Connecting rust-proof chemical safety valve

Abstract

The utility model discloses a connection rustproof chemical safety valve, and relates to the technical field of safety valves, the connection rustproof chemical safety valve comprises a chemical safety valve, the two ends of the chemical safety valve are both sleeved with liquid storage boxes, the sides, away from each other, of the two liquid storage boxes are provided with annular oil liquid grooves, and the two ends of the chemical safety valve are both slidably sleeved with abutting ring plates; the two abutting ring plates are located on the sides, away from each other, of the two liquid storage boxes correspondingly. Through the arrangement of the chemical safety valve, the liquid storage box, the abutting ring plate, the first cylinder, the second cylinder and the adjusting structure, the volume in a liquid storage cavity can be conveniently reduced through vibration generated by flowing of fluid in a pipeline in the using process; and anti-rust oil in the liquid storage cavity is extruded into a gap between the abutting ring plate and the nut, oxidation and corrosion caused by direct contact with air are avoided, workers do not need to smear the anti-rust oil, and the labor amount of the workers is reduced.

Description

Technical Field

[0001] This utility model relates to the field of safety valve technology, specifically to a chemical safety valve with rust prevention. Background Technology

[0002] A chemical safety valve is a device used to protect equipment and systems in chemical processes from overpressure or overheating. It can automatically regulate, control, and release fluids under excessive pressure or temperature to ensure the safety of equipment and personnel.

[0003] Chemical safety valves operate on a pressure control principle. When the system pressure exceeds a set value, the safety valve opens and, through a regulating device, discharges some fluid from the system, thereby reducing the system pressure. Once the system pressure returns to normal, the safety valve automatically closes, maintaining the system within a safe operating range.

[0004] After prolonged use, the connections of chemical safety valves are prone to corrosion. The current method usually requires workers to apply anti-rust oil to the connections regularly, which increases their workload. Utility Model Content

[0005] The purpose of this invention is to provide a chemical safety valve with rust prevention to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution, including a chemical safety valve, both ends of which are fitted with liquid storage boxes. An annular oil groove is formed on the side of the two liquid storage boxes that are far apart from each other. Both ends of the chemical safety valve are slidably fitted with abutment ring plates. The two abutment ring plates are respectively located on the side of the two liquid storage boxes that are far apart from each other. A first cylinder and a second cylinder are connected to the side of the abutment ring plate that is close to the liquid storage box. The inner diameter of the first cylinder is larger than the outer diameter of the second cylinder. A liquid storage cavity that can change volume is formed between the abutment ring plate, the first cylinder, the second cylinder and the inner wall of the oil groove.

[0007] The side of the abutting ring plate away from the liquid storage box has an outlet hole that communicates with the liquid storage cavity.

[0008] The liquid storage box is equipped with an adjustment structure that can adjust the volume of the liquid storage chamber.

[0009] Preferably, the No. 1 cylinder and the No. 2 cylinder are coaxially arranged, and the inner wall of the oil tank is provided with a No. 1 telescopic groove and a No. 2 telescopic groove that slide with the No. 1 cylinder and the No. 2 cylinder. A spring is provided in the No. 1 telescopic groove, and the two ends of the spring are respectively connected to the end of the No. 1 cylinder and the end inner wall of the No. 1 telescopic groove.

[0010] Preferably, the liquid storage cavity is filled with a sponge and rust-preventive oil.

[0011] Preferably, the adjustment structure includes a piston ring and an adjustment assembly. The piston ring is slidably disposed in the liquid storage chamber. The piston ring can divide the liquid storage chamber into a first chamber and a second chamber arranged to the left and right. The sponge and rust-preventive oil are both filled in the second chamber. The liquid outlet is connected to the second chamber.

[0012] The adjustment component is used to adjust the position of the piston rings within the reservoir.

[0013] Preferably, the adjusting assembly includes a telescopic rod; one end of the telescopic rod slides through the liquid storage box and is connected to the piston ring.

[0014] Preferably, there are multiple telescopic rods, and the multiple telescopic rods are arranged in a ring array around the chemical safety valve. A connecting ring is connected to the end of the multiple telescopic rods away from the piston ring. An adjusting ring is threaded onto the chemical safety valve, and the side of the connecting ring abuts against the side of the adjusting ring.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model, through its chemical safety valve, liquid storage box, abutment ring plate, first cylinder, second cylinder, and adjustment structure, allows the liquid storage chamber to shrink due to vibrations caused by the flow of fluid in the pipeline during use. This squeezes the rust-preventive oil in the liquid storage chamber into the gap between the abutment ring plate and the nut, preventing it from being directly oxidized and corroded by contact with air. This eliminates the need for workers to apply rust-preventive oil, reducing their workload. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the single-end connection end in this utility model;

[0019] Figure 3 This is a partial enlarged cross-sectional view of the connecting end in this utility model.

[0020] In the diagram: 1. Chemical safety valve; 2. Liquid storage box; 3. Abutment ring plate; 4. No. 1 cylinder; 5. No. 2 cylinder; 6. Liquid outlet; 7. Spring; 8. Sponge; 9. Piston ring; 10. Telescopic rod; 11. Connecting ring; 12. Adjusting ring. 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 Figure 1-3 As shown, this embodiment provides a chemical safety valve for rust prevention, including a chemical safety valve 1. Both ends of the chemical safety valve 1 are fitted with liquid storage boxes 2. An annular oil groove is formed on the side of the two liquid storage boxes 2 that is far apart from each other. Both ends of the chemical safety valve 1 are slidably fitted with abutment ring plates 3. The two abutment ring plates 3 are located on the side of the two liquid storage boxes 2 that is far apart from each other. A first cylinder 4 and a second cylinder 5 are connected to the side of the abutment ring plate 3 closest to the liquid storage box 2. The inner diameter of the first cylinder 4 is larger than the outer diameter of the second cylinder 5. The first cylinder 4 and the second cylinder 5 are coaxially arranged. The inner wall of the oil groove has a first telescopic groove and a second telescopic groove that slide and cooperate with the first cylinder 4 and the second cylinder 5. A spring 7 is installed in the first telescopic groove, and the two ends of the spring 7 are connected to the inner wall of the end of the first cylinder 4 and the end of the first telescopic groove, respectively. A liquid storage chamber with variable volume is formed between the inner wall of the abutting ring plate 3, the first cylinder 4, the second cylinder 5, and the oil tank. The liquid storage chamber is filled with sponge 8 and rust-preventive oil. The sponge 8 ensures that the rust-preventive oil can be discharged from the surrounding outlet holes 6, preventing the rust-preventive oil from concentrating in the lower part of the liquid storage chamber due to gravity, while the outlet holes 6 in the upper part cannot discharge the rust-preventive oil. An outlet hole 6 communicating with the liquid storage chamber is opened on the side of the abutting ring plate 3 away from the liquid storage box 2. Before the chemical safety valve 1 is used, a thin film is pasted on the outlet hole 6 on the side of the abutting ring plate 3 to seal the outlet hole 6.

[0023] When connecting the chemical safety valve 1 to the pipeline, the connecting nuts on the pipeline are fitted onto both ends of the sliding safety valve 1. After the nuts are tightened, they abut against the side of the abutment ring plate 3, pushing the abutment ring plate 3. The abutment ring plate 3 drives the first cylinder 4 and the second cylinder 5 to move synchronously, causing the first cylinder 4 and the second cylinder 5 to slide in the first expansion groove and the second expansion groove respectively. This reduces the volume of the liquid storage chamber, and the rust-preventive oil in the liquid storage chamber is squeezed out. The squeezed-out rust-preventive oil enters the gap between the nut and the abutment ring plate 3. In subsequent use, the fluid impact inside the pipeline will cause the entire pipeline and the chemical safety valve 1 to vibrate. The vibration will cause the abutment ring plate 3 to shift. Since the abutment ring plate 3 cannot move to the nut side, it moves away from the nut side, reducing the volume of the liquid storage chamber. The rust-preventive oil in the sponge 8 is squeezed out and discharged from the liquid outlet 6 into the gap between the abutment ring plate 3 and the nut.

[0024] The liquid storage box 2 is equipped with an adjustment structure that can adjust the volume of the liquid storage chamber.

