Transformer butterfly valve state visual device

Abstract

The utility model relates to the technical field of transformers, in particular to a transformer butterfly valve state visual device which comprises a valve cover, an indicating piece is arranged in the valve cover, a plurality of observation windows are arranged on the outer wall of the valve cover in different directions, the indicating piece is connected with the top end of a driving valve rod of a valve plate, and two coatings with different colors are arranged on the side face of the indicating piece. When the valve plate is opened and closed, the indicating piece is driven to rotate through the valve rod, so that the coatings with different colors are moved to the observation window, and the opening and closing state of the valve plate is displayed. According to the transformer butterfly valve state visual device, the bicolor coating indicating piece integrated in the valve cover is matched with the multidirectional observation window, operation and maintenance personnel can visually judge the opening and closing state of the valve plate through color identification without disassembling the butterfly valve, and the overheating risk caused by misjudgment is thoroughly eliminated. The indicating piece coating is made of a rare earth element light storage material, and can continuously emit light for more than 12 hours in a dark environment after absorbing visible light in the daytime, so that the identification problem in a night patrol or emergency state is solved.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, and more specifically, to a transformer butterfly valve status visualization device. Background Technology

[0002] In the power system field, transformers are core equipment, and the reliability of their cooling systems directly affects the safety of equipment operation. Transformer butterfly valves, as key control components in the cooling oil circuit, require real-time monitoring of their status (open / closed) to prevent malfunctions such as overheating and localized oil flow blockage. However, existing butterfly valve structures have the following technical defects:

[0003] Visual defects of fully sealed locking structure

[0004] Traditional fully sealed butterfly valves use a locking mechanism to ensure the valve core position is fixed, but their completely sealed design prevents maintenance personnel from directly observing the valve plate status. During maintenance or emergency operations, the butterfly valve must be manually disassembled to verify whether it is open, which is cumbersome and carries the risk of misjudgment. Statistics show that transformer overheating failures caused by misjudgment of butterfly valve status account for 3% to 5%.

[0005] Some butterfly valves use exposed status indicators (such as mechanical scales or simple markings), which can achieve status observation, but have significant drawbacks. The indicators are easily corroded by oil and ultraviolet radiation, resulting in blurred or detached markings, and there is a lack of effective identification methods during nighttime inspections.

[0006] Existing visualization solutions often require opening observation holes on the valve body or adding external sensors, which damages the original sealing structure of the butterfly valve and increases the risk of oil leakage. At the same time, external sensors suffer from electromagnetic interference, high maintenance costs, and are difficult to meet the reliability requirements of high-voltage environments. Utility Model Content

[0007] The purpose of this invention is to provide a transformer butterfly valve status visualization device to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides a transformer butterfly valve status visualization device, including a valve cover, an indicator inside the valve cover, and several observation windows in different directions on the outer wall of the valve cover. The indicator is connected to the top of the drive valve rod of the valve plate, and the side of the indicator is coated with two different colors. When the valve plate is opened or closed, the valve rod drives the indicator to rotate, thereby moving the different colored coatings to the observation windows to display the opening and closing status of the valve plate.

[0009] Preferably, the indicator has four coatings, which are evenly distributed on the outer wall of the indicator, and the two coatings that are arranged opposite each other are the same color.

[0010] Preferably, the valve cover has adjustment holes on both sides of its bottom. The adjustment holes are elongated and fixed to the outer frame of the valve plate by bolts. The installation position of the valve cover can be adjusted by moving the bolts within the adjustment holes.

[0011] Preferably, a transparent cover is provided on the outside of the observation window, and the transparent cover is fixed to the outer wall of the valve cover by bolts.

[0012] Preferably, a sealing gasket is provided between the bottom of the valve cover and the top outer wall of the valve plate outer frame.

[0013] Preferably, the bottom of the indicator is provided with a valve stem mating groove, which is adapted to the shape of the top end of the drive valve stem of the valve plate.

[0014] Preferably, the outer wall dimension of the indicator is smaller than the internal space dimension of the valve cover, and a number of elastic locking elements are installed on the top inner wall of the valve cover. The elastic locking elements are arc-shaped metal spring sheet structures, with the top welded and fixed to the inner wall of the valve cover, and the bottom pressed against the top surface of the indicator.

[0015] Preferably, the coating on the indicator is made of rare earth element light-emitting material, which can continuously emit light for more than 12 hours in a dark environment after absorbing visible light.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] In this transformer butterfly valve status visualization device, the dual-color coating indicator integrated inside the valve cover, in conjunction with the multi-directional observation window, allows maintenance personnel to intuitively judge the valve plate's opening and closing status through color markings (such as red / green) without disassembling the butterfly valve, completely eliminating the risk of overheating caused by misjudgment.

[0018] The coating of the indicator uses rare earth element light-emitting materials, which can absorb visible light during the day and continue to glow for more than 12 hours in the dark, solving the identification problem during night patrols or emergency situations.

[0019] A sealing gasket is placed between the valve cover and the valve plate, and the elongated design of the adjustment hole ensures both sealing performance and compatibility with butterfly valves of different specifications. The indicator element is engaged with the drive valve stem via a valve stem mating groove, which can withstand transformer operating vibration and prevent inaccurate indication. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the valve cover in this utility model;

[0022] Figure 3This is a schematic diagram of the bottom structure of the valve cover in this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the indicator in this utility model;

[0024] The meanings of the labels in the diagram are as follows:

[0025] 1. Valve cover; 11. Observation window; 12. Adjustment hole; 13. Elastic locking element; 2. Valve plate; 3. Sealing gasket; 4. Transparent cover; 5. Indicator; 51. Valve stem mating groove. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] This utility model provides a transformer butterfly valve status visualization device, such as... Figures 1-4 As shown, the valve includes a valve cover 1, an indicator 5 inside the valve cover 1, and several observation windows 11 in different directions on the outer wall of the valve cover 1. The indicator 5 is connected to the top of the drive valve stem of the valve plate 2. The side of the indicator 5 is coated with two different colors. When the valve plate 2 is opened or closed, the valve stem drives the indicator 5 to rotate, thereby moving the different colored coatings to the observation windows 11 to show the opening and closing state of the valve plate 2. Through the indicator 5 inside the valve cover 1 and the several observation windows 11 in different directions on the outer wall of the valve cover 1, the opening and closing state of the valve plate 2 is clearly displayed. The indicator 5 is tightly connected to the top of the drive valve stem of the valve plate 2. When the valve plate 2 is opened or closed, the drive valve stem drives the indicator 5 to rotate. The side of the indicator 5 is coated with two different colors. As the indicator 5 rotates, the different colored coatings move to the observation windows 11, thus clearly showing the opening and closing state of the valve plate 2. This structural design is not only simple and clear, but also easy to operate, greatly improving the visualization and accuracy of the transformer butterfly valve's status.

[0028] In this embodiment, the indicator 5 has four coatings, evenly distributed on the outer wall of the indicator 5, with two opposite coatings having the same color. The even distribution of the four coatings on the indicator 5 and the fact that two opposite coatings have the same color ensure that the same color indication can be clearly seen from different observation windows 11 of the valve cover 1, thereby accurately determining the opening and closing state of the valve plate 2 and improving the reliability and intuitiveness of the indication.

[0029] Specifically, adjustment holes 12 are provided on both sides of the bottom of the valve cover 1. The adjustment holes 12 are elongated structures and are fixed to the outer frame of the valve plate 2 by bolts. The installation position of the valve cover 1 is adjusted by moving the bolts within the adjustment holes 12. The design of the elongated adjustment holes 12 on both sides of the bottom of the valve cover 1 allows the installation position of the valve cover 1 to be adjusted by moving the bolts within the adjustment holes 12, making the device adaptable to butterfly valves of different specifications and improving the versatility and flexibility of the device.

[0030] Furthermore, a transparent cover 4 is provided on the outside of the observation window 11, and the transparent cover 4 is fixed to the outer wall of the valve cover 1 by bolts. The transparent cover 4 on the outside of the observation window 11 not only protects the observation window 11 from interference and damage from the external environment, but also makes it easier for maintenance personnel to observe the coating color of the indicator 5 through the transparent cover 4, further improving the visualization and practicality of the device.

[0031] Furthermore, a sealing gasket 3 is provided between the bottom of the valve cover 1 and the top outer wall of the valve plate 2 outer frame. This effectively ensures the sealing between the valve cover 1 and the valve plate 2, preventing oil leakage and the intrusion of external impurities, and improving the reliability and safety of the device.

[0032] Furthermore, the bottom of the indicator 5 is provided with a valve stem mating groove 51, which is adapted to the shape of the top end of the drive valve stem of the valve plate 2. This ensures a tight connection and stable rotation between the indicator 5 and the drive valve stem, preventing the indicator 5 from loosening or falling off during the opening and closing of the valve plate 2, and improving the stability and reliability of the device.

[0033] Furthermore, the outer wall dimension of the indicator 5 is smaller than the internal space dimension of the valve cover 1. This smaller outer wall dimension allows the indicator 5 to rotate freely inside the valve cover 1 without being obstructed or rubbed by the inner wall of the valve cover 1, ensuring smooth and accurate rotation. Several elastic locking elements 13 are installed on the top inner wall of the valve cover 1. These elastic locking elements 13 are arc-shaped metal spring structures, with their tops welded to the inner wall of the valve cover 1 and their bottoms pressed against the top surface of the indicator 5. This prevents the valve plate from loosening due to transformer vibration during operation, thus preventing it from opening and closing on its own. When the valve plate 2 needs to be opened or closed, the valve cover 1 is removed, and the indicator 5 is rotated.

[0034] Furthermore, the coating on indicator 5 is made of rare-earth element photoluminescent material, which can continuously emit light for more than 12 hours in the dark after absorbing visible light. This solves the identification problem during nighttime patrols or emergency situations, and improves the visibility and practicality of the device.

[0035] When in use, the transformer butterfly valve status visualization device of this utility model includes a valve cover 1, an indicator 5 inside the valve cover 1, and several observation windows 11 arranged in different directions on the outer wall of the valve cover 1. The indicator 5 is connected to the top of the drive valve stem of the valve plate 2, and the side of the indicator 5 is coated with two different colors.

[0036] The bottom of the indicator 5 is provided with a valve stem mating groove 51, which is adapted to the shape of the top end of the drive valve stem of the valve plate 2, ensuring a tight connection between the indicator 5 and the drive valve stem. When the valve plate 2 performs an opening and closing action, the drive valve stem drives the indicator 5 to rotate.

[0037] The indicator 5 has four coatings evenly distributed on its outer wall, with two opposite coatings being the same color. As the indicator 5 rotates, the coatings of different colors move to the observation window 11, allowing maintenance personnel to clearly see the colors of the coatings and thus determine the opening and closing status of the valve plate 2.

[0038] Adjustment holes 12 are provided on both sides of the bottom of the valve cover 1. The adjustment holes are elongated and are fixed to the outer frame of the valve plate 2 by bolts. By moving the bolts within the adjustment holes 12, the installation position of the valve cover 1 can be adjusted, so that the device can be adapted to butterfly valves of different specifications.

[0039] A transparent cover 4 is provided on the outside of the observation window 11. The transparent cover 4 is fixed to the outer wall of the valve cover 1 by bolts, protecting the observation window 11 from interference and damage from the external environment. Maintenance personnel can easily observe the coating color of the indicator 5 through the transparent cover 4, improving the visibility of the device.

[0040] A sealing gasket 3 is provided between the bottom of the valve cover 1 and the top outer wall of the valve plate 2 frame, which effectively ensures the sealing between the valve cover 1 and the valve plate 2, preventing oil leakage and the intrusion of external impurities.

[0041] The outer wall dimension of the indicator 5 is smaller than the internal space dimension of the valve cover 1, allowing the indicator 5 to rotate freely inside the valve cover 1 without being obstructed or rubbed by the inner wall of the valve cover 1. Several elastic locking elements 13 are installed on the top inner wall of the valve cover 1. These are arc-shaped metal spring pieces, with their tops welded to the inner wall of the valve cover 1 and their bottoms pressed against the top surface of the indicator 5, preventing the valve plate 2 from loosening due to transformer vibration during operation and causing it to open and close on its own.

[0042] The coating on indicator 5 is made of rare-earth element photoluminescent material, which can continuously emit light for more than 12 hours in the dark after absorbing visible light. This solves the identification problem during night patrols or emergency situations, and improves the visibility and practicality of the device.

[0043] When the valve plate 2 needs to be opened or closed, the maintenance personnel need to first remove the valve cover 1, and then rotate the indicator 5 to drive the valve stem to open or close the valve plate 2.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A transformer butterfly valve status visualization device, including a valve cover (1), characterized in that: The valve cover (1) is provided with an indicator (5) inside. The valve cover (1) has several observation windows (11) in different directions on its outer wall. The indicator (5) is connected to the top of the drive valve rod of the valve plate (2). The side of the indicator (5) is provided with two different colored coatings. When the valve plate (2) performs the opening and closing action, the valve rod drives the indicator (5) to rotate, thereby moving the different colored coatings to the observation window (11) to show the opening and closing state of the valve plate (2).

2. The transformer butterfly valve status visualization device according to claim 1, characterized in that: The indicator (5) has four coatings, which are evenly distributed on the outer wall of the indicator (5), and the two coatings that are set opposite each other are the same color.

3. The transformer butterfly valve status visualization device according to claim 1, characterized in that: The valve cover (1) has adjustment holes (12) on both sides of its bottom. The adjustment holes (12) are elongated structures. The adjustment holes (12) are fixed to the outer frame of the valve plate (2) by bolts. The installation position of the valve cover (1) is adjusted by moving the bolts in the adjustment holes (12).

4. The transformer butterfly valve status visualization device according to claim 1, characterized in that: A transparent cover (4) is provided on the outside of the observation window (11), and the transparent cover (4) is fixed to the outer wall of the valve cover (1) by bolts.

5. The transformer butterfly valve status visualization device according to claim 1, characterized in that: A sealing gasket (3) is provided between the bottom of the valve cover (1) and the top outer wall of the valve plate (2) frame.

6. The transformer butterfly valve status visualization device according to claim 1, characterized in that: The bottom of the indicator (5) is provided with a valve stem docking groove (51), which is adapted to the shape of the top of the drive valve stem of the valve plate (2).

7. The transformer butterfly valve status visualization device according to claim 1, characterized in that: The outer wall dimension of the indicator (5) is smaller than the internal space dimension of the valve cover (1). Several elastic locking parts (13) are installed on the top inner wall of the valve cover (1). The elastic locking parts (13) are arc-shaped metal spring sheet structures. The top is welded and fixed to the inner wall of the valve cover (1), and the bottom is pressed against the top surface of the indicator (5).

8. The transformer butterfly valve status visualization device according to claim 1, characterized in that: The coating on the indicator (5) is made of rare earth element light-emitting material, which can continue to emit light for more than 12 hours in the dark after absorbing visible light.

Images