CN208123646U - A kind of composite anti-corrosive inner sliding type directly buried installation steam insulation pipe - Google Patents
A kind of composite anti-corrosive inner sliding type directly buried installation steam insulation pipe Download PDFInfo
- Publication number
- CN208123646U CN208123646U CN201820240191.2U CN201820240191U CN208123646U CN 208123646 U CN208123646 U CN 208123646U CN 201820240191 U CN201820240191 U CN 201820240191U CN 208123646 U CN208123646 U CN 208123646U
- Authority
- CN
- China
- Prior art keywords
- layer
- pipe
- steam
- sliding type
- inner sliding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Thermal Insulation (AREA)
Abstract
The utility model discloses a kind of composite anti-corrosive inner sliding type directly buried installation steam insulation pipes, it is related to steam insulation Manifold technology field, structure includes the steam pipe for conveying steam, the side outer wall of steam pipe is provided with the thermal insulation layer of single-layer or multi-layer, insulating layer is provided on the outside of thermal insulation layer, steel casing is arranged with outside insulating layer, outside of sleeve is provided with froth bed, is provided with waterproof casings pipe on the outside of froth bed.By the cooperation of thermal insulation layer and insulating layer, the diameter of steel casing is reduced, steel product cost has been saved, space needed for reducing underground.Waterproof casings pipe intensity is high and not perishable, can quickly volatilize when liquid enters and encounters the steel casing of high temperature, anti-corrosion ability is strong, and due to not needing additional anti-corrosion material, anti-corrosion cost is also reduced.Make the heat loss of steam insulation pipe smaller using the structure of inner sliding type, and then also not easily damaged outside steam pipe, whole the service life is longer, and maintenance and replacement number are less.
Description
Technical field
The utility model relates to steam insulation pipe art fields, more specifically, it relates to a kind of composite anti-corrosive inner sliding type
Directly buried installation steam insulation pipe.
Background technique
Directly buried installation steam insulation pipe has had more than 20 years history, and pattern is：Steam pipe is externally provided with insulating layer, protects
It is arranged with steel sleeve pipe outside warm layer, this so-called steel sleeve steel insulating tube has become fixed pattern.Directly buried installation is exactly by steam insulation
Pipe is directly embedded in soil layer, and the lay length of steam insulation pipe is usually in several kilometers, more than ten kilometers, even tens kilometers long, pipe
In jointed underground between pipe, docking location is pipe joint, and number of tubes is more and the scale of construction is big, very heavy.
Steel sleeve pipe available good preservative treatment in production plant on the outside of conventional insulating steam pipe, but in length
In the transportational process of way, due to will lead to outside steel in the hanging and hanging discharge working environment severe with dilatory collision and construction site
The erosion resistant coating for covering surface is impaired, and it is barely satisfactory to eventually lead to anti-corrosion effect, for most soil layer regions, thin solum tide
It is wet, air and moisture are included, partial region soil can even contain apparent salinity, simultaneously as live interface operation environment is very
Difference, so that easily becoming the position of anti-corrosion defence line collapse at pipe joint.And one ten kilometers of pipe network needs more than 1,000
Interface, thus it is extremely difficult reliably to implement steel pipe corrosion-proof to pipe joint.
In directly buried installation steam insulation pipe instantly, heat preservation layer material is largely made using blanket of glass wool.Blanket of glass wool attachment
On steam steel pipe, when blanket of glass wool and steam pipe slide on conduit axis direction relative to steel sleeve pipe, this is i.e. so-called
Outer slidingtype insulating tube and most common mode.Steam pipe temperature is even higher up to 300 DEG C.Due to keeping the temperature blanket phase
To fragility, chance water can deform, go bad, collapsing even disappears, and brittle at powder in the at a temperature of i.e. meeting close to 300 DEG C, this is affected
Instantly the service life of steam pipe, while blanket of glass wool is expanded with heat and contract with cold by steam pipe and is influenced, and is continually opened and is compressed, by
It gradually forms heat-insulatied slit and even keeps the temperature vacancy, influence the heat preservation quality of steam pipe.
By the technical standard of product, directly buried installation steam insulation pipe should be on active service 25 years or more, and status direct-burried steam insulation
It is minority that the service life of pipe, which is more than 10 years, reaches 20 years or more even more rarenesses, to find out its cause, since steel sleeve pipe is shown out
Portion, anti-corrosion are short slabs therein, in addition, outer slidingtype insulating tube can not accomplish that the pipeline network construction phase guarantees that pipe insulating layer is absolute
Waterproof, heat preservation blanket is easy to be impregnated in insulating process, this affects the service life of steam pipe.
