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Floor drain is an important interface connecting the drainage pipe system and the indoor ground. Its performance directly affects the quality of indoor air. Although the odor is not as toxic as formaldehyde, it also destroys the home atmosphere. From the architects of the Institute of Residential Construction and Equipment of the China Institute of Architectural Design and Research, it was learned that in the design of residential buildings, they also conducted meticulous research on small places such as floor drains.
They reminded developers and architects to use floor drain products carefully, strictly based on drainage design, so as to avoid causing stench afterwards. At the same time, home buyers need to know more about floor drain, especially when purchasing a well-decorated house. Look at the smell of the bathroom.
Floor drains, as an important part of the residential drainage system, have not been taken seriously by all parties concerned. It is generally believed that the floor drain is only capable of carrying loose water on the ground surface, and there is no special research on the structure and performance of the ground drain itself, resulting in the long-term and extensive use of the most traditional bell-type floor drain.
In recent years, with the widespread use of UPVC pipes, some manufacturers have developed and produced plastic floor drains such as UPVC or ABS that are used in conjunction with them, and some have produced stainless steel or other metal products.
However, there are more or less problems with the existing floor drains:
(1) The water seal height of the floor drain is not high enough, most of which is only 20~30mm, and it is easy to dry up, so that the gas in the drainage pipe is flooded into the room.
(2) The seal bowl of the bell-type floor drain can be easily removed or floated due to the positive pressure in the piping system, and the water seal is destroyed.
(3) Drainage flow from floor drain is small, and it is easy to cause poor drainage.
(4) Floor drain has poor self-cleaning ability, so it is easy to catch hair and mud and cause clogging.
(5) The structure of the floor drain is irrational, the water seal capacity is poor, and the water seal is easily damaged by the negative pressure formed in the drainage pipe system.
(6) The form of floor drain is single and cannot meet the ever-increasing level of residential design and the increase of water appliances.
How to avoid the above problems from a technical point of view? What are the performance improvements that should be noticed in addition to the beautification of the new floor drain?
Floor drain body structure meets "self-cleaning" requirements
Floor drain body refers to the floor drain to form a water-sealed component. Whether the structure is reasonable or not determines the size of the ground drain discharge capacity.
The new type of floor drain shall ensure that the height of the water seal is 50mm, and there is a certain ability to maintain the water seal to prevent the spread of odor. There should be a smooth cross-section of the water to ensure that the sewage can pass quickly, and no dirt, such as hair or fibers, will be caught by the internal structure of the floor drain. Have greater self-cleaning ability, easy to clear when congestion occurs.
Floor drain height restrictions
The height of the floor drain is determined by the layout of the drainage system. The commonly used concealed installation method is that there are two types of toilet floor slabs that are partially submerged and toilets are cushioned.
In order to meet the bathroom height and ergonomic requirements, the former's clearance clearance is 300mm, the latter's cushion height is the highest 170mm, therefore, with the matching floor drain height should be within 200mm and 120mm respectively, and must Lateral drainage.
The floor area of ​​floor drains should not be too large
The aperture of the floor drain shall be controlled between 6 and 8 mm to prevent dirt, such as hair, sludge and sand, from entering the floor drain.
In fact, there are still many technical requirements for floor drains, but consumers only need to learn common sense. To solve the old problems of small floor drains, designers, product manufacturers, and construction workers need to have common control. (
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Rolling mill oil film bearing technology, is a system engineering technology, at the same time, is also a multidisciplinary field of comprehensive engineering technology, its development speed and the formation of supporting capacity, from one side reflects the development speed of China's industry and the level reached. This paper briefly discusses several main aspects such as operation technology, manufacturing technology, testing technology, theoretical research, product development, and complete set of capabilities
1. Operation technology, including a complete set of knowledge and skills such as storage, cleaning, installation, commissioning, operation, maintenance, diagnosis, and management of rolling mill oil film bearing parts. The correct application of running technology is a reliable guarantee for the safe operation of bearings.
In the early 50s, only the reversible rolling mill of Anshan Iron and Steel Cold Rolling Mill in China was equipped with oil film bearings. Its operation and management are carried out in full accordance with the relevant regulations of the Soviet Union. In the traditional process, the rolling pressure is not large, the rolling speed is low, the lubrication system is also very simple, and the operating technology level is relatively low. However, in actual operation, the work of the relevant management, technical personnel and operators is very serious, strictly in accordance with the regulations, and has accumulated experience in use and maintenance.
Mill Tapered Bearings,High Speed Bearing,Waterproof Bearing,High Speed Friction Resistant Bearing
Hebei Fangqiang bearing manufacturing Co., LTD , https://www.fangqiangbearing.com