CN203067982U

CN203067982U - Vacuum heat-insulation and energy-conservation conveying pipeline for thermal fluid

Info

Publication number: CN203067982U
Application number: CN 201320086678
Authority: CN
Inventors: 沈双喜; 范利宁
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-02-26
Filing date: 2013-02-26
Publication date: 2013-07-17
Anticipated expiration: 2023-02-26

Abstract

The utility model discloses a vacuum heat-insulation and energy-conservation conveying pipeline for a thermal fluid. The vacuum heat-insulation and energy-conservation conveying pipeline comprises an inner fluid pipe and an outer sleeve steel pipe, wherein the inner fluid pipe is sleeved with the outer sleeve steel pipe; two ends of the outer sleeve steel pipe are sealed by end sealing plates, so that a vacuum heat insulation layer is formed between the two pipes; and the vacuum heat insulation layer is communicated with a closed valve. The vacuum heat-insulation and energy-conservation conveying pipeline adopts a trebling heat insulation structure, so that the heat energy radiation consumption and the cold condensation during conveying of steam and hot water are reduced. The problems that a conventional single-round or double-round conveying pipe is relatively higher in heat loss and heat loss ratio and lower in heat utilization ratio are solved.

Description

The energy-conservation conveyance conduit of vacuum heat-insulating hot fluid

Technical field

The utility model relates to the energy-conserving and environment-protective technical field, is specifically related to a kind of insulation pipe, the energy-conservation conveyance conduit of especially a kind of vacuum heat-insulating hot fluid.

Background technique

Use steam, hot water during industrial enterprise produces at present, in the engineerings such as cities and towns central heat supplying, conveyance conduit is a kind of to be wrapped up with glass cloth by the outer lagging of hot fluid steel pipe frame, a kind of is that thermal insulation layer and hot fluid steel pipe are formed with the outer pillar of high density polyethylene (HDPE), rigid poly urethanes foaming, and triplicity becomes an integral body closely; Structure can play certain heat insulating effect although it is so, but in the course of conveying still there is about 10%～35% heat energy loss, carries radius also to have only about 8km.

The model utility content

The utility model provides a kind of vacuum heat-insulating energy-conservation hot fluid conveyance conduit, and relatively large for solving existing conveyance conduit list (two) journey heat loss amount, heat loss rate is higher, the problem that heat utilization efficiency is lower.

For this reason, adopt following technological scheme: the energy-conservation conveyance conduit of a kind of vacuum heat-insulating hot fluid, comprise inner fluid pipe and outer steel pipe, described inner fluid pipe box is loaded in the outer steel pipe, the two ends of outer steel pipe are made by the head plate sealing and form vacuum heat-insulating layer between described two pipes, and this vacuum heat-insulating layer and airtight valve are communicated with.

Described outer steel pipe is the outer protective tube of suit more outward; Filling heat insulating wall between this outer steel pipe and the outer protective tube.

Described inner fluid pipe outer wall spraying radiation protective layer, antiradiation coating in the described outer steel pipe inner-wall spraying.

The utility model adopts triple heat insulation structures, to reduce heat energy radiation loss and the condensation knot in steam, the delivery process.First heavily is vacuum heat-insulating layer, because the maintenance in no resistance of air space does not have the indirect conduction of heat transfer carrier, has reached heat insulation effect.After the processing by the vacuum technique means, between flow-path tube and outer steel pipe internal surface, form the certain vacuum degree, reduce heat conduction and thermal emissivity rate again, reduce heat loss.

Second heavily adopts the compound insulation structure insulation, be provided with thermal insulation layer simultaneously, nano heat insulating material, because the thermal resistance effect that the zero convection effect of nanometer material and infinite multiaspect are long-pending, convection heat losses and the conductive heat loss of steam conveying pipe and delivery pipeline are reduced greatly, be the effect of good glass wool and polyurethane foam material, guaranteeing to reduce the pipeline overall cost under the prerequisite of adiabatic heat-insulation efficient energy-saving preferably.

Owing to increased radiation protective layer at the vacuum space internal and external layer, and repeatedly reflected and absorb thermal-radiating by the hole wall of vacuum heat-insulation technology and the many pores of nano heat insulating material, reduced thermal radiation loss.

