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Pump adapter design and installation of common errors and solutions
As part of the project designers and installers did not know enough about the role and importance of the pump adapter, failed to truly understand the requirements of the specification, there are many problems in the actual design and installation work. The existence of these problems will affect the normal use of the pump adapter during a fire. Now to introduce the design and installation of fire pump adapter common error solution. Fire pump adapter 1, the pump adapter set unreasonable. Correct approach: the setting of the pump adapter, first of all should ensure that the convenience of connecting the pump fire pump; Second, to consider the pump adapter 15-40m within the scope of fire water; some pump adapter located at the corner, trench edge, corner Under, not only the location is not obvious, and fire engines simply can not close, the operation is also very inconvenient. Some pump adapter simply in the middle of the road, the store entrance, although the requirements, but obviously obstruct the traffic. 2, and indoor fire water supply pipe connection point is wrong. Correct approach: When connecting the pump adapter with the indoor ring, it should be far away from the fixed fire pump outlet and indoor pipe joints, and can not be connected in parallel several pump adapters at a certain point in the fire water supply pipe. In addition, the pump adapter should be connected to the fixed fire pump outlet pipe. In practical engineering, many designs often connect several pump adapters in parallel and connect to a certain point of the fire protection ring, which is not conducive to the water supply of fire engines. Some designs even connect the pump adapter to the suction pipe section of the fixed fire pump or directly into the fire pit, and once the fixed fire pump fails, these two wrong connections will result in a fire in the pump adapter Interior joined the fire water can not reach the indoor ring, but only stay in the fire pool, delay firefighters fighting the fire. 3, the number of pump adapters is not enough. The correct approach: the number of pump adapters should be designed to determine the economic calculation of indoor fire water consumption, each pump adapter flow should be 10-15L / S calculation, that is, the number of sub-district pump adapter = indoor fire hydrant system, the second flow / 10--15L / S + indoor automatic sprinkler system of the second flow / 10--15L / S. Many of the previous design in determining the number of pump adapters with a lot of randomness, and some even design automatic Sprinkler pump adapters and fire hydrant system pump adapters, but not required to set up independently. 4, the partition is not independent set pump adapter. Recommendation: For high-rise buildings, in addition to the series district water supply, the other water supply methods should be set separately for each partial pressure pump adapter, because the fire between the partitions water supply is relatively independent. However, many high-rise buildings using zoned water supply failed to do so. Instead, they designed pump adapters for low-grade fire service water systems. 5, the district pump adapter no obvious sign. Correct approach: The more high-rise buildings partition, the system is larger, the number of pump adapters set in the bottom also more. In this case, the installer shall use clear marks to mark the different types of pump adapters in different zones and different systems to ensure that firefighters will not add fire fighting water to other fire service water pipes in other non-fire zones in case of fire. This is also easily overlooked by many installers. 6, Ignore the pump adapter annex. Correct approach: pump adapter on the annex to the check valve, safety valve, gate valve and drain valve, the lack of any one accessory, will make the pump adapter can not be used properly in a fire. For example, a high-rise building pump adapter, due to negligence in the design, installation, there is no check valve installed, resulting in the pressurized test water, the fire pump to stop pressurizing the high pressure fire hose back to the fire truck Jugs break. Further Reading: Pumps Valves pipe fittings Exhibition 2016 Exhibition of Information Industry, Internet (Xiamen) Technology Co., Ltd. Author: Asian pumps Network Editor: Yao Xiaoxia (QQ / micro-channel :) (service hotline:)