Double-reinforced steel skeleton composite pipe
By adopting a double reinforcement structure in the steel skeleton composite pipe, including the core layer, steel skeleton layer, inorganic non-metallic fiber reinforcement layer and polyethylene protective layer, the slip problem caused by thermal expansion and contraction is solved and the high stiffness of the pipe is achieved. and high pressure-bearing capacity, and enhanced sealing.
Patent Information
- Application Number
- CN202421335229.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-13
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-06-13
AI Technical Summary
During the thermal expansion and contraction process of existing steel frame composite pipes, due to the large difference in thermal expansion coefficients of polyethylene and steel frames, the reinforcement layer and the polyethylene layer slip, affecting the pressure bearing capacity of the pipeline.
A double-reinforced steel skeleton composite pipe structure is adopted, including a core layer, a steel skeleton layer, an inorganic non-metallic fiber reinforcement layer and a polyethylene protective layer. The strength and sealing of the pipeline are enhanced through the sequential stacking and fixed connection of these layers.
The high rigidity and high pressure-bearing capacity of the pipeline are achieved. At the same time, the sealing and sealing properties of the pipeline are enhanced through the hot-melt connection of the sealing ring, ensuring the firm installation of the hot-withholding bolt locking joint.
Smart Images
Figure CN222392181U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of composite pipes, in particular to a double-reinforced steel skeleton composite pipe. Background Art
[0002] At present, the traditional steel skeleton composite pipe refers to a composite pipe in which the core tube is formed by a composite of polyethylene and a steel wire mesh skeleton or polyethylene and a porous steel belt, the middle layer reinforcement layer is a steel wire mesh or a porous steel belt, and the outer layer is a polyethylene protective layer.
[0003] The steel skeleton in the pipeline not only has the function of increasing the rigidity and stiffness of the pipeline, but also has the function of bearing the pressure strength of the pipeline. However, since polyethylene is a non-metallic material and the steel skeleton is a metal material, the thermal expansion coefficients of the two are very different. Thermal expansion and contraction can easily cause slippage between the pipeline reinforcement layer and the polyethylene layer, thereby greatly affecting the pressure bearing capacity of the pipeline. In view of the shortcomings of the existing technology, we propose a double-reinforced steel skeleton composite pipe to solve the above problems. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a double-reinforced steel skeleton composite pipe, which solves the problem that the steel skeleton in the current pipeline only bears the function of pipeline stiffness and rigidity. The pressure bearing capacity of the pipeline is borne by another structural layer, and the structural layer that bears the pipeline pressure is also non-metallic, thereby achieving high rigidity of the pipeline while also achieving high pressure bearing capacity of the pipeline.
[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a double-reinforced steel skeleton composite pipe, comprising a composite pipe body, wherein the composite pipe body is sequentially provided with a core layer, a steel skeleton layer, an inorganic non-metallic fiber reinforcement layer and a polyethylene protective layer from the inside to the outside;
[0006] The steel skeleton layer is fixedly connected to the outer peripheral wall of the core layer, the inorganic non-metallic fiber reinforcement layer is fixedly connected to the outer peripheral wall of the steel skeleton layer, and the polyethylene protective layer is fixedly connected to the outer peripheral wall of the inorganic non-metallic fiber reinforcement layer.
[0007] Preferably, the core layer, the steel skeleton layer, the inorganic non-metallic fiber reinforcement layer and the polyethylene protective layer are stacked in sequence to form a tubular structure.
[0008] Preferably, a sealing ring is fixedly connected to the end of the core layer, and the sealing ring is used to increase the sealing performance of the core layer.
[0009] Preferably, the side walls of the steel skeleton layer, the inorganic non-metallic fiber reinforcement layer and the polyethylene protective layer are all fixedly connected to the sealing ring.
[0010] The utility model discloses a double-reinforced steel skeleton composite pipe, which has the following beneficial effects: the double-reinforced steel skeleton composite pipe, by sequentially arranging a steel skeleton layer, an inorganic non-metallic fiber reinforcement layer and a polyethylene protective layer on the surface of the core layer inside the composite pipe, the steel skeleton layer and the inorganic non-metallic fiber reinforcement layer can enhance the strength and high temperature resistance of the pipeline, thereby avoiding the current situation of poor rigidity of the pipeline, and at the same time, by hot-melt connection of the sealing ring at the end of the core layer, the sealing and sealing of the pipeline can be enhanced, and at the same time, the steel skeleton of the pipeline is the internal support for the hot-pressed bolt locking pipe joint installed on the pipeline, ensuring that the hot-pressed bolt locking joint is firmly installed on the pipeline BRIEF DESCRIPTION OF THE DRAWINGS
[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0012] Figure 1 This is a schematic diagram of the overall structure of the composite pipe body of the utility model;
[0013] Figure 2 It is a schematic diagram of the explosion structure of the composite pipe body of the utility model.
[0014] In the figure: 1. composite pipe body; 101. core layer; 102. steel skeleton layer; 103. inorganic non-metallic fiber reinforcement layer; 104. polyethylene protective layer; 105. sealing ring. DETAILED DESCRIPTION
[0015] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0016] The embodiment of the present application provides a double-reinforced steel skeleton composite pipe, which solves the problem that the steel skeleton in the current pipeline only bears the function of pipeline stiffness and rigidity. The pressure bearing capacity of the pipeline is borne by another structural layer, and the structural layer that bears the pipeline pressure is also non-metallic, thereby achieving high rigidity of the pipeline while also achieving high pressure bearing capacity of the pipeline.
[0017] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0018] The utility model embodiment discloses a double-reinforced steel skeleton composite pipe.
[0019] According to the attached Figure 1-2 As shown, a double-reinforced steel skeleton composite pipe comprises a composite pipe body 1, and the composite pipe body 1 is provided with core layers 101 from the inside to the outside. The core layer 101 is mainly made of polyethylene material, and its main function is to prevent the medium transported by the pipeline from contacting with other parts of the pipe body;
[0020] The steel skeleton layer 102 mainly functions to enhance the ring rigidity and stiffness of the pipeline, and can make up for the shortcomings of the flexible composite pipe, which has high pressure bearing capacity, good toughness but poor rigidity;
[0021] The inorganic non-metallic fiber reinforcement layer 103 is the main pressure-bearing layer of the pipeline and determines the pressure-bearing capacity of the pipeline. The inorganic non-metallic fibers on the inorganic non-metallic fiber reinforcement layer 103 are tightly embedded in the threads or gaps of the "metal locking hot-pressing joint" to form a whole with the "metal locking hot-pressing joint". The inorganic non-metallic fiber reinforcement layer 103 has the advantages of high strength, good toughness, and high temperature resistance;
[0022] A polyethylene protective layer 104, which is mainly used to enhance the appearance of the pipeline and prevent ultraviolet rays;
[0023] The steel skeleton layer 102 is fixedly connected to the outer peripheral wall of the core layer 101 , the inorganic non-metallic fiber reinforcement layer 103 is fixedly connected to the outer peripheral wall of the steel skeleton layer 102 , and the polyethylene protective layer 104 is fixedly connected to the outer peripheral wall of the inorganic non-metallic fiber reinforcement layer 103 .
[0024] The core layer 101, the steel skeleton layer 102, the inorganic non-metallic fiber reinforcement layer 103 and the polyethylene protective layer 104 are stacked in sequence to form a tubular structure.
[0025] The end of the core layer 101 is fixedly connected with a sealing ring 105, which is used to increase the sealing performance of the core layer 101. By hot-melting the polyethylene material of the core layer 101 and the polyethylene material on the sealing ring 105, it can ensure that the end face of the pipeline is watertight and that the pipeline does not penetrate into the pipeline wall when conveying the medium.
[0026] The side walls of the steel skeleton layer 102 , the inorganic non-metallic fiber reinforcement layer 103 and the polyethylene protective layer 104 are all fixedly connected to the sealing ring 105 .
[0027] When the utility model is used, the core layer 101 and the sealing ring 105 are first assembled, and then the steel skeleton layer 102, the inorganic non-metallic fiber reinforcement layer 103 and the polyethylene protective layer 104 are sequentially sleeved and fixed on the outer peripheral wall of the core layer 101.
[0028] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A double-reinforced steel skeleton composite pipe, comprising a composite pipe body (1), characterized in that: The composite pipe body (1) is provided with a core layer (101), a steel skeleton layer (102), an inorganic non-metallic fiber reinforcement layer (103) and a polyethylene protective layer (104) in sequence from the inside to the outside; The steel skeleton layer (102) is fixedly connected to the outer peripheral wall of the core layer (101), the inorganic non-metallic fiber reinforcement layer (103) is fixedly connected to the outer peripheral wall of the steel skeleton layer (102), and the polyethylene protective layer (104) is fixedly connected to the outer peripheral wall of the inorganic non-metallic fiber reinforcement layer (103).
2. A double-reinforced steel skeleton composite pipe according to claim 1, characterized in that: The core layer (101), the steel skeleton layer (102), the inorganic non-metallic fiber reinforcement layer (103) and the polyethylene protective layer (104) are stacked in sequence to form a tubular structure.
3. The double-reinforced steel skeleton composite pipe according to claim 1, characterized in that: A sealing ring (105) is fixedly connected to the end of the core layer (101), and the sealing ring (105) is used to increase the sealing performance of the core layer (101).
4. The double-reinforced steel skeleton composite pipe according to claim 3, characterized in that: The side walls of the steel skeleton layer (102), the inorganic non-metallic fiber reinforcement layer (103) and the polyethylene protective layer (104) are all fixedly connected to the sealing ring (105).