CN215410595U - Heating system and communicating pipe thereof - Google Patents

Abstract

The utility model relates to a heating system and a communicating pipe thereof, wherein the communicating pipe comprises an anti-scaling pipe, a heat insulation pipe and a heat insulation pipe, and the heat insulation pipe is sleeved on the outer side of the anti-scaling pipe; the heat insulation pipe is sleeved outside the heat insulation pipe. The anti-scaling pipe can prevent water in the pipeline from forming scale on the inner wall to influence the flow of the pipeline and the heating quality under the state of long-time non-circulation. The heat preservation pipe is sleeved outside the anti-scaling pipe, and meanwhile, the heat preservation pipe can prevent the heat loss of the heating air in the anti-scaling pipe. Further establish thermal-insulated pipe in the thermal-insulated outside cover of insulating tube, the heat preservation effect of assurance insulating tube that can be better further promotes heating system's heating quality.

Description

Heating system and communicating pipe thereof

Technical Field

The utility model relates to the technical field of water supply pipelines, in particular to a heating system and a communicating pipe thereof.

Background

In the north, the winter is cold, and the government adopts a central heating mode to provide warm air for residents. During the process that the heating air flows into the heating pipelines of residents from the large pipelines of the central heating station, a large amount of heat is dissipated. Meanwhile, the heating pipeline is only used in winter, and water in the pipeline is in a non-circulating state most of the time. However, the water is still for a long time, which easily causes scale in the heating pipe and accumulates on the inner wall of the pipe, thereby affecting the flow rate of the heating pipe and the heating quality.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a heating system and a communication pipe thereof, which are less likely to cause scale formation, in view of the above-described problems.

A communicating pipe comprises an anti-scaling pipe, a heat insulation pipe and a heat insulation pipe, wherein the anti-scaling pipe comprises a pipe body and an anti-scaling layer, the anti-scaling layer is arranged on the inner wall of the pipe body, and the heat insulation pipe is sleeved on the outer side of the anti-scaling pipe; the heat insulation pipe is sleeved outside the heat insulation pipe.

Above-mentioned communicating pipe, scale control pipe can make the water in the pipeline under the state of long-time not circulating, also can not form incrustation scale influence pipeline flow and heating quality on the inner wall. The heat preservation pipe is sleeved outside the anti-scaling pipe, and meanwhile, the heat preservation pipe can prevent the heat loss of the heating air in the anti-scaling pipe. Further establish thermal-insulated pipe in the thermal-insulated outside cover of insulating tube, the heat preservation effect of assurance insulating tube that can be better further promotes heating system's heating quality.

In one embodiment, the communicating pipe further comprises an outer pipe, the outer pipe is sleeved on the outer side of the heat insulation pipe, the outer pipe comprises an inner pipe portion and an outer pipe portion, the outer pipe portion is sleeved on the outer side of the inner pipe portion, and the color of the inner pipe portion is different from the color of the outer pipe portion.

In one embodiment, the wall thickness of the outer tube portion is 8% -12% of the total wall thickness of the outer tube.

In one of the embodiments, the outer diameter of the anti fouling tube is in the range of 30mm-33mm and the wall thickness of the anti fouling tube is in the range of 4mm-5 mm.

In one embodiment, the inner diameter of the heat-insulating pipe ranges from 30mm to 33mm, the wall thickness of the heat-insulating pipe ranges from 12mm to 14mm, and the inner diameter of the heat-insulating pipe and the outer diameter of the scale prevention pipe have the same value.

In one embodiment, the inner diameter of the heat insulation pipe ranges from 54mm to 61mm, the wall thickness of the heat insulation pipe ranges from 5mm to 6mm, and the inner diameter of the heat insulation pipe and the outer diameter of the heat preservation pipe have the same value.

In one embodiment, the inner diameter of the outer pipe is 64mm-73mm, the wall thickness of the outer pipe is 7mm-8mm, and the inner diameter of the outer pipe is the same as the outer diameter of the heat insulation pipe.

In one embodiment, the anti-fouling tube is a hydrophobic adjuvant tube.

In another embodiment, the anti-scale pipe comprises a pipe body and an anti-scale layer, wherein the anti-scale layer is arranged on the inner wall of the pipe body.

Specifically, the pipe body is a beta-PPH pipe, the scale prevention layer is a hydrophobic master batch layer, and the hydrophobic master batch layer is formed on the inner wall of the beta-PPH pipe.

In one embodiment, the insulating tube is a rock wool tube.

