Diagram of the principle of the counterattack and impact type of water turbine classification
1. ** Principle of impulse turbine ** - The runner of a Pelton turbine rotated due to the impact of the water current. During the working process, the pressure of the water flow did not change, and the main thing was the conversion of kinetic energy. One could imagine that the water current was like a bullet that was shot out, directly hitting the wheel and pushing it to rotate. For example, the Pelton Impulse Water Turbines would spray water at high speed from the spray head and hit the water bucket. The water bucket was connected to the runner, which would drive the runner to rotate and convert the kinetic energy of the water flow into the mechanical energy of the runner. 2. ** Principle of Reaction Water Turbines ** - The runner of the reaction type water turbine was rotated by the reaction force of the water flow. During the process, the pressure energy and kinetic energy of the water flow changed, but the main change was the conversion of pressure energy. For example, in the Francis reaction water turbine, the water flow entered the water guide mechanism from the spiral case and then flowed into the runner. In the runner, the water flow produced pressure on the runner blades. At the same time, because the flow of water also had the effect of kinetic energy, the runner rotated under the reaction force of the water flow, transforming the energy of the water flow into the mechanical energy of the runner. Axial-flow reaction turbine was similar. Water flowed along the axis of the runner, and the runner rotated through the pressure and reaction force. Read more exciting novels for free
What is the difference between the principle of the counterattack type and the impact type of the water turbine?
There were the following differences in the principles of impulse and reaction water turbines: 1. ** The dominant form of energy in the energy conversion process ** - During the operation of the impulse turbine, the pressure of the water flow did not change, mainly because of the conversion of kinetic energy. It used the impact force generated by the water flow from high to low to make the wheel rotate to do work. For example, the impact force of water rushed to the water bucket of the wheel to make the wheel rotate, thus converting water energy into mechanical energy. - The pressure energy and kinetic energy of the water flow changed during the operation of the reaction type water turbine, but the main change was the conversion of pressure energy. Its working principle was to fill a conical cylinder (which could rotate freely around the central vertical axis) with water. When water flowed out of the curved tube at the lower end, it produced an acceleration in the direction of the water flow. According to Newton's third law, water acted on the curved tube in the opposite direction, causing the cylinder to rotate. 2. ** The water pressure when it acts on the runner blades ** - Impulse type water turbine was also known as non-pressure water turbine. The runner rotated due to the impact of water flow. The working wheel was exposed to the atmosphere. Only part of the bucket was in contact with the jet flow to exchange energy. In order to ensure the stable operation and high efficiency of the water turbine, the bucket of the working wheel must have a sufficient distance from the downstream water surface (namely, sufficient drainage height and ventilation height). - Reaction type water turbine was called pressure water turbine. The runner would rotate under the reaction force of water flow. Since the water flow pressure was different everywhere and not equal to the atmospheric pressure, there must be a closed flow channel in the water guide mechanism, the runner and the area behind the runner. 3. ** Need a draft tube? ** - Pelton turbine did not need a draft tube because the flow of water leaving the runner was already very slow and was usually under atmospheric pressure. Due to the lack of a draft tube, the impulse turbine utilized less energy from the runner outlet to the downstream water surface than the reaction turbine. - The reaction type water turbine must be equipped with a draft tube to recover the pressure, reduce the kinetic energy loss at the runner outlet, and further utilize the water flow energy between the runner outlet and the downstream water surface. 4. ** Water flow entering the rotating wheel ** - In the impulse type water turbine, since the water pressure in the working wheel is constant, it is possible to widen the working wheel channel appropriately, so that the water flow is close to the front of the runner blade, and the air layer will separate the water flow from the back of the blade. In this way, the water flow does not enter the working wheel along the entire circumference, but only enters the working wheel through one or more jets at one or more local places. Because the working blade channel is only filled with water when it faces a certain jet, and when it turns to the next jet, the water in the blade channel has been emptied, so the water flow along the blade will not be disordered. - The reaction type water turbine did not have such a feature of water flow. 5. ** Runner water flow, output, speed and other related characteristics ** - Only part of the working wheel of the impulse type water turbine passes through the water, and part of the bucket works. Therefore, the overflow of the water turbine is small. Therefore, under the conditions of a certain water head and working wheel diameter, the output of the impulse type water turbine is relatively small, and the rotation speed is relatively low (this is because the absolute speed of the runner entrance is large and the peripheral speed is small). The output is small, resulting in a relatively low specific rotation speed. It is suitable for occasions with high water head and small flow. - The reaction type water turbine did not have such a situation where part of the water flow and part of the working parts worked. In different application scenarios, its output, speed and other characteristics were different according to its specific structural type (such as Francis, axial-flow, diagonal flow, etc.). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The principle diagram of the goose fish copper lamp
The Yanyu copper lamp was mainly composed of the head and neck of the goose, the body of the goose, the lamp plate, and the lamp cover. The principle was as follows: the goose neck and the goose body were connected by the mother-son mouth, and the fish body, the goose neck, and the body cavity were hollow and connected. When the lights were lit inside the fish, the smoke and exhaust gas would rise to the goose's neck and then be guided into the goose's body using the siphoning principle. Before lighting the copper lamp, the ancients would put some water into the belly of the wild goose (the body cavity of the lamp). After the smoke and exhaust gas produced after the lamp was lit entered the body of the wild goose, it would be diluted by the water to reduce or eliminate the pollution of indoor air, thus achieving environmental protection. One side of the lamp plate was attached with a lamp handle to control the lamp plate to rotate back and forth. There were two straight wall rings in the circular lamp plate. One straight wall ring was fixedly connected with the lamp plate in the form of a mother and son mouth, and the other straight wall ring was connected with two curved plates to form a lampshade that could be opened and closed left and right. It could not only block the wind, but also adjust the illumination of the light. The novel "Gilded Palm" is equally exciting. Everyone is welcome to click and read it!
