Lin Gao Qiming

Chapter 74 Water and Electricity ([-])

He didn't have a particularly deep impression on Zhuo Tianmin. He remembered that he had a son who once went to the Executive Committee to find Xiao Zishan, asking him to approve a note and give Wu Nanhai an egg for him—for his son—eggs are the most in demand right now. There are only three or four of them every day, and they are generally only available to patients.

At the age of 35, wearing a training uniform covered in stone powder and mud, he pointed to the newly built pressure pool, without looking at anyone, and said: "...According to the design drawings: the bottom plate of the water inlet chamber is bigger than before. The floor of the chamber should be higher. Now it is made the same height."

People from the engineering team surrounded him without making a sound.Mei Wan was a little impatient: "It's just a few centimeters high and low, what's the big deal, if you cut out the design drawings for everything, it's a tofu project."

"It's a matter of lack of materials and alternative measures, there is no way out," Zhuo Tianmin was furious when he heard him say that, "The cement, stones and yellow sand in this pressure pool are all used, why not follow the blueprint Do?"

"The people in the engineering team didn't understand the blueprints and didn't pay attention..." Bingfeng tried to smooth things over.

"This is even more unreasonable. The workers are all novice workers, not professional workers. They are not responsible. That's right. We all have a background in engineering and construction. How dare you talk about such a low-level mistake?" People around were whispering. up.

Several professionals blushed, and Mei Wan couldn't refute him, so she could only say, "Then what do you say?"

"It was smashed and redone according to the size of the drawing."

"Not only is this a waste of materials, but it also delays the construction period!" Mei Wan almost jumped up, "Besides, you are not a hydropower professional. Do you know why the pool has to be made before and after? Doesn't the thing on the drawing not necessarily mean it? There are so many things like this.”

"I really don't know, but because we don't understand, we can't be vague about the drawings."

At this time, someone found Wang Luobin and said, "Commissioner Wang is here!"

Zhuo Tianmin heard that Wang Luobin was coming, turned around and saw that Wang Luobin was indeed standing in the crowd, he nodded politely to Wang Luobin, and stopped talking.

"Zhuo Gong, keep talking."

"I've said everything I want to say, and I really don't understand hydropower construction. Committee member Wang, you can decide." Zhuo Tianmin said coldly.He wanted to see how high the members of the executive committee were.All eyes were on Wang Luobin.

Wang Luobin walked around the pool, and measured the depth of each part with a ruler.After the inspection, he asked Zhuo Tianmin for advice and said, "Zhuo Gong, what do you think should be done?"

Zhuo Tianmin said: "If the construction is not carried out according to the drawings, the quality will be unqualified. It's okay to fool around. I'm afraid there will be problems in the future."

Wang Luobin turned around and asked Mei Wan, "What do you think?"

Mei Wan thought for a while and said, "It's true that there is a discrepancy with the drawings, but now there are few materials and we have to meet the deadline. I think it can be used! I will change it later when I have the conditions."

This proposal was approved by some members of the construction team.

Wang Luobin nodded and said, "If we rework, some cement and steel bars will be wasted, and the time for power generation and grid connection will be delayed, but this matter cannot be left alone."

He pointed to the pool: "The width and depth of the pressure forebay are larger than the channel, so that the water flow will slow down after entering the forebay, so that the sediment in the water will settle down. This is the first step, the water inlet chamber It is higher than the bottom of the front chamber to prevent the sediment that has settled from rushing into the penstock to ensure the safe operation of the turbine.”

Mei Wan knew that he had misunderstood the meaning of the Executive Committee on this matter. His experience in building roads made him think that the Executive Committee mainly focused on the speed of the project, so this time he insisted on the priority of progress.Everyone in the construction team looked at him with big eyes and small eyes, and waved their hands angrily:

"Don't look at it, smash all the problematic places, and rework!"

The construction team jumped out of the pool and beat the place to be reworked with an eight-pound hammer. The concrete blocks fell off and fell off. The resources were just sent out, and it has been almost a week now. Although there are radio contacts every day, the resource exploration situation has not been reported yet...

Zhuo Tianmin stood aside and watched Wang Luobin, as if he just met Wang Luobin today.Usually his impression of these executive committee members is that they are kind and tactful. Xiao Zishan is a typical example. He will never say a word that makes you unhappy, but you can't tell his attitude towards a certain matter, even if he wants to be in some disputes. As a decision-maker, he will also use a set of rhetoric to make everyone feel that they don't hurt face-he admires such people, but at the same time looks down on them, thinking that this is a means of survival for people who have no expertise.

He didn't know that he had become Mei Wan's taboo after several speeches in the construction engineering team, but he didn't care at all—didn't he bring his son here just to leave that hypocritical and empty living environment?If he wants to continue doing that in another time and space, then why should he come?

