CN110067911A - Embedded medium pipeline and preparation method thereof with freeze proof dampproof effect - Google Patents
Embedded medium pipeline and preparation method thereof with freeze proof dampproof effect Download PDFInfo
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- CN110067911A CN110067911A CN201910405989.7A CN201910405989A CN110067911A CN 110067911 A CN110067911 A CN 110067911A CN 201910405989 A CN201910405989 A CN 201910405989A CN 110067911 A CN110067911 A CN 110067911A
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
- F16L53/30—Heating of pipes or pipe systems
- F16L53/35—Ohmic-resistance heating
- F16L53/38—Ohmic-resistance heating using elongate electric heating elements, e.g. wires or ribbons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/029—Shape or form of insulating materials, with or without coverings integral with the insulating materials layered
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/08—Means for preventing radiation, e.g. with metal foil
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Insulation (AREA)
- Pipe Accessories (AREA)
Abstract
The present invention provides a kind of embedded medium pipeline and preparation method thereof with freeze proof dampproof effect, the embedded medium pipeline is electric tracing medium pipeline with multi-layer structure, suitable for being embedded in the frost zone of cold wet area, heating structure, thermal energy storage conducting shell, heat-energy secondary feedback layer, insulated enclosure layer and the heat preservation cold insulation heat insulating construction set gradually from inside to outside including at least one medium pipeline and the medium pipeline periphery, the heating structure is the electric-heating belt being arranged on medium pipeline.The present invention buries medium pipeline and uses integrated philosophy of design, using multi-layer structure design and the same layer fissure of displacement, the technique system of laying of the superinsulation of interlayer tooled joint, solve electrical isolation and sealing problem of the electric-heating belt in embedded underground, simultaneously in the way of the technical treatment of thermal energy storage conducting shell and heat-energy secondary feedback layer, the thermal efficiency of electric-heating belt is greatly improved, energy consumption is reduced；Keep the temperature cold insulation thermal-insulation function when cold insulation heat insulating construction does not use electric-heating belt with summer.
Description
Technical field
The invention belongs to the heat preservation engineering thermal insulation technical fields of industrial pipeline, civil pipeline (or equipment), and in particular to one
Kind is suitable for the embedded medium pipeline and preparation method thereof with freeze proof dampproof effect in the frost zone of cold wet area.
Background technique
Currently, frost zone generally is arranged in when industry, civilian medium pipeline (or equipment) embedded underground hereinafter, for freezing layer
Deeper and needs are embedded to the medium pipeline (or equipment) frozen in layer, frequently with the embodiment of heat source pipeline tracing, which
Multi-purpose steam or hot water make outer supplying heat source, i.e., the heat dissipation of the heat compensation media operation pipeline (or equipment) distributed by heat tracing pipe
Loss, then be wrapped in heat tracing pipe and medium pipeline (or equipment) in insulating layer together with thermal insulation material, it is embedded in frost zone.
This traditional steam or hot-water type heat tracing antifreezing measures need a large amount of heat source to supply, and energy consumption is high, and corollary system is more numerous
It is miscellaneous, the heavy workload of installation and maintenance, management inconvenience.In recent years, with the birth of electric-heating belt technology, electric tracing can be effective
It using energy, converts electrical energy into thermal energy and temperature can be effectively controlled, play heating, heat preservation, antifreeze purpose, common sky
Between pipeline electric tracing system of laying referring to Fig. 1.
Electrically heat tracing working principle, which can be divided into, induction heating, direct-electrifying method, electrical resistance heating etc., this method base
Meet the requirement of the mostly heat-preserving anti-freezing of upper surface pipeline and underground pipe gallery pipeline (or equipment) in sheet, but due to electric tracing
The waterproofness of band requires height, and amount of localized heat is easily caused to concentrate, and easily leads to the reduction of electric-heating belt service life, also fails at present straight
Connect the frost zone for the heating of embedded underground medium pipeline (or equipment), heat-preserving anti-freezing, especially level of ground water area higher
It is interior.At present have research attempt by several electric-heating belts respectively penetrate in PVC insulation tube or metal catheter as heating with pipe with
Medium pipeline parallel lay-up together, but pvc pipe or metal catheter cannot wind (electric tracing according to predetermined way on medium pipeline
The power limited of band, parallel lay-up calorific value is restricted, heat transfer efficiency is too low), cause medium pipeline (or equipment) cannot get
Enough, uniform heat, and pvc pipe pyroconductivity is lower and pvc pipe there are gaps with electric-heating belt locational space, no
The limited even heat that electric-heating belt generates can effectively be released and efficient pass to medium pipeline (or equipment)；Separately
Outside, the encapsulation process of pvc pipe or metal catheter junction is more difficult, and therefore, which will cause electric-heating belt, and energy consumption is high, heat
Low efficiency, constructional difficulties are unsuitable for promoting the use of.
