Why say closed cooling tower is energy saving and environmental protection equipment, more and more users are using this kind of equipment to replace the original equipment (open tower), we can through data analysis and comparison, the two energy data accounting can be obvious. Energy consumption is basically two major aspects, one is water, the other is electricity. Both are energy costs that no cooling tower can escape, unless you leave the equipment on.
First of all, look at the consumption of water. Water is generally consumed in two aspects. One is the flying overflow after spraying, and the other is the evaporation consumption of water.
Let's look at the open cooling tower, the spray water of the tower is basically between two and three percent of the overflow rate, if we according to the daily operation of 10 hours, excluding holidays, 280 days of operation. According to the actual open cooling tower flow of 6000 cubic meters per hour to calculate. 6000*2%*10*280= 336,000 tons of water, and the same closed cooling tower, its spray flying overflow is very small, because after all, the spray work is carried out in the tower, almost can be controlled in a few thousandths, we calculate according to 5 thousandths, the same is 10 hours of work, 280 days a year operation, To achieve the same cooling amplitude is basically 4,500 tons per hour of closed cooling tower is enough, then the calculation results: 4,500 *0.5%*10*280= 63,000 tons, it is not difficult to see, because of the different design structure caused by the waste of spraying water resources, more than 200,000 tons of terror. The bigger the pool of the open tower, the more wasted water, because the evaporation area increases, and the closed cooling tower has no pool, so the consumption here is zero. Judging from the price of a ton of water, just such a equipment, a year to solve the capital of hundreds of thousands of enterprises.
Let's look at the comparison of electric energy, electric energy is not different, because they are all through the same power equipment to operate the equipment, the power of the two is similar, the running time is the same, basically the energy consumption is about the same.
To sum up, for the closed cooling tower energy saving accounting can be strong to open the tower out, and, today are advocating energy conservation and environmental protection, this is the general trend, so the closed cooling tower is more and more favored by the majority of users.
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The types of imported electromechanical complete sets of equipment were mainly textile printing and dyeing machinery, machine tools and IT equipment. Among them, textile printing and dyeing machinery showed a substantial increase, with batches and amounts increased by 13% and 77% respectively over the previous year. This is due to the rapid development of private textile enterprises in Wujiang in 2007, which have introduced advanced, high-value air-jet looms and spinning production equipment from Japan, Germany, and South Korea.
According to the analysis, unqualified complete sets of equipment mainly involve six reasons including safety, environmental protection, shortage of quantity, and intrinsic quality defects of the equipment. Then, how should companies import electromechanical complete sets of equipment to avoid these risks? The industry believes that the import of complete sets of electromechanical equipment companies should pay attention to three aspects: First, we need to understand China's mandatory standards for the equipment, including mechanical safety, electrical safety requirements, especially with the importer is not the same as the requirements Where the company must inform the other manufacturer before importing complete sets of equipment. The second is to increase the "self-protection" clause in the trade contract, write the quality and safety requirements into the contract or letter of credit, and set out the responsibility of the claim in order to facilitate the handling of subsequent problems. Third, for statutory inspections of imported mechanical and electrical products, enterprises should notify the inspection and quarantine bureau personnel to go to the site to inspect the imported mechanical and electrical products before they are unpacked; if the inspection and quarantine personnel agree to decommission the box by themselves, if there is a shortage of quantity or quality and safety The problem immediately ceased to be unpacked and sealed, and reported to the inspection and quarantine bureau.
Enterprises should pay attention to three issues when avoiding the risk of imported equipment
According to statistics, a total of 10,953 batches of electromechanical products were imported from Wujiang, Jiangsu Province in 2007, with a value of 963.85 million US dollars, an increase of 2.37% and 12.42% respectively compared with 2006. The Wujiang Entry-Exit Inspection and Quarantine Bureau carried out lots and batch inspections on key imported electromechanical complete sets of equipment. The total number of equipment imported for inspection was 1,852, with a quantity of 13,142 sets (sets) worth 575 million U.S. dollars. 23 batches of unqualified batches were discovered, the number was 1483 units. (sets), the value of 21.55 million US dollars, the number of unqualified sampling accounted for more than 10%.