CN103557405B - With prefabricated thermal isolated pipe production technology and the sash weight thereof of leakage monitoring system - Google Patents
With prefabricated thermal isolated pipe production technology and the sash weight thereof of leakage monitoring system Download PDFInfo
- Publication number
- CN103557405B CN103557405B CN201310547855.1A CN201310547855A CN103557405B CN 103557405 B CN103557405 B CN 103557405B CN 201310547855 A CN201310547855 A CN 201310547855A CN 103557405 B CN103557405 B CN 103557405B
- Authority
- CN
- China
- Prior art keywords
- signaling line
- steel tube
- monitoring system
- production technology
- leakage monitoring
- 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
Classifications
-
- 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
- F16L59/14—Arrangements for the insulation of pipes or pipe systems
- F16L59/15—Arrangements for the insulation of pipes or pipe systems for underground pipes
-
- 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
-
- 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
Abstract
With prefabricated thermal isolated pipe production technology and the sash weight of leakage monitoring system, production technology comprises: 1. install several mounting brackets in the outer surface compartment of terrain of working steel tube, described mounting bracket is provided with several signal string holes; 2. the signaling line of requirement is penetrated in signal string holes described in each according to precalculated position, and make the two ends of described signaling line expose described mounting bracket; 3. the described working steel tube being provided with described mounting bracket is penetrated in outer pillar, annular blocking device is installed at the gap location of described outer pillar two pipe ends and described working steel tube and the two ends of described signaling line are passed described annular blocking device; 4. the described signaling line end of material feeding end and described annular blocking device are fixed, the described signaling line end of non-material feeding end is hung up fixing sash weight, makes described signaling line tensioning; 5. foaming operation.Heat-insulated pipe production technology of the present invention and sash weight can really with the quality of product of the prefabricated thermal isolated pipe of leakage monitoring system, and technological operation is simple.
Description
Technical field
The invention belongs to polyurethane adiabatic pipe field, particularly a kind of prefabricated thermal isolated pipe production technology with leakage monitoring system and sash weight thereof.
Background technique
Because polyurethane adiabatic pipe has excellent insulation effect and the feature such as easy construction, energy-saving anti-corrosive Be very effective, therefore be widely used in thermal insulation, the prepressing reserving works of the industrial pipelines such as central heat supply, refrigeration, oil transportation, defeated vapour.The basic structure of polyurethane adiabatic pipe comprises working steel tube; Be set with outer pillar outside working steel tube, the material of outer pillar is generally high density polyethylene (HDPE); It is polyurethane adiabatic layer between working steel tube and outer pillar.The production method of the steel bushing steel vacuum high temperature steam prefabricated direct-buried heat-insulated pipe of Chinese patent literature CN101413620A() disclose a kind of conventional polyurethanes heat-insulated pipe production technology adiabatic, comprise step one, impeller blasting, two, be installed sliding support, three, coated heat insulation layer, four, outermost surface coated layer of glass cloth again, five, poling, six, product handling system.
Along with in central heat supply industry, the requirement of laying insulated piping is improved day by day, and affect by factors such as material property difference, complicated installation and backfill conditions, the possibility that water/steam infiltrates is had in the polyurethane foam heat insulation layer of insulated piping, once heat insulation layer water of infiltration, the thermal conductivity of heat insulation layer will become large, and heat supply thermal loss increases, and this will affect normal heat supply, and easily aged deterioration after heat insulation layer infiltration, affect the working life of heat-insulated pipe.In order to Timeliness coverage pipe leakage, need to use the pipeline with leak detection function, therefore promoted the appearance of the insulated piping with leakage monitoring system.But the production method of the steel bushing steel vacuum high temperature steam prefabricated direct-buried heat-insulated pipe in above-mentioned document does not have the technique of pre-buried signaling line in heat insulation layer, and the heat-insulated pipe produced is without monitoring system.
Monitoring system in polyurethane adiabatic pipe, normally signalization line (or being called monitoring line, alarming line) in the middle of the heat insulation layer of heat-insulated pipe, signaling line can not rupture in the whole production process of heat-insulated pipe, can not with steel tube lapping, such guarantee is in pipe network operation, and signaling line can the signal of normal transmission leakage monitoring system.
