CN215956002U - Intelligent ventilation and drainage system for cable trench of transformer substation - Google Patents
Intelligent ventilation and drainage system for cable trench of transformer substation Download PDFInfo
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- CN215956002U CN215956002U CN202122328583.9U CN202122328583U CN215956002U CN 215956002 U CN215956002 U CN 215956002U CN 202122328583 U CN202122328583 U CN 202122328583U CN 215956002 U CN215956002 U CN 215956002U
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- cable trench
- temperature
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- rod motor
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Abstract
The utility model discloses an intelligent ventilation and drainage system for a cable trench of a transformer substation, which comprises a cover plate; one side edge of the cover plate is rotatably connected with one side of the bracket, and the telescopic end of the push rod motor penetrates through the isolation net and is hinged with the plate surface of the cover plate; the temperature and humidity sensor is electrically connected with the input end of the control module, and the output end of the control module is electrically connected with the push rod motor and the fan; the liquid level detection element is connected with the water pump circuit. The advantages are that: the temperature and humidity in the cable trench can be monitored in real time through the temperature and humidity sensor, the temperature and humidity are fed back to the control module in real time, and the start and stop of the push rod motor and the fan are automatically controlled through the control module, so that the temperature and humidity in the cable trench are regulated and controlled; accumulated water in the cable trench is detected in real time through the liquid level detection element, so that the start and stop of the water pump are controlled, and the accumulated water in the cable trench is avoided; the temperature and humidity in the cable trench are guaranteed to meet the operation requirement, the safety of cables in the cable trench is guaranteed, automatic control is achieved, labor is saved, and efficiency is improved.
Description
The technical field is as follows:
the utility model relates to the technical field of transformer substation equipment, in particular to an intelligent ventilation and drainage system for a cable trench of a transformer substation.
Background art:
in northern areas, four seasons are clear, the temperature difference between day and night is large, particularly in spring and autumn, condensation is easy to occur in a cable trench of a transformer substation, and in addition, water enters the cable trench in summer, so that the humidity in most of one year of the cable trench is large, not only can faults such as reduction of cable insulation or direct current grounding be caused, but also the consequences such as corrosion of a wiring terminal or a box body caused by the fact that moisture enters an adjacent terminal box for condensation can be caused, and the equipment safety is seriously damaged; in heavy rainfall weather, a large amount of water is accumulated in a cable trench of a transformer substation, if the cable trench cannot drain water in time, the insulation strength is easily reduced and even breakdown is easily caused by cable soaking, and serious consequences caused by direct current grounding are easily caused; in addition, when the temperature is high in summer or the current of the cable is high, the temperature in the cable trench is high, the insulation strength of the cable is seriously influenced, and fire hazard is easily formed; in conclusion, the cable trench of the substation must be drained and ventilated in time.
At present, the treatment mode of ventilation and drainage of a cable trench is mainly that a cable trench cover plate is manually opened for ventilation, and a water pump is put into the cable trench for pumping water when drainage is needed; the method has low ventilation and drainage efficiency and great potential safety hazard, the edge of the cover plate is easily damaged and operators are extruded when the cover plate is pried, and the cable trench cover plate between each section of the firewall needs to be opened by at least three persons, so that the workload is huge; in addition, when water is drained, a water pump needs to be placed, and an external power supply is complicated to operate; on the other hand does not have protector when the cable trench cover is opened and easily causes personnel to step on empty, when meetting the condition of raining, the apron can't in time resume then can aggravate the cable trench and intake and wet.
The utility model has the following contents:
the utility model aims to provide an intelligent ventilation and drainage system for a cable trench of a transformer substation, which can monitor the temperature, humidity and water level in the cable trench in real time and realize automatic control and timely ventilation and drainage.