In one embodiment, the thermal insulation pipe is a phenolic resin foam cotton pipe.

A heating system comprises heating equipment and a communicating pipe, wherein the communicating pipe is connected with the heating equipment.

According to the heating system, the scale prevention pipe can prevent water in the pipeline from forming scale on the inner wall to influence the flow of the pipeline and the heating quality under the state that the water does not circulate for a long time. The heat preservation pipe is sleeved outside the anti-scaling pipe, and meanwhile, the heat preservation pipe can prevent the heat loss of the heating air in the anti-scaling pipe. Further establish thermal-insulated pipe in the thermal-insulated outside cover of insulating tube, the heat preservation effect of assurance insulating tube that can be better further promotes heating system's heating quality.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Furthermore, the drawings are not to scale of 1:1, and the relative dimensions of the various elements in the drawings are drawn only by way of example and not necessarily to true scale. In the drawings:

fig. 1 is a schematic structural diagram of a communication pipe in an embodiment;

fig. 2 is a schematic structural view of a communication pipe in another embodiment;

fig. 3 is a schematic structural diagram of an outer tube of the communication tube in the embodiment of fig. 2.

The elements in the figure are labeled as follows:

10. a communicating pipe; 100. an anti-scaling tube; 200. a heat preservation pipe; 300. a heat insulating pipe; 400. an outer tube; 410. an inner-layer tube portion; 420. an outer tubular portion.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

Referring to fig. 1, the heating system in one embodiment includes a heating device and a communicating pipe 10, and the communicating pipe 10 is connected to the heating device. Specifically, the communication pipe 10 includes an anti-scale pipe 100, a heat preservation pipe 200, and an insulation pipe 300, where the anti-scale pipe 100 includes a pipe body and an anti-scale layer disposed on an inner wall of the pipe body; the heat preservation pipe 200 is sleeved outside the anti-scale pipe 100; the heat insulation pipe 300 is sleeved outside the heat insulation pipe 200. Central heating equipment is installed in households in the north, but a heating pipeline is only used in winter, and water in the pipeline is in a non-circulating state most of time. However, the water is still for a long time, which easily causes scale in the heating pipe and accumulates on the inner wall of the pipe, thereby affecting the flow rate of the heating pipe and the heating quality. The central heating station also generates a large amount of heat to dissipate in the process of flowing into the heating pipelines of residents from the large pipelines of the central heating station. In the communication pipe 10 of the present embodiment, the scale prevention pipe 100 can prevent scale from being formed on the inner wall of the pipe even when water in the pipe is not circulated for a long time, which may affect the flow rate of the pipe and the heating quality. The thermal insulation pipe 200 is sleeved outside the anti-scaling pipe 100, and meanwhile, the thermal insulation pipe 200 can prevent a large amount of heat from being dissipated by the warm air in the anti-scaling pipe 100. Further establish insulating tube 300 at insulating tube 200 outside cover, guarantee insulating tube 200's that can be better heat preservation effect further promotes heating system's heating quality. After the pipe body is formed, the anti-scaling layer is arranged on the inner wall of the pipe body in a smearing or sleeving way and the like. Specifically, the pipe body is a beta-PPH pipe, the scale prevention layer is a hydrophobic master batch layer, and the hydrophobic master batch layer is formed on the inner wall of the beta-PPH pipe.

Referring to fig. 2 and 3, in one embodiment, the communication pipe 10 further includes an outer pipe 400, the outer pipe 400 is sleeved on the outer side of the heat insulation pipe 300, the outer pipe 400 includes an inner pipe portion 410 and an outer pipe portion 420, the outer pipe portion 420 is sleeved on the outer side of the inner pipe portion 410, and the color of the inner pipe portion 410 is different from the color of the outer pipe portion 420. In the transportation and installation process of communicating pipe 10, the outer pipe 400 tube portion of communicating pipe 10 is easily scratched by external gravel, and if the scratch is too deep, the damaged portion of scratch easily produces the potential safety hazard in the actual use process of communicating pipe 10. However, it is difficult for the constructor to estimate whether the scratch exceeds a certain safety limit by naked eyes in the actual construction process, and the communicating pipe 10 needs to be checked by an instrument, which is time-consuming and labor-consuming. In contrast, when the communication pipe 10 of the present embodiment is scratched or broken during transportation or installation, the inner pipe portion 410 and the outer pipe portion 420 of the outer pipe 400 have different colors. Constructor can be through whether the colour of visual observation damaged position is the same with outer tube 400 pipe portion colour, judges whether this communicating pipe 10 is in safe state, decides whether to continue to use this communicating pipe 10, has effectively ensured construction safety and communicating pipe 10's safety in utilization.

In one embodiment, the outer tube portion 420 has a wall thickness of 8% to 12% of the total wall thickness of the outer tube 400. Since the wall thickness of the outer-layer tube part 420 is 8% -12% of the total wall thickness of the outer tube 400. Constructor can judge whether the damage exceeds 8% -12% of the total wall thickness of outer tube 400 through the visual observation, then judge whether this communicating pipe 10 is in safe state, effectively ensured construction safety and communicating pipe 10's safety in utilization. Preferably, the wall thickness of the outer tube portion 420 is 10% of the total wall thickness of the outer tube 400.

Referring to fig. 3, in one embodiment, the outer tubular portion 420 is integrally formed on the outside of the inner tubular portion 410. The pipe material raw materials with two different colors are put into two single screw extruders, the inner pipe part 410 and the outer pipe part 420 with two different colors are formed by the two single screw extruders, the inner pipe part 410 and the outer pipe part 420 with two different colors are fused with each other by a composite die, then the pipe blank is formed by a die, and then the pipe blank is shaped by a sizing sleeve under the vacuum environment, enters a water tank for cooling, is marked with a mark, is cut to a selected length, and finally the outer pipe 400 is formed. In the specific production process, the wall thicknesses of the inner-layer pipe part 410 and the outer-layer pipe part 420 are controlled by controlling the screw rotating speed and the production line traction speed of the two single-screw extruders, so that the wall thickness of the outer-layer pipe part 420 is controlled to be 8% -12% of the total wall thickness of the outer pipe 400.

Specifically, the inner pipe portion 410 is a PE100 pipe or a PE100-RC pipe; the outer pipe portion 420 is a PE100 pipe or a PE100-RC pipe. PE is an abbreviation for Polyethylene, English Polyethylene of discrete temperature resistance, PE100 pipe is a high Density Polyethylene pipe, also known as HDPE (high Density Polyethylene), and PE100-RC pipe is a crack resistant high Density Polyethylene pipe. The low-temperature embrittlement temperature of the high-density polyethylene pipe is extremely low, and the high-density polyethylene pipe can be safely used within the temperature range of minus 60 ℃ to plus 60 ℃. The communicating pipe 10 is ensured in cold winter in the north, and the heating safety and the heating quality are not influenced by the brittle fracture of the outer pipe 400. Moreover, the high-density polyethylene pipe is lighter than a concrete pipeline, a galvanized pipe and a steel pipe, is easier to carry and install, has lower manpower and equipment requirements, greatly reduces the construction difficulty and the construction cost, and improves the construction efficiency. Meanwhile, the high-density polyethylene pipe has good impact resistance, the maximum bearing pressure of the high-density polyethylene pipe is 1.25MPa, the high-density polyethylene pipe has low notch sensitivity, high shear strength and excellent scratch resistance, the environmental stress cracking resistance is very outstanding, and the outer pipe 400 is ensured to have higher construction safety. The high-density polyethylene pipe can resist corrosion of various chemical media, cannot generate phenomena of corrosion, rusting or electrochemical corrosion, cannot promote growth of algae, bacteria or fungi, and has longer service life and higher safety. In the actual installation process, the flexibility of the high-density polyethylene pipe enables the high-density polyethylene pipe to be easier to bend, the high-density polyethylene pipe can be adaptively adjusted according to the application environment, construction is performed by combining the modes of pipe jacking, directional drilling, liner pipe, pipe cracking and the like, and the installation cost of the outer pipe 400 is effectively reduced.

In another embodiment, the inner pipe section 410 is a PPR pipe; the outer pipe portion 420 is a PPR pipe. The PPR pipe (Polypropylene-Random) is a Random copolymerization Polypropylene pipe. The strength and high temperature resistance of the polypropylene are well ensured by a random copolymerization technology. Compared with the traditional cast iron pipe, galvanized steel pipe, cement pipe and other pipelines, the PPR pipe has the advantages of energy conservation, material saving, environmental protection, light weight, high strength, corrosion resistance, smooth inner wall, no scaling, simple and convenient construction and maintenance, long service life of 50 years and the like, and is widely applied to the building industry, municipal administration, industry and agricultural field such as building water supply and drainage, urban and rural water supply and drainage, urban gas, electric power and optical cable sheath, industrial fluid transportation agricultural irrigation and the like. Usually, two PPR pipes are connected into a whole through hot melting, and the toxicity caused by glue bonding is avoided, so that a supply system formed by the PPR pipes is sanitary, healthy and environment-friendly. The structural strength that the hot melt is connected is high, and stability and leakproofness are good, can effectively guarantee not to leak between two PPR pipes. Meanwhile, the PPR pipe has small conveying resistance, and the supply efficiency of the supply system is further ensured.

In other embodiments, the inner tubular portion 410 may also be a PVC pipe; the outer tubular portion 420 may also be a PVC pipe. PVC is a short name for polyvinyl chloride, and is formed by extrusion molding of polyvinyl chloride resin, a stabilizer, a lubricant and the like by a hot pressing method after being matched, and then the heat resistance, the toughness and the ductility of the PVC are enhanced by adding other components, so that the PVC pipe is divided into a PVC-U pipe, a PVC-M pipe and a PVC-O pipe. The PVC-U pipe has strong corrosion resistance, easy adhesion, low price and hard texture, but is only suitable for a water supply system with the conveying temperature not exceeding 45 ℃ due to the seepage of PVC-U monomer and additives. PVC-M pipes are used for drainage, waste water, chemicals, heating and cooling fluids, food, ultra pure liquids, slurries, gases, compressed air and vacuum systems. The PVC-O pipe is a biaxial orientation polyvinyl chloride pipe manufactured by a special orientation processing technology, and a PVC-U pipe produced by an extrusion method is axially stretched and radially stretched, so that PVC long-chain molecules in the pipe are regularly arranged in a biaxial direction, and a novel PVC pipe with high strength, high toughness, high impact resistance and fatigue resistance is obtained. The PVC pipe has good tensile strength, compressive strength and low fluid resistance, and can ensure the structural stability of the outer pipe 400.

Referring to fig. 1, in one embodiment, the outer diameter of the anti-scaling pipe 100 ranges from 30mm to 33mm, and the wall thickness of the anti-scaling pipe 100 ranges from 4mm to 5 mm. The inner diameter range of the anti-scaling pipe 100 is 20mm-25mm, which can ensure enough water flow to pass through, and further ensure the heating quality. The wall thickness of the anti-scaling pipe 100 ranges from 4mm to 5mm, which can ensure that the anti-scaling pipe 100 has enough compressive strength to allow water to pass through. Preferably, the outer diameter of the anti-scale tube 100 is 32mm and the wall thickness of the anti-scale tube 100 is 4.4 mm.

In one embodiment, the inner diameter of the thermal insulation pipe 200 ranges from 30mm to 33mm, the wall thickness of the thermal insulation pipe 200 ranges from 12mm to 14mm, and the inner diameter of the thermal insulation pipe 200 is the same as the outer diameter of the anti-scaling pipe 100. Because the inner diameter value of the heat preservation pipe 200 is the same as the outer diameter value of the anti-scaling pipe 100, the heat preservation pipe 200 can be tightly attached to the anti-scaling pipe 100, and a good heat preservation effect is provided. The wall thickness range of the thermal insulation pipe 200 is set to 12mm-14mm, so that the thermal insulation performance of the thermal insulation pipe 200 can be effectively guaranteed. Preferably, the inner diameter of the thermal insulation pipe 200 is 32mm, and the wall thickness of the thermal insulation pipe 200 is 12 mm.

In one embodiment, the inner diameter of the thermal insulation pipe 300 ranges from 54mm to 61mm, the wall thickness of the thermal insulation pipe 300 ranges from 5mm to 6mm, and the inner diameter of the thermal insulation pipe 300 is the same as the outer diameter of the thermal insulation pipe 200. Since the inner diameter of the heat insulation pipe 300 is the same as the outer diameter of the heat insulation pipe 200, the heat insulation pipe 300 can be tightly attached to the heat insulation pipe 200, thereby providing a good heat insulation effect and further improving the heating performance of the communication pipe 10. The wall thickness of the heat insulation pipe 300 is set to 5mm to 6mm, so that the heat insulation performance of the heat insulation pipe 300 can be effectively ensured. Preferably, the inner diameter of the heat insulation pipe 300 is 54mm, and the wall thickness of the heat insulation pipe 300 is 5mm to 6 mm.

In one embodiment, the inner diameter of the outer tube 400 is 64mm to 73mm, the wall thickness of the outer tube 400 is 7mm to 8mm, and the inner diameter of the outer tube 400 is the same as the outer diameter of the insulating tube 300. The wall thickness of the outer tube 400 is 7mm to 8mm, which can effectively protect the heat insulation tube 300. The inner diameter of the outer tube 400 is 64mm, and the wall thickness of the outer tube 400 is 7 mm.

In another embodiment, the pipe body is a metal pipe, and the scale prevention layer is arranged on the inner wall of the metal pipe in a smearing or sleeving manner and the like. Specifically, the metal tube is a copper tube. The copper pipes are connected through welding. In the welding process, the interface is welded together through oxygen, so that the joint has high connection strength and good stability and sealing property. Meanwhile, the copper pipe can release copper ions in the using process, and the copper ions have a sterilization effect and can play a role in purifying water quality. The copper pipe is firm, durable, heat-resistant, fire-resistant and small in thermal expansion rate, and can ensure the structural stability of the communication pipe 10 when the temperature changes greatly.

In another embodiment, the anti-fouling tube 100 is a hydrophobic agent tube. During processing, the hydrophobic additive and the material forming the pipe body are poured into the extruder together, so that the hydrophobic additive is blended into the pipe body to form the anti-scaling pipe 100. The hydrophobic auxiliary agent pipe has high hydrophobicity, and can prevent ions forming scale from being gathered and attached to the pipe wall while repelling water molecules, so that the heating quality of the communicating pipe 10 is ensured. Specifically, the pipe body is a beta-PPH pipe, the hydrophobic auxiliary agent is a hydrophobic master batch layer, and the hydrophobic master batch is fused in the beta-PPH pipe. The PPH pipe is a homopolymerization polypropylene pipe, and a common polypropylene pipe material is subjected to Beta modification, so that the PPH pipe has a uniform and fine Beta crystal structure, and the Beta-PPH pipe is formed. The beta-PPH pipe has excellent chemical corrosion resistance, the applicable temperature range is from-20 ℃ to +110 ℃, and the application environment and the reliability of the communicating pipe 10 are effectively expanded. Meanwhile, the polypropylene material has higher pressure resistance, so that the beta-PPH pipe can be stable in structure and does not deform under a high-pressure state, and the safety of the communicating pipe 10 is improved. The hydrophobic master batch has high hydrophobicity and is easy to process, and can be automatically and uniformly dispersed in the processing process, so that the surface of the formed hydrophobic master batch layer is smooth, the hydrophobic characteristic is combined to ensure that the anti-scaling pipe 100 has higher conveying capacity, and the water conveying energy consumption and pressure loss of the anti-scaling pipe 100 are reduced.

In one embodiment, the insulating tube 300 is a rock wool tube. The rock wool pipe is made up by using natural basalt as main raw material, high-temp. melting, high-speed centrifugal equipment to obtain artificial inorganic fibre, at the same time adding special-made adhesive and dust-proofing oil, heating and solidifying so as to obtain the invented rock wool pipe with various specifications and different requirements. The rock wool pipe is widely applied to heat preservation of various industrial boilers and equipment pipelines in petroleum, chemical industry, metallurgy, ships, textile and the like, and is also used for heat preservation of partition walls, suspended ceilings, inner and outer walls in the building industry and heat insulation of various types of cold and heat pipelines and hidden and exposed pipelines. In this embodiment, rock wool pipe has good thermal insulation performance, machinability and fire behavior, can provide good thermal insulation performance for communicating pipe 10, improves the security of communicating pipe 10. The rock wool pipe has high acidity coefficient, good chemical stability and fiber durability, and prolonged service life of the communicating pipe 10. And simultaneously has good sound absorption characteristics, can absorb the water flow noise in the communication pipe 10, and further improves the quality of the communication pipe 10.

In another embodiment, the insulation pipe 300 is a rock wool composite pipe. The rock wool composite pipe is prepared by compounding rock wool and glass wool-aluminum silicate wool, diabase and basalt slag are used as main raw materials, and special adhesive and waterproof agent are sprayed in the high-speed centrifugation process after the diabase and the basalt slag are melted at high temperature, so that the rock wool composite pipe has the characteristics of heat preservation and water resistance. The rock wool composite pipe has the special functions of moisture resistance, temperature exhaust and hydrophobicity, is particularly suitable for being used in rainy and humid environments, has the moisture absorption rate of less than five percent and the hydrophobicity rate of more than ninety eight percent, and effectively widens the application scene of the connecting pipe.

In one embodiment, the thermal insulation pipe 200 is a phenolic resin foam pipe. The phenolic resin foaming cotton pipe is formed by condensation polymerization of phenol and formaldehyde, and is formed into a pipeline after foaming and curing. In the foaming production process, freon is not used as a foaming agent, the foaming agent meets the international environmental protection standard, the molecular structure of the foaming production process contains hydrogen, oxygen and carbon elements, and overflowed gas is nontoxic and tasteless during pyrolysis and is harmless to human bodies and the environment, so that the foaming production process accords with the national green environmental protection requirement, and the safety of the communicating pipe 10 is ensured. The phenolic resin foam cotton has high closed-cell rate, low heat conductivity coefficient, good heat insulation performance, water resistance and water vapor permeability, and can improve the heat insulation performance and safety of the communicating pipe 10. Meanwhile, the phenolic resin foam cotton has the use temperature ranging from-196 ℃ to +200 ℃, does not shrink or embrittle in a low-temperature environment, and improves the reliability of the communicating pipe 10.

In another embodiment, the insulating tube 200 is a polyurethane foam tube. The polyurethane foam tube is prepared by using a high-function polyether polyol composite material and multi-time methyl polyphenyl polyisocyanate as raw materials and foaming the raw materials through chemical reaction. The polyurethane foam can be firmly bonded with various materials, is simple and convenient to construct, effectively reduces the construction cost, has obvious heat insulation, sound insulation, flame retardance, cold resistance, no water absorption, energy conservation and corrosion prevention effects, and is widely applied to various pipelines for heat supply, refrigeration, oil transportation, steam transportation and the like. The adaptive temperature of the polyurethane foam pipe is-196 ℃ to +120 ℃, so that the reliability of the communicating pipe 10 is ensured.

In other embodiments, the communication pipe in any of the above embodiments may also be applied to a transmission pipe network for petroleum and natural gas, and other supply systems that need to transmit fluid.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A communication pipe of a heating system, characterized in that the communication pipe comprises:

the scale prevention pipe comprises a pipe body and a scale prevention layer, and the scale prevention layer is arranged on the inner wall of the pipe body;

the heat-insulating pipe is sleeved on the outer side of the scale prevention pipe; and

the heat insulation pipe is sleeved on the outer side of the heat insulation pipe.

2. The communication pipe for a heating system according to claim 1, further comprising an outer pipe, wherein the outer pipe is fitted around the outer side of the heat insulating pipe, the outer pipe includes an inner pipe portion and an outer pipe portion, the outer pipe portion is fitted around the outer side of the inner pipe portion, and a color of the inner pipe portion is different from a color of the outer pipe portion.

3. The communicating pipe for a heating system according to claim 2, wherein the wall thickness of the outer-layer pipe portion is 8% to 12% of the total wall thickness of the outer pipe.

4. A communicating tube of a heating system as recited in claim 2, wherein an outer diameter of said scale prevention tube is in a range of 30mm to 33mm, and a wall thickness of said scale prevention tube is in a range of 4mm to 5 mm; and/or

The inner diameter range of the heat-insulating pipe is 30-33 mm, the wall thickness range of the heat-insulating pipe is 12-14 mm, and the inner diameter value of the heat-insulating pipe is the same as the outer diameter value of the anti-scaling pipe.

5. The communicating pipe of a heating system according to claim 4, wherein an inner diameter of the heat insulating pipe ranges from 54mm to 61mm, a wall thickness of the heat insulating pipe ranges from 5mm to 6mm, and an inner diameter of the heat insulating pipe has the same value as an outer diameter of the heat insulating pipe; and/or

The inner diameter of the outer pipe is 64mm-73mm, the wall thickness range of the outer pipe is 7mm-8mm, and the inner diameter value of the outer pipe is the same as the outer diameter value of the heat insulation pipe.

6. A communicating pipe of a heating system as set forth in claim 1, wherein the scale prevention pipe is a drainage assistant pipe.

7. The communicating pipe of a heating system according to claim 6, wherein the pipe body is a β -PPH pipe, the scale prevention layer is a hydrophobic master batch layer, and the hydrophobic master batch layer is formed on an inner wall of the β -PPH pipe.

8. A communicating pipe for a heating system according to any one of claims 1 to 7, wherein the heat insulating pipe is a rock wool pipe.

9. The communicating pipe of a heating system according to any one of claims 1 to 7, wherein the insulating pipe is a phenolic resin foam pipe.

10. A heating system, characterized in that the heating system comprises:

a heating facility; and

the communication pipe according to any one of claims 1 to 9, which is connected to the heating equipment.

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