1. Switching station reliability lift system, its characterized in that: the device comprises a one-way air inlet mechanism, a one-way exhaust mechanism, a nitrogen making machine (1), an oxygen sensor (2), a controller (3), a starting key (4), a closing key (5), a magnetic lock (6) and an air conditioner (7);

the unidirectional air inlet mechanism and the unidirectional air outlet mechanism are both arranged on the side wall of the switching station, and the unidirectional air outlet mechanism and the air conditioner (7) are both connected with the controller (3);

the oxygen sensor (2) is arranged in the switch station, and the nitrogen generator (1) and the oxygen sensor (2) are both connected with the controller (3);

the magnetic lock (6) is arranged on a door body of the switching station, and the magnetic lock (6) is connected with the controller (3);

nitrogen generator (1), start key (4) and close key (5) and all set up in the outside of switch station, start key (4) and close equal connection director (3) of key (5), and the air inlet of nitrogen generator (1) is equipped with air conduit (8) that stretch into in the switch station, and the nitrogen outlet of nitrogen generator (1) is equipped with nitrogen gas pipeline (9) that stretch into in the switch station.

2. The switchyard reliability enhancement system of claim 1, characterized by: one-way air inlet mechanism is including passing intake pipe (10) of cubical switchboard side wall, and the tip that intake pipe (10) are located the cubical switchboard is equipped with first inclined plane, is equipped with air inlet closing plate (11) on the first inclined plane, and air inlet closing plate (11)'s upper end is articulated through first hinge (12) and intake pipe (10).

3. The switchyard reliability enhancement system of claim 1, characterized by: the one-way exhaust mechanism comprises an exhaust pipe (13) penetrating through the side wall of the switch station, an exhaust fan (14) is arranged in the exhaust pipe (13), a second inclined plane is arranged at the end part, located on the outer side of the switch station, of the exhaust pipe (13), an exhaust sealing plate (15) is arranged on the second inclined plane, and the upper end of the exhaust sealing plate (15) is hinged to the exhaust pipe (13) through a second hinge (16).

4. The switchyard reliability enhancement system of claim 2, characterized by: the air conditioner is characterized in that the outer side end of the air inlet pipe (10) is bent downwards to form a vertical pipe (17), the upper end and the lower end of the vertical pipe (17) are respectively provided with a first partition plate (18) and a second partition plate (19), the lower side of the second partition plate (19) is provided with a water absorption cotton plate (20), a plurality of aluminum pipes (21) are arranged between the first partition plate (18) and the second partition plate (19), the inner wall of each aluminum pipe (21) is provided with a rib plate (22) with a spiral angle of 3-8 degrees, the upper end and the lower end of each aluminum pipe (21) respectively penetrate through the first partition plate (18) and the second partition plate (19), the side wall of the upper end of the vertical pipe (17) is provided with a third pipeline (23), the third pipeline (23) is connected with an air outlet of the air conditioner (7), and the side wall of the lower end of the vertical pipe (17) is provided with a fourth pipeline (24) extending into the switch station.

Background

An electric facility in which an electric power system (grid) and electric equipment of a user thereof are selectively connected or disconnected by a switching device is called a switching station, and an air conditioner is generally installed in the switching station. Generally, a substation has a voltage level of 10kV or more and distributes power from a power grid to a plurality of substations. In order to improve the safety and reduce the possibility of electric shock to workers, a control room is usually arranged on one side of the switching station, the workers can operate the switching device in the control room, and the switching device cannot enter the switching station generally except for regular maintenance. Because the switching device passes through the heavy current in the closing moment, the switching device easily produces the spark when closing, probably arouses switch station inside to catch fire to certain heating also has after long-time circular telegram of switching device, and when the switching device ageing, just easily overheated, reasons such as circuit ageing can also arouse switch station inside to catch fire, and the reliability of switch station is relatively poor. At present, a monitoring system is arranged in a switch station, an alarm is given out at the moment of fire in the switch station, so that workers can extinguish the fire in time, but the fire is not the cause of symptoms and root causes, and even if the fire is successfully extinguished, a part of equipment in the switch station is damaged, and huge loss is caused. Therefore, there is a need for a device or system that improves the reliability of the switchyard, prevents fires inside the switchyard, and reduces losses.

Disclosure of Invention

The invention aims to provide a reliability improving system for a switching station. The invention has the advantages of improving the reliability of the switch station, preventing the fire in the switch station to reduce the loss, and having lower energy consumption, good safety and low maintenance frequency.

The technical scheme of the invention is as follows: the reliability improving system for the switching station comprises a one-way air inlet mechanism, a one-way exhaust mechanism, a nitrogen making machine, an oxygen sensor, a controller, a starting key, a closing key, a magnetic lock and an air conditioner;

the unidirectional air inlet mechanism and the unidirectional air outlet mechanism are arranged on the side wall of the switching station, and the unidirectional air outlet mechanism and the air conditioner are connected with the controller;

the oxygen sensor is arranged in the switch station, and the nitrogen making machine and the oxygen sensor are both connected with the controller;

the magnetic lock is arranged on a door body of the switching station and is connected with the controller;

nitrogen generator, start key and close the key and all set up in the outside at the switch station, start key and close the equal connection director of key, and the air inlet of nitrogen generator is equipped with the air conduit who stretches into in the switch station, and the nitrogen gas export of nitrogen generator is equipped with the nitrogen gas pipeline that stretches into in the switch station.

In the aforementioned reliability improving system for the switching station, the one-way air inlet mechanism comprises an air inlet pipe penetrating through a side wall of the switching station, a first inclined plane is arranged at the end part, located in the switching station, of the air inlet pipe, an air inlet sealing plate is arranged on the first inclined plane, and the upper end of the air inlet sealing plate is hinged to the air inlet pipe through a first hinge.

In the aforementioned reliability improving system for the switching station, the one-way exhaust mechanism comprises an exhaust pipe penetrating through a side wall of the switching station, an exhaust fan is arranged in the exhaust pipe, a second inclined plane is arranged at the end part, located on the outer side of the switching station, of the exhaust pipe, an exhaust sealing plate is arranged on the second inclined plane, and the upper end of the exhaust sealing plate is hinged to the exhaust pipe through a second hinge.

In the reliability improving system for the switching station, the outer side end of the air inlet pipe is bent downwards to form a vertical pipe, the upper end and the lower end of the vertical pipe are respectively provided with a first partition plate and a second partition plate, the lower side of the second partition plate is provided with a water absorption cotton plate, a plurality of aluminum pipes are arranged between the first partition plate and the second partition plate, the inner walls of the aluminum pipes are provided with rib plates with helical angles of 3-8 degrees, the upper end and the lower end of each aluminum pipe respectively penetrate through the first partition plate and the second partition plate, the side wall of the upper end of the vertical pipe is provided with a third pipeline, the third pipeline is connected with an air outlet of an air conditioner, and the side wall of the lower end of the vertical pipe is provided with a fourth pipeline extending into the switching station.

Compared with the prior art, the invention can regulate and control the oxygen content of the air in the switching station, so that the indoor oxygen content is continuously lower than 4% under the normal working state of the switching station, thereby ensuring that the interior of the switching station cannot be ignited, fundamentally avoiding the ignition of the switching station and preventing the equipment in the switching station from being damaged by the ignition. In addition, the invention also has the advantages of lower energy consumption, good safety and low maintenance frequency through the optimization of the structure. Therefore, the invention has the advantages of improving the reliability of the switch station, preventing the fire in the switch station to reduce the loss, and having lower energy consumption, good safety and low maintenance frequency.

Drawings

FIG. 1 is a structural schematic of the present invention.

FIG. 2 is a sectional view of the aluminum pipe.

The labels in the figures are: 1-nitrogen making machine, 2-oxygen sensor, 3-controller, 4-start key, 5-close key, 6-magnetic lock, 7-air conditioner, 8-air pipeline, 9-nitrogen pipeline, 10-air inlet pipe, 11-air inlet sealing plate, 12-first hinge, 13-air outlet pipe, 14-air outlet fan, 15-air outlet sealing plate, 16-second hinge, 17-vertical pipe, 18-first clapboard, 19-second clapboard, 20-water absorption cotton board, 21-aluminum pipe, 22-rib board, 23-third pipeline, 24-fourth pipeline and 25-door body.

Detailed Description

The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.

Examples are given. The reliability improving system of the switching station comprises a one-way air inlet mechanism, a one-way exhaust mechanism, a nitrogen making machine 1, an oxygen sensor 2, a controller 3, a starting key 4, a closing key 5, a magnetic lock 6 and an air conditioner 7, wherein the one-way air inlet mechanism is connected with the one-way exhaust mechanism;

the unidirectional air inlet mechanism and the unidirectional air outlet mechanism are arranged on the side wall of the switching station, and the unidirectional air outlet mechanism and the air conditioner 7 are connected with the controller 3;

the oxygen sensor 2 is arranged in the switch station, and the nitrogen generator 1 and the oxygen sensor 2 are both connected with the controller 3;

the magnetic lock 6 is arranged on the door body 25 of the switching station, and the magnetic lock 6 is connected with the controller 3;

nitrogen generator 1, start key 4 and close key 5 and all set up in the outside of switch station, start key 4 and close key 5 and all connect the controller 3, and the air inlet of nitrogen generator 1 is equipped with the air conduit 8 that stretches into in the switch station, and nitrogen outlet of nitrogen generator 1 is equipped with the nitrogen gas pipeline 9 that stretches into in the switch station.

The one-way air inlet mechanism comprises an air inlet pipe 10 penetrating through a side wall of the switching station, a first inclined plane is arranged at the end part, located in the switching station, of the air inlet pipe 10, an air inlet sealing plate 11 is arranged on the first inclined plane, and the upper end of the air inlet sealing plate 11 is hinged to the air inlet pipe 10 through a first hinge 12.

