Atomizing fire nozzle

Abstract

The application discloses an atomized fire-fighting nozzle, which is characterized in that the atomized fire-fighting nozzle comprises a nozzle body, a flow distribution disc and a baffle, wherein the nozzle body comprises a flow guide groove, a pressure boosting cavity, a connecting hole and a water storage cavity; the flow distribution disc comprises a high-pressure nozzle hole which penetrates through the flow distribution disc. The atomized fire-fighting nozzle can meet the large-flow and uniform atomization spraying mode, the variable-diameter pipeline design is used in the internal flow guide groove, the water pressure is automatically balanced under high pressure, the range and the diffusion uniformity are enhanced, the design of the pressure boosting cavity and the baffle can enhance the mixing of air, water flow and fire extinguishing agent, and the superfine water mist is formed through shearing action. According to the application, the size of the integrally formed nozzle body can be flexibly adjusted according to the use scene, and the atomized fire-fighting nozzle has wide application scenes.

Description

Technical Field

[0001] This application relates to the field of fire protection equipment technology, specifically to a high-efficiency atomizing fire nozzle based on the coordinated control of a diverter plate and a baffle. Background Technology

[0002] Traditional fire nozzles generally suffer from an inverse relationship between atomization and flow rate (i.e., good atomization occurs with low flow rates, and high flow rates result in poor atomization), failing to meet the requirements of high-flow-rate and uniform atomization spray patterns. Furthermore, existing atomizing nozzles are prone to clogging by impurities, threatening fire extinguishing efficiency. Utility Model Content

[0003] To address the problems existing in the above-mentioned fire extinguishing process, this application provides a high-efficiency, high-flow-rate atomizing fire nozzle that can form ultra-fine water mist under high flow conditions, thereby achieving efficient fire extinguishing.

[0004] The technical solution of this application is as follows: A kind of atomizing fire nozzle, characterized in that the atomizing fire nozzle includes a nozzle body, a flow divider and a baffle, wherein the nozzle body includes a flow guide groove, a pressurizing chamber, a connecting hole and a water storage chamber; the flow divider includes a high-pressure nozzle orifice, the high-pressure nozzle orifice penetrating the flow divider.

[0005] According to one specific embodiment of this application, the diverter plate is connected to the nozzle body through the connecting hole, and the high-pressure nozzle is connected to the water storage chamber.

[0006] According to one specific embodiment of this application, the nozzle body includes 2 to 10 guide grooves, which connect the water storage chamber and the pressurization chamber.

[0007] According to one specific embodiment of this application, the baffle is connected to the nozzle body, and the axis passing through the center of the high-pressure nozzle does not intersect the baffle.

[0008] According to one specific embodiment of this application, the axis extending through the center of the guide groove intersects with the flow divider and / or the baffle.

[0009] According to one specific embodiment of this application, the guide groove is arranged in parallel inside the nozzle body and symmetrically arranged around the connecting hole.

[0010] According to one specific embodiment of this application, the guide channel is a variable diameter pipe.

[0011] According to one specific embodiment of this application, the pressurization chamber is one or more of the following shapes: cylindrical, frustum-shaped, and conical.

[0012] According to one specific embodiment of this application, the outlet of the guide channel is spaced at a given distance from the flow divider.

[0013] According to one specific embodiment of this application, a quick-connect structure is also included, wherein the nozzle body and the quick-connect structure are connected by a connecting sleeve.

[0014] The beneficial effects of this application are as follows: The atomizing fire nozzle provided in this application can meet the requirements of high flow rate and uniform atomization spray mode. The internal guide channel uses a variable diameter pipe design to automatically balance water pressure under high pressure, enhance the range and diffusion uniformity. The design of the pressurization chamber and baffle can enhance the mixing of air, water flow and extinguishing agent, and form an ultra-fine water mist through shearing action.

[0015] The atomizing fire nozzle provided in this application allows for flexible adjustment of the integrally molded size of the nozzle body according to the usage scenario, making it flexible to install and applicable to a wide range of scenarios. Attached Figure Description

[0016] The accompanying drawings are provided to better understand this application and do not constitute an undue limitation thereof. Wherein: Figure 1 This is a schematic diagram of the appearance of the atomizing fire nozzle of this application.

[0017] Figure 2 for Figure 1 A cross-sectional view of the atomizing fire nozzle of this application.

