The pot camel machine used to generate electricity was originally intended to be installed in the main urban area, but it was heavily polluted, soot was flying, the noise was very loud, and the boiler needed a lot of water, so Zuihou was still installed in the hydropower area. In order to prevent floods, the foundations of thermal power stations, distribution rooms, and substations in the hydropower area have been specially raised.

Although the pot camel machine has many benefits for the crossers, it also needs a considerable amount of fuel every day, not to mention that the boiler needs soft water. Transporting distilled water to machines from a ship is too much of a luxury. If rainwater is best used for natural water, the river water can be improvised, but it is better to soften it, and Luo Duo said that he can make tannin gum to soften the water, but there is no place to find raw materials for him for a while. Based on his experience in the countryside, Wang Luobin said that boiled water can be used instead.

It is a bit funny to boil water for this behemoth, and many stoves have been dug in rows on the river beach, and the pots brought on the boat have been unloaded to boil water, and the flames are blazing, and the steam is filled, which is extremely spectacular for a while. The traversers threw themselves into the work of cutting grass and trees, and all kinds of firewood were piled up like hills.

"Weishenme doesn't use diesel generators?" Wen Desi was not excited to see such a spectacular scene, in his opinion, this is simply a waste of time and manpower, it is true that the pot camel machine can not use oil, but the manpower consumed in this way is not economical at all.

The operation of the high-horsepower pot camel machine needs to harden the ground - not only the foundation of the pot camel machine, but also the whole urban area must carry out ground hardening work, especially the simple house residential area and the streets of the urban area to be built.

There were no bricks in the hands of the traversers, but it was very convenient to make concrete, and the cement and steel bars were transported by ship, and the stones were as many as they were in Bairentan, which was historically a quarry in Lingao, and the stones were not only used in the county, but also sold to neighboring counties. The stonemasons fled when they arrived, and many of the stones they had mined and polished remained, and there was still a lot of crushed stone left over from the quarry - there was river sand on the river beach, which could be sifted and used. Cement and mixers were brought from Bopu. Wood formwork is also required to make concrete. Wu Kuangming set up an electric sawmill in Bopu, which could easily produce wood of various sizes, and soon the wooden formwork was ready and transported.

After completing the ground hardening of the pot camel power station, the construction team simply started the hydropower project in one go, after all, it is not a matter of boiling water to feed the boiler every day. And with the relocation of the Executive Committee's offices, residential areas and the establishment of new industrial areas, electricity consumption will soon increase dramatically. At that time, this little power will not be enough.

The energy team took the Bairentan Hydropower Station as its key project in the energy planning and prepared a full set of design drawings for the power station, but after a meeting and consultation with the construction team, everyone agreed that the construction was not enough to be carried out according to this plan.

The Bairentan Hydropower Station, which started construction after the Spring Festival in 1967 and was completed at the end of 1968, has a barrage length of 94 meters and a height of 7.5 meters, as well as supporting gates. , Handong, channel, aqueduct, water pipe...... Even in the 20th century, Lingao was a major project that was completed with the efforts of the whole county, starting from more than 300 cadres and more than 100 hydropower engineering personnel, to the county to recruit and transfer hundreds of migrant workers, and specially mobilized more than 200 fishermen women who could carry heavy burdens from the three communes of Touzui, Huanglong, and Kunshe. Only 64,000 man-days of labor were invested, 51,800 cubic meters of earthwork were completed, 5,110 cubic meters of masonry were completed, and 630 cubic meters of concrete were poured......

These numbers were astronomical for the traversal, so the entire set of drawings had to be stored temporarily, and Zuihou decided to adopt a simple channel diversion power station. Install a 200KW generator.

The design plan was to first excavate an aqueduct upstream of the nine-stage waterfall in Bairentan. The width and depth of the aqueduct are calculated based on the flow and slope of the water, but fortunately these are available in a data table, and Zuihou determined that the size of the aqueduct is 1.5 meters wide at the base and 1 meter deep.

The aqueduct injects water into the pre-pressure pool, which is connected to the aqueduct and the pressure pipe. It consists of a front room, a trash rack, a gate, an inlet chamber, an overflow channel and a sand outlet.

The pre-pressure tank is an important part of the hydropower station, which is not only used to settle sediment and intercept drifting debris to avoid damage caused by entering the turbine, but also to distribute water when there are multiple units. In addition, its primary function is to regulate the amount of water entering the turbine.

When the load of the hydropower station increases and the flow rate required by the turbine increases, the reservoir in the front room can supplement the insufficient water from the channel, so as to avoid the water level dropping and causing air to be drawn into the pressure water pipe and reduce the output of the unit; Conversely, when the load is suddenly reduced, or when there is too much water coming from the upstream and causing flooding, the excess flow in the channel can be discharged through the overflow channel so as not to affect the safety of the building.