At last, vacuum heat-insulation energy-saving heat preservation hot fluid line of the present invention maintenance cost≤1% in use.In system's running, reduced whole operating cost.

The present invention is applicable to that the steam of all Chemical Manufacture enterprises is carried, the steam of thermoelectricity enterprise is carried, the steam of textile printing and dyeing enterprises is carried, steam conveying, cities and towns central heat supply conveyance conduit and all heating power transmission engineerings such as manufacturing enterprise with steam and hot water of drug and food enterprise.

Description of drawings

Fig. 1 is structural representation of the present utility model.

Embodiment

With reference to Fig. 1, the energy-conservation conveyance conduit of a kind of vacuum heat-insulating hot fluid comprises inner fluid pipe and outer steel pipe,, described inner fluid pipe 1 is set in the outer steel pipe 2.Concrete assembling method is: install the perforate plectane that internal diameter and external diameter are complementary with described inner fluid pipe 1 external diameter, outer steel pipe 2 internal diameters respectively additional at the outer wall of inner fluid pipe 1, the two ends head of the outer steel pipe 2 on the inner fluid pipeline of certain-length is wanted welded seal simultaneously, be that the two ends of outer steel pipe 2 are made by head plate 9 welded seals and form vacuum heat-insulating layer 7 between described two pipes, so just outer steel pipe 2 and inner fluid pipe 1 have been made an integral body, described vacuum heat-insulating layer 7 and airtight valve 10 are communicated with.Described inner fluid pipe 1 and outer steel pipe 2 adopt withstand voltage seamless steel pipe.

The assembling method that described inner fluid pipe 1 is set in outer steel pipe 2 also can adopt method commonly used now, carries out suit etc. as mounting bracket between two pipes.

The outer protective tube 6 of described outer steel pipe 2 periphery suits; Filling heat insulating wall 5 between this outer steel pipe 2 and the outer protective tube 6.This thermal insulation layer 5 adopts glass wool and polyurethane foam material to fill.Described outer protective tube 6 is made by pvc material.

The outer radiation protective layer 4 of described inner fluid pipe 1 periphery spraying, radiation protective layer 3 in described outer steel pipe 2 inner-wall sprayings.Described radiation protective layer 3,4 adopts the liquid spraying of nanometer strong anti-oxidation aluminium powder, forms the smooth white bright radiation protective layer of single face.

Technical order of the present utility model:

1. thermal insulation layer hull-skin temperature≤10 ℃;

2. every kilometer heat energy transport loss≤5%;

3. fed distance 〉=15-30km;

4. heat utilization efficiency 〉=95%.

The utility model popularizing prospect and energy-saving potential:

The energy-conservation pipe technology of vacuum heat-insulating just by some enterprises as emphasis breakthrough that power-saving technology is studied, at present industrial enterprise at home use and market in the middle of only account for about 1%, market prospects are boundless.

Expect 2015, can promote 20% in the energy-conservation field that utilizes of industrial enterprise's heating power conveyance conduit, use large enterprise to promote the use of at steam such as the chemical industry in the whole nation, thermoelectricity, chemical fertilizer, textile printing and dyeings, can year energy-conservation ability 2,200 ten thousand tce; (northeast, North China, northwest) urban heating field of heating promotes 20% in the three Norths, about 5,600,000 tce of energy-conservation ability of year of formation.

Claims

1. energy-conservation conveyance conduit of vacuum heat-insulating hot fluid, comprise inner fluid pipe and outer steel pipe, it is characterized in that: described inner fluid pipe (1) is set in the outer steel pipe (2), the two ends of outer steel pipe (2) are made by head plate (9) sealing and form vacuum heat-insulating layer (7) between described two pipes, and this vacuum heat-insulating layer (7) and airtight valve (10) are communicated with.

2. the energy-conservation conveyance conduit of a kind of vacuum heat-insulating hot fluid according to claim 1 is characterized in that: the outer protective tube (6) of described outer steel pipe (2) periphery suit; Filling heat insulating wall (5) between this outer steel pipe (2) and the outer protective tube (6).

3. the energy-conservation conveyance conduit of a kind of vacuum heat-insulating hot fluid according to claim 1 is characterized in that: described inner fluid pipe (1) periphery spraying outer radiation protective layer (4), radiation protective layer (3) in described outer steel pipe (2) inner-wall spraying.