Water-saving spray header
By setting up an open exhaust hood and inner core air pipe in the airflow channel of the fire sprinkler head, combined with the design of a dispersed plate and a rotating sprinkler tray, the problem of the existing fire sprinkler head having short water residence time and requiring a large amount of water supply when extinguishing the combustion particles in the air is solved, and the effect of effective fire extinguishing and water saving is achieved.
Patent Information
- Application Number
- CN202421316626.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-06-11
AI Technical Summary
When extinguishing the combustion particles floating in the air, the existing fire sprinkler heads have a fast water outlet speed and a short residence time, making it difficult to effectively extinguish the fire, and require a large amount of water supply, which is not conducive to water conservation.
A water-saving spray head is designed. By setting up an open exhaust hood and inner core air pipe in the airflow channel, an annular passage is formed, combined with a dispersing plate to disperse the fire-extinguishing air flow, so that it is mixed into the water flow, covering the fire, and impacting the chamfered surface of the bottom end of the sprinkler plate through the sprinkler pipe, so that the sprinkler plate rotates, splits the water flow, and expands the contact area of the fire.
It effectively avoids the spread of burning particles, saves fire extinguishing water, and improves the fire extinguishing range and efficiency through the splitting and dispersing effect of the rotating sprinkler tray.
Smart Images
Figure CN222677077U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fire fighting equipment, in particular to a water-saving sprinkler head. Background Art
[0002] When a fire occurs, firefighting equipment is often used to extinguish the fire on site. As an important component of firefighting equipment, fire sprinkler heads have made an indelible contribution to the construction of fire safety. Existing fire sprinkler heads are usually water splash plate sprinkler heads. The sprayed water flow can drive the water splash plate to rotate and increase the range of the outgoing water flow.
[0003] Although the existing sprinkler heads can increase the range of the water flow, it is difficult to quickly extinguish the burning particles floating in the air due to the fast water discharge speed of the sprinkler heads and the short residence time of the water flow in the air. Therefore, a large amount of water needs to be supplied to the sprinkler heads when effectively extinguishing the fire and the burning particles, which is not conducive to water saving. For this reason, we propose a water-saving sprinkler head that can effectively extinguish the burning particles floating in the air. Utility Model Content
[0004] The purpose of the utility model is to provide a water-saving sprinkler head to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a water-saving sprinkler head, comprising a connecting seat, wherein an air flow channel and a water flow channel are welded through the interior of the connecting seat, the air flow channel is used to pass a fire-extinguishing air flow, such as carbon dioxide gas, heptafluoropropane gas or helium, neon and other inert gases, the water flow channel is used to transport water flow for fire extinguishing, a plurality of limit grooves are opened on the inner wall of the air flow channel, the limit grooves are arranged in an equally spaced circular array about the center line of the air flow channel, the inner wall of the limit groove is movably connected to a limit rod, the bottom of the limit rod is connected to the inner wall of the limit groove by a spring, the limit rod is a cross-shaped hard rod, the limit rod moves linearly along the edge direction of the limit groove, an inner core air pipe connected to the air flow channel is vertically fixed on the top of the limit rod, the inner core air pipe is used to discharge the fire-extinguishing air flow in a centralized manner, an open exhaust hood is integrally formed on the top of the inner core air pipe, and the open exhaust hood can just block the top of the air flow channel, when the air flow channel is connected to an external fire-extinguishing gas source through a threaded joint, the external gas The gas pressure introduced into the air flow channel can flush the open exhaust hood out of the top of the air flow channel, and the open exhaust hood pulls the inner core air pipe out of the opening of the air flow channel, so that an annular channel is formed between the air flow channel and the inner core air pipe, and the fire extinguishing air flow discharged from the annular channel is dispersed by the dispersion plate, and can be mixed into the fire extinguishing water flow and the water body thrown by the sprinkler plate to cover the fire, and the dispersed fire extinguishing air flow can be mixed into the air, surrounding the burning particles floating in the air in contact with it, which is conducive to avoiding the diffusion of the burning particles and saving water for fire extinguishing. The maximum cross-section of the open exhaust hood is tangent to the inner wall of the air flow channel; one end of the water flow channel is connected to an annular water delivery pipe, and the inner wall of the annular water delivery pipe is connected to a plurality of water spray pipes, and the annular water delivery pipe can supply water to the water spray pipe, and the water spray pipe sprays water for fire extinguishing. The water flow after spraying impacts the chamfered surface at the bottom end of the sprinkler plate, and the impact force generated on the chamfered surface can cause the sprinkler plate to rotate, thereby cutting and dispersing the water body at the spraying location, which is conducive to improving the fire extinguishing range.
[0006] As a further solution of the utility model: the air flow channel is an L-shaped elbow with a hollow interior, the water flow channel is a cylindrical pipe, and one end of the air flow channel and the water flow channel are coaxially welded with threaded joints, which are connected to external water and air source supply channels, and can supply fire extinguishing gas and water sources to the sprinkler head.
[0007] As a further solution of the utility model: the opening outline diameter of the open exhaust hood is not less than twice the diameter of the inner core air pipe, so as to ensure that after the inner core air pipe extends out of the top of the airway, an annular channel is formed between the inner core air pipe and the airway.
[0008] As a further solution of the utility model: an airflow breaking up structure is coaxially welded on the top of the airflow channel, the airflow breaking up structure includes an expansion tube, a breaking up plate with multiple continuous concave and convex surfaces is welded on the top of the expansion tube, and the breaking up plate can break up the airflow through the connection between the concave and convex surfaces, which is beneficial for the fire extinguishing gas to capture the combustion particles.
[0009] As a further solution of the utility model: the annular water pipe is an internally hollow circular conveying pipe, and the cross-sectional diameter of the internal channel of the annular water pipe is not less than the sum of the inner diameters of several water spray pipes, thereby ensuring that the annular water pipe can provide sufficient water supply to the water spray pipe.
[0010] As a further solution of the utility model: the surface of the air flow channel is movably connected with a bearing, the surface of the bearing is movably connected with a sprinkler disc, the sprinkler disc can rotate with the center line of the bearing as the axis under the tangential thrust, and the rotating sprinkler disc can sprinkle water for fire extinguishing.
[0011] As a further solution of the utility model: a plurality of cutouts are provided at equal intervals on the edge of the watering plate, an inclined chamfered surface is provided on the bottom edge of the watering plate, and the top water outlet of the water spray pipe is directly below the chamfered surface. The plurality of cutouts are conducive to accelerating the dispersion speed of the water flow.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] 1. The fire-extinguishing airflow discharged by the utility model is dispersed by the dispersion plate and can be mixed into the fire-extinguishing water flow and the water body sprinkled by the sprinkler plate to cover the fire. The dispersed fire-extinguishing airflow can be mixed into the air and surround the floating burning particles in the air in contact with it, which is beneficial to avoid the diffusion of the burning particles and save water for fire extinguishing.
[0014] 2. The water flow sprayed out by the water spray pipe of the utility model can impact the chamfered surface at the bottom end of the sprinkler plate, and the impact force generated on the chamfered surface forms a tangential thrust on the sprinkler plate, thereby causing the sprinkler plate to rotate. During the rotation of the sprinkler plate, the water body at the spraying location can be split and dispersed. The dispersed water flow can expand the contact area with the fire, which is conducive to rapid fire extinguishing. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional structural diagram of the utility model;
[0016] Figure 2 This is a diagram of the expansion tube connection structure of the utility model;
[0017] Figure 3 It is a cross-sectional view of the air flow passage of the utility model;
[0018] Figure 4 This is a top view of the open exhaust hood connection of the utility model.
[0019] In the figure: 1. connecting seat; 2. air flow channel; 3. water flow channel; 4. threaded joint; 5. expansion tube; 6. breaking plate; 7. limiting groove; 8. limiting rod; 9. inner core air pipe; 10. open exhaust hood; 11. annular water pipe; 12. water spray pipe; 13. bearing; 14. sprinkler plate; 15. incision; 16. spring. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] See also Figure 1-Figure 4 The utility model provides a technical solution: a water-saving sprinkler head, including a connecting seat 1, an air flow channel 2 and a water flow channel 3 are welded through the interior of the connecting seat 1, the air flow channel 2 is used to pass a fire-extinguishing air flow, such as carbon dioxide gas, heptafluoropropane gas or helium, neon and other inert gases, the water flow channel 3 is used to transport the water flow for fire extinguishing, the top of the air flow channel 2 is coaxially welded with an air flow breaking structure, the air flow breaking structure includes an expansion tube 5, and the inner wall of the air flow channel 2 is provided with a plurality of limit grooves 7, and the limit grooves 7 are about the center of the air flow channel 2. The lines are arranged in an equally spaced circular array, the inner wall of the limit groove 7 is movably connected to the limit rod 8, the bottom of the limit rod 8 is connected to the inner wall of the limit groove 7 by a spring 16, the limit rod 8 is a cross-shaped hard rod, the limit rod 8 moves linearly along the edge direction of the limit groove 7, and the top of the limit rod 8 is vertically fixed with an inner core air pipe 9 connected to the airflow channel 2, the inner core air pipe 9 is used to concentrate the discharge of fire-extinguishing airflow, and the top of the inner core air pipe 9 is integrally formed with an open exhaust hood 10, which can just block the top of the airflow channel 2.
