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The odor of toilet or kitchen drains is an old problem. New residential houses are nowadays focused on new technologies. However, the basic problems of basic facilities are still frequent. Floor drain is a typical example. 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 height of the water seal on the floor drain is not enough, most of them are only 20-30mm, and it is easy to dry out, 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 drains is simple, and there are few multi-channel floor drains and side wall floor drains, which cannot meet the increasing level of residential design and the increasing number of water appliances.
How to avoid the above problems from a technical point of view? In addition to the appearance of landscaping, the new type of floor drains should be noted for performance improvement.
1. 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.
2 multi-channel floor drain inlet should not be too much
Multi-channel floor drains have been developed in recent years. There are usually 3 to 4 inlets in a body (accepting face washers, bathtubs, washing machines, and floor drains). This structure not only affects floor drain displacement, but also does not meet actual design conditions. . Therefore, the intake of multi-channel floor drains should not be excessive, and there are two (ground and bathtub or floor and washing machine) to meet the needs.
3. The height of floor drain is limited
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.
4. Floor drain hole opening area should not be too large
The hole diameter of the floor drain shall be controlled between 6-8mm 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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