[0025] The adjustment structure includes a piston ring 9 and an adjustment assembly. The piston ring 9 is slidably disposed within the liquid storage chamber, dividing the chamber into two chambers arranged left and right. The sponge 8 and rust-preventive oil are filled in the second chamber, which is connected to the outlet hole 6. The adjustment assembly is used to adjust the position of the piston ring 9 within the liquid storage chamber. The adjustment assembly includes a telescopic rod 10; one end of the telescopic rod 10 slides through the liquid storage box 2 and connects to the piston ring 9. Multiple telescopic rods 10 are arranged in a circular array around the chemical safety valve 1. A connecting ring 11 is connected to the end of each telescopic rod 10 away from the piston ring 9. An adjustment ring 12 is threaded onto the chemical safety valve 1, with the side of the connecting ring 11 abutting against the side of the adjustment ring 12. By rotating the adjustment ring 12, the multiple telescopic rods 10 can move synchronously, ensuring smooth movement of the piston ring 9 and a good sealing effect.

[0026] In actual subsequent use, operators can periodically rotate the adjusting ring 12, changing its position on the connecting pipes on both sides of the chemical safety valve 1. The adjusting ring 12 then pushes the telescopic rod 10 to slide on the liquid storage box 2, with damping between the telescopic rod 10 and the liquid storage box 2. The telescopic rod 10 pushes the piston ring 9 to move within the liquid storage chamber, reducing the volume of the second chamber and facilitating the extrusion of the rust-preventive oil from the sponge 8. This ensures rust prevention at the connection points of the chemical safety valve 1, reducing operator workload; simply rotating the adjusting ring 12 is sufficient, eliminating the need for extensive lubrication of the connection points.

[0027] 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 chemical safety valve with rust prevention connection, characterized in that, The device includes a chemical safety valve (1), both ends of which are fitted with liquid storage boxes (2). An annular oil tank is provided on the side of the two liquid storage boxes (2) that are far apart from each other. Both ends of the chemical safety valve (1) are slidably fitted with abutment ring plates (3). The two abutment ring plates (3) are respectively located on the side of the two liquid storage boxes (2) that are far apart from each other. The side of the abutment ring plate (3) close to the liquid storage box (2) is connected to a first cylinder (4) and a second cylinder (5). The inner diameter of the first cylinder (4) is larger than the outer diameter of the second cylinder (5). A liquid storage cavity that can change volume is formed between the abutment ring plate (3), the first cylinder (4), the second cylinder (5) and the inner wall of the oil tank. The side of the abutting ring plate (3) away from the liquid storage box (2) is provided with a liquid outlet hole (6) that communicates with the liquid storage cavity; The liquid storage box (2) is equipped with an adjustment structure that can adjust the volume of the liquid storage chamber.

2. The chemical safety valve with rust prevention connection according to claim 1, characterized in that, The first cylinder (4) and the second cylinder (5) are coaxially arranged. The inner wall of the oil tank is provided with a first telescopic groove and a second telescopic groove that slide with the first cylinder (4) and the second cylinder (5). A spring (7) is provided in the first telescopic groove. The two ends of the spring (7) are respectively connected to the end of the first cylinder (4) and the inner wall of the end of the first telescopic groove.

3. A chemical safety valve with rust prevention connection according to claim 1, characterized in that, The liquid storage chamber is filled with sponge (8) and rust-preventive oil.

4. A chemical safety valve with rust prevention connection according to claim 1, characterized in that, The adjustment structure includes a piston ring (9) and an adjustment assembly. The piston ring (9) is slidably disposed in the liquid storage chamber. The piston ring (9) can divide the liquid storage chamber into a first chamber and a second chamber arranged on the left and right. The sponge (8) and the rust-preventive oil are both filled in the second chamber. The liquid outlet (6) is connected to the second chamber. The adjustment assembly is used to adjust the position of the piston ring (9) in the reservoir.

5. A chemical safety valve with rust prevention connection according to claim 4, characterized in that, The adjustment assembly includes a telescopic rod (10); one end of the telescopic rod (10) slides through the liquid storage box (2) and is connected to the piston ring (9).

6. A chemical safety valve with rust prevention connection according to claim 5, characterized in that, The telescopic rods (10) are multiple in number and are arranged in a ring array around the chemical safety valve (1). A connecting ring (11) is connected to one end of each telescopic rod (10) away from the piston ring (9). An adjusting ring (12) is threaded onto the chemical safety valve (1). The side of the connecting ring (11) abuts against the side of the adjusting ring (12).

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