Oil sampling installation box for explosion-proof protection of converter transformer and use method

Abstract

The invention discloses an oil sampling installation box for explosion-proof protection of a converter transformer and a using method, and belongs to the technical field of converter transformer maintaining.The installation box comprises an installation box body, a foldable door plate and a protective top cover, and the foldable door plate comprises a first folding plate and a second folding plate; the first folding plate is hinged to the second folding plate, the second folding plate is hinged to the mounting box body, the foldable door plate can be opened to form an L-shaped door plate, and the bottom face of the protective top cover is detachably mounted on the top of the mounting box body and the top of the foldable door plate. The protection top cover, the installation box body and the foldable door plate form an explosion-proof space with a single-face opening. The problem that in the prior art, sampling operators are not protected can be solved.

Description

Technical Field

[0001] The invention belongs to the technical field of converter transformer maintenance, and in particular relates to an oil sampling installation box for explosion-proof protection of a converter transformer and a use method thereof. Background Art

[0002] Oil chromatography analysis is a very important daily inspection and internal fault analysis project for oil-immersed power transformers. It can be used to regularly monitor the internal health of the transformer and analyze the cause of the transformer failure when it fails. The failure risk of UHV converter transformers is significantly higher than that of ordinary transformers. Therefore, in order to increase the safety of operation and maintenance personnel when taking oil samples near the transformer body, most UHV converter stations have modified the oil sampling of the converter transformer body, and led the oil sampling of the body to the outside of the BOX-IN, as far away from the transformer body as possible. If an accident occurs in the converter transformer, the oil sampling personnel can be protected from direct harm. However, in this modification plan, the sampling position is still near the transformer, and there is a lack of protection measures for the sampling operators. When the converter transformer fails and explodes, the flying structural parts and splashing hot oil may still cause harm to the sampling operators. Summary of the invention

[0003] The object of the present invention is to provide an oil sampling installation box for explosion-proof protection of a converter transformer and a method of use, so as to solve the problem that the prior art lacks protection for sampling operators.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: In a first aspect, an oil sampling installation box for explosion-proof protection of a converter transformer comprises: an installation box body, a foldable door panel and a protective top cover, the foldable door panel comprises a first folding panel and a second folding panel, the first folding panel is hinged to the second folding panel, the second folding panel is hinged to the installation box body, the foldable door panel can be opened to form an L-shaped door panel, the bottom surface of the protective top cover can be detachably mounted on the top of the installation box body and the top of the foldable door panel, the protective top cover, the installation box body and the foldable door panel form an explosion-proof space with a single-sided opening.

[0005] In some embodiments, a door panel frame is mounted on the outer side of the foldable door panel.

[0006] In some embodiments, a first support member is disposed between the first folding plate and the second folding plate.

[0007] In some embodiments, a limiting member is provided at the connection between the installation box body and the second folding plate.

[0008] In some embodiments, the installation box body is a rectangular parallelepiped structure, the width of the installation box body is greater than or equal to 1.2 m, and the height of the installation box body is greater than or equal to 1.8 m.

[0009] In some embodiments, the foldable door panel is made of a stainless steel plate with a thickness of 2 mm.

[0010] In some embodiments, a hook is provided on the top of the mounting box body.

[0011] In some embodiments, a second support member is disposed on the top of the foldable door panel.

[0012] In some embodiments, the protective top cover is detachably mounted on the top of the installation box body and the foldable door panel via a hook and a second support member.

[0013] In a second aspect, a method for using an oil sampling installation box for explosion-proof protection of a converter transformer, based on the oil sampling installation box, comprises the following steps: Open the foldable door panel and take out the protective top cover from the inside of the installation box body; After rotating the first folding plate to a position perpendicular to the second folding plate and rotating the second folding plate to a position perpendicular to the installation box body, the foldable door panel is fixed; The protective top cover is installed on the top of the foldable door panel and the installation box body to form an explosion-proof space with a single-side opening.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides an oil sampling installation box for explosion-proof protection of a converter transformer, comprising: an installation box body, a foldable door panel and a protective top cover, the foldable door panel comprising a first foldable panel and a second foldable panel, the first foldable panel is hinged to the second foldable panel, the second foldable panel is hinged to the installation box body, the foldable door panel can be opened to form an L-shaped door panel, the bottom surface of the protective top cover can be detachably mounted on the top of the installation box body and the top of the foldable door panel, the protective top cover, the installation box body and the foldable door panel form an explosion-proof space with a single-sided opening. The door panel is designed to be foldable and is equipped with a protective top cover. After the foldable door panel is opened, it forms a small space with the installation box body and the top cover to perform oil sampling operations and surround the operator, so as to resist the impact and hot oil generated when the converter transformer explodes. This type of oil sampling installation box can provide a relatively safe operating space for operation and maintenance personnel, resist partial damage, and is simple to install, and can respond to emergencies in a timely manner. Increase protection for sampling operators.

[0015] In the foldable door panel of the present invention, the first foldable panel is connected to the second foldable panel by a hinged manner, and the second foldable panel is connected to the mounting box body by a hinged manner, thereby ensuring the stability and durability of the foldable door panel. The door panel frame is installed on the outer side of the foldable door panel, which can enhance the strength and stability of the foldable door panel and prevent deformation or damage under high pressure or high temperature environment.

[0016] The foldable door panel of the present invention is made of a stainless steel plate with a thickness of 2 mm. Such material selection not only ensures the strength and durability of the door panel, but also has a certain corrosion resistance, thereby extending the service life of the installation box.

[0017] The hook disposed on the top of the installation box body and the second support member disposed on the top of the foldable door panel of the present invention make it easier to install the protective top cover, and also enhance the overall structural stability of the installation box. A limiter is disposed at the connection between the installation box body and the second foldable panel, and a first support member is disposed between the first foldable panel and the second foldable panel, which can limit the opening angle of the foldable door panel to prevent accidental damage or injury to the door panel during the opening process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A front view of an oil sampling installation box for explosion-proof protection of a converter transformer provided by an embodiment of the present invention; Figure 2 A schematic diagram of a foldable door panel after being fixed in an oil sampling installation box for explosion-proof protection of a converter transformer provided by an embodiment of the present invention; Figure 3 This is a side view of the installation of the protective top cover in the embodiment of the present invention; Figure 4 It is a top view of the installation of the protective top cover in an embodiment of the present invention.

[0019] In the figure, 1, installation box body; 2, foldable door panel; 3, door panel frame; 4, hinge; 5, limit member; 6, first support member; 7, protective top cover; 8, hook; 9, second support member. DETAILED DESCRIPTION

[0020] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the specific embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0021] In the following description, a large number of details are given to provide a more thorough understanding of the present disclosure. However, it is obvious to those skilled in the art that the present disclosure can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present disclosure, some technical features known in the art are not described; that is, all features of actual embodiments are not described here, and well-known functions and structures are not described in detail.

[0022] It should be understood that when an element or layer is referred to as "on ...", "adjacent to ...", "connected to" or "coupled to" other elements or layers, it can be directly on, adjacent to, connected to or coupled to other elements or layers, or there can be intervening elements or layers. On the contrary, when an element is referred to as "directly on ...", "directly adjacent to ...", "directly connected to" or "directly coupled to" other elements or layers, there is no intervening element or layer. It should be understood that although the terms first, second, third, etc. can be used to describe various elements, components, regions, layers and / or parts, these elements, components, regions, layers and / or parts should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or part from another element, component, region, layer or part. Therefore, without departing from the teachings of the present disclosure, the first element, component, region, layer or part discussed below can be represented as the second element, component, region, layer or part. And when the second element, component, region, layer or part is discussed, it does not indicate that the present disclosure necessarily has the first element, component, region, layer or part.

[0023] The purpose of the terms used herein is only to describe specific embodiments and is not intended to be a limitation of the present disclosure. When used herein, the singular forms "one", "an" and "said / the" are also intended to include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "consisting of" and / or "comprising", when used in this specification, determine the presence of the features, integers, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts and / or groups. When used herein, the term "and / or" includes any and all combinations of the relevant listed items.

[0024] Embodiment 1 In order to increase the protection of sampling operators and enable operation and maintenance personnel to take oil samples behind a shield in a relatively safe operating space, the following issues need to be considered: (1) The installation box can withstand some damage and meet the needs of daily inspections and transformer failure risk assessments; (2) The installation box needs to have a high structural strength to withstand the impact of transformer explosions and the impact of small objects; (3) It is necessary to ensure that the protective space is sufficient to ensure that it can accommodate multiple people to perform oil sampling operations at the same time and provide them with shielding protection; (4) The difficulty of installation needs to be considered. The installation box is closed during normal operation and does not occupy the operation and maintenance channel space. When a situation occurs, the operation and maintenance personnel who need to take oil samples can quickly complete the installation, saving sampling operation time.

