CN2241854Y - Steam and high-temp. medium compounded heat-insulating plow-in heat distribution pipeline - Google Patents

Abstract

The utility model relates to a steam and high-temp. Medium compounded heat-insulating plow-in heat distribution pipeline, comprising a heat-insulating pipe and a fixing supporting seat. The utility model is characterized in that the heat distribution pipeline is divided into a plurality of independent pipe segments by the fixing supporting seat; except for straight pipes, the pipe segments also comprising the bent pipe of each node of the heat distribution pipeline, reducing pipes, steam discharge pipes, drainage pipes, a cutting well chamber, etc.; the straight pipes, the bent pipes, the reducing pipes, the steam discharge pipes, the drainage pipes, the cutting well chamber, etc. are all the structures of compounded heat-insulating pipes with inner slide; a end-face sealing water-proof cover or an elastic sealing water-proof structure is added on the end face. The fixing supporting seat is an integral type fixed pier base which is provided with a baffle plate with double faces, is outside connected with a sealing water-proof cover with flanging and is filled with heat-resisting reinforced concrete.

Description

Steam and high-temperature medium complex heat-preservation direct burial heating power pipe

The utility model relates to the heat supply heating, a kind of direct buried delivering vapor high-temperature medium insulating tube that lays that is used for is provided especially, has been the underground interior slip direct burial composite thermal-insulating pipes that the water-tight structure is arranged that design of directly burying underground of industry high-temperature steam (power or heating power) pipeline such as thermoelectricity, oil, chemical industry, light industry, metallurgy specifically.

It is a new technology of developing in the world that high temperature steam pipeline adopts directly buried installation, this is to energy savings, improve (beautifying) environment, reduce cost, uplift the people's living standard the construction of modern cities and towns, economy, environment and social benefit are widely arranged, its meaning is very great, as water, electricity, communication, traffic, has become modern city infrastructure important component part.The heating power pipe of present industrial direct-burried design; because it is an integral body that metal inner pipe, heat-insulation layer, protective layer three glue; under temperature action; because the hot physical difference of material can not synchronization telescope; break in the protective layer many places; waterproof failure; insulation material advances (oozing) water; thermal conductivity factor increases severely; heat loss strengthens, the design person once proposed a kind of can in the direct burial complex protection pipe (Chinese patent 94228804.1) that slides and waterproof sealing cover (Chinese patent 94228803.3) thereof solved water-tight problem in the single tube section.

The purpose of this utility model is to provide a kind of steam and high-temperature medium complex heat-preservation direct burial heating power pipe, and its whole pipe does not break high insulating effect.

The utility model provides a kind of steam and high-temperature medium complex heat-preservation directly buried heat distribution pipeline, is made up of insulation system and hold-down support, it is characterized in that:

This heating power pipe is divided into independent one by one pipeline section by hold-down support, pipeline section comprises also that except that straight tube each node is as curved footpath pipe in the heating power piping, bend pipe, gland steam exhauster, drain pipe, well-cutting chamber etc., slip complex heat-preservation tubular construction in being, end face is added with the end face seal bucker or is provided with the elastic packing waterproof construction;

Hold-down support is two-sided plate washer, and the water-tight cover of outer tape splicing flange is used the unitary fixed pier base of heat resisting steel reinforced concrete can again;

Be connected to the direct burial FlexbleJoint in the pipe, this FlexbleJoint is bellows outer cover heat-insulation layer and protective layer structure.

The utility model proposes a kind of high-temperature steam composite thermal-insulating pipe directly buried technology according to theory and practice, whole piping is separated into some pipeline sections by the hold-down support end points, independent sealed waterproofing design; Its every pipeline section heat (moving) solenoid adopts interior its hold-down support of slip direct burial composite thermal-insulating pipe of proprietary water-tight structure also to adopt band water-tight cover; heatproof (heat) armored concrete is fixing (pier) seat of the direct burial of agent structure; drain pipe in its piping; bend pipe; reducer pipe; branched pipe; employings such as well-cutting chamber have water-tight structure serial waterproofing design such as (elastic packing waterproof construction or end face seal buckers); thereby overcome the heating power pipe of present industrial direct-burried design; because metal inner pipe; heat-insulation layer; the protective layer three is sticking to be an integral body; under temperature action; because the hot physical difference of material can not synchronization telescope; break in the protective layer many places; waterproof failure; insulation material advances (oozing) water; thermal conductivity factor increases severely; problems such as heat loss increasing; the complex heat-preservation heating power pipe of system is given in the design that provides by the utility model; good water-tight performance/insulation heat-insulating property is all arranged at each line sections position; satisfy concentrated supply of heating in the city, coastal low-lying or regional direct-burried steam of high water level or the actual instructions for use of high-temperature water pipe network.By embodiment in detail the utility model is described in detail below in conjunction with accompanying drawing.