Summary of the invention
Against the above deficiency, the object of the present invention is to provide a kind of embedded medium pipelines with freeze proof dampproof effect.
The technical scheme adopted by the invention is as follows:
A kind of embedded medium pipeline with freeze proof dampproof effect is electric tracing medium pipeline with multi-layer structure, fits
In being embedded in the frost zone of cold wet area, including at least one medium pipeline (01) and the medium pipeline periphery from it is interior to
Heating structure (1), thermal energy storage conducting shell (2), heat-energy secondary feedback layer (3), insulated enclosure layer (4) and the guarantor set gradually outside
Warm cold insulation heat insulating construction (5), the heating structure (1) are the electric-heating belt (02) being arranged on medium pipeline (01), and heat preservation is protected
Cold heat insulating construction (5) is multi-layer compound structure, including set gradually from inside to outside for keep the temperature with the functional layer of cold insulation (51),
With cold insulation and prevent the damp-proof layer (52) of moisture condensation and the protective layer (53) with waterproofing reinforcement effect.
In the above-mentioned embedded medium pipeline with freeze proof dampproof effect, the thermal energy storage conducting shell (2) uses wire
Net is made, and the electric-heating belt that is laid in (02), medium pipeline (01) periphery form porous batt layer.
In the above-mentioned embedded medium pipeline with freeze proof dampproof effect, the thermal energy storage conducting shell (2) be by wire netting,
Any one or more of combination of aluminium wire netting, copper mesh, stainless steel cloth is formed by mesh sheet, and the mesh sheet and is in contact with it
Material electrochemical reaction, netting width 100mm-150mm does not occur.
In the above-mentioned embedded medium pipeline with freeze proof dampproof effect, the thermal energy storage conducting shell (2) is web-like mesh sheet,
At least provided with two layers, the periphery of electric-heating belt (02) and medium pipeline (01) is spirally wound on half lap platen press.
In the above-mentioned embedded medium pipeline with freeze proof dampproof effect, the heat-energy secondary feedback layer (3) includes being covered on
One layer of metal sheet band of thermal energy storage conducting shell (2) periphery, the metal sheet band are by aluminium foil, polishing stainless steel piece, electroplate
Feedback heat energy piece made of the roll bending that one of piece is formed.
In the above-mentioned embedded medium pipeline with freeze proof dampproof effect, the feedback heat energy of the heat-energy secondary feedback layer (3)
Piece is monoblock type roll bending, which is wrapped in the periphery of thermal energy storage conducting shell (2), and the edge at closure laminates fixation；Or
The feedback heat energy piece of heat-energy secondary feedback layer (3) described in person is the hardened structure of two-fold, and two roll bendings are combined into cylindrical shape and are wrapped in thermal energy
The periphery of conducting shell (2) is saved, and laminates fixation at two edges.
In the above-mentioned embedded medium pipeline with freeze proof dampproof effect, the insulated enclosure layer (4) is to be wrapped in thermal energy two
The banded structure of secondary feedback layer (3) periphery, the insulated enclosure layer are made of high-strength silicone rubber insulating self-adhesive band resistant to high temperature.
In the above-mentioned embedded medium pipeline with freeze proof dampproof effect, the functional layer (51) is by water-proof rock wool pipe, rock wool
Shell or polyurethane foam band are made, and damp-proof layer (52) adds glass wool cloth waterproof roll or cream by emulsified asphalt, water-proof cold adhesive
Change pitch, water-proof cold adhesive add EPDM rubber waterproof rolling material to be made, and protective layer (53) is the protection of metal or plastic material
Layer, plastering one of protective layer or felt, foil, dry goods protective layer or a variety of combinations.
The present invention also provides a kind of production method of above-mentioned embedded medium pipeline with freeze proof dampproof effect, including it is following
Step:
Step 1, the weld seam of preparation process, i.e. medium pipeline (01), pressure testing, air-tight test is qualified and derusts, brush
Paint, anticorrosive measure finish, and medium pipeline outer surface is made to keep cleaning, drying；
Step 2 successively lays heating structure (1), thermal energy storage conducting shell in the periphery of medium pipeline (01) from the inside to the outside
(2), heat-energy secondary feedback layer (3), insulated enclosure layer (4) and heat preservation cold insulation heat insulating construction (5).
In above-mentioned production method, in step 2, specifically include:
Electric-heating belt (02) is spirally wound on the periphery of medium pipeline (01) as heating structure (1) by step S1；
Step S2, by the web-like mesh sheet as made by one of wire netting, aluminium wire netting, copper mesh, stainless steel cloth with
Half lap platen press is spirally wound on the periphery of medium pipeline (01) and electric-heating belt (02) as thermal energy storage conducting shell (2)；
Step S3, by thermal energy made of the roll bending plate formed one of aluminium foil, polishing stainless steel piece, plating plate
Feedback wafer is spirally wound on the periphery of thermal energy storage conducting shell (2) as heat-energy secondary feedback layer (3) using half lap platen press；
Step S4, will the insulated enclosure band made of high-strength silicone rubber insulating self-adhesive band resistant to high temperature with half lap platen press spiral shell
Rotation is wrapped in the periphery of heat-energy secondary feedback layer (3) as insulated enclosure layer (4)；
Step S5 successively lays functional layer in the periphery of insulated enclosure layer (4) using the same layer fissure of displacement, ectonexine tooled joint mode
(51), damp-proof layer (52) and protective layer (53) are as heat preservation cold insulation heat insulating construction (5).
