CN211237740U

CN211237740U - Inclined rod bolt structure for material changing cover

Info

Publication number: CN211237740U
Application number: CN201922025905.5U
Authority: CN
Inventors: 蔡如桦; 胡锦文; 贺梦豪; 李天鹞; 周跃; 彭晓钧; 刘婷; 刘禹希
Original assignee: 719th Research Institute of CSIC
Current assignee: 719th Research Institute of CSIC
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-08-11
Anticipated expiration: 2029-11-21

Abstract

The utility model relates to an inclined rod bolt structure for reloading cover, it includes container body and reloading cover, be equipped with the reloading mouth on the container body, the reloading cover is used for covering on the reloading mouth, the border department of reloading mouth is equipped with the connecting piece, the connecting piece is opened has first mounting hole, become the acute angle between the axial of first mounting hole and the axial of reloading mouth; the material changing cover is characterized in that a second mounting hole is formed in the edge of the material changing cover, the position of the second mounting hole corresponds to that of the first mounting hole, the axial direction of the second mounting hole coincides with that of the first mounting hole, and the first mounting hole is connected with the second mounting hole through a bolt. The utility model discloses the structure can make the container body and be connected between the reloading lid inseparabler, has guaranteed that this internal gas of container is difficult for being leaked to improve the safety protection ability of container body, the specially adapted nuclear safety device.

Description

Inclined rod bolt structure for material changing cover

Technical Field

The utility model relates to a connection structure among the nuclear safety device specifically indicates a down tube bolt structure for reloading lid.

Background

In order to meet the material changing requirement of a marine reactor, a material changing port needs to be arranged at the top of a container body, a material changing cover can be installed on the material changing port under the condition of no material changing, the existing material changing cover seals the material changing port through bolt pre-tightening, and the axial direction of the bolt is parallel to the axial direction of the material changing port, so that the container body is sealed; when the pipeline inside the container body breaks open, the pressure inside the container body can be increased and acts on the material changing cover, and partial bolt pretightening force can be offset at the moment, so that the material changing cover and the container body are not tightly connected, and gas leakage in the container body is caused.

Disclosure of Invention

The utility model aims to overcome above-mentioned prior art not enough and provide a down tube bolt structure for reloading lid, through this structure, can make the container body and be connected between the reloading lid inseparabler, guaranteed that this internal gas of container is difficult for being leaked to improve the safety protection ability of container body.

The technical scheme adopted for realizing the purpose of the utility model is an inclined rod bolt structure for a material changing cover, which comprises a container body and the material changing cover, wherein the container body is provided with a material changing port, the material changing cover is used for covering the material changing port, a connecting piece is arranged at the edge of the material changing port, the connecting piece is provided with a first mounting hole, and an acute angle is formed between the axial direction of the first mounting hole and the axial direction of the material changing port; the material changing cover is characterized in that a second mounting hole is formed in the edge of the material changing cover, the position of the second mounting hole corresponds to that of the first mounting hole, the axial direction of the second mounting hole coincides with that of the first mounting hole, and the first mounting hole is connected with the second mounting hole through a bolt.

In the above technical scheme, the connecting member is an integral flange formed by a flange pipe and a flange plate, and the first mounting hole is formed in the flange plate.

Furthermore, the edge of the material changing cover is an extending part which extends outwards, the second mounting hole is formed in the extending part, the position of the second mounting hole corresponds to the position of the first mounting hole, and the axial direction of the second mounting hole is overlapped with the axial direction of the first mounting hole.

In the above technical solution, a sealing ring is arranged at a connection position between the flange plate and the extending portion.

In the above technical scheme, the material changing cover is spherical.

The utility model discloses a to set the axial of the first mounting hole of installation into with the reloading lid and become acute angle with the axial of reloading mouth, thereby can make the interior pressure that uses on the connecting piece along the first hole axial of reloading mouthful axial direction decompose for along the axial power of the first hole of perpendicular to, when the inside powerful interior pressure of vessel body is used on the connecting piece through the reloading lid, can reduce along the axial effort of first mounting hole, the oblique bolt axial atress has been reduced promptly, make the reloading lid tighter with being connected of connecting piece, guaranteed that this internal gas of vessel is difficult to be leaked, the specially adapted nuclear safety device.

Drawings

Fig. 1 is a schematic structural view of the material changing cover of the utility model on the material changing port.

Fig. 2 is a schematic sectional view taken along line a-a of fig. 1.