Accompanying drawing 1 is interior slip direct burial complex heat-preservation heating power tubular construction schematic diagram:

Accompanying drawing 2 is complex heat-preservation heating power pipe (end section) structural representations that have the water-tight performance;

Accompanying drawing 3 is to have fixing (pier) seat of water-tight cover heatproof (heat) armored concrete;

Accompanying drawing 4 is well-cutting chamber's structural representations of band water-tight cover hold-down support;

Accompanying drawing 5 is to have bellow expander water-tight hold-down support structural representation;

Accompanying drawing 6 is hydrophobic or steam discharges of band water-tight structure or cuts down an inspection shaft (chamber) structural representation.

Accompanying drawing 1 is in the interior slip direct-burried compound insulation structure schematic diagram of an example senior middle school temperature jet chimney of the present utility model; 1 steel pipe (seamless or spiral welding steel pipe), 2 steel pipes are coated with the thermostable rustproof enamelled coating outward; 3 inorganic lubricant layers (being coated with wear-resisting drag reduction layer during helix tube outward); 4 high temperature resistant heat insulation layers (by foam glass or hydrophobic micro-porous magnesium silicate type watt) and with neutral density glass silk cloth 8 (or having the silk ribbon that aluminium is moored) tighten; 5 temperature-resistant hard organic heat-insulating layers (hard polyurethane foams or polystyrene foam plastics); 6 water-tight corrosion-proof protective layers (multifunctional water-proofing anti-corrosion resin fiberglass or high density polyethylene pipe); its insulation material of slip direct-burried complex heat-preservation heating power pipe is vertical in whole; the transverse joint place all adopts high-temperature resistance adhesive 7 seals, prevents to produce hot-fluid short circuit (heat bridge) reduction or destroys insulation efficiency.

Slip direct-burried complex heat-preservation heating power pipe end water-tight structural representation in the accompanying drawing 2: 1 steel pipe; 2 steel pipes are coated with the thermostable rustproof enamelled coating outward; 3 inorganic lubricant layers (scribbling wear-resisting drag reduction layer during helix tube); 4 high temperature resistant heat insulation layers; 5 temperature-resistant hard organic heat-insulating layers; 9 end face seal buckers (metal foil weldering system or nonmetal heatproof material are made); 6 water-tight corrosion-proof protective layers; be provided with 9 in the 9 end face buckers; elasticity high-temperature-resistant thermal-insulation material; usually select silicate fiber for use; hydrophobic asbestos or hydrophobic litaflex; and with high-temperature resistance adhesive and its insulating layer material adhering and sealing; the refractory seals structure glue is the special-purpose high temperature type structure glue of establishing for end face bucker 9 and fish tail and waterproof layer 6 or steel pipe 1 sealing; when protective layer 6 adopted high density polyethylene (HDPE) to mould pipe, elevated-temperature seal structure glue bonded metal steel plate and polyethylene unlike material performance also reached more than the 4MPa, and intensity is quite high.

Accompanying drawing 3 is for having fixing (pier) holder structure signal of flange water-tight cover heatproof (heat) reinforced concrete: it is by two-sided plate washer 22, floor 23, fixing (pier) seat of baffle-type that heatproof (heat) reinforced concrete foundation 28 constitutes for main body, for reducing heat loss, adopt heat-resisting (more than 300 ℃) asbestos backing plate 212 that heat insulation steel sleeve 210 is fixed in outside the heating power pipe 1, and use high-temperature resistance adhesive seal face, interior hydrophobicity asbestos or the hydrophobic litaflex of can filling as required; Between its two-sided plate washer 22 and heat insulation steel sleeve 210, be added with high temperature resistant rigid asbestos board and form heat insulation thrust backing plate 211; its end face or interlayer are also by the high-temperature resistance adhesive adhering and sealing; guarantee water resistance; the two-sided plate washer 22 of ribbed plate 23; flange 24 metallic plates welding with the end face bucker; in fill dry good (＜0.5% moisture) asbestos 27 of surging; water-tight cover 24 and steel pipe (heating power pipe) 1 seal welding; the special-purpose high-temperature resistant structural adhesive of the bonding employing of its outer and protective layer; make it more than adhesive strength＞4MPa, guarantee waterproof anti-corrosion performance.