The beneficial effects of the present invention are: the present invention has the embedded medium pipeline of freeze proof dampproof effect former with comprehensive design
Then, using multi-layer structure design and the same layer fissure of displacement, the technique system of laying of the superinsulation of interlayer tooled joint, electric-heating belt is solved
Electrical isolation and sealing problem in embedded underground, while utilizing the technical office of thermal energy storage conducting shell and heat-energy secondary feedback layer
Reason mode increases substantially the thermal efficiency of electric-heating belt, reduces energy consumption, and the original application of further expansion electric-heating belt
The application range of range and the diameter specifications of medium pipeline；The heat preservation cold insulation heat insulating construction covered therewith not only has cold season
The heating of section, heat preservation, antifreeze thermal-insulation function, at the same also with non-cold season do not use electric-heating belt when cold insulation adiabatic work
Can, by the way that damp-proof layer is arranged, avoids and keep the temperature Cold-keeping Layer generation moisture condensation when non-cold season electric-heating belt does not work and reduce exhausted
Hot material thermal insulation property and effect.
Detailed description of the invention
Fig. 1 is the arrangement schematic diagram of existing electric tracing Anti-freezing pipeline；
Fig. 2 is the structural schematic diagram of the embodiment of the embedded medium pipeline of the present invention；
Fig. 3 is the topology example of electric-heating belt；
Fig. 4 A is the schematic diagram of electric-heating belt system of laying one；
Fig. 4 B is the schematic diagram of electric-heating belt system of laying two；
Fig. 4 C is the schematic diagram of electric-heating belt system of laying three；
Fig. 4 D is the schematic diagram of electric-heating belt system of laying four.
Appended drawing reference indicates in figure are as follows:
01- medium pipeline；02- electric-heating belt；03- insulating layer；04- binding strap；
1- heating structure；2- thermal energy storage conducting shell；3- heat-energy secondary feedback layer；4- insulated enclosure layer；
5- keeps the temperature cold insulation heat insulating construction, 51- functional layer, 52- damp-proof layer, 53- protective layer.
Specific embodiment
Insulation performance in order to solve electric-heating belt existing for the existing embedded medium pipeline with heating tape is poor, energy consumption
Greatly, the defects of thermal efficiency is low, construction is inconvenient, the present invention provides a kind of embedded medium pipeline and its system with freeze proof dampproof effect
Make method, which is multilayered structure, and heating structure, thermal energy storage including setting gradually from inside to outside conduct
Layer, heat-energy secondary feedback layer, insulated enclosure layer and heat preservation cold insulation heat insulating construction, using multi-layer structure design and the same layer fissure of displacement,
The system of laying that interlayer tooled joint, insulating layer are inlayed solves electric tracing of the electric-heating belt in embedded underground according to predetermined way
Electrical isolation and sealing problem under winding, while solving electric-heating belt heat concentration using thermal energy storage conducting shell, the service life is low
The problem of, Thermal feedback technology increases substantially answering for the thermal efficiency of electric-heating belt, reduction energy consumption, and further expansion electric-heating belt
With the diameter specifications of range and medium pipeline.
With reference to embodiments and attached drawing, there is embedded medium pipeline and its production side of freeze proof dampproof effect to the present invention
Method is described in detail.
