CN111256042A - Steel bushing steel steam insulating pipe capable of rapidly checking leakage points - Google Patents
Steel bushing steel steam insulating pipe capable of rapidly checking leakage points Download PDFInfo
- Publication number
- CN111256042A CN111256042A CN202010059696.0A CN202010059696A CN111256042A CN 111256042 A CN111256042 A CN 111256042A CN 202010059696 A CN202010059696 A CN 202010059696A CN 111256042 A CN111256042 A CN 111256042A
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- China
- Prior art keywords
- steel
- steel pipe
- pipe
- sheathed
- protective
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
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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
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
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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
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/028—Composition or method of fixing a thermally insulating material
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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
- 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
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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
- F16L59/00—Thermal insulation in general
- F16L59/06—Arrangements using an air layer or vacuum
- F16L59/065—Arrangements using an air layer or vacuum using vacuum
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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
- F16L59/00—Thermal insulation in general
- F16L59/10—Bandages or covers for the protection of the insulation, e.g. against the influence of the environment or against mechanical damage
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Insulation (AREA)
Abstract
The invention discloses a steel-sheathed steel steam insulating pipe capable of quickly checking a leakage point, relates to the field of steel steam insulating pipes, solves the problem that the steel-sheathed steel steam insulating pipe in the prior art cannot quickly check the leakage point, and has the technical key points that: the device comprises a working steel pipe, wherein a heat insulation layer covers the outer side of the working steel pipe, ripple compensation end caps are arranged at two ends of the working steel pipe, a protective steel pipe is further arranged outside the heat insulation layer, the protective steel pipe is provided with multiple sections, the multiple sections of protective steel pipes are connected through isolating rings, the protective steel pipe and the isolating rings are fixed in a seamless welding mode, a measuring interval is formed between the protective steel pipe and the protective steel pipe, the measuring interval is arranged in a vacuum mode, air holes are formed in the single measuring interval through the heat insulation layer, and thermochromic paint is further arranged outside the protective steel pipe; the invention can rapidly check the leakage section, and can improve the maintenance efficiency of steam leakage faults compared with the prior art.
Description
Technical Field
The invention relates to the field of steel steam heat-insulating pipes, in particular to a steel sleeve steel steam heat-insulating pipe capable of rapidly checking a leakage point.
Background
The steel-sheathed steel steam heat-insulating pipe is formed by combining an outer protective steel pipe, a steel pipe, an anti-corrosion layer, a polyurethane foam heat-insulating layer and an inner working steel pipe. The steel-sleeve steel composite steam heat-insulating pipe is suitable for conveying steam or other media below 2.5MPa and 350 ℃, uses a steel pipe as an outer protective layer, and has the advantages of high strength, difficult damage, simple and convenient construction and maintenance and long service life.
Chinese patent publication No. CN203176637U discloses a steel-sheathed steel thermal insulation pipe with a corrugated compensation end cap, which comprises a working steel rod, a guide bracket, an outer protection steel pipe and a corrugated compensation end cap arranged in the outer protection steel pipe, wherein the working steel rod is arranged in the corrugated compensation end cap, and a thermal insulation layer is arranged in the outer protection steel pipe; the steel sleeve steel steam insulating pipe with the corrugated compensation end cap has the function of cutting off a steam pipeline, so that when leakage occurs in the pipeline, only the small-section pipeline with leakage is influenced, and the normal operation of other pipelines cannot be influenced. However, the leakage point of the insulating pipe cannot be rapidly checked, and therefore, a steel-sheathed steel steam insulating pipe capable of rapidly checking the leakage point is provided.
Disclosure of Invention
The invention aims to solve the technical problem that leakage points can be quickly checked and provided by the steel-sheathed-steel steam insulation pipe, which comprises a working steel pipe, wherein the outer side of the working steel pipe is covered with a heat insulation layer, two ends of the working steel pipe are provided with corrugated compensation end caps, the outer part of the heat insulation layer is also provided with a protection steel pipe, the protection steel pipe is provided with a plurality of sections, the plurality of sections of protection steel pipes are connected through isolation rings, the protection steel pipe and the isolation rings are fixed in a seamless welding mode, a measurement interval is formed between the protection steel pipe and the protection steel pipe, the measurement interval is arranged in a vacuum mode, the heat insulation layer is provided with air holes in a single measurement interval, four groups of air holes are arranged in the single interval, and the outer part of the protection steel pipe is also provided with thermochromic paint, so that the.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a steel bushing steel steam insulating tube that can inspect leakage point fast, including the work steel pipe, the outside of work steel pipe is covered with the heat preservation, the both ends of work steel pipe are equipped with ripple compensation end cap, the outside of heat preservation still is equipped with the protection steel pipe, the protection steel pipe is equipped with the multistage, and the multistage protection steel pipe passes through the isolating ring and connects, protection steel pipe and isolating ring adopt seamless welded mode fixed, and constitute between protection steel pipe and the protection steel pipe and measure the interval, the interior vacuum of measurement interval sets up, and the heat preservation is equipped with the bleeder vent in single measurement interval, be equipped with four groups of bleeder vents in single interval, the outside of protection steel pipe still is equipped with the.
As a further scheme of the invention, a first vacuumizing port is arranged on the protective steel pipe, and a first one-way valve is arranged on the first vacuumizing port.
As a further scheme of the invention, the isolating ring is annular and is sleeved on the heat-insulating layer.
As a further scheme of the invention, the outside of the heat-insulating layer is also sleeved with a heat-insulating layer protection net.
As a further scheme of the invention, the outer side of the protective steel pipe is also provided with an anticorrosive paint, the anticorrosive paint is coated on the outer surface of the protective steel pipe, the thermochromic paint is coated in a ring shape, and at least one group of thermochromic paint is arranged in a single measuring interval.
As a further scheme of the invention, the connecting pipe is formed by welding two sections of semicircular steel plates.
As a further scheme of the invention, a second vacuumizing port is arranged in the connecting pipe, and a second one-way valve is arranged at the second vacuumizing port.
In conclusion, compared with the prior art, the invention has the following beneficial effects:
according to the invention, the temperature sensing color changing paint is used for identifying the leakage points in sections, and when leakage occurs, the temperature sensing color changing paint changes color, so that the leakage section can be rapidly checked.
Drawings
FIG. 1 is a schematic structural diagram of a steel-sheathed-steel steam insulation pipe capable of rapidly inspecting a leakage point.
FIG. 2 is a schematic view of the structure of the isolating ring in the steel-sheathed-steel steam insulating pipe capable of rapidly inspecting the leakage point.
FIG. 3 is a schematic view of the structure of a connecting pipe in a steel-sheathed steel steam insulation pipe capable of rapidly checking a leakage point.
Reference numerals: 1-working steel pipe, 2-insulating layer, 3-protective steel pipe, 4-isolation ring, 5-corrugated compensation end cap, 6-connecting pipe and 7-insulating layer protection net.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
Example 1
As shown in fig. 1, a steel sleeve steel steam thermal insulation pipe capable of rapidly checking leakage points comprises a working steel pipe 1, wherein a thermal insulation layer 2 is covered on the outer side of the working steel pipe 1, corrugated compensation end caps 5 are arranged at two ends of the working steel pipe 1, a protection steel pipe 3 is further arranged outside the thermal insulation layer 2, the protection steel pipe 3 is provided with multiple sections, the multiple sections of protection steel pipes 3 are connected through isolation rings 4, the protection steel pipe 3 and the isolation rings 4 are fixed in a seamless welding mode, a measurement interval is formed between the protection steel pipe 3 and the protection steel pipe 3, the measurement interval is internally provided with vacuum, a thermal insulation layer 2 is arranged in a single measurement interval, four groups of air holes are arranged in the single interval, and thermochromic paint is further arranged outside the protection steel pipe 3;
preferably, the protective steel pipe 3 is provided with a first vacuumizing port, the first vacuumizing port is provided with a first one-way valve, so that a worker can conveniently vacuumize, when the worker finishes vacuumizing work, the vacuumizing pipe is cut off and blocked, and then paint is sprayed;
as shown in fig. 2, the isolation ring 4 is annular, and the isolation ring 4 is sleeved on the heat insulation layer 2;
preferably, the protection steel pipes 3 on different heat preservation pipes are connected by adopting a connecting pipe 6, the working steel pipe 1 and the working steel pipe 1 are fixedly connected in a seamless welding mode, the connecting pipe 6 is formed by welding two sections of semicircular steel plates, after the working steel pipe 1 is welded, a heat preservation material is wound, then the connecting pipe 6 is assembled on the outer side of the working steel pipe 1, and the connecting pipe 6 is fixed on the protection steel pipe 3 in a seamless welding mode;
preferably, a second vacuum-pumping port is arranged in the connecting pipe 6, and a second one-way valve is arranged at the second vacuum-pumping port;
preferably, the outer side of the protective steel pipe 3 is also provided with an anticorrosive paint, the anticorrosive paint is coated on the outer surface of the protective steel pipe 3, the thermochromic paint is coated in a ring shape, and at least one group of thermochromic paint is arranged in a single measurement interval.
