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Current Location : Xizhiquan ⎝⎛和丰娱乐⎞⎠ > Fire-fighting equipment > Fire-fighting gas pressure equipment > Shanghai Xizhiquan 3CF DXZQ fire-fighting gas pressure equipment
  • Shanghai Xizhiquan 3CF certification DXZQ fire gas top pressure equipment DXZQ
  • Ambient temperature: 5 ~ 40 ℃
    Relative air humidity: ≤85%
    Medium temperature: 4 ~ 70 ℃
    Power supply voltage: 380v (+ 5% -10%)
  • Click: 5528
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Product concept:

消防产品3CF认证证书 DXZQ gas top pressure water supply equipment is based on fire protection design code "Code for fire protection design of high-rise civil buildings", "Code for fire protection of building design" and standard GB27898.4-2011 "Fixed fire water supply equipment Part 4: Fire gas top pressure water supply equipment ", GB6245-2006" Fire pump performance requirements and experimental methods "as a new type of special fixed fire extinguishing equipment designed for fire protection, and obtained 3CF certification for fire products

DXZQ type fire gas top pressure water supply equipment is suitable for water supply of fire protection system. The equipment is mainly composed of air pressure water tank, fire pump control equipment, top pressure gas storage system, decompression release device, etc. This equipment can meet the fire-fighting water supply for 10 minutes under fire conditions without electricity (power) at all. With fire button, fire hydrant, smoke, temperature, pressure, flow and other signals in parallel to start the fire pump interface. Fire pump control equipment has dual power supply and automatic switching function to meet the design requirements of fire extinguishing systems.



Features:

1. The DXZQ fire-fighting gas top-pressure water supply equipment should use qualified products produced by pressure vessel manufacturers in accordance with GB5100 and GB5099, and pneumatic water tanks should use qualified products produced in accordance with GB150 "steel pressure vessels" . According to the requirements of the customer's installation environment, a multi-tank combination can be adopted. Vertical or horizontal tanks are flexible and convenient for customers. Its operating safety should meet the requirements of TSG R0004.

2. The unique normally closed top pressure gas storage system is adopted to solve the problem of easy leakage of the normally open system; this equipment can be provided without high pressure gas supplement equipment to avoid the safety, noise and energy consumption problems caused by it; Maintain the pressure of routine water supply daily on the road to improve safety performance.

是自动气动控制不需要电源执行。 3. The normally closed top pressure gas storage system can also be replaced by a diesel (or motor-driven) twin-screw air compressor, which can ensure the reliability of the equipment, especially when equipped with a diesel-driven twin-screw air compressor. It is used completely without power supply. The other valves are all automatic pneumatic control without power supply.

4. It can realize automatic operation, that is, automatic voltage stabilization and pressure holding, automatic water storage, automatic pressure relief, automatic alarm, and automatic fire protection.

5. The independent closed control system is adopted, and the water level control is not affected by other factors. The pressure control is independent closed control to achieve stable pressure. The low-level gas stop control is adopted to effectively ensure that the gas does not enter the fire pipe network.

动态画面实时监控。 6. The device is controlled by the pressure sensor on the tank and starts and stops the inflation function of the air pump; you can choose to have a touch screen function and a running recorder (including a USB interface). It can also record the pressure of the pipe network in real time and save it regularly. Fault records can also be recorded and can be queried; real-time monitoring of dynamic pictures.

消防装备质量监督检验中心的型式检验,质量符合GB6245-2006《消防泵性能要求和实验方法》。 7. Pneumatic ball valve with feedback signal is used, which is reliable, completely leak-free and water-free; high-pressure gas is also used in two-way pressure high-pressure ball valve, type inspection of fire equipment quality supervision and inspection center, quality in line with GB6245-2006 "fire pump Performance requirements and experimental methods.

震区建设、隐蔽工程、临时建筑和因建筑艺术等要求不宜设置高位水箱的建筑。 9. Type D fire gas top pressure water supply equipment can be used for emergency fire pressure water supply equipment. It can store 10 minutes of fire water consumption and can replace the city's fire water tank. It has the advantages of investment saving, short construction period, easy construction and installation, low maintenance cost and convenience. Realizing the advantages of automatic control, especially suitable for earthquake zone construction, concealed engineering, temporary buildings, and buildings where high water tanks are not suitable due to architectural art requirements.

Model meaning:



Equipment structure:

DXZQ fire gas top pressure water supply equipment includes: control cabinet, electromagnetic gas valve, liquid level sensor, carbon dioxide gas cylinder, display pressure gauge, gas cylinder group and other components.


Product Usage:

DXZQ type fire gas top pressure water supply equipment is used to provide 10 minutes of fire fighting water for Class A fires. It is suitable for public buildings such as hotels, hotels, entertainment venues, stadiums, factories, warehouses, residential quarters, office buildings, etc., and is especially suitable for the inconvenience of setting high water tank Fire-fighting water supply systems for low-rise buildings and light-weight materials, as well as buildings in earthquake zones, concealed works, temporary buildings, and buildings that are not suitable for installation of high water tanks due to architectural art requirements.


working principle:

Start-up and operation of regulator pump system

D4 向气压水罐及系统里灌水,充到一定程度后,关闭 D4 ,启动稳压泵( B1 B2 )继续向系统打水,直至把气压水罐内的水位提高到设定的水位上限即 M1 时,稳压泵(两台一备一用)自动停止,这时如果压力处在系统设定的压力下限 P2 P1 为系统压力上限, P2 为系统压力下限)以下时,汽泵自动向罐内补气直到压力达到设定的稳压系统压力上限 P1 时汽泵停止。 Before starting, first use the pressure of the water source to open D4 and fill the air pressure water tank and system with water. After filling to a certain level, close D4 and start the pressure stabilization pump ( B1 or B2 ) to continue to pump water to the system until the water level in the air pressure water tank When it reaches the set upper limit of water level, that is, M1 , the pressure-stabilizing pump (two units for one reserve and one for use) automatically stops. At this time, if the pressure is at the lower limit of the system set pressure P2 ( P1 is the upper limit of the system pressure, P2 is the lower limit of the system pressure ) In the following cases, the steam pump automatically replenishes the gas in the tank until the pressure reaches the set pressure regulation system pressure upper limit P1 . This is the completion of a voltage stabilization cycle, at which time the entire fire protection system is in a voltage stabilization state. P2 时,磁翻板液位计检测到罐内水位如果下降了,当水位降至设定的水位下限 M2 时,稳压泵系统 (B1 B2) 自动启动,向系统内补水,补到系统设定的水位上限时 M1 ,水泵停止。 When the leakage pressure in the system drops to P2 , the magnetic flap level gauge detects that the water level in the tank has fallen. When the water level drops to the set lower limit of the water level M2 , the voltage stabilization pump system (B1 or B2) automatically starts to Water is replenished in the system. When the water level is set to the upper limit set by the system , the pump stops. D2 自动打开泄压,以保障水能补到设定的水位),如果此时系统压力低于系统设定的压力下限时,这时汽泵自动启动向罐内补气,一直补到系统设定的压力上限 P1 时汽泵停止,如此反复运行以保证稳压系统处在设定的水位( M1-M2 )及压力( P1-P2 )范围内,达到稳压的目的。 (If the pressure in the tank is too high during the replenishment process, that is, it is higher than the set pressure limit of the voltage stabilization system, at this time, the solenoid valve D2 of the pneumatic water tank will automatically open to release the pressure to ensure that the water can make up to the set water level. If the system pressure is lower than the lower pressure limit set by the system at this time, the steam pump will automatically start to supply air to the tank at this time , and the steam pump will stop at the upper pressure set by the system. The system is in the range of set water level ( M1-M2 ) and pressure ( P1-P2 ) to achieve the purpose of voltage stabilization.

 

Cylinder system

The gas cylinder group is equipped with N gas cylinders, and each gas cylinder is connected to a DN25 pipeline through a pipeline. The DN25 pipeline is connected to the top of the pneumatic water tank. The on-off of the pipeline is controlled by the solenoid valve D1. MPa-15MPa, the outlet pressure is set below the lower limit pressure of the system P4 = P3-0.02MPa. Usually, the cylinder system is always in a dormant state, and it is only put into operation when a fire occurs. The working process is that when a fire occurs, the pressure of the voltage stabilization system drops sharply. When it drops to P4, the solenoid valve D1 of the cylinder group opens, and the high-pressure gas in the cylinder group quickly hits the air pressure water tank. Water quickly hits the fire protection pipe to ensure the supply of emergency fire protection water for 10 minutes.


Steam pump system

This system can be equipped with a large steam pump, a large steam pump (2 steam pumps for one reserve and one use). The large steam pump is usually in a dormant state, and it starts only when the small steam pump fails. Usually plays the role of voltage stabilization. Small steam pumps are usually only for voltage stabilization, because the amount of gas used in the process of voltage stabilization is very small, so one large, one small and two steam pumps should be set in the large fire protection system, and one small pump should be set in the small system.


Large and small steam pump working process

The outlet pipe of the steam pump system is connected to the top of the air pressure water tank. Each steam pump outlet is equipped with a check valve to ensure that the pressure-stabilized gas and water will not flow into the steam pump. When the pressure of the voltage stabilization system drops to the set lower limit P2, the small steam pump starts and presses the voltage stabilization system and the pipeline until the pressure stops when the pressure reaches the set upper limit P1 (control range P1-P2 = 0.05MPa), When the small steam pump fails or the pressure drops sharply to P3, the large steam pump starts to complete the voltage stabilization process. This repeated operation ensures that the voltage stabilization system is stable within the set pressure range, and the purposes of standby and voltage stabilization of the large and small steam pumps are achieved.


Fire start process

When a fire accident occurs, the fire protection and sprinkler system pipelines are opened. At this time, the pressure of the voltage stabilization system drops rapidly. When the system drops below P3, that is, P4, the solenoid valve D1 opens quickly, the cylinder system starts immediately, and the high-pressure gas quickly moves to the The pressure in the pneumatic water tank increases instantly. At this time, the high-pressure gas in the system quickly drives water into the fire protection pipeline, ensuring that the 10-minute emergency fire-fighting water quickly enters the fire-fighting system, and the purpose of the fire-fighting emergency water is achieved to ensure the safety of property and people.


Measures to prevent gas from entering fire pipes,

In order to prevent gas from entering the fire-fighting pipeline and ensure the safe use of the fire-fighting pipeline, the system can be equipped with a pneumatic butterfly valve at the exit of the fire-fighting air pressure water tank, which is generally used in the case of long and complicated pipelines. When the water level of the pneumatic water 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 water outlet of the pneumatic water tank. When the water reaches 250mm above the bottom of the tank (when reaching the bottom of the magnetic flap M3 = 50mm), the solenoid valve D3 is opened by the control point on the magnetic flap level gauge, and the pneumatic butterfly valve is closed quickly to ensure that the 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 pneumatic water tank is closed, in order to prevent the system pressure from being too high, there is no pressure switch on the steam pump. There is a safety valve on the pipeline. The pressure limit switch ensures that the steam pump stops when it reaches a certain pressure. When the safety valve actually reaches a certain pressure value, the safety valve is opened to release the pressure, which can ensure the safety of the pipeline and the system.


Measures to prevent water from entering the pump and cylinder system

When the water in the tank reaches the set upper limit of the water level M1, the magnetic flap liquid level gauge controls the water pump to stop.

When the control of the electrical system fails, for safety reasons, this equipment can be equipped with a hydraulic float valve on the water outlet of the regulator pump outlet into the tank. When the water in the tank exceeds the set upper limit of the water level M1, the regulator pump outlet The pipeline is closed immediately, the water level stays 200mm below the top of the tank, and the water level no longer increases, so as to ensure that fire fighting water does not enter the gas pipeline and gas cylinder system.


Pressure setting

Steam pump stop P1 P1-P2 = 0.05MPa

Small steam pump start P2 P2-P3 = 0.02MPa

Big steam pump starts P3 P3-P4 = 0.02MPa

Solenoid valve D1 opens P4 = P3-0.02MPa

P5=P1+0.02MPa Solenoid valve D2 opens P5 = P1 + 0.02MPa

Solenoid valve D3 opens M3 = 50mm


Water level setting in tank

Pump stop water level M1 high water level (manual setting)

Start pump water level M2 low water level (manual setting)

Close butterfly valve M3 = 50mm (manual setting)


Table setting wiring

Electric contact pressure gauge 1 (P1-P2) ----- Small steam pump

Electric contact pressure gauge 2 (P1 P3) ----- connect to big steam pump

Electric contact pressure gauge 3 (P4) --------- connect to D1

Electric contact pressure gauge 4 (P5) --------- connect to D2


Performance parameters:

Model (MPa) Fire pressure (MPa) Pressure regulation   (MPa) Effective volume Pressure tank Number of cylinders   (40L) Regulators pump Air pump Control cabinet
model Number of units model Number of units
DXZQ0.4 / 10-6 P-0.4 P1-0.4 P2-0.45 6 SQW1800-1.0 6 40GDL6-12X4 2 V-0.17 / 8
W / 6/10
1 XZQP-2.2-1 / 1
DXZQ0.5 / 10-6 P-0.5 P1-0.5 P2-0.55 6 SQW1800-1.0 8 40GDL6-12X5 2 1 XZQP-2.2-1 / 1
DXZQ0.6 / 10-6 P-0.6 P1-0.6 P2-0.65 6 SQW1800-1.0 8 40GDL6-12X6 2 1 XZQP-3-1 / 1
DXZQ0.7 / 10-6 P-0.7 P1-0.7 P2-0.75 6 SQW1800-1.6 9 40GDL6-12X7 2 1 XZQP-3-1 / 1
DXZQ0.8 / 10-6 P-0.8 P1-0.8 P2-0.85 6 SQW1800-1.6 9 40GDL6-12X7 2 V-0.13 / 12
W-0.74 / 14
1 XZQP-3-1 / 1
DXZQ0.9 / 10-6 P-0.9 P1-0.9 P2-0.95 6 SQW1800-1.6 12 40GDL6-12X8 2 1 XZQP-4-1 / 1
DXZQ1.0 / 10-6 P-1.0 P1-1.0 P2-1.1 6 SQW1800-1.6 15 40GDL6-12X8 2 1 XZQP-4-1 / 1
DXZQ0.4 / 15-9 P-0.4 P1-0.4 P2-0.45 9 SQW2000-1.0 9 40GDL6-12X4 2 V-0.17 / 8
W-06 / 10
1 XZQP-2.2-1 / 1
DXZQ0.5 / 15-9 P-0.5 P1-0.5 P2-0.55 9 SQW2000-1.0 12 40GDL6-12X5 2 1 XZQP-2.2-1 / 1
DXZQ0.6 / 15-9 P-0.6 P1-0.6 P2-0.65 9 SQW2000-1.0 12 40GDL6-12X6 2 1 XZQP-3-1 / 1
DXZQ0.7 / 15-9 P-0.7 P1-0.7 P2-0.75 9 SQW2000-1.6 15 40GDL6-12X7 2 1 XZQP-3-1 / 1
DXZQ0.8 / 15-9 P-0.8 P1-0.8 P2-0.85 9 SQW2000-1.6 16 40GDL6-12X7 2 V-0.13 / 12.5
W-0.74 / 14
1 XZQP-3-1 / 1
DXZQ0.9 / 15-9 P-0.9 P1-0.9 P2-0.95 9 SQW2000-1.6 18 40GDL6-12X8 2 1 XZQP-4-1 / 1
DXZQ1.0 / 15-9 P-1.0 P1-1.0 P2-1.1 9 SQW2000-1.6 20 40GDL6-12X9 2 1 XZQP-4-1 / 1
DXZQ0.4 / 15-9 P-0.4 P1-0.4 P2-0.45 12 SQW220Q-1.0 12 40GDL6-12X4 2 V-0.13 / 12.5
W-0.9 / 7
1 XZQP-2.2-1 / 1
DXZQ0.5 / 20-12 P-0.5 P1-0.5 P2-0.55 12 SQW220Q-1.0 15 40GDL6-12X5 2 1 XZQP-2.2-1 / 1
DXZQ0.6 / 20-12 P-0.6 P1-0.6 P2-0.65 12 SQW220Q-1.0 16 40GDL6-12X6 2 1 XZQP-3-1 / 1
DXZQ0.7 / 20-12 P-0.7 P1-0.7 P2-0.75 12 SQW220Q-1.6 20 40GDL6-12X7 2 V-0.36 / 7
W-0.74 / 14
1 XZQP-3-1 / 1
DXZQ0.8 / 20-12 P-0.8 P1-0.8 P2-0.85 12 SQW220Q-1.6 twenty four 40GDL6-12X7 2 1 XZQP-3-1 / 1
DXZQ0.9 / 20-12 P-0.9 P1-0.9 P2-0.95 12 SQW220Q-1.6 twenty four 40GDL6-12X8 2 1 XZQP-4-1 / 1
DXZQ1.0 / 20-12 P-1.0 P1-1.0 P2-1.1 12 SQW220Q-1.0 28 40GDL6-12X9 2 1 XZQP-4-1 / 1
DXZQ0.4Z25-15 P-0.4 P1-0.4 P2-0.45 15 SQW240Q-1. 0 15 40GDL6-12X4 2 V-0.36 / 7
W-0.6 / 10
1 XZQP-2.2-1 / 1
DXZQ0.5 / 25-15 P-0.5 P1-0.5 P2-0.55 15 SQW240Q-1. 0 18 40GDL6-12X5 2 1 XZQP-2.2-1 / 1
DXZQ0.6 / 25-15 P-0.6 P1-0.6 P2-0.65 15 SQW240Q-1. 0 20 40GDL6-12X6 2 1 XZQP-3-1 / 1
DXZQ0.7 / 25-15 P-0.7 P1-0.7 P2-0.75 15 SQW240Q-1. 6 twenty four 40GDL6-12X7 2 1 XZQP-3-1 / 1
DXZQ0.8 / 25-15 P-0.8 P1-0.8 P2-0.85 15 SQW240Q-1. 6 28 40GDL6-12X7 2 1 XZQP-3-1 / 1
DXZQ0.9 / 25-15 P-0.9 P1-0.9 P2-0.95 15 SQW240Q-1. 6 30 40GDL6-12X8 2 1 XZQP-4-1 / 1
DXZQ1.0 / 25-15 P-1.0 P1-1.0 P2-1.1 15 SQW240Q-1. 6 36 40GDL6-12X9 2 1 XZQP-4-1 / 1
DXZQ0.4 / 30-18 P-0.4 P1-0.4 P2-0.45 18 SQW240Q-1. 0 20 50GDL12-15X4 2 V-0.36 / 7
W-0.6 / 10
1 XZQP-4-1 / 1
DXZQ0.5 / 30-18 P-0.5 P1-0.5 P2-0.55 18 SQW240Q-1. 0 20 50GDL12-15X4 2 1 XZQP-4-1 / 1
DXZQ0.6 / 30-18 P-0.6 P1-0.6 P2-0.65 18 SQW240Q-1. 0 twenty four 50GDL12-15X5 2 1 XZQP-5.5-1 / 1
DXZQ0.7 / 20-18 P-0.7 P1-0.7 P2-0.75 18 SQW240Q-1. 6 30 50GDL12-15X6 2 1 XZQP-5.5-1 / 1
DXZQ0.8 / 30-18 P-0.8 P1-0.8 P2-0.85 18 SQW240Q-1. 6 32 50GDL12-15X6 2 1 XZQP-5.5-1 / 1
DXZQ0.9 / 30-18 P-0.9 P1-0.9 P2-0.95 18 SQW240Q-1. 6 36 50GDL12-15X7 2 1 XZQP-7.5-1 / 1
DXZQ1.0 / 30-24 P-1.0 P1-1.0 P2-1.1 18 SQW240Q-1. 6 40 50GDL12-15X8 2 1 XZQP-7.5-1 / 1
DXZQ0.4 / 40-24 P-0.4 P1-0.4 P2-0.45 twenty four SQW2600-1. 0 twenty four 50GDL12-15X4 2 V-0.36 / 7
W-0.74 / 14
1 XZQP-4-1 / 1
DXZQ0.7 / 40-24 P-0.7 P1-0.7 P2-0.75 twenty four SQW2600-1. 6 40 50GDL12-15X6 2 1 XZQP-5.5-1 / 1
DXZO1.0 / 40-24 P-1.0 P1-1.0 P2-1.1 twenty four SQW2600-1. 6 54 50GDL12-15X8 2 1 XZQP-7.5-1 / 1
DXZQ0.4 / 50-30 P-0.4 P1-0.4 P2-0.45 30 SQW2800-1. 0 30 50GDL12-15X4 2 V-0.36 / 7
W-0.74 / 14
1 XZQP-4-1 / 1
DXZQ0.7 / 50-30 P-0.7 P1-0.7 P2-0.75 30 SQW2800-1. 6 48 50GDL12-15X6 2 1 XZQP-5.5-1 / 1



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