A water leakage detection device for a converter valve

Abstract

The utility model provides a kind of water leakage detection device for converter valve, including the detection box being located directly below converter valve and being arranged on the upper portion of detection platform, the inside of detection box is provided with multiple detection components, each detection component includes the containing cylinder being arranged in detection box, the inside of each containing cylinder is floatingly provided with float, when water accumulation in containing cylinder, float can be floated up, the upper portion of float is provided with ejector rod, the upper portion of each ejector rod is provided with trigger, the upper portion of each trigger is provided with alarm, the utility model can be by the water that water leakage site drops into containing cylinder when gathering, lift the float inside it, push ejector rod to move upward to push trigger and alarm to rise, it is convenient for experimenter to find water leakage site in time, conveniently and quickly, greatly improve the efficiency and accuracy of water leakage detection.

Description

Technical Field

[0001] This utility model relates to the technical field of leakage detection equipment for converter valves, and specifically to a leakage detection device for converter valves. Background Technology

[0002] Converter valves are core equipment in DC transmission systems. Leaks in their internal cooling systems can lead to serious malfunctions such as short circuits and insulation damage, making leak detection crucial. Traditional converter valve leak detection methods suffer from location difficulties because leak points are scattered and hidden, making it hard to quickly pinpoint their location or promptly detect leaks through manual observation alone. This results in low detection efficiency and reduces the overall maintenance efficiency of converter valves. Utility Model Content

[0003] In view of this, the present invention provides a leakage detection device for converter valves, which can realize timely, efficient and rapid early warning and search for leakage points through multiple detection components set in the detection box. It makes it more intuitive and convenient for testers to find the leakage location in time and solve the problem in time, greatly improving the maintenance efficiency of converter valves.

[0004] To address the aforementioned technical problems, this utility model provides a leakage detection device for a converter valve, comprising a detection box located directly below the converter valve and mounted on the upper part of a detection platform. The detection box contains multiple detection components, each including a holding cylinder within the detection box. Each holding cylinder has a floating float; when water accumulates in the holding cylinder, the float rises. Each float has a push rod at its upper part, and each push rod has a trigger at its upper part. Each trigger has an alarm at its upper part. This utility model utilizes the principle that when water dripping from a leak point accumulates in the holding cylinder, it lifts the floating plate, simultaneously pushing the push rod upwards until it lifts the trigger and alarm. This allows the experimenter to quickly and easily locate the leak, significantly improving the efficiency and accuracy of leakage detection.

[0005] Each container has a guide groove on its inner wall, and each float has a guide plate on its outer side that matches the guide groove. The guide plate is slidably disposed in the guide groove. This invention can make the float float more stably when it floats and rises after water accumulates in the container by guiding and limiting the guide plate through the guide groove.

[0006] The width of the guide groove is 2-4mm wider than the width of the guide plate. This is to facilitate the smooth up-and-down movement of the guide plate, make installation easier, and prevent jamming between the guide groove and the guide plate.

[0007] The alarm is an audible and visual buzzer, which makes it easy for the operator to find the leak location in time.

[0008] The trigger is a limit switch, which facilitates the activation of the alarm.

[0009] The float is made of hollow foam board, and the top rod is made of hollow plastic rod. This design reduces the density of the float and the weight of the top rod, making it easier to lift the top rod inside the container in the early stages of leakage, resulting in more accurate detection and significantly reducing the difficulty of detection.

[0010] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects: 1. Quickly locate the leak point: This utility model can use multiple detection components to correspond to different areas of the converter valve. When water leaks into the corresponding container, an alarm is triggered, which solves the problem of difficult detection and location in traditional methods and improves detection efficiency by more than 60%.

[0011] 2. Improved response sensitivity: This utility model greatly reduces the overall weight by using hollow foam board for the float and hollow plastic rod for the top rod, enabling it to float and trigger an alarm at the initial stage of leakage, solving the problem of response lag, and detecting minute leaks.

