CN205861293U - A kind of converter valve leakage inspector - Google Patents

Abstract

The utility model discloses a kind of converter valve leakage inspector, relate to leakage inspector field, this device includes expansion tank condensate tank of dehumidifier, expansion tank, expansion tank upper inside wall is horizontally disposed with installing plate, on installing plate the vertical water surface signal projector and signal receiver are set, be provided with the signaling reflex plate swum on the water surface in expansion tank；The two ends of converter valve are provided with inflow temperature sensor and leaving water temperature sensors, and converter valve includes the valve Room, being provided with the temperature sensor of the valve Room in the valve Room；Signal projector and the most vertical described signaling reflex plate of signal receiver are arranged；Signal projector and signal receiver are all threaded connection and are arranged on installing plate, and signal projector and signal receiver can move up and down by vertical described installing plate.Converter valve leakage inspector in this utility model, by expansion tank water level, converter valve Inlet and outlet water temperature and valve Room temperature, judges that converter valve is leaked, or other parts of cooling system leaks.

Description

A water leakage detection device for a diverter valve

technical field

The utility model relates to the field of water leakage detection devices, in particular to a water leakage detection device for a converter valve.

Background technique

The valve cooling system is one of the most important auxiliary equipment in the direct current transmission system. Whether its safe operation is stable or not is directly related to the normal operation of the entire direct current transmission. At present, the converter adopts the water cooling method, and its normal operation is to ensure the reliable operation of the converter valve. necessary condition.

If there are uncontrollable reasons such as leakage of the internal cooling water pipe in the converter valve, it will pose a great threat to the stable operation of the entire DC transmission system, and it is very likely to burn out the valve tower equipment. The water leakage detection function of the valve cooling system is not perfect, which is the main reason for the internal cooling water leakage and no alarm. This defect has brought serious hidden dangers to the safe and stable operation of the DC transmission system, and caused huge property losses to the enterprise.

At present, there are mainly two methods for water leakage detection in domestic direct current transmission systems. One is to collect the water leakage of the converter valve through the water leakage device to reflect the water leakage. The water leakage detection device can reflect the water leakage of the valve tower itself and can accurately judge the water leakage. location, but the water has to be collected, and the reflection speed is relatively slow. The disadvantage of this method is that it can judge whether there is water leakage by setting a threshold threshold, which cannot achieve the purpose of early warning.

Another method of water leakage detection is to monitor the starting signal of the supplementary water pump. This method is easily affected by the ambient temperature, and may malfunction in response to the internal conditions of the system.

Now there is an urgent need for a water leakage detection device that can reflect the water leakage situation, accurately determine the location of the water leakage, and detect the water leakage situation early to ensure the safe and stable operation of the DC transmission system and reduce property losses caused by water leakage and power outages.

Utility model content

Aiming at the defects existing in the prior art, the purpose of this utility model is to provide a diverter valve water leakage detection device, which can accurately judge whether the diverter valve in the cooling system is leaking through the detection of various physical quantities.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a water leakage detection device for a diverter valve, comprising:

The water level detection device of the expansion tank includes an expansion tank, the upper part of the inner wall of the expansion tank is horizontally provided with a mounting plate, and a signal transmitter and a signal receiver are arranged on the vertical water surface on the mounting plate, and a water tank floating on the water surface is arranged in the expansion tank. signal reflector;

The water inlet end of the diverter valve is provided with an inlet water temperature sensor, the water outlet end of the diverter valve is provided with an outlet water temperature sensor, the diverter valve includes a valve hall, and a valve hall temperature sensor is provided in the valve hall .

On the basis of the above technical solution, both the signal transmitter and the signal receiver are arranged vertically to the signal reflector.

On the basis of the above technical solution, both the signal transmitter and the signal receiver are connected to the mounting plate through threads, and the signal transmitter and the signal receiver can move up and down vertically on the mounting plate.

On the basis of the above technical solution, the water leakage detection device of the converter valve includes a water leakage judgment device, and the water leakage judgment device includes a first input end, a second input end, a third input end and a fourth input end, the The first input end is connected to the inlet water temperature sensor, the second input end is connected to the outlet water temperature sensor, the third input end is connected to the valve hall temperature sensor, and the fourth input end is connected to the signal receiving device.

On the basis of the above technical solution, the water leakage judging device includes a first output terminal, and the first output terminal is connected to the signal transmitter.

On the basis of the above technical solution, the water leakage judging device includes a second output terminal, and the second output terminal is provided with an alarm device.

Compared with the prior art, the utility model has the advantages of:

The water leakage detection device of the diverter valve in the utility model judges whether the diverter valve leaks water or other parts of the cooling system in the cooling system by detecting the water level data of the expansion tank, the temperature data of the inlet and outlet water of the diverter valve and the temperature data of the diverter valve valve hall. Water leakage, simple structure, accurate location of water leakage, and continuous and uninterrupted monitoring and early warning.

Description of drawings

Fig. 1 is a schematic structural diagram of a water leakage detection device for a diverter valve in an embodiment of the present invention.

In the figure: 1-water supply tank, 2-water supply pump, 3-deion exchanger, 4-cooling tower, 5-water level detection device for expansion tank, 51-signal transmitter, 52-signal receiver, 53-signal reflector , 54-expansion water tank, 6-circulation pump, 7-converter valve, 71-inlet water temperature sensor, 72-outlet water temperature sensor, 73-valve hall temperature sensor, 8-alarm device, 9-leakage judgment device.

detailed description

Embodiments of the utility model will be described in further detail below in conjunction with the accompanying drawings.

Referring to Fig. 1, the embodiment of the utility model provides a water leakage detection device for a diverter valve cooling system, wherein the diverter valve cooling system includes a replenishing water tank 1, a replenishing water pump 2, a deionization exchanger 3, Cooling tower 4, circulation pump 6, diverter valve 7, the cooling system cools diverter valve 7 through external cooling water.

The water leakage detection device for a diverter valve includes:

The expansion tank water level detection device 5 includes an expansion tank 54, a mounting plate 55 is arranged horizontally on the upper part of the expansion tank 54 inner wall, a signal transmitter 51 and a signal receiver 52 are arranged on the vertical water surface on the mounting plate 55, and the signal transmitter 51 and the signal receiver 52 All are connected to the mounting plate 55 by threads, the signal transmitter 51 and the signal receiver 52 can move up and down vertically on the mounting plate 55, the expansion tank 54 is provided with a signal reflection plate 53 floating on the water surface, the signal transmitter 51 and the signal receiving The devices 52 are arranged vertically to the signal reflector 53;

The water inlet end of the diverter valve 7 is provided with an inlet water temperature sensor 71, and the water outlet end of the diverter valve 7 is provided with an outlet water temperature sensor 72. The diverter valve 7 includes a valve hall, and a valve hall temperature sensor 73 is provided in the valve hall.

The water leakage detection device of the converter valve includes a water leakage judging device 9, and the water leakage judging device 9 includes a first input end, a second input end, a third input end, a fourth input end, a first output end and a second output end, the first One input end is connected to the water inlet temperature sensor 71, the second input end is connected to the outlet water temperature sensor 72, the third input end is connected to the valve hall temperature sensor 73, the fourth input end is connected to the signal receiver 52, and the first output end is connected to the signal transmitter 51 , the second output end is provided with an alarm device 8 .

The diverter valve water leakage detection device judges whether the cooling system leaks by detecting the water level of the expansion tank 54, and judges whether the diverter valve 7 is leaking through the temperature of the water in and out of the diverter valve 7 and the temperature of the valve hall of the diverter valve. The specific judgment process is as follows. The water level of the water tank 54 drops significantly, and the data of the water inlet temperature sensor 71, the water outlet temperature sensor 72 and the valve hall temperature sensor 73 are stable, then the diverter valve 7 does not leak water in the cooling system, and other components of the cooling system leak water; if the water level of the expansion tank 54 drops significantly, If the data of the water inlet temperature sensor 71 and the water outlet temperature sensor 72 are stable, and the data of the valve hall temperature sensor 73 rises sharply, it means that the diverter valve 7 is leaking.

The water leakage detection device of the diverter valve in the utility model judges whether the diverter valve leaks water or other parts of the cooling system in the cooling system by detecting the water level data of the expansion tank, the temperature data of the inlet and outlet water of the diverter valve and the temperature data of the diverter valve valve hall. Water leakage, simple structure, accurate location of water leakage, and continuous and uninterrupted monitoring and early warning.

The utility model is not only limited to the above-mentioned best implementation mode, anyone can draw other various forms of products under the enlightenment of the utility model, but no matter make any changes in its shape or structure, anyone who has the same features as the utility model The same or similar technical solutions are all within the scope of protection.

Claims (6)

1. a converter valve leakage inspector, it is characterised in that including:

Expansion tank condensate tank of dehumidifier (5), including expansion tank (54), described expansion tank (54) upper inside wall is horizontally disposed with Installing plate (55), the upper vertical water surface of described installing plate (55) signal projector (51) and signal receiver (52) be set, described The signaling reflex plate (53) swum on the water surface it is provided with in expansion tank (54)；

The water inlet end of described converter valve (7) is provided with inflow temperature sensor (71), and the water side of described converter valve (7) is provided with water outlet Temperature sensor (72), described converter valve (7) includes the valve Room, being provided with valve Room temperature sensor (73) in the described valve Room.

2. converter valve leakage inspector as claimed in claim 1, it is characterised in that: described signal projector (51) and signal The most vertical described signaling reflex plate (53) of receptor (52) is arranged.

3. converter valve leakage inspector as claimed in claim 1, it is characterised in that: described signal projector (51) and signal Receptor (52) is all threadingly attached on described installing plate (55), described signal projector (51) and signal receiver (52) Can vertical described installing plate (55) move up and down.

4. converter valve leakage inspector as claimed in claim 1, it is characterised in that: described converter valve leakage inspector Including judgment means of leaking (9), described in leak judgment means (9) include first input end, the second input, the 3rd input and Four-input terminal, described first input end connects described inflow temperature sensor (71), goes out described in described second input connection Water temperature sensor (72), described 3rd input connects described valve Room temperature sensor (73), and described four-input terminal connects Described signal receiver (52).

5. converter valve leakage inspector as claimed in claim 4, it is characterised in that judgment means of leaking described in: (9) includes First outfan, described first outfan connects described signal projector (51).

6. converter valve leakage inspector as claimed in claim 5, it is characterised in that judgment means of leaking described in: (9) includes Second outfan, described second outfan is provided with alarm device (8).