Shanghai high pressure water mist closed nozzle

There are many types of water mist nozzles, among which high-pressure water mist closed nozzles are more widely used. There are many models and specifications of Shanghai's high-pressure water mist closed nozzles. Usually, customers can customize the model and size they need according to the application scenario. The price of Shanghai high-pressure water mist closed nozzles ranges from more than 100 to more than 200, depending on the actual quotation of each manufacturer. The following is a Shanghai high-pressure water mist closed nozzlemodel、Specification、parameter、principle、price、factory、effectas well asaddressand other related content.

1. Shanghai high pressure water mist closed sprinkler model

There are many types of high-pressure water mist closed nozzles in Shanghai. Their main composition is: nozzle type + working pressure + flow coefficient + glass bulb temperature and size, such as XSW-T1.0/10-57°Cφ2, where The following are the conventional models of Shanghai high-pressure water mist closed sprinklers:

1. XSW-T1.2/10-57°Cφ2: Flow coefficient is 1.2, minimum working pressure is 10Mpa, glass ball temperature is 57 degrees, fine water mist closed nozzle with diameter of 2mm

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3. XSW-T1.7/10-57°Cφ2: Flow coefficient is 1.7, minimum working pressure is 10Mpa, glass ball temperature is 57 degrees, fine water mist closed nozzle with diameter of 2mm

4. XSW-T2.0/10-57°Cφ2: Flow coefficient is 2.0, minimum working pressure is 10Mpa, glass ball temperature is 57 degrees, fine water mist closed nozzle with diameter of 2mm

5. XSW-T2.5/10-57°Cφ2: Flow coefficient is 2.5, minimum working pressure is 10Mpa, glass ball temperature is 57 degrees, fine water mist closed nozzle with diameter of 2mm

6. XSW-T3.0/10-57°Cφ2: Flow coefficient is 3.0, minimum working pressure is 10Mpa, glass ball temperature is 57 degrees, fine water mist closed nozzle with diameter of 2mm

7. XSW-T3.5/10-57°Cφ2: Flow coefficient is 3.5, minimum working pressure is 10Mpa, glass ball temperature is 57 degrees, fine water mist closed nozzle with diameter of 2mm

8. XSW-T4.0/5-57°Cφ2: Flow coefficient is 4.0, minimum working pressure is 5Mpa, glass ball temperature is 57 degrees, fine water mist closed nozzle with diameter of 2mm

9. XSW-T4.5/5-57°Cφ2: Flow coefficient is 4.5, minimum working pressure is 5Mpa, glass ball temperature is 57 degrees, fine water mist closed nozzle with diameter of 2mm

10. XSW-T5.0/5-57°Cφ2: Flow coefficient is 5.0, minimum working pressure is 5Mpa, glass ball temperature is 57 degrees, fine water mist closed nozzle with diameter of 2mm

11. XSW-T5.5/5-57°Cφ2: Flow coefficient is 5.5, minimum working pressure is 5Mpa, glass ball temperature is 57 degrees, fine water mist closed nozzle with diameter of 2mm

2. Specifications of Shanghai high-pressure water mist closed nozzle

The specifications and sizes of Shanghai's high-pressure water mist closed nozzles can be customized. After all, the specifications and sizes will change due to different installation methods and installation environments, so the sizes can generally be customized according to customer needs. The specifications of Shanghai high-pressure water mist closed nozzles include the size of the interface thread, the size of the nozzle aperture, the diameter of the nozzle, etc., which will normally be clearly marked on the assembly drawings.

1. Common interface thread sizes include: M12X1; M18X1.5; M16X1.5; M20X1.5, etc.

2. Common nozzle diameter specifications include: D37.5; D40; D38; D43; D43.5, etc.

3. Common nozzle heights include: H50; H35.5; H37.6; H37; H38; H54.8; H52.5, etc.

3. Shanghai high pressure water mist closed sprinkler parameters

There are many parameters involved in Shanghai high-pressure water mist closed nozzles, among which the more important ones are working pressure, flow rate or flow coefficient, temperature and size of the glass ball, nozzle interface size, material, etc. These are what customers must provide when purchasing or customizing. Of course, if you want to produce a more suitable high-pressure water mist closed nozzle, the more specific parameters you provide, the higher the applicability of the produced nozzle will be. The performance parameters of Shanghai high-pressure water mist closed nozzles are as follows:

① Working pressure: The mist droplets formed by high-pressure fine water mist nozzles are finer than those of medium and low-pressure water mist, and the flow rate is smaller.

②Flow rate: refers to the total amount of mist particles ejected by the nozzle per unit time. The flow rate depends on the cross-sectional area of ​​the nozzle and the flow rate of the water.

③Particle size (droplet size) distribution: usually calculated using a function.

④Fog particle characteristic quantity: In practical applications, the volume average particle size is often used to measure the fog particle characteristic quantity.

⑤ Momentum of fog particles: It is determined by the diameter of fog particles. The amount of momentum determines the fire extinguishing performance.

⑥Spray angle: The size of the spray angle will affect the height and protection range of the nozzle we install. Nozzles with small spray angles are installed in places with high heights and concentrated combustion areas. The size of the spray angle is determined by the nozzle structure design.

⑦ Range: The range is directly related to the momentum of fog particles. The range determines the installation height of the nozzle.

⑧Protection diameter: refers to the diameter of the circle covered by mist droplets in a plane 1 meter away from the bottom of the nozzle.

4. Principle of Shanghai high-pressure water mist closed sprinkler

Shanghai high-pressure water mist closed nozzle is composed of nozzle body, nozzle, nozzle core, glass ball and filter. After water under a certain pressure enters the nozzle through the nozzle filter, the pressure water is sprayed out from the nozzle hole at high speed, causing strong friction with the surrounding air, and the water flow is torn, thus forming a fine water mist sprayed at a certain angle.

Working principle of closed wet system:

Under quasi-working conditions, the high-pressure water mist fire extinguishing system maintains a certain pressure from the outlet of the pump unit to the pipe network in front of the nozzle. When the temperature of the glass bubble of the closed nozzle reaches the operating temperature, the glass bubble breaks and the pipeline pressure drops. When the pressure is lower than the set starting pressure of the pressure-stabilizing pump, the pressure-stabilizing pump starts to maintain a stable pressure in the system pipe network. When the pressure-stabilizing pump runs for more than a certain period of time and the pipe network pressure is still not reached, the main pump starts and the pressure-stabilizing pump stops. The flow switch feeds back the spray signal of the system. After receiving the feedback signal, the host computer turns on the spray indicator light.

5. Shanghai high-pressure water mist closed sprinkler price

Reference price: 200~240 yuan/piece

The price of Shanghai high-pressure water mist closed sprinklers is more expensive than ordinary fire sprinklers. After all, its scope of application and fire-extinguishing effect are beyond the reach of ordinary sprinklers. Moreover, the structural design of high-pressure water mist closed nozzles is relatively complex. The market price of glass balls alone is as high as about one hundred yuan, so the price of high-pressure water mist closed nozzles is naturally not too low.

6. Shanghai high-pressure water mist closed nozzle manufacturer

There are many good water mist nozzle manufacturers in Shanghai. Some provide separate water mist nozzles, and some provide integrated water mist systems. It depends on the customer's own needs. As a water mist manufacturer, Lanzhong Electromechanical has a wide range of products, including water mist nozzles, water mist guns, fire pumps, etc., which can meet the needs of different customers. Its products have been widely used in the market and are deeply trusted by many companies.

Click to view:Shanghai fine water mist nozzle manufacturer

7. Function of Shanghai high-pressure water mist closed nozzle

High-pressure water mist closed nozzles can cool fire plumes through fine mist droplets, isolate water vapor from oxygen, and weaken radiant heat to control and extinguish fires. Shanghai high-pressure water mist closed nozzles are usually suitable for the following scenarios:

(1) Class A fire; such as: solid dangerous places such as archives, libraries, museums, cultural relics halls and ancient buildings.

(2) Class B fire; such as: hydraulic stations, lubricating oil depots, turbine oil depots, diesel generator rooms, spray paint and baking production lines, fuel boiler rooms, liquor and alcohol and other flammable liquid fire hazard places.

(3) Class C fire; such as combustible gas places in gas turbine rooms, gas direct-fired engine rooms, etc.

(4) Fires in live equipment; such as: oil-immersed power transformers, power distribution rooms, oil switch cabinet rooms, generator rooms, boiler rooms, computer rooms, communication rooms, central control rooms, large cable rooms, cable tunnels (corridors), power transformation and distribution rooms and other electrical equipment fire hazard places.

(5) Fires in other dangerous places where water mist fire extinguishing systems are suitable. Such as: large shopping malls, subway stations, terminals, hospitals, cultural and sports venues, parking lots, underground spaces and other crowded public places.

8. Shanghai high-pressure water mist closed sprinkler address

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Shanghai’s high-pressure water mist closed nozzles have many models and sizes. Some conventional fine water mist nozzles can meet the application needs of most occasions. For special scenes, customers can also find manufacturers to customize them according to the situation. Lanzhong Electromechanical has the ability to design and produce different types of high-pressure water mist closed nozzles, and provides customers with customized services for fine water mist nozzles. If necessary, you can directly consult online.

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