CN213393931U

CN213393931U - Prefabricated insulating tube of multilayer that coefficient of heat conductivity is low

Info

Publication number: CN213393931U
Application number: CN202020900353.8U
Authority: CN
Inventors: 路健; 杨姣; 李平; 曹雄飞
Original assignee: Jiangsu Guosheng Pipe Industry Technology Co Ltd
Current assignee: Jiangsu Guosheng Pipe Industry Technology Co Ltd
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2021-06-08
Anticipated expiration: 2030-05-26

Abstract

The utility model discloses a prefabricated insulating tube of multilayer that coefficient of heat conductivity is low relates to the insulating tube field, and is not high for solving the thermal insulation coefficient of the current insulating tube among the prior art, and the staff mistake touches can cause personnel injured, the general problem of security. The inside of a protective sleeve is provided with the sponge bed course, the internal surface of sponge bed course is provided with the polyurethane heat preservation and fills up, the inside of polyurethane heat preservation pad is provided with the cavity, the inboard of polyurethane heat preservation pad is provided with the connecting plate, the internal surface of connecting plate is provided with sliding sleeve, sliding sleeve's inside is provided with the pyrocondensation cover, compound steel pipe is installed to the inboard of pyrocondensation cover, the surface of a protective sleeve is provided with the bleeder vent, the surface of compound steel pipe is provided with the polyethylene heat preservation, the inside of compound steel pipe is provided with the opening, buffer sleeve is all installed at the outside both ends of a protective sleeve, install the anchor ring between buffer sleeve and the protective.

Description

Prefabricated insulating tube of multilayer that coefficient of heat conductivity is low

Technical Field

The utility model relates to a thermal insulation pipe technical field specifically is a prefabricated insulating tube of multilayer that coefficient of heat conductivity is low.

Background

The heat preservation pipe is a short name of a heat insulation pipeline, is used for conveying liquid, gas and other media, in the heat insulation engineering heat preservation of pipelines of petroleum, chemical industry, aerospace, hot spring-military, central heating, central air conditioning, municipal administration and the like, the heat preservation pipe is suitable for conveying various media within the range of-50 ℃ to 150 ℃, the heat preservation pipe is widely applied to the conveying of central heating, cooling and hot oil and the heat preservation and cold insulation engineering of the industries of heating rooms, cold storages, coal mines, petroleum, chemical industry and the like, the polyurethane material is the most common heat preservation material in the world at present, the hard polyurethane has a plurality of excellent performances, the heat-insulating pipe is widely applied to the field of heat insulation in European and American countries, is an important factor influencing energy conservation, is more and more generally emphasized by countries in the world in development and application, has a long history in foreign heat-insulating industry, and novel heat-insulating materials are continuously emerging.

Before 1980, the development of heat preservation pipes in China is very slow, a few heat preservation plants can only produce a small amount of underground directly-buried heat preservation pipes, but the Chinese heat preservation industry is struggled for more than 30 years, particularly the high-speed development of nearly 10 years, a large number of products are developed from inexhaustible products, the products are diversified from single products, the quality is from low to high, the application is more and more common, but the heat insulation coefficient of the existing heat preservation pipes is not high, workers can be injured by mistake, and the safety is general; therefore, the market urgently needs to develop a multilayer prefabricated heat-insulating pipe with low heat conductivity coefficient to help people to solve the existing problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prefabricated insulating tube of multilayer that coefficient of heat conductivity is low to the coefficient of heat insulation of the current insulating tube that provides in solving above-mentioned background is not high, and the staff mistake touches can cause personnel's injury, the general problem of security.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a prefabricated insulating tube of multilayer that coefficient of heat conductivity is low, includes a protective sleeve, the inside of a protective sleeve is provided with the sponge bed course, the sponge bed course bonds with a protective sleeve and is connected, the internal surface of sponge bed course is provided with the polyurethane heat preservation and fills up, the polyurethane heat preservation fills up and bonds with the sponge bed course and be connected, the inside of polyurethane heat preservation pad is provided with the cavity, the cavity sets up structure as an organic whole with the polyurethane heat preservation pad, the inboard of polyurethane heat preservation pad is provided with the connecting plate, the connecting plate sets up structure as an organic whole with the polyurethane heat preservation pad, the internal surface of connecting plate is provided with sliding sleeve, sliding sleeve and connecting plate fixed connection, sliding sleeve's inside is provided.

