The Qian rules in the heat exchanger industry
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This post was last edited by wiseboy on 2011-7-10 15:23, version 1. In the past, the thermal and process calculations for heat exchangers were basically carried out by the design firms ； 2. Things have changed now; some people in the design firms have handed over the thermal and process calculations to the heat exchanger manufacturers. This way, those in the design firms see a reduction in their workload, and they can also get the results from the manufacturers. . . . . . ； 3. As a result, some clever (perhaps with average manufacturing capabilities) heat exchanger manufacturers increased their investment in thermal and process calculations, gaining a competitive edge over design firms (especially for turnkey projects), leading to a surge in orders ； Meanwhile, other manufacturers, relying on their strong manufacturing capabilities, still foolishly wait for the blueprints to be ready, refusing to invest even that meager amount of effort or technical expertise, resulting in a decline in orders. Some heat exchanger manufacturers fail to keep up with the times; they prefer to invest large sums of money in purchasing machine tools to improve their manufacturing capabilities, without realizing where the real issues lie. No ideas: there is no way out ； If you can’t keep up with the times, stay in history! Believe it or not, this post will be deleted soon.
Hehe, I’m from one of those small heat exchanger manufacturers you mentioned. These days, some design firms really refuse to take on any work at all. Previously, a colleague of mine answered a call from a design firm; they asked how to calculate the heat transfer fluid consumption, given the temperatures at the inlet and outlet of the heat transfer fluid, as well as the temperatures and flow rates at the inlet and outlet of the refrigerant. I’m dying of laughter
This post was last edited by wiseboy on 2011-7-10 16:31. Well, your chance has come. If you can perform thermal and process calculations, you stand a chance of outperforming those large-scale mechanical manufacturing companies that fail to keep up with the times and remain stuck in a naive way of thinking.
The manufacturing plant will **increase the thickness allowance of the equipment** during production. Because the quote is based on weight. So it’s not wise to call them manufacturer design drawings either.
The manufacturing plant I am supervising now is very large. But no process calculations are done. Only perform strength design
This post was last edited by wiseboy on 2011-7-10 17:21, version 1. In some (I would say many) cases, the design office creates easy-to-use drawings, orders are placed for production drawings, and the owners bear the cost of the heavy equipment. The ones that benefit from these three are the equipment manufacturers capable of performing process and thermal calculations ； 2. Equipment manufacturing plants are large, and the manufacturing equipment they use is advanced and useful, but its applications are limited; they only understand mechanical aspects, which puts them far behind the times.
If you know heat and process calculations, you will be one step ahead and superior.
This post was last edited by wiseboy on 2011-7-10 at 18:54. A few days ago, I was invited to visit a large company in Xian. The factory manager talked at length about their manufacturing equipment, which are advanced machines capable of processing the shells for X-type missiles. But as far as I know, they lack sufficient tasks; they have been entering the civilian (heat exchanger) industry for years with no improvement, and to this day they still lack thermal and technical capabilities. A few years ago, it started producing heat exchangers at the same time as a small company in Wuxi; that company is now thriving, and its secret to success lies in its ability to handle thermal and mechanical design, which makes it very popular among the lazy staff in design firms. No ideas: there is no way out ； If you can’t keep up with the times, stay in history!
This post was last edited by wiseboy on 2011-7-10 20:22. Not working actually has its advantages. I would simply recommend your factory, saying that it has the technical expertise, the ability to conduct calculations, strong capabilities, and provides guarantees (of course, only if your factory is truly skilled in thermodynamics and process calculations). . . . The owner simply avoids holding a tender, or conducts a symbolic one, and assigns the task to your manufacturer – how could you not see what that implies? If you do it yourself, carry out the calculations, and simply proceed with production, then in the case of an open tender you won’t be able to get it! :Lol, get more for doing nothing, and bear less responsibility ； You get less when you work hard, and have to take on more responsibility. Can you do math?
This post was last edited and replied to by yuri714 on 2011-7-10 20:59. Reply 4# penryn :funk: Little onion, you’re lying. . . The competitive environment in the free market forces many people to be cautious and try to reduce weight; at least I wouldn’t dare to increase the thickness of the products :L When manufacturing heat exchangers, our company is always worried that excessive weight might prevent us from winning bids, so we carefully compare various options in order to find those with the lowest weight. . . In the first two months, there was a project related to heat exchangers; it seems that our company’s proposal was 10% more expensive than those of other competitors, and as a result we didn’t win the contract :(
The original poster is still quite naive! Let’s see if the main activities of hospitals and schools these days are still purely providing medical care and education Design institutes are no longer purely high-tech organizations; their main focus is making profits...:dizzy: