Guide rail anti-falling structure for chemical enterprise

Abstract

The utility model discloses a chemical enterprise guide rail anti-falling structure which comprises a guide rail, a pulley, a falling differential mechanism, a hook and a sealing ring. The two ends of the guide rail are fixedly connected to anchor points of fixing pieces on the two sides. The pulley is assembled on the guide rail and can slide on the surface of the guide rail; the falling differential mechanism is connected to the guide rail through a pulley and can slide along the line of the guide rail. The hook is arranged below the falling differential mechanism and used for being connected with an operator or other safety systems. The sealing ring is arranged at the joint of the falling differential mechanism and the hook and used for isolating oil-water mixture or acid gas from invading and controlling internal corrosion of equipment.

Description

A guide rail anti-falling structure for chemical enterprises Technical field

[0001] The utility model relates to a guide rail anti-falling structure for chemical enterprises. Background technique

[0002] In the production and logistics links of chemical enterprises, the material loading and unloading operations of tank trucks are highly dangerous and complex. First of all, the operation environment is often accompanied by various acidic and alkaline chemicals, such as sulfuric acid, hydrochloric acid, etc. These substances are highly corrosive and pose a great threat to equipment and personnel. In addition, the tank truck loading and unloading operations usually require operators to work at heights, and the frequency of climbing up and down is relatively high, significantly increasing the risk of falling accidents. Due to the continuity and dynamic nature of tank truck loading and unloading operations, any mistake or equipment abnormality in any link may trigger major safety accidents. Therefore, extremely high requirements are put forward for the corrosion resistance, reliability and safety of the operation environment and equipment.

[0003] To ensure the safety of personnel operations, chemical enterprises generally equip guide rail anti-falling systems. However, many deficiencies have emerged in the actual application of existing guide rail anti-falling systems. First of all, the guide rail components are常年暴露在野外环境中,受覆冰、风振、雨雪等气候因素影响,容易出现卡涩、锈蚀、变形等问题,从而导致防坠自锁器无法顺畅运行。其次,部分防坠器扣合装置在长时间使用过程中存在扣合不稳定的问题,使用时容易失效,极大地增加了作业人员发生坠落事故的风险。此外,现有系统的耐腐蚀性能不足,难以长期适应化工企业内部的复杂腐蚀性环境,导致设备寿命缩短,维护频率增加。随着使用年限的延长,导轨系统中的材料强度下降、制动部件灵敏度降低等老化问题亦日益突出,进一步削弱了防护效果。

[0004] Especially in acidic and oily environments, the corrosion and embrittlement problems of the components of the guide rail anti-falling system are particularly serious. In an oily environment, acidic additives in the oil or organic acids generated by oxidation will react with the metal surface, forming pitting and rusting phenomena, reducing the strength and toughness of the metal. At the same time, if the oil contains moisture and electrolyte impurities, an electrolyte solution will be formed on the metal surface, promoting an electrochemical corrosion reaction and accelerating the aging of the metal. In addition, solid particles such as dust and sand grains contained in the oil will cause wear on the metal surface, further weakening the structural integrity of the parts. In an acidic environment, hydrogen ions will react with the metal, causing metal atoms to lose electrons and enter the solution, resulting in continuous dissolution of the metal, greatly weakening the durability and reliability of the components. Summary of the invention

[0005] It should be noted that there seems to be some incomplete or unclear expressions in the original text in lines 13. I have tried my best to translate it as accurately as possible based on the context. You may need to check and clarify that part if necessary.The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a guide rail anti-fall structure for chemical enterprises.

[0006] A fall protection structure for a chemical plant guide rail includes: a guide rail, pulleys, a fall differential, hooks, and sealing rings. The guide rail is fixedly connected at both ends to anchor points on two side fixing components. The pulleys are mounted on the guide rail and can slide on its surface. The fall differential is connected to the guide rail via the pulleys and can slide along the guide rail. The hooks are located below the fall differential and are used to connect workers or other safety systems. The sealing rings are located at the connection point between the fall differential and the hooks to prevent the intrusion of oil-water mixtures or acidic gases and to control internal corrosion of the equipment.

[0007] Furthermore, the guide rail is made of duplex stainless steel.

[0008] Furthermore, the pulley surface is covered with a polyurethane coating.

[0009] Furthermore, the hooks are assembled using titanium alloy.

[0010] Furthermore, the sealing ring is made of perfluoropolymer ester adhesive.

[0011] Furthermore, tensioners are also installed on both sides of the guide rail.

[0012] Furthermore, a buffer is provided on one end of the guide rail.

[0013] Beneficial effects: Compared with the prior art, this practical application has the following advantages:

[0014] This utility model, through innovative design, significantly improves the overall safety of fall protection systems in high-altitude work environments in chemical plants. By connecting a fall differential to pulleys, workers can move flexibly along the guide rail, and in the event of a fall risk, the fall differential can lock instantly, effectively preventing personnel from falling and ensuring work safety.

[0015] The system uses duplex stainless steel as the guide rail material, which greatly improves the corrosion resistance and mechanical strength of the guide rail. This allows the system to work stably for a long time in extreme environments such as acidic gases, salt spray, and high humidity, extending its service life and reducing the maintenance frequency and repair costs caused by corrosion.

[0016] The pulley surface is coated with polyurethane, offering excellent wear and corrosion resistance. This design effectively reduces frictional loss between the guide rail and the pulley, ensuring smooth sliding over the long term and preventing system performance degradation due to friction damage, thereby improving the overall durability and reliability of the system.

[0017] The hook is made of titanium alloy, which has high strength and good corrosion resistance. Even in oily, humid or acidic environments, it can maintain excellent mechanical properties and connection stability, further enhancing the overall load-bearing capacity and fatigue resistance of the worker protection system.

[0018] The sealing ring is made of perfluoroelastomer rubber, which can effectively isolate corrosive media such as acidic oil stains, prevent them from penetrating to the connection between the differential and the hook, avoid internal metal corrosion, significantly extend the service life of key components, and maintain long-term sealing performance and system reliability.

[0019] Tensioners are installed on both sides of the guide rail to effectively maintain its tension and prevent it from loosening, deforming, or shifting due to changes in ambient temperature or long-term use. The tensioners further enhance the stability of the guide rail system and the smoothness of pulley operation, improving the overall adaptability and service life of the system. Attached Figure Description

[0020] Figure 1 is a schematic diagram of a guide rail anti-fall structure in a chemical enterprise;

[0021] In the diagram, 1 is the anchor point, 2 is the buffer, 3 is the tensioner, 4 is the pulley, 5 is the guide rail, 6 is the drop differential, and 7 is the sealing ring. Detailed Implementation

[0022] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0023] A fall protection structure for a chemical plant guide rail includes: a guide rail 5, pulleys 4, a fall differential 6, hooks, and sealing rings 7. The guide rail 5 is fixedly connected at both ends to anchor points 1 on both sides of the fixing components. The pulleys 4 are mounted on the guide rail 5 and can slide on its surface. The fall differential 6 is connected to the guide rail 5 via the pulleys 4 and can slide along the guide rail 5. The hooks are located below the fall differential 6 and are used to connect workers or other safety systems. The sealing rings 7 are located at the connection point between the fall differential 6 and the hooks to isolate oil-water mixtures or acidic gases from entering and control internal corrosion of the equipment.

[0024] This structure is designed to meet both safety and durability requirements in high-corrosion, high-humidity, and high-frequency high-altitude working environments. By fixing the guide rail 5 to anchor points 1 at both ends, the overall system stability is ensured. The pulley 4 assembly is mounted on the surface of the guide rail 5, allowing for smooth longitudinal sliding. Together with the fall arrestor 6, it enables the fall protection system for workers to be flexibly adjusted according to the actual working position. The hook is located below the differential and directly connects to the personal protective harness or safety rope. To prevent corrosive media such as acidic oils from penetrating and damaging critical components, a sealing ring 7 is installed at the connection between the hook and the differential, forming an effective barrier and improving the overall corrosion resistance and durability of the system.

[0025] This implementation method can effectively improve the reliability and safety of the fall arrest system in the special working environment of chemical enterprises. Specifically, it provides smooth operational mobility through the cooperation of guide rail 5 and pulley 4; the connection between the differential and the hook is designed with sealing ring 7 to effectively prevent corrosive media from eroding the internal structure and extend the service life of the system; the overall structure is compact, which is convenient for installation and maintenance, reduces maintenance frequency and cost, and improves the safety of workers when working at height.

[0026] In one possible implementation, the guide rail 5 is made of duplex stainless steel.

[0027] As the main load-bearing and sliding support component, the material selection of guide rail 5 is crucial to the overall corrosion resistance and mechanical properties of the system. Using duplex stainless steel (such as 2205 stainless steel), its ferritic and austenitic dual-phase microstructure achieves a balance between high strength and excellent corrosion resistance. Especially in harsh environments containing chloride ions and acidic gases, it effectively resists pitting corrosion, crevice corrosion, and stress corrosion cracking, ensuring the long-term stability and reliability of guide rail 5, preventing deformation or corrosion failure.

[0028] Using duplex stainless steel as the material for guide rail 5 significantly improves the system's adaptability and durability in acidic and alkaline corrosive environments, extends equipment life, and reduces the frequency of maintenance and replacement due to corrosion. At the same time, the high strength of guide rail 5 enhances the overall safety performance of the system and reduces the risk of accidents caused by material fatigue.

[0029] In one possible implementation, the surface of pulley 4 is covered with a polyurethane coating.

[0030] As a crucial component for sliding support and load distribution, pulley 4 requires both high wear resistance and corrosion resistance during sliding. By coating the surface of pulley 4 with a polyurethane coating, its wear resistance can be effectively improved, reducing wear caused by repeated friction. Simultaneously, the polyurethane coating possesses excellent resistance to oil, acids, and alkalis, effectively preventing corrosive media from penetrating the interior of pulley 4, maintaining smooth sliding performance, and avoiding jamming.

[0031] The application of a polyurethane coating to the surface of pulley 4 significantly extends its service life, reduces sliding resistance, and improves sliding smoothness. The coating's oil- and corrosion-resistant properties further enhance the overall reliability and stability of the system in complex environments, reducing maintenance frequency and costs.

[0032] In one possible implementation, the hook is assembled using a titanium alloy material.

[0033] As a crucial load-bearing component directly connecting workers or safety systems, the material properties of the hook have a significant impact on the overall system safety. Using titanium alloy, a material with high strength, high ductility, and excellent corrosion resistance, ensures the hook's stability in high humidity, oily, and acidic environments, preventing hook breakage due to corrosion or material fatigue and guaranteeing worker safety.

[0034] Using titanium alloy hooks effectively improves the reliability and safety margin of the fall arrest system. It can maintain long-term mechanical strength and corrosion resistance in harsh environments, reducing the frequency of replacement and system maintenance costs, and further improving the overall service life and safety.

[0035] In one possible implementation, the sealing ring 7 is made of perfluoroether rubber.

[0036] The sealing ring 7 is located at the connection between the differential and the hook. Its main function is to isolate external corrosive media such as oil-water mixtures and acidic gases, preventing corrosion of the internal structure. It is made of perfluoroelastomer rubber (FFKM), which, due to its excellent high-temperature resistance, strong acid and alkali resistance, and oil resistance, can maintain stable sealing performance for extended periods in extremely corrosive environments. This material has extremely low gas permeability and good durability, effectively blocking corrosion sources.

[0037] By using perfluoroether rubber as the sealing ring material, the sealing reliability of the system in complex acidic and oily environments has been significantly improved, effectively reducing internal corrosion and failure rate, extending the service life of key components, and enhancing the overall safety, stability, and long-term operation capability of the system.

[0038] In one possible implementation, tensioners 3 are also provided on both sides of the guide rail 5.

[0039] Tensioners 3 are located on both sides of the guide rail 5, providing continuous and stable tension to ensure that the guide rail 5 maintains proper straightness and tension during installation and use. The tensioners 3, through an adjustment mechanism, compensate in real time for any loosening or deformation of the guide rail 5 caused by temperature changes, mechanical loads, or long-term use, ensuring smooth sliding of the pulley 4 and preventing jamming, sagging, or misalignment.

[0040] With the addition of tensioner 3, the stability and reliability of the guide rail 5 system are significantly improved. This effectively prevents loosening of the guide rail 5 due to environmental changes or mechanical fatigue, ensuring the fall protection system maintains efficient and reliable operation under various working conditions, further safeguarding the safety of workers operating at heights.

[0041] In one possible implementation, a section of the guide rail 5 is provided with a buffer 2 for the pulley 4 to cushion the impact.

[0042] Instructions for use: When using, first fix both ends of the guide rail 5 to the fixing parts on both sides of the platform, structural frame or support frame through the anchor points 1 to ensure that the guide rail 5 maintains proper tension and straightness. If necessary, apply continuous tension to the guide rail 5 through the tensioner 3 to avoid loosening or deformation caused by changes in ambient temperature or load.

[0043] Before working at height, workers connect to the hook located below the fall differential 6 using a safety belt, rope, or other safety system. The hook is made of titanium alloy, which has high strength and corrosion resistance, and can reliably bear the weight of the worker and the impact load generated during operation. The connection between the hook and the fall differential 6 is equipped with a perfluoroelastomer rubber sealing ring 7 to effectively isolate corrosive media such as acidic gases and oil-water mixtures, prevent internal structure corrosion, and ensure the long-term stability and safety of the connection.

[0044] The fall differential 6 is connected to the guide rail 5 via a pulley assembly 4. The outer surface of the pulley 4 is covered with a polyurethane coating, which has excellent wear resistance and corrosion resistance, ensuring low friction and wear during sliding on the surface of the guide rail 5. It can also resist chemical corrosion in acidic and alkaline environments, maintaining smooth operation over a long period of time. When the operator moves, the pulley 4 slides along the guide rail 5 with the fall differential 6, allowing the operator to move flexibly within the work area, while the system remains in fall protection mode.

[0045] Throughout the entire operation, in the event of a sudden fall, the fall differential 6 can respond quickly, locking instantly and braking promptly through the guide rail 5 support system to prevent personnel from falling to the ground, greatly improving the safety level of high-altitude operations. Furthermore, the entire system is constructed from corrosion-resistant and high-strength materials, such as duplex stainless steel guide rails 5, titanium alloy hooks, and polyurethane pulleys 4, ensuring long-term reliability and safety in highly corrosive, high-humidity, and oily environments.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 fall-prevention structure for guide rails in chemical plants, characterized in that, include: The system includes a guide rail, pulleys, a drop differential, a hook, and a sealing ring. The guide rail is fixedly connected at both ends to anchor points on both sides of the fixed components. The pulleys are mounted on the guide rail and can slide on its surface. The drop differential is connected to the guide rail via the pulleys and can slide along the guide rail's line. The hook is located below the drop differential and is used to connect the operator or other safety systems. The sealing ring is located at the connection point between the drop differential and the hook to prevent the intrusion of oil-water mixtures or acidic gases, controlling internal corrosion of the equipment.

2. The anti-fall structure for guide rails in chemical plants according to claim 1, characterized in that, The guide rail is made of duplex stainless steel.

3. The anti-fall structure for guide rails in chemical plants according to claim 1, characterized in that, The pulley surface is covered with a polyurethane coating.

4. The chemical industrial plant guide rail fall protection structure according to claim 1, characterized by, The hooks are assembled using titanium alloy.

5. The anti-fall structure for guide rails in chemical plants according to claim 1, characterized in that, The sealing ring is made of perfluoropolymer ester adhesive.

6. The chemical industrial plant guide rail fall protection structure according to claim 1, characterized by, Tensioners are also installed on both sides of the guide rail.

7. The anti-fall structure for guide rails in chemical plants according to claim 1, characterized in that, A buffer is provided on one end of the guide rail.

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