CN204986207U - Quick plugging device of transformer primary equipment pipeline staple bolt formula - Google Patents

Abstract

The utility model provides a quick plugging device of transformer primary equipment pipeline staple bolt formula, include and coil big or small assorted apron, the staple bolt of suit on mounting flange dish and apron with mounting flange, the apron is equipped with the sealing washer with the mounting flange dish, half on a left side, half inboard on the right side of staple bolt all are equipped with trapezoidal recess. The utility model discloses the shutoff is efficient, sealed effectual.

Description

A hoop-type rapid plugging device for pipelines of primary substation equipment

technical field

The utility model relates to the technical field of electric power system maintenance equipment, in particular to a hoop-type rapid sealing device for a pipeline of primary equipment for power transformation.

Background technique

The electrical equipment of the substation needs to be maintained according to the period specified in the regulations. During the maintenance of the equipment, some maintenance work involves the use of water pipes or oil pipes. For example: water pipes are needed when washing primary substation equipment with water; oil pipes are required when oil treatment is performed on primary substation equipment. Regardless of whether the water pipe or the oil pipe is used, there is a problem of pipeline adjustment. According to the actual situation of the field work, the pipeline needs to be disconnected, and the disconnected pipeline needs to be reliably blocked. At present, the traditional plugging method is still adopted for the plugging of pipelines at the job site, that is, wedge-shaped wooden plugs are used to block the pipelines. The above traditional plugging method has the following problems that need to be solved urgently: 1. Time-consuming and labor-intensive and low plugging efficiency; 2. Unreliable sealing after plugging; 3. Water (oil) leakage due to unreliable plugging , not only pollute the working environment of the site, but also waste resources, unable to meet the requirements of safe and civilized construction on the job site.

Utility model content

The purpose of the utility model is to provide a hoop-type rapid sealing device with high sealing efficiency and good sealing effect for the pipeline of primary substation equipment.

The purpose is achieved through the following scheme: a fast plugging device for the pipeline of primary substation equipment, including a cover plate matching the size of the fixed flange plate, and a cover plate set on the fixed flange plate and the cover plate. For the hoop, the cover plate and the fixed flange are provided with sealing rings, and trapezoidal grooves are provided on the inner sides of the left half and the right half of the hoop.

One end of the left half piece and the right half piece of the hoop is connected by a shaft pin, and the other end is fixedly connected to the flange by bolts.

The outer peripheral side of the cover plate is a slope structure.

An annular groove is provided on the inner side of the cover plate.

The sealing ring is provided with an annular projection matching the annular groove.

When the utility model is in use, the sealing ring is stuck on the cover plate, the cover plate is covered on the fixed flange plate, the hoop is clamped on the cover plate and the fixed flange plate, the bolts are tightened, and the hoop is in the process of shrinking In the middle, the trapezoidal groove exerts a pressing effect on the cover plate and the fixed flange, so that the cover plate is tightly pressed on the fixed flange, which has a good sealing effect, and on the other hand, the clogging speed is fast. One end of the left half piece and the right half piece of the hoop is connected by a shaft pin, and the other end is fixed and fastened by bolts to the flange, which is convenient for quick connection; the outer peripheral side of the cover plate is a slope structure, which plays a guiding role. It is convenient for the trapezoidal groove to squeeze the cover plate on the fixed flange; the inner side of the cover plate is provided with an annular groove, and the sealing ring is provided with an annular protrusion matching the annular groove to prevent the sealing ring from being dislocated. Good sealing effect.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described:

Fig. 1 is a structural representation of the utility model;

Fig. 2 is a schematic diagram of the longitudinal section of the utility model.

detailed description

As shown in Figures 1 and 2, a hoop-type fast plugging device for primary substation equipment includes a cover plate 6 that matches the size of the fixed flange 4, and is set on the fixed flange 4 and the cover 6. The hoop 2 on the top, the cover plate 6 and the fixed flange 4 are provided with a sealing ring 5, and the inner sides of the left half and the right half of the hoop are provided with trapezoidal grooves 8.

One end of the left half piece and the right half piece of the hoop 2 is connected by a shaft pin 1, and the other end is fixedly connected by a bolt 3 to the flange plate and the cover plate.

The outer peripheral side of the cover plate is a slope structure 7 .

An annular groove is provided on the inner side of the cover plate.

The sealing ring is provided with an annular projection matching the annular groove.

When the utility model is in use, the sealing ring is clamped on the cover plate, the cover plate is covered on the fixed flange plate, the hoop is clamped on the cover plate and the fixed flange plate, the bolts are tightened, and the hoop is in the process of shrinking Among them, the trapezoidal groove exerts a pressing effect on the cover plate and the fixed flange, so that the cover plate is tightly pressed on the fixed flange, which has a good sealing effect, and on the other hand, the clogging speed is fast. One end of the left half piece and the right half piece of the hoop is connected by a shaft pin, and the other end is fixed and fastened by bolts to the flange, which is convenient for quick connection; the outer peripheral side of the cover plate is a slope structure, which plays a guiding role. It is convenient for the trapezoidal groove to squeeze the cover plate on the fixed flange; the inner side of the cover plate is provided with an annular groove, and the sealing ring is provided with an annular protrusion matching the annular groove to prevent the sealing ring from being dislocated. Good sealing effect.

Claims (5)

1. a power transformation primary equipment pipeline locking hood type fast plugging device, it is characterized in that: comprise the cover plate matched with fixed flange size, the anchor ear be sleeved on fixed flange and cover plate, described cover plate and fixed flange are provided with seal ring, are equipped with trapezoidal groove inside the left half of described anchor ear, right half.

2. power transformation primary equipment pipeline locking hood type fast plugging device as claimed in claim 1, is characterized in that: the left half of described anchor ear, one end of right half adopt pivot pin to connect, and the other end adopts bolt to position flange plate and is fastenedly connected.

3. power transformation primary equipment pipeline locking hood type fast plugging device as claimed in claim 1, is characterized in that: described cover plate outer circumferential side is ramp structure.

4. power transformation primary equipment pipeline locking hood type fast plugging device as claimed in claim 1, is characterized in that: be provided with annular groove inside described cover plate.

5. power transformation primary equipment pipeline locking hood type fast plugging device as claimed in claim 1, is characterized in that: described seal ring is provided with the annular lug matched with annular groove.