But the pre-buried mode of existing signaling line, be normally positioned in polyurethane foam heat insulation layer by stretching for signaling line, then carry out foam process.But, because foaming raw material liberated heat in course of reaction can cause signaling line expanded by heating, elongation, after the shaping cooling of pipeline, the signaling line be installed in advance in heat insulation layer will bend, fold, thus cause stress to be concentrated, signaling line easily ruptures, and can not guarantee the leak detection function of heat-insulated pipe, and quality of product is not good.
Summary of the invention
For this reason, technical problem to be solved by this invention is that the mode of the fixed signal line of prior art is in course of working, easily make signaling line generation play, buckle fold and fracture, the leak detection function of heat-insulated pipe can not be guaranteed, quality of product is not good, and provides a kind of heat-insulated pipe quality of product, easy and simple to handle for the production of the prefabricated thermal isolated pipe production technology with leakage monitoring system and the sash weight thereof with leakage monitoring function can guaranteed.
For solving the problems of the technologies described above, technological scheme of the present invention is as follows:
With a prefabricated thermal isolated pipe production technology for leakage monitoring system, comprise the steps: 1. in the outer surface compartment of terrain of working steel tube, several mounting brackets to be installed, described mounting bracket is provided with several signal string holes; 2. the signaling line of requirement is penetrated described in each according to precalculated position and pacify in signal string holes, and make the two ends of described signaling line expose described mounting bracket; 3. the described working steel tube being provided with described mounting bracket is penetrated in outer pillar, annular blocking device is installed at the gap location of described outer pillar two pipe ends and described working steel tube and the two ends of described signaling line are passed described annular blocking device; 4. the described signaling line end of material feeding end and described annular blocking device are fixed, the described signaling line end of non-material feeding end is hung up sash weight, makes described signaling line tensioning; 5. foaming operation.
Above-mentioned with in the prefabricated thermal isolated pipe production technology of leakage monitoring system, before step is 1., also comprise the step of described working steel tube being carried out to Shot Blasting.
Above-mentioned with in the prefabricated thermal isolated pipe production technology of leakage monitoring system, the depth of abrasion pattern of working steel tube is more than or equal to 40 μm.
Above-mentioned with in the prefabricated thermal isolated pipe production technology of leakage monitoring system, before Shot Blasting step, also comprise the step that described outer surface of steel tube is dried.
In the production technology of the above-mentioned polyurethane foam prefabricated thermal isolated pipe with leakage monitoring system, 3. described step is specially and hangs on poling machine by capable for the described working steel tube installing described mounting bracket and described signaling line, press the forwarding button switch of described poling machine, described working steel tube is advanced in described outer pillar.
Above-mentioned with in the prefabricated thermal isolated pipe production technology of leakage monitoring system, after described step is 5., also comprise the step that finished product after foaming is processed.
Above-mentioned with in the prefabricated thermal isolated pipe production technology of leakage monitoring system, the length that described annular blocking device is stretched out at the two ends of described signaling line is 300-500mm.
A kind of sash weight for the above-mentioned prefabricated thermal isolated pipe production technology with leakage monitoring system, for fixing and regulating the straightness of the signaling line be arranged in heat-insulated pipe heat insulation layer, comprise the hammer body of weight and described signaling line material, Performance Match, described hammer body has at least one coupler body.
In above-mentioned sash weight, described hammer body is axisymmetric body; The hook portion of described coupler body is stretched out downwards, and the angle of the main body portion of described hook portion and described coupler body acutangulates.
In above-mentioned sash weight, described angle becomes 30-60 °.
Technique scheme of the present invention has the following advantages compared to existing technology:
(1) the present invention is with the prefabricated thermal isolated pipe production technology of leakage monitoring system, there is the process step of pre-buried signaling line in heat insulation layer, the heat-insulated pipe with monitoring system can be produced, and can guarantee that signaling line is straight, tight and keep certain distance with working steel tube, technological method is easy and simple to handle, good product quality.