[0018] Figure 3 for Figure 1 and Figure 2 The disassembled cross-sectional view of the atomizing fire nozzle of this application is shown in the figure.

[0019] Figure 4 This is a cross-sectional schematic diagram of a pressurization chamber of the atomizing fire nozzle of this application.

[0020] Among them, 1 is the nozzle body, 2 is the flow divider, 3 is the baffle, 4 is the fixing part, 5 is the thread, 6 is the connecting sleeve, 11 is the flow guide groove, 12 is the pressurization chamber, 13 is the connecting hole, 14 is the water storage chamber, 15 is the quick connection structure, 21 is the high pressure spray hole, and 41 is the fixing hole. Detailed Implementation

[0021] The present application is further illustrated below with reference to embodiments. It should be understood that the embodiments are only used to further illustrate and explain the present application and are not intended to limit the present application.

[0022] The embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. The detailed description and drawings of the following embodiments are used to illustrate the principles of this application by way of example, but should not be used to limit the scope of this application, that is, this application is not limited to the described embodiments. In the description of this application, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," etc., indicating orientation or positional relationship are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. In addition, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application depending on the specific circumstances.

[0024] This application provides an atomizing fire nozzle, characterized in that the atomizing fire nozzle comprises a nozzle body 1, a flow divider 2, and a baffle 3, wherein the nozzle body 1 comprises a flow guide groove 11, a pressurizing chamber 12, a connecting hole 13, and a water storage chamber 14. In one embodiment of this application, the nozzle body 1 may further comprise a quick-connect structure 15 and a connecting sleeve 6.

[0025] As can be seen from the attached drawings, the diverter plate 2 has a "T" shaped structure, with a disc at the top and the rest being non-disc parts (for example, it can be a threaded cylinder, or the diverter plate can be regarded as a large bolt or screw). The diverter plate 2 includes a high-pressure nozzle 21, which penetrates the diverter plate 2. The high-pressure nozzle 21 can be cylindrical or a variable-diameter pipe. For example, the inner diameter of the high-pressure nozzle 21 at the end furthest from the disc (also known as the inlet of the high-pressure nozzle) is larger than the inner diameter at the end closest to the disc (also known as the outlet of the high-pressure nozzle). The outlet of the high-pressure nozzle 21 is located at the center of the disc. With this design, the water flowing through the high-pressure nozzle 21 will have gradually increasing water pressure, giving the water flowing out of the outlet a higher initial velocity. The water can be sprayed or even precisely sprayed to a farther place, which is particularly advantageous in long-distance fire extinguishing or in application scenarios where a certain safe distance must be maintained (such as fire extinguishing in high-rise buildings or fire extinguishing of potentially explosive hazardous materials).

[0026] In one embodiment of this application, the diverter plate 2 is connected to the nozzle body 1 via the connecting hole 13, and the high-pressure nozzle 21 is connected to the water storage chamber 14. For example, the non-disc portion of the diverter plate 2 can be embedded in the connecting hole 13, and / or the diverter plate 2 is connected to the nozzle body 1 via threads 5 (not shown) on the diverter plate 2 and the connecting hole 13. It should be understood that since the high-pressure nozzle 21 penetrates the diverter plate 2, the high-pressure nozzle 21 is connected to the water storage chamber 14, allowing water to flow from the water storage chamber 14 into the high-pressure nozzle 21 under water pressure.

[0027] In one embodiment of this application, the nozzle body 1 includes a plurality of guide channels 11, which connect the water storage chamber 14 and the pressurization chamber 12. The guide channels 11 are arranged parallel to each other inside the nozzle body 1 and are symmetrically arranged around the connecting hole 13.

[0028] It should be understood that, such as Figure 3 As shown, when observing the flow guide 11 from the direction of the flow divider 2, what is actually observed is the outlet of the flow guide 11. The outlet of the flow guide 11 is located on a circular plane, and the center of this circular plane is the connecting hole 13, which is used to accommodate a part of the flow divider 2 embedded therein. The number of the flow guide 11 can be 2 to 10 or more, for example, 2, 3, 4, 5, 6, 7, 8, 9, or 10. It should be understood that the flow guide 11 can be arranged symmetrically or at equal intervals around the connecting hole 13.