The type to counterattack.
📚I recommend the following novels to you: 1. "Don't, I'm a Big Boss Too": The male lead was one of the two reborn big bosses. At first, he was hunted down and turned into trash. Then, he pretended to be a pig to eat a tiger and counterattacked. Classic Xianxia type. 2. "Quickly wear: The host is too crazy, the system can't stop it." From the male protagonist's perspective, it was also a counterattack after being useless at the beginning. Fantasy romance type. 3. "The Life of the Cheat of the Cannon Fodder": The female protagonist plays the role of a pig to eat a tiger and counterattack. It's a space-time travel type. 4. "How Can My Manga Come True": A derivative of the Doujinshi genre, with the female lead playing the role of a character in the manga. 5. [The Rebirth Kite Return to the King's Heart]: The male lead was a loser at first, but later he turned the tables on the Supreme One. Ancient romance type. I hope you like this fairy's recommendation. Muah ~😗
What is the main principle of Water Margins?
" Water Margins " was a classical Chinese novel. It mainly told the story of 108 rebel leaders who gathered together to rebel against the ruling class. Although these righteous thieves failed in the end, their actions and beliefs conveyed some important truths. One of the main principles was the way of loyalty. In the novel, these righteous thieves always adhered to their beliefs and fought for justice and freedom, even in the face of difficulties and danger. Their actions showed that only by upholding justice and loyalty could they obtain true respect and achievement. The other main principle was teamwork. In the novel, these righteous thieves did not act alone but formed an alliance. They had achieved a lot of success through mutual support and cooperation. Their actions also tell us that only through unity and cooperation can we achieve greater goals. In addition, Water Margins also emphasized the concept of benevolence. In the novel, although these righteous thieves were selfish, they were also full of love and care. They not only protected their own lives but also cared for the lives of others. Their actions showed that benevolence was an important condition for achieving social harmony and justice.
The principle of peach blossom water diarrhea
The main reasons for drinking peach blossom water to have diarrhea were as follows: Firstly, peach blossoms had the effects of laxative and dieting. People with different physiques might have diarrhea after drinking it. If the diarrhea stopped after stopping drinking it, it might be caused by the effects of peach blossoms themselves. Secondly, if the peach blossom water was too cold or frozen and consumed in large quantities, it might irritate the stomach and cause diarrhea. Third, the plant's acidic substances contained in the peach blossoms would combine with the protein in the intestines to form a substance that was difficult to digest, stimulating the stomach to secrete a large amount of digestive juice, causing diarrhea. Fourth, some of the ingredients in the peach blossoms might cause some people to be allergic, resulting in diarrhea and other allergic symptoms. Fifth, if the peach blossom itself was unclean, it might cause food poisoning and other problems if it was used to soak in water, resulting in diarrhea. The novel " Smelling the Jasmine Fragrance Again " is equally exciting. Everyone is welcome to click and read it!
The Principle of Washing Rice Water and Blowing Clothes
The principle of using rice washing water to blanch clothes was that the rice washing water contained starch. When the rice washing water came into contact with the mold spots, the starch could absorb and remove the mold spots, thus making the clothes white. In addition, the rice washing water had a pH-value between 5.5 and 6. After soaking, the pH-value was about 7.2, which was slightly acidic. It was suitable for cleaning items and had a certain cleaning power. The texture was mild and there were no side effects. Therefore, the rice washing water could be used to wash white clothes and remove the yellow stains on the clothes.
Diagram of three water levels in the manure tank
The three water levels of the manure tank and their related conditions were as follows: - Low water level alarm: When the low water level alarm is issued, it indicates that the waste in the manure tank has accumulated to a certain extent and needs to be cleaned up. At this time, there may be problems such as poor flushing of the toilet and bad smell in the sewer. You should contact a professional cleaning service in time. - Normal working condition: During normal work, the water level of the manure tank is moderate. In this state, daily activities such as using the toilet, bathing, washing clothes, etc. can be carried out normally. The manure tank will normally dispose of waste, but it also needs regular inspection and maintenance. - Danger of high water level: If you find bubbles in the sewer at home, the smell is serious, and even the sewage overflows the ground, it means that the manure tank has reached a dangerous state of high water level. At this time, all water use activities should be stopped immediately and professional personnel should be contacted for emergency treatment. Watching " Safe Entry " wasn't enough. Everyone, please click to read the novel!
The Principle of Spitting Black Water to Eliminate the Three Pests
The principle of getting rid of the three pests by spitting black water was achieved by adding special drugs to the food of the deceived. This drug might be iron, which would react with stomach acid and other stomach components to form black iron sulfur. At the same time, it would cause adverse reactions such as dry mouth, nausea, vomiting, diarrhea, and so on. This design was designed to create the illusion that the patient's condition had worsened in order to confuse the victim.
The Principle of Spitting Black Water to Eliminate the Three Pests
The principle of spitting out black water in Zhou Chu's Three Pests was achieved by adding special drugs to the food of the deceived. This drug might be iron, which would react with stomach acid and other stomach components to form black iron sulfur. At the same time, it would cause adverse reactions such as dry mouth, nausea, vomiting, diarrhea, and so on. The purpose of this plot was to create the illusion that the condition had worsened to confuse the deceived.
The wind turbine will reverse
According to the current wind turbine technology, the angle of the blades of the wind turbine was designed to be one-way, so it could not be reversed. It was an electrical device that converted wind energy into mechanical work, and the mechanical work drove the rotation of the turbine to finally output alternating current. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>