CN210266238U

CN210266238U - Novel heat-insulating pipeline

Info

Publication number: CN210266238U
Application number: CN201921119310.XU
Authority: CN
Inventors: 刘华军; 程东东
Original assignee: China Hebei Hong Peng Pipe Fitting Co
Current assignee: China Hebei Hong Peng Pipe Fitting Co
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2020-04-07
Anticipated expiration: 2029-07-17

Abstract

The utility model provides a novel heat preservation pipeline, which comprises an inner pipe, an outer pipe and a heat preservation layer, wherein the outer pipe is sleeved outside the inner pipe, a closed cavity is formed between the inner pipe and the outer pipe, and the heat preservation layer is arranged on the outer pipe through a connecting piece; a bulge is formed on the inner wall of the inner tube and extends along the axial direction of the inner tube. The utility model has the advantages that the airtight cavity is formed between the inner pipe and the outer pipe, the heat conductivity of the flowing medium in the inner pipe can be reduced, the heat loss is slowed down, meanwhile, the airtight cavity also has certain sound insulation effect, the noise generated by flushing the inner pipe by the flowing medium in the flowing process is reduced, moreover, the heat preservation layer is arranged on the outer pipe through the connecting piece, the bonding strength of the inner pipe and the heat preservation layer can be improved, and the heat preservation layer is prevented from falling off due to long-time use; in addition, the inner pipe is internally provided with a bulge extending along the axial direction of the inner pipe, so that the thickness of the inner pipe can be locally increased, the scouring of the flowing medium to the inner pipe is reduced, and the service life of the pipeline is prolonged.

Description

Novel heat-insulating pipeline

Technical Field

The utility model relates to the technical field of pipelines, specifically relate to a novel heat preservation pipeline.

Background

Pipelines are devices for transporting gas, liquid or fluids connected by pipes, pipe connectors, valves, etc., and are widely used in various fields.

In the prior art, the pipeline generally adopts the metal material preparation to form, be used for carrying flowing medium, but be not applicable to the operating mode that needs carry out heat preservation treatment to flowing medium, consequently, when having the requirement to flowing medium's temperature, usually, the outside parcel one deck insulating material of pipeline realizes, however, its heat preservation effect is not good and the bonding strength between insulating material and the pipeline is not high, cause insulating material easily to drop and damage in the use, influence heat insulating ability, in addition, current pipeline does not have silencing device, flowing medium produces from inside to outside noise because of scouring away the pipeline at the in-process that flows, consequently, also can the noise reduction when the heat insulating ability is guaranteed to the urgent need to design a pipeline.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the above-mentioned technical problem among the prior art to a certain extent at least. In view of this, the utility model discloses need to provide a novel thermal insulation pipeline that can guarantee heat insulating ability also can the noise reduction.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:

a novel heat-insulating pipeline comprises an inner pipe, an outer pipe and a heat-insulating layer, wherein the outer pipe is sleeved outside the inner pipe, a closed cavity is formed between the inner pipe and the outer pipe, and the heat-insulating layer is arranged on the outer pipe through a connecting piece; and a bulge extending along the axial direction of the inner pipe is formed on the inner wall of the inner pipe.

According to the utility model discloses an embodiment, the connecting piece is the anchor nail, be provided with the recess on the outer tube, the anchor nail is close to the one end fixed connection of outer tube is in the recess, the anchor nail deviates from the one end of outer tube is inserted the heat preservation predetermined distance.

According to the utility model discloses an embodiment, the outer tube with still be provided with the amortization rubber layer between the heat preservation, the anchor nail runs through the amortization rubber layer, just the amortization rubber layer is close to form on the internal surface of outer tube along the perpendicular to the hemisphere amortization body that inner tube axis direction extends.

According to an embodiment of the present invention, the heat-insulating layer is an aerogel heat-insulating felt layer or a polyurethane foam layer.

According to the utility model discloses an embodiment, the protective sheath is established to the insulation cover overcoat still, the protective sheath is the glass steel.

Due to the adoption of the technical scheme, the utility model discloses the technological progress who gains is:

the utility model provides a novel heat preservation pipeline, which can reduce the heat conductivity of the flowing medium in the inner pipe and slow down the heat loss by forming a closed cavity between the inner pipe and the outer pipe, and meanwhile, the closed cavity also has certain sound insulation effect, thus reducing the noise generated by the flowing medium scouring the inner pipe in the flowing process; furthermore, the closed cavity and the heat-insulating layer on the outer side of the outer pipe supplement each other, so that further guarantee is provided for the heat-insulating property of the pipeline; moreover, the heat-insulating layer is arranged on the outer pipe through the connecting piece, so that the bonding strength of the heat-insulating layer and the outer pipe can be improved, and the heat-insulating layer is prevented from falling off due to long-time use; in addition, the inner pipe is internally provided with a bulge extending along the axial direction of the inner pipe, so that the thickness of the inner pipe can be locally increased, the scouring of the flowing medium to the inner pipe is reduced, and the service life of the pipeline is prolonged.

