Non-power-off sampling zero-hanging insulator string installation structure

Abstract

The utility model provides a non-power-cut sampling zero-hanging insulator string installation structure. An insulator string adopts a zero-hanging insulator string which is not connected with a live conductor and is the same as an electric power engineering insulator string in type. The insulator string is installed at a position of easy sampling observation height below an electric power engineering insulator string through the insulator string installation structure. The installation structure can be arranged by combining with existing facilities such as an outgoing line framework, an equipment bracket, a wall surface and a lamp post, and can also be installed by arranging a special framework, so that the sampling is convenient, the structure is simple, the installation is convenient, and economy and practicability are realized; multiple groups of zero-hanging insulator strings of corresponding types can be installed according to the types of insulator strings of electric power engineering, and the sampling requirements of hanging suspension insulator strings and strain insulator strings of live conductors in all scenes of an electric power system can be met. The mounting structure can be widely applied to projects such as transformer substations, switching stations, converter stations and outgoing line fields, and has good popularization and application values.

Description

TECHNICAL FIELD

[0001] The utility model belongs to electric power engineering technical field, concretely relates to a kind of installation structure of sampling zero hanging insulator string without power failure. BACKGROUND

[0002] In electric power engineering, there are a large number of suspension insulator strings and strain insulator strings, which are arranged on the top of busbar framework. Taking 500kV voltage grade electric power engineering as an example, the installation height of suspension insulator strings and strain insulator strings is about 27 meters from the ground, and the installation height of lightning conductor insulator string is about 35 meters from the ground. Therefore, due to the high installation height of suspension insulator strings and strain insulator strings, it is not easy to sample, which makes it difficult to discover and handle the health problems such as pollution flashover and aging of insulator strings in time.

[0003] Therefore, if the insulator string can be effectively sampled without affecting normal operation and maintenance, the health problems such as pollution flashover and aging can be determined, which is a problem to be solved at present. UTILITY MODEL CONTENT

[0004] In view of the defects of the prior art, the utility model provides an installation structure of sampling zero hanging insulator string without power failure, which can effectively solve the above problems.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] The utility model provides an installation structure of sampling zero hanging insulator string without power failure, which comprises an insulator string (1) and an insulator string installation structure; the insulator string (1) is a zero hanging insulator string without hanging live conductor, which is the same as the type of electric power engineering insulator string; the insulator string (1) is installed at a position with easy sampling observation height below the electric power engineering insulator string by the insulator string installation structure.

[0007] Preferably, the electric power engineering insulator string is a suspension insulator string and a strain insulator string.

[0008] Preferably, the installation height of the insulator string (1) is 3 meters from the ground.

[0009] Preferably, the insulator string installation structure comprises a ball head hanging ring (2), a U-shaped hanging plate (3), a flat steel hanging point (4), a channel steel upper cross arm (5), a bowl head hanging plate (7), a galvanized flat steel (8), a channel steel lower cross arm (9) and an outgoing line framework (10).

[0010] On the side of the outgoing line framework (10), the channel steel upper cross arm (5) and the channel steel lower cross arm (9) are fixed in parallel, the insulator string is vertically arranged, the upper part of the insulator string is hung on the flat steel hanging point (4) through the ball head hanging ring (2) and the U-shaped hanging plate (3), the flat steel hanging point (4) is welded below the channel steel upper cross arm (5), and the lower part of the insulator string is fixed on the upper surface of the channel steel lower cross arm (9) through the bowl-shaped hanging plate (7) and the galvanized flat steel (8).

[0011] Preferably, the channel steel diagonal brace (6) is further included;

[0012] The channel steel diagonal brace (6) is obliquely arranged above the channel steel upper cross arm (5), and two ends are welded and fixed with the channel steel upper cross arm (5) and the outgoing line framework (10) respectively.

[0013] Preferably, the ball head hanging ring (2) and the U-shaped hanging plate (3) are connected through bolts, and the U-shaped hanging plate (3) and the flat steel hanging point (4) are connected through bolts.

[0014] Preferably, the bowl-shaped hanging plate (7) and the galvanized flat steel (8) are connected through bolts.

[0015] Preferably, the channel steel upper cross arm (5) and the outgoing line framework (10) are welded, and the channel steel lower cross arm (9) and the outgoing line framework (10) are welded.

