"The old high-pressure boiler uses wrought iron pipes. [Read the latest chapter]" A fat man squeezed over, "I have dismantled the antique boiler in our factory, and there is no steel. It is all soft iron. The fire tube inside is made of wrought iron. Made of iron.”
"Who are you?" Wang Luobin was stunned for a moment.
"I'm Xiao Gui, from the machinery factory." The fat man looked helpless. The leader didn't recognize him, which was not a good thing anyway.
"Do you think there's anything wrong with imitation of high-pressure boilers?"
"It's not a big problem. It's just that there are many novices here and few experienced ones, so the work is not very good. In my opinion, we should start with a simple Lancashire boiler and let everyone practice - after all, Master Zhou is also a novice in riveting work, so first Build something with low requirements and it will be less likely to cause accidents." Xiao Gui said very conservatively, but he didn't seem to care at all.
"Okay, let's imitate two Lancashire boilers first, and then build a high-pressure boiler after we get good at it." Wang Luobin said.
Solving the boiler problem is equivalent to solving half of the steam engine problem. The key component of the steam engine is the cylinder, which is a product that tests the level of industrial processing. The cylinder is actually processed by a boring machine, and the quality of the cylinder directly affects the actual output power and safety of the steam engine.
The machinery factory has accumulated considerable experience in using large boring machines by processing artillery barrels in the past. There were no technical difficulties in manufacturing the cylinder this time.
The first steam engine designed and manufactured by Traveler, the "Mozi Type 1", was a horizontal steam engine driven by a Lancashire boiler. The cylinder with a steam jacket was located on a cast iron base, and the chute and base were Cast in one piece and drilled. The crankpin is connected to a suspended crankshaft plate, and the outer end of the crankshaft is supported by an independent bearing. The regulator automatically adjusts the expansion degree according to the load of the machine. There are two eccentric driven main spool valves and expansion valves on the crankshaft. The cylinder diameter is 311mm and the stroke is 56mm. When the steam pressure is 4kg per square centimeter and the rotation is 95 rpm, it can produce 5o horsepower. This level is already comparable to the power of the low-power pot camel machine brought by Chuangzhong - of course, the pot camel machine achieves this with a smaller boiler volume.
If you want to increase the horsepower, just enlarge the diameter of the cylinder and increase the stroke. By expanding the cylinder diameter to 56omm and the stroke to 1ooomm, the output power of a steam engine with the same structure can reach 185 horsepower, which is enough to meet most industrial applications.
The materials used in boilers and steam engines, except for a few parts that are made of low carbon steel, are either pig iron or wrought iron - very suitable for the metallurgical level of the time traveler.
"Actually, there is still a lot of room for improvement." Xiao Gui commented on the design drawing drawn by Xiao Bailang, "For example, using a drop valve to replace the slide valve, or simply using a cylindrical swing valve - this requires better materials and processing levels. Let’s talk about it later——”
"The processing level is no problem. We have so many modern machine tools and professional staff."
Xiao Gui smiled: "No one has done these jobs before, so it's better to be careful. Take it step by step. Boilers and steam engines can kill people if something goes wrong. Everyone has worked in a factory, so don't forget about safety in production. .”
"Yes, casualties can happen at any time if you are not careful in the factory. Today's apprentices are better. Children are more receptive, while adult workers don't pay much attention. They think we are making a fuss out of a molehill - sooner or later, we will get injured at work." Jiang Ye agreed. .
"There is no way, people can't remember the lessons without blood." Zhan Wuya sighed and said, "I won't say more about this. Our policy for production equipment is: proceed step by step, run fast in small steps, and continuously improve. In terms of production technology, we are repeating the old path that our predecessors have taken, and technological improvements are based on evidence and will not make detours."
Starting from equipment with simple technology, we gradually increase the technical content and processing difficulty of the equipment, so that we can quickly climb the technological tree and avoid the risks caused by the Great Leap Forward-style development.
Even very simple and primitive equipment can play an important or even indispensable role at this stage. Things like steam engines play a much greater role than diesel engines at this stage.
Producing boilers and steam engines is a golden finger for the great cause of crossing, the key among the keys. No one dared to neglect. Ma Qianzhu ordered the Planning Commission to unconditionally approve all material and energy applications from the Works and Energy Commission. Wu De also patted his chest and expressed that he would provide as many manpower as needed. Lingao Construction Corporation even organized surprise construction to build factories.
Although there are many different types of factories in the five-year plan, in fact most of them are just workshops in the Bobu Industrial Zone. The layout of the industrial area has been overall planned to make full use of space and centrally arrange various pipelines. Concrete sidewalks and simple tracks for transporting goods are laid between workshops and warehouses.