[0025] Therefore, if Figure 1As shown, this embodiment provides an oil sampling installation box for explosion-proof protection of converter transformers, including an installation box body 1, a foldable door panel 2, a door panel frame 3, a hinge 4, a limiter 5, a first support member 6, a protective top cover 7, a hook 8 and a second support member 9; The foldable door panel 2 includes a first foldable panel and a second foldable panel, the first foldable panel is hinged to the second foldable panel via a hinge 4, the second foldable panel is hinged to the mounting box body 1 via a hinge 4, the foldable door panel 2 is opened to form an L-shaped door panel, the bottom surface of the protective top cover 7 is detachably mounted on the top of the mounting box body 1 and the top of the foldable door panel 2, and the protective top cover 7, the mounting box body 1 and the foldable door panel 2 form an explosion-proof space with a single-sided opening; The oil sampling installation box body 1 is a rectangular parallelepiped structure, and the width and height must be sufficient, the width is not less than 1.2 meters, and the height is not less than 1.8 meters. The foldable door panel 2 is designed to be foldable, and can form an L shape after opening. The foldable door panel 2 is made of 2mm thick stainless steel plate, and the door panel frame 3 is reinforced and uses thickened and thickened stainless steel pipes. The foldable door panel 2 is installed on the oil sampling installation box body 1 through a hinge 4, and the hinge 4 uses a high-strength structure to ensure that it can withstand a certain impact.

[0026] like Figure 2 As shown, after the foldable door panel 2 is opened, it forms a 90° angle with the installation box body 1 through the limit member 5 and is securely fixed. The foldable door panel 2 is also folded by the hinge 4 and locked with the first support member 6. The protective top cover 7 is installed on the upper part of the installation box body 1. The protective top cover 7 is 1.3 meters long and 0.75 meters wide to ensure the personal safety of the operators below. The protective top cover 7 is detachable and can be stored inside the installation box body 1 when not in use, without taking up space. When in use, the operator manually places the protective top cover 7 on the installation box body 1 and the foldable door panel 2, and locks it with the hook 8 on the top of the installation box body 1 and the second support member 9 on the top of the foldable door panel 2, as shown. Figure 3 and Figure 4 As shown, a small space with one side open can be formed, inside which the operator can withstand the impact and explosion debris, hot oil, etc. from the direction and top of the transformer.

[0027] A further improvement of the present invention is that the door panel 2 is designed to be foldable, and after the door panel 2 is opened, it is firmly fixed by the stopper 5 and the support member 6 to form an L-shaped enclosure to protect the operator therein; A further improvement of this embodiment is that a detachable protective cover 7 is added to the top design. The protective cover is installed above the foldable door panel 2 and the installation box body 1, which can protect the operator's head. The protective cover 7 is a quick-release type, which is easy to disassemble and assemble and does not take up space. A further improvement of this embodiment is that the strength of each component of the oil sampling installation box is strengthened. The foldable door panel 2 is made of 2mm thick stainless steel plate, the door panel frame 3 is also made of thickened steel pipe, and the hinge 4, the stopper 5 and the first support member 6 are all reinforced to ensure the overall structural strength of the oil sampling installation box. A further improvement of this embodiment is that the outer dimensions of the oil sampling installation box are designed to be wider and higher, and the outer dimensions are larger, thereby providing a larger protection range.

[0028] The oil sampling installation box for explosion-proof protection of converter transformers provided in this embodiment can provide a shielding shelter for personal safety protection of oil sampling operators on the basis of the original rainproof and dustproof functions, compared with the normal oil sampling installation box. It can be used to resist impacts from the direction and top of the transformer, explosion debris and splashing hot oil, etc., thereby improving the safety of substation operation and maintenance personnel. In addition, the new oil sampling installation box is simple to install and easy to operate. It only needs to open the door panel and buckle the protective top cover on the upper part of the installation box, so as to respond to emergencies in a timely manner. When oil sampling is not needed, the cabinet door is folded up and the protective top cover is placed inside the installation box to save space.

