Beijing Meifeng Yuehua Pump Industry Co

Specializing in the production of gas top pressure fire water supply equipment
[
Meifeng Yuehua
]
Gas top pressure fire protection equipment manufacturer
Affordable
,
Quality Guarantee
!
Gas top pressure fire fighting equipment manufacturer
[Meifeng Yuehua] A top pressure fire fighting equipment manufacturer with strong strength, advanced technology, affordable, excellent quality line is a collection of scientific research , design and development, production, after-sales, for sale in one place, low-priced gas top pressure fire fighting equipment manufacturer in the whole network
Specializing in the production of gas top pressure fire water supply equipment
Operation and working principle)
Professional production Gas top pressure fire water supply equipment
Composition
*
Pressure tank, pressure stabilizing pump system, cylinder system, steam pump, and control system.
Specializing in the production of gas top pressure fire water supply equipment
Start-up and operation of the pressure-stabilizing pump system
*
First fill the pressure tank and system with water before starting. After filling to a certain level, Start the pressure-stabilizing pump and continue to pump water into the system until the water level in the pressure-stabilizing tank is raised to the set water level limit. Immediately, the pressure-stabilizing pumps (two units, one for backup and one for use) will automatically stop. At this time, if the pressure When the pressure is below the lower limit set by the system (
is the upper limit of system pressure,
is the lower limit of system pressure), the steam pump automatically replenishes air into the tank until the pressure reaches the set steady pressure. The steam pump stops when the system pressure reaches the upper limit. This is the completion of a voltage stabilization cycle. At this time, the entire fire protection system is in a stable voltage state. When the leakage pressure in the system drops to
, the magnetic flap level gauge detects that the water level in the tank has dropped. When the water level drops to the set lower limit of the water level, the pressure-stabilizing pump system automatically starts. Add water to the system. When the water level reaches the upper limit set by the system, the water pump will stop. (If the pressure inside the tank is too high during the water replenishment process, that is, it is higher than the set pressure limit of the pressure stabilizing system, then the solenoid valve on the top of the tank will automatically open to release the pressure to ensure that the water can be replenished to the set pressure limit. If the water level of the system is lower than the lower limit of the pressure set by the system, the steam pump will automatically start to supply air to the tank
,
until the upper limit of the pressure set by the system
The steam pump stops and the operation is repeated to ensure that the pressure stabilizing system is within the set water level (
) and pressure (
) to achieve the purpose of pressure stabilization.
Professional production of gas pressure Fire water supply equipment
,
gas cylinder system
*
The gas cylinder group is equipped with only gas cylinders
, and each gas cylinder is connected to a
The pipeline is connected,
The pipeline is connected to the top of the air pressure tank. The opening and closing of the pipeline is controlled by the solenoid valve
. The pressure in the cylinder is (
) kg, and the outlet pressure is set to the lower limit of the system. The pressure is below
. Usually the gas cylinder system does not work and remains in a dormant state. It is put into work only when a fire occurs. The working process is that when a fire occurs, the pressure of the pressure stabilizing system drops sharply. When it drops to
When Emergency fire water supply.
Specializing in the production of gas top pressure fire water supply equipment
Steam pump system
*
This system can be equipped with one large and small steam pump or one atmospheric pump (< br/>The air pump is for one backup and one for use). The large air pump is usually in a dormant state, and it is started only when a fire occurs or the small air pump fails. It works in conjunction with the air cylinder system and is usually stable. It has the function of pressure protection. When there is a fire, it cooperates with the gas cylinder system to pump the water in the pressure tank into the fire piping system as quickly as possible. The small steam pump is usually only used to stabilize the pressure, because it is used during the pressure stabilization process. The gas volume is very small, so two gas pumps, one large and one small, are installed in a large system, and one gas pump is installed in a small system.
Specializing in the production of gas top pressure fire water supply equipment
,
large and small air pumps Working process
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The outlet pipeline of the steam pump system is connected to the top of the pressure tank. Each steam pump outlet is equipped with a one-way valve to ensure that the regulated gas and water will not flow back into the air pump. .When the pressure of the stabilizing system drops to the set lower line
, the small steam pump starts to pressurize the stabilizing system and pipelines until the pressure reaches the upper limit of the set value
The steam pump stops (control range
When the small steam pump fails or the pressure drops sharply to
, the large steam pump starts to complete the pressure stabilization process. Repeated operation in this way ensures that the pressure stabilizing system is stable within the set pressure range, and the large and small steam pumps are on standby. and the purpose of voltage stabilization.
_Copy
Specializing in the production of gas top pressure fire water supply equipment
The system starts immediately, and coupled with the large steam pump, the two sets of high-pressure gases quickly pressurize the pressure tank. The pressure in the pressure tank increases instantaneously. At this time, the high-pressure gas of the system quickly drives water into the firefighting pipe, ensuring that
minutes of emergency firefighting water quickly enters the firefighting system to achieve the purpose of emergency firefighting water and ensure the safety of property and people. .
Specializing in the production of gas top pressure fire water supply equipment
,
The use of fire pneumatic butterfly valves
*
In order to prevent gas from entering the fire pipe and ensure the safety of the fire pipe, this system It is used when the fire pipeline is long and complex. When the water level of the pressure tank reaches the bottom, in order to ensure that gas does not enter the fire piping system, a pneumatic butterfly valve is provided at the bottom outlet of the pressure tank. When the water reaches above the bottom of the tank (when it reaches the bottom of the magnetic flip plate), the control point on the magnetic flip level gauge controls the solenoid valve to open, and the pneumatic butterfly valve is controlled to close quickly. This ensures that gas does not enter the fire piping system.
,
Overpressure safety measures
*
When the control system fails or the pneumatic butterfly valve at the outlet of the pressure tank is closed, in order to prevent the system from If the pressure is too high, there are pressure-limiting switches and safety valves on both steam pumps. The pressure-limiting switch ensures that the steam pump will stop when it reaches a certain pressure, while the safety valve opens to release pressure when it reaches a certain pressure value. All of the above can be guaranteed. The safety of pipelines and systems.
Specializing in the production of gas pressure fire water supply equipment
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Measures to prevent water from entering the steam pump and cylinder system
*
, When the tank When the water inside reaches the set upper limit of water level
(Optional) When this control fails, for double insurance, the equipment switches on the steady-pressure pump There is a hydraulic float valve installed on the main pipeline from the outlet into the tank. When the water in the tank exceeds the set upper water level
, the outlet pipeline of the pressure stabilizing pump is closed immediately, and the water level stays below the top of the tank
At this point, the water level will no longer increase to ensure that fire-fighting water does not enter the gas pipeline and cylinder system.
Specializing in the production of gas top pressure fire-fighting water supply equipment
,
Pressure setting
*
Small and large steam pumps stop
Small steam pump starts
Large steam pump starts
Solenoid valve
Open
Solenoid valve
Open
+
Solenoid valve
open
,
tank water level setting
*
stop pump water level
(manual)
Start the pump water level
(manual)
Close the pneumatic butterfly valve
(manual)
Setting the wiring of the meter
))
Connect the water pump
Connect
Electric contact pressure gauge
(
)
Connect to small air pump
Electric contact pressure gauge
(
)
Connect to large Air pump
Electric contact pressure gauge
（
）
Connect
Electric contact pressure gauge
（
）
Connect