阅读说明：本技术 一种船舶细水雾水幕灭火喷头 (Water curtain fire extinguishing nozzle for water mist of ship ) 是由 周利 郑思洁 沈中祥 丁仕风 闯振菊 施伟 高俊亮 顾微微 于 2020-05-22 设计创作，主要内容包括：本发明提供了一种船舶细水雾水幕灭火喷头,喷头主体内部的水流流道为流线型圆管通道中间宽两头窄,其中第一出水口比进水口窄,第一出水口外侧设有第三螺纹,进水口外侧设有第一螺纹,喷头主体外侧均布多个高度相同侧出水口,还包括撞环,撞环为一剖面为流线型的圆环设置在侧出水口的轴线上,保证侧出水口喷出的水能够撞上撞环,撞环通过连接桥和六角连接环固定连接,六角连接环通过第二螺纹和喷头主体连接,连接桥的位置与侧出水口的轴线错开。本发明提供的船舶细水雾水幕灭火喷头,具有良好的雾化效果,覆盖范围更广,灭火效果显著,且能阻隔火灾现场烟雾粉尘的扩散。船舶细水雾水幕灭火喷头制作工艺不复杂,经济环保,适用于各类消防场所。(The invention provides a water curtain fire-extinguishing spray head with fine water mist for ships, wherein a water flow channel in a spray head main body is a streamline circular tube channel, the middle of the streamline circular tube channel is wide, the two ends of the streamline circular tube channel are narrow, a first water outlet is narrower than a water inlet, a third thread is arranged on the outer side of the first water outlet, a first thread is arranged on the outer side of the water inlet, a plurality of water outlets with the same height are uniformly distributed on the outer side of the spray head main body, the fire-extinguishing spray head further comprises a collision ring, the collision ring is a circular ring with a streamline section and is arranged on the axis of a side water outlet, water sprayed from the side water outlet can be guaranteed to collide against the collision ring, the collision ring is fixedly connected with a hexagonal connection ring through a. The water curtain fire extinguishing nozzle for the water mist of the ship has the advantages of good atomization effect, wider coverage range and obvious fire extinguishing effect, and can prevent the diffusion of smoke and dust in a fire scene. The manufacturing process of the water mist water curtain fire extinguishing nozzle for the ship is not complex, economic and environment-friendly, and is suitable for various fire-fighting places.)

1. The utility model provides a boats and ships thin water smoke water curtain sprinkler head, includes shower nozzle main part (1), its characterized in that: the water flow channel (1-1) in the sprayer main body (1) is a streamline circular tube channel, the middle of the streamline circular tube channel is wide, the two ends of the streamline circular tube channel are narrow, a first water outlet (1-3) is narrower than a water inlet, the first water outlet (1-3) is positioned under the axis of the sprayer main body (1), a third thread (1-6) is arranged on the outer side of the first water outlet (1-3), the third thread (1-6) is used for being connected with a nozzle (3), a first thread (1-4) is arranged on the outer side of the water inlet, the first thread (1-4) is used for being connected with a water inlet pipeline, a plurality of side water outlets (1-2) are uniformly distributed on the outer side of the sprayer main body (1), the side water outlets (1-2) are positioned at the same height, and the included angle between the central axis of each side water outlet (1-2) and the axis of the sprayer main body (1), the water-saving nozzle is characterized by further comprising a collision ring (2-3), the collision ring (2-3) is a circular ring and is arranged on the axis of the side water outlet (1-2), it is guaranteed that water sprayed out of the side water outlet (1-2) can collide with the collision ring (2-3), the collision ring (2-3) is fixedly connected with the hexagonal connection ring (2-1) through a connection bridge (2-2), the hexagonal connection ring (2-1) is connected with the nozzle body (1) through second threads (1-5), and the position of the connection bridge (2-2) is staggered with the axis of the side water outlet (1-2).

2. The water mist water curtain fire extinguishing sprinkler head for ships according to claim 1, characterized in that: the number of the connecting bridges (2-2) is the same as that of the side water outlets (1-2).

3. The water mist water curtain fire extinguishing sprinkler head for ships according to claim 1, characterized in that: the hexagon of the hexagonal connecting ring (2-1) is a regular hexagon.

4. The water mist water curtain fire extinguishing sprinkler head for ships according to claim 1, characterized in that: the collision ring (2-3) is in the shape of a circular ring with a streamline section at the upper part and the lower part.

5. The water mist water curtain fire extinguishing sprinkler head for ships according to claim 1, characterized in that: the number of the side water outlets (1-2) is 6.

6. The water mist water curtain fire extinguishing head for ships according to any one of claims 1 to 5, wherein: each connecting bridge (2-2) is positioned in the middle of the side line of the hexagonal connecting ring (2-1) and in the middle of two adjacent side water outlets (1-2).

7. The water mist water curtain fire extinguishing head for ships according to any one of claims 1 to 5, wherein: the nozzle (3) comprises a second water outlet (3-1), and the second water outlet (3-1) is communicated with the first water outlet (1-3).

8. The water mist water curtain fire extinguishing head for ships according to any one of claims 1 to 5, wherein: each connecting bridge (2-2), the hexagonal connecting ring (1-2) and the collision ring (2-3) are welded.

9. The water mist water curtain fire extinguishing head for ships according to any one of claims 1 to 5, wherein: the nozzle body (1) is made of 30CrMnSiNi2A alloy structural steel.

10. The water mist curtain fire extinguishing sprinkler head for ships according to claim 9, characterized in that: ZS-1091 high-temperature resistant ceramic insulating paint is sprayed on the outer surface of the sprayer body (1).

Technical Field

The invention belongs to the field of ship fire extinguishing nozzles in the field of fire fighting, and relates to a ship water mist water curtain fire extinguishing nozzle.

Background

The use of fire is a milestone in the human development history, while the threat of uncontrolled fire to humans has always been the focus of attention. The invention of the Halon fire extinguishing agent changes the situation that the fire can not be nearby after being far hydrolyzed. The Halon fire extinguishing agent is also called alkyl halide fire extinguishing agent, and the fire extinguishing principle is as follows: the fire extinguishing agent which captures free radicals and destroys flame contact surfaces achieves good fire extinguishing effect, and the combustion chain is interrupted. And the halon contains chlorine and bromine, so that the ozone layer is damaged in the using process, ozone holes are generated, and the halon can survive in the atmosphere for decades.

For environmental protection, the Montreal protocol was developed in 1987, and 3 of the regulated substances were listed as restrictions on production and consumption in the respective Cisco. Then, the expert scholars turn the attention to the substitute of Halong, and the substitute mainly comprises: a carbon dioxide fire extinguishing system, a halohydrocarbon halon replacement fire extinguishing system, a novel inert gas fire extinguishing system, an aerosol fire extinguishing device and a water mist fire extinguishing system. Compared with other fire extinguishing systems, the water mist fire extinguishing system has the advantages of economy, cleanness, convenience in use, high fire extinguishing efficiency and the like, and is popular with experts and scholars.

The fire extinguishing mechanism of the water mist fire extinguishing system is as follows: high heat absorption, suffocation and radiation heat blocking. The diameter of the fine water mist is very small, so that the fine water mist can be completely evaporated in a fire scene, and therefore, the fine water mist has high heat absorption rate and strong cooling effect. After the water mist is sprayed into a fire scene, the water mist is quickly evaporated to form steam, the volume of the steam is rapidly expanded, air is exhausted, and a barrier is formed around a combustion object to block the suction of fresh air. When the oxygen concentration around the oxygen decreases to a certain level, the flame will be choked and extinguished. The steam formed by the evaporation of the water mist can quickly cover the comburent, the flame and the smoke plume, has excellent blocking capability on the radiant heat of the flame, can effectively inhibit the radiant heat from igniting other surrounding objects, and achieves the effect of preventing the flame from spreading.

The water mist fire extinguishing system is widely applied to various places, but the problems of small atomization angle, unsatisfactory atomization effect and the like of a high-pressure water mist nozzle still exist in the using process of the water mist fire extinguishing system.

Disclosure of Invention

1. The technical problem to be solved is as follows:

the problems of small atomization angle, unsatisfactory atomization effect and the like of a high-pressure water mist nozzle exist in the using process of the water mist fire extinguishing system.

2. The technical scheme is as follows:

in order to solve the problems, the invention provides a water mist water curtain fire-extinguishing spray head for ships, which comprises a spray head main body, wherein a water flow channel in the spray head main body is a streamline annular channel, the middle of the water flow channel is wide, the two ends of the water flow channel are narrow, a first water outlet is narrower than a water inlet, the first water outlet is positioned right below the axis of the spray head main body, a third thread is arranged on the outer side of the first water outlet and is used for being connected with a nozzle, a first thread is arranged on the outer side of the water inlet and is used for being connected with a water inlet pipeline, a plurality of side water outlets are uniformly distributed on the outer side of the spray head main body and are positioned at the same height, the included angle between the central axis of each side water outlet and the axis of the spray head main body is 80-90 degrees, and the collision ring is a circular ring arranged on the axis of the side water outlets and ensures that water sprayed from the side water outlets can collide with, the collision ring is fixedly connected with the hexagonal connecting ring through a connecting bridge, the hexagonal connecting ring is connected with the nozzle body through a second thread, and the position of the connecting bridge is staggered with the axis of the side water outlet.

The number of the connecting bridges is the same as that of the side water outlets.

The hexagon of the hexagonal connecting ring is a regular hexagon.

The collision ring is in the form of a circular ring with a streamline section at the upper part and the lower part.

The number of the side water outlets is 6.

Each connecting bridge is positioned in the middle of the side line of the hexagonal connecting ring and positioned in the middle of two adjacent side water outlets.

The nozzle comprises a second water outlet, and the second water outlet is communicated with the first water outlet.

And each connecting bridge, the hexagonal connecting ring and the striker ring are welded.

The sprayer body is made of 30CrMnSiNiA alloy structural steel.

The spray head main body is sprayed with ZS-1091 high-temperature resistant ceramic insulating paint.

3. Has the advantages that:

the water curtain fire extinguishing nozzle for the water mist of the ship has the advantages of good atomization effect, wider coverage range and obvious fire extinguishing effect, and can prevent the diffusion of smoke and dust in a fire scene. The manufacturing process of the water mist water curtain fire extinguishing nozzle for the ship is not complex, economic and environment-friendly, and is suitable for various fire-fighting places.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural view of the head main body.

Fig. 3 is a schematic view of a striker structure.

Fig. 4 is a sectional view of the head main body.

Fig. 5 is a cross-sectional view of the striker structure.

Fig. 6 is a cross-sectional view of a nozzle structure.

Fig. 7 is a diagram of the fire extinguishing effect.

Description of reference numerals: 1. a nozzle body; 2. a collision ring structure; 3. a nozzle; 1-1 water flow channel; 1-2 side water outlets; 1-3 a first water outlet; 1-4 first threads; 1-5 second threads; 1-6 third threads; 2-1 hexagonal connecting rings; 2-2 connecting bridges; 2-3, knocking a ring; 3-1, a second water outlet.

Detailed Description

The present invention will be described in detail below with reference to the drawings and examples.

As shown in fig. 1-5, a water mist water curtain fire extinguishing nozzle for a ship comprises a nozzle body 1, wherein a water flow channel 1-1 inside the nozzle body 1 is a streamline circular tube channel, the middle of the streamline circular tube channel is wide, the two ends of the streamline circular tube channel are narrow, a first water outlet 1-3 is narrower than a water inlet, and the first water outlet 1-3 is located right below the axis of the nozzle body 1. The water flow channel 1-1 is a streamline annular channel, so that the advancing resistance of high-pressure water flow is greatly reduced.

The outer side of the first water outlet 1-3 is provided with third threads 1-6, the third threads 1-6 are used for being connected with a nozzle 3, the outer side of the water inlet is provided with first threads 1-4, the first threads 1-4 are used for being connected with a water inlet pipeline, and the first threads 1-4 are interfaces between a sprayer and a system pipeline. The first threads 1-4 are connected with the system pipeline, so that the manufacturability can be reduced, and the strength of the structure is not influenced.

A plurality of side water outlets 1-2 are uniformly distributed on the outer side of the nozzle body 1, and the side water outlets 1-2 are located at the same height. The angle between the central axis of each side water outlet 1-2 and the axis of the nozzle body 1 is 80-90 degrees, the nozzle further comprises a collision ring 2-3, the collision ring 2-3 is a circular ring arranged on the axis of the side water outlet 1-2, so that water sprayed from the side water outlet 1-2 can collide with the collision ring 2-3, the collision ring 2-3 is fixedly connected with a hexagonal connection ring 2-1 through a connection bridge 2-2, and the hexagonal connection ring 2-1 is connected with the nozzle body 1 through a second thread 1-5. The hexagonal connecting ring 2-1, the connecting bridge 2-2 and the collision ring 2-3 form a collision ring structure 2.

The second threads 1-5 are the connection part of the spray head main body 1 and the collision ring structure 2. The connecting problem of the nozzle body 1 and the collision ring structure 2 is ingeniously solved by the second threads 1-5, the nozzle body 1 and the collision ring structure 2 are more convenient to assemble, the relative position of the collision ring structure 2 and the nozzle body 1 cannot be changed in the process of water atomization and water curtain formation, and the impact angle can be conveniently controlled.

The position of the connecting bridge 2-2 is staggered with the axis of the side water outlet 1-2. Ensuring that the water flow does not directly act on the connecting bridge 2-2.

The hexagonal connecting ring 2-1 is in a regular hexagon, so that the nozzle body 1 and the collision ring structure 2 can be screwed down conveniently.

The collision ring 2-3 is connected with the connecting bridge 2-2 in a welding mode. The collision ring 2-3 is in the form of a circular ring with a streamline upper part and a streamline lower part, and can guide the dispersion angle of a water curtain generated by collision, thereby expanding the coverage range of water mist and the water curtain.

As shown in fig. 6, the nozzle 3 includes a second water outlet 3-1, the water outlet 3-1 is directly communicated with the water outlet 1-3, and the water outlet 3-1 may adopt different structural forms, such as different cross-sectional shapes of small water outlets and different numbers of small water outlets.

The sprayer body 1 is made of 30CrMnSiNi2A alloy structural steel, and the 30CrMnSiNi2A alloy structural steel is subjected to heat treatment, so that the sprayer has high strength, good plasticity and toughness, fatigue resistance, fracture toughness and low fatigue crack propagation rate.

ZS-1091 high-temperature resistant ceramic insulating paint is sprayed on the outer surface of the sprayer body 1. The ZS-1091 high-temperature resistant ceramic insulating paint can resist the high temperature of 1700 ℃, has compact coating and high hardness, can be coated on various inorganic materials, is insulated at high temperature and can shield current.