Corrosion-resistant fluid control equipment

Abstract

The utility model relates to the technical field of fluid control equipment, and discloses corrosion-resistant fluid control equipment which comprises a valve body, a valve cover is arranged on the upper surface of the valve body, a rotating handle is in threaded connection with the interior of the valve cover, one end of the rotating handle is fixedly connected with a valve element, and the side wall of the valve element is rotationally connected with the interior of the valve body. A fixing assembly is arranged on the side wall of the valve body, and a sealing assembly is arranged in the valve body. The fixing assembly comprises a connecting pipe, the side wall of the connecting pipe is fixedly connected to the interior of the valve body, a mounting groove is formed in the connecting pipe, an external pipe is arranged on the side wall of the valve body, and a fixing block is fixedly connected to the side wall of the external pipe. According to the quick connecting device, the sliding block is shifted to relieve fixing of the clamping bead, then the connecting pipe is inserted into the external connecting pipe, the clamping bead is clamped with the mounting groove, then the sliding block is loosened to fix the clamping bead, the quick connecting effect is achieved, and the mounting efficiency of equipment is improved through the structure.

Description

Technical Field

[0001] This utility model relates to the field of fluid control equipment technology, and in particular to a corrosion-resistant fluid control equipment. Background Technology

[0002] In industrial production, corrosion-resistant fluid control equipment is widely used in many fields such as chemical, petroleum, and pharmaceutical industries, playing a crucial role in ensuring the safety and stability of production processes. This equipment is used to precisely control the flow rate, pressure, and direction of corrosive fluids, and its performance directly affects production efficiency, product quality, equipment lifespan, and maintenance costs. With the continuous development of industrial technology, the requirements for corrosion-resistant fluid control equipment are also increasing, especially in terms of connection structures, requiring more efficient and reliable connection methods to adapt to complex working conditions.

[0003] Existing fluid control equipment typically employs traditional threaded connections and flange connections. Threaded connections join two components together through the engagement of threads, utilizing the friction between the threads to maintain connection stability. Flange connections, on the other hand, involve placing flanges at the ends of two connecting components, securing the flanges with bolts, and adding a gasket in between to ensure a tight seal.

[0004] Existing fluid control equipment typically uses flange or threaded connections. When maintenance or replacement of components is required, the bolts need to be loosened one by one, resulting in excessive time spent on disassembly and connection, thus reducing work efficiency. Therefore, a corrosion-resistant fluid control device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a corrosion-resistant fluid control device, which aims to improve the problem that the existing technology usually uses flange or threaded connections, which requires loosening the bolts one by one when maintenance and replacement of parts are needed, resulting in excessive time spent on the disassembly and connection process and thus reducing work efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A corrosion-resistant fluid control device includes a valve body, a valve cover on the upper surface of the valve body, a rotating handle threadedly connected inside the valve cover, a valve core fixedly connected to one end of the rotating handle, a valve core sidewall rotatably connected inside the valve body, a fixing component provided on the sidewall of the valve body, and a sealing component provided inside the valve body.

[0008] The fixing assembly includes a connecting pipe, the side wall of which is fixedly connected to the inside of the valve body. An installation groove is provided inside the connecting pipe. An outer connecting pipe is provided on the side wall of the valve body. A fixing block is fixedly connected to the side wall of the outer connecting pipe. A sliding block is slidably connected to the side wall of the outer connecting pipe. A first spring is provided on the side wall of the outer connecting pipe. A retaining bead is slidably connected inside the outer connecting pipe. A limit ring is fixedly connected to the side wall of the outer connecting pipe. A sealing ring is provided on the side wall of the limit ring. The side wall of the connecting pipe is slidably connected to the inside of the outer connecting pipe. The side wall of the retaining bead is slidably connected to the inside of the installation groove.

[0009] As a further description of the above technical solution:

[0010] The sealing assembly includes a retaining ring, the sidewall of which is fixedly connected to the inside of the valve body, and a valve seat is slidably connected inside the retaining ring;

[0011] As a further description of the above technical solution:

[0012] One end of the first spring is fixedly connected to the side wall of the fixed block, and the other end of the first spring is fixedly connected to the side wall of the sliding block.

[0013] As a further description of the above technical solution:

[0014] A second sealing ring is provided on the side wall of the valve seat, and the side wall of the second sealing ring is attached to the side wall of the valve core.

[0015] As a further description of the above technical solution:

[0016] A mounting base is fixedly connected inside the fixed ring, and a second spring is provided on one side wall of the mounting base;

[0017] As a further description of the above technical solution:

[0018] One end of the second spring is fixedly connected to one side wall of the mounting base, and the other end of the second spring is fixedly connected to a second mounting base, the side wall of the second mounting base being fixedly connected to the side wall of the valve seat.

[0019] As a further description of the above technical solution:

[0020] The valve body has an outer layer made of ceramic matrix composite material, which provides the valve with overall mechanical strength and anti-aging performance. The outer layer has an intermediate layer made of chromium material on its sidewall, which buffers and disperses stress and prevents the coating from peeling off.

[0021] As a further description of the above technical solution:

[0022] The intermediate layer has an inner layer on its sidewall. The inner layer is made of polytetrafluoroethylene and is used to contact the medium, serving as an isolation and corrosion protection layer.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the locking bead is released by moving the sliding block, and then the connecting pipe is inserted into the outer pipe to make the locking bead engage with the mounting groove. Then the sliding block is released to fix the locking bead, achieving a quick connection effect. This solves the problem that some corrosion-resistant fluid control equipment usually uses flange or threaded connections. When maintenance and replacement of parts are required, it is necessary to loosen the bolts one by one, which leads to excessive time spent on disassembly and connection, thereby reducing work efficiency. The above structure improves the installation efficiency of the equipment.

[0025] 2. In this utility model, by installing a fixing ring inside the valve body and connecting it to the valve seat through a second spring, when the valve core is closed, the second spring generates elastic force to push the valve seat tightly against the valve core to form a seal. When there is a problem with the sealing surface, the second spring can push the valve seat and the valve core to fit together evenly in the circumferential direction, ensuring the reliability of the seal. A protective layer is formed by the cooperation between the outer layer, the middle layer and the inner layer, which improves the corrosion resistance, oxidation resistance and wear resistance of the valve body. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a corrosion-resistant fluid control device proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the valve body of a corrosion-resistant fluid control device proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the external pipe of a corrosion-resistant fluid control device proposed in this utility model;

[0029] Figure 4 This is a schematic diagram of the internal structure of the valve body of a corrosion-resistant fluid control device proposed in this utility model.

[0030] Figure 5 This is a schematic diagram of the structure of the fixing ring of a corrosion-resistant fluid control device proposed in this utility model;

[0031] Figure 6 This is a schematic diagram of the valve body material of a corrosion-resistant fluid control device proposed in this utility model.

[0032] Legend:

[0033] 1. Valve body; 2. Valve cover; 3. Rotary handle; 4. Valve core; 5. Connecting pipe; 6. Fixing block; 7. External pipe; 8. Mounting groove; 9. Sliding block; 10. First spring; 11. Clamping ball; 12. Limiting ring; 13. Sealing ring one; 14. Fixing ring; 15. Valve seat; 16. Mounting seat one; 17. Second spring; 18. Mounting seat two; 19. Sealing ring two; 20. Outer layer; 21. Middle layer; 22. Inner layer. Detailed Implementation

[0034] 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.

[0035] Reference Figure 1 - Figure 3 This utility model provides an embodiment of a corrosion-resistant fluid control device, comprising a valve body 1, a valve cover 2 on the upper surface of the valve body 1, a rotating handle 3 threadedly connected to the inside of the valve cover 2, a valve core 4 fixedly connected to one end of the rotating handle 3, the side wall of the valve core 4 rotatably connected to the inside of the valve body 1, a fixing assembly provided on the side wall of the valve body 1, and a sealing assembly provided inside the valve body 1; the fixing assembly includes a connecting pipe 5, the side wall of the connecting pipe 5 fixedly connected to the inside of the valve body 1, an installation groove 8 opened inside the connecting pipe 5, an outer pipe 7 provided on the side wall of the valve body 1, a fixing block 6 fixedly connected to the side wall of the outer pipe 7, and a sliding block 6 slidably connected to the side wall of the outer pipe 7. The movable block 9 can be manually moved during operation to control the position of the locking bead 11. The outer pipe 7 has a first spring 10 on its side wall and the locking bead 11 is slidably connected inside the outer pipe 7 to cooperate with the mounting groove 8 for quick connection and fixation. The outer pipe 7 has a limit ring 12 fixedly connected to its side wall to limit the sliding range of the sliding block 9. The limit ring 12 has a sealing ring 13 on its side wall. The connecting pipe 5 is slidably connected to the side wall of the outer pipe 7 and the locking bead 11 is slidably connected to the side wall of the mounting groove 8. One end of the first spring 10 is fixedly connected to the side wall of the fixed block 6 and the other end of the first spring 10 is fixedly connected to the side wall of the sliding block 9.

[0036] When using this corrosion-resistant fluid control device, and when it is necessary to connect to the external pipe 7, firstly, the sliding block 9 is moved, which will compress the first spring 10. One end of the first spring 10 is fixedly connected to the side wall of the fixing block 6, which provides a stable support point. The compressed first spring 10 stores elastic potential energy and releases the compression on the retaining bead 11, making the retaining bead 11 loose. Then, the connecting pipe 5 is inserted into the external pipe 7. The side wall of the connecting pipe 5 is fixedly connected to the inside of the valve body 1. During this process, the sealing ring 13 plays a role, filling the gap between the connecting pipe 5 and the external pipe 7. By utilizing its own elastic deformation, it tightly fits the contact surface of the two, thereby achieving a seal between them and effectively preventing fluid leakage at the connection point. During insertion, the retaining bead 11 is aligned with the mounting groove 8 inside the connecting pipe 5. Once aligned, the sliding block 9 is released. At this time, the first spring 10 releases its stored elastic potential energy, pushing the sliding block 9 to slide. The sliding block 9 then compresses the retaining bead 11, locking it inside the mounting groove 8. This achieves the fixing effect between the connecting pipe 5 and the outer pipe 7, ensuring that the connection will not loosen due to fluid pressure or other factors during equipment operation. During equipment operation, when the handle 3 is rotated, it drives the valve core 4 to rotate inside the valve body 1. The side wall of the valve core 4 is rotatably connected to the inside of the valve body 1. By changing the position of the valve core 4 inside the valve body 1, the flow cross-sectional area between the valve core 4 and the valve body 1 is changed, thereby achieving the effect of controlling the fluid flow rate and meeting the fluid flow requirements under different working conditions.

[0037] Reference Figure 4 - Figure 6 The sealing assembly includes a retaining ring 14, whose sidewall is fixedly connected to the inside of the valve body 1. A valve seat 15 is slidably connected inside the retaining ring 14. A second sealing ring 19 is provided on the sidewall of the valve seat 15, and the sidewall of the second sealing ring 19 is attached to the sidewall of the valve core 4. A first mounting seat 16 is fixedly connected inside the retaining ring 14. A second spring 17 is provided on the sidewall of the first mounting seat 16. One end of the second spring 17 is fixedly connected to the sidewall of the first mounting seat 16, and the other end of the second spring 17 is fixedly connected to a second mounting seat 18. The second 18 sidewall is fixedly connected to the sidewall of the valve seat 15. The valve body 1 has an outer layer 20 inside, which is made of ceramic matrix composite material to provide the overall mechanical strength and anti-aging performance of the valve. The sidewall of the outer layer 20 has an intermediate layer 21, which is made of chromium material to buffer and disperse stress and prevent the coating from peeling off. The sidewall of the intermediate layer 21 has an inner layer 22, which is made of polytetrafluoroethylene material to contact the medium and play a role in isolation and corrosion prevention.

[0038] By installing a retaining ring 14 inside the valve body 1, the retaining ring 14 provides support and positioning. Multiple sets of second springs 17 are installed inside the retaining ring 14 and connected to the valve seat 15 via a mounting base 18. During equipment operation, these springs can generate corresponding elastic force changes according to actual conditions. When the valve core 4 is closed, the second springs 17 are compressed, generating elastic force. This elastic force is transmitted to the valve seat 15 through the mounting base 18, pushing the valve seat 15 tightly against the valve core 4, ensuring a tight seal between the valve seat 15 and the valve core 4, thus forming a reliable seal and effectively preventing fluid leakage. During long-term use, due to fluid corrosion and the valve core 4... Due to factors such as friction and wear between the valve seat 15 and the valve body 1, gaps may appear on the sealing surfaces. At this time, the second spring 17 will automatically extend or compress according to the change in gap. With the force generated by its own elastic deformation, it will continuously push the valve seat 15 to move through the mounting base 18, so that the valve seat 15 can compensate for the gaps that appear on the sealing surfaces in time, maintain good sealing performance, ensure the stability and reliability of the equipment during long-term operation, reduce equipment failures and maintenance costs caused by sealing problems, and form a protective layer through the cooperation between the outer layer 20, the middle layer 21 and the inner layer 22, which improves the corrosion resistance, oxidation resistance and wear resistance of the valve body 1.

