A high-temperature-resistant and pressure-resistant hose
Through the design of multi-layer composite structure and high-performance materials, the problems of pressure resistance and structural stability of high-temperature resistant hoses under high temperature and high pressure environments have been solved, realizing reliable delivery and long-term use under harsh working conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENGSHUI JULI TECHNOLOGY CO LTD
- Filing Date
- 2025-08-21
- Publication Date
- 2026-06-02
AI Technical Summary
Existing high-temperature resistant hoses lack sufficient pressure resistance and structural stability under high temperature and high pressure environments, making them prone to deformation, expansion, or rupture, leading to media leakage and limiting their application range and reliability under high-pressure conditions.
It adopts a multi-layer composite structure, including a flexible steel mesh sleeve, a reinforced sleeve, a high-temperature resistant sleeve, and a rubber protective sleeve, which are bonded together with epoxy resin adhesive. Combined with the stainless steel flexible steel mesh sleeve, it enhances compressive strength and structural stability. The design includes threaded joints and sealing rings to ensure convenient connection and reliable sealing.
It significantly improves the compressive strength and structural stability of hoses under high temperature and high pressure environments, prevents deformation and rupture, ensures the safety and continuity of media transportation, and extends service life.
Smart Images
Figure CN224315652U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hose technology, specifically to a high-temperature resistant and pressure-resistant hose. Background Technology
[0002] A hose is a flexible, bendable tubular object, typically made of materials such as rubber, plastic, or metal, used to transport liquids, gases, or particles. Its flexibility and portability allow it to adapt to various complex environments and applications, making it widely used in agricultural irrigation, industrial conveying, medical equipment, daily cleaning, and many other fields. It is an indispensable tool in modern life.
[0003] In industrial production, high-temperature operating environments, and numerous applications requiring internal pressure resistance, higher demands are placed on hoses. In existing technologies, some hoses utilize special high-temperature resistant materials to meet high-temperature requirements. These materials maintain structural stability at high temperatures and are not easily softened or degraded.
[0004] However, these hoses, which are designed with high-temperature resistance in mind, often sacrifice some pressure resistance in their material properties or structural design. In actual use, when the pressure inside the hose exceeds its limit, or when subjected to external compression or impact, these hoses are prone to deformation, expansion, or even rupture, leading to media leakage, affecting production continuity, and even causing safety accidents. Therefore, the problem of insufficient pressure resistance in existing high-temperature hoses limits their application range and reliability under high-pressure conditions. Hence, a high-temperature and pressure-resistant hose is proposed to solve the problems mentioned above. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a high-temperature and pressure-resistant hose, solving the problem that existing hoses lack sufficient pressure resistance and structural stability under high-temperature and high-pressure environments, making it difficult to meet the usage requirements of harsh working conditions.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A high-temperature and pressure-resistant flexible hose includes a hose body, the exterior of which is provided with a high-temperature and pressure-resistant structure;
[0008] The high-temperature and pressure-resistant structure includes an elastic steel mesh sleeve bonded to the outer peripheral wall of the pipe body. A reinforcing sleeve is bonded to the outer peripheral wall of the elastic steel mesh sleeve. Both the outer peripheral wall of the reinforcing sleeve and the inner peripheral wall of the pipe body are bonded with high-temperature resistant sleeves. A rubber protective sleeve is bonded to the outer peripheral wall of the external high-temperature resistant sleeve.
[0009] Furthermore, connectors are fixedly connected to both the left and right sides of the tube, and threaded grooves are formed on the inner circumferential wall of the connectors.
[0010] Furthermore, each of the two connectors is fixedly connected to a sealing ring on its opposite side, and the connector is cylindrical.
[0011] Furthermore, the pipe body, high-temperature resistant pipe sleeve, elastic steel mesh pipe sleeve, reinforced pipe sleeve, and rubber protective pipe sleeve are bonded together with epoxy resin high-temperature adhesive.
[0012] Furthermore, the elastic steel mesh sleeve is made of stainless steel.
[0013] Furthermore, the pipe body, high-temperature resistant sleeve, elastic steel mesh sleeve, reinforced sleeve, and rubber protective sleeve are all bonded between the two connectors.
[0014] Compared with the prior art, this utility model provides a high-temperature and pressure-resistant flexible hose, which has the following beneficial effects:
[0015] This high-temperature and pressure-resistant hose features a composite structure consisting of an elastic steel mesh sleeve, a reinforcing sleeve, a high-temperature resistant sleeve, and a rubber protective sleeve on the outer layer. The elastic steel mesh sleeve is made of stainless steel and bonded with high-temperature epoxy resin. This significantly enhances the hose's pressure resistance and overall structural stability under high-temperature conditions, effectively preventing deformation and rupture due to high temperature or pressure. The threaded grooved circular connectors at both ends, combined with the sealing ring design on opposite sides, ensure convenient, tight, and reliable connection to external equipment, preventing media leakage. The rubber protective sleeve covering the connectors further enhances the hose's wear resistance and impact resistance, enabling it to be safely and reliably used in harsh high-temperature and high-pressure conditions, extending its service life. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;
[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the tube body of this utility model;
[0018] Figure 3 This is a schematic diagram of the elastic steel mesh sleeve structure of this utility model;
[0019] Figure 4 This utility model Figure 2 A magnified structural diagram of point A is shown.
[0020] In the diagram: 1. Pipe body; 2. Connector; 3. Threaded groove; 4. Sealing ring; 5. High-temperature resistant pipe sleeve; 6. Elastic steel mesh pipe sleeve; 7. Reinforced pipe sleeve; 8. Rubber protective pipe sleeve. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figures 1 to 4 The high-temperature and pressure-resistant hose in this embodiment includes a hose body 1, and the outside of the hose body 1 is provided with a high-temperature and pressure-resistant structure.
[0023] In this embodiment, connectors 2 are fixedly connected to both the left and right sides of the pipe body 1. The inner circumferential wall of the connector 2 is provided with a threaded groove 3. Sealing rings 4 are fixedly connected to the opposite sides of the two connectors 2. The connectors 2 are cylindrical.
[0024] In this embodiment, the high-temperature and pressure-resistant structure includes an elastic steel mesh sleeve 6 bonded to the outer peripheral wall of the pipe body 1. The elastic steel mesh sleeve 6 is made of stainless steel. A reinforcing sleeve 7 is bonded to the outer peripheral wall of the elastic steel mesh sleeve 6. A high-temperature resistant sleeve 5 is bonded to both the outer peripheral wall of the reinforcing sleeve 7 and the inner peripheral wall of the pipe body 1. A rubber protective sleeve 8 is bonded to the outer peripheral wall of the outer high-temperature resistant sleeve 5. The pipe body 1, the high-temperature resistant sleeve 5, the elastic steel mesh sleeve 6, the reinforcing sleeve 7, and the rubber protective sleeve 8 are bonded together with epoxy resin high-temperature adhesive. The pipe body 1, the high-temperature resistant sleeve 5, the elastic steel mesh sleeve 6, the reinforcing sleeve 7, and the rubber protective sleeve 8 are all bonded between two connectors 2.
[0025] It should be noted that, through the design of a multi-layered composite structure and the selection of high-performance materials, this high-temperature and pressure-resistant hose successfully solves the problem of balancing high temperature and pressure resistance. It can withstand high internal pressure and external impact at temperatures of several hundred degrees or even higher, maintaining shape stability and preventing leakage. Its connection design ensures convenient installation and reliable sealing, while the comprehensive outer protection extends the overall service life of the hose. This makes the hose suitable for high-temperature and high-pressure industrial environments, effectively improving system safety and operational continuity.
[0026] It should be noted that in actual production, the pipe body 1 is made of polytetrafluoroethylene (PTFE), which has an extremely low coefficient of friction and excellent chemical stability. However, it softens at high temperatures, so the inner high-temperature resistant sleeve 5 and the elastic steel mesh sleeve 6 provide crucial support. The high-temperature resistant sleeve 5 uses a specially formulated silicone rubber, which not only withstands temperatures up to 230℃ but also possesses good flexibility, absorbing vibration to a certain extent. The reinforcing sleeve 7 is made of fiberglass braid impregnated with high-temperature resistant resin. This material is not only high-strength but also lightweight, corrosion-resistant, and has good compatibility with epoxy resin. The elastic steel mesh sleeve 6 is made of 316L stainless steel, which performs excellently in high-temperature and certain corrosive environments. The braiding density is precisely calculated to ensure a balance between flexibility and strength. The rubber protective sleeve 8 is made of neoprene rubber because it is not only wear-resistant, weather-resistant, and oil-resistant but also provides good UV resistance, making it suitable for outdoor or complex environments. All bonding processes are carried out in a strictly controlled environment. First, the bonding surfaces are thoroughly cleaned and roughened. Then, high-temperature resistant epoxy resin is evenly applied and cured under certain pressure and temperature to ensure that strong chemical bonds and physical anchoring are formed between the layers, minimizing the risk of interlayer delamination.
[0027] It should be noted that the specific formulation used in the high-temperature resistant sleeve 5 is as follows: reinforcing silicone rubber: 100 parts; granular conductive acetylene black: 18 parts; hexamethylcyclotrisilazane: 8 parts; liquid silicone rubber: 5 parts. This formulation, through the synergistic effect of the silicone rubber matrix and the reinforcing filler, ensures that the sleeve maintains structural stability at a high temperature of 230℃, while also possessing flexibility and vibration absorption capabilities. The addition of hexamethylcyclotrisilazane further optimizes its heat aging resistance, making it suitable for long-term use under high-temperature conditions.
[0028] It should be noted that the outer layer of the high-pressure hose can be forcibly cooled. High-thermal-conductivity aluminum alloy or stainless steel is selected, and the jacket is internally machined into a spiral or axial grooved water channel to increase the contact area between the cooling water and the hose, improving heat exchange efficiency. O-rings or sealing strips are used at both ends of the jacket to prevent cooling water leakage. Thermally conductive silicone grease is filled between the jacket and the hose to reduce contact thermal resistance. This ensures that heat is quickly transferred from the hose to the cooling water. The water-cooled jacket method involves the following steps: designing a metal jacket that closely fits the shape of the high-pressure hose. The jacket forms a closed cooling water channel. During operation, the hose is placed inside the jacket. The heat from the high-temperature resistant sleeve 5 is conducted to the outer layer through the elastic steel mesh sleeve 6. Therefore, the jacket is tightly attached to the outside of the steel mesh layer, prioritizing the cooling of this area. A pump continuously circulates cooling water within the jacket's channels. After absorbing heat from the outer layer of the hose, the cooling water's temperature rises and is then transported to a radiator or cooling tower for cooling, before being recycled. By utilizing water's excellent thermal conductivity and large heat capacity, it can continuously, stably, and efficiently remove heat from the outer layer of the hose, achieving forced cooling.
[0029] The beneficial effects of the above embodiments are as follows:
[0030] High-temperature, high-pressure fluid flows through the inside of pipe body 1. Heat is absorbed sequentially by the inner high-temperature resistant sleeve 5, the elastic steel mesh sleeve 6, the reinforced sleeve 7, and the outer high-temperature resistant sleeve 8, and then conducted to the rubber protective sleeve 8. The elastic steel mesh sleeve 6 provides radial support through its mesh structure to suppress the expansion of pipe body 1 under high pressure, while allowing for some deformation to absorb vibration and impact. The reinforced sleeve 7 further enhances the overall compressive strength and fatigue resistance, and disperses local stress. The high-temperature resistant sleeve 5 acts as an insulation layer, isolating the high-temperature fluid from the external environment and buffering the difference in thermal expansion and contraction between layers through its flexibility. The rubber protective sleeve 8, as the outermost layer, provides... Provides wear-resistant, weather-resistant, and UV-resistant environmental protection. Each layer of material is cleaned and roughened under strict control using high-temperature resistant epoxy resin before being coated. After being pressed and cured at high temperature, chemical bonding and physical anchoring are formed to ensure no gaps between layers and uniform heat and pressure transfer. The connector 2 is fastened to the interface of external equipment through the threaded groove 3 to achieve axial positioning and torque transmission. The sealing ring 4 is compressed and filled during installation to block the fluid leakage path and adapt to dimensional changes caused by thermal expansion and contraction. The overall structure ensures stable transmission and long-term reliability under extreme working conditions through the synergistic effect of multiple layers.
[0031] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that achieves the desired beneficial effect can be implemented. Furthermore, all electrical components in this embodiment are electrically connected to the main controller and power supply. The main controller can be a conventional, known device such as a computer that performs control functions. Those skilled in the art can control the electrical components through simple programming, and the existing disclosed power connection technologies are common knowledge in the field. Therefore, this embodiment will not elaborate further on their specific structural composition and working principles.
[0032] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A high-temperature resistant and pressure-resistant flexible hose, comprising a hose body (1), characterized in that: The outside of the tube body (1) is provided with a high temperature and pressure resistant structure; The high-temperature and pressure-resistant structure includes an elastic steel mesh sleeve (6) bonded to the outer peripheral wall of the pipe body (1), a reinforcing sleeve (7) bonded to the outer peripheral wall of the elastic steel mesh sleeve (6), a high-temperature resistant sleeve (5) bonded to the outer peripheral wall of the reinforcing sleeve (7) and the inner peripheral wall of the pipe body (1), and a rubber protective sleeve (8) bonded to the outer peripheral wall of the high-temperature resistant sleeve (5).
2. The high-temperature resistant and pressure-resistant flexible hose according to claim 1, characterized in that: The pipe body (1) is fixedly connected to the left and right sides with connectors (2), and the inner circumferential wall of the connectors (2) is provided with threaded grooves (3).
3. The high-temperature resistant and pressure-resistant flexible hose according to claim 2, characterized in that: Both of the two connectors (2) are fixedly connected to a sealing ring (4) on opposite sides, and the connectors (2) are cylindrical.
4. The high-temperature resistant and pressure-resistant flexible hose according to claim 1, characterized in that: The pipe body (1), high-temperature resistant pipe sleeve (5), elastic steel mesh pipe sleeve (6), reinforced pipe sleeve (7) and rubber protective pipe sleeve (8) are bonded together with epoxy resin high-temperature adhesive.
5. The high-temperature resistant and pressure-resistant flexible hose according to claim 1, characterized in that: The elastic steel mesh sleeve (6) is made of stainless steel.
6. The high-temperature and pressure-resistant flexible hose according to claim 2, characterized in that: The pipe body (1), high-temperature resistant sleeve (5), elastic steel mesh sleeve (6), reinforced sleeve (7) and rubber protective sleeve (8) are all bonded between the two connectors (2).