For more than a century, people have made continuous improvement and innovation in the choice of materials for radiators, from the initial cast iron parts to the later steel radiators, stainless steel radiators, copper-aluminum composites.
For more than a hundred years, people have made continuous improvement and innovation in the choice of materials for radiators, from the initial cast iron parts to the later steel radiators, stainless steel "target=_blank> stainless steel radiators, copper-aluminum composite radiators [Ming series] , steel-aluminum composite radiator, copper-aluminum composite radiator, etc., the purpose of improving the radiator is to solve the problems of corrosion, weight, heat supply, etc. The appearance is constantly innovative, diverse, colorful, and everything. People are loved. But only the improvement and innovation of perfusion heating has not been made. Now it is time to improve the perfusion heating. How to change? How to innovate? First of all, we must first understand the current radiator What is the problem, and then give the right medicine.
1. The amount of draught is large - it must fill the pipe with water, otherwise the water will not flow normally, and the hot water that does not flow will become dead water. With the stagnant water, it can no longer supply heat.
2, slow heating - because hot water relies on the pressure of the pump to push the water to flow, relatively speaking, the water stays in the waterway for a short time, the hot water only flows quietly from the waterway, the hot water does not produce explosive power, Therefore, its heating effect is poor.
3, the production process is complex, labor costs - (such as copper and aluminum composite column wing radiator) due to corrosion problems of aluminum alloy, so the middle should be lined with a copper tube, the use of copper tubes and the use of welding technology.
4, the burden of the pump is too large - due to the large amount of water in the waterway, it must match the high-power pump to transport water. In view of the above various problems, the author wants to replace the traditional perfusion heating process with a spray heating process. Can you do it? Can do it; The author has already tried one, and the preliminary test results are very satisfactory. Here, let me make a similar process imitation to illustrate. Take a cup of hot water at 50 °C and put it on the wooden table at rest; in addition, take 50 °C hot water and put a chopstick in the cup. When the chopsticks stir constantly and stir constantly, you can see a hot air (fog). Constantly emerged from the mouth of the cup; and a cup of still hot water, although the cup mouth has hot air (fog), but the gas is weak, the fog is quite limited, and the area is not very small. From this point of view, hot water will quickly dissipate its heat energy during intense exercise. If the above principle is applied to the radiator, the hot water will roll continuously in the belly of the radiator to make the liquid water into a misty water droplet. The cooling effect will definitely outperform static liquid water. If the spray heating process is used for the heat dissipation of the radiator:
1. Water saving: Because the surface of the water is increased many times by the spraying process, its water consumption can be saved by about 80%.
2. Energy saving: Since the water consumption is small, the energy consumption is also reduced. The power of the pump is also reduced.
3, heating up quickly: because the water consumption is small, the burning time of water is shortened, and the temperature rises quickly.
4. Labor and materials: The water channel (copper pipe) in the radiator can also be omitted, and the welding is also saved.
5, environmentally friendly and comfortable: when heating, it also has a very small amount of water vapor to create conditions for the room to wet. Very suitable for dry areas. It can be concluded that the application of spray heating technology on the radiator is feasible, energy-saving, safe and reliable. It is believed that the development and production of it will be affected by the state (energy saving), the manufacturer (reducing the production cost), and the user. (Safe, environmentally friendly, comfortable) The three products that are strongly supported and loved.
This article by the product radiator: http:// finishing compilation!
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Forstner bits, flat-bottomed to drill holes in wood materials, they can cut on the edge of a block of wood, and can cut overlapping holes; for such applications they are normally used in drill presses or lathes rather than in hand-held electric drills. Because of the flat bottom of the hole, they are useful for drilling through veneer already glued to add an inlay.
The bit includes a center point which guides it throughout the cut (and incidentally spoils the otherwise flat bottom of the hole). The cylindrical cutter around the perimeter shears the wood fibers at the edge of the bore, and also helps guide the bit into the material more precisely.
Forstner bits have radial cutting edges to plane off the material at the bottom of the hole. The bits shown in the images have two radial edges; other designs may have more. Forstner bits have no mechanism to clear chips from the hole, and therefore must be pulled out periodically.
Forstner Bits,bosch forstner bits,colt forstner bits
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