Brake pneumatic valve in the application of small and medium reservoirs for water equipment

in recent years, shangzhi successively in medium reservoir, reservoir and reservoir flow, the black dragon palace WeiHe town of small reservoirs JingZhou reservoir, shin township township 51 reservoirs, old ginger ditch reservoir, Yang's wing town shop at hongqi reservoir, reservoir, fashion view town longevity township cleft brake pneumatic valve should be used in reservoir as the water equipment, built of small and medium-sized water conservancy projects, in irrigation, flood control, power generation, and raise the aspects such as tortoise has played a large role, effectively promote the development of animal husbandry production of workers and peasants, at the same time, through the middle and small scale water conservancy construction, the project planning, design and construction, management, utilization, safety inspection and maintenance, etc. , also accumulated a lot of valuable experience. In order to solve problems and improve the industrial and agricultural production water, continue to build for storage reservoir construction is imperative. Therefore, to explore the safety and reliability of the engineering economic applicability is very necessary. Based on the application of brake pneumatic valve as a reservoir water equipment the attempt has promotion value. Shangzhi
ever built some of the small and medium-sized reservoirs, the lose of tunnel water equipment most of plane steel gate, the other a single or double lifting point hoist, lifting point gate with P type and type rubber water stop, this is more common, but the shortcomings are as follows:

rubber water stop construction technology demand is higher, or stop water effect is not good. With a rubber water stop to embedded Angle steel and channel steel on concrete wall, make the rubber water stop along the slide embedded parts, if the steel corrosion influence water effect.
rubber water stop aging, need to be replaced every few years, and maintenance difficulties, the high cost.
plane steel gate are subject to a hoist, and thus improve cost.
gate hoist is exposed to external. Vulnerable to man-made destruction, or others to the opening and closing operation, not easy to manage.

in small and medium reservoir water equipment used in pneumatic valves, from small reservoirs began to promote medium reservoir. Pneumatic valve selection

at present, the manufacturer of pneumatic valve is more, the more advanced pneumatic valve factory is Shanghai engineering pneumatic type knife gate valve, the designer should be according to the needs of water flow, according to the general pneumatic valve hydraulics calculation method to select the gate. From the manual open/close way, manual, electric dual-use, electric, etc. The current production of pneumatic brake valve, general shell test pressure for the. PN, seal test pressure. PN, medium for water, medium temperature & lt; ℃.
attachment choose
application brake pneumatic valve as water equipment, its itself cannot be installed directly, need to form a complete set of pneumatic valve and brake pipe and flange. Steel pipe can be designed and processed, the steel tube wall thickness shall be decided according to use fixed number of year. From practice, with steel plate welded steel tube wall thickness should be not less than mm, use steel should not be less than the mm. General for steel flange, its role is to pneumatic valves and steel tube join together, manufacturers can directly provide.
application in small and medium-sized reservoirs, can be set up two sets of brake pneumatic valve, working for the access door and door respectively, living section connection among them, in order to remove. （ Articulated needs to design and processing) Well,
general form, pneumatic valve, Tower) 。 According to the general small and medium reservoirs for water tower design can satisfy the brake pneumatic valve installation and maintenance for the principle, generally USES the square, the structure calculation according to the hydraulic calculation of reinforced concrete structures. And lose water tunnel. According to the usual reservoir tunnel design and calculation. And decorate a form. According to its location can be divided into the type in the front of the dam, dam, dam type is decorated after Chinese style. According to the number of pneumatic valve can be divided into single pneumatic valve, pneumatic valve type layout.
application brake pneumatic valve reservoir water equipment advantages ( See the table) :, reliable operation, stop water effect is good. Gate of the pneumatic valve opening and closing can be divided into manual, electric, so the reliable operation. The pneumatic valve brakes using purple steel or brass water stop, stop water effect is very good, use fixed number of year long. , low cost, the use of brake pneumatic valve to lower than the cost of plane steel gate %. , simple construction, easy to install. Brake pneumatic valve as long as the hoisting in place, connecting bolts. , easy to management and operation safety. Brake pneumatic valve is normally closed the gate well within the managers usually unable to open/close, also less susceptible to man-made destruction.


'table' number


the arrangement benefits


simple use site description



type decorates
in the front of the dam operation is reliable, in a certain water antifreeze, lose tunnel without pressure
and the solution is additional work bridge, the water level is lower than the pneumatic valve without antifreeze


recommended small reservoir


dam Chinese style layout
and bridge scheme compare save work, pneumatic valve well stable

front have lost water tunnel pressure small reservoirs
according to actual circumstances, use the



dam type decorates
after the construction is convenient, less volume, low cost
the pneumatic valve well not antifreeze, losing pressure that the tunnel has

small reservoir is unfavorable use



layout pneumatic valve
and operation safety, convenient maintenance
install more complex

medium reservoir medium reservoir should be



problems should be paid attention to in the design and construction: medium reservoir using brake pneumatic valve for water equipment, should design vent, in case the cavitation occurs when water. Using diameter than sluice pneumatic valve, pneumatic valve design, the construction should be considered in the gate of the volume and weight, so that the installation and construction safety. All joints need oil-immersed asbestos tape water measures so far.

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