[0022] When the air passage 2 is connected to the external fire extinguishing gas source through the threaded joint 4, the gas pressure from the external gas source entering the air passage 2 can flush the open exhaust hood 10 out of the top of the air passage 2, and the open exhaust hood 10 pulls the inner core air pipe 9 out of the opening of the air passage 2, so that an annular channel is formed between the air passage 2 and the inner core air pipe 9. The fire extinguishing airflow discharged from the annular channel is dispersed by the dispersion plate 6 and can be mixed into the fire extinguishing water flow and the water body sprinkled by the water spraying plate 14 covers the fire. The dispersed fire extinguishing airflow can be mixed into the air and surround the burning particles floating in the air that come into contact with it. It is beneficial to avoid the diffusion of combustion particles and save water for fire extinguishing. The maximum cross-section of the open exhaust hood 10 is tangent to the inner wall of the air flow channel 2; one end of the water flow channel 3 is connected to an annular water pipe 11, and the inner wall of the annular water pipe 11 is connected to a plurality of water spray pipes 12. The annular water pipe 11 can supply water to the water spray pipe 12, and the water spray pipe 12 sprays water for fire extinguishing. The sprayed water flow impacts the chamfered surface at the bottom end of the sprinkler plate 14. The impact force generated on the chamfered surface can cause the sprinkler plate 14 to rotate, thereby dividing and breaking up the water body at the spraying location, which is beneficial to increasing the fire extinguishing range.
[0023] Preferably, Figure 1 As shown, the air flow channel 2 is an L-shaped elbow with a hollow interior, and the water flow channel 3 is a cylindrical pipe. One end of the air flow channel 2 and the water flow channel 3 are coaxially welded with a threaded joint 4, and the threaded joint 4 is connected to the external water and air source supply channel, and can supply fire extinguishing gas and water sources to the sprinkler head.
[0024] Preferably, Figure 2 As shown, the opening profile diameter of the open exhaust hood 10 is not less than twice the diameter of the inner core air pipe 9, thereby ensuring that after the inner core air pipe 9 extends out of the top of the air passage 2, an annular channel is formed between the inner core air pipe 9 and the air passage 2.
[0025] Preferably, Figure 2 As shown, a scattering plate 6 having a plurality of continuous concave and convex surfaces is welded on the top of the expansion tube 5. The scattering plate 6 can scatter the airflow through the connection between the concave and convex surfaces, which is beneficial for the fire extinguishing gas to capture the combustion particles.
[0026] Preferably, Figure 1 As shown, the annular water pipe 11 is a circular conveying pipe with a hollow interior. The cross-sectional diameter of the internal channel of the annular water pipe 11 is not less than the sum of the inner diameters of several water spray pipes 12, thereby ensuring that the annular water pipe 11 can provide sufficient water supply to the water spray pipes 12.
[0027] Preferably, Figure 1 As shown, the surface of the airflow channel 2 is movably connected to a bearing 13, and the surface of the bearing 13 is movably connected to a watering plate 14. The watering plate 14 can rotate around the center line of the bearing 13 as the axis under the tangential thrust, and the rotating watering plate 14 can sprinkle water for fire extinguishing.
[0028] Preferably, Figure 1 As shown, the edge of the watering plate 14 is provided with multiple cutouts 15 at equal intervals, the bottom edge of the watering plate 14 is provided with an inclined chamfered surface, and the top water outlet of the water spray pipe 12 is directly below the chamfered surface. Multiple cutouts 15 are conducive to accelerating the dispersion speed of the water flow.
