Agriculture Idol

Chapter 171 Water Cycle

"Yeah, the transparent water pipe looks much better." Li Chengxin nodded again and again, "It feels like this, when something goes wrong, it can be seen very intuitively, and it is also easy to repair."

The student in charge of this piece also nodded and said: "I have never thought of using transparent pipes before. Looking at it this way, it feels much more fashionable than white plastic pipes. But it's just fashionable, and theoretically it can't be broken within a few years." Lose."

At the end of the transparent water pipe is a pulley device. The pulley is fixed above the wetland. It looks a little abrupt, but it is an indispensable existence of the water pumping device.

Next, in order to pump the water up, Li Chengxin and the students put the sponge rubber on the polyethylene plastic rope.The length of the rope is 120 cm, tie knots at equidistant places, and then string the sponge rubber.

The device they are making now is called a "rope pump", invented around 1781-1782, the rope pump is a high-efficiency, low-cost pump, the basic design of the pump is a wheel with a circulating rotating rope and Piston sized to match pump tube clearance.

The end of the rope is placed in the water, and by turning a wheel, the rope is threaded through the PVC pipe, and a piston between the knots pushes the water up, and the water is transported up like an elevator.

According to calculations, the quality of the rope pump can even last for 20 years or more.

Li Chengxin listened to the student's explanation, and was taken aback by the big data: "If this device is so powerful, why haven't I seen it?"

In this wind system, what Li Chengxin knows is only the polyethylene plastic rope, which is a water-resistant rope that fishermen also like to use. The seaweed nets used to grow seaweed in his family were also made of plastic ropes.

The student smiled and ignored Li Chengxin. Living in a modern society, there is such a convenient thing as a water plant. What do you need such a primitive rope pump for?
He went directly to thread the rope from the height of the windmill frame into the water pipe, and through the weight of the rope, the students in the wetland pulled out the rope from the water pipe and passed it around the pulley above the wetland.The other end of the rope is wound under the rotor of the windmill, through several pulley blocks that change direction, and finally connected to the rope below.

When a group of people set up the water pumping device, several staff members of the live broadcast team moved the leftover bamboo used to make the gutters, and made a canal at the water outlet under the windmill, which was connected with the gutters before. .In this way, the pumped water can also be refilled into the filter barrel at the front of the heart pool.

At this point, the water circulation device was finally completed, and after some inspection and repair, it was finally the day of trial operation.

In fact, in this seemingly simple narrative, almost a month has passed.During this period, Li Chengxin was also very busy with work, so it was rare to come here once.

During this period, the students of the engineering university carried out a series of time-consuming tasks such as surveying and modeling of the roof area, and then purchased and processed materials.The staff of the live broadcast group have to help make the wetland area connected to the heart pool and build canals, and the workload is no less than that of the students.

Therefore, every time Li Chengxin finds time to come to live broadcast on the top floor, he feels that the place has changed a lot.

Netizens are also very interested in this. Several staff members in charge of the top floor project will update their work progress on Weibo every day. Netizens who have been following up may know more about the details of the project than Li Chengxin. Everyone feels that they are the master of this project. Cloud Overseer.

"So, can this water circulation system really run smoothly as expected?" Li Chengxin asked the live camera, and at the same time released the brake of the windmill.

after awhile……

"Huh, why didn't it move? Is the windmill broken?" Li Chengxin was dumbfounded. After releasing the brake, the windmill didn't move.

Everyone present was silent for a while, but the netizens in the bullet screen kept making noise.

[Engineering University is too watery, the windmill was built in less than a month, so it won't break within a few years? 】

[Not really, the rotor they made was a very strong and simple structure before? 】

[It’s gone, let’s wait for them to fix it first]

"Why is there no wind today?" It wasn't until a student asked this question that everyone realized that the roof was really calm today.

It's already mid-December, and the wind blows continuously every day, so everyone wraps themselves up very thickly.Therefore, the wind suddenly stopped today, and everyone didn't react for a while.

Li Chengxin took out his mobile phone, opened the weather app, and lit it in front of the live broadcast screen.

【puff! 】

[HHHHHHHHHHH! 】

[Wind speed is 0? 】

【Waiting for the wind to come—】

Waited for a while, but never waited for the wind to come.

"Why don't you rotate it manually?" A student suggested.

Li Chengxin nodded and said: "Indeed, now we just need to verify the circulation system. Let's test it by turning it manually first."

Having said that, two students volunteered to put on their seat belts and climbed onto the windmill frame.Without the strong wind blowing from all directions, the safety factor has increased by several levels when climbing the shelf.

The two students sat on the shelf, held the windmill with both hands, and turned it in one direction at the same time.

After turning it around for a while, through the transparent plastic tube, there was indeed water rising up driven by the knot and the sponge rubber.

[The water really went up! 】

【Amazing! 】

[I finally understand this system, it feels like a needle pushes water? 】

The windmill continues to rotate, driving the rope, while the small sponge rubber transports the water in the pipe to the roof.After a while, water was discharged from the T-shaped outlet pipe on the roof, and flowed smoothly into the gutter along the previously built canal, and then returned to the filter barrel.

It was a trickle at first. After hearing that the water circulation was successful, the two students who were manually turning the windmill on the windmill frame also accelerated the movements of their hands to alternately push the windmill blades, and the water flow became stronger.

As the barrel of the filter system, the four-layer filter device takes about 10 minutes to filter the water.During the period, two other students also climbed onto the windmill frame, replaced the previous two students, and continued to turn the windmill.

Soon after, water flowed from the barrel.At first, the water flow was very thin, but as long as the river bed in front of the heart pool is full of water, the two small waterfalls in this pool system can also appear quickly.

After the water flow is formed in this way, the heart pool will not freeze in the cold wind of Lanhai City in winter.

[That's great, it's finally done! 】

[End of flowering! 】

[Can I see fireflies next year? 】

The students present also clapped and cheered.

"It's finally done!"

"Two credits successfully obtained!"

“There are still papers to write!”

　Reference BV1G4411X7xN.The season has entered winter again, and I haven't thought of any special winter activities for the time being. I have written about the New Year Festival, and I will probably write about the entertainment industry next. I feel that the proportion of my writing is very small.

　　
　
(End of this chapter)