Preferably, the composite steel pipe is installed on the inner side of the heat shrinkable sleeve, one end of the heat shrinkable sleeve is connected with the composite steel pipe in a welding mode, the other end of the heat shrinkable sleeve extends into the sliding sleeve and is connected with the sliding sleeve in a sliding mode, and the heat shrinkable sleeve and the sliding sleeve are provided with a plurality of parts.

Preferably, the outer surface of the protective sleeve is provided with a plurality of air holes, the air holes are arranged into an integral structure with the protective sleeve, and the sponge cushion layer is attached to the air holes.

Preferably, the outer surface of the composite steel pipe is provided with a polyethylene heat-insulating layer, the polyethylene heat-insulating layer is respectively bonded with the heat-shrinkable sleeve and the composite steel pipe, and the interior of the composite steel pipe is provided with a through hole.

Preferably, the outside both ends of a protection sleeve are all installed and are cushioned the sleeve, install the reinforcement ring between a buffering sleeve and a protection sleeve, the internal surface of reinforcement ring is provided with the sealing washer, the reinforcement ring passes through sealing washer sealing connection with a protection sleeve and a buffering sleeve respectively.

Preferably, the connecting pipe is installed to the outside one end of cushion sleeve, connecting pipe and cushion sleeve welded connection, corrugated compensator is installed to one side of connecting pipe, flange is installed to one side of corrugated compensator.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a setting of sliding sleeve, after the compound steel pipe is used for a long time, produced heat can carry out the first layer protection heat preservation through the polyethylene heat preservation of surface, make the effectual separation of temperature at the compound steel pipe internal surface, unnecessary temperature can be absorbed through the thermal shrinkage cover, the thermal shrinkage cover is compounded by radiation crosslinking polyolefin substrate and special type sealing hot melt adhesive and forms good bonding with polyolefin substrate, compound steel pipe surface and solid epoxy coating, the thermal shrinkage cover is when heating installation, the substrate is when radial contraction, inside compound glue film melts, tightly cladding is in compound steel pipe filling opening department, form a firm anticorrosive body outside the pipeline together with the substrate, have excellent stand wear and tear, corrosion-resistant, shock resistance and good ultraviolet resistance and light aging resistance, thereby can effectively improve the intensity of compound steel pipe, the separation heat spreads out through compound steel pipe welding seam, and through the outside slip sleeve of heat shrinkable sleeve, can be heated the back at heat shrinkable sleeve, transmits the heat that the heat shrinkable sleeve absorbed, and can have certain buffer capacity when compound steel pipe pressurized, can effectively protect compound steel pipe inner structure, improves certain thermal-insulated ability for the coefficient of heat conductivity of insulating tube reduces.

2. The utility model discloses a through the setting of sponge bed course, the heat passes through behind heat shrinkable sleeve and the slip sleeve transmission for micropore calcium silicate sleeve, accessible micropore calcium silicate sleeve further insulates against heat, remaining temperature accessible micropore calcium silicate sleeve transmits for polyurethane heat preservation pad, carries out the multilayer protection work, last temperature accessible polyurethane heat preservation pad transmits for the sponge bed course, through the effective separation of sponge bed course, can cooperate the bleeder vent of lag cylinder surface to release the heat dispersion, thereby further reduced the heat of lag cylinder surface.

Drawings

FIG. 1 is a front view of a multi-layer prefabricated thermal insulation pipe with low thermal conductivity of the present invention;

FIG. 2 is an internal structure view of a multi-layer prefabricated thermal insulation pipe with low thermal conductivity of the present invention;

fig. 3 is a cross-sectional view of the multi-layer prefabricated thermal insulation pipe with low thermal conductivity of the utility model.

In the figure: 1. a protective sleeve; 2. a buffer sleeve; 3. a seal ring; 4. reinforcing rings; 5. a connecting pipe; 6. A ripple compensator; 7. a connecting flange; 8. air holes are formed; 9. a sponge cushion layer; 10. a cavity; 11. a microporous calcium silicate sleeve; 12. a polyurethane thermal insulation pad; 13. a connecting plate; 14. thermal shrinkage sleeving; 15. a sliding sleeve; 16. A polyethylene heat-insulating layer; 17. compounding a steel pipe; 18. and (6) a port.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.

Referring to fig. 1-3, the present invention provides an embodiment: a multi-layer prefabricated thermal insulation pipe with low heat conductivity coefficient comprises a protective sleeve 1, a sponge cushion layer 9 is arranged inside the protective sleeve 1, the sponge cushion layer 9 is bonded with the protective sleeve 1, a polyurethane thermal insulation pad 12 is arranged on the inner surface of the sponge cushion layer 9, the polyurethane thermal insulation pad 12 is bonded with the sponge cushion layer 9, a cavity 10 is arranged inside the polyurethane thermal insulation pad 12, the cavity 10 and the polyurethane thermal insulation pad 12 are arranged into an integral structure, a connecting plate 13 is arranged on the inner side of the polyurethane thermal insulation pad 12, the connecting plate 13 and the polyurethane thermal insulation pad 12 are arranged into an integral structure, a sliding sleeve 15 is arranged on the inner surface of the connecting plate 13, the sliding sleeve 15 is fixedly connected with the connecting plate 13, a thermal shrinkage sleeve 14 is arranged inside the sliding, the heat absorbed by heat shrink wrap 14 is transferred after heat shrink wrap 14 is heated by sliding sleeve 15 outside of heat shrink wrap 14.

Further, compound steel pipe 17 is installed to the inboard of heat shrinkable sleeve 14, the one end and the compound steel pipe 17 welded connection of heat shrinkable sleeve 14, the other end of heat shrinkable sleeve 14 extends to inside and the 15 sliding connection of sliding sleeve 15 of sliding sleeve, heat shrinkable sleeve 14 and sliding sleeve 15 all are provided with a plurality of, can have certain buffer capacity when compound steel pipe 17 is compressed, can effectively protect compound steel pipe 17 inner structure, improve certain thermal-insulated ability for the coefficient of heat conductivity of insulating tube reduces.

Further, the surface of a protection sleeve section of thick bamboo 1 is provided with bleeder vent 8, bleeder vent 8 is provided with a plurality of, and a plurality of bleeder vent 8 all sets up structure as an organic whole with a protection sleeve section of thick bamboo 1, and sponge bed course 9 and bleeder vent 8 are laminated, and temperature accessible polyurethane keeps warm and fills up 12 transmission and give sponge bed course 9, through the effective separation of sponge bed course 9, can cooperate the bleeder vent 8 of a protection sleeve section of thick bamboo 1 surface to release the heat dispersion, thereby further reduced the heat of a protection sleeve section of thick bamboo 1 surface.

Further, the outer surface of composite steel pipe 17 is provided with polyethylene heat preservation 16, and polyethylene heat preservation 16 bonds with thermal shrinkable sleeve 14 and composite steel pipe 17 respectively and is connected, and composite steel pipe 17's inside is provided with opening 18, and produced heat can carry out the first layer protection heat preservation through the polyethylene heat preservation 16 of outer surface for the effectual separation of temperature is at composite steel pipe 17 internal surface.

Further, buffering sleeve 2 is all installed at the outside both ends of a protection sleeve section of thick bamboo 1, installs reinforcing ring 4 between buffering sleeve 2 and a protection sleeve section of thick bamboo 1, and reinforcing ring 4's internal surface is provided with sealing washer 3, and reinforcing ring 4 passes through sealing washer 3 sealing connection with a protection sleeve section of thick bamboo 1 and buffering sleeve 2 respectively, reduces the weight at compound steel pipe 17 both through buffering sleeve 2, conveniently installs.

Further, connecting pipe 5 is installed to the outside one end of cushion sleeve 2, and connecting pipe 5 and cushion sleeve 2 welded connection, corrugated compensator 6 is installed to one side of connecting pipe 5, and flange 7 is installed to one side of corrugated compensator 6, through corrugated compensator 6 with the size change that absorbs compound steel pipe 17 and produce by reasons such as expend with heat and contract with cold.

