Section 197 Manipulation of temperature

Hey, no way. I can only exchange this for this. Zhan Wuyan's flesh hurts incomparably. Although the boutique big red eagle is already last year's cigarettes. But he carefully preserved the taste, and the taste did not change at all.

This thing, you can do a lot of things by popping it out, and now you actually want to give away a pack, and Zhan Wuya is extremely distressed.

found Ma Qianzhuo, and after some more words, spent countless saliva plus a pack of cigarettes, and attached the promise that the ice machine would be the first to try after it was built, he finally got two bottles of refrigerant.

"Without P12, I can't play anymore—"

"You can play real iron - I will make you a machine gun ...... later," Zhan Wuyan perfunctorily put two bottles of F12 in his bag.

After fighting all night and debugging and disassembling the equipment countless times, a large piece of white ice finally appeared in the condenser! Zhan Wuya and Liang Xin were suddenly full of energy - this thing can still work after all!

Zhan Wuya hurriedly went back to the office to find his thermos cup, put the first piece of ice up and sent it to the Governor - there was also a piece of paper with "good news" pasted on it, and then beat the gong and drum all the way away.

Liang Xin called the canteen and told the canteen to quickly get a few incubators. The insulation materials in this home-made incubator are kapok and cotton, and they are specially used to transport popsicles and live seafood from the Fengcheng ship.

Zuihou, an ice machine, can produce about 2 kilograms of ice per hour. To be honest, it's a bit inefficient. However, Liang Xin noticed that their insulation measures were too poor, and it would be better if they had strengthened the efficiency of ice making.

Everyone is very happy that the Workers' Energy Committee has come up with such a thing, after all, it is inconvenient to transport ice from Bopu, and now there is something that is equivalent to enjoying frozen food anytime and anywhere. Someone immediately proposed to install one in the canteen. Some people also suggested that all the air conditioners in their hands should be dismantled and converted into ice machines - anyway, there are only a few air conditioners, and it is not good for anyone to use them, so they can be enjoyed by simply dismantling them to make ice cubes.

In fact, the demand for the production of refrigeration equipment has been very high recently, and not only Ziming Building. The communication center needs ice to cool the equipment, the explosives workshop needs ice to cool down to ensure production safety, and the canteen needs to store food. The Ministry of Health is to preserve the autopsy cadavers......

The number of refrigerators in the Crossing Group is pitifully small - no one had ever thought of it in the first place. The cold storage on the Fengcheng ship is a little far away from Bairencheng, and the cold storage on the ship is used by auxiliary engines to burn precious diesel fuel to maintain operation. Ma Qianzhu has always hoped that the CWTC can come up with refrigeration equipment that is more economical than marine cold storage.

The CWI has held several meetings on this issue, and they have long found a relatively simple, feasible and economical way to meet Ma Qianzhu's request, that is, the gas refrigerator mentioned by Liang Xin.

The so-called gas refrigerator is heated with gas to boil concentrated ammonia, and the evaporated ammonia vapor is cooled to condense and liquefy the water vapor in it, and the ammonia is condensed into liquid ammonia, and then mixed with hydrogen at the inlet of the evaporator, due to the different partial pressures of ammonia from the ammonia liquid violently diffuses to the hydrogen, so that the evaporator temperature is reduced, and it plays the role of refrigeration. After that, the ammonia is absorbed by the dilute ammonia water and becomes a concentrated ammonia solution, and the remaining hydrogen is returned to the evaporator. Therefore, the gas refrigerator is refrigerated by gas combustion and heating, so that ammonia, water and hydrogen are circulated in the pipeline, and the refrigeration temperature can reach as low as minus 40 °C. Extremely efficient.

Ammonia was no longer a problem when the 800-ton ammonia system was already in initial operation, and hydrogen was a by-product of the electrolysis of salt to alkali.

