CN114470591A - Centrifugal high-pressure water mist spray head - Google Patents
Centrifugal high-pressure water mist spray head Download PDFInfo
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- CN114470591A CN114470591A CN202111585929.1A CN202111585929A CN114470591A CN 114470591 A CN114470591 A CN 114470591A CN 202111585929 A CN202111585929 A CN 202111585929A CN 114470591 A CN114470591 A CN 114470591A
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
- A62C31/05—Nozzles specially adapted for fire-extinguishing with two or more outlets
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Abstract
The embodiment of the invention discloses a centrifugal high-pressure water mist spray head, which comprises: the top of the spray head body is provided with a water inlet which is communicated with a fire-fighting water pipeline; the low-pressure valve comprises a base arranged in the spray head body and a valve block connected with the base through a limiting spring, the valve block is pushed by the limiting spring with pretightening force to seal the water inlet, and a circulation cavity communicated with the cavity of the low-pressure valve is formed in the lower part of the base in the spray head body; the flow dividing ball body is arranged in a flow dividing ball body base arranged at the bottom of the circulation chamber; the bottom of the spray head body is provided with a plurality of through holes inlaid with turbine blade type nozzles, the diameter of an inner pipeline of each nozzle is gradually reduced along the direction from an inlet to a spray outlet, and after high-pressure fire water pushes a valve block away, the high-pressure fire water enters a circulation chamber through a chamber of a low-pressure valve and impacts a shunting ball in a shunting ball base so as to atomize water flow through the shunting ball and then spray the atomized water flow out through the nozzles.
Description
Technical Field
The invention relates to the technical field of fire fighting, in particular to a centrifugal high-pressure water mist spray head.
Background
With the development of the cruise ship built in China, fire prevention and protection requirements are also one of the highest concerns of cooperation of the two parties. A new nozzle design should meet the objectives of high speed, high footprint, and water conservation. There is often a reported risk of fire on ships, which is one of the largest economic losses in the mail-ship industry. Furthermore, the effectiveness of the system should be increased to reduce damage, especially in the case of elderly and children boarding ships. In addition, since cruise ship fire protection is a complex system spanning machinery, hotel rooms, kitchens, operas, casinos, and other electrical control rooms, it is necessary to use different fire protection systems in the event of a fire.
Fire protection has been one of the major concerns in the design of fire protection for cruise ships. Modern fire sprinkler systems are mostly adapted to be integrated with a variety of components, from pumps, pipes to components using automated sprinklers. Likewise, fire protection systems are also critical to the cruise ship. With the introduction of the design of the first-made large-scale cruise ship in China, a high-pressure water mist spray head which requires to master an autonomous controllable technology is also on schedule. In the past, most cruise ships have used the fire protection system of Hi-fog for their popularity and effectiveness.
Disclosure of Invention
In view of the above problems in the prior art, an embodiment of the present invention provides a centrifugal high-pressure water mist sprayer, which has a small throttling amount, a large spraying momentum, a large protection area, and a high-pressure water mist sprayer for preventing water from leaking when not in use, and which can maintain good sealing performance when a water supply pipeline is under high pressure, and can automatically spray water under high pressure when a fire is sensed, so as to achieve a rapid fire extinguishing function.
The embodiment of the invention provides a centrifugal high-pressure water mist spray head, which comprises:
the top of the spray head body is provided with a water inlet which is communicated with a fire-fighting water pipeline;
the low-pressure valve comprises a base arranged in the sprayer body and a valve block connected with the base through a limiting spring, the valve block is pushed and blocked at the water inlet by the limiting spring with pretightening force, and a circulation chamber communicated with the chamber of the low-pressure valve is arranged at the lower part of the base in the sprayer body;
the flow dividing ball body is arranged in a flow dividing ball body base arranged at the bottom of the circulation chamber;
the diameter of the pipeline in the nozzle is gradually reduced along the direction from the inlet to the spray outlet, after the high-pressure fire water pushes the valve block away, the high-pressure fire water enters the circulation chamber through the chamber of the low-pressure valve and impacts the shunting ball in the shunting ball base, so that water flow is atomized by the shunting ball and then is sprayed out through the nozzle.
In some embodiments of the present invention, the upper portion of the valve block facing the water inlet side is disposed in a semicircular shape, the lower portion of the valve block is disposed in a cylindrical shape, the lower portion of the valve block is axially provided with a mounting hole for accommodating the limiting spring, and the spray head body is internally provided with a cavity for accommodating the valve block and matching with the shape of the valve block.