The working principle is as follows: when the heat shrinkable sleeve 14 is heated and installed, the substrate shrinks in the radial direction and the inner composite glue layer melts and tightly covers the repaired mouth of the composite steel pipe 17, and a firm anti-corrosion body is formed outside the pipeline together with the substrate, so that the strength of the composite steel pipe 17 can be effectively improved, the heat is prevented from being transmitted out through the welding seam of the composite steel pipe 17, and the heat is prevented from being transmitted out through the sliding sleeve 15 outside the heat shrinkable sleeve 14, can be heated the back at thermal shrinkable sleeve 14, transmit the heat that thermal shrinkable sleeve 14 absorbed, and can have certain buffer capacity when compound steel pipe 17 is pressurized, can effectively protect compound steel pipe 17 inner structure, the heat passes through thermal shrinkable sleeve 14 and sliding sleeve 15 and transmits behind micropore calcium silicate sleeve 11, accessible micropore calcium silicate sleeve 11 further insulates against heat, waste heat accessible micropore calcium silicate sleeve 11 transmits for polyurethane heat preservation pad 12, carry out the multilayer protection work, last temperature accessible polyurethane heat preservation pad 12 transmits for sponge cushion layer 9, effective separation through sponge cushion layer 9, can cooperate the bleeder vent 8 of lag sleeve 1 surface to disperse the release of heat, thereby further reduced the heat of lag sleeve 1 surface.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a prefabricated insulating tube of multilayer that coefficient of heat conductivity is low, includes protective sleeve (1), its characterized in that: the interior of the protective sleeve (1) is provided with a sponge cushion layer (9), the sponge cushion layer (9) is bonded with the protective sleeve (1), the inner surface of the sponge cushion layer (9) is provided with a polyurethane heat-insulating pad (12), the polyurethane heat-insulating pad (12) is bonded with the sponge cushion layer (9), a cavity (10) is arranged in the polyurethane heat-insulating pad (12), the cavity (10) and the polyurethane heat-insulating pad (12) are arranged into an integral structure, the inner side of the polyurethane heat-insulating pad (12) is provided with a connecting plate (13), the connecting plate (13) and the polyurethane heat-insulating pad (12) are arranged into an integral structure, the inner surface of the connecting plate (13) is provided with a sliding sleeve (15), the sliding sleeve (15) is fixedly connected with the connecting plate (13), and a heat-shrinkable sleeve (14) is arranged inside the sliding sleeve (15).

2. The prefabricated low thermal conductivity multilayer insulating pipe of claim 1, wherein: the composite steel pipe (17) is installed to the inboard of heat shrinkable sleeve (14), the one end and the composite steel pipe (17) welded connection of heat shrinkable sleeve (14), the other end of heat shrinkable sleeve (14) extends to inside and sliding sleeve (15) sliding connection of sliding sleeve (15), heat shrinkable sleeve (14) and sliding sleeve (15) all are provided with a plurality of.

3. The prefabricated low thermal conductivity multilayer insulating pipe of claim 1, wherein: the outer surface of the protective sleeve (1) is provided with air holes (8), the air holes (8) are provided with a plurality of air holes, the air holes (8) are all arranged into an integral structure with the protective sleeve (1), and the sponge cushion layer (9) is attached to the air holes (8).

4. The prefabricated low thermal conductivity multilayer insulating pipe of claim 2, wherein: the composite steel pipe is characterized in that a polyethylene heat-insulating layer (16) is arranged on the outer surface of the composite steel pipe (17), the polyethylene heat-insulating layer (16) is respectively bonded with the heat-shrinkable sleeve (14) and the composite steel pipe (17), and a through hole (18) is formed in the composite steel pipe (17).

5. The prefabricated low thermal conductivity multilayer insulating pipe of claim 3, wherein: buffering sleeve (2) are all installed at the outside both ends of a protective sleeve section of thick bamboo (1), install reinforcing ring (4) between buffering sleeve (2) and the protective sleeve section of thick bamboo (1), the internal surface of reinforcing ring (4) is provided with sealing washer (3), reinforcing ring (4) pass through sealing washer (3) sealing connection with a protective sleeve section of thick bamboo (1) and buffering sleeve (2) respectively.

6. The prefabricated low thermal conductivity multilayer insulating pipe of claim 5, wherein: connecting pipe (5) are installed to the outside one end of buffer sleeve (2), connecting pipe (5) and buffer sleeve (2) welded connection, corrugated compensator (6) are installed to one side of connecting pipe (5), flange (7) are installed to one side of corrugated compensator (6).