Utility model content
, heat preservation of poor quality, anti-corrosion ability short, at high cost for prior art China and foreign countries slidingtype steam insulation pipe service life
Low problem, the utility model aim are to provide a kind of composite anti-corrosive inner sliding type directly buried installation steam insulation pipe, have
Heat insulation effect is good, long service life, overall cost is low, carries the advantages of anti-corrosion function.
To achieve the above object, the utility model provides following technical solution：
A kind of composite anti-corrosive inner sliding type directly buried installation steam insulation pipe, it is described including the steam pipe for conveying steam
The side outer wall of steam pipe is provided with the thermal insulation layer of single-layer or multi-layer, is provided with insulating layer, the heat preservation on the outside of the thermal insulation layer
Layer is outer to be arranged with steel casing, and froth bed is provided on the outside of described sleeve pipe, is provided with waterproof casings pipe on the outside of the froth bed.
Through the above technical solutions, the heat resistance of thermal insulation layer is more preferable, but considers its cost reason, can match with insulating layer
It closes and uses, so that the diameter of steel casing is smaller, by suitably increasing froth bed thickness, reduce the thickness of corresponding steel casing,
The cost of steel is finally saved, while the overall dimensions of steam insulation pipe are also smaller, has reduced it in originally crowded underground
Space needed for itself.Waterproof casings pipe intensity is high, wear-resistant, not cracky and leak, also not perishable, while inside is again
There is the protection of steel casing, can quickly volatilize liquid penetrates into and encounters the steel casing for bearing high temperature, thus steams
Vapour insulating tube itself just has multi-layer anticorrosion effect, and self-protection ability is strong, it is no longer necessary to specially smear anti-corrosion material, anti-corrosion at
This is equally also reduced.Make the structural strength of steam insulation pipe itself more preferable using the structure of inner sliding type, and then outside steam pipe
Portion is not also easily damaged, and whole the service life is longer, and maintenance and replacement number are less.
Further, air layer, the steam pipe and the steel are additionally provided between the steam pipe and the thermal insulation layer
Splice between casing processed in the both ends of the thermal insulation layer and is provided with the heat-preserving load-bearing watt of single-layer or multi-layer.
Through the above technical solutions, the heat-preserving load-bearing watt at steam pipe both ends plays a supporting role to thermal insulation layer, so that air
Layer is able to maintain that.
Further, the side of the steam pipe towards the air layer is provided with the heat-insulated internal layer of Low emissivity, described heat-insulated
Layer is provided with outer reflective layer towards the side of the air layer.
Through the above technical solutions, three kinds of modes of heat transfer include thermally conductive, convection current and heat radiation, and Low emissivity is heat-insulated
Internal layer and outer reflective layer can reduce radiation heat transfer, and then reduce the thermal loss in steam pipe operational process.
Further, the both ends of the steel casing are provided with the waterproof end ring for being clamped the heat-preserving load-bearing watt,
The both ends of the waterproof casings pipe are clamped the waterproof end seal being arranged with for sealing the froth bed.
Through the above technical solutions, waterproof end ring is directly welded with steel casing, waterproof end ring can be by heat-preserving load-bearing watt
It is effectively fixed, prevent its shaking, waterproof end seal plays protective effect, prevent froth bed oxidation during transportation and by
Tide.
Further, prolong in the direction that the waterproof end ring is laterally away from the heat-preserving load-bearing watt close to the one of the steam pipe
It stretches and is provided with flange, the flange outer sides are arranged with waterproof jacket.
Through the above technical solutions, waterproof jacket is stuck on flange, so that the gap between waterproof end ring and steam pipe can
Effectively to cover, while when insulating tube puts into operation, waterproof jacket is by heated thawing.
Further, the froth bed includes internal layer and outer layer, and the internal layer is in the steel casing and the outer layer
Between, the outer layer is between the internal layer and the waterproof casings pipe.
Through the above technical solutions, froth bed uses dual material, the thickness of single material is reduced, and then also reduce
The diameter of steam insulation pipe.
