CN103574222B - A kind of water-proof horizontal pipe thermal-insulation structure - Google Patents
A kind of water-proof horizontal pipe thermal-insulation structure Download PDFInfo
- Publication number
- CN103574222B CN103574222B CN201210253696.XA CN201210253696A CN103574222B CN 103574222 B CN103574222 B CN 103574222B CN 201210253696 A CN201210253696 A CN 201210253696A CN 103574222 B CN103574222 B CN 103574222B
- Authority
- CN
- China
- Prior art keywords
- protective coating
- thermal
- steel shell
- unorganic glass
- outer tube
- 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
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
-
- 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
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
Abstract
A kind of water-proof horizontal pipe thermal-insulation structure of the present invention, described heat-insulating structure comprises insulation material layer, protective coating and sealing configuration; Described insulation material layer is wrapped in the outer surface of described pipeline, and described protective coating is split type protective coating, and described protective coating closely wraps up the outer surface being arranged on described insulation material layer; Described sealing configuration is arranged on split type protective coating and described thermal-protective material interlayer, for sealed heat insulating material.Water-proof horizontal pipe thermal-insulation structure of the present invention, this structure can make heat-insulating pipeline not easily deform to come off, and anti-sealing enters thermal-protective material simultaneously.
Description
Technical field
The present invention relates to pipe insulation construction applications, say further, relate to a kind of water-proof horizontal pipe thermal-insulation structure.
Background technique
Adopt the structure using galvanized sheet metal or aluminium alloy sheet to fix outside thermal-protective material in a large number for the pipe insulation of commercial plant in prior art, the pipeline caused when vibration or the change of pipeline wall temperature occur pipe-line system expands with heat and contract with cold, thermal protection layer can be caused to occur mutually to slide, and protective coating thin plate easily can be out of shape, come off, thus cause pipe insulation to lose efficacy, and waterproof cannot be closed.
Pipeline protection layer distortion, come off or mutually slide after, rain, snow and wet gas are easy to enter pipe insulation inside configuration, and the harm caused is mainly reflected in the following aspects:
1, water enters in heat-insulating structure process a large amount of energy losses, and water directly contacts high-temperature pipe outer wall, and heat transfer temperature difference is very large, and water can evaporate rapidly, and produce bubble generation strong agitation, heat-transfer coefficient increases.
2, water increases thermal-protective material thermal conductivity.Fiber thermoinsulation material has the advantages such as heatproof is high, insulation effect good, moderate, and be widely used in the engineering thermal insulation of high-temperature service, pipeline, but its moisture absorption easily losing efficacy by force, is but fatal shortcoming.
3, water enters heat-insulating structure process and can play a driving role to by the corrosion of heat-insulating pipeline and metal protection layer.
Generally speaking, the structural pipeline insulation system using galvanized sheet metal or aluminium alloy sheet to fix outside a large amount of employing thermal-protective material of the prior art has the shortcoming of following several respects: (1) thermal protection layer easily deforms, comes off; (2) thermal-protective material can not be entered by anti-sealing; Thus cause pipe insulation to lose efficacy.
Summary of the invention
For solving the above-mentioned problems in the prior art, the invention provides a kind of water-proof horizontal pipe thermal-insulation structure, this structure can make heat-insulating pipeline not easily deform to come off, and anti-sealing enters thermal-protective material simultaneously.
The object of the invention is to be achieved through the following technical solutions:
A kind of water-proof horizontal pipe thermal-insulation structure, described heat-insulating structure comprises insulation material layer, protective coating and sealing configuration; Described insulation material layer is wrapped in the outer surface of described pipeline, and described protective coating is split type protective coating, and described protective coating closely wraps up the outer surface being arranged on described insulation material layer; Described sealing configuration is arranged on split type protective coating and described thermal-protective material interlayer, for sealed heat insulating material.
Described split type protective coating at least comprises 2 Split protection outer tubes, and the caliber between described Split protection outer tube is different; Adopt between described Split protection outer tube the mouth of pipe be socketed mode, namely the protection outer tube mouth of pipe of Large Diameter Pipeline fits tightly on the outer wall of the protection outer tube of pipe with small pipe diameter, between be not fixedly connected with.
