CN206099039U - Prevent transformer substation's lightning rod of charming appearance and behaviour vibration damage - Google Patents

Abstract

The utility model discloses a prevent transformer substation's lightning rod of charming appearance and behaviour vibration damage, the lightning rod needle body is connected through the bolt through double -deck flange, and the floor arranges between two flange boards that the outside cover of double -deck flange has the sleeve, the processing of being in the milk between sleeve and the flange, the utility model discloses the connecting device atress is equitable, and is more firm reliable, can effectively prevent lightning rod fatigue fracture, and the floor is arranged to surperficial without about the flange, is favorable to the construction and installation of bolt also to be favorable to the bolt that gathers, the outside grout of flange can be consolidated and connected and prevent the bolt corrosion.

Description

A Substation Lightning Rod Preventing Wind-Induced Vibration Damage

【Technical field】

The utility model belongs to the field of lightning rod design, in particular to a substation lightning rod for preventing wind-induced vibration damage.

【Background technique】

Lightning rod, also known as lightning protection rod, is widely used in power plants, substations and other places as a device to protect buildings or electrical equipment from lightning strikes. The principle of the lightning rod is to install a metal rod on the top of a tall building (or tower), connect a piece of metal buried in the ground with a metal wire, and use the tip of the metal rod to discharge, so that the electricity carried by the cloud layer and the electricity on the ground gradually neutralized so as not to cause an accident.

For substation lightning rods in areas with strong wind frequency such as Northwest China and North China, considering the strength and frequency of strong winds comprehensively, the lightning rods are in a swinging state for a long time, and metal fatigue is prone to occur. Ordinary flange connections are prone to breakage in this environment, and the breakage of the lightning rod in the substation may cause damage to other equipment and affect the normal operation of the substation.

Corrosion at the flange will weaken the connection strength and make the lightning rod structure more vulnerable to damage under fatigue load.

【Content of utility model】

The purpose of the utility model is to overcome the defects of the prior art, provide a substation lightning rod that prevents wind-induced vibration damage, reduce the possibility of fatigue and corrosion damage, and prolong the service life of the lightning rod.

In order to achieve the above object, the utility model adopts the following technical solutions:

A substation lightning rod for preventing wind-induced vibration damage, including a lightning rod body, the lightning rod body is connected to the needle base or the ground column through a double-layer flange, ribs are arranged between the flanges, and sleeves are sheathed outside the flange The sleeve, the grouting treatment is performed between the sleeve and the flange.

Further, the double-layer flanges are rigidly connected by bolts.

Further, the sleeve is slightly longer than the length of the double-layer flange.

The lightning rod of the substation of the utility model, the needle body of the lightning rod is connected with the needle base or the ground column through a double-layer flange, the force is reasonable, more solid and reliable, and can effectively prevent fatigue damage. The grouting treatment is carried out between the barrel and the flange, and the grouting connection section prevents the flange connection structure from directly contacting the air, which can effectively prevent corrosion damage. Simple structure, easy to use, can reduce the possibility of fatigue and corrosion damage, and prolong the service life of the lightning rod.

【Description of drawings】

Figure 1 is a schematic diagram of the double-layer flange connection structure

Fig. 2 is a structural schematic diagram of the non-grouting state of the lightning rod reinforcement connection device of the present invention

Figure 3 is a structural schematic diagram of the utility model lightning rod reinforcement connection device after grouting

In the figure: lightning rod needle body 1, needle base or ground wire post 2, flange plate 3, rib plate 4, bolt 5, sleeve 6, grout 7.

【detailed description】

In order to more clearly illustrate the technical means and creative features of the implementation of the utility model, the utility model will be further elaborated below in conjunction with the accompanying drawings.

See Figures 1 to 3 for a new connection device for a lightning rod. The lightning rod device includes a lightning rod needle body 1, a needle base or a ground wire post 2, and the lightning rod and the ground wire post are connected through a flange 3 and a bolt 5 , Ribs 4 are provided between the flanges 3, sleeves 6 are provided outside the flanges 3, and grouting 7 is performed between the sleeves 6 and the flanges 3.

The new connection device of the lightning rod includes the body of the lightning rod and the base of the needle or the ground wire post, the two are connected through a double-layer flange, and a grouting connection section is set outside the flange connection.

In the utility model, in the double-layer flange structure, the ribs are arranged between the two flanges, and there is no need to arrange ribs on the upper and lower flange surfaces, which is beneficial to the installation and construction of the bolts and also facilitates the dense distribution of the bolts. Such a connection structure bears reasonable force, is more solid and reliable, and can effectively prevent fatigue damage.

In the utility model, the grouting connection section is a sleeve that is slightly longer than the flange connection section on the outside of the flange connection, and grouting is performed between the sleeve and the flange, and the grouting connection section makes the flange connection structure It is not in direct contact with the air, which can effectively prevent corrosion damage.

When installing the lightning rod, first fix the base of the needle or the ground pole. Then set ribs 4 between the double-layer flanges 3, and rigidly connect the lightning rod 1 and the ground column 2 through the double-layer flanges 3 and bolts 5. Then a sleeve 6 is put on the outside of the connection of the flange 3 , and grout 7 is poured between the sleeve and the flange, so that the grout 7 wraps the entire connection structure of the flange 3 .

The above description of the embodiments is for those of ordinary skill in the technical field to understand and use the utility model. It is obvious that those skilled in the art can easily make various modifications to these embodiments, and apply the general principles described here to other embodiments without creative efforts. Therefore, the utility model is not limited to the above-mentioned embodiments, and improvements and modifications made by those skilled in the art according to the disclosure of the utility model without departing from the category of the utility model should be within the protection scope of the utility model.

Claims (3)

1. A substation lightning rod for preventing wind-induced vibration damage, characterized in that: it includes a lightning rod body (1), and the lightning rod body (1) is connected to the needle base or the ground column (2) through a double-layer flange (3) , ribs (4) are arranged between the flanges (3), and sleeves (6) are set on the outside of the flanges (3), and the sleeve (6) and the flange (3) are Grouting (7) treatment. 2. The substation lightning rod for preventing wind-induced vibration damage according to claim 1, characterized in that: the double-layer flanges (3) are rigidly connected by bolts (5). 3. The substation lightning rod for preventing wind-induced vibration damage according to claim 1, characterized in that: the sleeve (6) is slightly longer than the length of the double-layer flange (3).