Further, the temperature of the thermal insulation layer is at 240 DEG C~310 DEG C, and the temperature of the insulating layer is 140 DEG C~260
DEG C, the temperature of the steel casing is at 140 DEG C~150 DEG C, and the temperature of the internal layer is at 90 DEG C~160 DEG C, the temperature of the outer layer
Degree is at 40 DEG C~110 DEG C, and the temperature of the waterproof casings pipe is at 40 DEG C~60 DEG C.
Through the above technical solutions, thermal insulation layer and insulating layer guarantee the temperature controlling range of steel casing within 150 DEG C,
Internal layer and outer layer guarantee the temperature controlling range of waterproof casings pipe at 50 DEG C or so.
Further, the thermal insulation layer is microporous calcium silicate watt, alumina silicate blanket or nanoporous aerogel, the insulating layer
For blanket of glass wool, the internal layer is High-temperature-respolyurethane polyurethane foam, and the outer layer is hard polyurethane foams.
Through the above technical solutions, using different heat preservations, anti-corrosion, barrier material for different service conditions.
Further, the waterproof end seal and the waterproof jacket are polyethylene, and the waterproof casings pipe is poly- for high density
Ethylene, the heat-insulated internal layer of Low emissivity and the outer reflective layer are aluminium foil, have been filled with inert gas in the air layer.
Compared with prior art, the beneficial effects of the utility model are as follows：
（1）Thermal insulation：Compared with prior art, the heat resistance of thermal insulation layer is more preferable, and insulating layer more effectively reduces the damage of heat
It loses, froth bed equally plays more preferably heat-blocking action, while making steam pipe itself service life more using the structure of inner sliding type
Long, appearance is not easily damaged, and heat loss rate substantially reduces；
（2）Anti-corrosive properties：Multilayered structure makes steam pipe and steel casing inherently be not easy to touch corrosive liquid, even if liquid
Body, which is penetrated into and encountered, to be born the steel casing of high temperature and also can quickly volatilize, in addition waterproof casings pipe self-strength is high, thus
Steam insulation pipe itself just has multi-layer anticorrosion ability；
（3）Safety：Be provided with the thermal insulation structure of multilayer outside steam pipe, waterproof casings pipe intensity is high, it is wear-resistant,
Not cracky and leak, also not perishable, while there is the protection of steel casing in inside again, ensure that using the structure of inner sliding type
The waterproof and dampproof end seal of steam insulation pipe can be from removing.Avoid the wind that the outer slidingtype insulating tube of tradition removes waterproof end seal
Danger, and then also not easily damaged outside steam pipe, whole the service life is longer, and maintenance and replacement number are less, using more pacifying
Entirely；
（4）Cost：The temperature conditions in steam pipe practical application is investigated, by being used cooperatively for thermal insulation layer and insulating layer,
The diameter for reducing steel casing reduces the cost of steel casing, and the setting of itself multilayered structure is so that its anti-corrosion ability mentions
No longer need specially to smear anti-corrosion material after rising, anti-corrosion cost equally also reduces.
Detailed description of the invention
Fig. 1 is a kind of main sectional view of composite anti-corrosive inner sliding type directly buried installation steam insulation pipe；
Fig. 2 is a kind of sectional view of composite anti-corrosive inner sliding type directly buried installation steam insulation pipe.
Appended drawing reference：1, steam pipe；2, thermal insulation layer；3, insulating layer；4, steel casing；5, froth bed；6, waterproof casings pipe；
7, air layer；8, heat-preserving load-bearing watt；9, the heat-insulated internal layer of Low emissivity；10, outer reflective layer；11, waterproof end ring；12, waterproof end seal；
13, flange；14, waterproof jacket；15, internal layer；16, outer layer.
Specific embodiment
In order to keep the purpose of this utility model, technical scheme and beneficial effects clearer, below with reference to embodiment and attached
The utility model is described in further detail for figure, but the embodiments of the present invention is not limited only to this.