Embedded medium pipeline
Fig. 2 is the topology example of the embedded medium pipeline of the present invention.As shown in Fig. 2, the embedded medium pipeline uses electric tracing
Heat preservation Thermo Isolation Technique with active heating realizes freeze proof moisture-proof purpose, can be embedded in the frost zone of cold wet area, should
In embodiment, the technical measures of medium pipeline are multilayered structure, and heating structure 1, thermal energy including setting gradually from inside to outside store up
Store conducting shell 2, heat-energy secondary feedback layer 3, insulated enclosure layer 4 and heat preservation cold insulation heat insulating construction 5, in which:
Heating structure 1 includes the electric-heating belt 02 being arranged on medium pipeline 01, as shown in figure 3, electric-heating belt is usually
Cross section is in flat Flat belt with multi-layer structure, and this flat structure is relative to parallel lay-up after traditional poling
Tubular structure can increase heat-conduction effect, and heat tracing is high-efficient, and system of laying is flexible, can be by the plane of heating tape according to predetermined
Canoe is close to the laying of medium pipeline surface, saves space, and it is uniform to generate heat.The present invention uses the electric-heating belt of outsourcing,
Type selecting can be determined according to applicable situation, can be automatic temperature-control electric heating belt or invariable power electric-heating belt.Electric-heating belt 02 is sent out
Institute's dispersed heat during 01 pumped (conveying) medium of heat compensation medium pipeline out, to maintain medium temperature in certain range
It is interior, achieve the purpose that heat preservation and it is antifreeze.The system of laying of electric-heating belt 02 can be more electric-heating belt parallel lay-ups (referring to figure
4A), it being uniformly arranged on the surrounding outer wall of medium pipeline 01, this mode is suitable for long range, Large Diameter Pipeline medium pipeline, or
The harder electric-heating belt of material, it is ensured that Homogeneouslly-radiating；Or it is helically wound on medium pipeline 01.Electric-heating belt 02
It is laid on medium pipeline 01 in a spiral manner, the length of the electric-heating belt 02 laid on the medium pipeline 01 of unit length is by electricity
01 self performance of heating power, ambient environmental conditions and medium pipeline of heating tape 02 is (for example, different regions underground temperature
There are larger difference, unlike material and pipe thickness transmission medium pipeline and transmission medium difference all will affect electrically heat tracing
Heating power and electrically heat tracing canoe) it determines.System of laying can be following several: as shown in Figure 4 B, single electric tracing
02 one-way spiral of band is wrapped on medium pipeline 01；As shown in Figure 4 C, single 02 opposite direction of electric-heating belt is spirally wound on medium tube
On road 01, i.e., the both ends of electric-heating belt 02 are first fixed, in a spiral manner by 02 interlude of electric-heating belt (there are scheduled length)
It is wrapped on medium pipeline 01, finally fixes intermediate end；As shown in Figure 4 D, the cross-helicity in the same direction of double joint electric-heating belt 02
It is wrapped on medium pipeline 01.
Conventional electric-heating belt is usually placed between medium pipeline 01 and insulating layer, the heat preservation insulation general heat transfer system of material
Number is very low, and the heat in the face that electric-heating belt 02 is in contact with insulating layer and periphery form idle heat and assemble here, thermal energy
Medium pipeline 01 cannot be effectively passed to, causes thermal energy to waste and (almost 50% thermal losses) is lost, while the contact surface
Due to heat concentration of local, the service life that will cause electric-heating belt 02 is reduced.
To solve the above-mentioned problems, the present invention in, thermal energy storage conducting shell 2 for collect savings electric-heating belt not with medium
The idle heat in face and periphery that pipeline 01 contacts in thermo-conducting manner feeds back to heat through absorption, storage, release for the first time
Medium pipeline 01.Thermal energy storage conducting shell 2 can be made of the higher wire mesh of heat-conductive characteristic, laying package electric tracing
Form porous batt layer after band 02, medium pipeline 01, the setting of this layer on the one hand can make electric-heating belt 02 not with medium pipeline
The even heat release that the face of 01 contact generates, avoids excessively concentration of local from causing the local temperature of electric-heating belt 02 excessively high, makes
At the service life reduction of electric-heating belt 02；On the other hand the idle heat absorption of electric-heating belt generation, storage can uniformly be discharged
Medium pipeline 01 is fed back to, the thermal efficiency of electric-heating belt 02 is improved, so that medium pipeline 01 maintains a temperature above freezing
It spends in range.
According to pipe material, thermal energy storage conducting shell 2 is by appointing in wire netting, aluminium wire netting, copper mesh, stainless steel cloth
One or more combinations are formed by mesh sheet, it is contemplated that cost factor, preferably wire netting, stainless steel cloth, but using stainless
It should ensure that electrochemical reaction must not occur for stainless steel cloth and the material being in contact with it when steel wire.Thermal energy storage conducting shell 2 can
Web-like mesh sheet is made, the periphery for the electric-heating belt 02 that is laid in a manner of spiral winding uses half lap platen press, mesh sheet when winding
The number of plies can be determined according to pipeline specifications, application, generally at least two layers, it is preferred that the net of thermal energy storage conducting shell 2
Piece width 100mm-150mm.The fixed form of silk screen tail portion can be used hoop card identical as silk screen material or wire or have resistance to
The nonmetallic bandage of hot property is fixed, and with the material of joint electrochemical reaction must not occur for the same material.
Heat-energy secondary feedback layer 3 is the one layer of metal sheet band (feedback heat energy piece) for being covered on 2 periphery of thermal energy storage conducting shell,
It is uniformly to wrap up electric-heating belt 02 and thermal energy storage conducting shell 2 and be fixed in medium pipeline (or equipment) that it, which is acted on, simultaneously
The heat that thermal energy storage conducting shell 2 discharges is fed back to medium pipeline in a manner of heat transfer and heat radiation by metal sheet band again
(or equipment), at this point, the idle heat of the heat for the one side that electric-heating belt 02 is not contacted with medium pipeline 01 and periphery passes through heat
The collective effect that conducting shell 2 and heat-energy secondary feedback layer 3 can be saved acts on the heat almost all that electric-heating belt 02 distributes
Medium pipeline 01, greatly improves the thermal efficiency, reduces energy consumption.