Using this principle, it is possible to make a small refrigerator at the level of a household refrigerator, and the jishu content of gas refrigerators is very low by the standards of the 20th century. However, in the Lingao industrial system in 1629, there were many practical problems that could not be solved in the manufacture of miniaturized gas refrigerators. Especially in terms of materials and processes. For example, the manufacturing and processing of refractory ceramics on the burner head, and the zinc alloy die-casting of the burner shell, all of which cannot be solved immediately. In addition, the efficient insulation materials necessary for the box are also lacking.

Since it was too delicate to do, the CWI planned to build a large "gas refrigerator" to reduce the difficulty of manufacturing jishu - a small burner for refractory ceramics could not be done, and a large cast iron burner was always fine - in fact, they were going to build a gas cold storage.

The cold storage was first built in the canteen, which itself has an ample supply of biogas and now has gas and is fuel-rich. As for the insulation material, only kapok or cotton can not be effective insulation, Zhan Wuya used the most common ice storage method of the ancients - building a cold storage underground, using soil to keep warm. The storage condition is also the earthen kiln, which is covered with a straw curtain and then piled with soil. By the time the ice cellar opened the following summer, the amount of ice lost was negligible.

Lingao Construction first excavated a rectangular cellar with open sides under a small dirt slope on the farm, compacted the ground and four walls, and then paved it with perforated bricks. Then add insulation material to the inner wall.

There is neither foam nor asbestos in the Industrial Energy Commission, and the only natural insulation materials that can be supplied in large quantities in Lingao are kapok and diatomaceous earth. In order to ensure the effect, the Industrial Energy Commission has alternately laid multiple layers on the inner wall of the cold storage. The pipes are all made of brass. After installing the cold storage, a straw curtain is laid on top of it, and zuihou is completely covered with a thick layer of earth. Only one access is left to connect with the ground. The passage is equipped with two layers of wooden doors inside and outside, and the door is equipped with thick insulation materials, and the people of the machinery factory try to make it close to the door frame, and paste several layers of belts as sealing materials. The combustion chamber of the cold storage is located on the ground. Heating is carried out using gas from the farm's gas generator. It rains a lot in Lingao, so Zuihou has built a special house above the entire underground cold storage for shelter, and there are drainage ditches on all sides.

After the ignition, the cold storage operated continuously for 24 hours, which proved that the minimum cooling of this cold storage was minus 16 degrees Celsius, and it could be maintained at this level stably

Everyone is already very satisfied with this. The theoretically achievable minus 40 degrees is of little particular significance to the Crossing Group. minus 16 degrees Celsius can already store all kinds of fresh food, make ice cubes, and produce all kinds of cold drinks for a long time.

Due to the construction of cold storage that can produce ice cubes in large quantities cheaply, not only to meet the needs of food, but even to a certain extent, it even acts as an air conditioner - large ice cubes taken from the cold storage are placed in the house to let them melt naturally, and this traditional cooling method soon spread in the dormitories and offices of the travelers. In order to prevent everyone from rushing to collect the ice, the ice tickets issued to everyone by the Planning Commission after careful calculation are in addition to the quota of several kilograms of ice cubes per day for the individual travelers. Each department has different quota standards depending on its needs.

Lingao Telecom's communication room has finally become cooler - not only for comfort, but also to ensure the normal operation of machinery and equipment. Since entering the summer, in addition to strengthening ventilation and cooling, the units of Lingao Telecom have been turned on in turn to avoid accidents caused by excessive heat.

Indigenous workers who work in the heat also enjoy the coolness of the ice. This kind of treatment touched many workers very much—the ability to use ice in the summer, which was enjoyed by the wealthy, is now available to ordinary people. Although in the huge workshop, this little cold air can't withstand much heat at all. But as Xiao Zishan often said: "Sometimes the common people just want the ruler to have a minimum attitude." ”

Due to the strong demand for ice, the CWI soon organized the construction of the second and third cold storages. Due to the accumulation of experience, the construction of jishu is more and more proficient, the energy consumption of the cold storage is further reduced, and the probability of failure is also greatly reduced.

