A worker in Mudanjiang, Heilongjiang, was riding a balloon to loosen the tower, but it drifted away with the wind! Where will it end up?
Release time：2023-02-07 05:39:38 source：korpimaankyynel.com author：World Geography
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A worker in Mudanjiang, Heilongjiang, was riding a balloon to loosen the tower, but it drifted away with the wind! Where will it end up?
Recently, in Shanshi Town, Hailin City, Mudanjiang, Heilongjiang, a worker had an accident while riding a large hydrogen balloon to hit the pine tower. The hydrogen balloon floated uncontrollably into the distance, and then lost contact with the ground. Judging from the current police report, the worker has not been contacted yet, and the hydrogen balloon does not know where it is heading. Compared with other high-altitude simple observation and working equipment, the hydrogen balloon has the characteristics of good lift-off performance, long stay in the air, low comprehensive cost, and relatively easy operation. Therefore, it has been used in high-altitude earth observation, meteorological observation, extreme It has a very wide range of applications in sports and aerial trajectories. In daily work and life, some large hydrogen balloons are also used in manned high-altitude operations, such as picking fruits from large trees, high-altitude photography, etc., which have the advantages of flexibility and short operation cycle. In the accident, the workers took a large hydrogen balloon to pick the pine cones from the tall pine trees. However, the gas filled inside the hydrogen balloon, hydrogen, has the hidden danger of being flammable and explosive. Therefore, in the later operation of large-scale balloon rides, two methods of hot air balloon and helium balloon were introduced. The three large balloons, hot air balloon, helium balloon and hydrogen balloon, all have very similar structures in terms of composition: for example, the balloon that can hold gas is mainly made of nylon that is highly dense and can withstand extreme temperatures. Material composition; a gondola that can accommodate people to ride on and place various instruments and equipment and other space requirements, and at the same time, the gondola can also play a role of buffering the sphere and people when landing. In addition, some advanced balloons are also equipped with altimeters, thermometers, barometers, speedometers and other instruments. For hot air balloons, there are also burners that provide the necessary hot air for the balloon. For advanced hydrogen balloons, it is also equipped with a device that can adjust the gas pressure inside the balloon, which can timely replenish or release the hydrogen content in the balloon according to needs, so as to promote the rise or fall of the hydrogen balloon. However, no matter what type of large balloon it is, after lift-off, it is very dependent on the surrounding environment, especially the airflow. Even a balloon equipped with corresponding control equipment can only adjust the amount of gas inside the balloon. Lifting and lowering, but unable to change or affect the lateral airflow. That is to say, without the restraint of the ground tow rope, after it lifts off, its position and movement direction in the air will largely change with the movement of the airflow. To control it effectively requires a very professional Skill. Under the influence of sudden, unstable or strong airflow, even a highly professional operator will be powerless and can only try his best to ensure that the height of the balloon is within a reasonable range. Therefore, for ordinary business applications, whether it is a hydrogen balloon or a hot air balloon, some necessary safeguards need to be done before liftoff, such as restraint with a strong rope, so as not to drift away with the wind and become uncontrollable; another example Before liftoff, it is necessary to accurately determine the wind direction and wind force, and to maximize the prediction of changes in the future period, and so on. So, going back to the accident of the flying hydrogen balloons in Mudanjiang, Heilongjiang, as to why such a problem occurred, I believe that there will be accurate investigation results from the relevant parties in the follow-up. The author believes that the following may cause such an accident. One Before the hydrogen balloon lifts off, there are no corresponding restraint measures such as ropes; second, there may be certain misoperations by workers in actual work; third, there is a transient strong airflow disturbance, such as strong winds, etc. , the original safeguard measures did not work; Fourth, if the hydrogen balloon is relatively advanced, there is an inflatable device. Once the inflatable device fails, increasing the amount of inflation uncontrollably may also cause the hydrogen balloon to be uncontrolled. The ground rises and floats away. Since it is floating away rather than falling, the possibility of problems with the balloon of the hydrogen balloon basically does not exist. So, where does this balloon go? In fact, in the past few years in the Northeast, there have been many accidents in which pine nuts were picked by hydrogen balloons and then floated away out of control. These balloons are generally connected to the ground by ropes, or pulled by people, or fixed on the ground. There is also a height-controlling vent zipper on this type of balloon, which can control the amount of gas inside the balloon. I don't know why the worker did not perform the exhaust operation in time after the balloon was freed from the rope. The situation is definitely not optimistic. If the exhaust zipper fails, then when the height of the balloon is not too high, you can also use some tools you carry with you to try to cut a part of the material of the balloon to slow down the rising speed of the balloon, and finally slowly let the balloon rise from the ascent. The air is evolving towards a downward trend, so there may be a chance of survival. Otherwise, the balloon will climb to a height of hundreds of meters in one or two minutes. Even if the balloon can be opened at such a height, after falling, the balloon will It will fall almost in free fall. The higher the balloon, the faster it will fall and the less chance of surviving. If the above operations have not been done, the balloon will rise to a very high altitude in a short period of time, the lift the balloon receives will gradually weaken as the air density decreases, and eventually the balloon will be at a very high altitude , performing an oscillating up and down motion. Because the temperature of the surrounding environment is very low and the air density is very small at this time, the people on the balloon will always face the threat of low temperature and lack of oxygen, and they will definitely not last for long. Therefore, the worker in Mudanjiang, Heilongjiang, has not been contacted for a long time after the incident, and the balloon has not been found. Therefore, in all likelihood, there is a lot of misfortune. We certainly expect a miracle to happen. However, after an event such as a balloon out of control, the optimal rescue time window is only a few minutes. Especially under the action of unstable airflow, the flight direction of the balloon cannot be predicted at all, and it is very difficult to rescue. Therefore, work such as picking pine nuts by hydrogen balloon should be carried out carefully, and multiple safeguard measures should be taken effectively. At the same time, it is necessary for relevant parties to introduce corresponding control measures, strengthen control from the source, and avoid similar accidents to the greatest extent possible. . #Workers take a hydrogen balloon to beat the pine tower and float away#
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