In order to supporting protection layer, described heat-insulating structure also comprises at least one pair of ballistic support assembly, and ballistic support assembly described in each is separately positioned in the outer insulation material layer between pipe internal surface and pipeline of described each root guard; And the socket place be fixed between Split protection outer tube, for supporting described protection outer tube.
Each ballistic support assembly described comprises supporting component thermal-protective material ring 6-1 and unorganic glass outer steel shell 6-2; Described unorganic glass outer steel shell 6-2 is fixedly sleeved on the outer surface of described supporting component thermal-protective material ring 6-1;
Described ballistic support assembly is arranged in insulation material layer 2, namely the left and right sides end face of described unorganic glass outer steel shell 6-2 and described insulation material layer 2 affixed; Two pieces support set up between be partially filled thermal-protective material 2; The part annular end face of described unorganic glass outer steel shell 6-2 is connected with described protective coating.
In order to prevent thermal-protective material from contacting with water, be provided with sealing configuration between the annular end face of described unorganic glass outer steel shell 6-2 and described protective coating, described sealing configuration is gasket ring 7, for sealing described insulation material layer.
Fixed component is provided with between the annular end face of described unorganic glass outer steel shell 6-2 and the described protective coating being provided with sealing configuration, described fixed component is one group of rivet, described rivet is by described protective coating, and gasket ring 7 and unorganic glass outer steel shell 6-2 are fixed together.
In order to as early as possible the liquid flowed in protective coating be derived, intake chute 9 is provided with between the annular end face of described unorganic glass outer steel shell 6-2 and described protective coating, namely annular end face one end of described unorganic glass outer steel shell 6-2 is connected with described protective coating, is described intake chute 9 between all the other annular end faces and described protective coating internal surface.
In order to stop large quantity of fluid to enter, in described intake chute 9, the inner wall surface direction along described protective coating is provided with dash hoop 5.In described intake chute 9, the inner wall surface direction along described protective coating is provided with dash hoop 5; Described dash hoop 5 is 2 millimeters with the gap of described unorganic glass outer steel shell 6-2 outer surface; And be 5 millimeters with the gap of described protective coating; Described dash hoop 5 is enclosed within the riveted joint of described unorganic glass outer steel shell 6-2 upper end portion.What arrange in dash hoop is thermal-protective material 2.
Liquid is derived by the present invention, described protective coating is provided with weep hole 10, and described weep hole 10 is arranged on the bottom of overall heat-insulating structure, the joint of described split type protective coating.
In concrete enforcement, described split type protective coating comprises 2 Split protection outer tubes: protection outer tube 1 and protection outer tube 28, and the caliber between described 2 Split protection outer tubes is different; Adopt between described Split protection outer tube the mouth of pipe be socketed mode, namely the protection outer tube mouth of pipe of Large Diameter Pipeline fits tightly on the outer wall of the protection outer tube of pipe with small pipe diameter, between be not fixedly connected with;
Described heat-insulating structure also comprises 2 ballistic support assemblies, and described 2 ballistic support assemblies are separately positioned in the outer insulation material layer between pipe internal surface and pipeline of described 2 root guards; And the socket place be fixed between Split protection outer tube, for supporting described protection outer tube;
Described 2 ballistic support assemblies comprise supporting component hard insulating material ring 6-1 and unorganic glass outer steel shell 6-2; Described unorganic glass outer steel shell 6-2 is fixedly sleeved on the outer surface of described supporting component thermal-protective material ring 6-1;
Described ballistic support assembly is arranged in insulation material layer 2, namely the left and right sides end face of described unorganic glass outer steel shell 6-2 and described insulation material layer 2 affixed; The part annular end face of described unorganic glass outer steel shell 6-2 is connected with described protective coating 3;
Be provided with gasket ring 7 between the annular end face of described unorganic glass outer steel shell 6-2 and described protective coating 3, described gasket ring 7 is nonmetal gasket ring, for sealing described insulation material layer;
Fixed component is provided with between the annular end face of described unorganic glass outer steel shell 6-2 and the described protective coating 3 being provided with sealing configuration, described fixed component is 2 rivets, described rivet is by described protective coating 3, and gasket ring 7 and unorganic glass outer steel shell 6-2 are fixed together.