The hold-down support structural representation of accompanying drawing 4 border-cutting door operations, 1 heating power pipe, 23 two-sided plate washers; 23 floors, 24 water-tight cover and flange, 4 high temperature resistant heat insulation layers, 5 hard heat-insulated plastic layers; 28 heat resistance concrete bases; 6 many merits of water-tight corrosion-proof resin protective layer, 101 cut down door, and 111 cut down and locate flexible water heat-insulation layer (material); the indoor lid of 112 wells; 113 well chamber loam cakes, 114 little collecting-tanks, 115 hermetic seal bands (structure).Bucker 24 and biplate plate washer 22 metal solder or sqtructural adhesive sealing in the said structure, bucker 24 and 6 multifunctional water-proofing corrosion protective coverings are also used thermal structure adhesive adhering and sealing.

Accompanying drawing 5 is band bellow expander water-tight hold-down support connecting structure schematic diagram.1 heating power pipe among the figure; 23 two-way plate washers; 24 water-tight covers; 34 bellow expander termination buckers; the outer metal protective case of 37 bellow expanders; 38 bellow expanders sealing heat insulation protecting layer; 39 high temperature insulating material layers, 310 hard insulating material layer; 6 multifunctional water-proofing corrosion protective coverings, 28 heatproofs (heat) reinforced concrete foundation, 313 bellow expanders prop up bed course; 314 elasticity heat-barrier materials; in the direct burial bellow expander and hold-down support of above-mentioned formation, be with flange water-tight cover 24 and bellow expander bucker 34 except that adopting the metallic plate welded seal, also available thermal structure glue encapsulation process.

Accompanying drawing 6 is hydrophobic or steam discharge cuts down an inspection shaft cell structure.It is by heating power pipe 1; cross wall heating power pipe bucker device 42; cut down door 43; hydrophobic discharge pipe 44; chamber wall hermetic seal band structure 45; high temperature hydrophobic asbestos insulation material 46; flexibility is given water asbestic blanket or hydrophobic water-repellent paint outsourcing elastic water-proofing material coating 47; capping plate 49 in the Xiao Chi 48 that catchments, well chamber hand-hole, well chamber hand-hole loam cake 410; well chamber waterproof body of wall 411; heat-barrier coating 412 compositions such as grade, in view of cutting down the hydrophobic drainpipe of well not necessarily near the hold-down support place, the indoor heating power pipe of well connects and cuts down door 43 ends and be tightly connected to be provided with body of wall except that being provided with metal water-tight cover 42 and have the surplus flexible waterproof layer that necessarily stretches; when guaranteeing the thermal walking of heating power pipe; the intact into water of not tearing of shell insulation water-proof layer is the assurance energy-saving effect, when the heating power pipe is enabled; steam in the adiabator layer (containing wet) must be got rid of; in the time of need establishing gland steam exhauster, also will guarantee the sealing joint waterproof, the similar palpus of its version and the drain pipe exit well chamber that makes progress gets final product.

Claims (1)

1. steam and high-temperature medium complex heat-preservation directly buried heat distribution pipeline are made up of insulating tube and hold-down support, it is characterized in that:

This heating power pipe is divided into independent one by one pipeline section by hold-down support, and pipeline section also comprises the bend pipe of each node in the heating power pipe, reducer pipe except that straight tube, gland steam exhauster, drain pipe, well-cutting chamber etc., slip complex heat-preservation tubular construction in being, end face is added with the end face seal bucker or is provided with the elastic packing waterproof construction;

Hold-down support is two-sided plate washer, and the water-tight cover of outer tape splicing flange is used the unitary fixed pier base of heat resisting steel reinforced concrete can again;

Be connected to the direct burial FlexbleJoint in the pipe, this FlexbleJoint is bellows outer cover heat-insulation layer and protective layer structure, and end face also has the water-tight cover.

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