Riverside police

For the customs, it doesn't matter where the seized smuggled excavator is parked, as long as it is not lost. It doesn't matter whether Han Yu can use it or not. It doesn't matter if it's worn out. It's second-hand anyway.

In short, Chief Zeng readily agreed to the proposal to park the excavator in the reserve camp.

Han Yu was just thinking about where to find a flatbed truck to pull him back. "Brother Hao" who had always been concerned about this took the initiative to ask Ying to arrange a truck to pull him back.

He knew that Xiaoyu wanted to learn how to use an excavator, so he arranged for an experienced driver from the company to come over and teach him.

While teaching Xiaoyu the excavator, the master carefully inspected the excavator and confirmed that although it was a second-hand excavator, it was very well maintained. The engine and hydraulic system were all original, which is certain. It has not been overhauled, so if you pay attention to maintenance in the future, it will be fine for another ten years.

"Brother Hao" became even more interested. He repeatedly stressed on the phone that "rich water should not flow to outsiders" and entrusted Han Yu with full authority to "keep" the excavator and be sure to take it down when customs handles it.

Han Yu couldn't care about this now, and didn't even have time to learn the excavator with Xiaoyu. He had already spent two days at Changyu Shipbuilding Factory, talking to Boss Wang, Mr. Yang from Boss Wang's shipyard, and Gu from the water plant in the development zone. Engineer, along with his brother-in-law Zhang Jiangkun and other engineering and technical personnel, studied how to build a floating water plant capable of emergency water supply based on a 1,200-ton inland river cargo ship that was almost dismantled.

Water intake and pressurization are not problems. The key is the water production process.

In fact, water production means water purification, and there are no technical problems. It can be said that the existing water purification technology is very mature.

The water plant on the shore, the seawater desalination and purification equipment on the ocean ship, the Guzhou floating water plant on the other side of the river...the technologies used by others can all be used for reference.

The key is that the space of a 1,200-ton inland river cargo ship is too small, and the designed daily water purification capacity of the water plant ship required by the two reserve battalions cannot be less than 100 tons, because once it is refitted and put into use, it is very likely to guarantee It is not just the domestic water for two battalions and 300 officers and soldiers.

After two days of repeated arguments, we finally came up with a plan.

The total investment was 200,000 yuan. Han Yu felt uneasy after thinking about it. He called his friends at the Hydrological Station of the Yangtze River Water Conservancy Commission and asked them to help contact the experts from the Yangtze River Water Conservancy Commission Design Institute. He then sent the design drawings by fax and asked the experts. Help check.

The Design Institute of the Yangtze River Water Conservancy Commission is very professional in this area. The large waterworks ships built by Hanwu Shipyard for the Three Gorges Project were designed by them.

After waiting nervously for nearly half a day, the expert finally got a reply.

The person laughed on the phone and said: "Comrade Xiao Han, from the drawings it seems that your design ideas are very advanced and your requirements for water quality are also very high. Under normal circumstances, propeller propellers are used to mix chemicals, and multi-stage mesh propellers are used to add chlorine. After flocculation, siphon mud discharge, filtration, and sedimentation through a 40-degree inclined tube, and adding chlorine, it should be able to meet drinking water standards. It is necessary to use less mature ultrafiltration technology on the basis of the above process. Processing?”

"Teacher Shi, we are not superfluous, this is how we considered it."

Han Yu looked up at Boss Wang and others who were equally nervous. He held the phone tightly and explained: "What we are modifying is a water plant ship for flood control and emergency water supply. It is not a water plant that collects water and produces water under normal circumstances. Our water The factory ships are either not put into use, and as long as we use the raw water we can obtain, the water quality will definitely be polluted, and the sediment content may even be several times higher than usual."

The expert pondered for a moment and said: "The quality of the raw water is polluted. In this case, further processing is necessary, but the ultrafiltration technology is not very mature. Are you sure?"

"It is not very mature at home, but it is very mature abroad. We overhauled an overseas ship last year, and the water purification device on that ship used ultrafiltration technology."

"Where's the equipment?"

"The equipment is not complicated. We maintained that equipment during the overhaul."

"But your water treatment plant is so small. If you use ultrafiltration technology for secondary processing, can it meet the design requirement of one hundred tons per day?"

"Mr. Shi, we plan to use the purified water produced by the traditional process as domestic water, which is used for bathing and washing clothes. We use the water processed secondary by the ultrafiltration device as drinking water. This should be able to meet the design requirements."

"It's interesting to grade the moisture."

"Teacher Shi, this is our first time to modify a water plant ship. We have no previous experience. Do you think our design is feasible?"

"There is nothing wrong with the water production process, but there are two points that need to be noted."

"What two points?" Han Yu quickly picked up the pen and prepared to take notes.

The expert looked at the drawings, touched the corner of his mouth and said: "First of all, mesh paddle flocculation is to use multi-stage mesh paddles to reduce the agitation speed step by step, so that the water flow and the mesh paddles produce relative flow motion, and the different micro-vortices and The flow wake provides sufficient conditions for flocculation, but it must be noted that the distribution of water flow energy in the mesh paddle will lead to poor uniformity.

Furthermore, the water plant ship is a floating body, which is greatly affected by wind, waves and its own weight. We have to set up so many water tanks, and the water volume in each water tank is different, and will even continue to change during the water production process. This will make it impossible to maintain the same draft on the inner and outer sides of the ship, as well as the bow and stern.

This will not only affect the stability and even safety of the entire ship, but will also cause the motor drive shaft of the water-making equipment to be often in an eccentric state, which will cause mechanical failures in several motors and reducers. Therefore, I suggest that you review the overall layout and The design of counterweight measures will be further demonstrated and optimized. "

Experts will know if there is one as soon as they speak.

Although I had considered isolating so many water tanks before, the amount of water in each water tank was different, which would cause the hull to be unbalanced. Therefore, fixed counterweights were used. I never thought about the motor drive shafts of the water-making equipment. It may be eccentric.

If a few large motors break down, not to mention the flocculation of the mesh paddles, even several water pumps may be down, so how can we produce water?

Han Yu was glad to have consulted an expert and hurriedly said: "Thank you, Teacher Shi, for your valuable advice. We will discuss it further and study it further."

"It's not a valuable opinion, just a little insight. I'm not on site and don't know the conditions of the equipment you plan to use. I can only talk about it on paper. You should study and demonstrate first. If you have any questions, you can call me."

"OK, thanks."

…

Industry specializing in surgery.

It seems that people like me can only do repairs, but they are really not good at design.

Han Yu did not dare to rely on others, so he quickly asked for help from the Engineering Department of COSCO Shipyard and invited several engineers from COSCO to come over to carry out "technical research."

Seven or eight people worked on it until after eight o'clock in the evening, and finally optimized a relatively safe plan based on the original design plan.

Building a floating water plant on a 1,200-ton ship is basically "building a dojo in a snail shell". No one can achieve perfection. It is conceivable that after the modification, one or another failure will definitely occur. It can only be solved by my brother-in-law's emergency repair team.

In fact, this is the reason why I asked my brother-in-law to participate in the design and then participate in the entire modification and construction process.

It is not only the "water plant ship team" that is conducting "technical research", but also the "cooking ship team" and the "emergency power supply team".

Even Zhang Erxiao was studying the menu for the whole battalion officers and soldiers during the rescue mission, including what to eat in the morning, how many dishes for lunch, and what kind of soup for lunch. The meat and vegetables must be matched, the nutrition must be ensured, the funds must not exceed the limit, and efficiency must be emphasized.

My brother-in-law and sister-in-law are also studying what medical equipment and medicines are needed to carry out tasks locally, and what medical equipment and medicines are needed to carry out tasks in other places...

Only the little fish was heartless and regarded the excavator as a big toy and had a great time playing with it.

Han Yu rushed to the gate of the camp from Boss Wang's Shipyard, only to see that he hadn't returned to Bailong Port even after dark, and was still "playing at night" outside the camp!

"Are you addicted to playing? Come down here without even looking at what time it is!"

"I'm not playing, I'm building roads."

Xiaoyu stopped the car, jumped down and pointed behind him proudly: "Xianyugan, don't you think the road in front of our gate should be repaired?"

"Where's Master Huang?"

"gone back."

"Master Huang is back, how dare you drive alone?"

"Dried salted fish, the excavator is not as difficult as you think. Master Huang is right, as long as you can drive and drive a loader, you can get started in half a day. But it is not easy to drive. For example, when you arrive at a construction site, you must first think How to cross ditches, how to construct, anyway, it takes talent to drive this, and I have the talent to drive this!"

"Look how proud you are."

"That's it. It's really simple to just level the ground."

Xiaoyu grinned and pointed to the opposite side of the road along the river that was about to be completed: "Salted Fish Dried, I have thought about it. After building the north section of the road, I will build the south section, all the way to the river embankment. Then on the river bank Build a gentle slope on the other side of the embankment, and then big cars can drive up it."

Han Yu was really envious of him. He could play whenever he wanted without having to worry so much, and he could get a promotion and a salary increase. He couldn't help but asked with a smile: "What next?"

"Then build another slope on the river embankment and build the road to the river beach. Aren't they going to be training in a few days? We can't let them just train and study without working. Then let Zhang Erxiao and Xiao Jiang give them some training. I did a small job and asked them to go to a nearby construction site to pull some yellow sand, gravel and cement, and pour the smooth road into a cement road for me, and then pour a pontoon pier on the river embankment. When it rains in the future, we You don’t have to walk on the muddy road anymore when you get on the barge.”

"This is a big project!"

“With an excavator, it’s very simple.”

"Your excavator is very simple and not tiring. If you let people do small jobs, will they feel tired?"

"Being a soldier means enduring hardship. When I was in the police academy, I often took the trainees out to do voluntary work."

The barge has moved over, and the steel pontoon is just erected on the river beach. The road conditions on the shore are not good, especially when it rains, it will become muddy, which makes it difficult to walk.

Han Yu thought Xiaoyu's idea of ​​building roads was a good one and said with a smile: "The training plan was formulated by the instructors and administrators. You can ask them tomorrow if they can arrange some labor time."