The wind was very strong, and the trees with soft branches shook vigorously. The vegetation here in Bairentan was better maintained than in other places. The forests on the nearby continuous low hills were dense, and waves of trees came with the wind.The wind suddenly became stronger, and the weather became gloomy, and it looked like it was going to rain.After the part of the rework was smashed, Mei Wan immediately reorganized her forces and personally led the engineering team to rush to repair, and the pouring of concrete had to be completed before the rain fell.Wang Luobin was also helping to clean up the debris at the construction site. He was thinking while doing it. Just as Mr. Wen talked with him in private, things in the group were not as simple as imagined. Judging from the way he organized and arranged the construction these days, There has clearly been a crack within the building group.

Immediately after re-pouring the concrete, the installation of the turbines began.The installation requirements of the water turbine are relatively high. To measure the level, it is best to hoist it in place at one time. Mei Wan transferred the steam crane. After an afternoon of tossing, the water turbine was finally hoisted in place.Because there are no bricks and tiles available in the generator room, a shed was temporarily built as a cover.

The engineering team braved the drizzle to clean up the gravel and garbage on the construction site, installed the gate of the diversion channel, and finally completely dug up the earth and rocks at the water intake.The curved wooden gate has played its role, and the water has not poured in. Now the concrete is completely dry to generate electricity.

This small hydropower station with a water head of 20 meters and a water flow of two cubic meters per second can provide 200KW of electricity for the base.The future long-term plan is to reach 5KW generating power of 1000 generating units.

Because there will be two generators generating power at the same time, the original simple power supply mode will be changed.Chang Kane plans to build a new grid system.The system is purchased as a complete set. The power grid will use 110 kV high-voltage power transmission, and the electricity will use 380 volts for industry and 220 volts for civilian use. These are all ready-made voltage standards in this time and space, and they are also in line with the various mechanical equipment they bring. electricity demand.

Mei Wan originally planned to install the power transmission lines of the power grid underground for safety reasons, but there is no suitable corrosion-resistant cable casing, so the overhead transmission of power poles is continued. Fortunately, the total length of the line from the hydropower area to the main urban area is only 100 meters , completely within sight.If necessary, a city wall can be used to connect the two areas, but this is not necessary for the time being.

With electricity, the next project is the water supply system.The water quality of the Wenlan River is mainly polluted by waste water from residential areas and farmland in upstream counties, so the content of organic matter is relatively high, there are many algae, and the sediment content is very small.For such water quality, it is not enough to rely solely on traditional sedimentation and disinfection methods. Algae will bring unpleasant odors, which cannot even cover up the smell of chlorine gas. The water quality of the factory is completely qualified in terms of physical and chemical standards, but the odor cannot be eliminated.

As a professional in water supply and drainage, Tian Jiujiu decided to adopt the infiltration water intake after checking the hydrological topography - the river water enters the reservoir through the infiltration of the riverside soil. The water taken in this form is usually Free from contamination and doesn't require much handling.

The simplest model is to dig a percolation well.However, Tian Jiujiu considered that there is a large number of people to be supplied, and the living habits of modern people also consume a lot of water.Therefore, a more complicated infiltration corridor water supply system is adopted.

First of all, excavate a water collection ditch parallel to the river bank at a place 15 meters along the river. The excavation depth of the water collection ditch should be 1 meter below the lowest water level line. The pipe ditch is made of multiple layers of sand, gravel and The filter bed is composed of small crushed stones, and the water collection pipe is buried in the middle of the filter bed. In modern times, this kind of pipe generally uses perforated PVC plastic pipes with a diameter of 50-100mm. Tian Jiujiu does not have such PVC plastic pipes, so concrete pipes are used. , using a 200mm circular log as the inner mold, mixed with gravel, spun yarn and cement, and cast it on site.This kind of pipeline does not need to be too dense, but loose and porous, and the joints of the pipeline do not need to be sealed—so that the groundwater entering the gutter can penetrate into the pipeline.The entire pipe trench shall be covered with soil with a thickness of not less than 30mm.

Finally, at the northern end of the pipe ditch, at the lowest point of the terrain, a clean water well was built with concrete mortar masonry, and the clean water infiltrated into the water collection pipe was finally flowed here for sedimentation.The building engineering team made a reinforced concrete cover for the well.The clear water after sedimentation is pumped into the elevated water tower with a pump.The base of the water tower is built with stones and cement mortar, and a ten-ton water tank removed from the ship is installed on it. The outside of the water tank is coated with a layer of cement mortar for waterproof and antirust.An ozone generator is installed outside the water tower.This device uses high frequency electronics to generate ozone for sterilization.The sterilizing effect of ozone is not worse than that of chlorine, and it does not require complicated electrolysis devices and pipelines, and it is not very harmful to the human body.Before the electrolytic salt device was launched, this thing could last for a long time.

In order to prevent typhoons, the entire high-tower water tank is firmly slanted on the ground with thick marine cables.The main water pipeline leading to the main urban area is made of PVC. Because the large-scale underground municipal culvert project of the construction team has not yet started, this water pipeline is temporarily buried in a shallow ditch.

(End of this chapter)