CN205826213U - A kind of hydropower generator air cooler leakage inspector - Google Patents

Abstract

The utility model discloses a water leakage detection device for an air cooler of a generator of a hydropower station, which comprises a control valve, a second water collecting tank and a water level detector. The second connecting water pipe is connected with the first water collecting tank, the side wall of the first water collecting tank is provided with a water level detector, one side of the first water collecting tank is provided with a valve, and the valve is connected with the second drain pipe, and the other side of the first water collecting tank is provided with a valve. There is a control valve on the side, the control valve is connected to the first connecting water pipe, the first connecting water pipe is connected to the second water collecting tank, the second water collecting tank is connected to the third drain pipe, the side of the water collecting tank is provided with the first drain pipe, the second water collecting tank is connected The first drainage pipe is connected to the second drainage pipe, and the water level detector is connected to the signal of the control valve. The utility model can accurately and timely prompt the water leakage of the air cooler, and can discharge the water leakage at the first time, so as to ensure the safe operation of the unit and facilitate the operators to timely repair.

Description

A water leakage detection device for the air cooler of a hydropower station generator

technical field

The utility model relates to a water leakage detection device, in particular to a water leakage detection device for an air cooler of a hydropower station generator.

Background technique

A hydropower station is a comprehensive engineering facility that can convert water energy into electrical energy. It generally includes a reservoir formed by water retaining and drainage structures, a water diversion system for a hydropower station, a power plant, and electromechanical equipment. The high water level water of the reservoir flows into the factory building through the water diversion system to drive the hydro-generator set to generate electricity, and then enters the power grid through the step-up transformer, switch station and transmission line. Many large-scale hydro-generators are cooled by closed self-circulating air cooling. The air cooler is equipped with a cold water pipe. When a certain air cooler leaks, if it is not discovered in time, it is easy to cause damage to the insulation of the stator coil, grounding or phase-to-phase short circuit faults, endangering the safety of the generator equipment.

CN204575255U discloses a water leakage detection device for a generator air cooler of a hydroelectric power station, comprising a water receiving tank, a water accumulation pipe, an accumulation water side pipe and an overflow pipe, the water connection tank is connected with the accumulation water pipe, and one end of the accumulation water pipe is provided with a valve. The water pipe is connected to the drain pipe. One side of the water accumulation pipe is provided with a water accumulation bypass pipe. The lowest end of the accumulation water bypass pipe is higher than the horizontal line where the valve is located, and the highest end of the water accumulation bypass pipe is lower than the highest end of the accumulation water pipe. The water collection side pipe is connected to the overflow pipe, and a water level sensor is installed in the water collection side pipe. When a water leakage accident occurs in the air cooler, the accumulated water exceeds the water level sensor. The sensor detects the water accumulation and alarms, and the signal is sent to the monitoring center to remind the operator There is a water leakage accident. It can detect the water leakage of the air cooler and drain it. However, due to the water leakage of the air cooler, a large amount of water will leak out. Only through the drain pipe and overflow pipe, the water cannot be discharged quickly. It accumulates around the stator coil, causing the insulation of the stator coil to be damaged, and it takes a certain amount of time for the maintenance personnel to rush to the scene.

Utility model content

The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a water leakage detection device for the air cooler of the generator of a hydropower station, which can effectively solve the problems in the background technology.

In order to solve the above technical problems, the utility model provides the following technical solutions:

The utility model relates to a water leakage detection device for an air cooler of a hydropower station generator, comprising a control valve, a second water collecting tank and a water level detector. The bottom of the air cooler is provided with a water collecting tank, and the water collecting tank is connected to a plurality of second connecting water pipes. The second connecting water pipe is connected to the first water collecting tank, the side wall of the first water collecting tank is provided with the water level detector, one side of the first water collecting tank is provided with a valve, and the valve and the second drain The other side of the first water collecting tank is provided with the control valve, the control valve is connected to the first connecting water pipe, the first connecting water pipe is connected to the second water collecting tank, and the second The water collection tank is connected to the third drain pipe.

As a preferred technical solution of the present utility model, a first drainage pipe is provided on one side of the sump, and the first drainage pipe is connected to the second drainage pipe.

As a preferred technical solution of the present invention, the water level detector is connected to the control valve for signals.

The beneficial effects achieved by the utility model are: the utility model can accurately and timely prompt the water leakage of the air cooler, and discharge the water leakage at the first time, ensure the safe operation of the unit, and facilitate the timely maintenance of the operators.

Description of drawings

The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the description, and are used to explain the utility model together with the embodiments of the utility model, and do not constitute a limitation to the utility model. In the attached picture:

Fig. 1 is a schematic diagram of the overall structure of the utility model;

In the figure: 1. Air cooler; 2. First drain pipe; 3. Second drain pipe; 4. Valve; 5. First water collection tank; 6. Control valve; 7. Second water collection tank; 8. Third Drain pipe; 9, the first connecting water pipe; 10, the water level detector; 11, the second connecting water pipe; 12, the sump.

detailed description

The preferred embodiments of the present utility model are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present utility model, and are not intended to limit the present utility model.

Example

As shown in Figure 1, including control valve 6, second water collection tank 7 and water level detector 10, the bottom of air cooler 1 is provided with water collection tank 12, and water collection tank 12 is connected with several second connecting water pipes 11, and the second connecting water pipe 11 is connected with the first water collecting tank 5, and the side wall of the first water collecting tank 5 is provided with a water level detector 10, and one side of the first water collecting tank 5 is provided with a valve 4, and the valve 4 is connected with the second drain pipe 3, and the first set The other side of the water tank 5 is provided with a control valve 6, the control valve 6 is connected to the first connecting water pipe 9, the first connecting water pipe 9 is connected to the second water collecting tank 7, and the second water collecting tank 7 is connected to the third drain pipe 8.

One side of the sump 12 is provided with a first drain pipe 2 , the first drain pipe 2 is connected to the second drain pipe 3 , and when the air cooler 1 leaks, the water body is discharged through the first drain pipe 2 .

The water level detector 10 is connected with the control valve 6 for signals. When the water level detector 10 detects that the water level is higher than the set value, it sends the signal to the control valve 6. The control valve 6 opens, and the water flows into the second water collection tank through the first connecting water pipe 9. 7. On the one hand, the second water collecting tank 7 stores a certain amount of water, and on the other hand, it is discharged through the third drain pipe 8 .

In specific use, when the generator is running normally, there is a small amount of condensed water in the air cooler, and the leaked water flows from the sump 12 into the first water collecting tank 5. According to the amount of leaked water, the opening size of the valve 4 is adjusted. 1. When a water leakage accident occurs, the water quickly fills the first water collecting tank 5, and the water level detector 10 detects the water accumulation alarm, which sends a signal to the monitoring center and the control valve 6 to remind the operator that there is a water leakage accident. The control valve 6 opens, and the water body Flow into the second water collection tank 7 through the first connecting water pipe 9, and the second water collection tank 7 stores a certain amount of water on the one hand, and discharges through the third drain pipe 8 on the other hand.

The utility model can accurately and timely prompt the water leakage of the air cooler, and can discharge the water leakage at the first time, so as to ensure the safe operation of the unit and facilitate the timely maintenance of the operators.

Finally, it should be noted that: the above is only a preferred embodiment of the utility model, and is not intended to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art , it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (3)

1. a hydropower generator air cooler leakage inspector, including control valve (6), the second header tank (7) and water Bit detector (10), it is characterised in that the bottom of air cooler (1) is provided with water leg (12), described water leg (12) and if Dry second connecting water pipe (11) connects, and described second connecting water pipe (11) and the first header tank (5) connect, described first header tank (5) sidewall is provided with described level switch (10), and the side of described first header tank (5) is provided with valve (4), described valve (4) connecting with second row water pipe (3), the opposite side of described first header tank (5) is provided with described control valve (6), described control valve (6) and the first connecting water pipe (9) connects, and described first connecting water pipe (9) and described second header tank (7) connect, and described second Header tank (7) and the 3rd drain pipe (8) connect.

A kind of hydropower generator air cooler leakage inspector the most according to claim 1, it is characterised in that institute The side stating water leg (12) is provided with first row water pipe (2), described first row water pipe (2) and described second row water pipe (3) connection.

A kind of hydropower generator air cooler leakage inspector the most according to claim 1, it is characterised in that institute State level switch (10) and described control valve (6) signal connects.