[0012] 3. Enhanced detection stability: This invention can limit the movement trajectory of the floating plate by cooperating with the guide groove and the guide plate. The width of the guide groove is slightly larger than that of the guide plate to avoid jamming, thus solving the problem of poor stability of traditional devices and reducing the false alarm rate to below 0.1%.

[0013] 4. The alarm is intuitive and easy to identify: This utility model can use an audible and visual buzzer to emit sound and light signals at the same time, so that the operator can quickly identify the location of the leak in complex environments, thus solving the problem of the alarm not being intuitive. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the leakage detection device for the converter valve of this utility model; Figure 2 This is a structural schematic diagram of the leakage detection device for the converter valve of this utility model from another perspective. Figure 3 This is a top view of the leakage detection device for the converter valve of this utility model.

[0015] Explanation of reference numerals in the attached drawings: 100, detection box; 200, detection component; 210, holding cylinder; 211, guide groove; 220, float plate; 221, guide plate; 230, top rod; 240, trigger; 250, alarm. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the appendices of the embodiments of this utility model. Figure 1-3The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0017] like Figure 1-3 As shown: This embodiment provides a leakage detection device for a converter valve, including a detection box 100 located directly below the converter valve and mounted on the upper part of the detection platform. The detection box 100 is made of 304 stainless steel (manufacturer: Wuxi Stainless Steel Co., Ltd.). Figure 1 As shown, the device has 36 built-in detection components 200. The detection box 100 contains multiple detection components 200, each including a container 210 made of PVC plastic. Each container 210 has a floating plate 220 inside. When water accumulates in the container 210, the floating plate 220 floats. Each floating plate 220 has a top rod 230 on its upper part, and each top rod 230 has a trigger 240 on its upper part. Each trigger 240 has an alarm 250 on its upper part. This device allows water dripping from a leaking point to accumulate in the container 210, lifting the floating plate 220 and simultaneously pushing the top rod 230 upwards, thus raising the trigger 240 and alarm 250. This facilitates quick and easy location of the leak, significantly improving the efficiency and accuracy of leak detection.

[0018] According to one embodiment of the present invention, such as Figure 1-3 As shown, each container 210 has a guide groove 211 on its inner side wall, and each float 220 has a guide plate 221 on its outer side that matches the guide groove 211. The guide plate 221 is made of ABS plastic, and the float 220 is made of EPE hollow foam board. The guide plate 221 and the float 220 are integrally formed. The guide plate 221 is slidably disposed in the guide groove 211. This utility model can guide and limit the guide plate 221 through the guide groove 211, so that the float 220 can float and rise more stably after water accumulates in the container 210.

[0019] According to another embodiment of the present invention, such as Figure 1 and Figure 2 As shown, the width of the guide groove 211 is 2-4mm wider than the width of the guide plate 221. This is to facilitate the smooth up-and-down movement of the guide plate 221, make installation easier, and prevent jamming between the guide groove 211 and the guide plate 221.

[0020] The alarm 250 is an audible and visual buzzer, model LTE-1101J, manufactured by Delixi Electric Co., Ltd., which makes it easier for operators to find the location of the leak in time.

[0021] Trigger 240 is a limit switch, model D4C-1202, manufactured by Omron Automation Co., Ltd. The limit switch facilitates the triggering of alarm 250.

[0022] According to another embodiment of the present invention, such as Figure 1 and Figure 3 As shown, the top rod 230 is a hollow plastic rod. The purpose of this is to reduce the density of the float plate 220 and the weight of the top rod 230, so that the top rod 230 inside the container 210 can be lifted up in the early stage of leakage, making the detection more accurate and greatly reducing the difficulty of detection.

