Oilfield/oilwell safety rig FALL ARREST SYSTEMS

Theoretical Explanation on Braking Process of High Altitude Fall arresters

 The fall arrester is mainly composed of starting mechanism, transmission mechanism, capture mechanism and buffer mechanism. Crash preventers are mainly safety protection products. Our common seat belts are also safety protection products.

 They also belong to high-altitude anti-falling protection facilities.            

 Fall arresters and safety belt are personal fall protection equipment. Fall arresters and safety belt are used within a certain range. Both of them need a reliable tie point.           

 However, the unnecessary points are quite obvious.The height and range of movement of the fall arresters and seat belt are different, the way of use and the bearing capacity are different, and the requirements of the fastening point are also different.            

 In the process of high-altitude fall arresters operation, if a heavy object suddenly falls, its instantaneous kinetic energy falling distance can reach 50 meters per second, so the performance and quality of its fall arresters capture components are particularly important in the production of fall arresters. According to the analysis of performance force data given by mechanical industry experts, high-quality fall arresters capture components are made to ensure high-altitude fall arresters. Safety and reliability of the falling device when it moves relative distance instantaneously.            

 The kinetic energy consumption during the movement of the safety fall arrester is particularly obvious in the horizontal compression of the brake rope. The tZ value of the safety fall arresters is usually calculated in 0.1 seconds.           
 When the automatic rope is grasped reliably by the self-grabbing mechanism of the fall arresters in the variable speed braking stage of FAQ, after the braking force has reached the falling load, the elastic elongation of the braking rope and the effect of the buffer are caused by the partial kinetic energy of the falling load (the greater the load, the greater the kinetic energy), and the  braking force gradually increases until the maximum value (Fmax = ZQ is generally required).           
 When the kinetic energy of the safety rope of the speed difference fall arresters is consumed after the brake rope is stretched and the buffer rope is stretched, the braking force decreases gradually until it is equal to the falling load and  balances and stops.           

 At the end of braking, F = Q, V3 = Oe in this stage, the safety rope of the crash preventer falls in the state of variable deceleration.When braking force F =  Fmax, the maximum deceleration is j = jmax. Since the braking force decreases gradually, the deceleration also decreases gradually until 0, then the braking force of the safety crash preventer plays a role, and the braking force and deceleration are in accordance with this stage.The simplest linear law changes gradually make the gravity of descent and braking force balance, so as to achieve the effect of speed difference fall arresters braking anti-falling.           

 Since 2012, the fall arresters has experienced a wave of rapid expansion of the domestic brand of fall arresters and gradually fell into the tide of closure.When to carry forward the brand of fall arresters is a matter of great concern to the industry.  

 Although it is difficult to carry forward the brand of crash preventer, China already has the largest number of Internet users.In this huge consumer-dominated market, as a traditional crash preventer industry, there is no other reason to refuse the mobile Internet. What's more, at present, one of the important problems faced by the traditional crash preventer industry is the inadequate transmission of industry information and the fragmentation of industry information management.           

 It is understood that the current fall arresters industry has indeed won a front-line vitality and vitality in the Internet market. Aggregate the strength of the elite of the whole industry, but also create a large online integration market. At present, this has kept up with the pace of the Internet. It also plays an important role in the future development.