Drawings

Fig. 1 is a schematic structural view of the novel heat preservation pipeline provided by the utility model;

fig. 2 is a sectional view of the novel heat preservation pipeline provided by the utility model;

reference numerals:

1: an inner tube; 2: an outer tube; 3: a heat-insulating layer; 4: a cavity; 5: a connecting member; 6: a protrusion; 7: a sound-deadening rubber layer; 8: a sound deadening body; 9: and (6) a protective sleeve.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 and 2, the utility model provides a novel heat preservation pipeline, including an inner tube 1, an outer tube 2 and a heat preservation layer 3, the outer tube 2 is sleeved outside the inner tube 1, and an airtight cavity 4 is formed between the inner tube 1 and the outer tube 2, wherein the outer tube 2 can be welded on the inner tube 1, the bonding strength between the two is improved, in addition, a through hole with a sealing plug can be arranged on the outer tube 2, when the outer tube is installed on the inner tube, air in the airtight cavity can be pumped out through a vacuum pumping device, so that a vacuum cavity is formed between the outer tube 2 and the inner tube 1, and the heat preservation performance and the sound insulation performance of the pipeline can achieve the optimal effect;

the heat-insulating layer 3 is arranged on the outer pipe through a connecting piece 5; the heat preservation layer 3 is an aerogel heat preservation felt layer or a polyurethane foam layer. The connecting piece 5 is an anchor, a groove for accommodating the anchor is formed in the outer pipe 2, one end, close to the outer pipe, of the anchor can be fixedly connected into the groove in a welding mode, one end, away from the outer pipe, of the anchor is inserted into the heat-insulating layer 3 for a preset distance, meanwhile, a cementing layer is arranged on the inner surface, close to the outer pipe, of the heat-insulating layer 3, the heat-insulating layer 3 is bonded on the outer pipe, the heat-insulating layer can be arranged on the outer pipe in a double-fixed connection mode, the connection strength between the heat-insulating layer 3 and the outer; in addition, the number of the anchor bolts can be multiple, the anchor bolts are arranged at intervals along the circumferential direction of the outer pipe, the anchor bolts positioned in the same circumferential direction form a group of connecting devices, the connecting devices can also be multiple groups, and the multiple groups of connecting devices are distributed at intervals along the axial direction of the outer pipe.

The inner pipe 1 is internally provided with the bulge 6, and the bulge 6 extends along the axial direction of the inner pipe 1, so that the thickness of the inner pipe can be locally increased, the scouring of flowing media to the inner pipe is reduced, and the service life of the pipeline is prolonged; but also does not increase the whole thickness of the inner pipe and the production cost.

Further, still be provided with amortization rubber layer 7 between outer tube 2 and the heat preservation 3, the anchor nail runs through amortization rubber layer 7, and amortization rubber layer 7 forms on being close to the internal surface of inner tube along the hemispherical amortization body 8 that the perpendicular to inner tube axis direction extends, hemispherical amortization body is hemispherical recess promptly, when the inside noise of inner tube 1 outdiffusion spreads, partial noise passes through the cambered surface reflection of amortization body 8, there is the fractional noise on the one hand and can directly absorb, on the one hand, partial noise can be at the internal transmission consumption of amortization, the noise intensity of spreading to the environment has been reduced.

In order to further protect the heat-insulating layer 3, a protective sleeve 9 is also sleeved outside the heat-insulating layer 3, and the protective sleeve 9 is a glass fiber reinforced plastic or polyethylene protective sleeve and can also be formed by winding epoxy resin and fibers; the protective sleeve has the advantages of good moisture resistance, chemical corrosion resistance and aging resistance.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. The novel heat-insulating pipeline is characterized by comprising an inner pipe, an outer pipe and a heat-insulating layer, wherein the outer pipe is sleeved outside the inner pipe, a closed cavity is formed between the inner pipe and the outer pipe, and the heat-insulating layer is arranged on the outer pipe through a connecting piece; a bulge is formed on the inner wall of the inner tube and extends along the axial direction of the inner tube.

2. The novel heat-insulating pipeline as claimed in claim 1, wherein the connecting member is an anchor, the outer pipe is provided with a groove, one end of the anchor close to the outer pipe is fixedly connected in the groove, and one end of the anchor far away from the outer pipe is inserted into the heat-insulating layer for a predetermined distance.

3. The novel heat insulation pipeline as claimed in claim 2, wherein a sound attenuation rubber layer is further arranged between the outer pipe and the heat insulation layer, the anchor bolts penetrate through the sound attenuation rubber layer, and a hemispherical sound attenuation body extending along a direction perpendicular to the axis of the inner pipe is formed on the inner surface, close to the outer pipe, of the sound attenuation rubber layer.

4. The novel thermal insulation pipeline according to claim 1, wherein the thermal insulation layer is an aerogel thermal insulation felt layer or a polyurethane foam layer.

5. The novel heat-insulating pipeline as claimed in claim 1, wherein a protective jacket is further sleeved outside the heat-insulating layer, and the protective jacket is made of glass fiber reinforced plastics.