How to deal with "Traveling" | Science Pavilion

You have tried

Do you go to the toilet in an environment of 120 kilometers per hour?

What about 300 kilometers per hour?

What about 900 kilometers per hour?

You may have tried it,

They are green trains, high -speed rail and aircraft.

From this city to that city,

The time on the journey always accompanies us for a long time,

In fact, different means of transportation not only has different speeds, but

The feeling of bringing the journey is even more different,

Especially the toilet experience makes travelers impressed.

Have you ever thought about this problem:

How to deal with different means of transportation?

Next, let's find out.

Green Leather Cars: Plasma flying with the rail

Traditional train

Sometimes I can see the traditional train and toilet of the railway through the holes

The traditional old train, such as the Pu Express train beginning with some K -shaped, uses a direct toilet. Due to previous costs and technical restrictions, the train is not collected. When passengers go to the toilet by train, the toilet is also "a thousand miles".

Excrete spraying down

The urine and sewage on the train are directly discharged on the rails, but because the train speed is fast, various excrement (including toilet paper, etc.) will be crushed and decomposed by rapid air flow during the discharge process, and will not be on the rails. Packing up. Even if some remaining wastes are not broken down, railway staff along the line will be manually clean up.

Praise them for hard work! Intersection

Because the excrement is directly discharged to the rails, when the train arrives at the site or enters the city, when the speed is reduced, the toilet will be locked by the trainer and prohibit people from going to the toilet. The reason why you can guess ...

Disable logo on traditional trains

This simple and rude design and maintenance and low cost have become the mainstream of train toilet design.

However, with the development of science and technology, people gradually realize that this treatment method will not only cause environmental pollution and disease dissemination, but also corrode the railroad rail and reduce the service life of the railway. Therefore, the direct -discharge toilet design is gradually eliminated.

The new type of ordinary train no longer discharges excretion on both sides of the railway, but uses a set of toilets. The toilet and the toilet are directly connected. When the train arrives at the destination, there will be a stool car to deal with the box.

High -speed rail: Comprehensive vacuum set toilet

High -speed rail toilet configuration

In today's high -speed railway era, the toilet bid farewell to the mess, the environment and services have risen straight, and the toilet's stool is more advanced, which has achieved a more powerful and hygienic vacuum set toilet design.

Vacuum pumping principle diagram, number "60" is a pollution collector

This design uses a small amount of water+pressure difference to draw the excrement away, and adds a delayed water flushing function. The dirty workers are concentrated in absorbing.

Railway staff will connect the sinus pipe and the sewage tank

After the vehicle arrives, the stay time is usually short, the staining work is always very urgent, and the discharge port is often blocked by a foreign body, causing the containment work to not be completed smoothly. Do not throw a sanitary napkin, beverage bottles or other waste into the toilet.

When I look up at the plane:

Are you inhaling feces?

After speaking of land transportation, let's take a look at the "flying" that shuttles at high altitudes every day.

Remember the news of residents who often picked up the sky in a certain place? At that time, people who did not know at the time thought that this was the "meteorite" from outer space, but the facts were that these ice cubes were "shit" scattered by planes.

The toilet design ideas of traditional fighters and passenger planes are exactly the same as the direct discharge toilets of the train. They are connected to the outside and directly discharge.

Due to the low temperature and low temperature and low pressure, the discharged aircraft dirt will be condensed into ice cubes. If the environmental temperature of the fall is also low, the residents can indeed see the true appearance of these ultra -high -altitude parabolic.

Of course, after a long improvement, now everyone does not need to worry about whether the plane passing over the head of their head is emitting feces.

Modern civil aviation aircraft no longer use these direct toilets, but use vacuum toilets and centralized treatment methods similar to high -speed rail vehicles. At the same time, in order to avoid the spread of sewage smells in the closed cabin space, the aircraft will carry foot on the aircraft. Blue deodorizing solution.

But this liquid occasionally leaks, so sometimes you still see these "face value" higher blue high -altitude pendants.

Blue ice condensed outside the plane

On the plane, when the passenger is "convenient", press the button, and a small amount of "water" will flow out of the toilet wall.

Source: BTV documentary

The polymer material on the inner wall of the toilet is similar to the polytrafluoroethylene on the surface of the "non -stick" surface, which ensures that the dirt can be easily washed away. At the same time, the pressure difference between the vacuum environment and the atmosphere generated by the vacuum pump will sewage The dirt was pumped into the "manure" carried by the aircraft.

Source: BTV documentary

After the aircraft arrives on the ground, there will be professional sewage vehicles in the ground service department to collect and deal with sewage dirt.

The ground operator connects a long tube on the drainage vehicle with the exit of the "manure" of the aircraft. After opening the insurance switch, the sewage and dirt in the aircraft will flow along the tube to the sewage vehicle.

The changes in society and the progress of science and technology have gradually upgraded our toilet experience. The vacuum collection technology is both environmentally friendly and hygienic, but also improves the happiness of passengers to the toilet.

Creation: New Media Team of China Science and Technology Museum

Review: Special experts invited by Xinziming New Media Team ~

- END -