With the completion of the fishing professional cold storage and the supporting gas station in Bopu, the cold storage on the Fengcheng ship was declared to stop operating under the order of the Planning Commission. After the shutdown of this large power consumer, the operation of the auxiliary engines of the Fengcheng was reduced to the minimum power to maintain the ship's own system to save fuel. After the shutdown of this cold storage that has been in continuous operation for nearly a year, the influence of the Navy Club in the executive committee has dropped significantly, and the Fengcheng wheel is no longer a place that some committee members are keen to go to. This result was probably the most surprising.

Of course, it is a pity to let this cold storage be idle, and another task given by the Planning Commission to the Industrial Energy Commission is: to study how to use gas to drive the auxiliary engine on the ship to generate electricity, so that it does not use stored diesel at all?

"Theoretically, of course." Zhan Wuya said with a smile, "In reality, ......"

"What, unrealistic?"

"It's not unrealistic, it's unnecessary." Zhan Wuya said, "The ship can obviously be connected to an external power supply." ”

Modern ships can use the power supply on the shore after entering the port, and the Fengcheng ship can naturally do it.

"To put it bluntly, as long as the installed capacity of the Bopu power station is expanded, the marine auxiliary equipment on Fengcheng will not have to continue to generate electricity at all."

Zhan Wuya continued: "Of course, it is theoretically possible to use gas instead of diesel to fuel auxiliary engines to generate electricity, but the laying of this pipeline is a big problem. ”

The implication is that it is unnecessary.

Xiao Zishan reminded him: The auxiliary engine is a large generator unit, and the output power alone is larger than that of all the pot camel machines in the entire Bopu power station combined. At that time, maybe Bopu will have to rely on the auxiliary engine of Fengcheng wheel to generate electricity

"Well, that's right. But such a big piece of equipment for marine auxiliaries -- I really haven't played with it, and I don't know the bottom of it. ”

"Anyway, this matter can be studied slowly. Don't worry. Xiao Zishan comforted him, "You still want to think about making a real gas refrigerator like this." ”

Xiao Zishan thinks that it will not be long before he can equip each traverser's house with a small gas refrigerator - provided that the gas pipes can be safely laid into the homes, and perhaps in the future, the aborigines' homes will be equipped with gas lamps.

As for the animal-powered ice machine that Zhan Wuya worked so hard to build, it was safely transported to Guangzhou. Then Mo Xiao'an received a telegram: "Quickly make hot water bottles and large-mouth thermos buckets." - Ice has been made, but there is no place to store it.

Mo Xiao'an sighed, got up and went to the glass factory. It occurred to him that thermos bottles are also a good trade commodity!

Making a thermos is already a piece of cake for glass factories. In particular, they have mastered the jishu of mold blowing, which made a breakthrough in the original feeling of the most difficult blow molding, with the mold, they no longer have to rely on the hand feeling of the blow worker, and can make hundreds of exactly the same finished product.

The key to a thermos is the bottle tank, which is essentially a glass bottle with a hollow layer. At the time of production, I actually adopt the ジシュ which I made in large and small bottles.

First of all, the worker dips a small amount of liquid glass in the liquid glass and blows it into a glass bubble, and after a little cooling, the glass bubble is constantly dipped in the liquid glass and constantly waved and blown up, and then it is drawn and quickly loaded into the mold, and then the air blows enough, and a preform is made after opening the model.

The glassworkers then repeat the work, but with a smaller model. In fact, in glass factories, they are blown in batches with compressed air when they are blown into molds. Now they don't have compressed air available, and for the time being they are still doing it by hand.

Mo Xiao'an watched a young man named Huang Zhongshan skillfully blowing preform one by one, and the smoothness of his movements was smooth, and he couldn't help nodding again and again.

"This is the fastest and most haode among the apprentices." Xiao Bailang sat on a wooden box and wiped his sweat - he was now in charge of both ceramics and glassworks - and was baked wherever he went.

"Have understanding."

"It's a pity that you can't make glass-blowing even if you have the understanding."

So far. Almost all of the slightly more complex products in the glass factory are molded blown or molded. The workers of the Jishu Glass Factory had not yet mastered the ability to make all kinds of products with blowing, scissors, and pliers, because the traversers themselves could not.

