CN204854868U - Cable pit ponding alarm - Google Patents

Abstract

The utility model relates to a water accumulation alarm in a cable trench. The utility model relates to the technical field of flood control for electric power production, in particular to a substation cable ditch water accumulation alarm, which includes a power supply, an intelligent drainage controller, a relay, a number of water level probes, a number of alarm lights and an alarm. The intelligent drainage controller, relay, several water level probes, and several alarm lamps are all fixedly arranged on the side wall of the cable trench body, and the power supply and alarm are fixedly arranged on the inner wall of the cable trench cover. The utility model saves time and labor, has high reliability and low cost, can detect floods in time, is convenient for construction personnel to lay cables, and can prevent water accumulation in cable trenches of substations.

Description

A cable trench water alarm

technical field

The utility model relates to the technical field of electric power production flood prevention, in particular to a substation cable ditch water accumulation alarm.

Background technique

Substation cable trenches, power distribution rooms, and ring network cabinets are low-lying. When the rainy season comes, poor drainage in these places will often cause a large amount of water, endangering the safety of electrical equipment and seriously affecting reliable power supply. The method of present flood early warning mainly is: artificial early warning method, promptly is opened the cable ditch cover plate that is easy to accumulate water by the person on duty in patrolling. Check for standing water. The main problem of this method is that it is time-consuming, laborious and can not detect floods in time. Long-term accumulation of water in these places not only makes it difficult for construction workers to lay cables in cable trenches, but also easily causes corrosion or collapse of cable supports, which may reduce the insulation level of the entire DC system in the substation.

With the development of electronic technology, computer technology and communication technology and their application in the power system, many substations have completed the comprehensive automation transformation, realizing the realization of few people on duty or no one on duty. However, most of the existing substation integrated automation systems only realize the monitoring of the electrical equipment of the substation, but do not incorporate the water accumulation alarm signal of the cable trench of the substation into the monitoring system of the substation. For this reason, in order to comprehensively monitor the safe and reliable operation of the substation, it is necessary to develop a cable trench water alarm.

In this regard, on July 04, 2012, the State Intellectual Property Office published a Chinese patent document titled "Waterlogging Alarm Device for Cable Trench in Substation" with application number "201120348452.0". The accumulated water needs to be inspected manually on site to check the drainage problem. An alarm device is installed inside the cable trench. When the water level in the cable trench reaches a certain height, the alarm device can transmit the water accumulation information in the substation station, cable trench, cable room, and cable shaft to the Operating personnel and flood control headquarters, thereby reducing the burden on operating personnel.

Afterwards, the State Intellectual Property Office published a Chinese patent document on July 03, 2013, entitled "Water Level Exceeding Limit Remote Alarm Device", with the application number "201220635130.9". alarm system. However, in this case, in order to solve the above-mentioned problems of "time-consuming, laborious and unable to detect floods in time, long-term accumulated water will cause difficulties in laying cables, and may easily cause corrosion or collapse of cable supports."

Utility model content

Aiming at the above problems, the utility model proposes a cable trench water alarm that can save time, labor, high reliability, low cost, detect floods in time, and facilitate construction personnel to lay cables, which can prevent water accumulation in cable trenches of substations.

The technical solution of the utility model is: comprising a cable ditch body and a cable ditch cover, the water accumulation alarm includes a power supply, an intelligent drainage controller, a relay, several water level probes, several alarm lamps and an alarm;

The intelligent drainage controller, relay, several water level probes, and several alarm lamps are all fixedly arranged on the side wall of the cable trench body, and the power supply and alarm are fixedly arranged on the inner wall of the cable trench cover;

The power supply is connected with an intelligent drainage controller;

One end of the intelligent drainage controller is connected to several water level probes arranged inside the cable trench, and the other end is connected to the relay through the signal transmission line by controlling the photoelectric signal;

Several warning lamps are connected to the relay, and the several warning lamps are connected through lines;

The other end of the relay is connected to the alarm.

The alarm is provided with a stainless steel encapsulation shell.

At least one bolt hole is provided on the stainless steel packaging shell, and a fixing bolt is pierced in the bolt hole, and is fixedly pierced on the inner wall of the cable trench cover.

Beneficial effects of the utility model: a number of alarm lights and water level probes are arranged inside the cable trench to display the depth of the water level. When the set water level submerges the lowest water level probe in the cable trench and reaches 1/4 of the cable trench, it will One alarm light is on, and when the water level probe continues to submerge to 1/2, two alarm lights will be on. When the water level gradually reaches 3/4 of the cable trench, the accumulated water has completely submerged the cable. At this time, all The light is on, and the alarm is transmitted through the connection line, and the alarm will sound the alarm after receiving the signal transmission indication.

Description of drawings

Fig. 1 is the circuit connection schematic diagram of the present utility model,

Fig. 2 is a structural representation of the utility model;

Among the figure, 1 is a power supply, 2 is an intelligent drainage controller; 3 is a relay; 4 is a water level probe; 5 is a warning light; 6 is an alarm; 71 is a cable trench cover; 72 is a cable trench body.

Detailed ways

As shown in Figures 1 and 2, it includes a cable trench body 72 and a cable trench cover 71. The water accumulation alarm includes a power supply 1, an intelligent drainage controller 2, a relay 3, several water level probes 4, several warning lamps 5 and an alarm device 6;

The intelligent drainage controller 2, the relay 3, some water level probes 4, and some alarm lamps 5 are all fixedly arranged on the side wall of the cable trench body 72, and the power supply 1 and the alarm device 6 are fixedly arranged on the side wall of the cable trench cover body 71. on the inner wall;

The power supply 1 is connected with an intelligent drainage controller 2;

One end of the intelligent drainage controller 2 is connected with several water level probes 4 arranged inside the cable ditch, and the other end is connected with the relay 3 through the signal transmission line by controlling the photoelectric signal;

The relay 3 is connected with several warning lamps 5, and the several warning lamps 5 are connected by lines;

The other end of the relay 3 is connected to the alarm 6 .

The alarm 6 is provided with a stainless steel encapsulation shell; such a stainless steel encapsulation shell is tight and tight, waterproof and dustproof, not easy to rust, and avoids short circuit and burning of the alarm due to rib water.

At least one bolt hole is provided on the stainless steel packaging shell, and a fixing bolt is pierced in the bolt hole, and is fixedly pierced on the inner wall of the cable trench cover 71 .

A number of alarm lights and water level probes are installed inside the cable trench to display the depth of the water level. When the set water level submerges the lowest water level probe in the cable trench and reaches 1/4 of the cable trench, an alarm light will light up. When the water level probe continues to submerge and reaches 1/2, two alarm lights will light up. When the water level gradually reaches 3/4 of the cable trench, the accumulated water has completely submerged the cable. At this time, all lights are on, and through the connection The circuit will instruct to deliver the alarm, and the alarm will sound the alarm after receiving the signal delivery indication.

Claims (3)

1. a cable trench water collecting alarm, comprises cable duct body and cable duct lid, it is characterized in that, described water accumulation alarm comprises power supply, intelligent drainage function controller, relay, some water-level probes, some alarm lamps and alarm;

Described intelligent drainage function controller, relay, some water-level probes, some alarm lamps are all fixedly installed on the sidewall of cable duct body, and described power supply, alarm are fixedly installed on the inwall of cable duct lid;

Described power supply is connected with intelligent drainage function controller;

One end of described intelligent drainage function controller is connected with the some water-level probes being arranged on cable duct inside, and its other end control photosignal mode is connected with relay by signal transmssion line;

Described relay is connected with some alarm lamps, between described some alarm lamps, passes through connection;

The other end of described relay is connected on alarm.

2. a kind of cable trench water collecting alarm according to claim 1, is characterized in that, described alarm is provided with stainless steel package casing.

3. a kind of cable trench water collecting alarm according to claim 2, is characterized in that, described stainless steel package casing is provided with at least one bolt hole, is equipped with set bolt and is fixedly arranged on the inwall of cable duct lid in described bolt hole.