[0029] Working principle: When in use, the air flow channel 2 is connected to an external fire extinguishing gas source, so that a fire extinguishing air flow, such as carbon dioxide gas, heptafluoropropane gas or helium, neon and other inert gases, is introduced into the air flow channel 2, and the water flow channel 3 is connected to an external water source, and the external water source can convey a fire extinguishing water flow to the water flow channel 3. At this time, the gas pressure introduced into the air flow channel 2 by the external gas source can flush the open exhaust hood 10 out of the top of the air flow channel 2, and the open exhaust hood 10 pulls the inner core air pipe 9 out of the opening of the air flow channel 2. The lower end of the inner core air pipe 9 is connected to the spring 16 through the limit rod 8, and the spring 16 generates a pulling force on the bottom end of the limit rod 8 to prevent the inner core air pipe 9 from being separated from the inside of the air flow channel 2, so that the air flow channel 2 and the inner core An annular channel is formed between the air pipes 9, and the fire-extinguishing airflow discharged from the annular channel is dispersed by the dispersion plate 6, and can be mixed into the fire-extinguishing water flow and the water body sprinkled by the sprinkler plate 14 to cover the fire. The dispersed fire-extinguishing airflow can be mixed into the air, surrounding the floating burning particles in the air in contact with it, which is beneficial to avoid the diffusion of the burning particles and is also beneficial to saving water for fire extinguishing. After the external water source provides water to the water flow channel 3, the water is transported to the water spray pipe 12 through the annular water pipe 11. The water flow sprayed from the water spray pipe 12 can impact the chamfered surface at the bottom end of the sprinkler plate 14. The impact force generated on the chamfered surface can cause the sprinkler plate 14 to rotate, thereby dividing and dispersing the water body at the spraying location to extinguish the fire.
[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0031] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A water-saving sprinkler head, comprising a connection seat (1), characterized in that: An air flow channel (2) and a water flow channel (3) are welded through the interior of the connecting seat (1); a plurality of limit grooves (7) are provided on the inner wall of the air flow channel (2); a limit rod (8) is movably engaged with the inner wall of the limit groove (7); the bottom of the limit rod (8) is connected to the inner wall of the limit groove (7) via a spring (16); an inner core air pipe (9) connected to the air flow channel (2) is vertically fixed to the top of the limit rod (8); an open exhaust hood (10) is integrally formed on the top of the inner core air pipe (9); the maximum cross section of the open exhaust hood (10) is tangent to the inner wall of the air flow channel (2); one end of the water flow channel (3) is connected to an annular water pipe (11); the inner wall of the annular water pipe (11) is connected to a plurality of water spray pipes (12).
2. A water-saving sprinkler head according to claim 1, characterized in that: The air flow channel (2) is an L-shaped curved pipe with a hollow interior, and the water flow channel (3) is a cylindrical pipe. One end of the air flow channel (2) and the water flow channel (3) are coaxially welded with a threaded joint (4).
3. A water-saving sprinkler head according to claim 1, characterized in that: The opening profile diameter of the open exhaust hood (10) is not less than twice the diameter of the inner core air pipe (9).
4. A water-saving sprinkler head according to claim 1, characterized in that: An airflow dispersion structure is coaxially welded to the top of the airflow channel (2), the airflow dispersion structure comprising an expansion tube (5), and a dispersion plate (6) having a plurality of continuous concave and convex surfaces is welded to the top of the expansion tube (5).
5. The water-saving sprinkler head according to claim 1, characterized in that: The annular water delivery pipe (11) is a circular delivery pipe with a hollow interior. The cross-sectional diameter of the internal channel of the annular water delivery pipe (11) is not less than the sum of the inner diameters of the plurality of water spray pipes (12).
6. A water-saving sprinkler head according to claim 1, characterized in that: The surface of the air flow channel (2) is movably connected to a bearing (13), and the surface of the bearing (13) is movably connected to a watering plate (14). The watering plate (14) can rotate with the center line of the bearing (13) as the axis under tangential thrust.
7. A water-saving sprinkler head according to claim 6, characterized in that: The edge of the watering plate (14) is provided with a plurality of cutouts (15) at equal intervals, and the bottom edge of the watering plate (14) is provided with an inclined chamfered surface, and the top water outlet of the water spray pipe (12) is directly below the chamfered surface.