The utility model is implemented by the following technical scheme: the intelligent ventilation and drainage system for the cable trench of the transformer substation comprises a cover plate, a bracket, a liquid level detection element, a push rod motor, a first temperature and humidity sensor, a second temperature and humidity sensor and a water pump arranged in the cable trench; one side edge of the cover plate is rotatably connected with one side of the bracket, an isolation net is erected on the bracket, and a fan is fixed on the bottom surface of the isolation net; the bottom surface of the isolation net is connected with a fixed support through a bolt, the base of the push rod motor is hinged with the fixed support, and the telescopic end of the push rod motor penetrates through the isolation net and is hinged with the plate surface of the cover plate; the first temperature and humidity sensor and the second temperature and humidity sensor are both electrically connected with the input end of the control module, and the output end of the control module is electrically connected with the push rod motor and the fan; a drain pipe is hermetically penetrated through the side wall of the cable trench, and a water outlet of the water pump is communicated with a pipe orifice at one end of the drain pipe through a hose; the detection end of the liquid level detection element is arranged in the cable trench, and the liquid level detection element is connected with the water pump circuit.
Furthermore, a high-frequency mouse repeller is fixed in the cable trench.
Furthermore, a plug is plugged into the pipe orifice at the other end of the water discharge pipe, which is arranged outside the cable trench.
Furthermore, the liquid level detection element is a liquid level relay, and the detection end of the liquid level detection element is provided with three liquid level probes correspondingly connected with three contacts of the liquid level relay.
Further, the control module comprises a first logic module, a second logic module, a first temperature and humidity controller, a second temperature and humidity controller, a switching power supply and a driving module; the output end of the switch power supply is electrically connected with the first temperature and humidity controller and the second temperature and humidity controller, the output end of the first temperature and humidity controller is electrically connected with the input end of the first logic module, the output end of the second temperature and humidity controller is electrically connected with the input end of the second logic module, and the output end of the first logic module and the output end of the second logic module are electrically connected with the input end of the driving module.
Further, the remote control circuit board and the change-over switch are further included; the output end of the switching power supply is electrically connected with the remote control circuit board, the output end of the remote control circuit board is electrically connected with the push rod motor, and the output end of the remote control circuit board, the output end of the driving module and the circuit between the push rod motor are connected with the change-over switch.
Furthermore, the input end of the switching power supply is electrically connected with a main circuit, and a time control switch is connected in series between the main circuit and the input end of the switching power supply.
Further, the electric vehicle charging system further comprises an intermediate relay KA and a storage battery, wherein a coil of the intermediate relay KA is connected in series on a circuit between the time control switch and the switch power supply, the storage battery is electrically connected with the push rod motor, and a normally closed contact of the intermediate relay KA is connected in series on the circuit of the storage battery and the push rod motor.
Further, the device also comprises a GSM controller and a proximity switch; the proximity switch is installed on the isolation network, the proximity switch is electrically connected with the input end of the GSM controller, and the output end of the GSM controller is in signal connection with the mobile terminal.
Furthermore, the device also comprises a warning lamp, and the proximity switch is electrically connected with the warning lamp.
The utility model has the advantages that: according to the utility model, the temperature and the humidity in the cable trench can be monitored in real time through the temperature and humidity sensor, and are fed back to the control module in real time, and the start and stop of the push rod motor and the fan are automatically controlled through the control module, so that the temperature and the humidity in the cable trench are regulated and controlled; accumulated water in the cable trench is detected in real time through the liquid level detection element, so that the start and stop of the water pump are controlled, and the accumulated water in the cable trench is avoided; therefore, the temperature and humidity of the cable trench can be controlled below 40 ℃, the humidity is controlled below 60%, the temperature and the humidity in the cable trench meet the operation requirements, the safety of cables in the cable trench is ensured, automatic control is realized, labor is saved, and the efficiency is improved; in addition, the utility model realizes that the working condition of the cover plate is uploaded to the mobile phone of the related personnel through the GSM controller to realize intelligent remote monitoring; the utility model can also realize switching to remote control operation and operate through a remote control system.
Description of the drawings:
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a left side view of fig. 1.
