CN217177894U

CN217177894U - End sealing device for steel-sheathed steel steam pipeline

Info

Publication number: CN217177894U
Application number: CN202220284550.0U
Authority: CN
Inventors: 和占林; 张瑞文; 曲志忠; 苏捷; 张景松; 谭军华; 王达; 张震; 刘肖善; 温永利
Original assignee: Huaneng Anyang Thermal Power Co ltd
Current assignee: Huaneng Anyang Thermal Power Co ltd
Priority date: 2022-02-13
Filing date: 2022-02-13
Publication date: 2022-08-12
Anticipated expiration: 2032-02-13

Abstract

Steel bushing steel steam conduit tip sealing device. The end seal of the corrugated pipe needs to be directly welded on the core pipe, the core pipe is extremely easy to damage, the production process of the end seal of the corrugated pipe is complex, the end seal of the corrugated pipe needs to be manufactured by professional manufacturers, the manufacturing cost of the end seal of the heat-insulating pipe is high, the service life of the end seal of the heat-insulating pipe is limited, and the end seal of the corrugated pipe cannot be installed and replaced in the running process. The utility model discloses the constitution includes: core pipe (2) and outer pillar (1), the pipe end and the welding of end shrouding (3) of outer pillar, gland (5) pressure be in the end shrouding on and with the end shrouding pass through the bolt fastening, the fender ring inner circle of end shrouding fill graphite packing (4). The utility model is used for steel bushing steel steam conduit end seal.

Description

End sealing device for steel-sheathed steel steam pipeline

Technical Field

The utility model relates to a steel bushing steel steam pipeline end sealing device.

Background

The steel-sheathed steel steam pipeline is directly buried and laid, and is widely applied to various industrial gathering areas in China because the municipal environmental appearance is not influenced. The steel sleeve steel pipe is arranged at the end part of an outer protecting pipe such as a valve and the inner part of a drainage well, and a corrugated pipe end seal is generally adopted to prevent water from entering.

The heat-insulation waterproof end seal is composed of a working pipe, a corrugated pipe, a heat-insulation layer, an outer protection pipe and a heat-insulation layer end face sealing ring plate, compensation amount of the end seal of the corrugated pipe is small, compensation amount and compensation direction are fixed values, and in the actual operation process of a pipeline, due to the fact that working conditions change, abnormal conditions such as tension crack and deformation are prone to occurring.

When the core pipe and the outer protecting pipe are not concentric, the end seal of the corrugated pipe is deformed and damaged, cannot compensate left and right, and cannot be maintained in operation. The end seal of the corrugated pipe needs to be directly welded on the core pipe, the core pipe is extremely easy to damage, the production process of the end seal of the corrugated pipe is complex, the end seal of the corrugated pipe needs to be manufactured by professional manufacturers, the manufacturing cost of the end seal of the heat-insulating pipe is high, the service life of the end seal of the heat-insulating pipe is limited, and the end seal of the corrugated pipe cannot be installed and replaced in the running process.

Disclosure of Invention

The utility model aims at providing a steel bushing steel steam conduit tip sealing device.

The above purpose is realized by the following technical scheme:

the end part of the outer protecting pipe is welded with an end sealing plate, a pressing cover is pressed on the end sealing plate and fixed with the end sealing plate through a bolt, and a baffle ring inner ring of the end sealing plate is filled with a graphite packing.

The end sealing device of the steel sleeve steel steam pipeline is characterized in that the gland is of a circular ring disc structure and is provided with an inner convex ring.

The end sealing device of the steel sleeve steel steam pipeline is characterized in that an inner convex ring of the gland is pressed on the graphite packing.

Has the advantages that:

1. the utility model discloses a graphite packing seals, and when core pipe and outer pillar took place the decentraction condition, compensation volume and compensation direction were unrestricted.

2. The utility model discloses a seal structure need not carry out welding operation on the core pipe, effectively protects core pipe safety.

3. The utility model discloses can be under construction and maintain in the operation, only need to change the packing can, use and low in maintenance cost are honest and clean.

Description of the drawings:

FIG. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a front view of the end closure plate;

FIG. 3 is a side view of the end closure plate;

FIG. 4 is a side view of the gland;

in the figure: 1. an outer protecting pipe; 2. a core tube; 3. an end sealing plate; 4. graphite packing; 5. a gland; 6. a high-strength bolt; 7. a baffle ring; 8. a circular hole; 9. an inner collar.

The specific implementation mode is as follows:

example 1:

the end part of the steel-sheathed-steel steam pipeline is welded with an end sealing plate 3, a gland 5 is pressed on the end sealing plate and fixed with the end sealing plate through a bolt, and an inner ring of a baffle ring 7 of the end sealing plate is filled with a graphite packing 4.

Example 2:

according to the steel sleeve steel steam pipeline end sealing device in the embodiment 1, the gland is of a circular ring disc structure and is provided with an inner convex ring 9.

Example 3:

according to the end sealing device of the steel-sheathed-steel steam pipeline in the embodiment 1 or 2, the inner ring of the gland is pressed on the graphite packing.

The working principle is as follows: the circumference welding has a plurality of high strength double-screw bolts 6 on the end shrouding, presses the gland on the end shrouding, and the double-screw bolt that excels in has the nut to realize the fixed of gland after passing 8 back threaded connection of round hole that correspond the position on the gland, and the interior protruding strip of gland pushes down graphite packing, seals through graphite packing and can guarantee sealed effect, need not carry out welding operation on the core pipe simultaneously, effectively protects core pipe safety.

Claims

1. The utility model provides a steel bushing steel steam conduit tip sealing device which characterized by: the pipe end of the outer protecting pipe is welded with an end sealing plate, a gland is pressed on the end sealing plate and fixed with the end sealing plate through a bolt, and a graphite packing is filled in an inner ring of a baffle ring of the end sealing plate.

2. The steel-sheathed-steel steam conduit end seal of claim 1, wherein: the gland is of a circular ring disc structure, and an inner convex ring is arranged on the gland.

3. The steel-sheathed-steel steam pipe end seal according to claim 2, characterized in that: the inner convex ring of the gland is pressed on the graphite packing.