Heat-energy secondary feedback layer 3 should carry out after in thermal energy storage conducting shell 2, rationally laying is fixed, can be according to medium pipeline 01
Specification, the mesh sheet material of application and thermal energy storage conducting shell 2, can be by aluminium foil, polishing stainless steel piece, plating plate
One of formed roll bending feedback heat energy piece is made, it is contemplated that cost, preferably web-like feedback heat energy piece made of electroplate are answered
Guarantee that electrochemical reaction does not occur for feedback heat energy piece and the part material being in contact with it.
The feedback heat energy piece of heat-energy secondary feedback layer 3 can be wrapped in thermal energy storage conducting shell 2 with monoblock type roll bending, the roll bending
Periphery, the edge at roll bending closure is laminated into fixation；Or feedback heat energy piece is the hardened structure of two-fold, two roll bendings are combined into cylinder
Shape is wrapped in the periphery of thermal energy storage conducting shell 2, and fixation is laminated at two edges；Preferably, feedback heat energy piece is that width is
The roll bending of 100mm-150mm, is spirally wound on the periphery of thermal energy storage conducting shell 2, and when winding uses half laminated type, guarantees winding
Securely.Hoop card identical as secondary feedback layer or wire can be used in head and the tail fixed form or nonmetallic with heat resistance is tied up
Band is fixed, and with the material of joint electrochemical reaction must not occur for the same material.
Because electric-heating belt 02 is very high to waterproofness and insulating properties requirement, under the protection of non-poling, bright roughing-in is in underground
It when embedded, need to carry out a step and reinforces electric-heating belt insulated enclosure effect, therefore, the insulated enclosure of electric-heating belt is arranged in the present invention
Layer 4.Insulated enclosure layer 4 is the banded structure for being wrapped in 3 periphery of heat-energy secondary feedback layer, such as insulated enclosure band, further plus
The strong primary insulation effect of electric-heating belt itself, plays the role of the protection of electric-heating belt poling, which can be by
High-strength silicone rubber insulating self-adhesive band resistant to high temperature is made.Preferably, the bandwidth of the insulated enclosure band is 100mm-150mm, spiral shell
Rotation is wrapped in 3 periphery of heat-energy secondary feedback layer, and winding uses half lap platen press, the surface of cleaning heat-energy secondary feedback layer 3 before winding,
And high-strength silicone rubber band longitudinal stretching is compacted in winding, is guaranteed so that insulated enclosure bandwidth is the 3/4 of former width
Sealing effect.
In order to which the heat for preventing electric-heating belt from generating distributes outside ambient bad border, insulating layer need to be equipped with.For being embedded in ground
Under (especially in the frost zone of cold wet area) for it is antifreeze be purpose medium pipeline, common insulating layer no longer be applicable in,
This layer will not only consider the heating, heat preservation, antifreeze thermal-insulation function of cold season, while being also contemplated that non-cold season and not using
When electric-heating belt 02, flow media temperature is lower than the cold insulation adiabatic operation state of environment temperature in pipeline, needs in the present invention
The periphery laying of insulated enclosure layer 4 has both antifreeze and heat preservation double effects heat preservation cold insulation heat insulating constructions 5, in non-cold season
When section is without using electric-heating belt heating, the effect of preventing medium pipeline (or equipment) surface from generating moisture condensation, reduce heat preservation cold insulation.It will
Original whole year electric tracing heating method is changed to cold season heating method, the non-idle pattern of cold season electric tracing, thus
Greatly reduce electric-heating belt energy consumption.
In the present invention, heat preservation cold insulation heat insulating construction 5 is multi-layer compound structure, including the functional layer set gradually from inside to outside
51, damp-proof layer 52 and protective layer 53, conventional insulating layer do not set moisture-proof construction, so that electric-heating belt work is not used in non-cold season
When making, pipeline internal medium temperature is lower than ambient temperature, and insulating layer outer surface generates dew and penetrates into insulating layer, due to temperature
Spend relatively low, air penetrates into Cold-keeping Layer, will be less than the dew-point temperature of air after air is cooling, the moisture in air is caused to be condensed
Substantially reduce the effect of cold insulation due to the entrance of moisture at water even ice, while thermal insulation material dampness is loose also to heat preservation
Effect has a significant impact.The effect for reducing insulating layer takes into account consideration and deactivates electricity companion when design under the premise of guaranteeing heat insulation effect
Cold insulation effect under hot working selects existing heat insulation effect to take into account the material of cold insulation effect again, keeps the temperature cold insulation heat insulating construction 5
Damp-proof layer 52 is arranged in external in functional layer 51；In addition, heat preservation cold insulation heat insulating construction 5 there should be certain intensity, should not be self-possessed
Or accidentally external force and destroy, reinforcement measure should be taken, for this purpose, protective layer is arranged in the external of damp-proof layer 52 in the present invention
53。
Heat preservation cold insulation heat insulating construction 5 material, thickness and structure should be required according to application (including medium heat-preserving, guarantor
Cold requirement and performance requirement and the material capability of medium pipeline etc.) and the power of electric-heating belt 02 determine, keep the temperature cold insulation
Heat insulating construction 5 should be divided into multilayer construction, construct for example, the present invention is divided into 1-3 layers.According to actual measurement, gap radiation and convection current
Caused heat loss is several times to tens times that heat preservation is well located, therefore when construction, and the heat preservation laying of cold insulation heat insulating construction 5 should use
Same layer is inlayed, and the multilayer fissure of displacement, ectonexine tooled joint mode are laid.