Of course, this kind of track cannot run trains. It is just two rolled wrought iron bars directly embedded and laid on the concrete floor, and its bearing capacity is not large. Originally, the mechanical team planned to use hardwood tracks. Considering the climate of Lingao - wooden products are easy to decay and damage during the rainy season, forged iron was used - it is cheaper than steel and tougher than tracks cast from pig iron. It was the first choice in the early days. The main material used for railway tracks.
Originally, Zhan Wuya's design of this kind of track was just to imitate the simple transportation method between workshops in his previous life - he worked in the spray painting workshop for a while, and large workpieces were loaded on flatbed trucks and pushed along the track from the previous workshop. Came here. It saves manpower and time, and is highly efficient.
But the train party members who passed through the crowd couldn't help but get excited when they saw the track. After a group of people signed a petition, the executive committee was finally moved, so what was originally a simple track between workshops turned into a complex set of tracks. "Track system".
In the new plan, the length of the track has been greatly increased, and the connection range is also wider: from Bairen City, farms, Dongmen City, to the hydropower station on the Wenlan River, the inland terminal, Bairen Commune, and extends to the factory area. Various workshops, warehouses, and office buildings within. Not only can it transport various equipment, raw materials and goods, but it can also transport people. The track is equipped with a switch and an auxiliary track every certain distance to facilitate vehicles to avoid each other.
In order to grasp the vehicle operating status and facilitate dispatching. A specially built high platform is also built as the main console, and a wired telephone and light control system are installed. In an emergency, a colorful flag visual system can be used or directly connected to the broadcast and controlled by a tweeter.
"Mr. Wen, these are several vehicles we have designed for rail transit." In the vehicle workshop, Li Chiqi, the workshop director, introduced several flatbed trucks parked under the work shed to several key members of the executive committee. As a young man with a background in machinery and automation, he is able to hold such an important position because his major is basically useless and he can spend his time on the tedious administrative work of leadership positions - like Jiang Ye, Zhou Bili, Xiao Gui and others. People with technical skills are too busy just doing technical research, designing, and processing products every day.
Of course, another reason why he serves as the director of the vehicle workshop is that he is a senior model player, especially skilled in fully internal vehicle models - he is the person closest to vehicle manufacturing. Since the birth of the vehicle workshop, it has lived up to expectations. It has modified more than ten handcarts, manufactured and modified the first batch of two-wheeled freight carriages, and recently produced Chuanzhong's first four-wheeled carriage, the "Hongqi" type.
Wen Desi and others looked at several flatbed rail cars under the work shed. They all looked unremarkable, no different from the small flatbed railcars they remembered using in the factory. It's just that the vehicles in front of me are mostly made of wood.
"This is a basic flatbed cargo type." Li Chiqi was wearing a jet-black overalls. He was a fat man with short curly eyes and small eyes. He had not lost weight after arriving in Lingao for so long, but he had become unusually strong.
"The maximum load of this flat-panel type is 5 tons. It has no power and can be driven by manpower, horses or motor vehicles. If it is further improved, it will not be difficult to reach a load of 15 tons."
"EMU traction, what kind of power is it?" Ma Qianzhu became interested. He remembered that the track flat cars used in this kind of train are generally electric. Of course that's not possible here.
"Well, we have several models of high-speed trains. We need to ask the Industrial Energy Commission to evaluate the specific ones we choose." Li Chiqi said, "We have designed a variety of removable modification kits for this basic model, including Tank truck transport type, bulk cargo transport type, long piece transport type, etc., different functions can be achieved by installing different kits."
"This design idea is good." Wen Desi agreed.
Ma Qianzhu was uneasy: "Is there something wrong with the steering rack of the vehicle?"
"There is no problem. This difficulty was overcome when we drove the Hongqi carriage." Li Chiqi was confident. "One of the main problems limiting the vehicle load now is that the actual track load is not accurate."
Wen Desi waved his hand and said, "No problem. Back then, the British used wooden tracks and horses to transport several tons of coal in one car. What's more, our rail transit is still built with concrete and steel materials."
"This is the second model: a self-propelled flatbed truck." The second model introduced by Li Chiqi is exactly the same as the basic cargo type. The difference is that there are four seats at the four corners of the flatbed truck, and there are some chains under the seats. There are wheels and the like, and there are pedals under each seat - obviously it is a human-powered bicycle.
"That's good, but does it have enough driving power for four people on the bike?"
"It's enough. It speeds very quickly when it's empty. We also installed a brake device on it. It's just that it's difficult to start when it's fully loaded." Li Chiqi has already done experiments. After loading more goods, if there is no external force, To help start, the four people in the car cannot step on the pedals no matter what. "It takes about ten people to push together to start. After starting, you can pedal and move."
Do we need to prepare ten people to be the starters? Obviously this kind of vehicle can only be used as a transportation vehicle or to transport light objects! ~!