Described thermal-protective material is the one in alumina silicate heat-preservation cotton, composite silicate thermal insulation cotton, Magnesiumaluminumsilicate heat-preservation cotton; The density of described thermal-protective material ring 6-1 is greater than described thermal-protective material, can heat insulationly can play a supportive role again.
The present invention is provided with gutter channel at the outer surface of supporting component, the surface that protection outer tube one docks overlapping with protection outer tube two is provided with weep hole, even if the gap between protection outer tube one and protection outer tube two enters water, due to supporting component respectively and protection outer tube one and protecting between outer tube two be tightly connected, water can only from below the gutter channel of the outer surface of supporting component flows to, finally spill out from protection outer tube one with the hole protecting corresponding position above outer tube two, water can not contact with thermal-protective material.
Linkage structure like this can under pipeline generation thermal distortion or Vibration Condition, and heat-insulating structure do not have infiltration, crackle yet, loosely stitch, the situation such as to fall occurs, and improves the heat-shielding performance of pipeline, avoids the lost of conduits of energy.Water-proof horizontal pipe thermal-insulation structure of the present invention may be used for the new device in the industrial enterprises such as oil, petrochemical industry, electric power, the horizontal pipe heat-insulating structure in existing apparatus transformation.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of a kind of water-proof horizontal pipe thermal-insulation structure of the present invention.
1 pipeline; 2 insulation material layers; 3 protection outer tubes one; 4 rivets; 5 dash hoops; 6 ballistic support assemblies; 6-1 is supporting component thermal-protective material ring; 6-2 is unorganic glass outer steel shell; 7 gasket rings; 8 protection outer tubes two; 9 intake chutes; 10 is weep hole
Embodiment
Below in conjunction with embodiment, further illustrate the present invention.
Below in conjunction with accompanying drawing, the present invention is described in further detail: the present embodiment is implemented under premised on technical solution of the present invention, gives detailed mode of execution, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, a kind of water-proof horizontal pipe thermal-insulation structure involved by the present embodiment, comprise: thermal-protective material 2, protection outer tube 1, rivet 4, dash hoop 5, supporting component 6, nonmetallic material gasket ring 7 and protection outer tube 28, described thermal-protective material 2 is coated on the outer wall of pipeline 1, a ballistic support assembly 6 is respectively equipped with inside the joint of protection outer tube 1 and protection outer tube 28, the thermal-protective material 2 of one end and the outside of ballistic support assembly 6 are coated with protection outer tube 1, nonmetallic material gasket ring 7 is provided with between protection outer tube 1 and ballistic support assembly 6, rivet 4 is through protection outer tube 1, between nonmetallic material gasket ring 7 and ballistic support assembly 6, the thermal-protective material 2 of the other end and the outside of ballistic support assembly 6 are coated with protection outer tube 28, nonmetallic material gasket ring 7 is provided with between protection outer tube 28 and ballistic support assembly 6, rivet 4 is through protection outer tube 28, between nonmetallic material gasket ring 7 and ballistic support assembly 6, the gap location of two ballistic support assemblies 6 is provided with dash hoop 5, the external diameter of protection outer tube 1 is less than the external diameter of protection outer tube 28, protection outer tube 1 and the joint of protection outer tube 28 protect outer tube 28 and are enclosed within and protect on outer tube 1, the outer surface of described ballistic support assembly 6 is provided with gutter channel 9.
Described protection outer tube 1 is respectively equipped with weep hole 10 with the bottom of protection outer tube 28 joint.
Described supporting component 6 is made up of hard insulating material 6-1 and unorganic glass outer steel shell 6-2, and unorganic glass outer steel shell 6-2 is coated on the outside of hard insulating material 6-1.
The above; be only a kind of embodiment of the present invention; other mode of executions are all based on the different implementations under general idea of the present invention; and protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (10)
1. a water-proof horizontal pipe thermal-insulation structure, is characterized in that:
Described heat-insulating structure comprises insulation material layer, protective coating and sealing configuration; Described insulation material layer is wrapped in the outer surface of described pipeline, and described protective coating is split type protective coating, and described protective coating closely wraps up the outer surface being arranged on described insulation material layer; Described sealing configuration is arranged on split type protective coating and described thermal-protective material interlayer, for sealed heat insulating material; Described protective coating is provided with weep hole (10), and described weep hole (10) is arranged on the bottom of described heat-insulating structure, the joint of described split type protective coating.
2. a kind of water-proof horizontal pipe thermal-insulation structure according to claim 1, is characterized in that:
Described split type protective coating at least comprises 2 Split protection outer tubes, and the caliber between described Split protection outer tube is different; Adopt the mouth of pipe to be socketed mode between described Split protection outer tube, namely the Split protection outer tube mouth of pipe of Large Diameter Pipeline fits tightly on the outer wall of the Split protection outer tube of pipe with small pipe diameter, is not fixedly connected with between the Split protection outer tube of Large Diameter Pipeline and the Split protection outer tube of pipe with small pipe diameter.
3. a kind of water-proof horizontal pipe thermal-insulation structure according to claim 2, is characterized in that:
Described heat-insulating structure also comprises at least one pair of ballistic support assembly, and ballistic support assembly described in each is separately positioned in the outer insulation material layer between pipe internal surface and pipeline of described each Split protection; And the socket place be fixed between Split protection outer tube, for supporting described Split protection outer tube.
4. a kind of water-proof horizontal pipe thermal-insulation structure according to claim 3, is characterized in that:
Each ballistic support assembly described comprises supporting component thermal-protective material ring (6-1) and unorganic glass outer steel shell (6-2); Described unorganic glass outer steel shell (6-2) is fixedly sleeved on the outer surface of described supporting component thermal-protective material ring (6-1);
Described ballistic support assembly is arranged in insulation material layer (2), namely the left and right sides end face of described unorganic glass outer steel shell (6-2) and described insulation material layer (2) affixed; The part annular end face of described unorganic glass outer steel shell (6-2) is connected with described protective coating.
5. a kind of water-proof horizontal pipe thermal-insulation structure according to claim 4, is characterized in that:
Be provided with sealing configuration between the annular end face of described unorganic glass outer steel shell (6-2) and described protective coating, described sealing configuration is gasket ring (7), for sealing described insulation material layer.
6. a kind of water-proof horizontal pipe thermal-insulation structure according to claim 5, is characterized in that:
Fixed component is provided with between the annular end face of described unorganic glass outer steel shell (6-2) and the described protective coating being provided with sealing configuration, described fixed component is one group of rivet, described rivet is by described protective coating, and gasket ring (7) and unorganic glass outer steel shell (6-2) are fixed together.
7. a kind of water-proof horizontal pipe thermal-insulation structure according to claim 4, is characterized in that:
Intake chute (9) is provided with between the annular end face of described unorganic glass outer steel shell (6-2) and described protective coating, namely annular end face one end of described unorganic glass outer steel shell (6-2) is connected with described protective coating, is described intake chute (9) between all the other annular end faces and described protective coating internal surface.
8. a kind of water-proof horizontal pipe thermal-insulation structure according to claim 7, is characterized in that:
In described intake chute (9), the inner wall surface direction along described protective coating is provided with dash hoop (5); Described dash hoop (5) is 2 millimeters with the gap of described unorganic glass outer steel shell (6-2) outer surface; And be 5 millimeters with the gap of described protective coating; Described dash hoop (5) is enclosed within described unorganic glass outer steel shell (6-2) upper end portion and rivets.
9. a kind of water-proof horizontal pipe thermal-insulation structure according to claim 1, is characterized in that:
Described split type protective coating comprises 2 Split protection outer tubes, and the caliber between described 2 Split protection outer tubes is different; Adopt the mouth of pipe to be socketed mode between described Split protection outer tube, namely the Split protection outer tube mouth of pipe of Large Diameter Pipeline fits tightly on the outer wall of the Split protection outer tube of pipe with small pipe diameter, is not fixedly connected with between the Split protection outer tube of Large Diameter Pipeline and the Split protection outer tube of pipe with small pipe diameter;
Described heat-insulating structure also comprises 2 ballistic support assemblies, and described 2 ballistic support assemblies are separately positioned in the outer insulation material layer between pipe internal surface and pipeline of described 2 Split protections; And the socket place be fixed between Split protection outer tube, for supporting described Split protection outer tube;
Described 2 ballistic support assemblies comprise supporting component thermal-protective material ring (6-1) and unorganic glass outer steel shell (6-2); Described unorganic glass outer steel shell (6-2) is fixedly sleeved on the outer surface of described supporting component thermal-protective material ring (6-1);
Described ballistic support assembly is arranged in insulation material layer (2), namely the left and right sides end face of described unorganic glass outer steel shell (6-2) and described insulation material layer (2) affixed; The part annular end face of described unorganic glass outer steel shell (6-2) is connected with described protective coating (3);
Gasket ring (7) is provided with between the annular end face of described unorganic glass outer steel shell (6-2) and described protective coating (3), described gasket ring (7) is nonmetal gasket ring, for sealing described insulation material layer;
Fixed component is provided with between the annular end face of described unorganic glass outer steel shell (6-2) and the described protective coating (3) being provided with sealing configuration, described fixed component is 2 rivets, described rivet is by described protective coating (3), and gasket ring (7) and unorganic glass outer steel shell (6-2) are fixed together.
10. a kind of water-proof horizontal pipe thermal-insulation structure according to claim 4 or 9, is characterized in that:
The thermal-protective material of described insulation material layer is the one in alumina silicate heat-preservation cotton, composite silicate thermal insulation cotton, Magnesiumaluminumsilicate heat-preservation cotton; The density of described thermal-protective material ring (6-1) is greater than the density of the thermal-protective material of described insulation material layer, can heat insulationly can play a supportive role again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210253696.XA CN103574222B (en) | 2012-07-20 | 2012-07-20 | A kind of water-proof horizontal pipe thermal-insulation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210253696.XA CN103574222B (en) | 2012-07-20 | 2012-07-20 | A kind of water-proof horizontal pipe thermal-insulation structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103574222A CN103574222A (en) | 2014-02-12 |
| CN103574222B true CN103574222B (en) | 2015-11-18 |
Family
ID=50046631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210253696.XA Active CN103574222B (en) | 2012-07-20 | 2012-07-20 | A kind of water-proof horizontal pipe thermal-insulation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103574222B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594702A (en) * | 2020-05-29 | 2020-08-28 | 杜宏德 | Construction method for heat insulation repair-performance enhancement of heat insulation material |
| CN114484154A (en) * | 2022-01-29 | 2022-05-13 | 北京天济明科技有限公司 | Low-deformation small-gap high-sealing special-shaped-section high-temperature pipeline heat insulation system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4287245A (en) * | 1978-04-28 | 1981-09-01 | Nippon Asbestos Co., Ltd. | Heat insulator for pipe lines |
| DE3420937A1 (en) * | 1983-06-24 | 1985-01-03 | Zappey B.V., Schoonebeek | Injection pipe for injecting steam into the ground |
| CN1067952A (en) * | 1991-06-20 | 1993-01-13 | 广饶县稻庄镇散热器厂 | Glass fibre reinforced plastics jacketed heat insulating pipeline and forming method thereof |
| CN1163658A (en) * | 1994-08-29 | 1997-10-29 | 格伦·R·萨姆纳 | Offshore pipeline with waterproof thermal insulation |
| US6921564B1 (en) * | 1998-05-04 | 2005-07-26 | Kaefer Integrated Services Pty Ltd | Insulation module, system and method for installation and manufacture |
| CN201696810U (en) * | 2010-04-14 | 2011-01-05 | 盘锦辽河油田辽南集团有限公司 | Compressible dual-sealing heat-insulating joint |
-
2012
- 2012-07-20 CN CN201210253696.XA patent/CN103574222B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4287245A (en) * | 1978-04-28 | 1981-09-01 | Nippon Asbestos Co., Ltd. | Heat insulator for pipe lines |
| DE3420937A1 (en) * | 1983-06-24 | 1985-01-03 | Zappey B.V., Schoonebeek | Injection pipe for injecting steam into the ground |
| CN1067952A (en) * | 1991-06-20 | 1993-01-13 | 广饶县稻庄镇散热器厂 | Glass fibre reinforced plastics jacketed heat insulating pipeline and forming method thereof |
| CN1163658A (en) * | 1994-08-29 | 1997-10-29 | 格伦·R·萨姆纳 | Offshore pipeline with waterproof thermal insulation |
| US6921564B1 (en) * | 1998-05-04 | 2005-07-26 | Kaefer Integrated Services Pty Ltd | Insulation module, system and method for installation and manufacture |
| CN201696810U (en) * | 2010-04-14 | 2011-01-05 | 盘锦辽河油田辽南集团有限公司 | Compressible dual-sealing heat-insulating joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103574222A (en) | 2014-02-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202955418U (en) | Steam direct buried pipe composite thermal insulation structure | |
| CN104948872A (en) | Expansion joint provided with elastic sealing structure and used for thermal insulation pipeline | |
| CN103574222B (en) | A kind of water-proof horizontal pipe thermal-insulation structure | |
| CN201363512Y (en) | Vacuum heat-insulation high-temperature pipeline | |
| CN101922596B (en) | Thermal insulation pipe support | |
| CN203230966U (en) | Conveying pipeline with multilayer composite heat insulation structure | |
| CN103195985A (en) | Conveying pipe with multilayer composite heat insulation structure | |
| CN210661707U (en) | Polyethylene pipeline for water supply | |
| CN201255291Y (en) | Combination insulating pipes for Steel coated steel prefabricated direct-burried thermal insulation pipeline | |
| CN202521164U (en) | Energy-saving vacuum sealing device | |
| CN204328236U (en) | The standoff new type compound Glass Steel Tube of a kind of band | |
| CN202691450U (en) | Thermal insulation structure of waterproof pipeline | |
| CN101943298A (en) | Vacuum composite delivery pipe and connecting structure | |
| CN202252627U (en) | Petroleum pipeline connecting piece with anti-corrosion performance | |
| CN202074192U (en) | Heat preservation protecting hood of elbow | |
| CN202927374U (en) | Waterproof horizontal pipeline heat preserving device | |
| CN102588710A (en) | Heat insulation pipe sleeve using glass vacuum tubes as heat insulation layers | |
| CN204328251U (en) | The standoff compound thermal insulation pipe of a kind of band | |
| CN102537592B (en) | Waterproof thermal-insulation device for hot medium transportation pipeline | |
| CN214305650U (en) | High-performance mechanical equipment anti-corrosion heat-insulation pipe | |
| CN212073129U (en) | Heat-insulating aluminum alloy square tube | |
| CN202442068U (en) | Waterproof heat insulating device of hot medium conveying pipeline | |
| CN217272861U (en) | Prefabricated insulating tube of direct-burried | |
| CN219674905U (en) | Oil chamber structure of heat exchanger | |
| CN210424189U (en) | Compound type shockproof overhead thermal insulation pipe |
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 | ||
| CP03 | Change of name, title or address |
Address after: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee after: SINOPEC Group Patentee after: Sinopec Engineering Construction Co., Ltd Address before: 100728 Chaoyang District, Beijing 22 Chaoyang men North Street, Chaoyang District, Beijing Patentee before: CHINA PETROLEUM & CHEMICAL Corp. Patentee before: Sinopec Engineering Construction Co., Ltd |
|
| CP03 | Change of name, title or address |