[0016] The zero-hanging insulator string installation structure provided by the utility model has the following advantages:

[0017] (1) The installation structure can be arranged in combination with existing facilities such as outgoing line frameworks, equipment supports, wall surfaces and lamp poles, or can be installed on special-purpose frameworks, and is convenient for sampling, simple in structure, easy to install and economical and practical; (2) According to the types of the insulator strings of the power engineering, a plurality of groups of corresponding types of zero-hanging insulator strings can be installed, so that the sampling requirements of the suspension insulator strings and the strain insulator strings of the live conductors in all scenes of the power system can be met. Therefore, the installation structure can be widely used in power substation, switch station, converter station and outgoing line field engineering, and has good popularization and application value. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The utility model provides a kind of zero-hanging insulator string installation structure of not power sampling for the front view of the utility model;

[0019] Figure 2 The utility model provides a kind of zero-hanging insulator string installation structure of not power sampling for the side view of the utility model;

[0020] MARKING DESCRIPTION:

[0021] 1-insulator string; 2-ball head hanging ring; 3-U-shaped hanging plate; 4-flat steel hanging point; 5-slotted steel upper cross arm; 6-slotted steel diagonal brace; 7-bowl head hanging plate; 8-galvanized flat steel; 9-slotted steel lower cross arm; 10-outlet frame. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0023] The utility model provides a kind of sampling zero hanging insulator string installation structure without power outage, can be flexibly installed on the existing facilities such as outlet frame, equipment support, wall surface, lamp pole etc. in substation, switch station, converter station, outlet field etc. according to engineering needs, and installation height can be freely adjusted according to operation and maintenance; by selecting the same zero hanging insulator string as live main circuit suspension insulator string and strain insulator string, therefore, it is convenient to sample insulator string, and then obtain the pollution flashover, aging data of insulator string, and since the environment of zero hanging insulator string and live main circuit suspension insulator string and strain insulator string is same, the pollution flashover, aging data of both are basically same, so the pollution flashover, aging data of insulator string can be analogized to suspension insulator string and strain insulator string arranged in the same area, to determine its operation and maintenance, overhaul plan.

[0024] In combination Figure 1 With Figure 2 The utility model provides a kind of sampling zero hanging insulator string installation structure without power outage, including insulator string 1 and insulator string installation structure;The insulator string 1 uses the same insulator string type of power engineering and does not hang the zero hanging insulator string of live conductor;The number of insulators included in insulator string 1 is flexibly set according to actual demand, and can be less than the number of insulators included in power engineering insulator string;The insulator string 1 is installed at the position of easy sampling observation height below the power engineering insulator string by the insulator string installation structure, for example, the installation height of insulator string 1 is 3 meters from ground;Power engineering insulator string can be suspension insulator string and strain insulator string.

[0025] In actual application, for the convenience of the installation of insulator string 1, the utility model example provides an insulator string installation structure, including ball head hanging ring 2, U-shaped hanging plate 3, flat steel hanging point 4, slotted steel upper cross arm 5, bowl head hanging plate 7, galvanized flat steel 8, slotted steel lower cross arm 9 and outlet frame 10;

[0026] On the side of the outgoing line framework 10, the channel steel upper cross arm 5 and the channel steel lower cross arm 9 are fixed in parallel; wherein the channel steel upper cross arm 5 and the outgoing line framework 10 are welded; the channel steel lower cross arm 9 and the outgoing line framework 10 are welded.

[0027] The insulator string is vertically arranged, the upper part of the insulator string is hung on the flat steel hanging point 4 through the ball head hanging ring 2 and the U-shaped hanging plate 3; the flat steel hanging point 4 is welded below the channel steel upper cross arm 5; the lower part of the insulator string is fixed on the upper surface of the channel steel lower cross arm 9 through the bowl-shaped hanging plate 7 and the galvanized flat steel 8. It also includes a channel steel diagonal brace 6; the channel steel diagonal brace 6 is obliquely arranged above the channel steel upper cross arm 5, and the two ends are welded and fixed with the channel steel upper cross arm 5 and the outgoing line framework 10 respectively.

[0028] Further, for the convenience of assembly, the ball head hanging ring 2 and the U-shaped hanging plate 3, the U-shaped hanging plate 3 and the flat steel hanging point 4 are connected by bolts. The bowl-shaped hanging plate 7 and the galvanized flat steel 8 are connected by bolts.

[0029] Therefore, combined with the existing facilities such as power engineering outgoing line framework, equipment support, wall surface, lamp pole, etc., at a height of about 3 meters from the ground which neither affects normal operation and maintenance nor facilitates sampling observation, the same zero hanging insulator string without connecting live conductor as the suspension insulator and the strain insulator is arranged, through sampling the zero hanging insulator string, according to its health condition, the suspension insulator and the strain insulator located at high place, connecting conductor live, inconvenient for sampling observation are analogized, so as to realize the non-power-off operation and maintenance of the suspension insulator and the strain insulator.

[0030] An embodiment will be introduced below:

[0031] A large pumped storage power station project, 4 units of 300MW generating motor units are installed, the ground outgoing line field is arranged on the same platform with the switch building, and the outgoing line field is respectively provided with 6 groups of suspension insulator strings and 6 groups of strain insulator strings.

