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.
Conclusion
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
c. Spheronization
d. Welding
e. Install
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
OR
(2) Polishing
5. Parameter
Diameter (mm) | Pressure (MPA) | Total Height (mm) | Thickness (mm) | Total Capacity (m3) | Adjustable Volume (L) | Outlet Diameter (mm) |
400 | 1 | 1230 | 3.5 | 0.09 | 30 | 50 |
1.6 | 5 | 50 |
600 | 0.6 | 1720 | 3.5 | 0.32 | 90 | 50 |
1 | 4.5 | 50 |
1.6 | 7 | 50 |
800 | 0.6 | 2230 | 4 | 0.77 | 217 | 100 |
1 | 6 | 100 |
1.6 | 6 | 100 |
1000 | 0.6 | 2370 | 5 | 1.28 | 400 | 100 |
1 | 7 | 100 |
1.6 | 7 | 100 |
1200 | 0.6 | 2741 | 6 | 2.2 | 677 | 100 |
1 | 6 | 100 |
1.6 | 8 | 100 |
1400 | 0.6 | 2969 | 6 | 3.3 | 970 | 100 |
1 | 6 | 100 |
1.6 | 9 | 100 |
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.
