How to defend against storm floods?

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According to the China Meteorological Network, this year, domestically affected by El Niño, the Yangtze River region, Xinjiang, and some parts of Northeast China will experience heavy rainfall in recent days, and there will be serious internal congestion in urban areas. Then what problems do you need to pay attention to in rainstorm prevention? What measures should the citizens take in the face of heavy rain?

In order to play a greater role in preventing and reducing disasters caused by the meteorological department's frequently issued warning information, it is necessary for joint efforts of the warning issuing department and the public.

First of all , when the meteorological department issues early warnings, it must strengthen the interpretation of different levels of early warning so that the public has a clear understanding of the importance of early warning.

On the other hand, the public also needs to increase their awareness of early warning information and enhance their understanding of early warning information. For example, when receiving high-level warnings such as rainstorm orange or red warning, you should cancel or change the current itinerary, choose a safe place, or avoid going out.

Second , after entering the main flood season, citizens must also pay close attention to weather forecasts and strengthen their awareness of self-protection. Citizens should try to avoid playing in dangerous mountains in the near future. In addition, for cities, heavy rainfall will increase the backlog of road vehicles in the morning and evening rush hour. Once torrential rains occur in the morning and evening rush hour, it is difficult for vehicles to retreat from their lengthy traffic jams. At this time, if the driver finds a water phenomenon, he should not continue to wait on the congested road and he should definitely choose to leave the car.

Finally , in times of heavy rain, the public must master certain self-help skills. Lightning strikes are common storm events. They often occur in places with lots of outdoor activities and are not easily taken seriously. However, their destructiveness is enormous . Some 721 rainstorms also killed people. Therefore, it is necessary to have a certain knowledge of lightning protection. When dealing with other dangers such as flash floods, drowning, etc., the public also needs to have the necessary self-help knowledge.

China Rescue Equipment Network summarizes common self-help knowledge as follows:

Lightning Strike

How to avoid outdoor lightning strikes?

1. In the event of a sudden thunderstorm, you can squat down and lower your height. At the same time, bring your feet together to reduce the harm caused by the step voltage.

2. Do not shelter under the big tree.

3. Do not stay on the side of the water ( river, river, lake, sea, pond, canal, etc. ) , depression, and the top of the mountain or building.

4 , do not hold metal objects and call cell phones.

5 , do not touch or near the lightning protection ground wire, water pipe, electrical grounding line.

How to prevent indoor lightning strikes?

1. When thundering, the first thing to do is to close the doors and windows, leave the metal pipes of the household, and the water pipes connected to the roof.

2. Try not to make, receive, or use the phone to access the Internet. You should unplug the power wires, telephone wires, and TV antennas that may be introduced by lightning strikes. The safe and scientific method is to install a lightning arrester on the power line and make a good grounding.

3. Do not use solar water heaters for bathing during thunderstorms.

Surabaya

Heavy rain may cause large areas of flooding and flash floods. In the event of heavy rain, some victims died of drowning in trapped cars. So, how to deal with various drowning situations?

If you do not swim

When there is drowning, you can take self-rescue method if you are not familiar with water: In addition to calling for help, take a supine position and head backwards so that the nose can be exposed to the surface of the water to breathe. Breath should be shallow and inhale deeply. Don't panic at this time. Don't throw your arm up in a fluctuating manner and let your body sink faster.

If trapped in the water inside the car

1 , unlock the seat belt, unlock the door safety lock, immediately fully open the window, calm mood, take a deep breath. When the vehicle enters the water, the water will quickly pour into the car. When the water pressure is very high, people in the car can hardly open the door to escape. It is only possible to open the door when the car is filled with water and the pressure on both sides of the door is equal.

2. If you do not open the window in time, you can break the window glass by breaking the window hammer to allow the water to enter the vehicle as soon as possible and increase the chance of escape. In addition, attention to kicking, holding a key, using a mobile phone, etc. cannot effectively break the glass.

3 , open the door, swim to the side as soon as possible.

If you cramp in an escape

When cramps occur in the water, do not be alarmed. Be calm, stop swimming, and float on the surface. Use different methods according to different parts to help yourself. Put the body into a supine position, hold the toes of the cramp leg in your hand, pull up hard, make the cramp legs straight, use the other leg to step on the water, and draw the water with another hand to help the body float

Shan Hong

Heavy rain may also lead to flash floods. In this case, the following points should be noted:

1,   Stay calm and transfer as soon as possible to higher or higher places.

2,   Do not run in the direction of the Hongdae, but dodge quickly to both sides.

3 ,   Never wading across the river easily.

4,   If you are trapped in the mountains by mountain torrents, you should promptly contact the local authorities or send a distress signal to seek help.

MONEL®

The registered trademark name, Monel, is applied as the prefix name to several corrosion resistant alloys produced by Special Metals Corporation. These alloys are nickel-based and exhibit traits that include high resistance to atmospheric corrosion, salt water, and various acid and alkaline solutions.

Alloys of identical chemical and mechanical properties are available from other manufacturers and offer excellent alternatives to the various Monel® brand alloys.

The corrosion-resistant alloy is widely used in the marine, oil and chemical processing industries.


Monel Availability

Mega Mex supplies Monel 400, K-500 & R-405. Most of these grades are available in the form of plate, sheet, pipe, tubing, fittings, bar, wire and rod.


What are the Characteristics of Monel ?

Good resistance to acids such as hydrofluoric and sulfuric acid
Highly resistant to alkalis
Malleable
Highly corrosion resistant
Stronger than steel

In what Applications are Monel alloys used ?

Pump shafts, oil-well tools, instruments, doctor blades and scrapers, springs, valve trim, fasteners, marine propeller shafts
Marine components
Chemical and hydrocarbon processing equipment
Valves, pumps, shafts, fittings, heat exchangers

Monel Trivia

Monel was discovered by Robert Crooks Stanley who worked for the International Nickel Company in 1901. The new alloy was named in honor of the president of the company, Ambrose Monell.

*Monel® is a registered trademark of Special Metals Corporation group of Companies.

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