Embodiment one
A kind of composite anti-corrosive inner sliding type directly buried installation steam insulation pipe, as shown in Figure 1, including the steaming for conveying steam
Steam pipe 1, the side outer wall cladding of steam pipe 1 are provided with the thermal insulation layer 2 of single-layer or multi-layer, are arranged between steam pipe 1 and thermal insulation layer 2
There is air layer 7, insulating layer 3 is provided on the outside of thermal insulation layer 2, is arranged with steel casing 4 outside insulating layer 3, outside of sleeve is provided with bubble
Foam layer 5 is provided with waterproof casings pipe 6 on the outside of froth bed 5, wherein froth bed 5 includes internal layer 15 and outer layer 16, and internal layer 15 is in
Between steel casing 4 and outer layer 16, outer layer 16 is between internal layer 15 and waterproof casings pipe 6.Froth bed 5 uses dual material,
Multilayer is arranged so that the heat-insulation and heat-preservation and anti-corrosion effect of steam insulation pipe are more outstanding, reduces material cost, improves heat preservation
Performance, and then also reduce the diameter of steam insulation pipe, save the cost while, make the sky of its occupancy needed for crowded underground
Between it is smaller, internal layer 15 and outer layer 16 guarantee the temperature controlling range of waterproof casings pipe 6 at 50 DEG C or so.
The length of steam pipe 1 is greater than the length of steel casing 4, and the length of steel casing 4 is greater than the length of waterproof casings pipe 6
Degree.Steam pipe 1 and steel casing 4 are steel-tube construction, and thermal insulation layer 2 is microporous calcium silicate watt, alumina silicate blanket or nanometer gas
Gel, insulating layer 3 are blanket of glass wool, and internal layer 15 is High-temperature-respolyurethane polyurethane foam, and outer layer 16 is hard polyurethane foams, outside waterproof
Casing 6 is high density polyethylene (HDPE).For different heat preservation demands using the combination of materials collocation of tolerance different temperatures.
When 1 bearing temperature of steam pipe reaches 300 DEG C, the silicon carbide of air layer 7 is also close to 300 DEG C, since heat passes
The three kinds of modes passed include thermally conductive, convection current and heat radiation, and it is heat-insulated that the side of steam pipe 1 towards air layer 7 is provided with Low emissivity
Internal layer 9 is provided with outer reflective layer 10 in the side of thermal insulation layer 2 towards air layer 7.Pass through the heat-insulated internal layer 9 of Low emissivity and external reflectance
Layer 10 can reduce radiation heat transfer, and then reduce the thermal loss in 1 transportational process of steam pipe.The heat-insulated internal layer of Low emissivity 9 and outer
Reflecting layer 10 is aluminium foil, wherein inert gas has been filled in air layer 7, inert gas is helium, argon gas etc..Steam
Splice between pipe 1 and steel casing 4 in the both ends of thermal insulation layer 2 and is provided with the heat-preserving load-bearing watt 8 of single-layer or multi-layer, heat-preserving load-bearing
Watts 8 play a supporting role to steel casing 4 around splicing, maintain the thickness of air layer 7,7 thickness of air layer is in 3mm or so.
During the work of steam insulation pipe, the temperature of steam pipe 1 at 300 DEG C or so, the temperature of thermal insulation layer 2 240 DEG C~
310 DEG C, the temperature of insulating layer 3 is at 140 DEG C~260 DEG C, and the temperature of steel casing 4 is at 140 DEG C~150 DEG C, the temperature of internal layer 15
At 90 DEG C~160 DEG C, the temperature of outer layer 16 is at 40 DEG C~110 DEG C, and the temperature of waterproof casings pipe 6 is at 40 DEG C~60 DEG C.Thermal insulation layer 2
For temperature controlling range with the guarantee steel casing 4 of insulating layer 3 within 150 DEG C, internal layer 15 and outer layer 16 guarantee waterproof casings pipe 6
Temperature controlling range at 50 DEG C or so.
As shown in Fig. 2, the both ends of steel casing 4 are welded with the waterproof end ring 11 for being clamped heat-preserving load-bearing watt 8,
The both ends of waterproof casings pipe 6 are clamped the waterproof end seal 12 being arranged with for sealing froth bed 5, and waterproof end seal 12 is annular in shape,
Collar wall is buckled in 6 outer wall of waterproof casings pipe, and inner ring wall is buckled in 4 outer wall of steel casing.It can will be kept the temperature by waterproof end ring 11
Load bearing tile 8 is effectively fixed, and waterproof end seal 12 can prevent the oxidation and dampness of froth bed 5 during transportation, play a protective role.