[0039] Working principle: When connecting to the outer pipe 7, the first spring 10 is pressed by moving the sliding block 9, releasing the pressure on the retaining bead 11 and placing it in a loose state. Then, the connecting pipe 5 is inserted into the outer pipe 7, and the sealing ring 13 seals the connection, aligning the retaining bead 11 with the mounting groove 8. The sliding block 9 is then released, and the spring force of the first spring 10 pushes the sliding block 9 to slide, pressing the retaining bead 11 and securing it within the mounting groove 8. During equipment operation... During the process, the opening and closing state of the valve core 4 is adjusted by rotating the handle 3, thereby achieving the effect of controlling the fluid volume. By installing a fixing ring 14 inside the valve body 1 and installing multiple sets of second springs 17 inside it, and connecting them to the valve seat 15 through the mounting base 18, when the valve core 4 is closed, the second spring 17 generates elastic force to push the valve seat 15 tightly against the valve core 4 to form a seal. In long-term use, if gaps appear on the sealing surface due to corrosion, wear, etc., the second spring 17 will automatically extend or compress, pushing the valve seat 15 to move, compensating for the gaps, and maintaining the sealing performance.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A corrosion-resistant fluid control device, comprising a valve body (1), characterized in that: The valve body (1) is provided with a valve cover (2) on its upper surface. The valve cover (2) is threaded with a rotating handle (3). One end of the rotating handle (3) is fixedly connected to a valve core (4). The side wall of the valve core (4) is rotatably connected to the inside of the valve body (1). The side wall of the valve body (1) is provided with a fixing component. The inside of the valve body (1) is provided with a sealing component. The fixing assembly includes a connecting pipe (5), the side wall of which is fixedly connected to the inside of the valve body (1). An installation groove (8) is provided inside the connecting pipe (5). An outer pipe (7) is provided on the side wall of the valve body (1). A fixing block (6) is fixedly connected to the side wall of the outer pipe (7). A sliding block (9) is slidably connected to the side wall of the outer pipe (7). A first spring (10) is provided on the side wall of the outer pipe (7). A retaining bead (11) is slidably connected inside the outer pipe (7). A limiting ring (12) is fixedly connected to the side wall of the outer pipe (7). A sealing ring (13) is provided on the side wall of the limiting ring (12). The side wall of the connecting pipe (5) is slidably connected to the inside of the outer pipe (7). The side wall of the retaining bead (11) is slidably connected to the inside of the installation groove (8).

2. The corrosion-resistant fluid control device according to claim 1, characterized in that: The sealing assembly includes a retaining ring (14), the sidewall of which is fixedly connected to the inside of the valve body (1), and a valve seat (15) is slidably connected inside the retaining ring (14).

3. The corrosion-resistant fluid control device according to claim 1, characterized in that: One end of the first spring (10) is fixedly connected to the side wall of the fixed block (6), and the other end of the first spring (10) is fixedly connected to the side wall of the sliding block (9).

4. The corrosion-resistant fluid control device according to claim 2, characterized in that: The valve seat (15) is provided with a sealing ring 2 (19) on its side wall, and the side wall of the sealing ring 2 (19) is attached to the side wall of the valve core (4).

5. The corrosion-resistant fluid control device according to claim 2, characterized in that: The fixing ring (14) is fixedly connected to the mounting base (16), and the mounting base (16) is provided with a second spring (17) on its side wall.

6. The corrosion-resistant fluid control device according to claim 5, characterized in that: One end of the second spring (17) is fixedly connected to the side wall of the first mounting seat (16), and the other end of the second spring (17) is fixedly connected to the second mounting seat (18). The side wall of the second mounting seat (18) is fixedly connected to the side wall of the valve seat (15).

7. The corrosion-resistant fluid control device according to claim 1, characterized in that: The valve body (1) is provided with an outer layer (20) inside. The outer layer (20) is made of ceramic matrix composite material and is used to provide the overall mechanical strength and anti-aging performance of the valve. The outer layer (20) is provided with an intermediate layer (21) on the side wall. The intermediate layer (21) is made of chromium material and is used to buffer and disperse stress and prevent the coating from peeling off.

8. The corrosion-resistant fluid control device according to claim 7, characterized in that: The intermediate layer (21) has an inner layer (22) on its sidewall. The inner layer (22) is made of polytetrafluoroethylene and is used to contact the medium to isolate and prevent corrosion.

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