In some embodiments of the present invention, the bottom end of the lower portion of the valve block is provided with a protrusion extending out of the lower portion of the valve block, and the protrusion is adapted to a groove formed inside the nozzle body.
In some embodiments of the present invention, the lower portion of the nozzle body is disposed in a hemispherical shape, the plurality of through holes are uniformly distributed around a perpendicular bisector of the water inlet of the nozzle body, a distance from the water inlet to each through hole is the same, and depths of the plurality of through holes are the same.
In some embodiments of the invention, the nozzle comprises a custom bearing and a custom turbine blade, wherein,
the customized bearing is arranged in a hollow manner, the diameter of an inner ring of the bearing is gradually reduced along the direction from the nozzle inlet to the spray outlet, and the customized bearing is fixedly connected with an inner pipeline of the nozzle through the top end of the inner ring;
the turbine blade and the bottom end of the inner ring of the customized bearing are used for driving the inner ring of the customized bearing to rotate when the turbine blade rotates under the action of water pressure.
In some embodiments of the invention, the custom bearing is loaded from the top end of the inner conduit of the nozzle;
the customization bearing is equipped with a plurality of interior smooth balls, just a plurality of interior smooth balls pass through the interior smooth ball mount top, interior smooth ball mount bottom, inner circle and the outer lane of customization bearing are fixed, wherein, interior smooth ball mount top with interior smooth ball mount bottom through with bearing outer lane threaded connection.
In some embodiments of the invention, the turbine blade is welded and fixed with the inner ring of the customized bearing, and the radius size of the turbine blade is gradually increased from the size same as the radius of the inner ring of the bearing to the size same as the radius of the through hole along the water outlet direction of the spray head.
In some embodiments of the invention, a sealing ring is provided at the connection of the low pressure valve and the water inlet.
In some embodiments of the invention, the inner wall of the through hole is provided with an internal thread, and the outer wall of the nozzle is provided with a thread matched with the internal thread.
In some embodiments of the invention, the difference between the inner diameter dimension of the shunt sphere base and the diameter dimension of the shunt sphere is within a predetermined size range.
Compared with the prior art, the centrifugal high-pressure water mist spray head provided by the embodiment of the invention has the beneficial effects that: the sealing system is composed of a pressing structural part, a sealing ring, a low-pressure valve and a supporting base. When the device is closed, the device keeps an effective sealing state under the action of static high-pressure water flow; when a fire disaster happens, due to the change of high pressure, the fire extinguishing device can timely respond, and ensures that high-pressure water flow is timely ejected to extinguish the fire. In addition, a spring in the low-pressure valve is protected by the valve, so that the possibility of corrosion and damage caused by high-pressure water flow is reduced; adopt the reposition of redundant personnel spheroid, let high-pressure rivers can disperse the opening of different height uniformly, let the spray density and the angle of high-pressure water smoke reach optimum effect. Under the action of high-pressure water flow, a small gap is reserved between the shunt ball and the shell body of the spray head body, the high-pressure water flow can flow in the gap of 1mm and quickly cover 7 through holes at the bottom, and the volumes of ejected liquid are the same under the same water pressure because the opening areas of the through holes are communicated; in addition, because the shunt ball body is not fixed in the spray head body, the shunt ball body can be rapidly transmitted under high-pressure water flow to form interference and rotation on the high-pressure water flow, and the centrifugal atomization effect of the water mist can be improved; the centrifugal atomization effect is optimal by adopting the turbine blade-shaped nozzle. Under the effect of setting for pressure, the nozzle that high-pressure rivers flowed into through-hole department and settled drives turbine blade and rotates, and wherein turbine blade and jet engine design principle are the same, introduce back high-speed rotation with liquid, jet out after the step-down, and the water smoke of output not only has higher speed in the direction of jet out, also increases at rotation direction speed, and the area of coverage of putting out a fire increases, and atomization effect is better.
In conclusion, the closed system has good sealing performance, prevents water dripping and leaking under normal conditions, adopts the shunting ball body to uniformly disperse high-pressure water flow to 7 openings and assists in centrifugal atomization of the water flow; the high-speed centrifugal atomization is realized by combining the turbine blade-shaped nozzle, the spraying speed and the coverage area of output water mist are greatly increased, and the high-pressure water mist fire extinguishing performance can be well exerted in a fire disaster.
Drawings
FIG. 1 is a schematic three-dimensional exploded view of a centrifugal high-pressure water mist head according to an embodiment of the invention;
FIG. 2 is a schematic top view of a centrifugal high pressure water mist head according to an embodiment of the present invention;
FIG. 3 is a schematic front view of a centrifugal high-pressure water mist head according to an embodiment of the invention;
FIG. 4 is a schematic cross-sectional view of A-A of FIG. 3;
FIG. 5 is a schematic three-dimensional exploded view of a nozzle of a centrifugal high-pressure water mist head according to an embodiment of the invention;
FIG. 6 is a schematic top view of a centrifugal high pressure water mist head nozzle according to an embodiment of the present invention;
FIG. 7 is a schematic front view of a nozzle of a centrifugal high-pressure water mist head according to an embodiment of the invention;
fig. 8 is a schematic sectional structure view of a-a in fig. 7.
Reference numerals
1. A spray head body; 2. a water inlet; 3. a low pressure valve; 4. a base; 5. a limiting spring; 6. a valve block; 7. a flow-through chamber; 8. a shunt sphere; 9. a shunt sphere base; 10. a through hole; 11. a nozzle; 12. customizing a bearing; 13. a turbine blade; 14. an inner slide ball; 15. the top of the inner sliding ball fixing frame; 16. the bottom of the inner sliding ball fixing frame; 17. an inner ring; 18. an outer ring; 19. a seal ring; 20. a water inlet of the inner ring; 21. a water outlet of the inner ring; 22. a fixed frame screw.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Various aspects and features of the present application are described herein with reference to the drawings.
These and other characteristics of the present application will become apparent from the following description of preferred forms of embodiment, given as non-limiting examples, with reference to the attached drawings.
It should also be understood that, although the present application has been described with reference to some specific examples, a person of skill in the art shall certainly be able to achieve many other equivalent forms of application, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.
The above and other aspects, features and advantages of the present application will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.
Specific embodiments of the present application are described hereinafter with reference to the accompanying drawings; however, it is to be understood that the disclosed embodiments are merely exemplary of the application, which can be embodied in various forms. Well-known and/or repeated functions and structures have not been described in detail so as to not unnecessarily obscure the present application with unnecessary or unnecessary detail. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present application in virtually any appropriately detailed structure.
The specification may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may each refer to one or more of the same or different embodiments in accordance with the application.
An embodiment of the present invention provides a centrifugal high-pressure water mist sprayer, as shown in fig. 1 to 8, including:
the top of the spray head body 1 is provided with a water inlet 2 communicated with a fire-fighting water pipeline, the water inlet 2 and the fire-fighting water pipeline can be connected by threads or clamping, and the spray head body can be conveniently installed and ensure the connection strength; wherein, the main body of the high-pressure spray head body 1 can be made of high-strength and corrosion-resistant stainless steel.
The low-pressure valve 3 is integrally arranged in a hollow structure arranged in the spray head body 1, the low-pressure valve 3 comprises a base 4 arranged in the hollow structure in the spray head body 1, and a valve block 6 connected with the base 4 through a limit spring 5, wherein the limit spring 5 is fixedly connected with the valve block 6, so that direct contact between high-pressure liquid and the spring is prevented, corrosion and loosening phenomena are prevented, the valve block 6 is pushed and blocked by the limit spring 5 with pretightening force, wherein, the lower part of the base 4 in the spray head body 1 is provided with a circulation chamber 7 which is communicated with the chamber of the low pressure valve 3, the base 4 of the low pressure valve 3 can be a part of the spray head body 1, further, the number of parts is reduced, and the effects of supporting the low-pressure valve 3 and controlling the movable height of the low-pressure valve 3 can be achieved; as an example, the nozzle 11 is formed by 3D printing of a zirconia ceramic material, and since zirconia is a material with high toughness, high bending strength and high compression strength, the precision and difficulty of processing and producing the nozzle are reduced, wherein the production cost is greatly reduced by using a 3D printing technology; the low pressure valve 3 and the shunt ball 8 can be made of stainless steel with higher strength, and the high-strength stainless steel can prolong the service life of the product because the two parts have the highest possibility of abrasion.
As an example, the nozzle body 1 may include a top housing of the nozzle body 1 in threaded connection, and a middle housing of the nozzle body 1 and a bottom housing of the nozzle body 1, which can generate a large axial force when the threads are screwed, so as to ensure that the housings of the nozzle body 1 do not fall off or leak water when operating under high pressure; meanwhile, the thread machining is simple, and high precision and tightness can be kept. The nozzle 11 and the shell at the bottom of the nozzle body 1 are connected through threads, so that the sealing performance is good, the modularization of the whole product is realized, the product is easy to replace, the cost of repair and replacement is reduced, and the economic benefit is high. In this embodiment, the limiting spring 5 is disposed in a groove in the middle housing of the nozzle body 1, and the low-pressure valve 3 is placed in the cavity of the nozzle body 1 and supported by the limiting spring 5. Because the high-pressure water flow can not directly contact the limiting spring 5 arranged in the spray nozzle, the service life of the limiting spring 5 is greatly prolonged, the replacement frequency of the spray nozzle body 1 is reduced, and the service life is prolonged; meanwhile, the limiting spring 5 can be more stable during operation, and the possibility of corrosion is reduced.
In this embodiment, a sealing ring 19 is disposed at the connection between the low pressure valve 3 and the water inlet 2, one surface of the sealing ring 19 is tightly attached to the valve block 6 of the low pressure valve 3, and the other surface is tightly attached to the water inlet 2 of the nozzle body 1;
reposition of redundant personnel spheroid 8, it is located in the reposition of redundant personnel spheroid base 9 that the bottom of circulation cavity 7 was seted up, the bottom of reposition of redundant personnel spheroid base 9 is the hemisphere type setting, and the lateral wall is the columnar structure, and locates the middle part of sprinkler body 1, the central line of its lateral wall and the coincidence of the central line of sprinkler body 1, the internal diameter size (including bottom hemisphere type diameter and lateral wall columnar structure's diameter) of reposition of redundant personnel spheroid base 9 with the difference of the diameter size of reposition of redundant personnel spheroid 8 is in predetermineeing the size range, wherein, the diameter size of reposition of redundant personnel spheroid 8 slightly is less than the internal diameter size of reposition of redundant personnel spheroid base 9 to can guarantee reposition of redundant personnel spheroid 8 under the effect of high-pressure rivers, reposition of redundant personnel spheroid 8 increases the angular momentum rapidly, rotates and vibrations, makes high-pressure rivers further rotatory, realizes centrifugal atomizing. That is, the diversion sphere base 9 is arranged at the position of the central water diversion opening and the diversion sphere 8 is arranged, so that the occupied volume of the liquid is reduced, the pressure intensity is increased, and on the other hand, the diversion sphere 8 can rapidly rotate and vibrate under high pressure to form spraying and atomizing on the liquid. Meanwhile, the shunt ball 8 is placed in the shunt ball base 9 of the shell at the bottom of the spray head body 1, so that the fixation is not needed, and the difficulty of the processing industry is reduced.
The bottom of the spray head body 1 is provided with a plurality of through holes 10 embedded with nozzles 11 in the shape of turbine blades 13, for example, 6 or 7 through holes 10 may be provided, which is not specifically limited herein; the diameter of the pipeline in the nozzle 11 gradually decreases along the direction from the inlet to the spray outlet, and after the high-pressure fire water pushes the valve block 6 away, the high-pressure fire water enters the circulation chamber 7 through the chamber of the low-pressure valve 3 and impacts the shunting ball 8 in the shunting ball base 9, so that the water flow is atomized by the shunting ball 8 and then is sprayed out through the nozzle 11.
In this embodiment, the through hole 10 and the nozzle 11 may be connected by a screw thread, that is, an inner wall of the through hole 10 is provided with an internal thread, and an outer wall of the nozzle 11 is provided with a screw thread matching the internal thread.
In some embodiments of the present invention, the upper portion of the valve block 6 facing the water inlet 2 is disposed in a semicircular shape, the lower portion of the valve block 6 is disposed in a cylindrical shape, the lower portion of the valve block 6 is axially provided with a mounting hole for accommodating the limiting spring 5, and the spray head body 1 is internally provided with a cavity for accommodating the valve block 6 and matching with the shape of the valve block 6.
In this embodiment, the bottom end of the lower portion of the valve block 6 is provided with a protrusion extending out of the lower portion of the valve block 6, and the protrusion is adapted to a groove formed in the spray head body 1, so that the valve block 6 can be positioned by the protrusion matching with the groove, and the valve block 6 cannot rotate or deflect under the impact of high-pressure water flow.
In order to guarantee to locate each nozzle 11 homoenergetic among a plurality of through-holes 10 of sprinkler body 1 lower part is water and guarantees water spray intensity, in this embodiment, the lower part of sprinkler body 1 is hemisphere type setting, and is a plurality of through-hole 10 centers on the perpendicular bisector evenly distributed setting of the water inlet 2 of sprinkler body 1, the distance of water inlet 2 to every through-hole 10 is the same, and is a plurality of the degree of depth of through-hole 10 is the same to through-hole 10 is even in the bottom subsection, and mutual contained angle is 360/2n and staggers, and n is the number of through-hole 10 all around.
Further, in some embodiments of the present invention, the nozzle 11 comprises a customized bearing 12 and a customized turbine blade 13, wherein the customized bearing 12 is hollow, the diameter of the inner ring 17 of the customized bearing 12 gradually decreases along the direction from the inlet to the outlet of the nozzle 11, that is, the diameter of the inner ring 17 of the customized bearing 12 is hollow from large to small, and has the same angle with the inlet and outlet of the top end of the nozzle 11, that is, the same angle with the inner wall of the top end of the nozzle 11, so as to facilitate the fixation with the inner pipe of the nozzle 11, and the customized bearing 12 is fixedly connected with the inner pipe of the nozzle 11 through the top end of the inner ring 17; the turbine blade 13 and the bottom end of the inner ring 17 of the customized bearing 12 are used for driving the inner ring 17 of the customized bearing 12 to rotate when the turbine blade 13 rotates under the action of water pressure, the water outlet 21 of the inner ring of the customized bearing 12 is simultaneously the water inlet 2 of the turbine blade 13, the water inlet 20 of the inner ring of the customized bearing 12 is positioned in the through hole 10, and in addition, the outer ring 18 of the customized bearing 12 is connected with the shell of the nozzle 11 and is kept in a static state under the action of high-pressure water. Specifically, the inner ring 17 of the customized bearing 12 in the nozzle 11 is put into the top end of the inlet of the nozzle 11, and due to the included angle of the flow channel, the inner ring 17 can be fixed without external assistance, so that the difficulty of the assembling process is reduced;
in the present embodiment, the custom bearing 12 is loaded from the top end of the inner pipe of the nozzle 11; the customized bearing 12 is provided with a plurality of inner sliding balls 14, and the plurality of inner sliding balls 14 are fixed by an inner sliding ball fixing frame top 15, an inner sliding ball fixing frame bottom 16, an inner ring 17 and an outer ring 18 of the customized bearing 12, wherein the inner sliding ball fixing frame top 15 and the inner sliding ball fixing frame bottom 16 are fixedly connected by a fixing frame screw 22. As an example, the custom bearing 12 may be provided with 5 inner sliding balls 14, each fixed by an inner sliding ball fixing frame top 15, an inner sliding ball fixing frame bottom 16, an inner ring 17 and an outer ring 18, wherein the inner sliding ball fixing frame top 15 and the inner sliding ball fixing frame bottom 16 are screwed and locked by fixing frame screws 22; finally, the turbine blade 13 is welded with the connected nozzle 11 component, and the welding difficulty is greatly reduced because the nozzle 11 has small volume and small required welding position.
Further, in the present embodiment, the turbine blade 13 is welded and fixed with the inner ring 17 of the customized bearing 12, and the radius size of the turbine blade 13 is gradually increased from the size same as the radius of the inner ring 17 of the bearing to the size same as the radius of the through hole 10 along the nozzle outlet direction.
In the centrifugal high-pressure water mist nozzle provided by the embodiment of the invention, when the ambient temperature is normal, the low-pressure valve 3 is pressed upwards against the sealing ring 19 under the tension of the limiting spring 5 to form a seal. Because of the obstruction of the low pressure valve 3, the existing high pressure water flow in the water pipe is inhibited and blocked, and the water leakage and water dripping of the spray head body 1 are prevented under the normal condition. When a fire occurs, when the environmental temperature rises to the set temperature of the temperature sensing element, the temperature sensing element triggers the water pump, the internal pressure of the water pipe is increased, the limiting spring 5 below the low-pressure valve 3 is extruded under the action of water pressure (more than 160bar), the low-pressure valve 3 is separated from the sealing ring 19, the low-pressure valve 3 is opened, and high-pressure water flows into the spray head body 1 to enter the middle cavity and flows to the shunting ball body 8 through the opening hole on the base 4; under the action of the high-pressure water flow, the shunting ball 8 rapidly increases angular momentum, rotates and vibrates, so that the high-pressure water flow further rotates to realize centrifugal atomization; the liquid enters the nozzle 11 in the shunt through hole 10 after passing through the shunt sphere 8, further pressurization of the liquid is realized due to the reduction of the diameter of the pipeline in the nozzle 11, and the fog drops with the minimum diameter, the maximum impulse and the uniform density are further obtained at the outlet of the nozzle 11; finally, the turbine blades 13 on the inner ring 17 of the customized bearing 12 rapidly rotate due to the pushing of high-pressure water mist (the pressure is more than 140 bar), so that the high-pressure water flow is further atomized in a centrifugal mode, the ejected liquid reaches a high spraying coverage area, and the fire extinguishing nozzle is guaranteed to have good fire extinguishing performance.
According to the technical scheme, the centrifugal high-pressure water mist spray head provided by the embodiment of the invention adopts the sealing system consisting of the pressing structural part, the sealing ring 19, the low-pressure valve 3 and the supporting base 4. When the device is closed, the device keeps an effective sealing state under the action of static high-pressure water flow; when a fire disaster happens, due to the change of high pressure, the fire extinguishing device can timely respond, and ensures that high-pressure water flow is timely ejected to extinguish the fire. In addition, the limiting spring 5 in the low-pressure valve 3 is protected by the valve, so that the possibility of corrosion and damage caused by high-pressure water flow is reduced; by adopting the shunting ball body 8, high-pressure water flow can be uniformly dispersed to the through holes 10 with different heights, and the spraying density and angle of high-pressure water mist can achieve the optimal effect. Under the action of high-pressure water flow, a small gap is reserved between the shunt ball 8 and the shell body of the spray head body 1, the high-pressure water flow can flow in the gap of 1mm and quickly cover 7 through holes 10 at the bottom, and the volume of the ejected liquid is the same under the same water pressure due to the communication of the opening areas of the through holes 10; in addition, because the shunt sphere 8 is not fixed in the spray head body 1, the shunt sphere can be rapidly transmitted under high pressure water flow to form interference and rotation on the high pressure water flow, thereby being beneficial to improving the centrifugal atomization effect of the water mist; the centrifugal atomization effect is optimized by adopting the turbine blade-shaped nozzle 11. Under the effect of setting for pressure, high-pressure rivers flow into the nozzle 11 of seting up in through-hole department, drive turbine blade 13 and rotate, and wherein turbine blade 13 is the same with jet engine design principle, introduces back high-speed rotation with liquid, jets out after the step-down, and the water smoke of output not only has higher speed in the direction of jetting out, also increases at rotation direction speed, and the area that covers of putting out a fire increases, and atomization effect is better.
In conclusion, the closed system has good sealing performance, prevents water dripping and leaking under normal conditions, and adopts the flow dividing ball body 8 to uniformly disperse high-pressure water flow to 7 openings and assist in centrifugal atomization of the water flow; the turbine blade-shaped nozzle 11 is combined to realize high-speed centrifugal atomization, so that the spraying speed and the coverage area of output water mist are greatly increased, and good high-pressure water mist fire extinguishing performance can be exerted in a fire disaster.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.
Claims (10)
1. A centrifugal high pressure water mist head, comprising:
the top of the spray head body is provided with a water inlet which is communicated with a fire-fighting water pipeline;
the low-pressure valve comprises a base arranged in the sprayer body and a valve block connected with the base through a limiting spring, the valve block is pushed and blocked at the water inlet by the limiting spring with pretightening force, and a circulation chamber communicated with the chamber of the low-pressure valve is arranged at the lower part of the base in the sprayer body;
the flow dividing ball body is arranged in a flow dividing ball body base arranged at the bottom of the circulation chamber;
the diameter of the pipeline in the nozzle is gradually reduced along the direction from the inlet to the spray outlet, after the high-pressure fire water pushes the valve block away, the high-pressure fire water enters the circulation chamber through the chamber of the low-pressure valve and impacts the shunting ball in the shunting ball base, so that water flow is atomized by the shunting ball and then is sprayed out through the nozzle.
2. A centrifugal high-pressure water mist head according to claim 1,
the valve block orientation the upper portion of water inlet side is the semicircle type setting, and the lower part is the column setting, the valve block lower part is seted up along the axial and is used for holding spacing spring's mounting hole, set up in the sprinkler body and be used for holding the valve block and with the cavity of the shape looks adaptation of valve block.
3. A centrifugal high-pressure water mist head according to claim 2,
the bottom end of the lower part of the valve block is arranged on a protrusion extending out of the lower part of the valve block, and the protrusion is matched with a groove formed in the spray head body.
4. A centrifugal high-pressure water mist head according to claim 1,
the lower part of the spray head body is arranged in a hemispherical shape, the through holes are uniformly distributed around the perpendicular bisector of the water inlet of the spray head body, the distance from the water inlet to each through hole is the same, and the depth of the through holes is the same.
5. A centrifugal high-pressure water mist head according to claim 1, characterized in that the nozzles comprise custom bearings and custom turbine blades, wherein,
the customized bearing is arranged in a hollow manner, the diameter of an inner ring of the bearing is gradually reduced along the direction from the nozzle inlet to the spray port, and the customized bearing is fixedly connected with an inner pipeline of the nozzle through the top end of the inner ring;
the turbine blade and the bottom end of the inner ring of the customized bearing are used for driving the inner ring of the customized bearing to rotate when the turbine blade rotates under the action of water pressure.
6. A centrifugal high-pressure water mist head according to claim 5,
the customized bearing is loaded from the top end of the inner pipeline of the nozzle;
the customized bearing is provided with a plurality of inner sliding balls, the plurality of inner sliding balls pass through the top of an inner sliding ball fixing frame of the customized bearing, the bottom of an inner sliding ball fixing frame, an inner ring and an outer ring are fixed, and the top of the inner sliding ball fixing frame and the bottom of the inner sliding ball fixing frame are in threaded connection with the outer ring of the bearing.
7. A centrifugal high-pressure water mist head according to claim 5,
the turbine blade and the inner ring of the customized bearing are welded and fixed, and the radius of the turbine blade is gradually increased to the size which is the same as the radius of the inner ring of the bearing from the size which is the same as the radius of the inner ring of the bearing along the water outlet direction of the spray head.
8. A centrifugal high-pressure water mist head according to claim 1,
and a sealing ring is arranged at the joint of the low-pressure valve and the water inlet.
9. A centrifugal high-pressure water mist head according to claim 1,
the inner wall of the through hole is provided with an internal thread, and the outer wall of the nozzle is provided with a thread matched with the internal thread.
10. A centrifugal high-pressure water mist head according to claim 1,
the difference value between the inner diameter size of the shunting sphere base and the diameter size of the shunting sphere is within a preset size range.
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| CN202111585929.1A CN114470591B (en) | 2021-12-20 | 2021-12-20 | Centrifugal high-pressure water mist spray head |
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| CN202111585929.1A CN114470591B (en) | 2021-12-20 | 2021-12-20 | Centrifugal high-pressure water mist spray head |
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| CN114470591B CN114470591B (en) | 2023-05-09 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2385804Y (en) * | 1999-07-13 | 2000-07-05 | 韩岩 | Vane-type automatic rotation sprinkler gun |
| CN107398364A (en) * | 2016-05-18 | 2017-11-28 | 朱宏洁 | A kind of Chinese garden planting spray irrigation system shower nozzle |
| CN109201359A (en) * | 2017-07-04 | 2019-01-15 | Ｓａｎｅｉ株式会社 | The construction and shower bath of outlet part |
| US10273167B1 (en) * | 2015-02-12 | 2019-04-30 | Raymond C. Sherry | Fluid-operated nozzle |
-
2021
- 2021-12-20 CN CN202111585929.1A patent/CN114470591B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2385804Y (en) * | 1999-07-13 | 2000-07-05 | 韩岩 | Vane-type automatic rotation sprinkler gun |
| US10273167B1 (en) * | 2015-02-12 | 2019-04-30 | Raymond C. Sherry | Fluid-operated nozzle |
| CN107398364A (en) * | 2016-05-18 | 2017-11-28 | 朱宏洁 | A kind of Chinese garden planting spray irrigation system shower nozzle |
| CN109201359A (en) * | 2017-07-04 | 2019-01-15 | Ｓａｎｅｉ株式会社 | The construction and shower bath of outlet part |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114470591B (en) | 2023-05-09 |
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