The article puts forward a new kind of art about the energy dissipator-tank type of stilling basin a- gainst that the trajectory bucket energy dissipator has some questions in the first level of hydroelectric power stations on Kun fiver 2.

Author points out that the calculation of the altitude of fire tank should take the working pressure of sprayer in the worst-case location in consideration,which should not less than 0.

Combined with management practice of fire-fighting engineering of five high-rise buildings in one residential district the practicability of five buildings using one elevated fire tank is analyzed.

This paper introduces two working principles for increasing pressure to solve the insufficient pressure in the fire tank.

Aecording to the relevant technical criterion on fire control,combinging with the practice in the building project inspection of fire control,we pointed out the commom mistakes in the design of fire water tank,and put forward the corresponding countermeasures.

In order to make the current design specification more practical for fire prevention, the personal views were presented about the problems existing in the installation of fire water tank and air pressure device, fire hazard rating established for auto-sprinkling system in residence, and fire resistance limit of fire curtain.

To avoid the influence to the experimental result by the reflection of the water in the ship model pond;and the reduction of the efficiency in the laboratory by the course of waiting for water,a wave absorbing net cage is designed and tested.