"Gotta grab some European glaziers!"

"Where in Asia are European glaziers?" Mo Xiao'an said, "The Europeans who come here in Asia are basically scum level. ”

Xiao Bailang didn't say anything, paying attention to the operation of the entire workshop to see if it was in order. Recently, the weather has been hot, and Ji Siwei has been away from the factory for a long time to engage in the trial production of the coal chemical plant, and the labor discipline in the glass factory is inevitably a little lax. As soon as Xiao Bailang arrived in the factory, he rectified labor discipline.

Xiao Bailang did not engage in any political and ideological work, and directly arrested a few foreign grinders into the labor camp -- and was only released after Wu De's interference. However, in this way, the production efficiency of the factory has improved a lot. Now his eyes swept away, and the entire workshop fell silent.

"You can't do that." Mo Xiaoan couldn't help but remind him, "As long as there is coercion, the people will not be convinced." ”

"Yes, know that grace and power are equally important." Xiao Bailang said casually.

"Yes. I'll ask the food factory to send you some kvass here. ”

"Chief, the gas station says it's time to deliver gas......"

"Okay. You have someone send it. Xiao Bailang put on his sunglasses and walked to the gas nozzles that had just been installed not long ago, a row of yellow and clear copper nozzles. He waved his hand: "Let's get started." ”

Several workers unscrewed the valve, and a red flame immediately erupted from the burning head. Xiao Bailang put on the thick labor protection gloves. Carefully reconcile the flames until they erupt in blue flames.

"Prepare the interface!"

Huang Zhongshan hurriedly sent the two glass preforms that had just been blown out of the annealing kiln with pliers. Xiao Bailang first burned the bottom of the large bottle and the neck of the small bottle with gas, and then cut it off neatly with a razor. Then he put the vial into the large bottle and filled it with three small pieces of cork between the large and small bottles.

Formally speaking, asbestos particles should be used, and the CWC can only use substitutes temporarily. Its effect is to maintain an equal space between the inner and outer bottles, so that it does not shake. Another function is to strengthen the structural strength of the bottle. After the bottle is ready, there is only the bottle mouth at the connection between the inner and outer bottles, and the bottle mouth is easy to break after filling with water. The asbestos insertion adds three additional support points.

He then heated the large flask on a gas fire until it was half-melted. This crucial step is coming. Xiao Bailang pulled up the pliers with a serious face to pull the half-melted liquid glass, and carefully pulled the gap at the bottom. This process seems simple, and there are certain jishu requirements for manual operation, which not only requires the bottom of the bottle to be smooth and tightly sealed, but also has to leave a thin glass tube. Modern thermos bottle enterprises are completed by automatic bottoming machines.

Xiao Bailang pulled it several times, but it didn't work. His face was burned red by the gas fire. He put down his pliers and took a few breaths, taking care of the others to try it out. After tossing a few times, I finally sealed the bottom as required.

Then comes the silver plating process. The thermos gall is plated with silver nitrate. The silver plating agent is injected between the gall walls through a small glass tube reserved at the bottom of the bottle, and with the basic supply of triacids and bases, this is not a thing at all. After Zuihou poured out the residual liquid, a layer of shiny silver was left on the entire wall of the glass bottle, shining like a mirror.

The workers let out a sigh of surprise. In fact, they have already seen the "secret technique" of the traversers when they made mirrors. There were some greedy eyes in the crowd watching the residue poured out of the bottle.

After the silver plating, the workers poured distilled water to wash and dry, and Xiao Bailang first used gas fire to heat the glass tube at the bottom of the bottle, and then cha into the suction pipe - this simple suction machine was designed and manufactured by Zhonglishi, a very simple suction type, barely able to reach the level of rough vacuum.

While pumping gas, the outer bottle is heated with a gas fire to promote the expansion of the gas so that the gas can be quickly pumped out. Of course, the Tufa pumping machine could not determine the pumping situation, so Xiao Bailang had to use the most primitive method and tried Shiyan repeatedly until he found the best pumping time

[зZcn.]