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Over the years, the massive loss of hot water during the heating period has been a big headache for the northern urban heating sector. According to the actual investigation, it shows that the heat supply capacity per hour for a thermal power plant is 8000t, the water loss per hour is 500t, the daily water loss is as high as 12000t, the water loss is 6% of the water supply, while the national standard of water loss is not more than 1% Therefore, taking effective measures to plug this loophole has become a top priority. Cause a large number of major causes of loss of heating water in our country, I think that is still a lot of heating and hot water pipe installation and use of the original, backward collection of gas cylinders, manual exhaust valve. There are three factors that inevitably enter the air in a hot-water hot-water line: 1. The circulating pump is brought into the air during its operation; 2. The pump generates negative pressure and the air is drawn in when the boiler or pump is out of service; 3 The boiler is constantly replenished with cold water while the cold water separates the air during heating. Exhaust valve is hot water pipe to prevent "air resistance", to ensure the normal circulation of hot water indispensable device. However, this manual exhaust valve is the only one in the pipeline that can both exhaust and release hot water. In order to facilitate the operation of man, the gate valve is not installed at the top of the gas tank outlet, but from the outlet leads to the bathroom or kitchen, the gate valve installed in the wash basin or hose into the drain drain . Therefore, manual exhaust is actually through the release of air pressure in the role of pressure pushed out until the release of hot water so far. The normal running wind should immediately close the valve after the hot water is released, and the running wind will come to an end. In fact, the length of the water release time is beyond the control of the heating management department, and only the household can count on it. General residential building heating, a unit of a loop, each loop need to install 1 to 2 exhaust valve, and each building according to how many different units, together is a not small number, even if the normal daily manual run wind also Lost a lot of hot water, not to mention the valve open time can not be managed, let it run its own course, and sometimes the top of the family have no manual run wind households, in order to avoid conflicts between neighborhoods due to running wind, simply turn the manual gate valve into a 24h long Water. Manual exhaust is the only water pipe valve allows the existence of the release valve, and in other parts of the water are illegal, is not allowed by the heating regulations, there is no way to control the manual exhaust valve opening time length, the analysis is not allowed Doubtful, manual exhaust valve is the main channel and cause of loss of heating water. The most effective way to prevent the massive loss of heating hot water is to eliminate the manual exhaust and use the automatic exhaust valve with high quality and good utility. The automatic exhaust valve has been widely adopted in many developed countries in the world. It is different from the manual exhaust valve does not require artificial run wind, it must be installed in the pipeline set point, the so-called gathering point is the top of the top of the horizontal water supply pipe, which has 3 ‰ Tilt requirements, does not allow partial depression and bending, etc., when the air into the valve body, the valve will automatically open, the water level rise after the air is excluded, it will automatically close the valve, hot water can not spill, radically eliminate the manual row Gas is not timely, easy to form a "gas resistance" affect the heating effect and caused a lot of hot water loss drawbacks. The application of automatic exhaust valve to solve the exhaust manual cumbersome labor, the complete elimination of the heating pipe has the only outlet, due to the timely operation of the exhaust heat can keep the flow, because no water effectively save energy and water resources. Elimination of manual exhaust universal automatic exhaust gas technical costs and if the loss of a large number of hot water value, it is less investment, fast recovery, when investment can be seen that year the project benefits, according to a rough estimate of the heating period of 40 to 50 days You can recover the investment costs. What it produces is enormous economic and social benefits. The company integrated the world's advanced technology and China's national conditions developed cp1x-0.5 float automatic exhaust valve, after seven years of practice, the fourth generation of new products (patent application No .:.4) this year, the heating period has been stereotyped mass production Target market. Valve installed in the pipe without removal, you can clear the cleaning features, is a national initiative. It is bound to provide a reliable material guarantee for the technical renovation and heating system reform to prevent the loss of heating and hot water.
A Tower Crane is an inverted L-shaped structure that is capable of lifting several tons of weight to precarious heights.
The most striking feature of this crane is that it is self-building and can allow a building to be constructed adjacent to or even around it.
Tower crane Mast Section ( tower crane mast and tower crane basic mast ) is a steel structure with a normally square section, whose main mission is to provide the tower crane with sufficient height.
Normally it is formed by lattice modules that facilitate the transport of the crane. For assembly, these modules will be joined by screws, all of which will be connected to the projected height. Its shape and dimension vary according to the necessary characteristics of weight and height.
BQ also supplying other Steel Structure spare parts of tower crane like Basic Mast Section, Fixing Angle (or Reusable Fixing Angle), Anchorage Frame,Telescoping Cage Jacking Cage, Tower Crane Yoke, Hook and so on.
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