1. Company Profile
Shanghai Fengxian Equipment Vessel Factory was founded in 1982, and specializes in designing and manufacturing all kinds of pressure vessels. We have a high profile in the industry. And in 1998, we registered the brand of “Shen Jiang”. Our pressure vessels are widely used in petroleum, chemical, electronic, automotive, power generation, mining, pharmaceutical and other industries. Look forward to the cooperation with you in the increasingly powerful of our company.
2. Main Principle
The main principle of the device is to use the gas tightness of the gas tank to adjust the volume of water in the system to achieve the control of the system pressure, it can meet the needs of the system water supply pressure, but also has a certain system to adjust the volume, Its role is equivalent to the water tower or high water tank.
3. Analysis of Pneumatic Volume of Diaphragm Pressure Tank for Fire Protection
As the initial fire flow from the diaphragm-type pressure tank supply, the pump flow only need to consider the system leakage or diaphragm-type pressure tank on the flow requirements, so the flow may be appropriate to choose a little smaller. For the fire hydrant system regulator pump flow to about less than one fire hydrant of the water, ≤ 5 L / s. Spray system The flow rate of the regulator pump is ≤ 1 L / s for less than one nozzle.
Selection method of diaphragm type pressure tank
The above two kinds of pressurized facilities have their own strengths, in the specific project should be treated separately, choose the appropriate design. For a class of high-rise buildings and important buildings, the fire caused by the huge losses, high fire requirements, should try to use diaphragm-type pressure tank pressurization facilities to solve the pressure requirements of the top several layers, and the regulator should be set to spare pump to improve The use of the reliability of the two types of high-rise buildings and ordinary dangerous buildings, due to the site, capital and other conditions, may consider only the booster pump, but in the selection of booster pump products should ensure reliable quality.
Whether it is a regulator tank or booster pump, are provided for the initial fire hydrant and nozzle water pressure protection, and the success of the initial fire is the key to control the fire, the fire can be reduced to a minimum loss.
In summary, high-rise building high-level fire tank pressurization facilities should be designed according to specific engineering control specifications; booster pump flow, head and the total capacity of the regulator tank and other parameters should also be based on different conditions to determine , Rather than mechanical application, so meet the specifications, reliable operation, economic and reasonable.
4. Production Process
1. Lofting, marking-off & cutting.
2. Manufacturing & welding
a. Make holes
b. Crimping plate
f. Circumferential welding
3. Surface treatment
a. For Carbon Steel
(1) Sand blasting
(2) Primer (for 2 times)
(3) Finishing coat
b. For Stainless steel
(1) Sand blasting
|Diameter (mm)||Pressure (MPA)||Total Height (mm)||Thickness (mm)||Total Capacity (m3)||Adjustable Volume (L)||Outlet Diameter (mm)|
6. Scope of Application
Diaphragm pressure tank is widely used in central air conditioning circulating water regulator, steam supply expansion system, heating system circulating water replenishment regulator, fire water supply system water supply regulator, frequency water supply voltage regulator, boiler water, pressure water supply and other occasions.