Fig. 3 is an enlarged schematic view of the right end junction of fig. 2.

Reference numbers in the figures: 1-material changing port, 2-material changing cover, 21-second mounting hole, 3-connecting piece, 31-first mounting hole, 33-flange pipe, 34-flange plate and 4-bolt.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific embodiments.

As shown in fig. 1 to 3, the embodiment provides an inclined rod bolt structure for a material changing cover, which includes a sealed container body and a material changing cover 2, wherein the container body is provided with a material changing port 1, the material changing cover 2 is used for covering the material changing port 1, and a plurality of connecting pieces 3 are arranged at the edge of the material changing port; the connecting piece 3 is provided with a first mounting hole 31, and an acute angle is formed between the axial direction of the first mounting hole 31 and the axial direction of the material changing port; the edge of the material changing cover 2 is provided with a plurality of second mounting holes 21, the positions of the second mounting holes 21 correspond to the positions of the first mounting holes 31, the axial direction of the second mounting holes 21 is overlapped with the axial direction of the first mounting holes 31, and the first mounting holes 31 are connected with the second mounting holes 21 through bolts 4.

The utility model discloses a set the axial of the first mounting hole 31 of being connected with the reloading lid 2 into with the axial acutangular angle of reloading mouth 1, can make to use 3 connecting pieces along the resultant force decomposition of 1 axis direction of reloading mouth for along the first mounting hole 31 axial of first mounting hole and the first mounting hole 31 axial power of perpendicular to, thereby when the inside powerful interior pressure of vessel body is used 3 connecting pieces through the reloading lid 2, the axial effort along first mounting hole 31 has been reduced, bolt 4's axial force has been reduced promptly, make reloading lid 2 tighter with being connected of connecting pieces 3, the internal gas of vessel has been guaranteed to be difficult for being leaked.

The utility model discloses the zonulae occludens of reloading lid 2 and connecting piece 3 can be guaranteed to the structure, improves the safe sealing performance of vessel, and can also be equipped with the sealing washer between reloading lid 2 and connecting piece 3, can increase the sealing performance between reloading lid 2 and connecting piece 3, reduces this internal gaseous external exposure possibility of vessel. In addition, the material changing cover 2 is arranged to be spherical, and has larger pressure bearing capacity than a plane cover.

As a preferred embodiment of the present invention, the connecting member 3 is an integral flange formed by a flange pipe 33 and a flange plate 34, and the first mounting hole 31 is opened on the flange plate 34; further preferably, the edge of the refueling cover 2 may be designed with a plurality of extending portions extending outward, the second mounting holes 21 are opened on the extending portions, and the positions of the second mounting holes 21 on the extending portions correspond to the positions of the first mounting holes 31 on the flange 34, and the axial directions of the first mounting holes and the second mounting holes are overlapped. And bolts 4 pass through the first mounting holes 31 and the second mounting holes 21 to connect the flange plate and the extension portion together, thereby connecting the material changing cover 2 with the vessel body. The connecting piece 3 in the preferred embodiment adopts an integral flange, can adapt to higher pressure generated when a pipeline in the container body is subjected to a breach accident, and ensures the sealing performance of the material changing port 1.

Claims

1. The utility model provides a down tube bolt structure for reloading lid, includes vessel and reloading lid, the last material changing mouth that is equipped with of vessel, the reloading lid is used for the lid to be in on the material changing mouth, its characterized in that: a connecting piece is arranged at the edge of the material changing port, a first mounting hole is formed in the connecting piece, and an acute angle is formed between the axial direction of the first mounting hole and the axial direction of the material changing port; the material changing cover is characterized in that a second mounting hole is formed in the edge of the material changing cover, the position of the second mounting hole corresponds to that of the first mounting hole, the axial direction of the second mounting hole coincides with that of the first mounting hole, and the first mounting hole is connected with the second mounting hole through a bolt.

2. The lifter bolt structure for a refill cover according to claim 1, wherein: the connecting piece is an integral flange formed by a flange pipe and a flange plate, and the first mounting hole is formed in the flange plate.

3. The lifter bolt structure for the refill cover according to claim 2, wherein: the edge of the material changing cover is an extending part extending outwards, and the second mounting hole is formed in the extending part.

4. The lifter bolt structure for the refill cover according to claim 3, wherein: and a sealing ring is arranged at the joint between the flange plate and the extending part.

5. The lifter bolt structure for the refill cover according to claim 4, wherein: the reloading cover is spherical.