阅读说明：本技术 一种多壁管道 (Multi-walled pipe ) 是由 王霞明 于 2020-07-07 设计创作，主要内容包括：本发明公开了一种多壁管道,包括：外管、内管、支撑环、止推环、外管检测口和内管检测口；在所述内管的外侧套设有支撑环；在所述内管套设在外管内,且通过支撑环支撑；在所述支撑环两侧的内管上分别套设有止推环,且止推环通过定位螺丝和螺帽固定；在所述止推环上端的支撑环上开设有孔槽；在所述外管的侧壁上设置外管检测口；在所述内管的侧壁上设置内管检测口。本装置结构简单,设计合理,操作便利,免维修,对外管没有损坏,安装方便,没有繁琐的安装和检查工作,制作成本低,便于推广。(The invention discloses a multi-walled tubing, comprising: the device comprises an outer pipe, an inner pipe, a support ring, a thrust ring, an outer pipe detection port and an inner pipe detection port; a support ring is sleeved on the outer side of the inner pipe; the inner pipe is sleeved in the outer pipe and is supported by the support ring; the inner pipes on the two sides of the support ring are respectively sleeved with thrust rings, and the thrust rings are fixed by positioning screws and nuts; a hole groove is formed in the support ring at the upper end of the thrust ring; an outer pipe detection port is formed in the side wall of the outer pipe; and an inner pipe detection port is arranged on the side wall of the inner pipe. This device simple structure, reasonable in design, convenient operation exempts from the maintenance, does not have the damage to the outer pipe, simple to operate does not have loaded down with trivial details installation and inspection work, and the cost of manufacture is low, facilitate promotion.)

1. A multi-walled pipe, comprising: the device comprises an outer pipe, an inner pipe, a support ring, a thrust ring, an outer pipe detection port and an inner pipe detection port; a support ring is sleeved on the outer side of the inner pipe; the inner pipe is sleeved in the outer pipe and supported by the support ring; the inner pipes on the two sides of the support ring are respectively sleeved with thrust rings, and the thrust rings are fixed by positioning screws and nuts; a hole groove is formed in the support ring at the upper end of the thrust ring; an outer pipe detection port is formed in the side wall of the outer pipe; and an inner pipe detection port is arranged on the side wall of the inner pipe.

2. The multi-walled tube of claim 1, wherein the support ring is made of a non-metallic material or a metallic material.

3. The multi-walled pipe of claim 2, wherein the support ring is made of polytetrafluoroethylene or stainless steel material.

4. The multi-walled pipe of claim 1, wherein the number of the holes is not less than one, and is opened as needed.

5. The multi-walled tube of claim 1, wherein there is no more than one outer tube test port and no more than one inner tube test port, and wherein the outer tube test ports and the inner tube test ports are mounted as desired.

6. The multi-walled pipe of claim 1, wherein the thrust ring, set screw, and nut are made of a stainless steel material.

7. The multi-walled pipe of claim 1, wherein the inner and outer tubes are each made of a metallic material.

8. The multi-walled pipe of claim 1, wherein the perforations are ventilation holes or ventilation slots.

Technical Field

The invention relates to the technical field of pipelines, in particular to a multi-wall pipeline.

Background

The existing double-wall pipeline is firstly supported by welding a metal plate, the metal plate is installed in the same direction as the pipeline and welded on an inner pipe, and if the double-wall pipeline is installed at the position of mechanical vibration, the outer pipe is abraded and damaged due to long-term accumulation. After each support welding, whether the welding position has defects or not is checked, and work and complicated inspection are added.

The second is pulley support, although welding is not needed and abrasion is not generated on the outer pipe, the structure is complex and inconvenient to install, a hoop is adopted to be installed on the inner pipe, then 4 or more supporting legs are installed on the hoop to facilitate installation of the pulleys).

Disclosure of Invention

It is an object of the present invention to provide a multi-walled tube.

In order to achieve the above object, the present invention employs the following:

a multi-walled pipe, comprising: the device comprises an outer pipe, an inner pipe, a support ring, a thrust ring, an outer pipe detection port and an inner pipe detection port; a support ring is sleeved on the outer side of the inner pipe; the inner pipe is sleeved in the outer pipe and supported by the support ring; the inner pipes on the two sides of the support ring are respectively sleeved with thrust rings, and the thrust rings are fixed by positioning screws and nuts; a hole groove is formed in the support ring at the upper end of the thrust ring; an outer pipe detection port is formed in the side wall of the outer pipe; and an inner pipe detection port is arranged on the side wall of the inner pipe.

Preferably, the support ring is made of a non-metallic material or a metallic material.

Preferably, the support ring is made of a teflon or stainless steel material.

Preferably, the number of the hole grooves is not less than one, and the hole grooves are formed according to requirements.

Preferably, the number of the outer tube detection port and the inner tube detection port is not less than one, and the outer tube detection port and the inner tube detection port are installed as required.

Preferably, the thrust ring, the set screw and the nut are all made of stainless steel materials.

Preferably, the inner pipe and the outer pipe are both made of a metal material.

Preferably, the hole groove is a vent hole or a vent groove.

The invention has the following advantages:

this device simple structure, reasonable in design, convenient operation exempts from the maintenance, does not have the damage to the outer pipe, simple to operate does not have loaded down with trivial details installation and inspection work, and the cost of manufacture is low, facilitate promotion.

Drawings

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Figure 1 is a schematic diagram of a multi-walled tube of the present invention.

In the figures, the various reference numbers are:

1-outer tube, 2-inner tube, 3-support ring, 4-thrust ring, 5-outer tube detection port, 6-inner tube detection port, 7-set screw, 8-nut, 9-hole groove.

Detailed Description

In order to more clearly illustrate the invention, the invention is further described below in connection with preferred embodiments. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.

As shown in fig. 1, a multi-walled tube comprises: the device comprises an outer pipe 1, an inner pipe 2, a support ring 3, a thrust ring 4, an outer pipe detection port 5 and an inner pipe detection port 6; the outer side of the inner pipe 2 is sleeved with a support ring 3, the inner pipe 2 is sleeved in the outer pipe and is supported by the support ring 3, and the support ring 3 is arranged to enable the inner pipe 2 to be permanently kept at the central position of the outer pipe 1 when the inner pipe is installed into the inner circle of the outer pipe 1; the inner pipes 2 on two sides of the support ring 3 are respectively sleeved with thrust rings 4, the thrust rings 4 are fixed and limited through positioning screws 7 and nuts 8, and meanwhile, the support ring 3 is limited; a hole groove 9 is formed in the support ring 3 at the upper end of the thrust ring 4; an outer tube detection port 5 is provided in the side wall of the outer tube 1, and an inner tube detection port 6 is provided in the side wall of the inner tube 2.

Further, the support ring 3 is made of a non-metal material, preferably polytetrafluoroethylene, or a metal material, preferably stainless steel.

Furthermore, the number of the hole grooves 9 is not less than one, and the hole grooves are formed as required.

Further, the number of the outer tube detection port 5 and the inner tube detection port 6 is not less than one, and the outer tube detection port and the inner tube detection port are installed as required.

Further, the thrust ring 4, the set screw 7 and the nut 8 are all made of stainless steel material.

Further, the inner tube 2 and the outer tube 1 are both made of a metal material.

Further, the hole groove 9 is an air vent or a vent groove, and the inner portion of the outer tube 1 is conveniently vacuumized by the hole groove 9.

The support ring 3 among this device is processed into circularly, and the excircle of support ring 3 is the same with 1 internal diameter of outer tube, and the interior circle of support ring 3 is processed into 2 excircles of inner tube, just can put into outer tube 1, and thrust collar 4 also processes into circularly, but will be less than support ring 3, how little the number that lies in leaving position processing hole groove 9, then install a plurality of set screws 7 and nut 8 on thrust collar 4, and quantity adjusts with the pipeline size, but is not less than 4, and the equal share installation of diagonal angle. The pipeline of the device is a whole, and one end of the device is provided with a vacuumizing machine, so that the gas in the whole pipeline can be vacuumized, and the gas in the pipeline can be communicated in the pipeline through the hole and the groove. The tail end of the device is welded on a pipeline through a semicircular pipe metal end socket, and the inner pipeline and the outer pipeline become a single pipeline at the moment.

It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.