[0029] Based on the above-mentioned oil sampling installation box, this embodiment also provides a method for using the oil sampling installation box for explosion-proof protection of converter transformers: In actual application, the original oil sampling valve of the converter transformer body is led out to the outside of BOX-IN and installed inside the above-mentioned oil sampling installation box. BOX-IN is a soundproof, heat-insulating or protective closed structure, which is often used for noise reduction of converter transformers. By closing the converter transformer body, the impact of the noise generated during its operation on the surrounding environment is reduced. The oil sampling installation box provided in this embodiment is installed on a firewall far away from the converter transformer body, fixed with expansion bolts, and the installation box body 1 is installed on the ground. When it is necessary to take oil samples, the operator opens the foldable door panel 2, folds it into an L shape, and puts the limiter 5 and the first support member 6 on the corresponding buckle for secure installation. The protective top cover 7 is buckled on the upper part of the installation box body 1, spanning the upper part of the installation box body 1 and the foldable door panel 2, thereby forming a single-sided open protective space. The operator can perform oil sampling operations here. After the oil sampling is completed, if the situation is urgent, the operator can evacuate immediately. If conditions permit, the operator removes the protective top cover 7, puts it in the cabinet, and closes the cabinet door of the installation box body 1.

[0030] A removable protective cover 7 is added to the top of the oil sampling installation box. The protective cover 7 is installed above the L-shaped door panel and the box body, which can protect the operator's head to prevent hot oil splashing and resist explosion debris; the outer dimensions of the oil sampling installation box are designed to be widened and raised. After installation, a small space can be formed to accommodate 2 people for oil sampling operations, which can play a certain protective role in the event of a transformer accident. The oil sampling installation box is easy to disassemble and assemble, and can be quickly assembled to deal with emergencies.

[0031] Embodiment 2 This embodiment provides an oil sampling installation box for explosion-proof protection of a converter transformer, and its structure includes an installation box body 1, a foldable door panel 2, a door panel frame 3, a protective top cover 7 and other auxiliary components.

[0032] The installation box body 1 adopts a rectangular parallelepiped structure, with a width of 1.2 meters or more and a height of 1.8 meters or more to ensure sufficient operating space and protection range. The material of the installation box body 1 is selected from high-strength, corrosion-resistant materials to withstand possible impacts and ensure long-term use.

[0033] The foldable door panel 2 includes a first foldable panel and a second foldable panel, which are connected by a hinge. The first foldable panel can rotate relative to the second foldable panel, and the second foldable panel can rotate relative to the installation box body 1. When the foldable door panel 2 is fully opened, the first foldable panel and the second foldable panel form an L-shaped door panel, which is convenient for operators to enter and exit and operate.

[0034] The door panel frame 3 is installed on the outer side of the foldable door panel 2 to enhance the overall strength and stability of the door panel. The material of the door panel frame 3 is also selected from high-strength, corrosion-resistant materials to ensure that the door panel is not easily deformed or damaged during long-term use.

[0035] The bottom surface of the protective top cover 7 is designed with hooks and supporting structures that match the installation box body 1 and the foldable door panel 2. When the protective top cover 7 is installed on the top of the installation box body 1 and the foldable door panel 2, a single-sided opening explosion-proof space can be formed to effectively resist potential threats such as impact from the direction of the converter transformer, explosion debris and hot oil.

[0036] A limiter 5 is provided at the connection between the installation box body 1 and the foldable door panel 2, which is used to fix the position of the foldable door panel 2 in the open state. A first support member 6 is provided between the first folding plate and the second folding plate of the foldable door panel 2, which is used to strengthen the supporting force of the door panel. A hook 8 is provided on the top of the installation box body 1, and a second support member 9 is provided on the top of the foldable door panel 2, which are matched with the hook and support structure of the protective top cover 7 to realize the detachable installation of the protective top cover 7.

[0037] Based on the structural design of the above oil sampling installation box, this embodiment also provides a method for using the oil sampling installation box for explosion-proof protection of a converter transformer, and the specific steps are as follows: S1, before taking oil samples, the oil sampling installation box needs to be installed on a firewall far away from the converter transformer body to ensure the safety of the operator. During installation, the installation box body 1 is fixed to the firewall with expansion bolts to ensure a firm and reliable installation.

[0038] S2, open the foldable door panel 2, and take out the protective top cover 7 from the inside of the installation box body 1. At this time, the first folding plate and the second folding plate of the foldable door panel 2 are respectively rotated to a vertical position to form an L-shaped door panel.

[0039] S3, use the stopper 5 to fix the position of the foldable door panel 2 in the open state to ensure that the door panel will not be accidentally closed or moved. At the same time, adjust the position and angle of the first support member 6 as needed to strengthen the supporting force of the door panel.

[0040] S4, after taking out the protective top cover 7 from the inside of the installation box body 1, install it on the top of the foldable door panel 2 and the installation box body 1. The protective top cover 7 is fixedly connected to the installation box body 1 and the top of the foldable door panel 2 through the hook 8 and the second support member 9 to form an explosion-proof space with a single-side opening.