(2) the present invention is with the prefabricated thermal isolated pipe production technology of leakage monitoring system, in the outer surface compartment of terrain of working steel tube, several mounting brackets are installed, and mounting bracket has some signal string holes, signaling line is penetrated in this signal string holes, can ensure that the spacing of signaling line and working steel tube meets the pre-provisioning request of monitoring system, and guarantee signaling line can not fold, fracture, can not overlap with working steel tube.
(3) the present invention is with the prefabricated thermal isolated pipe production technology of leakage monitoring system, utilizes sash weight by signaling line tensioning, and utilizes the self gravitation inhibit signal line of sash weight straight, and method is easy, effective.
(4) the present invention is with the prefabricated thermal isolated pipe production technology of leakage monitoring system, the shot-blast apparatus of specialty is used to carry out Shot Blasting to working steel tube, steel tube surface after Shot Blasting reaches the Sa2.5 level requirement that standard GB8923 requires, the depth of abrasion pattern of working steel tube is more than or equal to 40 μm, is beneficial to the rust cleaning japanning of working steel tube and the installation of support.
(5) the present invention is with the prefabricated thermal isolated pipe production technology of leakage monitoring system, if chance sleety weather, before Shot Blasting step, also comprise the step of working steel tube outer surface being carried out to drying and processing, fully the moisture on working steel tube surface is evaporated, ensure that the degree of dryness of working steel tube prevents from getting rusty.
(6) the present invention is with the prefabricated thermal isolated pipe production technology of leakage monitoring system, also comprises the step processed finished product after foaming, guarantees the quality of finished product, convenient transport.
(7) sash weight of the present invention, for fixing and regulating the straightness of the signaling line be arranged in heat-insulated pipe heat insulation layer, comprise weight and signaling line material, performance-relevant hammer body, hammer body has at least one coupler body.During use, coupler body is connected with signaling line, and sash weight naturally droops, tensioning signaling line; The weight of hammer body and signaling line material, Performance Match, can while tensioning signaling line, can not make signaling line impaired, fracture, even if when foaming raw material exothermic heat of reaction, because sash weight has constant weight, at signaling line due to during by thermal stretching, the weight of sash weight self can make signaling line constant tension, avoid signaling line to be subject to thermal stretching to produce fold, thus guarantee heat-insulated pipe quality of product, simplicity of design, easy and simple to handle, and selection is easy, when weight meets the demands, volume can do little as far as possible, convenient operation.In addition, multiple coupler body is formed for subsequent use, sash weight is used more flexible, durable, ensure signaling line can not fracture, can not with steel tube lapping.
(8) sash weight of the present invention, wherein coupler body can be one-body molded with hammer body, thus reduce production process, enhance productivity, reduce costs, and sash weight is also durable.
(9) sash weight of the present invention, wherein coupler body can be fixedly connected with hammer body is dismantled and assembled, and it is more flexible that this design makes sash weight use, and is applicable to different application occasion, meets different user demand.
(10) sash weight of the present invention, wherein hammer body is axisymmetric body, and such sash weight is more balanced, symmetrical for the tension of signaling line, and effect is better.
(11) sash weight of the present invention, wherein hammer body is axisymmetric body, and the hook portion of coupler body is stretched out downwards, the angle of the main body portion of hook portion and coupler body acutangulates, and be preferably 30-60 °, the best is 45 °, make the connection of signaling line and suspension hammer device solid, reliable, and machine shaping is convenient.
Accompanying drawing explanation
In order to make content of the present invention be more likely to be clearly understood, below according to a particular embodiment of the invention and by reference to the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is the structural representation of the present invention with the prefabricated thermal isolated pipe of leakage monitoring system;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the structural representation of the present invention with sash weight in the prefabricated thermal isolated pipe production technology of leakage monitoring system;
Fig. 4 is that the present invention is with sash weight schematic diagram in use in the prefabricated thermal isolated pipe production technology of leakage monitoring system;
Fig. 5 is the side view of Fig. 4.
In figure, reference character is expressed as: 1-working steel tube, 2-heat insulation layer, the outer pillar of 3-, 4-signaling line, 5-mounting bracket, 6-annular blocking device, 7-sash weight, 71-hammer body, 72-coupler body, 73-hook portion, 74-main body portion.