Fig. 3 is a schematic structural view of the bracket and the separation net according to the present invention.
Fig. 4 is a schematic diagram of a control structure of the present invention.
FIG. 5 is a control logic diagram of the control module controlling the fan according to the present invention.
FIG. 6 is a control logic diagram of the control module controlling the push rod motor according to the present invention.
The parts in the drawings are numbered as follows: the device comprises a cover plate 1, a bracket 2, a liquid level detection element 3, a cable trench 4, a water pump 5, a first temperature and humidity sensor 6, an isolation net 7, a fan 8, a fixing support 9, a push rod motor 10, a control module 11, a first logic module 11.1, a first temperature and humidity controller 11.2, a switch power supply 11.3, a driving module 11.4, a second temperature and humidity controller 11.5, a second logic module 11.6, a drain pipe 12, a hose 13, a high-frequency mouse repeller 14, a plug 15, a remote control circuit board 16, a change-over switch 17, a main circuit 18, a time control switch 19, a storage battery 20, a GSM controller 21, a proximity switch 22, a warning lamp 23 and a second temperature and humidity sensor 24.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "front", "rear", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 to 6, the present embodiment provides an intelligent ventilation and drainage system for a cable trench of a transformer substation, which includes a cover plate 1, a bracket 2, a liquid level detection element 3, a push rod motor 10, a first temperature and humidity sensor 6, a second temperature and humidity sensor 24, and a water pump 5 disposed in the cable trench 4; the cover plate 1 is made of galvanized steel plate, and the mechanical strength of the cover plate is enough to support staff to perform inspection tour; in practical application, warning and prompting marks are further adhered to the two side plate surfaces of the cover plate 1; the bracket 2 is erected and fixed between two sides of the cable trench 4, one side edge of the cover plate 1 is rotatably connected with one side of the bracket 2, the isolation net 7 is erected on the bracket 2, the bottom surface of the isolation net 7 is fixedly provided with the fan 8 through bolts, so that the assembly, disassembly and maintenance are convenient, and the fan 8 is arranged at the trench opening of the cable trench 4, so that the ventilation efficiency is high; the bottom surface of the isolation net 7 is connected with a fixed support 9 through a bolt, the base of a push rod motor 10 is hinged with the fixed support 9, and the telescopic end of the push rod motor 10 penetrates through the isolation net 7 to be hinged with the plate surface of the cover plate 1; the push rod motor 10 is controlled to drive the cover plate 1 to be opened and closed, so that labor and time are saved, and the cover plate 1 is opened to facilitate ventilation and moisture removal in the cable trench 4.
The first temperature and humidity sensor 6 and the second temperature and humidity sensor 24 are electrically connected with the input end of the control module 11, and the output end of the control module 11 is electrically connected with the push rod motor 10 and the fan 8; the control module 11 comprises a first logic module 11.1, a second logic module 11.6, a first temperature and humidity controller 11.2, a second temperature and humidity controller 11.5, a switching power supply 11.3 and a driving module 11.4; the output end of the switching power supply 11.3 is electrically connected with the first temperature and humidity controller 11.2 and the second temperature and humidity controller 11.5, the first temperature and humidity sensor 6 is electrically connected with the input end of the first temperature and humidity controller 11.2, the output end of the first temperature and humidity controller 11.2 is electrically connected with the input end of the first logic module 11.1, and the output end of the first logic module 11.1 is electrically connected with the input end of the driving module 11.4; the second temperature and humidity sensor 24 is electrically connected with the input end of the second temperature and humidity controller 11.5, the output end of the second temperature and humidity controller 11.5 is electrically connected with the input end of the second logic module 11.6, and the output end of the second logic module 11.6 is electrically connected with the input end of the driving module 11.4; the output end of the driving module 11.4 is electrically connected with the fan 8 and the push rod motor 10; the first logic module 11.1 for controlling the push rod motor 10 is formed by connecting a chip with the model number of 74LS02, a chip with the model number of 74LS32 and a resistor, the second logic module 11.6 for controlling the fan 8 is formed by connecting a chip with the model number of 74LS00, a chip with the model number of 74HC04 and a resistor, and the driving module 11.4 is of the L298N type; the switching power supply 11.3 supplies power to the circuit; the temperature and the humidity in the cable trench 4 are detected in real time through the first temperature and humidity sensor 6 and the second temperature and humidity sensor 24 and fed back to the corresponding first temperature and humidity controller 11.2 and the second temperature and humidity controller 11.5 in real time, the first temperature and humidity controller 11.2 transmits signals to the first logic module 11.1, and the signals output by the first logic module 11.1 control the start and stop of the push rod motor 10 through the driving module 11.4; meanwhile, the second temperature and humidity controller 11.5 transmits a signal to the second logic module 11.6, and the signal output by the second logic module 11.6 controls the start and stop of the fan 8 through the driving module 11.4; the first temperature and humidity sensor 6 and the second temperature and humidity sensor 24 are installed at the same position of the cable trench, and the temperature and humidity detected by the two sensors are the same.
When the detected temperature exceeds the set temperature of 40 ℃, the control module 11 controls the push rod motor 10 to start, the push rod motor 10 drives the cover plate 1 to open, so that the interior of the cable trench 4 is ventilated and cooled, and when the temperature continues to rise to the set temperature of 45 ℃, the fan 8 is controlled to start, so that the convection speed of the air inside and outside the cable trench 4 is increased, the purpose of rapid cooling is realized, the efficiency is greatly improved, and the temperature can be controlled in a short time; when the detected temperature is reduced to 40 ℃, the fan 8 is controlled to stop, and when the temperature is continuously reduced to 35 ℃, the push rod motor 10 is controlled to drive the cover plate 1 to close; when the detected humidity reaches 60%, the push rod motor 10 is controlled to drive the cover plate 1 to be opened, ventilation and dehumidification are kept, and when the humidity continues to rise to 70%, the fan 8 is controlled to be opened, so that ventilation is accelerated; when the humidity drops to 65% of the set value, the fan 8 is controlled to stop, and when the humidity continues to drop to 55% of the set value, the push rod motor 10 is controlled to drive the cover plate 1 to close.
A drain pipe 12 is hermetically penetrated through the side wall of the cable trench 4, and a drain port of the water pump 5 is communicated with a pipe orifice at one end of the drain pipe 12 through a hose 13; the liquid level detection element 3 is in circuit connection with the water pump 5; the liquid level detection element 3 is a liquid level relay, the detection end of the liquid level detection element 3 is provided with three liquid level probes correspondingly connected with three contacts of the liquid level relay, and the three liquid level probes are arranged in the cable trench 4; the water level in the cable trench 4 is detected in real time through a probe of the liquid level relay, when the water level rises to a set high level, the water pump 5 is started to discharge accumulated water from the water discharge pipe 12, and when the water level falls to a set low level, the water pump 5 is stopped, operation of workers is not needed, a function of timely discharging water is achieved, and efficiency is further improved; the control of the start and stop of the water pump 5 through the liquid level relay is the prior art, and the detailed working principle is not described in detail herein; a plug 15 is plugged into a pipe orifice at the other end of the drain pipe 12, which is arranged outside the cable trench 4, so that the drain pipe 12 is plugged by the plug 15 when drainage is not needed in seasons with small rainfall, and the purposes of preventing moisture and small animals from entering the drain pipe are achieved; a high-frequency mouse repeller 14 is fixed in the cable trench 4, and can repel small animals.