The sluice gate of the canal is used to control the flow and intercept the water, and it is installed in the water supply chamber of the pre-pressure tank, because it is a small hydropower station, this gate was decided to be made of wood. According to what he has seen and heard in the countryside, Wang Luobin recommended the use of a popular wooden arc gate during the * period, which uses a pulley block and a hand-cranked wooden winch when it is opened, and closes by gravity moment, with simple structure, quick opening and closing, and extremely convenient to use.

The pressure water pipe is a major problem encountered by builders, as an important part of the hydropower station used to cause the pressure head to drive the turbine to do work, it must not only bear the pressure of the water head, but also bear the water hammer pressure caused by the sudden stop of the water flow in the pressure water pipe when the guide vane or gate of the turbine is closed. Therefore, the pressure water pipe should have greater strength, otherwise it is easy to cause pipe cracking accidents.

In modern times, small and medium-sized hydropower stations generally use steel pipes or reinforced concrete pipes, large-diameter steel pipes they naturally do not have, the manufacture of reinforced concrete pipes is not a problem, but the consumption of reinforced cement is too large, and there is no ability to produce cement and steel bars at present, and there are too many places to be used soon. So someone proposed to use a pottery pipe, but the tensile strength of the pottery pipe is poor, and it will break under 10 meters of water pressure, so it can only be used on a small water head power station, and no one has ever made such a large ceramic piece, and I am afraid that no one will fire it in Lingao - and so far the travelers have not found a pottery kiln - not even a brick kiln.

Wang Luobin thought twice and proposed to use woodwinds. This kind of wooden pipe is spliced with 4~6 cm thick wooden sheets, tightened with iron hoops, its strength is better than that of concrete pipes, and it can be used at a head height below 100 meters, compared to concrete pipes that can only be used for water heads below 50 meters. The life of woodpipe maintenance is not inferior, and it is useless for 10~20 years.

The problem of wood is relatively easy to solve, these days the logging work has not stopped for a day, although there is a lack of drying equipment, Wu Kuangming also built an earthen kiln, with branches and leaves slow smoking method to dry wood, this method is very inefficient, the degree of drying is not consistent, but it can finally provide enough usable wood.

The problem is that it is not easy to splice pipes with wooden planks, it is a bit like a hoop barrel, and this craft is about to be lost, let alone make such large-diameter wooden pipes. After several unsuccessful attempts, someone in zuihou used CAD modeling to break down the standard dimensions of each piece of splicing lumber. The timber team couldn't help but laugh when they looked at the millennium precision of each piece of material and the detailed angles of the machining drawings – I don't have a CNC sawmill here.

But with numbers, there is a direction for groping. According to the data of the drawings, after several days of exploration, the first pipe was finally spliced, 4 meters long, 0.7 meters in diameter, and the external iron hoop was tightened. Immediately after Shiyan was qualified, the sawmill produced 32 meters of pressurized woodpipes, of which 12 meters were spare. This backup turned out to be necessary, and 2 were scrapped during the construction phase. The interface between the pipes is connected and sealed with cement mortar. The buttresses and town piers between the pressure pipes are built with cement mortar.

The bottom of the pressure pipe is the power plant plant, and its base requirements are relatively high, so the crushed stone mortar concrete is used at no cost, and some of the stone strips of various sizes are used in the quarry.

Although Mei and his construction team had never built a hydropower plant before, the plant equipment designed for rural areas had detailed and easy-to-understand instructions. A group of experienced engineers studied carefully, and each of them had their own memories of the hydropower stations they had witnessed, so it was not difficult to figure out how to build them. Excavating earthworks, ditches, building factories, and even erecting poles are all easy to navigate. The aqueduct is an earthen canal, and the other buildings are made of cement mortar.

Excavation in some stony areas is more laborious, but with tools such as air compressors and air picks, it is relatively easy to overcome. Originally, the executive committee also allocated some nitrate ammonia and kerosene to prepare for the construction with ZHA medicine when necessary, but Mei Wan considered it better to use less of this kind of mass killing weapon - none of them had engineering experience in using ZHA medicine.

Wang Luobin, who has lived and worked in rural Guangxi for many years, knows a lot about this kind of rural small hydropower and other agricultural and livelihood buildings, and he is basically responsible for coordinating the latest projects. He got closer and saw that the main personnel of the construction team and the subordinate engineering team were there, one was Mei Wan, the team leader, and the other he had a little impression, that is, Zhuo Tianmin, who proposed to build a simple road first when the highway was being built.