In one embodiment, functional layer 51 can be made of water-proof rock wool pipe, mineral wool cartridge or polyurethane foam band, waterproof rock
Cotton pipe or mineral wool cartridge have moisture-proof, heat preservation, are insulated every the performances such as cold, have certain chemical stability, even if in moist feelings
Being used for a long time under condition will not deliquesce, which is non-automatic incombustible material, and to the corrosion-free effect of equipment, particularly suitable hair
The requirement of bright application；Damp-proof layer 52 can be added by emulsified asphalt, water-proof cold adhesive glass wool cloth waterproof roll or emulsified asphalt,
Water-proof cold adhesive adds EPDM rubber waterproof rolling material to be made, and generallys use the thickness that least favorable Environment Design principle designs this layer
Degree；Protective layer 53 can protect heat preservation cold insulation heat insulating construction 5 not to be damaged, and prevent moisture from immersing, protective layer material requires anti-
The advantages that water, fire prevention, good chemical property, can be protective layer (such as pvc pipe shell or the glass reinforced plastic of metal or plastic material
Thin plate), plastering one of protective layer or felt, foil, dry goods protective layer or a variety of combinations.Protective layer 53 is preferably wrapped around method and applies
Work, using the method that laminates when winding, general lap is the one third of 53 width of protective layer to half, and when winding will
Functional layer 51 and damp-proof layer 52 are wrapped, and are not allow for loosening, flange, gauffer and bubbling phenomenon, beginning and end are pricked with iron wire
Jail.For example, when smearing asbestos cement protective layer, it should be in coarse 52 surface construction of damp-proof layer, to improve the attachment of two kinds of materials
Power.
There is the present invention the embedded medium pipeline of above structure to carry out freeze proof insulation using electric-heating belt active heating method
Processing, suitable for buried pipeline of the longtime running in the frost zone of cold wet area.The medium pipeline 01 is by outside pipeline
Zhou Heli lays electric-heating belt 02 and forms heating structure 1；The periphery of electric-heating belt 02 and medium pipeline 01 is laid thermal energy storage and is passed
The porous mesh sheet of conducting shell 2, by 02 lateral surface of electric-heating belt (one side not contacted with medium pipeline) and its idle heat on periphery
Amount collects, saves and uniformly discharge, and the heat of collection is fed back to medium pipeline 01 by heat exchange pattern；Heat-energy secondary feedback
The metal sheet band of layer 3 is laid in the surrounding of thermal energy storage conducting shell 2, by the mesh sheet of electric-heating belt 02 and thermal energy storage conducting shell 2
It wraps up and is fixed on medium pipeline 01, the heat for being discharged thermal energy storage conducting shell 2 using metal sheet band is with heat transfer and heat
The mode of radiation feeds back to medium pipeline 01 again, improves the thermal efficiency of electric-heating belt 02, reduces energy consumption；Insulated enclosure layer 4
It is made, is wrapped on heat-energy secondary feedback layer 3, as electric-heating belt of high-strength silicone rubber insulating self-adhesive band resistant to high temperature
02 secondary insulating seals waterproof layer；Heat preservation cold insulation heat insulating construction 5 is in outermost layer, not only the heating with cold season, guarantor
Warm, antifreeze thermal-insulation function does not use cold insulation thermal-insulation function when electric-heating belt 02 also with non-cold season, anti-by being arranged
Damp layer avoids functional layer 51 when non-cold season electric-heating belt 02 does not work and generates moisture condensation, reduces insulation effect.Present invention tool
There is the embedded medium pipeline of freeze proof dampproof effect with integrated philosophy of design, is inlayed using multi-layer structure design and same layer, it is more
The system of laying of fault seam, interlayer tooled joint solves electrical isolation and sealing problem of the electric-heating belt 02 in embedded underground, while benefit
The thermal effect of electric-heating belt is increased substantially with the soaking of thermal energy storage conducting shell 2 and heat-energy secondary feedback layer 3 and Thermal feedback technology
Rate reduces energy consumption, and the diameter specifications of the application range of further expansion electric-heating belt and medium pipeline.
Method
The present invention also provides a kind of production method of above-mentioned embedded medium pipeline with freeze proof dampproof effect, this method packets
Include following steps:
Step 1, preparation process, the i.e. weld seam of medium pipeline, pressure testing, air-tight test qualification and derusting, are prevented mopping
Corrosion measure finishes, and medium pipeline outer surface is made to keep cleaning, drying；
Step 2 successively lays heating structure 1, thermal energy storage conducting shell 2, heat in the periphery of medium pipeline 01 from the inside to the outside
It can secondary feedback layer 3, insulated enclosure layer 4 and heat preservation cold insulation heat insulating construction 5.
In step 2, specific steps include:
The periphery laying electric-heating belt 02 of step S1, medium pipeline 01 are used as heating structure 1.
Preferably, 02 spiral of electric-heating belt is laid in the periphery of medium pipeline 01, the i.e. unidirectional spiral shell of single electric-heating belt (02)
Rotation is wrapped on medium pipeline (01) (B referring to fig. 4)；Or single electric-heating belt (02) opposite direction is spirally wound on medium pipeline 01
(C referring to fig. 4)；Or cross-helicity is wrapped on medium pipeline (01) (D referring to fig. 4) double joint electric-heating belt (02) in the same direction.
Step S2, thermal energy storage conducting shell 2 are laid in the periphery of medium pipeline 01 and electric-heating belt 02.
Specifically, thermal energy storage conducting shell 2 be by any one of wire netting, aluminium wire netting, copper mesh, stainless steel cloth or
A variety of combinations is formed by web-like mesh sheet, the periphery for the electric-heating belt 02 that is laid in a manner of spiral winding, and when winding uses
Half lap platen press.
Step S3, heat-energy secondary feedback layer 3 include the feedback heat energy piece for being covered on 2 periphery of thermal energy storage conducting shell, will be electric
Heating tape 02 and thermal energy storage conducting shell 2 are uniformly wrapped up and are fixed in medium pipeline (or equipment).
Specifically, the feedback heat energy piece of heat-energy secondary feedback layer 3 is by aluminium foil, polishing stainless steel piece, plating plate
A kind of roll bending of formation is made；The feedback heat energy piece of heat-energy secondary feedback layer 3 is monoblock type roll bending, which is wrapped in thermal energy storage
The periphery for storing conducting shell 2, laminates fixation for the edge at roll bending closure；Or feedback heat energy piece is the hardened structure of two-fold, two roll bendings
It is combined into cylindrical shape and is wrapped in the periphery of thermal energy storage conducting shell 2, and laminate fixation at two edges；Preferably, feedback heat energy piece
The roll bending for being 100mm-150mm for width, is spirally wound on the periphery of thermal energy storage conducting shell 2, and when winding uses half laminated type.
Insulated enclosure layer 4 is wrapped in 3 periphery of heat-energy secondary feedback layer by step S4.
Specifically, insulated enclosure layer 4 is that the banded structure made of high-strength silicone rubber insulating self-adhesive band resistant to high temperature is (exhausted
Edge band), which is spirally wound on 3 periphery of heat-energy secondary feedback layer, and winding uses half lap platen press, clear before winding
The surface of clean heat-energy secondary feedback layer 3, and by high-strength silicone rubber band longitudinal stretching, so that the insulated enclosure bandwidth is former wide
The 3/4 of degree is compacted in winding.
Step S5 will keep the temperature cold insulation heat insulating construction 5 and be laid in the periphery of insulated enclosure layer 4.
Specifically, heat preservation cold insulation heat insulating construction 5 is multi-layer compound structure, including the functional layer set gradually from inside to outside
51, damp-proof layer 52 and protective layer 53, the heat preservation laying of cold insulation heat insulating construction 5 are laid using the same layer fissure of displacement, ectonexine tooled joint mode.
It will be appreciated by those skilled in the art that these embodiments are merely to illustrate the present invention without limiting model of the invention
It encloses, the various equivalent variations and modification made to the present invention belong to the disclosure of invention.
Claims (10)
1. a kind of embedded medium pipeline with freeze proof dampproof effect is electric tracing medium pipeline with multi-layer structure, is suitable for
It is embedded in the frost zone of cold wet area, which is characterized in that including at least one medium pipeline (01) and the medium pipeline
Heating structure (1) that periphery is set gradually from inside to outside, thermal energy storage conducting shell (2), heat-energy secondary feedback layer (3), insulation are close
Sealing (4) and heat preservation cold insulation heat insulating construction (5), the heating structure (1) is the electric-heating belt being arranged on medium pipeline (01)
(02), heat preservation cold insulation heat insulating construction (5) is multi-layer compound structure, including being set gradually from inside to outside for keeping the temperature and cold insulation
Functional layer (51), with cold insulation and the damp-proof layer (52) for preventing moisture condensation and protective layer (53) with waterproofing reinforcement effect.
2. the embedded medium pipeline according to claim 1 with freeze proof dampproof effect, which is characterized in that the thermal energy storage
It stores conducting shell (2) to be made of wire mesh, the electric-heating belt that is laid in (02), medium pipeline (01) periphery form porous cotton-shaped
Layer.
3. the embedded medium pipeline according to claim 2 with freeze proof dampproof effect, which is characterized in that the thermal energy storage
Storing conducting shell (2) is to be formed by by any one or more of combination of wire netting, aluminium wire netting, copper mesh, stainless steel cloth
Mesh sheet, and electrochemical reaction, netting width 100mm-150mm do not occur for the mesh sheet and the material being in contact with it.
4. the embedded medium pipeline according to any one of claims 1 to 3 with freeze proof dampproof effect, which is characterized in that
The thermal energy storage conducting shell (2) is spirally wound on electric-heating belt at least provided with two layers for web-like mesh sheet with half lap platen press
(02) and the periphery of medium pipeline (01).
5. the embedded medium pipeline according to any one of claims 1 to 4 with freeze proof dampproof effect, which is characterized in that
The heat-energy secondary feedback layer (3) includes one layer of metal sheet band for being covered on thermal energy storage conducting shell (2) periphery, the metal sheet band
For feedback heat energy piece made of the roll bending that is formed aluminium foil, polishing stainless steel piece, plating one of plate.
6. the embedded medium pipeline according to claim 5 with freeze proof dampproof effect, which is characterized in that the thermal energy two
The feedback heat energy piece of secondary feedback layer (3) is monoblock type roll bending, which is wrapped in the periphery of thermal energy storage conducting shell (2), and closes
Edge at conjunction laminates fixation；Or the feedback heat energy piece of the heat-energy secondary feedback layer (3) is the hardened structure of two-fold, two roll bending groups
Synthesis cylindrical shape is wrapped in the periphery of thermal energy storage conducting shell (2), and fixation is laminated at two edges.
7. the embedded medium pipeline according to any one of claims 1 to 6 with freeze proof dampproof effect, which is characterized in that
The insulated enclosure layer (4) is the banded structure for being wrapped in heat-energy secondary feedback layer (3) periphery, and the insulated enclosure layer is by high temperature resistant
High-strength silicone rubber insulating self-adhesive band be made.
8. the embedded medium pipeline according to any one of claims 1 to 7 with freeze proof dampproof effect, which is characterized in that
The functional layer (51) is made of water-proof rock wool pipe, mineral wool cartridge or polyurethane foam band, and damp-proof layer (52) is by emulsified asphalt, anti-
Water cooling sizing material adds glass wool cloth waterproof roll or emulsified asphalt, water-proof cold adhesive that EPDM rubber waterproof rolling material is added to be made, and protects
Sheath (53) is the protective layer of metal or plastic material, plastering one of protective layer or felt, foil, dry goods protective layer or a variety of
Combination.
9. a kind of production method of the described in any item embedded medium pipelines with freeze proof dampproof effect of claim 1 to 8, packet
Include following steps:
Step 1, weld seam, pressure testing, air-tight test qualification and the derusting of preparation process, i.e. medium pipeline (01), are prevented mopping
Corrosion measure finishes, and medium pipeline outer surface is made to keep cleaning, drying；
Step 2, the periphery of medium pipeline (01) from the inside to the outside successively lay heating structure (1), thermal energy storage conducting shell (2),
Heat-energy secondary feedback layer (3), insulated enclosure layer (4) and heat preservation cold insulation heat insulating construction (5).
10. manufacturing method according to claim 9, which is characterized in that in step 2, specifically include:
Electric-heating belt (02) is spirally wound on the periphery of medium pipeline (01) as heating structure (1) by step S1；
Step S2, by the web-like mesh sheet as made by one of wire netting, aluminium wire netting, copper mesh, stainless steel cloth with half lap
Platen press is spirally wound on the periphery of medium pipeline (01) and electric-heating belt (02) as thermal energy storage conducting shell (2)；
Step S3, by feedback heat energy made of the roll bending plate formed one of aluminium foil, polishing stainless steel piece, plating plate
Piece is spirally wound on the periphery of thermal energy storage conducting shell (2) as heat-energy secondary feedback layer (3) using half lap platen press；
Step S4 twines the insulated enclosure band made of high-strength silicone rubber insulating self-adhesive band resistant to high temperature with half lap platen press spiral
The periphery of heat-energy secondary feedback layer (3) is wound on as insulated enclosure layer (4)；
Step S5 successively lays functional layer in the periphery of insulated enclosure layer (4) using the same layer fissure of displacement, ectonexine tooled joint mode
(51), damp-proof layer (52) and protective layer (53) are as heat preservation cold insulation heat insulating construction (5).
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| CN201910405989.7A CN110067911A (en) | 2019-05-16 | 2019-05-16 | Embedded medium pipeline and preparation method thereof with freeze proof dampproof effect |
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Cited By (1)
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