[0029] In one embodiment of this application, the guide channel 11 is a variable diameter pipe. For example, the inner diameter of the guide channel 11 at its inlet (the end near the water storage chamber 14) is larger than that at its outlet (the end near the pressurization chamber 12). In this case, the guide channel 11... Figure 3 The cross-section shown is trapezoidal (i.e., the guide channel 11 is frustum-shaped). It should be understood that the shape of the guide channel 11 can also be cylindrical (non-diameter pipe).

[0030] In one embodiment of this application, the variable diameter conduit includes the frustum shape, conical shape, and can also be a bullet shape or other three-dimensional shape that produces a change in inner diameter.

[0031] In one embodiment of this application, the pressurizing chamber 12 is one or more of the following shapes: cylindrical, frustum-shaped, and conical. For example, as... Figure 2 As shown, it is possible Figure 2 The pressurization chamber 12 is frustum-shaped, and the outlet of the guide channel 11 is located on the "upper bottom surface of the frustum (i.e., the bottom surface with a smaller circular area)". In one embodiment of this application, for example, as... Figure 4As shown, the pressurization chamber 12 is conical. It should be understood that, although... Figure 4 It is not shown in the diagram, but the outlet of the guide channel 11 may or should be located on the conical surface (i.e. Figure 4 (At the slanted black lines).

[0032] In one embodiment of this application, the nozzle body 1 is generally cylindrical. In another embodiment, as shown in the attached... Figure 1 As shown, the side surface (cylindrical side surface) of the nozzle body 1 can be flat, which facilitates the installation of the baffle 3.

[0033] In one embodiment of this application, the baffle 3 is connected to the nozzle body 1, and the axis passing through the center of the high-pressure nozzle 21 does not intersect with the baffle 3. (See attached...) Figure 2 and attached Figure 3 As shown, the baffle 3 and the nozzle body 1 are connected by a fastener 4. The fastener 4 passes through the baffle 3 and matches a fixing hole 41 inside the nozzle body 1. In one embodiment of this application, the fastener 4 can be one or more of the following fixing methods: bolt, screw, rivet, and snap-fit. It should be understood that the fixing hole 41 can be a structure that matches the fastener 4. For example, when the fastener 4 is a screw, the surfaces of the fastener 4 and the fixing hole 41 can have matching threads. The fixing hole 41 is located on the nozzle body. It should be understood that the presence of the fixing hole 41 does not affect the guide groove 11, that is, the fixing hole 41 does not contact or overlap with the guide groove 11.

[0034] like Figure 1-3 As shown, the baffle 3 is a metal sheet that has been bent twice, as... Figure 2 As shown, the left side of the baffle 3 ( Figure 2 The baffle 3 is fixed to the nozzle body 1 by the fastener 4 in the direction of the baffle 3. After the right side of the baffle 3 is folded, the distance between them becomes shorter (the distance between the two baffles 3 becomes closer), but they do not contact each other at the closest point and still leave a certain gap. When the nozzle of this application is in working state, the water jet from the high pressure nozzle 21 preferably passes through the above-mentioned gap and does not contact the baffle.

[0035] In one embodiment of this application, the number of baffles 3 can be 2 to 6, for example, 2, 3, 4, 5, or 6, all of which are installed or connected to and fixed on the nozzle body 1 and around the nozzle body 1. Those skilled in the art can also flexibly choose the number of baffles according to the needs of the art.

[0036] It should be understood that, in one embodiment of this application, the water flow ejected from the high-pressure nozzle 21 and / or the guide channel 11 will ideally be considered as a straight line. Furthermore, it should be understood that the shape defined by the high-pressure nozzle 21 and / or the guide channel 11 can be cylindrical, in which case the line connecting the centers of the circles on the two bases of the cylinder is called the axis. In another embodiment of this application, the shape defined by the high-pressure nozzle 21 and / or the guide channel 11 can also be frustum-shaped, in which case the line connecting the centers of the circles on the two bases of the frustum-shaped cylinder is also called the axis. In yet another embodiment of this application, the shape defined by the high-pressure nozzle 21 and / or the guide channel 11 can also be conical, in which case the line connecting the apex of the cone and the center of the circles on the base is also called the axis. The straight line containing this axis is the straight line defined by the water flow ejected from the high-pressure nozzle 21 and / or the guide channel 11.

[0037] In one embodiment of this application, when the guide channel 11 is cylindrical, frustum-shaped, or conical, the axis of the guide channel 11 is parallel to the axis of the high-pressure nozzle 21. That is, the water flow sprayed from the outlet of the guide channel 11 and the water flow sprayed from the high-pressure nozzle 21 are ideally parallel.

[0038] In one embodiment of this application, the guide groove 11 may also be oblique cylindrical (the axis is not perpendicular to the circular bottom surface), in which case the axis of the guide groove 11 is not parallel to the axis of the high-pressure nozzle 21.

[0039] In one embodiment of this application, the outlet of the guide channel 11 is circular with a diameter of 2 to 10 mm, for example, it can be 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, or 10 mm.

[0040] like Figure 2 and Figure 4 As shown, the outlet of the guide channel 11 is spaced at a given distance from the distribution plate 2. High-pressure water flows along the axis of the guide channel 11. When the high-pressure water is ejected from the guide channel 11, it should be understood that the water will directly contact the distribution plate 2, and its trajectory will subsequently change. Most of the water will refract and bounce back to contact the pressurization chamber 12. Through contact and collision with the distribution plate 2 and the pressurization chamber 12, the high-speed water flow breaks into multiple tiny droplets, which move according to the shape defined by the pressurization chamber 12, and then contact the baffle 3 for further collision. In this process, both the pressurization chamber 12 and the baffle 3 serve to limit the trajectory of the water flow (droplets), transforming the linear jet of a single or multiple water streams into a surface jet similar to a water mist or umbrella.

[0041] In one embodiment of this application, when the high-pressure water jet is ejected from the guide channel 11, it may not directly contact the diverter plate 2. In this case, the high-pressure water jet will strike the baffle plate 3, thereby enhancing the mixing with air under the shearing action of the water jet and forming an ultra-fine water mist.

[0042] It should be understood that, such as Figure 1 and Figure 3 As shown, the baffles 3 are located on the right side, gradually approaching each other before bending and extending away from each other. After being ejected from the guide channel 11, the high-pressure water stream contacts the pressurization chamber or baffles 3 in the manner described above. It then moves along a trajectory defined by the shape of the baffles 3. At the bend of the baffles 3 (where the baffles are closest), two or more water streams (droplets) come into contact, and subsequently, along the structure of the baffles 3 extending away from each other, an umbrella-shaped water mist can be formed. In this case, the high-pressure nozzle 21 may disrupt the water mist structure; therefore, in one scenario, the high-pressure nozzle 21 may not be present.

[0043] Therefore, it can be understood that the axis extending through the center of the guide groove 11 intersects with the diverter plate 2 and / or the baffle plate 3.

[0044] Since the diverter plate 2 and the nozzle body 1 are two independent parts that can be connected by threads, the relative positions of the diverter plate 2 and the nozzle body 1 can be adjusted (for example, the threads can be rotated to half-fit, two-thirds fit, or fully fit) so that the water flow from the outlet of the guide channel 11 hits the diverter plate 2 with different intensities, and then is reflected at different angles and intensities inside the pressurization chamber 12, thereby producing water mist surfaces of different sizes.

[0045] In one embodiment of this application, the nozzle body 1 further includes a quick-connect structure 15, which is connected to the nozzle body 1 via a connecting sleeve 6 (e.g., via threads 5). The quick-connect structure 15 has a hollow internal pipe, through which water flows into the water storage chamber 14 inside the nozzle body 1. The outer surface of the quick-connect structure 15 may have raised and / or recessed contours that can match the connecting sleeve 6 and / or the nozzle body 1, such as... Figure 2 As shown. In addition, the quick-connect structure 15 may also include a rubber ring to further enhance the sealing performance of the nozzle body 1, the quick-connect structure 15, and the connecting sleeve 6.

[0046] The end of the quick-connect mechanism 15 furthest from the nozzle body 1 is also provided with a thread 5, allowing the quick-connect mechanism 15 to be connected to an external water source pipe. It should be understood that the thread 5 here can also be replaced with other connection forms, such as bolts, flanges, etc., allowing the quick-connect mechanism 15 to be connected to or installed on water source pipes of various forms, thicknesses, and sizes. For example, the quick-connect mechanism 15 and the atomizing fire nozzle can be made large enough to be connected to fire pipes (such as fire water pipes or fire trucks, or connected to fire hydrants through pipes), or the quick-connect mechanism 15 and the atomizing fire nozzle can be made small enough to be applied to the ceiling of a room as a fire sprinkler head.

[0047] In one embodiment of this application, the quick-connect mechanism 15 can also be a T-junction structure. For example, one end of the T-junction is connected to a gas pipeline, and the other end is connected to a liquid pipeline, both of which enter the quick-connect mechanism 15 and then the water storage chamber 14. Alternatively, one end of the T-junction is connected to a fire extinguishing agent (e.g., a penetrant and flame retardant, such as a phosphate or silicate solution), and the other end is connected to a liquid pipeline, both of which enter the quick-connect mechanism 15 and then the water storage chamber 14.

[0048] In one embodiment of this application, the nozzle body 1 is integrally formed using a high-temperature resistant alloy. In another embodiment of this application, the nozzle body 1, the quick-connect mechanism 15, and the connecting sleeve 6 are integrally formed, in which case an additional rubber ring may not be required for internal waterproof sealing.

[0049] When using, install all parts according to the instructions. Figure 3 As shown, the assembly is performed, and the quick-connect mechanism 15 is connected to an external pipe away from the diversion plate 2. The external pipe can contain water or a mixture of water and extinguishing agent. The liquid in the external pipe enters the water storage chamber 14 via the quick-connect mechanism as a buffer. Then, under pressure, the liquid enters the guide channel 11 and the high-pressure nozzle 21. The liquid ejected from the guide channel 11 hits the diversion plate 2 and is refracted and rebounded, and further hits the pressurization chamber 12. Subsequently, the pressurization chamber 12 and the baffle 3 jointly limit the movement path of the sprayed water flow. The liquid ejected from the high-pressure nozzle 21 will not contact the baffle 3 and will be ejected. When the liquid ejected from the outlet of the guide channel 11 hits the baffle 3, it is also refracted and rebounded. The baffle 3 limits the movement path of the sprayed water flow.

[0050] The atomizing fire nozzle provided in this application can meet the requirements of high flow rate and uniform atomization spray mode. The internal guide channel uses a variable diameter pipe design to automatically balance water pressure under high pressure, enhancing the range and diffusion uniformity. The design of the pressurization chamber and baffles can enhance the mixing of air, water flow and extinguishing agent, forming an ultra-fine water mist through shearing action. The atomizing fire nozzle provided in this application can flexibly adjust the size of the nozzle body according to the application scenario, and has a wide range of applications. For example, in the case of small size, this application can be mass-produced using a one-piece molding method and applied to multi-room application scenarios such as hotel rooms or offices, or used as a fire sprinkler for fire water pipes in the roof of large-area warehouses and factories; or in the case of large size, the atomizing fire nozzle provided in this application can be assembled in the form of components, and the components can be flexibly adjusted according to actual needs, such as the number of baffles, the shape of the pressurization chamber, the quick connection mechanism, the size of the diverter plate, etc., to achieve rapid and efficient atomization and adapt to complex fire situations.

[0051] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A misting fire nozzle, characterized in that, The atomizing fire nozzle includes a nozzle body, a flow divider, and a baffle. The nozzle body includes a flow guide groove, a pressurization chamber, a connection hole, and a water storage chamber; The flow divider includes high-pressure nozzles that penetrate the flow divider.

2. The fire nozzle according to claim 1, characterized in that, The diverter plate is connected to the nozzle body through the connecting hole, and the high-pressure nozzle is connected to the water storage chamber.

3. The fire nozzle according to claim 1, characterized in that, The nozzle body includes 2 to 10 guide channels, which connect the water storage chamber and the pressurization chamber.

4. The fire nozzle according to claim 1, characterized in that, The baffle is connected to the nozzle body, and the axis passing through the center of the high-pressure nozzle does not intersect the baffle.

5. The fire nozzle according to claim 1, characterized in that, An axis extending through the center of the guide channel intersects the flow divider and / or the baffle.

6. The fire nozzle according to claim 3, characterized in that, The guide groove is arranged parallel inside the nozzle body and symmetrically around the connection hole.

7. The fire nozzle according to claim 3, characterized in that, The guide channel is a variable diameter pipe.

8. The fire nozzle according to claim 1, characterized in that, The pressurization chamber is one or more of the following shapes: cylindrical, frustum-shaped, and conical.

9. The fire nozzle according to claim 1, characterized in that, The outlet of the flow guide channel is spaced at a given distance from the flow divider plate.

10. The fire nozzle according to claim 1, characterized in that, It also includes a fast connection structure. The nozzle body is connected to the quick-connect structure via a connecting sleeve.

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