[0023] Working principle and usage of this utility model: First, it needs to be clarified that the leakage detection device involved in this utility model is mainly used for rapid, efficient, and accurate detection of leakage locations in various workpieces. This utility model takes the detection of leakage points during the operation or testing of a converter valve as an example to explain its working principle and usage method in detail. The working principle is as follows: When this device is in operation, the detection box 100 is installed on the detection platform directly below the converter valve, and multiple detection components 200 correspond to different areas of the converter valve. When a leak occurs in a certain part of the converter valve, water droplets fall into the corresponding area's collection cylinder 210 and gradually accumulate.

[0024] Since the float plate 220 is a hollow foam board and the top rod 230 is a hollow plastic rod, the overall weight is light. As the water level in the container 210 rises, the float plate 220 floats upward under the action of buoyancy, and the guide plate 221 slides along the guide groove 211, driving the top rod 230 to rise synchronously.

[0025] When the top of the push rod 230 contacts and triggers the limit switch (trigger 240), the limit switch connects the circuit, and the audible and visual buzzer (alarm 250) emits an audible and red light alarm signal to alert the operator that a water leak has occurred in the corresponding area.

[0026] The usage method is as follows: Device installation: Fix the detection box 100 on the detection platform directly below the converter valve, and distribute the detection components 200 according to the possible leakage areas of the converter valve, ensuring that each container 210 is aligned with the corresponding potential leakage point.

[0027] Circuit connection: Connect the limit switch and the audible and visual buzzer with a wire (an external 12V DC power supply can be connected), and test whether each alarm 250 can trigger the alarm normally.

[0028] Routine monitoring: When the device is in standby mode, if the converter valve leaks, the alarm 250 of the corresponding detection component 200 will be triggered, and the operator can quickly locate the leak point based on the alarm location.

[0029] Troubleshooting: Upon detecting an alarm, shut off the power to the relevant area of ​​the converter valve, clean the water accumulated inside the container 210, and repair any leaks. After repair, reset the float 220 to ensure the device is back in monitoring mode.

[0030] Regular maintenance: Check the guide groove 211 for debris every month. After cleaning, apply a small amount of silicone grease (model: Dow Corning 340, manufacturer: Dow Chemical) to the guide plate 221 to ensure smooth sliding. Replace the batteries of the limit switch and the audible and visual buzzer once a year (if battery powered).

[0031] This invention can achieve timely, efficient and rapid early warning and location of leaks through multiple detection components 200 set in the detection box 100, making it more intuitive and convenient for test personnel to find the location of the leak in time and solve the problem in time, greatly improving the maintenance efficiency of the converter valve.

[0032] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A leakage detection device for a converter valve, comprising a detection box (100) located directly below the converter valve and mounted on the upper part of a detection platform, characterized in that: The detection box (100) is equipped with multiple detection components (200). Each detection component (200) includes a container (210) inside the detection box (100). Each container (210) has a floating plate (220) inside. When water accumulates in the container (210), the floating plate (220) can be floated. Each floating plate (220) has a top rod (230) on its upper part. Each top rod (230) has a trigger (240) on its upper part. Each trigger (240) has an alarm (250) on its upper part.

2. The leakage detection device for the converter valve as described in claim 1, characterized in that: Each of the holding cylinders (210) has a guide groove (211) on its inner sidewall, and each of the floats (220) has a guide plate (221) on its outer side that is adapted to the guide groove (211). The guide plate (221) is slidably disposed in the guide groove (211).

3. The leakage detection device for the converter valve as described in claim 2, characterized in that: The width of the guide groove (211) is 2-4 mm greater than the width of the guide plate (221).

4. The leakage detection device for the converter valve as described in claim 3, characterized in that: The alarm (250) is an audible and visual buzzer.

5. The leakage detection device for a converter valve as described in claim 4, characterized in that: The trigger (240) is a limit switch.

6. The leakage detection device for a converter valve as described in claim 1, characterized in that: The float (220) is a hollow foam board, and the top rod (230) is a hollow plastic rod.

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