[0032] The non-power-off sampling zero hanging insulator string installation structure comprises: an insulator string 1, a ball head hanging ring 2, a U-shaped hanging plate 3, a flat steel hanging point 4, a channel steel upper cross arm 5, a channel steel diagonal brace 6, a bowl head hanging plate 7, a galvanized flat steel 8, a channel steel lower cross arm 9, and an outgoing line framework 10.

[0033] The insulator string 1 is composed of M insulators, M is a natural number greater than 1, the upper part is hung on the flat steel hanging point 4 through the ball head hanging ring 2 and the U-shaped hanging plate 3; the ball head hanging ring 2, the U-shaped hanging plate 3 and the flat steel hanging point 4 are connected through bolts; the flat steel hanging point 4 is reliably welded below the channel steel upper cross arm 5; in order to ensure that the channel steel upper cross arm 5 is fixed firmly, the channel steel diagonal brace 6 is used to reliably fix the channel steel upper cross arm 5 on the outgoing line framework 10; the channel steel upper cross arm 5, the channel steel diagonal brace 6 and the outgoing line framework 10 are reliably connected in a welding manner; the lower part of the insulator string 1 is fixed on the channel steel lower cross arm 9 through the bowl-shaped hanging plate 7 and the galvanized flat steel 8 to prevent the insulator string from swinging; the channel steel lower cross arm 9 is reliably welded and fixed on the outgoing line framework 10.

[0034] By adopting the above technical scheme disclosed by the utility model, the following beneficial effects are obtained:

[0035] (1) The installation structure can be arranged in combination with existing facilities such as outgoing line frameworks, equipment supports, walls and lamp poles, or can be installed on special frameworks, and is convenient, simple in structure, easy to install and economical and practical; (2) According to the types of the insulator string of the power engineering, a plurality of groups of corresponding types of zero-hanging insulator strings can be installed, and the sampling demand of the suspension insulator string and the strain insulator string of the live conductor under all scenes of the power system can be met. Therefore, the installation structure can be widely used in power substation, switch station, converter station, outgoing line field and other engineering, and has good popularization and application value.

[0036] The above is only the preferred embodiment of the utility model, and it should be pointed out that for ordinary skilled persons in the technical field, some improvements and refinements can be made without departing from the principle of the utility model, and these improvements and refinements should be regarded as the protection scope of the utility model.

Claims

1. A non-disruptive sampling zero-hanging insulator string installation structure, characterized in that, It includes an insulator string (1) and an insulator string installation structure; the insulator string (1) is a zero-hanging insulator string that is not connected to a live conductor and is the same type as the power engineering insulator string; the insulator string (1) is installed at a height that is easy to sample and observe below the power engineering insulator string through the insulator string installation structure.

2. The installation structure for a zero-load sampling insulator string according to claim 1, characterized in that, The insulator strings used in power engineering are suspension insulator strings and tension insulator strings.

3. The installation structure for a zero-load sampling insulator string according to claim 1, characterized in that, The insulator string (1) is installed at a height of 3 meters above the ground.

4. The installation structure for a zero-load sampling insulator string according to claim 1, characterized in that, The insulator string installation structure includes a ball head hanging ring (2), a U-shaped hanging plate (3), a flat steel hanging point (4), a channel steel upper crossarm (5), a bowl head hanging plate (7), galvanized flat steel (8), a channel steel lower crossarm (9), and a line-out frame (10). On the side of the outgoing frame (10), the upper crossarm (5) and the lower crossarm (9) of the channel steel are fixed in parallel; the insulator string is set vertically, and the upper part of the insulator string is suspended on the flat steel hanging point (4) by the ball head hanging ring (2) and the U-shaped hanging plate (3); the flat steel hanging point (4) is welded to the lower part of the upper crossarm (5) of the channel steel; the lower part of the insulator string is fixed on the lower crossarm (9) of the channel steel by the bowl-shaped hanging plate (7) and the galvanized flat steel (8).

5. The installation structure for a zero-load sampling insulator string according to claim 4, characterized in that, It also includes channel steel diagonal bracing (6); The channel steel diagonal brace (6) is inclinedly arranged above the channel steel upper crossarm (5), and its two ends are welded and fixed to the channel steel upper crossarm (5) and the outgoing line frame (10) respectively.

6. The installation structure for a zero-load sampling insulator string according to claim 4, characterized in that, The ball head hanging ring (2) and the U-shaped hanging plate (3) are connected by bolts, as are the U-shaped hanging plate (3) and the flat steel hanging point (4).

7. The installation structure for a zero-load sampling insulator string according to claim 4, characterized in that, The bowl-shaped hanging plate (7) and the galvanized flat steel (8) are connected by bolts.

8. The installation structure for a zero-load sampling insulator string according to claim 4, characterized in that, The upper crossarm (5) of the channel steel and the outlet frame (10) are welded together; the lower crossarm (9) of the channel steel and the outlet frame (10) are welded together.

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