Novel corrosion-resistant stainless steel valve
By employing a combination of titanium alloy, polyurethane, and ceramic layers in stainless steel valves, the corrosion resistance and sealing performance issues of stainless steel valves in corrosive fluid environments are solved, extending their service life and improving their efficiency.
Patent Information
- Application Number
- CN202423294304.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-30
AI Technical Summary
In the prior art, there is a problem that stainless steel valves suffer from internal wall corrosion due to the flow of corrosive fluids during use, which affects their service life and efficiency.
It adopts a combined structure of titanium alloy layer, polyurethane layer and ceramic layer. The inner wall of titanium alloy layer is bonded to the main valve body, the ceramic layer is set inside the polyurethane layer to enhance corrosion resistance, and the external sealing and docking accuracy are improved by rubber sealing ring and threaded connection.
It improves the valve's corrosion resistance and sealing performance, extends its service life, and increases its efficiency.
Smart Images

Figure CN223499030U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of valve technology, specifically to a novel corrosion-resistant stainless steel valve. Background Technology
[0002] Valves are control components in fluid transport systems, primarily used for opening and closing pipelines, controlling flow direction, and regulating and controlling the parameters of the transported medium. Valves can be categorized by function into shut-off valves, check valves, and regulating valves, possessing functions such as shut-off, regulation, flow diversion, backflow prevention, pressure stabilization, flow splitting, and overflow pressure relief. Valves play a crucial role as control elements in fluid pipeline systems, mainly used for isolating equipment and pipeline systems, regulating flow, and preventing backflow. They can be used to control the flow of various types of fluids, including air, water, steam, various corrosive media, slurry, oil, liquid metals, and radioactive media. Stainless steel valves refer to valves made of stainless steel. To improve the control efficiency of fluid flow, a new type of stainless steel valve is needed; however, existing new stainless steel valves still have the following shortcomings:
[0003] When existing stainless steel valves are in use, the valves often have different types of fluids flowing through them, some of which are corrosive. This causes corrosion to the valve's inner wall and affects its service life, resulting in reduced practicality and efficiency.
[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and proposed a new type of corrosion-resistant stainless steel valve. Utility Model Content
[0005] The purpose of this invention is to provide a novel corrosion-resistant stainless steel valve to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a novel corrosion-resistant stainless steel valve, comprising a main valve body, a titanium alloy layer, a polyurethane layer, and a ceramic layer. A regulating valve is provided at the upper end of the main valve body, and a titanium alloy layer is added to the inner wall of the main valve body. A polyurethane layer is provided inside the titanium alloy layer, and a ceramic layer is provided inside the polyurethane layer. First mounting rings are provided at both ends of the outer surface of the main valve body, and a first threaded mounting groove is formed inside each first mounting ring. A connecting pipe is provided on the left side of the outer surface of the main valve body, and second mounting rings are added to both ends of the connecting pipe. Second threaded mounting grooves are formed inside each second mounting ring, and mounting bolts are connected inside the second threaded mounting grooves. Installation mating grooves are formed at both ends of the inner surface of the main valve body, and rubber sealing rings are connected inside the installation mating grooves.
[0007] Furthermore, a ceramic layer and a titanium alloy layer are respectively disposed on the inner and outer sides of the polyurethane layer, and the polyurethane layer is disposed and confined between the ceramic layer and the titanium alloy layer.
[0008] Furthermore, the inner side of the polyurethane layer and the outer side of the ceramic layer are horizontally distributed, and the inner side of the polyurethane layer and the outer side of the ceramic layer are closely bonded together.
[0009] Furthermore, there are two first mounting rings, and the two first mounting rings are symmetrically arranged at both ends of the outside of the main valve body with respect to the central axis of the front of the main valve body.
[0010] Furthermore, the outer sides of the first mounting ring and the outer sides of the second mounting ring are horizontally distributed, and the outer sides of the first mounting ring and the outer sides of the second mounting ring are closely fitted together.
[0011] Furthermore, the external dimensions of the connecting pipe are adapted to the internal dimensions of the second mounting ring, and the second mounting ring and the connecting pipe are fixedly connected by welding.
[0012] Furthermore, the internal dimensions of the second threaded mounting groove are adapted to the external dimensions of the mounting bolt, and the mounting bolt is embeddedly connected to the second mounting ring through the second threaded mounting groove.
[0013] Furthermore, the internal dimensions of the mounting groove are adapted to the external dimensions of the rubber sealing ring, and the rubber sealing ring is connected to the main valve body through the mounting groove.
[0014] This utility model provides a novel corrosion-resistant stainless steel valve, which has the following beneficial effects:
[0015] 1. This utility model, through the addition of a titanium alloy layer, enables the titanium alloy layer to be installed on the inner wall of the main valve body in the use of a new type of stainless steel corrosion-resistant valve via adhesive bonding. Titanium alloy has excellent corrosion resistance, light weight, and high mechanical strength, making it suitable for environments such as atmosphere, fresh water, seawater, and high-temperature steam. It is particularly resistant to media such as aqua regia and chlorine water. At the same time, the polyurethane layer set inside the titanium alloy layer has acid and alkali resistance, corrosion resistance, and high temperature resistance, thereby improving the valve's corrosion resistance. Furthermore, the ceramic layer set inside the polyurethane layer has extremely high wear resistance, corrosion resistance, and erosion resistance, as well as good thermal insulation and low thermal expansion, making it suitable for extreme environments. This further extends the service life of the valve and improves its overall practicality and efficiency.
[0016] 2. This utility model, through the setting of the rubber sealing ring, enables the installation of the mounting bolt into the second mounting ring via the second threaded mounting groove when using the new stainless steel corrosion-resistant valve. The mounting bolt is then tightened to fix the second mounting ring to the first mounting ring, thus quickly completing the docking installation between the main valve body and the connecting pipe. The rubber sealing ring is installed into the mounting docking groove inside the main valve body, increasing the sealing performance of the main valve body during use. Simultaneously, the mounting docking groove is also located at the front end of the connecting pipe, thereby increasing the accuracy of the docking process between the connecting pipe and the main valve body, further improving the overall practicality and efficiency of the valve. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of a novel corrosion-resistant stainless steel valve according to the present invention.
[0018] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the main valve body of a novel stainless steel corrosion-resistant valve according to this utility model.
[0019] Figure 3 This is a three-dimensional unfolded structural diagram of the rubber sealing ring of a novel stainless steel corrosion-resistant valve according to this utility model.
[0020] In the diagram: 1. Main valve body; 2. Control valve; 3. Titanium alloy layer; 4. Polyurethane layer; 5. Ceramic layer; 6. First mounting ring; 7. First threaded mounting groove; 8. Connecting pipe; 9. Second mounting ring; 10. Second threaded mounting groove; 11. Mounting bolt; 12. Mounting mating groove; 13. Rubber sealing ring. Detailed Implementation
[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0022] like Figures 1 to 3As shown, a novel corrosion-resistant stainless steel valve includes a main valve body 1, a titanium alloy layer 3, a polyurethane layer 4, and a ceramic layer 5. A regulating valve 2 is installed at the upper end of the main valve body 1. A titanium alloy layer 3 is added to the inner wall of the main valve body 1, and a polyurethane layer 4 is installed inside the titanium alloy layer 3. A ceramic layer 5 is installed inside the polyurethane layer 4. First mounting rings 6 are installed at both ends of the outer side of the main valve body 1, and first threaded mounting grooves 7 are formed inside the first mounting rings 6. Ceramic layers 5 and titanium alloy layers 3 are respectively installed on the inner and outer sides of the polyurethane layer 4, and the polyurethane layer 4 is positioned and confined between the ceramic layer 5 and the titanium alloy layer 3. The inner side of the polyurethane layer 4 and the outer side of the ceramic layer 5 are horizontally distributed, and the inner side of the polyurethane layer 4 and the outer side of the ceramic layer 5 are tightly fitted. Two first mounting rings 6 are provided. The first mounting ring 6 is symmetrically arranged at both ends of the outside of the main valve body 1 along the central axis of the front of the main valve body 1. The titanium alloy layer 3 is installed on the inner wall of the main valve body 1 by adhesive bonding. The titanium alloy has good corrosion resistance, light weight, and high mechanical strength, and is suitable for environments such as atmosphere, fresh water, seawater, and high-temperature water vapor. It has excellent corrosion resistance to media such as aqua regia and chlorine water. At the same time, the polyurethane layer 4 set inside the titanium alloy layer 3 has the performance of acid and alkali resistance, corrosion resistance, and high temperature resistance, thereby improving the corrosion resistance of the valve. Meanwhile, the ceramic layer 5 set inside the polyurethane layer 4 has extremely high wear resistance, corrosion resistance, and erosion resistance, as well as good thermal insulation and low thermal expansion, making it suitable for extreme environments, further extending the service life of the valve and improving the overall practicality and efficiency of the valve.
[0023] like Figures 1 to 3As shown, a connecting pipe 8 is provided on the left side of the main valve body 1, and second mounting rings 9 are added to both ends of the connecting pipe 8. A second threaded mounting groove 10 is formed inside the second mounting ring 9, and a mounting bolt 11 is connected inside the second threaded mounting groove 10. Mounting mating grooves 12 are formed at both ends of the main valve body 1, and rubber sealing rings 13 are connected inside the mounting mating grooves 12. The external dimensions of the connecting pipe 8 are adapted to the internal dimensions of the second mounting ring 9, and the second mounting ring 9 and the connecting pipe 8 are fixedly connected by welding. The internal dimensions of the second threaded mounting groove 10 are adapted to the external dimensions of the mounting bolt 11, and the mounting bolt 11 is embedded in the second mounting ring 9 through the second threaded mounting groove 10. The internal dimensions of the mounting mating groove 12 are adapted to the external dimensions of the rubber sealing ring 13, and the rubber sealing ring 13 is connected to the main valve body 1 through the mounting mating groove 12. The connection is achieved by fixing the first mounting ring 6 to both ends of the main valve body 1, and simultaneously assembling the first mounting ring 6 with the second mounting ring 9. The first threaded mounting groove 7 and the second threaded mounting groove 10 are aligned, and the mounting bolt 11 is inserted into the second mounting ring 9 via the second threaded mounting groove 10. The mounting bolt 11 is then tightened to secure the second mounting ring 9 to the first mounting ring 6, thus quickly completing the connection between the main valve body 1 and the connecting pipe 8. A rubber sealing ring 13 is then installed into the mounting groove 12 inside the main valve body 1. The rubber sealing ring 13 increases the sealing performance of the main valve body 1 during use. The mounting groove 12 is also located at the front end of the connecting pipe 8, thereby increasing the accuracy of the connection between the connecting pipe 8 and the main valve body 1 through the rubber sealing ring 13, further improving the overall practicality and efficiency of the valve.
[0024] In summary, this novel stainless steel corrosion-resistant valve is used by first regulating the opening and closing of the valve through the regulating valve 2 located at the upper end of the main valve body 1. The titanium alloy layer 3 is then bonded to the inner wall of the main valve body 1. Titanium alloy possesses excellent corrosion resistance, is lightweight, and has high mechanical strength, making it suitable for environments such as air, fresh water, seawater, and high-temperature steam. It exhibits particularly good corrosion resistance to media such as aqua regia and chlorine water. Simultaneously, the polyurethane layer 4 located inside the titanium alloy layer 3 provides acid and alkali resistance, corrosion resistance, and high-temperature resistance, thereby enhancing the valve's corrosion resistance. Furthermore, the ceramic layer 5 located inside the polyurethane layer 4 possesses extremely high wear resistance, corrosion resistance, and erosion resistance, as well as good thermal insulation and low thermal expansion. For extreme environments, to further extend the service life of the valve, the mounting bolt 11 is then installed into the second mounting ring 9 via the second threaded mounting groove 10, and the mounting bolt 11 is then tightened to fix the second mounting ring 9 to the first mounting ring 6, thereby quickly completing the docking installation of the main valve body 1 and the connecting pipe 8. The rubber sealing ring 13 is then installed into the mounting docking groove 12 opened inside the main valve body 1. The rubber sealing ring 13 increases the sealing performance of the main valve body 1 during use. At the same time, the mounting docking groove 12 is also opened at the front end of the connecting pipe 8, thereby increasing the accuracy of the docking process between the connecting pipe 8 and the main valve body 1 through the rubber sealing ring 13, further improving the overall practicality and efficiency of the valve.
[0025] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. A novel corrosion-resistant stainless steel valve, comprising a main valve body (1), a titanium alloy layer (3), a polyurethane layer (4), and a ceramic layer (5), characterized in that, The main valve body (1) is provided with a regulating valve (2) at the upper end, and a titanium alloy layer (3) is added to the inner wall of the main valve body (1). A polyurethane layer (4) is provided inside the titanium alloy layer (3), and a ceramic layer (5) is provided inside the polyurethane layer (4). A first mounting ring (6) is provided at both ends of the main valve body (1), and a first threaded mounting groove (7) is opened inside the first mounting ring (6). A connecting pipe (8) is provided on the left side of the main valve body (1), and a second mounting ring (9) is added to both ends of the connecting pipe (8). A second threaded mounting groove (10) is opened inside the second mounting ring (9), and a mounting bolt (11) is connected inside the second threaded mounting groove (10). A mounting docking groove (12) is opened at both ends of the main valve body (1), and a rubber sealing ring (13) is connected inside the mounting docking groove (12).
2. The novel corrosion-resistant stainless steel valve according to claim 1, characterized in that, The polyurethane layer (4) has a ceramic layer (5) and a titanium alloy layer (3) on its inner and outer sides, respectively, and the polyurethane layer (4) is disposed and confined between the ceramic layer (5) and the titanium alloy layer (3).
3. The novel corrosion-resistant stainless steel valve according to claim 1, characterized in that, The inner side of the polyurethane layer (4) and the outer side of the ceramic layer (5) are horizontally distributed, and the inner side of the polyurethane layer (4) and the outer side of the ceramic layer (5) are closely attached.
4. A novel corrosion-resistant stainless steel valve according to claim 1, characterized in that, The number of the first mounting ring (6) is set to two, and the two first mounting rings (6) are symmetrically arranged at both ends of the outside of the main valve body (1) with the front central axis of the main valve body (1).
5. A novel corrosion-resistant stainless steel valve according to claim 1, characterized in that, The outer sides of the first mounting ring (6) and the outer sides of the second mounting ring (9) are horizontally distributed, and the outer sides of the first mounting ring (6) and the outer sides of the second mounting ring (9) are closely fitted.
6. A novel corrosion-resistant stainless steel valve according to claim 1, characterized in that, The external dimensions of the connecting pipe (8) are adapted to the internal dimensions of the second mounting ring (9), and the second mounting ring (9) and the connecting pipe (8) are fixedly connected by welding.
7. A novel corrosion-resistant stainless steel valve according to claim 1, characterized in that, The internal dimensions of the second threaded mounting groove (10) are adapted to the external dimensions of the mounting bolt (11), and the mounting bolt (11) is embeddedly connected to the second mounting ring (9) through the second threaded mounting groove (10).
8. A novel corrosion-resistant stainless steel valve according to claim 1, characterized in that, The internal dimensions of the mounting groove (12) are adapted to the external dimensions of the rubber sealing ring (13), and the rubber sealing ring (13) is connected to the main valve body (1) through the mounting groove (12).