The one-way exhaust mechanism comprises an exhaust pipe 13 penetrating through the side wall of the switching station, an exhaust fan 14 connected with the controller 3 is arranged in the exhaust pipe 13, a second inclined plane is arranged at the end part, located on the outer side of the switching station, of the exhaust pipe 13, an exhaust sealing plate 15 is arranged on the second inclined plane, and the upper end of the exhaust sealing plate 15 is hinged to the exhaust pipe 13 through a second hinge 16.

The air inlet pipe 10 is characterized in that the outer side end is bent downwards to form a vertical pipe 17, a first partition plate 18 and a second partition plate 19 are respectively arranged at the upper end and the lower end of the vertical pipe 17, a water absorption cotton plate 20 is arranged at the lower side of the second partition plate 19, a plurality of aluminum pipes 21 are arranged between the first partition plate 18 and the second partition plate 19, rib plates 22 with helical angles of 3-8 degrees are arranged on the inner walls of the aluminum pipes 21, the upper end and the lower end of each aluminum pipe 21 respectively penetrate through the first partition plate 18 and the second partition plate 19, a third pipeline 23 is arranged on the side wall of the upper end of the vertical pipe 17, the third pipeline 23 is connected with an air outlet of the air conditioner 7, and a fourth pipeline 24 extending into the switching station is arranged on the side wall of the lower end of the vertical pipe 17.

The air conditioner 7 comprises an outer machine and an inner machine, the outer machine is fixed to the outer side wall surface of the switch station, and the inner machine is fixed to the inner side wall surface of the switch station.

In order to improve the sealing performance of the switching station, sealing strips are preferably arranged on the door body 25, the air inlet sealing plate 11 and the exhaust sealing plate 15 of the switching station.

The working principle is as follows: when the switching station normally operates, the starting key 4 is pressed, and the controller 3 enables the magnetic lock 6 to be locked, the nitrogen making machine 1 to work, the air conditioner 7 to work and the exhaust fan to stop. The magnetic lock 6 prevents the door 25 of the switching station from being opened, and prevents people from entering. Air enters into nitrogen generator 1 through air conduit 8 in the switch station, air separation becomes nitrogen gas and oxygen, oxygen directly discharges, nitrogen gas enters into the switch station through nitrogen conduit 9, make the oxygen content in the switch station reduce gradually, controller 3 acquires the oxygen concentration in the switch station through oxygen sensor 2, when oxygen concentration is less than 4%, controller 3 makes nitrogen generator 1 and air conditioner 7 stop work, because the oxygen concentration in the switch station is low, the switch station is inside can not catch fire. As the nitrogen making machine 1 discharges oxygen in the switch station, the pressure in the switch station is reduced, and the outside air enters the switch station through the water absorbent cotton plate 20, the aluminum pipe 21, the air inlet pipe 10 and the air inlet closing plate 11 in sequence. Air in the switching station circulates through an inner machine of the air conditioner 7, cold air blown out returns to the switching station through a third pipeline 23, a vertical pipe 17 and a fourth pipeline 24, the cold air cools the air entering the switching station through an aluminum pipe 21 to condense water vapor in the air, a rib plate 22 enables the air in the aluminum pipe 21 to advance spirally, fully contacts with the aluminum pipe, so that the water vapor is more thoroughly condensed, the air entering the switch station is dried, the humidity in the switch station is reduced, thereby reducing the aging and corrosion speed of the switch device in the switch station, reducing the possibility of fire, and dripping the condensed water vapor on the water absorption cotton plate under the action of gravity to moisten the water absorption cotton plate, the air entering the switch station is more effectively filtered, the dust content in the air is reduced, this also reduces the rate of aging corrosion of the switchgear in the switchgear station, reducing the possibility of fire. And the condensed water dissolves dust on the water absorption cotton plate and drops again to take away the dust, so that the water absorption cotton plate is kept clean, the water absorption cotton plate is prevented from being blocked, and the maintenance frequency is reduced.

When the switch station is overhauled, the closing key 5 is pressed, the controller 3 stops the nitrogen making machine 1, the exhaust fan 14 works, air with low oxygen concentration in the switch station is exhausted from the exhaust pipe 13 under the action of the exhaust fan 14, and air with high oxygen concentration outside the switch station enters the switch station from the air inlet pipe 10. The controller 3 acquires the oxygen concentration in the switch station through the oxygen sensor 2, and when the oxygen concentration is greater than 19%, the controller 3 enables the magnetic lock 6 to be opened, so that a maintainer can enter the switch station.

The invention is suitable for large-scale switch stations with the floor area more than 100 square.

The invention has the advantages of improving the reliability of the switch station, preventing the fire in the switch station to reduce the loss, and having lower energy consumption, good safety and low maintenance frequency.