[0041] The operator enters the formed explosion-proof space to perform the oil sampling operation. During the operation, the operator should strictly abide by the safety operating procedures to ensure his own safety. After the oil sampling operation is completed, the operator removes the protective top cover 7 from the top of the installation box body 1 and the foldable door panel 2, and stores it back inside the installation box body 1. Then close the foldable door panel 2 and use the limiter 5 to fix it in the closed state. Finally, the operator cleans and maintains the oil sampling installation box to ensure its reliability and safety in long-term use.

[0042] In this embodiment, the installation box body, the foldable door panel and the protective top cover together constitute an explosion-proof space with a single-sided opening. This design can effectively resist potential threats such as impact from the direction of the converter transformer, explosion debris and hot oil, and provide all-round safety protection for the operator. The installation box body and the door panel frame are made of high-strength, corrosion-resistant materials, which can withstand large impacts and pressures, ensuring stability and reliability in long-term use. At the same time, the design of the foldable door panel allows the door panel to remain stable when opened and closed, and is not easy to deform or damage. The foldable door panel is connected by a hinge and can be easily opened and closed to form an L-shaped door panel, which is convenient for the operator to enter and exit and operate. In addition, the detachable installation design of the protective top cover also makes the operation more flexible and convenient, and can be quickly installed or disassembled as needed.

[0043] Therefore, the entire oil sampling installation box is designed with foldable door panels and protective top covers, allowing operators to quickly form an explosion-proof space when needed, and can be conveniently stored and stored when not in use, which saves space and improves operational flexibility.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. An oil sampling installation box for explosion-proof protection of converter transformers, characterized in that: include: The invention comprises an installation box body (1), a foldable door panel (2) and a protective top cover (7), wherein the foldable door panel (2) comprises a first foldable panel and a second foldable panel, wherein the first foldable panel is hinged to the second foldable panel, and the second foldable panel is hinged to the installation box body (1), and the foldable door panel (2) can be opened to form an L-shaped door panel, and the bottom surface of the protective top cover (7) can be detachably mounted on the top of the installation box body (1) and the top of the foldable door panel (2), and the protective top cover (7), the installation box body (1) and the foldable door panel (2) form an explosion-proof space with a single-side opening.

2. The oil sampling installation box for explosion-proof protection of converter transformer according to claim 1 is characterized in that: A door panel frame (3) is installed on the outer side of the foldable door panel (2).

3. The oil sampling installation box for explosion-proof protection of converter transformer according to claim 1 is characterized in that: A first support member (6) is provided between the first folding plate and the second folding plate.

4. The oil sampling installation box for explosion-proof protection of converter transformer according to claim 1, characterized in that: A limiting member (5) is provided at the connection between the installation box body (1) and the second folding plate.

5. The oil sampling installation box for explosion-proof protection of converter transformer according to claim 1, characterized in that: The installation box body (1) is a rectangular parallelepiped structure; the width of the installation box body (1) is greater than or equal to 1.2 m; and the height of the installation box body (1) is greater than or equal to 1.8 m.

6. The oil sampling installation box for explosion-proof protection of converter transformer according to claim 1, characterized in that: The foldable door panel (2) is made of a stainless steel plate with a thickness of 2 mm.

7. The oil sampling installation box for explosion-proof protection of converter transformer according to claim 1, characterized in that: A hook (8) is provided on the top of the installation box body (1).

8. The oil sampling installation box for explosion-proof protection of converter transformer according to claim 7, characterized in that: A second supporting member (9) is arranged on the top of the foldable door panel (2).

9. The oil sampling installation box for explosion-proof protection of converter transformer according to claim 8, characterized in that: The protective top cover (7) is detachably mounted on the top of the installation box body (1) and the foldable door panel (2) via a hook (8) and a second support member (9).

10. A method for using an oil sampling installation box for explosion-proof protection of a converter transformer, characterized in that: The oil sampling installation box according to any one of claims 1 to 9 comprises the following steps: Open the foldable door panel (2) and take out the protective top cover (7) from the inside of the installation box body (1); After the first folding plate is rotated to a position perpendicular to the second folding plate, and the second folding plate is rotated to a position perpendicular to the installation box body, the foldable door panel (2) is fixed; The protective top cover (7) is installed on the top of the foldable door panel (2) and the installation box body (1) to form an explosion-proof space with a single-side opening.

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