It also includes remote control circuit board 16 and change-over switch 17; the output end of the switching power supply 11.3 is electrically connected with the remote control circuit board 16, the output end of the remote control circuit board 16 is electrically connected with the push rod motor 10, and the lines among the output end of the remote control circuit board 16, the output end of the driving module 11.4 and the push rod motor 10 are connected with a change-over switch 17; when the system normally operates, the change-over switch 17 is switched to an automatic position, so that the system automatically operates to drive the cover plate 1 to open and close; when a related circuit for driving the cover plate 1 to open and close breaks down and cannot work normally, the change-over switch 17 is switched to a manual position, so that the cover plate 1 can be remotely controlled to open and close conveniently by using a remote controller, and when the system needs to be stopped, the change-over switch 17 is switched to a stop position, and the system stops running.
The input end of the switching power supply 11.3 is electrically connected with the main circuit 18, a time control switch 19 is connected between the main circuit 18 and the input end of the switching power supply 11.3 in series, and as the northern night temperature is lower and the temperature difference between day and night is large, the night humidity is large, in order to prevent raining or other severe weather at night, the system can be set to be started in the daytime and be shut down at night through the time control switch 19 according to different seasons in the embodiment; that is, the time control switch 19 is controlled to be closed in the daytime and communicated with the main circuit 18, so that the system can control the starting and stopping of the fan 8 and the push rod motor 10 conveniently, and the time control switch 19 is controlled to be opened at night and disconnected with the main circuit 18, so that the fan 8 and the push rod motor 10 do not act.
The push rod type electric vehicle also comprises an intermediate relay KA and a storage battery 20, wherein a coil of the intermediate relay KA is connected in series on a line between the time control switch 19 and the switch power supply 11.3, the storage battery 20 is electrically connected with the push rod motor 10, and a normally closed contact of the intermediate relay KA is connected in series on the line between the storage battery 20 and the push rod motor 10; in order to prevent the cover plate 1 from being in an open state when the time control switch 19 cuts off the main power supply and causing water inflow or moisture regain of the cable trench 4 if raining at night, in the embodiment, the storage battery 20 is installed and is controlled by the intermediate relay KA; the coil and the normally closed contact of the intermediate relay KA are connected into a corresponding circuit, when the control switch 19 is closed, and the main power supply supplies power to the system, the normally closed contact of the intermediate relay KA is disconnected, the storage battery 20 does not work, when the control switch 19 cuts off the main power supply, the normally closed contact of the intermediate relay KA is closed, and at the moment, the cover plate 1 in an open state pushes the push rod motor 10 to act and drives the cover plate 1 to be closed under the power supply condition of the storage battery 20.
It also includes a GSM controller 21 and a proximity switch 22; the model of the proximity switch 22 is an NPN type, the proximity switch 22 is installed on the isolation network 7, the control output end of the proximity switch 22 is electrically connected with the input end of the GSM controller 21, and the output end of the GSM controller 21 is in signal connection with the mobile terminal; when the cover plate 1 is closed and close to the proximity switch 22, the proximity switch 22 is triggered, signals are transmitted to the GSM controller 21, and the signals are remotely sent to a mobile terminal mobile phone of a worker through the GSM controller 21, so that the state of the cover plate 1 can be remotely monitored; in the embodiment, based on the GSM network of the operator, the proximity switch 22 and the GSM information receiving and sending device are used to transmit the system running state to the mobile phone, so as to realize the purpose of remote monitoring; the device also comprises a warning lamp 23, and the proximity switch 22 is electrically connected with the warning lamp 23; the warning lamp 23 on the cover plate 1 is connected to the proximity switch 22, when the cover plate 1 is opened, the power supply is switched on, and the warning lamp 23 flickers to remind operators to ensure safety; when the cover plate 1 is closed, the proximity switch 22 cuts off the power supply, and the warning lamp 23 is turned off.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The intelligent ventilation and drainage system for the cable trench of the transformer substation is characterized by comprising a cover plate, a bracket, a liquid level detection element, a push rod motor, a first temperature and humidity sensor, a second temperature and humidity sensor and a water pump arranged in the cable trench; one side edge of the cover plate is rotatably connected with one side of the bracket, an isolation net is erected on the bracket, and a fan is fixed on the bottom surface of the isolation net; the bottom surface of the isolation net is connected with a fixed support through a bolt, the base of the push rod motor is hinged with the fixed support, and the telescopic end of the push rod motor penetrates through the isolation net and is hinged with the plate surface of the cover plate;
the first temperature and humidity sensor and the second temperature and humidity sensor are both electrically connected with the input end of the control module, and the output end of the control module is electrically connected with the push rod motor and the fan;
a drain pipe is hermetically penetrated through the side wall of the cable trench, and a water outlet of the water pump is communicated with a pipe orifice at one end of the drain pipe through a hose; the detection end of the liquid level detection element is arranged in the cable trench, and the liquid level detection element is connected with the water pump circuit.
2. The intelligent ventilation and drainage system for the substation cable trench of claim 1, wherein a high-frequency mouse repeller is fixed in the cable trench.
3. The intelligent ventilation and drainage system for the substation cable trench of claim 1, wherein a plug is plugged into a pipe orifice at the other end of the drainage pipe, which is arranged outside the cable trench.
4. The intelligent substation cable trench ventilation and drainage system of claim 1, wherein the liquid level detection element is a liquid level relay, and the detection end of the liquid level detection element is three liquid level probes correspondingly connected with three contacts of the liquid level relay.
5. The intelligent ventilation and drainage system for the substation cable trench according to any one of claims 1 to 4, wherein the control module comprises a first logic module, a second logic module, a first temperature and humidity controller, a second temperature and humidity controller, a switching power supply and a driving module; the output end of the switch power supply is electrically connected with the first temperature and humidity controller and the second temperature and humidity controller, the output end of the first temperature and humidity controller is electrically connected with the input end of the first logic module, the output end of the second temperature and humidity controller is electrically connected with the input end of the second logic module, and the output end of the first logic module and the output end of the second logic module are electrically connected with the input end of the driving module.
6. The intelligent substation cable trench ventilation and drainage system of claim 5, further comprising a remote control circuit board and a transfer switch; the output end of the switching power supply is electrically connected with the remote control circuit board, the output end of the remote control circuit board is electrically connected with the push rod motor, and the output end of the remote control circuit board, the output end of the driving module and the circuit between the push rod motor are connected with the change-over switch.
7. The intelligent ventilation and drainage system for the cable trench of the transformer substation of claim 6, wherein the input end of the switching power supply is electrically connected with a main circuit, and a time control switch is connected between the main circuit and the input end of the switching power supply in series.
8. The intelligent ventilation and drainage system for the substation cable trench according to claim 7, further comprising an intermediate relay KA and a storage battery, wherein a coil of the intermediate relay KA is connected in series on a line between the time control switch and the switch power supply, the storage battery is electrically connected with the push rod motor, and a normally closed contact of the intermediate relay KA is connected in series on the line between the storage battery and the push rod motor.
9. The intelligent substation cable trench ventilation and drainage system of claim 5, further comprising a GSM controller and a proximity switch; the proximity switch is installed on the isolation network, the proximity switch is electrically connected with the input end of the GSM controller, and the output end of the GSM controller is in signal connection with the mobile terminal.
10. The intelligent substation cable trench ventilation and drainage system of claim 9, further comprising a warning light, wherein the proximity switch is electrically connected to the warning light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122328583.9U CN215956002U (en) | 2021-09-24 | 2021-09-24 | Intelligent ventilation and drainage system for cable trench of transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122328583.9U CN215956002U (en) | 2021-09-24 | 2021-09-24 | Intelligent ventilation and drainage system for cable trench of transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215956002U true CN215956002U (en) | 2022-03-04 |
Family
ID=80427825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122328583.9U Expired - Fee Related CN215956002U (en) | 2021-09-24 | 2021-09-24 | Intelligent ventilation and drainage system for cable trench of transformer substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215956002U (en) |
-
2021
- 2021-09-24 CN CN202122328583.9U patent/CN215956002U/en not_active Expired - Fee Related
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Granted publication date: 20220304 |