Example 2
As shown in fig. 1, a steel sleeve steel steam thermal insulation pipe capable of rapidly checking leakage points comprises a working steel pipe 1, wherein a thermal insulation layer 2 is covered on the outer side of the working steel pipe 1, corrugated compensation end caps 5 are arranged at two ends of the working steel pipe 1, a protection steel pipe 3 is further arranged outside the thermal insulation layer 2, the protection steel pipe 3 is provided with multiple sections, the multiple sections of protection steel pipes 3 are connected through isolation rings 4, the protection steel pipe 3 and the isolation rings 4 are fixed in a seamless welding mode, a measurement interval is formed between the protection steel pipe 3 and the protection steel pipe 3, the measurement interval is internally provided with vacuum, a thermal insulation layer 2 is arranged in a single measurement interval, four groups of air holes are arranged in the single interval, and thermochromic paint is further arranged outside the protection steel pipe 3;
preferably, in this embodiment, an insulating layer protection net 7 is further sleeved outside the insulating layer 2, and is used for preventing the vacuum environment from expanding the insulating layer 2, so that the insulating effect of the insulating layer 2 is affected;
other structures in this embodiment are the same as those in embodiment 1.
In summary, the working principle of the invention is as follows:
the vacuum setting is arranged in the measuring interval, so that the measuring interval has a heat preservation effect, when the working steel pipe 1 leaks, high-temperature steam quickly enters the protective steel pipe 3, the protective steel pipe 3 is heated, the thermochromic paint on the surface of the protective steel pipe 3 changes color, and the leakage section is detected.
It needs to explain very much, steel bushing steel steam insulating tube heat preservation technique is prior art's application in this application, establishes separately the leak point through the temperature sensing paint segmentation and is the innovation point of this application, and it has effectively solved the unable problem of quick check leak point of steel bushing steel steam insulating tube among the prior art.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a steel bushing steel steam insulating tube that can inspect leakage point fast, including work steel pipe (1), the outside of work steel pipe (1) is covered with heat preservation (2), the both ends of work steel pipe (1) are equipped with ripple compensation end cap (5), the outside of heat preservation (2) still is equipped with protection steel pipe (3), a serial communication port, protection steel pipe (3) are equipped with the multistage, and multistage protection steel pipe (3) are connected through spacer ring (4), it is fixed that protection steel pipe (3) and spacer ring (4) adopt seamless welded mode, and constitute between protection steel pipe (3) and measure the interval, the interior vacuum setting of measurement interval, and heat preservation (2) are equipped with the bleeder vent in single measurement interval, be equipped with four groups of bleeder vents in single interval, the outside of protection steel pipe (3) still is equipped with the temperature sensing paint that discolour.
2. The steel-sheathed steel steam insulating pipe capable of rapidly inspecting the leakage point according to claim 1, wherein the protective steel pipe (3) is provided with a first vacuumizing port provided with a first one-way valve.
3. The steel-sheathed-steel steam insulation pipe capable of rapidly inspecting the leakage point according to claim 1, wherein the isolation ring (4) is annular, and the isolation ring (4) is sleeved on the insulation layer (2).
4. The steel-sheathed steel steam insulation pipe capable of rapidly inspecting the leakage point according to claim 3, characterized in that an insulation layer protection net is further sheathed outside the insulation layer (2).
5. The steel-sheathed-steel steam insulation pipe capable of rapidly inspecting the leakage point according to claim 1, characterized in that the outer side of the protective steel pipe (3) is further provided with an anticorrosive paint, the anticorrosive paint is coated on the outer surface of the protective steel pipe (3), the thermochromic paint is coated in a ring shape, and at least one group of thermochromic paint is arranged in a single measurement interval.
6. The steel-sheathed-steel steam insulation pipe capable of rapidly inspecting the leakage point according to any one of claims 1 to 5, further comprising a connecting pipe (6), wherein the connecting pipe (6) is formed by welding two sections of semicircular steel plates, and the connecting pipe (6) is connected to the protective steel pipe (3) in a seamless manner.
7. The steel-sheathed steel steam insulating pipe capable of rapidly inspecting the leakage point according to claim 6, wherein a second vacuumizing port is arranged in the connecting pipe (6), and the second vacuumizing port is provided with a second one-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010059696.0A CN111256042A (en) | 2020-01-19 | 2020-01-19 | Steel bushing steel steam insulating pipe capable of rapidly checking leakage points |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010059696.0A CN111256042A (en) | 2020-01-19 | 2020-01-19 | Steel bushing steel steam insulating pipe capable of rapidly checking leakage points |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111256042A true CN111256042A (en) | 2020-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010059696.0A Pending CN111256042A (en) | 2020-01-19 | 2020-01-19 | Steel bushing steel steam insulating pipe capable of rapidly checking leakage points |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111256042A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113639207A (en) * | 2021-10-13 | 2021-11-12 | 海门市晨光照明电器有限公司 | Buried heat-insulating pipeline convenient to detect and detection method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4516520A (en) * | 1982-08-31 | 1985-05-14 | The Babcock & Wilcox Company | Method and apparatus of thermal detection using bonded coupon |
| CN102900955A (en) * | 2012-11-09 | 2013-01-30 | 天津亿利科能源科技发展股份有限公司 | Pipeline leakage on-line monitoring device and method based on f fiber temperature detection |
| CN104006222A (en) * | 2013-02-27 | 2014-08-27 | 唐山兴邦管道工程设备有限公司 | Fixed support for heat preservation of corrugated compensation steel bushing |
| CN204387699U (en) * | 2015-01-08 | 2015-06-10 | 无锡市政设计研究院有限公司 | Self-adhesive heat discoloration thermal pipe leaks warning tape |
| CN208997712U (en) * | 2018-11-16 | 2019-06-18 | 淮安四方保温管有限公司 | A kind of buried jet chimney structure |
-
2020
- 2020-01-19 CN CN202010059696.0A patent/CN111256042A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4516520A (en) * | 1982-08-31 | 1985-05-14 | The Babcock & Wilcox Company | Method and apparatus of thermal detection using bonded coupon |
| CN102900955A (en) * | 2012-11-09 | 2013-01-30 | 天津亿利科能源科技发展股份有限公司 | Pipeline leakage on-line monitoring device and method based on f fiber temperature detection |
| CN104006222A (en) * | 2013-02-27 | 2014-08-27 | 唐山兴邦管道工程设备有限公司 | Fixed support for heat preservation of corrugated compensation steel bushing |
| CN204387699U (en) * | 2015-01-08 | 2015-06-10 | 无锡市政设计研究院有限公司 | Self-adhesive heat discoloration thermal pipe leaks warning tape |
| CN208997712U (en) * | 2018-11-16 | 2019-06-18 | 淮安四方保温管有限公司 | A kind of buried jet chimney structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113639207A (en) * | 2021-10-13 | 2021-11-12 | 海门市晨光照明电器有限公司 | Buried heat-insulating pipeline convenient to detect and detection method thereof |
| CN113639207B (en) * | 2021-10-13 | 2021-12-21 | 海门市晨光照明电器有限公司 | Buried heat-insulating pipeline convenient to detect and detection method thereof |
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| PB01 | Publication | ||
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Application publication date: 20200609 |