CN213576000U

CN213576000U - Prefabricated direct-burried insulating tube

Info

Publication number: CN213576000U
Application number: CN202022579575.7U
Authority: CN
Inventors: 刘涛
Original assignee: Tianjin Qianfeng Corrosion Insulation Engineering Co ltd
Current assignee: Tianjin Qianfeng Corrosion Insulation Engineering Co ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-06-29
Anticipated expiration: 2030-11-10

Abstract

The utility model discloses a prefabricated direct-buried heat preservation pipe, which belongs to the technical field of heat preservation pipes and comprises an inner pipe body, a middle pipe body and an outer pipe body, wherein a cavity is arranged between the inner pipe body and the middle pipe body, heat preservation cotton is filled in the cavity, the outer side wall of the middle pipe body is fixedly connected with a support plate and is connected with the outer pipe body through the support plate, a vacuum cavity is arranged between the outer pipe body and the middle pipe body, the outer pipe body is connected with the middle pipe body through the support plate, the heat preservation pipe is connected with an exhaust pipe through vacuumizing equipment before being pre-buried, the inside of the vacuum cavity is subjected to air exhaust treatment through the vacuumizing equipment, a piston is closed after air exhaust, so that the inside of the vacuum cavity is in an environment close to vacuum, and in a vacuum-like environment between the middle pipe body and the outer pipe body, the medium for temperature, further improving the heat insulation performance of the heat insulation pipe.

Description

Prefabricated direct-burried insulating tube

Technical Field

The utility model relates to a thermal insulation pipe technical field especially relates to a prefabricated direct-burried thermal insulation pipe.

Background

The heat preservation pipe is a short name of a heat preservation pipeline, is used for conveying liquid, gas and other media, is used for heat preservation of heat insulation engineering of pipelines of petroleum, chemical engineering, aerospace, hot springs, military, central heating, central air conditioning, municipal administration and the like, and is widely applied in life.

Patent number is CN 207406934U's publication a prefabricated direct-burried insulating tube, the connection of adjacent insulating tube of can being convenient for effectively promotes the efficiency of construction, simultaneously, can strengthen the leakproofness of junction, avoids intraductal fluid to reveal, in addition, has effectively improved the heat insulating ability of junction.

The prefabricated direct-buried heat insulation pipe has the following defects that 1, the prefabricated direct-buried heat insulation pipe has general heat insulation performance, a pipe body is of a solid structure except a pipe cavity, the heat insulation performance is poor, and the use effect is influenced; 2. the traditional heat preservation pipe is usually directly coated with a heat preservation material on the outer wall of the tank body, and in the actual use process, after the heat preservation pipe is buried underground, the heat preservation pipe is influenced by a corrosion environment for a long time, the heat preservation material is easily decomposed, and the heat preservation effect is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a prefabricated direct-burried insulating tube aims at further improving the heat preservation effect of insulating tube, thereby avoids insulation material to be corroded by external environment influence heat preservation effect simultaneously.

The utility model provides a specific technical scheme as follows:

the utility model provides a pair of prefabricated direct-burried insulating tube, including inlayer body, middle body and outer body, the cavity has been seted up between inlayer body and the middle body, the inside packing of cavity has the heat preservation cotton, middle body lateral wall fixedly connected with backup pad is connected with outer body through the backup pad, the vacuum cavity has been seted up between outer body and the middle body, vacuum cavity top fixedly connected with extends to the outside exhaust tube of outer body, the exhaust tube top can be dismantled and be connected with the piston, the coating of outer body lateral wall has anticorrosive coating.

Optionally, the heat-insulating cotton is made of glass fiber cotton, and the anticorrosive coating is made of epoxy resin paint.

Optionally, a through hole is formed in the support plate, and the through hole penetrates through the support plate.

Optionally, a rubber ring is bonded to the inner side wall of the exhaust tube, and the rubber ring is located at the joint of the exhaust tube and the outer side wall of the piston.

The utility model has the advantages as follows:

1. the insulating tube main part comprises inlayer body, middle body and outer body, be connected through the backup pad between outer body and the middle body, the top of seting up vacuum cavity and vacuum cavity at its connection site is fixed with the exhaust tube, the insulating tube is before pre-buried, screw out the piston, adopt evacuation equipment to connect the exhaust tube, carry out the processing of bleeding to the vacuum cavity inside through evacuation equipment, closed piston after bleeding, make the inside environment that is close the vacuum that is in of vacuum cavity, bury the insulating tube, the class vacuum environment in the middle of body and the outer body, the medium of temperature transmission has been reduced, and then reduce the influence of external environment to the inside fluid temperature of insulating tube, the thermal insulation performance of insulating tube has further been improved.

2. The cavity has been seted up in the middle of inlayer body and middle body, the heat preservation cotton is directly filled in to the inside of cavity when production, and then arrange insulation material in the inside of insulating tube, avoid the external environment to cause the corruption to insulation material in the in-service use process, influence the condition of heat preservation effect, the heat preservation cotton material is glass fiber cotton, use glass ball or old and useless glass as the raw materials through the high temperature system of melting, the wire drawing, the winding, the manufacturing process such as weaving is an excellent performance's inorganic non-metallic material, good insulation, the heat resistance is strong, fill can play the effect of strengthening the heat preservation effect between inlayer body and middle body, reduce the influence of inside and outside temperature.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic cross-sectional structure view of a prefabricated direct-buried thermal insulation pipe according to an embodiment of the present invention;

fig. 2 is the external structure schematic diagram of the prefabricated direct-burried insulating tube of the embodiment of the utility model.

In the figure: 1. an inner pipe body; 2. a middle tube body; 3. an outer pipe body; 4. a cavity; 401. heat preservation cotton; 5. a vacuum chamber; 6. a support plate; 601. a through hole; 7. an air exhaust pipe; 701. a piston; 702. a rubber ring; 8. and (4) an anticorrosive coating.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, 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 efforts belong to the protection scope of the present invention.

A prefabricated direct-buried thermal insulation pipe according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 2.

Referring to fig. 1 and 2, the embodiment of the utility model provides a prefabricated direct-burried insulating tube, including inlayer body 1, middle body 2 and outer body 3, cavity 4 has been seted up between inlayer body 1 and the middle body 2, 4 inside packings of cavity have the cotton 401 that keeps warm, 2 lateral wall fixedly connected with backup pads 6 of middle body are connected with outer body 3 through backup pad 6, vacuum cavity 5 has been seted up between outer body 3 and the middle body 2, 5 top fixedly connected with of vacuum cavity extends to the outside exhaust tube 7 of outer body 3, 7 tops of exhaust tube can be dismantled and be connected with piston 701, 3 lateral wall coatings of outer body have anticorrosive coating 8.

The example, be connected through backup pad 6 between outer body 3 and the middle body 2, the insulating tube is before pre-buried, adopt evacuation equipment to connect exhaust tube 7, through evacuation equipment to the inside processing of bleeding of vacuum cavity 5, closed piston 701 after bleeding, make the inside environment that is close the vacuum that is in of vacuum cavity 5, the class vacuum environment in the middle of body 2 and outer body 3, the medium of temperature transmission has been reduced, and then reduce the influence of external environment to the inside fluid temperature of insulating tube, the thermal insulation performance of insulating tube has further been improved, the cotton 401 of heat preservation is directly filled in when production in the inside of cavity 4, and then place the inside of insulating material in the insulating tube, avoid external environment to lead to the fact the corruption to the insulating material in the in-service use, influence the condition of heat preservation effect.

Referring to fig. 1, a through hole 601 is formed in the support plate 6, and the through hole 601 penetrates through the support plate 6.

Illustratively, the through holes 601 formed in the support plate 6 facilitate the entire evacuation of the vacuum chamber 5 during evacuation.

Referring to fig. 1 and 2, a rubber ring 702 is adhered to the inner side wall of the exhaust tube 7, and the rubber ring 702 is located at the joint of the exhaust tube 7 and the outer side wall of the piston 701.

By way of example, the rubber ring 702 adhered to the inner wall of the exhaust tube 7 can improve the sealing performance between the piston 701 and the inner wall of the exhaust tube 7 after being screwed, and leakage can be reduced.

When in use, the main body of the heat preservation pipe comprises an inner layer pipe body 1, a middle pipe body 2 and an outer layer pipe body 3, the outer layer pipe body 3 is connected with the middle pipe body 2 through a support plate 6, a vacuum cavity 5 is arranged at the connecting part of the outer layer pipe body, an exhaust pipe 7 is fixed at the top of the vacuum cavity 5, the heat preservation pipe is screwed out of a piston 701 before being embedded, the exhaust pipe 7 is connected with a vacuumizing device, the inside of the vacuum cavity 5 is subjected to air exhaust treatment through the vacuumizing device, the piston 701 is closed after air exhaust, so that the inside of the vacuum cavity 5 is in an environment close to vacuum, the heat preservation pipe is embedded, a vacuum-like environment between the middle pipe body 2 and the outer layer pipe body 3 reduces a medium for temperature transmission, further reduces the influence of the external environment on the fluid temperature inside the heat preservation pipe, further improves the heat preservation performance of the heat preservation pipe, the vacuum cavity 5 can be conveniently integrally extracted during, the rubber ring 702 bonded on the inner wall of the exhaust pipe 7 can improve the sealing performance between the piston 701 screwed in and the inner wall of the exhaust pipe 7 and reduce leakage, the cavity 4 is formed between the inner layer pipe body 1 and the middle pipe body 2, the heat insulation cotton 401 is directly filled in the cavity 4 during production, and then the heat insulation material is arranged in the heat insulation pipe, so that the situation that the heat insulation effect is influenced by the corrosion of the external environment on the heat insulation material in the actual use process is avoided, the heat insulation cotton 401 is made of glass fiber cotton, and is manufactured by taking glass balls or waste glass as raw materials through processes of high-temperature melting, wire drawing, winding, weaving and the like, is an inorganic non-metallic material with excellent performance, has good insulation performance and strong heat resistance, can play a role in enhancing the heat insulation effect when being filled between the inner layer pipe body 1 and the middle pipe body 2, reduces the influence of the internal and external temperatures, and the outer wall of, the material is epoxy resin paint, has good corrosion resistance, and can play a protective role on the outer wall of the heat-insulating pipe.

It should be noted that the utility model relates to a prefabricated direct-burried insulating tube, including inlayer body 1, middle body 2, outer body 3, cavity 4, heat preservation cotton 401, vacuum cavity 5, backup pad 6, through-hole 601, exhaust tube 7, piston 701, rubber ring 702, anticorrosive coating 8, the part is general standard component or the part that technical staff in the field knows, and its structure and principle all are that this technical staff all can learn through the technical manual or learn through conventional experimental method.

It is apparent that those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides a prefabricated direct-burried insulating tube, includes inlayer body (1), middle body (2) and outer body (3), its characterized in that, cavity (4) have been seted up between inlayer body (1) and middle body (2), cavity (4) inside packing has heat preservation cotton (401), middle body (2) lateral wall fixedly connected with backup pad (6) are connected with outer body (3) through backup pad (6), vacuum cavity (5) have been seted up between outer body (3) and middle body (2), vacuum cavity (5) top fixedly connected with extends to outside exhaust tube (7) of outer body (3), exhaust tube (7) top can be dismantled and be connected with piston (701), the coating of outer body (3) lateral wall has anticorrosive coating (8).

2. The prefabricated direct-buried heat-insulating pipe as claimed in claim 1, wherein the heat-insulating cotton (401) is made of glass fiber cotton, and the anticorrosive coating (8) is made of epoxy resin paint.

3. The prefabricated direct-burial thermal insulation pipe as claimed in claim 1, wherein a through hole (601) is formed in the supporting plate (6), and the through hole (601) penetrates through the supporting plate (6).

4. The prefabricated direct-burial thermal insulation pipe as claimed in claim 1, wherein a rubber ring (702) is bonded to the inner side wall of the exhaust pipe (7), and the rubber ring (702) is located at the joint of the exhaust pipe (7) and the outer side wall of the piston (701).