The direction that waterproof end ring 11 is laterally away from heat-preserving load-bearing watt 8 close to the one of steam pipe 1 is integrally fixed with flange 13, and flange 13 is in ring
Shape, 13 outer sheath of flange are equipped with waterproof jacket 14, and waterproof jacket 14 is annular in shape, and collar wall is buckled in 4 outer wall of steel casing, inner ring wall
It is buckled in 1 outer wall of steam pipe.Waterproof jacket 14 is stuck on flange 13, so that the gap between waterproof end ring 11 and steam pipe 1 can be with
Effectively masking.Waterproof end seal 12 and waterproof jacket 14 are polythene material.
The beneficial effects of the utility model are as follows：
By the mutual cooperation of thermal insulation layer 2, insulating layer 3 and froth bed 5, heat-resist, the guarantor of thermal insulation layer 2 are taken full advantage of
The feature that warm layer 3 is insulated good at low cost, the waterproof and dampproof heat-insulating property of froth bed 5 more preferably and production is simple, in conjunction with Material Cost
And use environment, reduce the diameter of steel casing 4 and waterproof casings pipe 6 to the greatest extent, finally save the cost of steel,
The overall dimensions of steam insulation pipe are also smaller simultaneously, reduce its space occupied needed for underground.
6 intensity of waterproof casings pipe is high, wear-resistant, not cracky and leak, also not perishable, while there is steel set in inside again
The second layer of pipe 4 is protected, even if liquid penetrates into, also can quickly be volatilized when encountering the steel casing 4 for bearing high temperature, thus is steamed
Vapour insulating tube itself just has multi-layer anticorrosion effect, and self-protection ability is strong, it is no longer necessary to specially smear anti-corrosion material, anti-corrosion at
This is equally also reduced.
Make the structural strength of steam insulation pipe itself more preferable using the structure of inner sliding type, more pacifies in use process
Entirely, and then also not easily damaged outside steam pipe 1, heat loss rate is smaller, and heat insulation effect is more preferable, and maintenance and replacement number are less, whole
The service life is longer for body, it can also be matched quite with the service life of steam pipe 1 at this time, and utilization rate is higher.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to
Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to
Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and
Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (9)
1. a kind of composite anti-corrosive inner sliding type directly buried installation steam insulation pipe, which is characterized in that including the steaming for conveying steam
Steam pipe（1）, the steam pipe（1）Side outer wall be provided with the thermal insulation layer of single-layer or multi-layer（2）, the thermal insulation layer（2）Outside
It is provided with insulating layer（3）, the insulating layer（3）It is arranged with steel casing outside（4）, described sleeve pipe outside is provided with froth bed（5）,
The froth bed（5）Outside is provided with waterproof casings pipe（6）.
2. composite anti-corrosive inner sliding type directly buried installation steam insulation pipe according to claim 1, which is characterized in that the steaming
Steam pipe（1）With the thermal insulation layer（2）Between be additionally provided with air layer（7）, the steam pipe（1）With the steel casing（4）It
Between in the thermal insulation layer（2）Both ends splice the heat-preserving load-bearing watt for being provided with single-layer or multi-layer（8）.
3. composite anti-corrosive inner sliding type directly buried installation steam insulation pipe according to claim 2, which is characterized in that the steaming
Steam pipe（1）Towards the air layer（7）Side be provided with the heat-insulated internal layer of Low emissivity（9）, the thermal insulation layer（2）Towards the sky
Gas-bearing formation（7）Side be provided with outer reflective layer（10）.
4. composite anti-corrosive inner sliding type directly buried installation steam insulation pipe according to claim 3, which is characterized in that the steel
Casing processed（4）Both ends be provided with for being clamped the heat-preserving load-bearing watt（8）Waterproof end ring（11）, the waterproof casings pipe
（6）Both ends be clamped and be arranged with for sealing the froth bed（5）Waterproof end seal（12）.
5. composite anti-corrosive inner sliding type directly buried installation steam insulation pipe according to claim 4, which is characterized in that described anti-
Water end (W.E.) ring（11）Close to the steam pipe（1）One be laterally away from the heat-preserving load-bearing watt（8）Direction be extended have flange
（13）, the flange（13）Outer sheath is equipped with waterproof jacket（14）.
6. composite anti-corrosive inner sliding type directly buried installation steam insulation pipe according to claim 2, which is characterized in that the bubble
Foam layer（5）Including internal layer（15）And outer layer（16）, the internal layer（15）In the steel casing（4）With the outer layer（16）It
Between, the outer layer（16）In the internal layer（15）With the waterproof casings pipe（6）Between.
7. composite anti-corrosive inner sliding type directly buried installation steam insulation pipe according to claim 6, which is characterized in that it is described every
Thermosphere（2）Temperature at 240 DEG C~310 DEG C, the insulating layer（3）Temperature at 140 DEG C~260 DEG C, the steel casing（4）
Temperature at 140 DEG C~150 DEG C, the internal layer（15）Temperature at 90 DEG C~160 DEG C, the outer layer（16）Temperature at 40 DEG C
~110 DEG C, the waterproof casings pipe（6）Temperature at 40 DEG C~60 DEG C.
8. composite anti-corrosive inner sliding type directly buried installation steam insulation pipe according to claim 6, which is characterized in that it is described every
Thermosphere（2）For microporous calcium silicate watt, alumina silicate blanket or nanoporous aerogel, the insulating layer（3）It is described interior for blanket of glass wool
Layer（15）For High-temperature-respolyurethane polyurethane foam, the outer layer（16）For hard polyurethane foams.
9. composite anti-corrosive inner sliding type directly buried installation steam insulation pipe according to claim 5, which is characterized in that described anti-
Water end (W.E.) envelope（12）With the waterproof jacket（14）It is polyethylene, the waterproof casings pipe（6）For high density polyethylene (HDPE), the low spoke
Penetrate heat-insulated internal layer（9）With the outer reflective layer（10）It is aluminium foil, the air layer（7）Inside it has been filled with inert gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820240191.2U CN208123646U (en) | 2018-02-10 | 2018-02-10 | A kind of composite anti-corrosive inner sliding type directly buried installation steam insulation pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820240191.2U CN208123646U (en) | 2018-02-10 | 2018-02-10 | A kind of composite anti-corrosive inner sliding type directly buried installation steam insulation pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208123646U true CN208123646U (en) | 2018-11-20 |
Family
ID=64207748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820240191.2U Active CN208123646U (en) | 2018-02-10 | 2018-02-10 | A kind of composite anti-corrosive inner sliding type directly buried installation steam insulation pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208123646U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167554A (en) * | 2018-02-10 | 2018-06-15 | 上海科华热力管道有限公司 | A kind of composite anti-corrosive inner sliding type directly buried installation steam insulation pipe and its installation method |
| CN109404625A (en) * | 2018-12-10 | 2019-03-01 | 上海发电设备成套设计研究院有限责任公司 | A kind of heat-insulated 660 DEG C to the 760 DEG C high temperature steam pipelines with pressure-bearing of interlayer |
| CN109506052A (en) * | 2018-12-10 | 2019-03-22 | 上海发电设备成套设计研究院有限责任公司 | A kind of interlayer pressure-bearing and heat-insulated 640 DEG C to 650 DEG C high temperature steam pipelines |
| CN109723937A (en) * | 2019-01-31 | 2019-05-07 | 上海科华热力管道有限公司 | The prefabricated aerial composite vapor insulating tube of one kind and its manufacturing method |
| CN111365568A (en) * | 2020-04-13 | 2020-07-03 | 昊天节能装备有限责任公司 | Large-diameter heat preservation pipe capable of reducing heat loss |
| CN111998176A (en) * | 2020-08-26 | 2020-11-27 | 上海科华热力管道有限公司 | Prefabricated steam heat-insulating pipe with composite heat-insulating structure and manufacturing process thereof |
| CN113063040A (en) * | 2021-04-15 | 2021-07-02 | 江苏天润管业有限公司 | High-density polyurethane direct-buried heat-insulation pipe and preparation method thereof |
| CN116464845A (en) * | 2023-04-17 | 2023-07-21 | 江苏润扬管件有限责任公司 | Nickel-based superalloy anti-corrosion high-pressure pipe fitting |
-
2018
- 2018-02-10 CN CN201820240191.2U patent/CN208123646U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167554A (en) * | 2018-02-10 | 2018-06-15 | 上海科华热力管道有限公司 | A kind of composite anti-corrosive inner sliding type directly buried installation steam insulation pipe and its installation method |
| CN109404625A (en) * | 2018-12-10 | 2019-03-01 | 上海发电设备成套设计研究院有限责任公司 | A kind of heat-insulated 660 DEG C to the 760 DEG C high temperature steam pipelines with pressure-bearing of interlayer |
| CN109506052A (en) * | 2018-12-10 | 2019-03-22 | 上海发电设备成套设计研究院有限责任公司 | A kind of interlayer pressure-bearing and heat-insulated 640 DEG C to 650 DEG C high temperature steam pipelines |
| CN109404625B (en) * | 2018-12-10 | 2023-11-24 | 上海发电设备成套设计研究院有限责任公司 | Interlayer heat-insulating and pressure-bearing 660-760 ℃ high-temperature steam pipeline |
| CN109506052B (en) * | 2018-12-10 | 2024-03-12 | 上海发电设备成套设计研究院有限责任公司 | Sandwich pressure-bearing and heat-insulating 640-650 ℃ high-temperature steam pipeline |
| CN109723937A (en) * | 2019-01-31 | 2019-05-07 | 上海科华热力管道有限公司 | The prefabricated aerial composite vapor insulating tube of one kind and its manufacturing method |
| CN111365568A (en) * | 2020-04-13 | 2020-07-03 | 昊天节能装备有限责任公司 | Large-diameter heat preservation pipe capable of reducing heat loss |
| CN111998176A (en) * | 2020-08-26 | 2020-11-27 | 上海科华热力管道有限公司 | Prefabricated steam heat-insulating pipe with composite heat-insulating structure and manufacturing process thereof |
| CN113063040A (en) * | 2021-04-15 | 2021-07-02 | 江苏天润管业有限公司 | High-density polyurethane direct-buried heat-insulation pipe and preparation method thereof |
| CN116464845A (en) * | 2023-04-17 | 2023-07-21 | 江苏润扬管件有限责任公司 | Nickel-based superalloy anti-corrosion high-pressure pipe fitting |
| CN116464845B (en) * | 2023-04-17 | 2023-10-24 | 江苏润扬管件有限责任公司 | Nickel-based superalloy anti-corrosion high-pressure pipe fitting |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208123646U (en) | A kind of composite anti-corrosive inner sliding type directly buried installation steam insulation pipe | |
| KR101156311B1 (en) | Thermally insulating pipe and methods for the same | |
| CN108167554A (en) | A kind of composite anti-corrosive inner sliding type directly buried installation steam insulation pipe and its installation method | |
| CN104100210B (en) | Insulated tubing is wrapped up in outside a kind of wear-and corrosion-resistant | |
| CN104533306B (en) | Insulated tubing is wrapped up in outside a kind of | |
| CN109723937A (en) | The prefabricated aerial composite vapor insulating tube of one kind and its manufacturing method | |
| CN201363512Y (en) | Vacuum heat-insulation high-temperature pipeline | |
| AU2385701A (en) | Improved insulated pipework system | |
| CN106523856A (en) | Ultrahigh-temperature prefabricated direct burial heat preservation pipe and heat preservation method | |
| CN105299388A (en) | High-temperature thermal insulation pipe fitting containing aerogel thermal insulation material and thermal insulation method | |
| CN103195985B (en) | There is the conveyance conduit of multilayer composite heat insulation structure | |
| CN205208049U (en) | High temperature hot oil line who contains aerogel insulation material | |
| CN202392357U (en) | Directly-buried steam conveying pipeline | |
| CN203230966U (en) | Conveying pipeline with multilayer composite heat insulation structure | |
| CN105299387A (en) | High-temperature insulation pipe containing aerogel insulation material and installation method | |
| CN207599227U (en) | Steam specific complex seals FlexbleJoint | |
| CN105402507A (en) | Novel high-temperature-resistant heat supply pipeline | |
| CN102840395A (en) | Dual-layer heat-preserving weight-balancing submarine pipeline | |
| CN201184481Y (en) | Composite heat preservation structure of prefabricated direct-buried steam pipeline | |
| CN218409064U (en) | Aerogel composite thermal insulation layer and heat insulation pipeline | |
| CN203857199U (en) | Direct-burial prefabricated composite thermal insulation steam pipe with built-in rolling type inner guide steel tube | |
| CN209909395U (en) | Waterproof rain-proof cap device of steam direct-buried pipeline out of ground with compensation ability | |
| CN206018152U (en) | A kind of high prefabricated direct-buried thermal insulation pipe of structural strength | |
| CN105257917A (en) | Variable-diameter type corrosion-preventing high-temperature-resisting buried composite thermal insulation pipeline and mounting method | |
| CN210034785U (en) | Ultra-high temperature heat-insulating pipeline compounded with polyurethane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |