CN112833260A - Assembled electric heating insulation water pipe - Google Patents
Assembled electric heating insulation water pipe Download PDFInfo
- Publication number
- CN112833260A CN112833260A CN201911237803.8A CN201911237803A CN112833260A CN 112833260 A CN112833260 A CN 112833260A CN 201911237803 A CN201911237803 A CN 201911237803A CN 112833260 A CN112833260 A CN 112833260A
- Authority
- CN
- China
- Prior art keywords
- pipe
- electric heating
- component
- wire
- water pipe
- 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.)
- Pending
Links
Images
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
- F16L9/00—Rigid pipes
- F16L9/12—Rigid pipes of plastics with or without reinforcement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
- F16L53/30—Heating of pipes or pipe systems
- F16L53/35—Ohmic-resistance heating
- F16L53/38—Ohmic-resistance heating using elongate electric heating elements, e.g. wires or ribbons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Resistance Heating (AREA)
- Pipe Accessories (AREA)
Abstract
The invention relates to an assembled electric heating heat preservation water pipe: the tubular electric heating component is sleeved on the water delivery pipe and comprises a base pipe, an adhesion layer, an electric heating wire layer, a moisture-proof sealing layer, a heat insulation pipe, a hard protection pipe and a positioning plug between the base pipe and the hard protection pipe; a preset power line and a control line are arranged in the protective tube, the power line is connected with the electric heating wire, and two ends of the power line penetrate through the positioning plugs to extend out; the components have several length, power specifications. The water pipe covers the rest part of the tubular electric heating component and is sequentially wrapped by the rest section of heat insulation pipe and the rest section of hard protection pipe, and the two ends of the rest section of hard protection pipe are fixed between the water pipe and the rest section of hard protection pipe by the rest section of positioning plug; and a residual section power wire and a control wire are arranged in the residual section hard protection tube, one end of the residual section power wire is connected with an electric wire arranged in the tubular electric heating component, and the other end of the residual section power wire penetrates through the residual section positioning plug to extend out.
Description
Technical Field
The invention relates to the field of electric heating and heat preservation of water pipes, in particular to the field of an assembled electric heating and heat preservation water pipe.
Background
In the household, office, business or other domestic water occasions, the water pipe is insulated, so that the water resource waste caused by that the hot water is stopped in the pipe for too long time to cool, the water feeling is poor and the cooled water is discharged can be prevented; and the frost crack accident of the water pipe in winter can be prevented. The water pipe is provided with the electric heating element to carry out energy compensation type heat preservation, and the water pipe heat preservation device is a better technology in the field of water pipe heat preservation. However, the prior art still has the following disadvantages: the electric heating wire is installed on the water pipe by adopting a field manual mode, so that the working is time-consuming, the efficiency is low, the cost is high, and the quality is difficult to ensure; the power supply line pipe and the heat preservation water pipe are respectively arranged, so that the installation cost is doubled; the moisture-proof measures are not considered enough, and the water pipe can not adapt to the working conditions that the existing house decoration is carried out, most water pipes are buried underground in the wall and are used under the humid condition.
Disclosure of Invention
The present invention is intended to solve at least the above problems and also to provide the following advantages:
the invention provides an assembled electric heating heat preservation water pipe, when in installation, a tubular electric heating component with a specification is sleeved on all the pipe sections or the main pipe section of the water pipe, the remaining part of the water pipe which can not be covered by the tubular electric heating component is added with a heat insulation pipe and a protection pipe, and the electric heating component can compensate heat loss for the whole water pipe by utilizing the heat transfer performance of the water pipe and water.
The tubular electric heating component is formed by arranging auxiliary objects such as an electric heating wire, a heat insulation layer and the like on a section of base pipe which can be sleeved on a water pipe, and is designed into a plurality of specifications of length and electric heating power specifications from short to long, so that the tubular electric heating component not only meets different requirements of different sizes of pipe sections on site on heat compensation, but also is convenient for mass production in a factory, the product quality of the electric heating component can be improved, and the manufacturing and installation costs are reduced.
The invention also provides a structure of the multipurpose outer protection pipe: the tubular electric heating component sleeved outside the water pipe and the outermost layer of the remaining section of the water pipe covered by the tubular electric heating component are provided with hard protection pipes. The electric wires are arranged in the pipe, and an electric wire distribution protection pipe is not needed to be additionally arranged, so that the construction cost is saved, and the heat insulation performance is improved; through selecting the material, can also increase the decoration function of heat preservation water pipe, use the occasion of wall external installation at heat preservation water pipe, beneficial improvement product grade.
The invention also provides a damp-proof scheme with multiple measures, wherein a damp-proof sealing layer is additionally arranged outside the electric heating wire, positioning plugs are arranged between the two ends of the protection tube and the water tube and between the two ends of the protection tube and the base tube for sealing, and joints between the electric wires are subjected to damp-proof treatment, so that the assembled electric heating heat-preservation water tube has a good damp-proof function.
To achieve the above objects and advantages of the present invention, there is provided an assembled electric heating insulation water pipe, comprising:
the water pipe is made of metal or plastic or composite material of the metal and the plastic.
The tubulose electric heating part of cover on the water pipe has following structure:
the base pipe is a section of hard round pipe which can be tightly sleeved outside the water pipe, is made of metal and plastic materials, and is used for supporting elements such as an electric heating wire and the like and protecting the elements from being scratched when the water pipe passes through the base pipe; from short to long, the pipe is designed into a plurality of length specifications, and the specification considers the requirement of covering the pipe sections with different lengths as much as possible;
the adhesion layer is used for preventing accidents caused by the fact that the position of the electric heating wire moves in the transportation and installation processes of the tubular electric heating component, the electric heating wire is adhered and fixed on the base pipe, and a temperature-resistant flame-retardant insulating double-sided adhesive tape is used for rubberizing;
the electric heating wire layer is used for uniformly winding and attaching the electric heating wire outside the adhesion layer, and the electric heating wire is powered by civil alternating current without voltage transformation equipment, so that the electric heating wire is convenient and low in cost;
the moisture-proof sealing layer is arranged outside the electric heating wire layer, plays a role of moisture protection when the tubular electric heating component is buried underground in a wall or used under a humid working condition, and is a rubber plastic sealing material;
the heat insulation pipe is made of a heat insulation material wrapped outside the moisture-proof sealing layer, so that hot water in the water pipe and heat loss of the electric heating part are prevented, and energy is saved;
the part protection tube is a metal or hard plastic round tube outside the part heat insulation tube, plays a role in protecting the internally arranged electric wires and other elements and also plays a role in sealing, decoration and heat preservation, the part protection tube has the same length with the base tube and is slightly longer than other tubes and layers, and positions for installing part positioning plugs and the like are left;
the component positioning plugs are made of plastics or metal, are tightly embedded between the outer side surfaces of the two ends of the base pipe and the inner side surface of the component protection pipe, are used for fixing the space positions of the base pipe and the component protection pipe, and also play a role in sealing, the contact surface has a moisture-proof gas infiltration function, and the tightness refers to a slightly tight transition fit design;
the parts are internally provided with electric wires which are preset in the protective tube, and the wire ends of the parts penetrate through the positioning plugs at the two ends to be exposed outside and are connected with other tubular electric heating parts or sensors, a controller and a power supply. The wire connector has a waterproof function. The power supply connector lug of the electric heating wire is connected with the power supply through the inner electric wire of the component protection tube to receive power.
When a certain pipe section of a water pipe is covered by a tubular electric heating part with the specification, the residual part which cannot be covered is generated, including pipe fittings such as a elbow and the like, and the residual part is called as a residual section, and the structure is as follows:
the rest section of the heat insulation pipe is made of flame-retardant heat insulation material and is directly wrapped outside the water pipe;
the remaining section protection pipe is a hard circular pipe, surrounds the remaining section heat insulation pipe, is used for protecting elements such as an internal electric wire and the like, and has the same material, diameter and wall thickness parameters as the component protection pipe of the tubular electric heating component;
the lengths of the remaining section heat insulation pipe and the remaining section protection pipe are determined according to the actual sizes of the water pipe sections one by one during field installation;
the residual section positioning plug is embedded between the inner sides of the two ends of the residual section protection pipe and the outer side of the water pipe, the residual section protection pipe is fixed on the water pipe to play a role in fixing and sealing, and the tightness of a contact surface refers to a loose clearance fit design;
the material, the drift diameter and the wall thickness of the remaining section of the protection pipe elbow are the same as those of the component protection pipe; the protection pipe elbow is symmetrically and integrally divided into two halves, so that the problem that the water pipe elbow with the residual section of the heat insulation pipe cannot pass through the protection pipe elbow after being installed is solved; the remaining segment of the protection pipe elbow is buckled on the positioning plug and fixed by a fastener; installing other pipe fittings on the residual section protection pipe, and processing according to the disposal method of the residual section protection pipe and the protection pipe elbow;
the residual section is internally provided with electric wires, is arranged in the residual section protection pipe and the elbow, passes through the positioning plugs at the two ends and is connected with the tubular electric heating component or the sensor, the controller and the power supply, and the joint adopts a waterproof wire joint.
Furthermore, the base pipe is a thin-wall stainless steel round pipe or a polyvinyl chloride hard plastic pipe, and is designed with several length specifications; the clearance between the inner diameter of the base pipe and the outer diameter of the water pipe is 0.10-1.0 mm, so that the base pipe and the water pipe are tightly attached, and the thermal resistance is reduced.
Furthermore, the adhesion layer is a double-sided adhesive tape with glass fiber cloth and a temperature-resistant plastic adhesive tape as a base layer, and wraps the part of the base pipe, on which the electric heating wire is wound, so as to fix the electric heating wire.
Furthermore, the electric heating wire layer is a bare wire or a wrapped wire of a carbon fiber electric heating wire, and is uniformly wound outside the adhesion layer, the specification of the carbon fiber electric heating wire is 0.5K-12K, and the loop distance is more than 3 mm; several specifications are designed corresponding to the short to long base pipe and the small to large electric heating wire power so as to meet the requirement of compensating heat energy of water pipe sections with different lengths on an installation site; the power of the electric heating wires wound on the axial unit length is equal, so that the heating rates of the water pipe sections with different lengths are approximately the same, and the local overheating of the water pipe sections is avoided; in order to meet the requirements of different application situations, the heat compensation speed is different, and the power of the heating wire in the axial unit length can be made into a plurality of different series; the electric heating elements of the electric heating element layer are connected with a power supply to receive power through an internal electric wire; the maximum temperature of the heating part of the electric heating element is not more than 120 ℃.
Furthermore, the dampproof sealing layer is a flame-retardant polyvinyl chloride glue-containing or flame-retardant high-temperature-resistant polyester glue-containing heat-shrinkable sleeve, the shrinkage ratio is more than 2 times, the heating wire is shrunk, adhered and fixed, and meanwhile, the dampproof sealing layer plays a role in sealing.
Furthermore, the heat insulation pipe of the component and the heat insulation pipe of the rest section are flexible pipes which are formed by a polyethylene or polyurethane heat insulation foam pipe with a flame retardant inner layer and an aluminum foil layer.
The invention at least comprises the following beneficial effects:
first, through tubular electric heating element on the water pipe cover to and remaining section water pipe is equipped with insulating tube and protection tube, except reaching the heat that compensates the water pipe loss, compare with prior art scheme, the installation is swift, and the time is saved by 60%, and installation cost reduces more than 70%.
Second, by mass producing several sizes of tubular electric heating components in a factory, the factory production saves 60% of cost and the failure rate of the components is substantially eliminated compared to on-site manufacturing.
Thirdly, the tubular electric heating component is provided with a protection pipe by being sleeved on the water pipe, or the remaining section of the water pipe is provided with the protection pipe to replace the function of an electric wire distribution protection pipe. Compared with the prior art, the construction cost of the wire distribution protection tube is saved, the heat insulation performance is improved, and the energy is saved by more than 15%; the protective pipe has decorative appearance, and is used for additionally arranging the heat-insulating water pipe on the wall surface of a decorated house, so that a new market application scene can be developed. The scheme can additionally expand the new market share by 30 percent.
Fourthly, tightly wrapping the electric heating wire by arranging a protection tube and a sealing moisture-proof layer; positioning the contact part of the plug and various pipes, and performing sealing design; the wire joint selects a waterproof joint, and the moisture resistance of the assembled electric heating heat-preservation water pipe is greatly improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principle of the invention.
Shown in the figure are: a water pipe (1); the electric heating device comprises a tubular electric heating component (2), a base pipe (21), an adhesion layer (22), an electric heating wire layer (23), a component moisture-proof layer (24), a component heat insulation pipe (25), a component protection pipe (26), an electric wire (27) arranged in the component, and a component positioning plug (28); the remaining section is a heat insulation pipe (3); a remaining section protection tube (4); the remaining section positioning plug (5); a water pipe elbow (6); a protection pipe elbow (7); the remaining section is provided with an electric wire (8) and a waterproof wire joint (81); a fastener (9).
Detailed Description
Example 1
The basic structure of the assembled electric heating heat preservation water pipe is as shown in the attached drawings:
the water pipe (1) is a stainless steel water pipe and is connected by a thread, welding or press-clamping type pipe fitting;
the base pipe (21) is a thin-wall stainless steel welding circular pipe, is fireproof and corrosion-resistant, and has good heat transfer performance; the wall thickness is 0.2 mm-1.0 mm, the length specifications are 2m, 1m, 0.5m and 0.25m, and the water pipe (1) and the base pipe (21) are made of metal materials with good heat conductivity, so that the water pipe can be applied to occasions where heat is rapidly compensated;
the adhesion layer (22) is a double-sided adhesive tape taking alkali-free glass fiber cloth as a base layer and a flame-retardant heat-resistant glue layer, and the electric heating wire (23) is adhered and fixed on the base pipe (21);
heating wire (23), for carbon fiber electric heating wire bare filament, the specification is 1K ~ 12K, twines on adhesion layer (22), and the loop distance is greater than 3mm, according to different operation requirements, per meter heater strip axial length electric power is the third grade: 5 w-10 w, 10 w-20 w and 20 w-30 w, wherein the highest temperature of the heating position of the electric heating element is not more than 120 ℃;
the damp-proof sealing layer (24) adopts a flame-retardant polyvinyl chloride rubber-containing heat-shrinkable rubber tube, the shrinkage ratio is more than 2 times, and the heat-shrinkable temperature is below 120 ℃, so that the electric heating wire layer (23) is adhered and sealed;
the component heat insulation pipe (25) is a flame-retardant polyethylene foam pipe externally attached with a heat radiation-proof aluminum foil;
a component protection tube (26) which is a stainless steel welded tube and has a decoration function;
the component positioning plug (28) is made of stainless steel, and is in contact with the inner diameter of the component protection tube (26) and the outer diameter of the base tube (21), the contact surface has the function of preventing moisture from permeating, and the tightness is designed according to tight transition fit;
the component is provided with an electric wire (27) inside, and the component is divided into two or more component power wires and control wires in a component protection tube (26);
the remaining section of the heat insulation pipe (3) is a flame-retardant polyethylene foam pipe externally attached with a heat radiation-proof aluminum foil;
the material, the drift diameter and the wall thickness of the remaining section protection tube (4) and the elbow (9) are the same as those of the protection tube (26) of the tubular electric heating component (22), so that the assembly and the matching are convenient, and the appearance consistency of the pipeline is kept;
the residual section positioning plug (5) is a stainless steel welded pipe, and is in contact with the inner diameter of the residual section protection pipe (4) and the outer diameter of the water pipe (1), and the tightness is designed according to loose transition fit;
the lengths of the residual section heat insulation pipe (3) and the residual section protection pipe (4) are determined according to the actual length of the residual section installed on site;
the remaining section is internally provided with electric wires (8) which comprise two or more than two power wires and control wires respectively and are arranged in the remaining section protection tube (4) or the protection tube elbow (7), one end of the internally provided electric wire (8) is connected with the part internally provided electric wire (27) exposed out of the tubular electric heating part (2), the other end of the internally provided electric wire penetrates through the remaining section positioning plug (8) and is connected with the other part internally provided electric wire (27) or a control element or a power supply, and the electric wire connector (81) is a waterproof connector;
the pipe fittings such as the rest section protection pipe elbow (7) and the like are symmetrically and integrally divided into two parts, the two parts are buckled on the rest section positioning plug (5) and fixed by a screw (9), and other types of pipe fittings of the rest section protection pipe (4) are installed according to the installation method of the protection pipe elbow (7) and the rest section protection pipe (4).
Example 2
The basic structure of the assembled electric heating heat preservation water pipe is shown in the attached drawings:
the various plastic pipes of the water pipe (1) are connected by a hot melting method through pipe fittings.
The base pipe (21) is a flame-retardant polyvinyl chloride (polyvinyl chloride) thin-wall circular pipe. The wall thickness is 0.5 mm-1.5 mm, and the length specifications are 2m, 1m, 0.5m and 0.25 m; the water pipe (1) and the base pipe (21) are made of plastic materials, so that the heat-insulating effect is good, and the cost is low.
The adhesion layer (22) is a flame-retardant heat-resistant polyester film double-sided tape, and the electric heating wire (23) is adhered and fixed on the base pipe (21);
the electric heating wire layer (23) is a silica gel coated carbon fiber electric heating wire with the specification of 0.5K-12K, is wound on the adhesion layer (22), the loop distance is larger than 3mm, and according to different use requirements, the electric power of the axial unit length of the heating wire is three grades: 5 w-10 w, 10 w-20 w and 20 w-30 w, wherein the highest temperature of the heating position of the electric heating element is not more than 120 ℃;
the damp-proof sealing layer (24) is a flame-retardant temperature-resistant polyester glue-containing heat-shrinkable tube, the shrinkage ratio is more than 2 times, and the heat-shrinkable tube is shrunk at the temperature of below 120 ℃ to adhere and seal the electric heating wire (23);
the component heat insulation pipe (25) is a flame-retardant polyurethane foam pipe externally attached with a heat radiation prevention aluminum foil;
the component protection tube (26) and the polyvinyl chloride plastic tube have the advantages of flame retardance, insulation, good heat preservation performance and low cost;
the part positioning plug (28) is made of flame-retardant polyvinyl chloride; the inner diameter of the component protection tube (26) is in contact with the outer diameter of the base tube (21), the contact surface has the function of preventing moisture gas from permeating, and the tightness refers to a tight transition fit design;
the component is provided with an electric wire (27), and two or more component power supply wires and control wires are respectively arranged in the component heat insulation pipe (25) and the component protection pipe (26).
The remaining section of the heat insulation pipe (3) is a flame-retardant polyurethane foam pipe externally attached with a heat radiation prevention aluminum foil;
the material, the drift diameter and the wall thickness of the remaining section protection tube (4) and the protection tube elbow (7) are the same as those of the protection tube (26) of the tubular electric heating component (2), so that the assembly and the matching are convenient, and the appearance of the pipeline is kept consistent;
the residual section positioning plug (5) is made of flame-retardant polyvinyl chloride and is designed in transition fit with the reference of the tightness of the contact surfaces of the inner side surface of the residual section protection tube (4) and the outer side surface of the water pipe (1) and is loose;
the lengths of the remaining section heat insulation pipe (3) and the remaining section protection pipe (4) are determined according to the actual length of the remaining section installed on site;
the remaining section is internally provided with electric wires (8) which are two or more than two power wires and control wires respectively and are arranged in the remaining section protection tube (4) and the protection tube elbow (7), one end of the internally provided electric wire (8) is connected with the part internally provided electric wire (27) exposed from the tubular electric heating part (2), the other end of the internally provided electric wire penetrates through the remaining section positioning plug (8) and is connected with the other part internally provided electric wire (27) or a control element or a power supply, and the electric wire joint (81) is a waterproof joint;
the pipe fittings such as the protection pipe elbow (7) and the like are symmetrically and integrally divided into two parts, the two parts are fixed on the shoulder of the remaining section positioning plug (5) through screws (9), and other types of pipe fittings of the remaining section protection pipe (4) are installed according to the installation method of the protection pipe elbow (7) and the remaining section protection pipe (4).
The foregoing is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modifications, equivalent substitutions and improvements made to the above embodiments within the spirit and principle of the present invention are within the protection scope of the present invention.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911237803.8A CN112833260A (en) | 2019-11-25 | 2019-11-25 | Assembled electric heating insulation water pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911237803.8A CN112833260A (en) | 2019-11-25 | 2019-11-25 | Assembled electric heating insulation water pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112833260A true CN112833260A (en) | 2021-05-25 |
Family
ID=75922442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911237803.8A Pending CN112833260A (en) | 2019-11-25 | 2019-11-25 | Assembled electric heating insulation water pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112833260A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2627335A (en) * | 2023-02-20 | 2024-08-21 | Mosley Neale Tim | Insulated pipe assembly |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5390961A (en) * | 1993-04-28 | 1995-02-21 | Thermon Manufacturing Company | Dual wall thermally insulated conduit including skin effect heat tracing pipes |
| CN202791119U (en) * | 2012-10-13 | 2013-03-13 | 王鹏 | Independently heated flexible plastic steel reinforced composite pipe |
| CN203912225U (en) * | 2014-06-06 | 2014-10-29 | 镇江东方电热有限公司(中外合资) | Multifunctional protective connector for electric heating pipe head |
| CN208536290U (en) * | 2018-05-07 | 2019-02-22 | 青岛海尔空调器有限总公司 | A kind of fresh air duct for air conditioner |
-
2019
- 2019-11-25 CN CN201911237803.8A patent/CN112833260A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5390961A (en) * | 1993-04-28 | 1995-02-21 | Thermon Manufacturing Company | Dual wall thermally insulated conduit including skin effect heat tracing pipes |
| CN202791119U (en) * | 2012-10-13 | 2013-03-13 | 王鹏 | Independently heated flexible plastic steel reinforced composite pipe |
| CN203912225U (en) * | 2014-06-06 | 2014-10-29 | 镇江东方电热有限公司(中外合资) | Multifunctional protective connector for electric heating pipe head |
| CN208536290U (en) * | 2018-05-07 | 2019-02-22 | 青岛海尔空调器有限总公司 | A kind of fresh air duct for air conditioner |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2627335A (en) * | 2023-02-20 | 2024-08-21 | Mosley Neale Tim | Insulated pipe assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7203419B2 (en) | Heated conduit | |
| WO2020198898A1 (en) | Oilfield petroleum gathering pipeline heating and heat preservation graphene sleeve | |
| CN112469154A (en) | Skin effect heat tracing cable | |
| CA2878216A1 (en) | Mineral insulated cable having reduced sheath temperature | |
| CN112833260A (en) | Assembled electric heating insulation water pipe | |
| CN204083639U (en) | Civil building freezing prevention tubing automatic control accompanying-heat cable system | |
| CN103827568B (en) | For the outer cover of heat transfer fluid conduit | |
| CN106594857A (en) | Composite electric heating wire double-heat-source heating plastic pipe | |
| CN112188654A (en) | Anti-freezing self-temperature-limiting electric tracing band for water supply pipe | |
| WO2017114330A1 (en) | Metal conductor electric heating dual heat source heating plastic pipe | |
| RU2008103963A (en) | ELECTRICAL THERMOSTATING SYSTEM FOR PIPELINES OR TANKS | |
| CN204358328U (en) | The concrete conveying pipe heating and heat-insulating device of long distance | |
| CN111542143B (en) | Parallel constant-power electric tracing band | |
| CN204190957U (en) | The syndeton of the removable accompanying-heat cable of a kind of muff | |
| CN217762612U (en) | Air source pipeline freeze-proof device | |
| CN211063807U (en) | A skin effect cable | |
| RU114503U1 (en) | FIXED BRACKET WITH POLYURETHANE INSULATION | |
| CN211083135U (en) | Antibacterial and antioxidant aluminum-plastic pipe | |
| CN207609880U (en) | High temperature resistant flame retardant double wall pipe | |
| CN210978982U (en) | Novel prefabricated joint heat preservation oversleeve of glass fiber | |
| NO812631L (en) | BOEYBART, HEATLY INSULATED PIPE. | |
| CN217927756U (en) | Pipeline heating and heat-insulating set | |
| CN222848821U (en) | Temperature-controllable heating oil pipe | |
| CN206833964U (en) | A kind of mineral insulation anti-freeze cable peculiar to vessel | |
| CN210978818U (en) | Energy-saving heat tracing pipe cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |