CN217784612U

CN217784612U - Steel vacuum insulation pipeline

Info

Publication number: CN217784612U
Application number: CN202220950093.4U
Authority: CN
Inventors: 孙文达; 孙庆国; 荆希峰
Original assignee: Zibo Innovation Energy Technology Co ltd
Current assignee: Zibo Innovation Energy Technology Co ltd
Priority date: 2022-04-24
Filing date: 2022-04-24
Publication date: 2022-11-11
Anticipated expiration: 2032-04-24

Abstract

The utility model discloses a steel vacuum insulation pipeline, belong to pipeline technical field, the fixed cover of inner wall of outer tube has connected the inner tube, the material of outer tube and inner tube is made for the metal material that is difficult for volatilizing such as steel, surround the vacuum area between the surface of inner tube and the inner wall of outer tube, the fixed surface of inner tube is connected with support piece, support piece's one end is even with the inner wall contact of outer tube, this steel vacuum insulation pipeline need not insulation material, only the outer tube through setting up, adapter sleeve and evacuation pipeline, make and form the vacuum area between the interior outer pipeline, can promote the safety economy and the life of high low temperature pipeline at home and abroad, this technique application scope is wide, be convenient for installing additional of original pipeline, and energy-conserving effectual, maintain simply, long service life, still practice thrift the ore resources of making insulation material simultaneously, reduce the energy consumption of insulation material production process, accord with the energy saving and emission reduction's that the country advocated greatly policy requirement.

Description

Steel vacuum insulation pipeline

Technical Field

The utility model relates to the technical field of pipelines, more specifically say, relate to a steel vacuum insulation pipeline.

Background

At present, all domestic indoor and outdoor steam or other pipelines for conveying high-temperature or low-temperature gas and fluid are insulated in a mode that heat insulation materials are wrapped outside the pipelines, and due to the reasons of construction quality and external environment, heat insulation gaps are often formed in the heat insulation materials, the environment can cause heat insulation falling, heat insulation water inflow and other problems, so that the conveying energy loss of the pipelines is increased, and the daily maintenance and repair cost is increased.

In view of the above problems, we have designed a steel vacuum insulation pipeline, and this scheme utilizes the thermal-insulated nature of vacuum, still utilizes original pipeline, removes insulation material and heat preservation outer packaging material, changes with the outer pipeline of the same or different materials, makes and forms the vacuum between interior outer pipeline, has accomplished high low temperature pipeline's safe economy and life's promotion by a wide margin.

SUMMERY OF THE UTILITY MODEL

Problem to exist among the prior art, the utility model aims to provide a steel vacuum insulation pipeline, this steel vacuum insulation pipeline need not insulation material, just through the outer tube that sets up, adapter sleeve and evacuation pipeline, make and form the vacuum area between the interior outer tube, can promote domestic and foreign high and low temperature pipeline's safe economy and life, this technique application scope is wide, be convenient for install additional of original pipeline, and energy-conservation effectual, the maintenance is simple, long service life, still practice thrift the ore resources who makes insulation material simultaneously, reduce the energy consumption of insulation material production process, accord with the energy saving and emission reduction's that the country advocated energetically policy requirement.

In order to solve the above problems, the utility model adopts the following technical proposal.

The utility model provides a steel vacuum insulation pipeline, includes the outer tube, the inner wall of outer tube is fixed to cup joint the inner tube, the material of outer tube and inner tube is made for the metal material that is difficult for volatilizing such as steel, surround the vacuum area between the surface of inner tube and the inner wall of outer tube, the fixed surface of inner tube is connected with support piece, support piece's one end links with the inner wall contact of outer tube, the central point of inner tube puts and has seted up the tube hole, and is adjacent the junction is fixed to cup joint the adapter sleeve between the outer tube, adapter sleeve's fixed surface is connected with the evacuation pipeline, the fixed surface that the evacuation pipeline has vacuum primary valve and vacuum secondary valve respectively, outer tube and adapter sleeve's surface all is equipped with the expansion joint, and this steel vacuum insulation pipeline need not insulation material, just through outer tube, adapter sleeve and the evacuation pipeline that sets up for form the vacuum area between the inner and outer pipeline, can promote the safety economy and the life of high and low temperature pipeline at home and abroad, this technology application scope is wide, and the original pipeline of being convenient for energy-saving effect is good, maintains simply, long service life, still practices thrift resources, reduces the energy consumption of the ore of manufacturing insulation material simultaneously and advocates the policy, and promotes the national emission reduction of energy-saving and emission reduction.

Furthermore, support piece's shape is the V font, support piece's one end is equipped with down the arc end, support piece's the other end is equipped with the arc end, it is the same with the radian size of arc end down to go up the arc end, goes up the arc end and can reduce support piece and be connected with the contact of inner tube and outer tube with lower arc end, has reduced the heat conduction effect.

Furthermore, positioning groove has been seted up on the surface of inner tube, positioning groove's shape is the arc, positioning groove's inner wall and the fixed surface connection of arc end down, positioning groove not only can reduce with the area of contact of arc end down, improved support piece's packaging efficiency moreover.

Furthermore, the support member is made of a metal or nonmetal material which is not easy to volatilize, has certain strength and poor heat conduction performance, is distributed in a linear, annular or network point mode, and can prevent the surfaces of the inner pipe and the outer pipe from being attached to each other due to vacuum pumping.

Furthermore, a sleeve hole is formed in the center of the connecting sleeve, the inner diameter of the sleeve hole is larger than the outer diameter of the outer pipe, and the connecting sleeve is convenient for splicing and fixing adjacent pipelines.

Furthermore, the length of the inner pipe is greater than that of the outer pipe, and the inner pipe is longer than the outer pipe by a section to meet the construction space of pipeline welding.

Compared with the prior art, the utility model has the advantages of:

(1) This scheme need not insulation material, just through the outer tube that sets up, adapter sleeve and evacuation pipeline, make and form the vacuum area between the interior outer tube way, can promote domestic and foreign high low temperature pipeline's safe economy and life, this technical application wide range, the adding of the original pipeline of being convenient for installs, and energy-conserving effectual, maintain simply, long service life, still practice thrift the ore resources who makes insulation material simultaneously, reduce the energy consumption of insulation material production process, accord with the energy saving and emission reduction's that the country advocated energetically policy requirement.

(2) Support piece's shape is the V font, and support piece's one end is equipped with down the arc end, and support piece's the other end is equipped with the arc end, goes up the arc end and the radian size of arc end is the same down, goes up the arc end and can reduce support piece and be connected with the contact of inner tube and outer tube with lower arc end, has reduced the heat conduction effect.

(3) Positioning groove has been seted up on the surface of inner tube, and positioning groove's shape is the arc, and positioning groove's inner wall and the fixed surface of arc end down are connected, and positioning groove not only can reduce with the area of contact of arc end down, has improved support piece's packaging efficiency moreover.

(4) The support piece is made of metal or nonmetal materials which are not easy to volatilize, have certain strength and poor heat conduction performance, is distributed in a linear, annular or network point mode, and can avoid the phenomenon that the surfaces of the inner pipe and the outer pipe are attached to each other due to vacuumizing.

(5) The central position of adapter sleeve has seted up the trepanning, and the internal diameter of trepanning is greater than the external diameter of outer tube, and adapter sleeve is convenient for splice fixedly between the adjacent pipeline.

(6) The length of inner tube is greater than the length of outer tube, and the inner tube is longer than the outer tube by one section can satisfy pipeline welded construction space.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a front view of the structure of the supporting member of the present invention;

fig. 3 is a side view of the inner tube structure of the present invention.

The reference numbers in the figures illustrate:

the vacuum expansion joint comprises an outer pipe 1, a support 2, an upper arc end 21, a lower arc end 22, an inner pipe 3, a positioning groove 31, pipe holes 32, a connecting sleeve 4, a sleeve hole 41, a primary vacuum valve 5, a secondary vacuum valve 6, a vacuum area 7, a vacuum pumping pipeline 8 and an expansion joint 9.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a steel vacuum insulation pipe, including an outer pipe 1, refer to fig. 1-3, an inner pipe 3 is fixedly sleeved on the inner wall of the outer pipe 1, the length of the inner pipe 3 is greater than that of the outer pipe 1, the inner pipe 3 is longer than the outer pipe 1 by a section to meet the construction space of pipe welding, the outer pipe 1 and the inner pipe 3 are made of metal materials which are not easy to volatilize, such as steel, a vacuum area 7 is enclosed between the surface of the inner pipe 3 and the inner wall of the outer pipe 1, the vacuum insulation pipe formed in this way can be used for conveying gas or liquid substances with the medium lower than 400 ℃, the pipe has good thermal insulation performance, is suitable for outdoor places with different climatic conditions, and has the advantages of less space occupation, safety and energy saving compared with the existing insulation conveying pipe, a support 2 is fixedly connected to the surface of the inner pipe 3, one end of the support 2 is in contact with the inner wall of the outer pipe 1, a pipe hole 32 is arranged at the center position of the inner pipe 3, a connecting sleeve 4 is fixedly connected to the surface of the connecting sleeve 4, a primary vacuum valve 5 and a secondary vacuum valve 6 are fixedly installed on the surface of the vacuum pipe, and a secondary vacuum expansion valve 9, the vacuum pipe can be matched with the existing vacuum pipe, and a secondary expansion valve 6 is arranged to perform vacuum extraction technology to perform on the vacuum extraction pipe, and a secondary expansion pipe to perform on-site, and a vacuum extraction pipe to perform on-site.

Referring to fig. 2 and 3, the shape of the supporting member 2 is V-shaped, a lower arc end 22 is disposed at one end of the supporting member 2, an upper arc end 21 is disposed at the other end of the supporting member 2, the radian sizes of the upper arc end 21 and the lower arc end 22 are the same, the upper arc end 21 and the lower arc end 22 can reduce the contact connection between the supporting member 2 and the inner tube 3 and the outer tube 1, so that the heat conduction effect is reduced, a positioning groove 31 is formed in the surface of the inner tube 3, the positioning groove 31 is arc-shaped, the inner wall of the positioning groove 31 is fixedly connected with the surface of the lower arc end 22, the positioning groove 31 can reduce the contact area with the lower arc end 22, and the assembly efficiency of the supporting member 2 is improved.

Referring to fig. 1 and 2, the supporting member 2 is made of a non-volatile metal or non-metal material with a certain strength and poor heat conductivity, the supporting member 2 is distributed in a linear, annular or network dot type, the supporting member 2 can prevent the surfaces of the inner tube 3 and the outer tube 1 from being attached to each other due to vacuum pumping, a sleeve hole 41 is formed in the center of the connecting sleeve 4, the inner diameter of the sleeve hole 41 is larger than the outer diameter of the outer tube 1, and the connecting sleeve 4 is convenient for splicing and fixing adjacent pipelines.

The steel vacuum heat-insulation pipeline is characterized in that an inner pipe 3 of each end pipe head part is longer than an outer pipe 1 by one section to meet the construction space of pipeline welding when being manufactured, a connecting part formed after two adjacent vacuum pipelines are welded is a single-layer pipeline, a connecting sleeve 4 which is longer than the outer pipe 1 in diameter is placed on the outer pipe 1 before the two pipelines are butted, the length of the connecting sleeve 4 is longer than the enough length of the middle single-layer pipeline, a vacuumizing pipeline 8 is pre-installed on the connecting sleeve 4, after the two vacuum pipelines are welded and connected to achieve pressure test, the connecting sleeve 4 which is placed in advance is symmetrically welded on the outer pipe of the vacuum pipe, vacuumizing is performed after test tightness, the vacuum heat insulation is unrelated with vacuum thickness, so that the inner diameter and the outer diameter of the vacuum pipeline can be very small in difference, the appearance size of the vacuum pipeline is obviously smaller than the size of the pipeline which is insulated by using heat-insulation materials, the heat-insulation performance of the pipeline is determined by the vacuum degree, the influence of the external environment is avoided, once the vacuum degree in the pipeline is reduced, the vacuum degree can be extracted and recovered at any time, so that the vacuum pipeline can maintain good heat-insulation effect, the original pipeline is also utilized by the original pipeline, the great removal of the pipeline, the high-temperature-saving and the economic requirements of the energy-saving and the environmental safety of the environmental-saving high-saving and emission-saving pipeline, and the environmental safety requirements of the energy-reducing environmental-saving environment-reducing environmental-saving high-saving environment-emission-reducing environmental-saving pipeline.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a steel vacuum insulation pipeline, includes outer tube (1), its characterized in that: the inner wall of outer tube (1) is fixed to have cup jointed inner tube (3), the material of outer tube (1) and inner tube (3) is made for the metal material that is difficult for volatilizing such as steel, surround between the surface of inner tube (3) and the inner wall of outer tube (1) and have vacuum area (7), the fixed surface of inner tube (3) is connected with support piece (2), the one end of support piece (2) links with the inner wall contact of outer tube (1), the central point of inner tube (3) puts and has seted up tube hole (32), and is adjacent connecting sleeve (4) have been fixed to have cup jointed to the junction between outer tube (1), the fixed surface of connecting sleeve (4) is connected with evacuation pipeline (8), the fixed surface difference fixed mounting of evacuation pipeline (8) has vacuum primary valve (5) and vacuum secondary valve (6), the surface of outer tube (1) and connecting sleeve (4) all is equipped with expansion joint (9).

2. The steel vacuum insulated pipe according to claim 1, characterized in that: the shape of support piece (2) is the V font, the one end of support piece (2) is equipped with down arc end (22), the other end of support piece (2) is equipped with arc end (21), it is the same with the radian size of arc end (22) down to go up arc end (21).

3. The steel vacuum insulated pipe according to claim 2, characterized in that: positioning groove (31) have been seted up on the surface of inner tube (3), positioning groove (31) shape is the arc, the inner wall of positioning groove (31) and the fixed surface connection of arc end (22) down.

4. The steel vacuum insulated pipe according to claim 1, characterized in that: the support piece (2) is made of a metal or nonmetal material which is not easy to volatilize, has certain strength and poor heat conduction performance, and the support piece (2) is distributed in a linear, annular or network point mode.

5. The steel vacuum insulated pipe according to claim 1, characterized in that: the central position of the connecting sleeve (4) is provided with a trepan boring (41), and the inner diameter of the trepan boring (41) is larger than the outer diameter of the outer pipe (1).

6. The steel vacuum insulated pipe according to claim 1, characterized in that: the length of the inner pipe (3) is larger than that of the outer pipe (1).