at the bottom end of the shell of the main body 1, the two protection doors 7 are symmetrically arranged on the left side and the right side of the main body 1 respectively, the plurality of observation windows 5 are arranged on the shell of the main body 1, the protection doors 7 and the top junction box 8, and the two maintenance steps 6 are respectively connected with the ground and the bottom ends of the corresponding protection doors 7.
Specifically, the surface of the maintenance step 6 adopts an anti-skid design, the left and right sets of maintenance steps 6 are respectively connected with the base 4 through bolts, the base 4 is fixedly connected with the foundation through anchor bolts, sufficient space is reserved for turning of the lower incoming line connecting cable, and meanwhile the operation height of maintenance personnel is reduced. When the protective door 7 is closed, the shell of the main body 1 is of a fully-closed structure, and the shell of the main body 1 is fixedly connected with the base 4 through foundation bolts. The observation window 5 is made of toughened glass, and is arranged on the totally-enclosed shell in a sealing and nesting mode, so that operation maintenance personnel can conveniently observe the fracture condition of the isolating switch when looking at the side of the platform. The left side guard gate and the right side guard gate are mirror symmetry structures, the door opening direction is guaranteed to exceed the platform side, and the invasion of the false opening of the cabinet door is prevented. The waterproof heat shield 2 is fixedly connected with the totally-enclosed shell in a mode of externally buckling, sealing and internally bolting, so that the waterproof heat shield is waterproof, heat-insulating, dust-proof and the like for each component part in the device. The top junction box 8 adopts the mode of outer knot seal and inside bolted connection to be connected fixedly with waterproof heat shield 2, provides abundant physical protection for cable junction and copper bar in the top junction box 8, and seals observation window 5 that nested installation toughened glass made in top junction box 8 front to the operation maintainer can be convenient when the platform side is patrolled and examined the connection condition of top cable. The top sealing component 3 is bolted and fixed with the top junction box 8 through a flange plate and a sealing ring, the top sealing component 3 body is required to be provided with a crimping device, and the physical gap between the cable and the sealing component is eliminated, so that the requirements of top water resistance and dust resistance are met, and the protection level exceeds IP54. The top fixing support 9 is welded on the top junction box 8, and the top fixing support 9 is fixed with a cable support of a top in-out cable, so that the top and the bottom of the integrated device are fixed simultaneously, and the working stability under the random vibration and piston wind alternating pressure environment in a tunnel is further enhanced.
Referring to fig. 7, the invention designs a device structure for facilitating the installation of a platform side in a tunnel, wherein the integrated device is designed to be in a line-in and line-out mode, the integrated device is connected with a contact net 30 through an upper net cable 50 so as to meet the shortest requirement of the upper net cable, the integrated device is designed to be in a fully-closed structure, a cable sealing component is arranged at the top so as to prevent water leakage or water seepage at the top and meet the requirement of an integral protection level IP54, a clean and proper running environment is provided for each part in the integrated device (each main component in the integrated device cannot directly withstand severe environments such as water drops, salt mist, dust and the like in the tunnel), the integrated device is designed to be in a mirror image structure with left and right maintenance, a manual operating mechanism of the integrated device is designed to be close to a side wall 40 so as to meet the requirement of equipment invasion in the tunnel, the depth of the integrated device is small in size, the corresponding wind section is small, the equipment structure stability under the effect of a tunnel piston wind is improved, the integrated device is installed on the tunnel side, an operation maintenance surface is parallel to the section of the tunnel, and the installation position is considered to be in a complete door opening condition, and the distance from the platform side is greater than 800mm from the platform side to the platform side by taking the requirement of the door opening is greater than 1500mm.
In summary, in the existing scheme, the overhead contact system is only visible in grounding, the running is influenced by the switching of the large bilateral modes, the interlocking between equipment is complex, 6 sets of devices (2 sets of Internet surfing cross-region devices and 4 sets of visual grounding devices) are needed for a single station, a station-level network server is additionally arranged to independently store and process images, the images are required to be independently networked, and the overall searching and operation and maintenance cost is relatively high. The integrated device provided by the invention has the advantages that the contact network disconnecting switch is in a position, the split grounding is visible, the running is not affected by the switching of the large bilateral mode, the external interlocking is not needed, the internal interlocking is simple, the equipment safety is high, only two sets of integrated devices are needed for a single station, the number is small, the number of the integrated devices is small, the image storage and the image processing are finished in the device body, and the overall searching and operation and maintenance cost is relatively low.
While the foregoing is directed to embodiments of the present invention, other and further details of the invention may be had by the present invention, it should be understood that the foregoing description is merely illustrative of the present invention and that no limitations are intended to the scope of the invention, except insofar as modifications, equivalents, improvements or modifications are within the spirit and principles of the invention.
Claims (6)
1. The direct-current power supply integrated device for the subway contact network is characterized by comprising a main body (1) of the device, wherein a first switch module, a second switch module and a cross-region load switch (13) are arranged in the main body (1);
The first switch module comprises a first isolating switch (11), and the second switch module comprises a second isolating switch (12);
the first isolating switch (11) and the second isolating switch (12) are three-station isolating switches and are provided with three independent stations, wherein the three stations comprise a combining position, a dividing position and a grounding position;
The fixed contact of the first isolating switch (11) is connected with a corresponding feeder line of a direct current switch cabinet of an external substation, the moving contact of the first isolating switch (11) is connected with an external contact network, the grounding contact of the first isolating switch (11) is connected with a subway steel rail, the fixed contact of the second isolating switch (12) is connected with another corresponding feeder line of the direct current switch cabinet of the external substation, the moving contact of the second isolating switch (12) is connected with the external contact network, the grounding contact of the second isolating switch (12) is connected with the subway steel rail, and the moving contact of the first isolating switch (11) is connected with the moving contact of the cross-region load switch (13), and the moving contact of the second isolating switch (12) is connected with the fixed contact of the cross-region load switch (13);
The first switch module further comprises a first camera (111) and a first light supplementing lamp (112) which are arranged beside the first isolating switch (11), and the second switch module further comprises a second camera (121) and a second light supplementing lamp (122) which are arranged beside the second isolating switch (12);
The first isolating switch (11) and the second isolating switch (12) are of mirror image structures and are arranged on the lower part in the main body (1) back to back, and the cross-region load switch (13) is arranged above the first isolating switch (11);
The waterproof heat insulation device further comprises a waterproof heat insulation cover (2), a top sealing assembly (3), a top fixing support (9), a top junction box (8), a base (4), a plurality of observation windows (5), two protective doors (7) and two maintenance steps (6);
The waterproof heat shield (2) is fixedly connected with the shell of the main body (1);
The top sealing assembly (3), the top junction box (8) and the top fixing support (9) are mutually fixed and are fixed at the top of the shell of the main body (1), and the top fixing support (9) is fixed with a cable bracket of a cable entering and exiting the main body (1);
the base (4) is fixed at the bottom end of the shell of the main body (1);
The two protective doors (7) are symmetrically arranged on the left side and the right side of the main body (1) respectively;
The plurality of observation windows (5) are arranged on the shell of the main body (1), the heights of the observation windows of the main body (1) are consistent with the heights of the moving contacts of the first isolating switch (11) and the second isolating switch (12), and the observation windows are arranged on the protective door (7) and the top junction box (8);
The two maintenance steps (6) are respectively connected with the ground and the bottom ends of the corresponding protective doors (7).
2. The integrated device for direct current power supply of the subway contact network according to claim 1, further comprising a monitoring device (16), an intelligent image recognition and storage device (14) and a network switch (15) which are arranged in the main body (1);
The first switch module and the second switch module are electrically connected with the monitoring device (16), the first switch module and the second switch module are in network line communication connection with the image intelligent recognition and storage device (14), the image intelligent recognition and storage device (14) is in network line communication connection with the monitoring device (16), and the image intelligent recognition and storage device (14) and the monitoring device (16) are in network line communication connection with the network switch (15).
3. The integrated device for direct current power supply of the subway contact network according to claim 1, further comprising a plurality of connecting devices arranged in the main body (1), wherein the plurality of connecting devices comprise two feeder line connecting interfaces (171), two contact network connecting interfaces (172), two handover copper bars (173), two internet surfing transfer copper bars (174), two feeder line transfer copper bars (175) and two grounding transfer copper bars (176);
The fixed contacts of the first isolating switch (11) and the second isolating switch (12) are respectively connected with corresponding feeder line connecting interfaces (171) through two feeder line switching copper bars (175);
The movable contacts of the first isolating switch (11) and the second isolating switch (12) are respectively connected with corresponding contact net connecting interfaces (172) through two internet-surfing transfer copper bars (174);
the grounding contacts of the first isolating switch (11) and the second isolating switch (12) are respectively connected with an external subway rail through two grounding transfer copper bars (176);
the moving contact and the fixed contact of the cross-region load switch (13) are respectively connected with two internet-surfing transfer copper bars (174) through two cross-region transfer copper bars (173).
4. The integrated device for direct current power supply of the subway contact network according to claim 2, further comprising a bus high-pressure chamber (181) and a low-pressure chamber (182) which are arranged in the main body (1), wherein the bus high-pressure chamber (181) is positioned in the middle part of the main body (1), and the low-pressure chamber (182) is positioned on one side of the main body (1);
The image intelligent recognition and storage device (14) is arranged at the lower part of the low-pressure chamber (182);
the monitoring device (16) is mounted on the inside front face of the low pressure chamber (182).
5. The integrated device for dc power supply of the subway contact network according to claim 2, further comprising an external terminal chamber (150) disposed at the front side of the inner bottom of the main body (1), wherein the network switch (15) is installed in the external terminal chamber (150).
6. The integrated device for direct current power supply of the subway contact network according to claim 1, further comprising two sets of residual voltage discharging devices (19), wherein the two sets of residual voltage discharging devices (19) are respectively arranged on the left rear side and the right rear side of the inner bottom of the main body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011149683.9A CN112350297B (en) | 2020-10-23 | 2020-10-23 | A subway overhead line DC power supply integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011149683.9A CN112350297B (en) | 2020-10-23 | 2020-10-23 | A subway overhead line DC power supply integrated device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112350297A CN112350297A (en) | 2021-02-09 |
| CN112350297B true CN112350297B (en) | 2025-03-18 |
Family
ID=74360005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011149683.9A Active CN112350297B (en) | 2020-10-23 | 2020-10-23 | A subway overhead line DC power supply integrated device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112350297B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114050084A (en) * | 2021-12-02 | 2022-02-15 | 武汉倍诺德开关有限公司 | An integrated subway catenary switching device |
| CN118444204B (en) * | 2024-07-08 | 2024-09-13 | 成都中工电气工程有限公司 | Contact net grounding equipment, loop continuity monitoring device and method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN213484519U (en) * | 2020-10-23 | 2021-06-18 | 郑州地铁集团有限公司 | Subway contact net DC power supply integrated device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101537802B (en) * | 2009-04-16 | 2011-03-09 | 余家华 | Traction power supply system of electrified railway novel AT power supply mode |
| CN107465121A (en) * | 2017-09-04 | 2017-12-12 | 中铁第勘察设计院集团有限公司 | Contact net console mode isolating switch cabinet |
| CN209401991U (en) * | 2018-10-31 | 2019-09-17 | 德雷希尔(西安)电气有限公司 | A kind of visualization load isolation ground connection cabinet |
| CN211126464U (en) * | 2019-10-18 | 2020-07-28 | 武汉中直电气股份有限公司 | Intelligent grounding isolation device |
| CN111370959A (en) * | 2019-12-27 | 2020-07-03 | 中山市明阳电器有限公司 | Power supply and grounding integrated device applied to contact net |
-
2020
- 2020-10-23 CN CN202011149683.9A patent/CN112350297B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN213484519U (en) * | 2020-10-23 | 2021-06-18 | 郑州地铁集团有限公司 | Subway contact net DC power supply integrated device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112350297A (en) | 2021-02-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8872377B2 (en) | Autotransformer traction power supply system equipped with 2×27.5kV outdoor modularized electric apparatus in electrified railway | |
| CN112350297B (en) | A subway overhead line DC power supply integrated device | |
| KR102624745B1 (en) | Electrical Power Receiving Equipment | |
| CN107465121A (en) | Contact net console mode isolating switch cabinet | |
| CN213484519U (en) | Subway contact net DC power supply integrated device | |
| BRPI1100187A2 (en) | double busbar type switching device | |
| KR101658360B1 (en) | The transforming panel supplying electric power to catenary tram and the controlling system of a CCTV | |
| CN213734958U (en) | Equipotential control system of rail transit platform | |
| CN109617002A (en) | DC Ground Fault Isolation Equipment and Systems | |
| CN206834842U (en) | Intelligent O＆M power distribution control system | |
| CN207098432U (en) | A kind of railway traffic contact network visualizes earthing or grounding means | |
| CN112260123B (en) | Rotatable on-vehicle 220kV of prefabricated cabin formula sleeve pipe removes GIS | |
| CN110416894B (en) | Outdoor movable alternating current emergency power distribution device | |
| CN210722855U (en) | Isolation grounding switch control device and isolation grounding switch system | |
| WO2021042800A1 (en) | Valve tower for flexible direct-current converter valve | |
| CN207303687U (en) | A kind of contact net console mode isolating switch cabinet | |
| CN209880418U (en) | Photovoltaic module quick turn-off device | |
| CN211617531U (en) | Lifting protection and rainproof device of power interface | |
| CN211126464U (en) | Intelligent grounding isolation device | |
| CN108279360A (en) | Singlephase earth fault circuit monitoring system | |
| CN110949230B (en) | Lifting protection and rainproof device for power interface | |
| CN220253950U (en) | Double-grounding type isolating switch, control system and double-grounding type isolating switch cabinet | |
| KR101620365B1 (en) | The transforming panel supplying electric power to catenary tram | |
| CN213878685U (en) | Visual power supply grounding device | |
| CN214676200U (en) | Dustproof cabinet with AFDD circuit protection equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 450001 No.100, Kangning street, Zhengzhou area (Zhengdong), Henan pilot Free Trade Zone, Zhengzhou City, Henan Province Patentee after: Zhengzhou Transportation Development Investment Group Co.,Ltd. Country or region after: China Patentee after: WUHAN CHANGHAI ELECTRICAL TECHNOLOGY DEVELOPMENT Co.,Ltd. Address before: No. 100 Kangning Street, Zhengzhou Area (Zhengdong), Henan Pilot Free Trade Zone, Zhengzhou City, Henan Province Patentee before: ZHENGZHOU METRO GROUP Co.,Ltd. Country or region before: China Patentee before: WUHAN CHANGHAI ELECTRICAL TECHNOLOGY DEVELOPMENT Co.,Ltd. |
|
| CP03 | Change of name, title or address |