"It wasn't until 1844 that there was the first industrial DC generator, which was specially used for electroplating. It wasn't until 1873 that generators and electric motors were connected in series. Before that, generators generated electricity and stored it in batteries.
in, and then drive the motor. As for the excitation method from permanent magnet magnet to current self-excitation, it was a paper written by Siemens in 1867. The modern armature, that is, the drum shape was designed by Adenike of Siemens in 1872. The motor
Compensating windings and laminated cores did not appear until 1885. And the general three-phase synchronous power generation mode did not appear until 1887."
Faraday's "multimedia" demonstration of popular science aroused everyone's interest. Although many of you here know these fragments of knowledge, few people understand it so comprehensively.
"What I say so much is that there is absolutely no need for us to follow the original technology tree all over again. For example, the motor we successfully trial-produced was manufactured according to the drawings we brought, which is the y in the original space-time national standard.
Series three-phase squirrel cage asynchronous motor, this motor series can basically meet the requirements of most of our current workshops for prime movers - you must know that a 10t electric crane requires only 15kw motor."
Then he started to talk about the types, functions and principles of power equipment, and then talked about the general principles of power transmission and distribution. Basically, he taught it in a simple way: the elders here are all engaged in science and engineering, and there is no need for too many details.
You can roughly understand it.
"... Then again, everyone has a misunderstanding that all things related to electricity should be managed by the power department. In fact, this is the case. The electric power industry, as the name suggests, is the same as the mechanical industry. It is the mechanical industry that manufactures machinery, and it is the mechanical industry that manufactures electricity.
It is the electric power industry, that is, the power stations are ours, but making generators is not ours. In fact, making generators is a category of the machinery industry. Let me make a few remarks here. Our machinery industry is addicted to silly things.
A trend that cannot be extricated from crude steampunk culture. We have more than a hundred veterans working as fitters all day long in a few shabby factories at the village and town level. What the hell is this? I think production has matured.
The chain must liberate the elders and invest them in other places that need elders. Let’s build an electric motor that won’t ring every day and the ground won’t work. If we want to find a mechanical elder to help, we’ll just roll our eyes. I’m not like that.
**Earn a fortune for yourself, I am doing it for everyone’s future and tomorrow..."
"Ahem, cough, cough." Qian Liushi heard that something was wrong and quickly coughed as a warning. Faraday gave Qian Liushi a blank, "Okay, if you say too much, you will hurt your feelings. The Executive Committee and the Planning Institute have approved it.
: A project team for the production and development of electrical equipment has been set up. Qian Liushi and I are currently taking the lead. I hope that more professional mechanical colleagues will join this project team to make our electrical equipment bigger and better. As soon as possible
Entering the era of electrification.”
"Okay, that's Faraday's introduction first, let me continue to talk to you." Qian Liushi was afraid that Faraday would make another mistake again, so he quickly cut the topic, "In fact, the Planning Institute has long wanted to use the equipment used in various of our factories.
The prime mover was changed from the original steam engine to an electric motor, but because the silicon steel and various insulation and sealing materials have not been started, these plans are only verbal."
"Now we have to look at the demand first, and then see what we can provide. There are currently a few requirements for electricity. If there are any gaps, you can add them. The most important task at present is to meet the necessary electricity needs of various industrial enterprises.
Projects: electrolysis, electroplating. Especially electrolysis, which consumes a lot of power and has a great impact on the non-ferrous metal industry and chemical industry. We will start to solve this demand first."
After this popular science, the meeting was generally on a regular basis. After discussion, the veterans of the industrial port made a rough plan on the direction of power equipment manufacturing and power development.
The first step is to make silicon steel. At the current level of steel plants, we can only make hot-rolled silicon steel sheets. Then, by constantly testing the hysteresis curves of various colors of silicon steel, we can sort out rough grades for use in power generators and transformers.
After having a stable and reliable supply of silicon steel, build a professional motor workshop: in addition to producing Y-series motors, it can also mass-produce low-speed air-cooled permanent magnet generators below 100kw - this does not require brushes. This kind of generator
It can be driven by a steam engine. If there is a diesel engine in the future, it can also be driven by a diesel engine. It can even be driven by a hydraulic turbine in a small hydropower station. The machine end power is 400v. For the insulation problem of this low-voltage motor, mica sheets and mica paper are more than enough. This series
The generator is relatively light and can be used in combat logistics centers, headquarters or construction sites. The combination of generators and electric motors will greatly improve efficiency compared to steam engines - of course, the premise is that Lingao's industrial system can provide diesel engines and
Required fuel, otherwise the advantages of using gas power will be compromised.
As for power transmission and distribution, the consensus among veterans of the mechanical industry and chemical industry is that there are too many technical difficulties that need to be overcome, and there are also many missing links in the industry. At present, in addition to barely being able to produce various makeshift wires and cables, transformers
, circuit breakers, etc. are difficult to produce. As for electrical secondary equipment such as ammeters, voltmeters, etc., there are difficulties that may be difficult to overcome in a short time. Therefore, it is recommended to mainly use self-provided power stations for expansion. In chemical industries that require a large amount of electricity
, a self-contained power plant is set up in the smelting enterprise. Steam engines are used to drive a large number of low-speed air-cooled permanent magnet generators to generate electricity and consume electricity on site.
The electric power work meeting "came to a successful conclusion". After the meeting, Chang Kaishen hosted a banquet at the fake farm teahouse for "key technical personnel" such as Liu Tom, Faraday and Qian Liushi, and toasted them with a glass of wine for their "hard work and perseverance"
, and also hosted a banquet for Zhong Lishi. In recent years, Faraday and others have been able to make some achievements, and it is indispensable for Dr. Zhong's silent support as the People's Commissar of Science and Technology. Otherwise, this Faraday would have quit his job to work in a steel plant to engage in materials science.
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Dr. Zhong rarely participates in social gatherings between elders, but this time he graciously accepted the invitation. Minister Chang knew that Dr. Zhong would not refuse as long as there was an occasion for good food, so he did not hesitate to spend a lot of money on himself.
circulation coupons. We have prepared a lot of "high-end" dishes for banquets on weekdays.
Although the teahouse is for seniors, the level of the chefs is not that of a red case chef. Wu Nanhai has no intention of using the teahouse as a restaurant, so the naturalized chefs trained by the teahouse are good at snacks, desserts and light meals. Those who really want to entertain
At that time, a chef was transferred from the merchant restaurant to take charge.
The chefs of the merchants and restaurants are personally trained by several veteran "foodies" who are good at eating and cooking. Among them, the cooking method of Nanbao Roast Duck was taught by Zhong Lishi himself. He is good at making various dishes and is very suitable for the taste of the veterans.
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The banquet was held at the podium of the tea house by the window facing the water - the height is low, and it was already warm spring weather in less than March. The long windows were open and the breeze was blowing gently.
The table is full of dishes with Lingao local characteristics: four hot dishes: braised spicy beef eye snails, steamed crabs, smooth-roasted sandworms, belly pork and dried radish; two main dishes: salt and pepper pig's trotters, roasted Nanbao duck,
The vegetables are stir-fried water spinach with minced garlic and boiled taro with green onions. It is also paired with two snacks: fried shrimp and chive pancake with ointment and Lingao pan-fried dumplings.
The wine is rice beer and Leizhou rum made by the farm cooperative, and naturally kvass, the "national drink", is also indispensable.
Even in 1633, when the living standards of the senators had greatly improved, this banquet was still considered "luxury". Especially the rotten pork crisps, slightly medicinal pig's trotters and the belly meat cut into small pieces made everyone present even more excited.
A few secretly swallowed their saliva.
The host and the others exchanged cups and had a great time eating and drinking. During the dinner, Chang Kaishen toasted frequently, and soon everyone was looking slightly drunk.
Dr. Zhong was already a bit drunk and felt that he could not drink anymore, so he talked about the issue of academic journals.
"You did a great job on the electric motor this time!" Zhong Lishi said, "Record the test data this time. Later, everyone will summarize the parts they are responsible for and put them together to create a core."
What Dr. Zhong calls the "core" is the first academic journal in this time and space organized by the Ministry of Science and Technology and published by the Great Library: "Nature and Science". This journal is edited by Zhong Lishi of the Ministry of Science and Technology, and there are also other academic journals in Mechanical Engineering.
People with the highest professional standards in metallurgy, chemistry, electrical materials, precision instruments, and biology serve as editors and reviewers. The journal basically contains the latest work achievements and production results of various industrial departments, focusing on the elders' opinions on "replicating" and "reproducing" modern times under existing conditions.
Industrial exploration and practice.
The publication of Nature and Science magazine has to a certain extent replaced the science and technology section of the internal forum in the past. With the deepening of the first five-year plan, the work of each department gradually separated, and everyone was busy working during the day and doing homework at night.
Become desolate.
Many veterans are no strangers to publishing in core journals. Although writing papers is troublesome, due to the adoption of an active remuneration system-especially the auction of foreign horses, everyone pays more attention to circulation coupons. Therefore, submitting articles is still a priority.
Enthusiastic. This magazine is distributed once a month to every veteran for free. As a supplement to information, professionals can learn about the work of other departments in a timely manner so as to apply the latest technological developments as soon as possible. In addition to senior veterans
In addition to a hand-written volume, a portion of the paper is also printed and provided to large libraries, schools and professional reference rooms of various enterprises for naturalized civilian scientific and technological personnel to read. For this reason, it is clearly stated in the manuscript request that the paper must not contain words such as "old time and space"
Vocabulary, and no mention of the history of old technology is allowed. (To be continued.)