Seamless pipe for high voltage power stations in supercritical environments
By introducing rubber protrusions, grooves, placement rings, and sealing rings into seamless pipe fittings, the problem of threaded connection wear is solved, achieving sealing performance and stability of seamless pipe fittings for high-voltage power stations, and enhancing corrosion resistance and strength.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG GUOBANG STEEL
- Filing Date
- 2025-08-14
- Publication Date
- 2026-07-14
AI Technical Summary
The seamless pipe fittings of existing high-voltage power plants used in supercritical environments are connected by threads. Frequent disassembly and reassembly cause wear on the threads at the connection points, resulting in gaps and affecting the stability of the connection.
The design incorporates a seamless pipe body, rubber protrusions, rubber grooves, placement rings, and sealing rings. The rubber protrusions engage within the rubber grooves, and the sealing rings ensure a tight fit, enhancing the connection's sealing performance. Furthermore, the multi-layered pipe structure improves the pipe's strength and corrosion resistance.
It achieves seamless pipe fitting connection sealing and stability, enhances the surface strength and corrosion resistance of the pipe fitting, and improves internal elasticity and toughness.
Smart Images
Figure CN224497785U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of seamless pipe fittings technology, and in particular to a seamless pipe fitting for high-voltage power plants in supercritical environments. Background Technology
[0002] High-voltage power plants for supercritical environments represent cutting-edge technologies in modern thermal power generation. By improving steam parameters (temperature and pressure), they achieve higher thermal efficiency and lower pollutant emissions. In the future, with the development of materials science and intelligent manufacturing technology, the performance of pipe fittings will be further improved, laying the foundation for the commercial application of ultra-supercritical units (700℃ parameters).
[0003] In existing deep-sea platform seamless pipe fittings, adjacent seamless pipe fittings are connected by threads. Frequent disassembly and reassembly of seamless pipe fittings can easily cause wear at the connection points, leading to gaps between the pipe fittings. Therefore, to address the above problem, a seamless pipe fitting for high-voltage power plants in supercritical environments is proposed. Utility Model Content
[0004] This embodiment provides a seamless pipe fitting for high-voltage power plants in supercritical environments to solve the problem that frequent disassembly of two adjacent seamless pipe fittings connected by threads can easily cause wear at the connection point of the pipe fittings, resulting in gaps between the pipe fittings.
[0005] According to one aspect of this application, a seamless pipe fitting for a high-voltage power station in a supercritical environment is provided, comprising a seamless pipe fitting body, a rubber protrusion, a rubber groove, a placement ring, and a sealing ring. The rubber protrusion is fixedly sleeved on the left end surface of the seamless pipe fitting body, a rubber groove is formed on the inner wall of the right end of the seamless pipe fitting body, and a placement ring is fixedly connected to the inner wall of the right end of the seamless pipe fitting body. The sealing ring is limited and engaged within the placement ring.
[0006] Furthermore, the number of rubber protrusions is several, and adjacent rubber protrusions are equidistantly distributed on the left end of the seamless pipe body.
[0007] Furthermore, the seamless pipe body includes an outer stainless steel pipe layer, a corrosion-resistant pipe layer, a rubber pipe layer, and an inner stainless steel pipe layer. The corrosion-resistant pipe layer is fixedly connected to the inner wall of the outer stainless steel pipe layer, the rubber pipe layer is fixedly connected to the inner wall of the corrosion-resistant pipe layer, and the seamless pipe layer is fixedly connected to the inner wall of the rubber pipe layer.
[0008] Furthermore, the thickness of the outer stainless steel tube layer is equal to the thickness of the corrosion-resistant tube layer.
[0009] Furthermore, the thickness of the corrosion-resistant pipe layer is greater than the thickness of the rubber pipe layer, and the thickness of the corrosion-resistant pipe layer is equal to the thickness of the inner stainless steel pipe layer.
[0010] Furthermore, the contact surfaces of adjacent elements among the outer stainless steel tube layer, corrosion-resistant tube layer, rubber tube layer, and inner stainless steel tube layer are tightly fitted together.
[0011] The above embodiments of this application employ a seamless pipe body, rubber protrusions, rubber grooves, placement rings, and sealing rings, which solves the problem that frequent disassembly of seamless pipes, which are often connected by threads, can easily cause the threads at the pipe connection to wear, affecting the stability of the seamless pipe connection. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application.
[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of one embodiment of this application;
[0014] Figure 2 This is a schematic front cross-sectional view of one embodiment of this application;
[0015] Figure 3 This is a schematic diagram of the left-end three-dimensional structure of one embodiment of this application.
[0016] In the diagram: 1. Seamless pipe body; 11. Outer stainless steel pipe layer; 12. Corrosion-resistant pipe layer; 13. Rubber pipe layer; 14. Inner stainless steel pipe layer; 2. Rubber protrusion; 3. Rubber groove; 4. Sealing ring; 5. Placement ring. Detailed Implementation
[0017] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.
[0018] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0019] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.
[0020] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.
[0021] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.
[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.
[0023] The seamless pipe fittings of the embodiments of this application are described below.
[0024] Please see Figure 1-3As shown, a seamless pipe fitting for a high-voltage power station in a supercritical environment includes a seamless pipe fitting body 1, a rubber protrusion 2, a rubber groove 3, a placement ring 5, and a sealing ring 4. The rubber protrusion 2 is fixedly sleeved on the left end surface of the seamless pipe fitting body 1, and a rubber groove 3 is opened on the inner wall of the right end of the seamless pipe fitting body 1. The placement ring 5 is fixedly connected to the inner wall of the right end of the seamless pipe fitting body 1, and the sealing ring 4 is limited and engaged inside the placement ring 5.
[0025] The number of rubber protrusions 2 is several, and adjacent rubber protrusions 2 are equidistantly distributed on the left end of the seamless pipe body 1.
[0026] The seamless pipe body 1 includes an outer stainless steel pipe layer 11, a corrosion-resistant pipe layer 12, a rubber pipe layer 13, and an inner stainless steel pipe layer 14. The corrosion-resistant pipe layer 12 is fixedly connected to the inner wall of the outer stainless steel pipe layer 11, the rubber pipe layer 13 is fixedly connected to the inner wall of the corrosion-resistant pipe layer 12, and the seamless pipe layer is fixedly connected to the inner wall of the rubber pipe layer 13.
[0027] The thickness of the outer stainless steel tube layer 11 is equal to the thickness of the corrosion-resistant tube layer 12.
[0028] The thickness of the corrosion-resistant pipe layer 12 is greater than the thickness of the rubber pipe layer 13, and the thickness of the corrosion-resistant pipe layer 12 is equal to the thickness of the inner stainless steel pipe layer 14.
[0029] The contact surfaces of adjacent elements of the outer stainless steel tube layer 11, corrosion-resistant tube layer 12, rubber tube layer 13, and inner stainless steel tube layer 14 are tightly fitted together.
[0030] In use, all electrical components mentioned in this application are externally connected to a power supply and control switch. In the docking of adjacent seamless pipe fittings, one end of the rubber protrusion 2 of one seamless pipe fitting is engaged in the rubber groove 3 of another seamless pipe fitting. The rubber protrusion 2 is tightly engaged in the seamless pipe fitting. At the same time, the end surface of the inserted seamless pipe fitting is tightly attached to the inner wall of the corresponding other seamless pipe fitting through the sealing ring 4, so as to achieve a sealing effect and ensure the connection and sealing of the seamless pipe fittings. The outer stainless steel pipe layer 11 ensures the strength of the surface of the seamless pipe fittings. The corrosion-resistant pipe layer 12 effectively ensures the overall corrosion resistance of the seamless pipe fittings. The rubber pipe layer 13 improves the elasticity and toughness of the seamless pipe fittings.
[0031] The advantages of this application are:
[0032] 1. This type of seamless pipe fitting for high-voltage power plants in supercritical environments features a novel design and simple structure. In the connection of adjacent seamless pipe fittings, one end of a seamless pipe fitting with a rubber protrusion engages with a rubber groove in another seamless pipe fitting. The rubber protrusion is tightly engaged within the seamless pipe fitting. Simultaneously, the end surface of the inserted seamless pipe fitting is tightly fitted to the inner wall of the corresponding seamless pipe fitting through a sealing ring, achieving a sealing effect and ensuring the connection sealing of the seamless pipe fittings. The outer stainless steel pipe layer ensures the surface strength of the seamless pipe fittings, the corrosion-resistant pipe layer effectively ensures the overall corrosion resistance of the seamless pipe fittings, and the rubber pipe layer improves the internal elasticity and toughness of the seamless pipe fittings.
[0033] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this application does not involve any improvement to the software and methods.
[0034] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A seamless pipe fitting for high-voltage power plants in supercritical environments, characterized in that, The fitting includes a seamless pipe body (1), a rubber protrusion (2), a rubber groove (3), a placement ring (5), and a sealing ring (4). The left end surface of the seamless pipe body (1) is fixedly fitted with a rubber protrusion (2), the right end inner wall of the seamless pipe body (1) is provided with a rubber groove (3), the right end inner wall of the seamless pipe body (1) is fixedly connected with a placement ring (5), and the placement ring (5) is limited and engaged with a sealing ring (4).
2. The seamless pipe fitting for high-voltage power plants in supercritical environments according to claim 1, characterized in that: The number of rubber protrusions (2) is several, and adjacent rubber protrusions (2) are equidistantly distributed on the left end of the seamless pipe body (1).
3. The seamless pipe fitting for high-voltage power plants in supercritical environments according to claim 1, characterized in that: The seamless pipe body (1) includes an outer stainless steel pipe layer (11), a corrosion-resistant pipe layer (12), a rubber pipe layer (13), and an inner stainless steel pipe layer (14). The corrosion-resistant pipe layer (12) is fixedly connected to the inner wall of the outer stainless steel pipe layer (11), the rubber pipe layer (13) is fixedly connected to the inner wall of the corrosion-resistant pipe layer (12), and the seamless pipe layer is fixedly connected to the inner wall of the rubber pipe layer (13).
4. The seamless pipe fitting for high-voltage power plants in supercritical environments according to claim 3, characterized in that: The thickness of the outer stainless steel tube layer (11) is equal to the thickness of the corrosion-resistant tube layer (12).
5. The seamless pipe fitting for high-voltage power plants in supercritical environments according to claim 3, characterized in that: The thickness of the corrosion-resistant pipe layer (12) is greater than the thickness of the rubber pipe layer (13), and the thickness of the corrosion-resistant pipe layer (12) is equal to the thickness of the inner stainless steel pipe layer (14).
6. The seamless pipe fitting for high-voltage power plants in supercritical environments according to claim 3, characterized in that: The contact surfaces of two adjacent layers of the outer stainless steel tube layer (11), corrosion-resistant tube layer (12), rubber tube layer (13), and inner stainless steel tube layer (14) are tightly fitted together.