Embodiment
As Figure 1-5, be the prefabricated thermal isolated pipe production technology of the present invention with leakage monitoring system and the preferred embodiment of sash weight thereof.
The prefabricated thermal isolated pipe that the present invention relates to is polyurethane foam prefabricated thermal isolated pipe, and the basic structure of described polyurethane adiabatic pipe comprises working steel tube 1; Be set with outer pillar 3 outside described working steel tube 1, the material of described outer pillar 3 is generally high density polyethylene (HDPE); Being polyurethane adiabatic layer 2 between described working steel tube 1 and described outer pillar 3, in described heat insulation layer 2, being provided with mounting bracket 5 and at least one signaling line 4, for monitoring pipeline leakage situation.
The described prefabricated thermal isolated pipe production technology with leakage monitoring system, comprises the steps:
A. Shot Blasting.
Utilize the shot-blast apparatus of specialty to carry out Shot Blasting to working steel tube, the surface of the described working steel tube 1 after Shot Blasting reaches the Sa2.5 level requirement of standard GB8923 requirement, and the depth of abrasion pattern of described working steel tube 1 is more than or equal to 40 μm.
B. install mounting bracket 5 described in several in the outer surface compartment of terrain of described working steel tube 1, the magnitude setting of described mounting bracket 5 is chosen according to product specification.
Described mounting bracket 5 has the signal string holes being suitable for described signaling line 4 and passing; Described mounting bracket 5 can ensure that described signaling line 4 meets the requirement of leakage monitoring system with the spacing of described working steel tube 1, and guarantee described signaling line 4 can not fold, fracture, can not overlap with described working steel tube 1.
C. penetrated in signal string holes described in each according to precalculated position by the described signaling line 4 of requirement, and make the two ends of described signaling line 4 expose described mounting bracket 5, the quantity of described signaling line 4 is chosen according to product specification.
D. the described working steel tube 1 being provided with described mounting bracket 5 is penetrated in described outer pillar 3, annular blocking device 6 is installed at the gap location of described outer pillar 3 two pipe ends and described working steel tube 1 and the two ends of described signaling line 4 are passed described annular blocking device 6.
The described working steel tube 1 installing described mounting bracket 5 and described signaling line 4 is hung on poling machine with row, presses the forwarding button switch of described poling machine, described working steel tube 1 is advanced in described outer pillar 3.Described annular blocking device 6 has the hole being suitable for described signaling line 4 and passing, and the aperture in described hole and pitch-row must meet the requirement of leakage monitoring system, not only can prevent the leakage of stabilizer in the process of foaming, and can ensure that signaling line can not fracture, can not overlap with working steel tube.
The length that the described hole of described annular blocking device 6 is stretched out at the two ends of described signaling line 4 is 300-500mm, is preferably 400mm in the present embodiment.
E. the pipeline installing described annular blocking device 6 is placed on foaming platform, described signaling line 4 end of material feeding end and described annular blocking device 6 are fixed, described signaling line 4 end of non-material feeding end is hung up sash weight 7, described sash weight 7 is naturally drooped, make the tensioning of described signaling line 4.
Above-mentioned material feeding end refers to, in the rear one end to injecting thermoinsulation material between described working steel tube 1 and described outer pillar 3 assembling described annular blocking device 6, and the other end does not inject thermoinsulation material is non-material feeding end.
According to material, the performance of the described signaling line 4 of difference, calculate the weight of described sash weight 7, enable described suspension hammer device ensure while signaling line described in tensioning 4, described signaling line 4 can not be made to produce impaired, fracture.Before carrying out foam process, between described material feeding end and described non-material feeding end, pull described signaling line 4 back and forth, make the described signaling line 4 in pipeline straight, without deadfold, can normally slide under external force.
F. foaming operation.
When foaming raw material exothermic heat of reaction, because described sash weight 7 has constant weight, when described signaling line 4 is by thermal stretching, the weight of described sash weight 7 self can make described signaling line 4 constant tension, avoids described signaling line 4 to produce fold by thermal stretching.
G. finished product after foaming is processed.As disassembling fixture equipment, tie up adhesive tape etc.
The present invention is used for the described sash weight 7 of the above-mentioned prefabricated thermal isolated pipe production technology with leakage monitoring system for fixing and regulating the straightness of the described signaling line 4 be arranged in described heat insulation layer 2, described sash weight 7 comprises weight and described signaling line 4 material, performance-relevant hammer body 71, and described hammer body 71 has at least one coupler body 72.
Described hammer body 71 is axisymmetric body, and described hammer body 71 is cylindrical body in the present embodiment; Described hammer body 71 has a described coupler body 72, and described coupler body 72 and the connecting position of described hammer body 71 are positioned at the axle center of described hammer body 71 upper surface; Described coupler body 72 is body formed with described hammer body 71 points and be fixedly connected with, and described coupler body 72 is fixedly connected with by welding manner with described hammer body 71 in the present embodiment.The hook portion 73 of described coupler body 72 is stretched out downwards, the described signaling line 4 of described non-material feeding end is suitable for hanging in described hook portion 73, described hook portion 73 acutangulates with the angle of the main body portion 74 of described coupler body 72, described hook portion 73 becomes 30-60 ° with the angle of described main body portion 74, in the present embodiment, described hook portion 73 is at 45 ° with the angle of described main body portion 74.
In other embodiments, also can comprise the step of drying described working steel tube 1 outer surface before described Shot Blasting step, in case sleety weather, steel tube surface is moist, affects the processing of heat-insulated pipe.
In other embodiments, if working steel tube meets product requirement, also no longer Shot Blasting can be carried out; Also the step that finished product after foaming is processed can not be comprised.
In other embodiments, according to the requirement of described signaling line 4 quantity, signaling line 4 described in every root can use one, two or more described suspension hammer device.In other embodiments, described coupler body 72 and described hammer body 71 can be split design, and the two is dismantled and assembledly fixedly connected with.
In other embodiments, hammer body 71 can have two, coupler body 72 described in three or more, is formed for subsequent use.
In other embodiments, hammer body 71 can be the axisymmetric body such as cube, cone, also can be the non-axis symmetry bodies such as tri-prismoid.
In other embodiments, hook-type 73 and the angle of main body portion 74 also can be 20 °, 30 °, 50 °, 60 °, 80 ° etc.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to mode of execution.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all mode of executions.And thus the apparent change of extending out or variation be still among the protection domain of the invention.
Claims (10)
1., with a prefabricated thermal isolated pipe production technology for leakage monitoring system, it is characterized in that: comprise the steps,
1. in the outer surface compartment of terrain of working steel tube (1), several mounting brackets (5) are installed, described mounting bracket (5) are provided with several signal string holes;
2. the signaling line (4) of requirement is penetrated in signal string holes described in each according to precalculated position, and make the two ends of described signaling line (4) expose described mounting bracket (5);
3. the described working steel tube (1) being provided with described mounting bracket (5) is penetrated in outer pillar (3), annular blocking device (6) is installed at the gap location of described outer pillar (3) two pipe ends and described working steel tube (1) and the two ends of described signaling line (4) are passed described annular blocking device (6);
4. described signaling line (4) end of material feeding end and described annular blocking device (6) are fixed, each described signaling line (4) end of non-material feeding end is hung up sash weight (7), makes described signaling line (4) tensioning;
5. foaming operation.
2. the prefabricated thermal isolated pipe production technology with leakage monitoring system according to claim 1, is characterized in that: before described step 1., also comprise the step of described working steel tube (1) being carried out to Shot Blasting.
3. the prefabricated thermal isolated pipe production technology with leakage monitoring system according to claim 2, is characterized in that: the depth of abrasion pattern of described working steel tube (1) is more than or equal to 40 μm.
4. the prefabricated thermal isolated pipe production technology with leakage monitoring system according to Claims 2 or 3, is characterized in that: before described Shot Blasting step, also comprise the step of drying described working steel tube (1) outer surface.
5. the prefabricated thermal isolated pipe production technology with leakage monitoring system according to claim 1, it is characterized in that: 3. described step is specially and hangs the described working steel tube (1) installing described mounting bracket (5) and described signaling line (4) on poling machine with row, press the forwarding button switch of described poling machine, described working steel tube (1) is advanced in described outer pillar (3).
6. the prefabricated thermal isolated pipe production technology with leakage monitoring system according to claim 1, is characterized in that: after described step 5., also comprise the step processed finished product after foaming.
7. the prefabricated thermal isolated pipe production technology with leakage monitoring system according to claim 1, is characterized in that: the length that described annular blocking device (6) is stretched out at the two ends of described signaling line (4) is 300-500mm.
8. one kind for the arbitrary described sash weight with the prefabricated thermal isolated pipe production technology of leakage monitoring system of the claims 1-7, for fixing and regulating the straightness of the signaling line (4) be arranged in heat-insulated pipe heat insulation layer (2), it is characterized in that: the hammer body (71) comprising weight and described signaling line (4) material, Performance Match, described hammer body (71) has at least one coupler body (72).
9. sash weight according to claim 8, is characterized in that: described hammer body (71) is axisymmetric body; The hook portion (73) of described coupler body (72) is stretched out downwards, and described hook portion (73) acutangulates with the angle of the main body portion (74) of described coupler body (72).
10. sash weight according to claim 9, is characterized in that: described angle becomes 30-60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310547855.1A CN103557405B (en) | 2013-11-06 | 2013-11-06 | With prefabricated thermal isolated pipe production technology and the sash weight thereof of leakage monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310547855.1A CN103557405B (en) | 2013-11-06 | 2013-11-06 | With prefabricated thermal isolated pipe production technology and the sash weight thereof of leakage monitoring system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103557405A CN103557405A (en) | 2014-02-05 |
| CN103557405B true CN103557405B (en) | 2015-10-14 |
Family
ID=50011725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310547855.1A Active CN103557405B (en) | 2013-11-06 | 2013-11-06 | With prefabricated thermal isolated pipe production technology and the sash weight thereof of leakage monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103557405B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295803B (en) * | 2014-09-25 | 2017-12-05 | 哈尔滨朗格斯特节能科技有限公司 | Intelligent prefabricated direct buried crosslinked polyethylene double tube reducing work insulating tube and installation method |
| CN104295842B (en) * | 2014-09-25 | 2018-09-04 | 哈尔滨朗格斯特节能科技有限公司 | Intelligent prefabricated direct buried insulating tube crosslinked polyethylene double tube reducer tee and installation method |
| CN104295845A (en) * | 2014-09-26 | 2015-01-21 | 哈尔滨朗格斯特节能科技有限公司 | Crosslinked polyethylene work pipe fitting elbow for directly-buried heat preservation pipe intelligently prefabricated and manufacturing method |
| CN104266024A (en) * | 2014-10-08 | 2015-01-07 | 哈尔滨朗格斯特节能科技有限公司 | Intelligent prefabricated direct burial thermal insulation pipe cross linked polyethylene pipe fitting span tee joint and manufacture method |
| CN104482358B (en) * | 2014-10-31 | 2017-09-29 | 哈尔滨朗格斯特节能科技有限公司 | Intelligent heat preserving double steel tube reducer tee alarming line fixing device and fixing means |
| CN104373699A (en) * | 2014-10-31 | 2015-02-25 | 哈尔滨朗格斯特节能科技有限公司 | Intelligent prefabricated directly-buried thermal insulation pipe crosslinked polyethylene working pipe and manufacturing method |
| CN109386692A (en) * | 2018-12-24 | 2019-02-26 | 哈尔滨朗格斯特节能科技有限公司 | The foaming of hard polyaminoester mold is combined insulating tube and manufacturing method with polyethylene winding |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2386313Y (en) * | 1999-08-19 | 2000-07-05 | 张礼扬 | Thermal insulation water drawing pipe for solar water heater |
| JP2005207592A (en) * | 2004-01-20 | 2005-08-04 | Gaz Transport & Technigaz | Heat insulating pipeline |
| CN101236040A (en) * | 2007-02-02 | 2008-08-06 | 财团法人工业技术研究院 | Combined coolant piping |
| CN101281077A (en) * | 2007-08-07 | 2008-10-08 | 陈宜中 | Water leakage heat absorption type pipeline leak detecting method |
| CN101413620A (en) * | 2008-11-26 | 2009-04-22 | 天津市军星管材制造有限公司 | Steel bushing steel vacuum high temperature steam prefabricated direct-buried thermal insulation pipe and producing method thereof |
| CN201277933Y (en) * | 2008-09-25 | 2009-07-22 | 曾胡 | Automatic test apparatus for metallic material extension rate |
| CN201982890U (en) * | 2011-01-28 | 2011-09-21 | 北京豪特耐管道设备有限公司 | Prefabricated polyurethane foam insulating pipe for trenches |
| CN103292068A (en) * | 2013-06-04 | 2013-09-11 | 无锡金顶石油管材配件制造有限公司 | Insulation oil pipe with inside and outside reinforcing rib structures |
-
2013
- 2013-11-06 CN CN201310547855.1A patent/CN103557405B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2386313Y (en) * | 1999-08-19 | 2000-07-05 | 张礼扬 | Thermal insulation water drawing pipe for solar water heater |
| JP2005207592A (en) * | 2004-01-20 | 2005-08-04 | Gaz Transport & Technigaz | Heat insulating pipeline |
| CN101236040A (en) * | 2007-02-02 | 2008-08-06 | 财团法人工业技术研究院 | Combined coolant piping |
| CN101281077A (en) * | 2007-08-07 | 2008-10-08 | 陈宜中 | Water leakage heat absorption type pipeline leak detecting method |
| CN201277933Y (en) * | 2008-09-25 | 2009-07-22 | 曾胡 | Automatic test apparatus for metallic material extension rate |
| CN101413620A (en) * | 2008-11-26 | 2009-04-22 | 天津市军星管材制造有限公司 | Steel bushing steel vacuum high temperature steam prefabricated direct-buried thermal insulation pipe and producing method thereof |
| CN201982890U (en) * | 2011-01-28 | 2011-09-21 | 北京豪特耐管道设备有限公司 | Prefabricated polyurethane foam insulating pipe for trenches |
| CN103292068A (en) * | 2013-06-04 | 2013-09-11 | 无锡金顶石油管材配件制造有限公司 | Insulation oil pipe with inside and outside reinforcing rib structures |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103557405A (en) | 2014-02-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103557405B (en) | With prefabricated thermal isolated pipe production technology and the sash weight thereof of leakage monitoring system | |
| CN204062208U (en) | A kind of noise-reduction type insulation steam pipeline | |
| CN203273053U (en) | Prefabricated heat insulation pipeline | |
| CN104373713A (en) | Fiber fabric supported mean-speed air pipe system | |
| CN106195464B (en) | A kind of bamboo winding composite pressure pipe | |
| CN202927375U (en) | Thermal-insulating vertical pipe supporting ring | |
| CN207213339U (en) | A kind of cold insulation pipe carrier suitable for different size pipeline | |
| CN103383053A (en) | Heat-insulating structural part for pipeline | |
| CN106764256A (en) | A kind of heavy caliber high compressive strength insulating tube and its manufacture craft | |
| CN207005476U (en) | A kind of PP R polyurethane thermal pipes | |
| CN203705262U (en) | Plastic pipe tensile jig | |
| CN203979658U (en) | High-temperature pipe heat-insulation support and thermal insulation apparatus thereof | |
| CN203560653U (en) | Out-of-ground elbow pipe | |
| CN203757296U (en) | Anti-skid locating ring for heat preservation tube and heat preservation tube | |
| CN203453630U (en) | Steam shearing-resistant internal fixed support | |
| CN203892812U (en) | Axial thermal expansion heat insulation device | |
| CN206361261U (en) | A kind of novel pipeline support | |
| CN204986231U (en) | Low temperature medium transport uses adiabatic pipeline | |
| CN203348756U (en) | Novel compound insulation pipe | |
| CN208204223U (en) | A kind of nano silica aerogel blanket insulating tube and pipe fitting pipe | |
| RU185959U1 (en) | HEATED PIPE | |
| CN209925812U (en) | Can disk insulating tube | |
| CN205439398U (en) | Heat preservation device of insulation blanket and collection refrigeration and heating function | |
| CN205842103U (en) | The reinforced Thermal insulative pipe carrier of pressure piping | |
| CN210978983U (en) | Flexible heat-preservation detachable energy-saving shell of steam trap |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |