CN202983012U - Centrifugal flow guide type fire-fighting water curtain sprinkler head with arc-shaped nozzle - Google Patents

Abstract

The utility model provides a centrifugal flow guide type fire-fighting water curtain sprinkler head with an arc-shaped nozzle. The centrifugal flow guide type fire-fighting water curtain sprinkler head comprises a nozzle outer shell and a nozzle core, wherein the nozzle outer shell comprises a base, a washer and a tapered cap; the main body of the nozzle core is a cone having flow guide fins at the outlet side and backside thereof; the nozzle core is fixedly connected to the nozzle outer shell base through a bolt; a tapered nozzle core is arranged in a cavity inside the nozzle outer shell along a fire-fighting incoming water central line; the central line of the nozzle core is overlapped with the central line of a connected water pipe; the semi-apex angle of the cone is 45 degrees; and straight flow guide fins having an included angle of 60 degrees between the projections on the bottom surface are arranged on the outlet side. The spraying design overcomes the disadvantage that the traditional sprinkler head cannot be applicable to the fire on a vertical wall surface efficiently, and is an improvement and a design oriented to the fire of current high-rise buildings. The sprinkler head can suppress fire propagation on outer walls of high-rise buildings efficiently, and reduce casualties and property loss brought about by the fire of the high-rise buildings.

Description

A kind of centrifugal flow guiding formula water curtain for fire-proof sprinkler head with arc spout

Technical field

The utility model belongs to fire-fighting fire extinguishing equipment technical field, particularly a kind of centrifugal flow guiding formula water curtain for fire-proof sprinkler head with arc spout, and it is specially the fire extinguishing spray shower nozzle of mechanical fluid spray extinguishing device.

Background technology

In recent years, because the fire of high-rise building accident happens occasionally, brought huge loss for the people's the person and property safety.The burning of external wall of high-rise building causes the intensity of a fire sharply to spread to one of more high-rise immediate cause that causes the major accident consequence often.

The control measure of the fire spread of vertical walls mainly comprise the content of two aspects: extinguishing chemical covers the combustible surface, isolated air; Reduce the combustible surface temperature, knock down the flame.This mode of action to when fire extinguishing water has proposed Secretary.Traditional water spraying technique is relatively poor for the fire spreading action effect application of outer facade.Its defective is, this class extinguishing device is for being applicable to inside fire exploitation, and when fire occurs, fire demand water sprays along vertical duct, and the splash box that impact-level is placed produces spray.Because such spray head can't horizontal setting, thus relatively poor for the applicable effect of the fire spread of vertical walls.

In addition, on skyscraper, fire demand water is limited, existing drencher often adopts the impact type design, the water yield and pressure are had higher requirements, at hydraulic pressure under lower or pressurization power set failure conditions, it becomes the curtain effect relatively poor, has both wasted fire demand water when reality is used, and easily incurs loss through delay again attack time.

The at present known anti-control techniques for the skyscraper fire spread mainly still launches around the spray of external wall, relate to guarantee, way of supplying water, entire system control of fire fighting supply etc., be the application for a patent for invention of CN102085413A " a kind of exterior wall water curtain fire-extinguishing system for high-rise buildings " as publication number, content comprises fire fighting supply subsystem, fire-fighting RACS, indoor fire-fighting subsystem, exterior wall sensing subsystem and exterior wall water curtain subsystem etc.Publication number is the utility model patent " protector of external wall of high-rise building fire " of CN202086982U for another example, utilizing the super-pressure water pump is that the sprinkling endless tube that is installed on top of high-rise buildings supplies water, and sprays by being arranged on the drencher that sprays on endless tube the effect that realizes fire extinguishing and alleviate fire spread.And publication number is the application for a patent for invention prospectus described " water curtain device for fire-fighting " of CN1391966A, is mainly in order to promptly cooling, the isolation of the inflammable and explosive Hazardous Chemical Substances of scene of fire, plays the effect that prevents that fire from spreading towards periphery fast.

The above patent does not all relate to the design of concrete water curtain sprinkling head, and traditional spray head is had relatively high expectations for the pressure of fire fighting supply, only just has better one-tenth curtain effect under the condition of certain operating pressure reaching.Such as, " protector of external wall of high-rise building fire (publication number CN202086982U) " needs to utilize the super-pressure water pump that is positioned at the bottom that fire demand water is delivered to building top, larger for high level or high-rise building operation easier, actual production efficient is not high.And the Water curtain system operating pressure of application example described in " water curtain device for fire-fighting (publication number CN1391966A) " is 2 ~ 5Mpa, and can only be used for ground, and the fire spread that can't be effective on the external wall vertical direction suppresses.Utility model " drencher (Granted publication CN2577899Y) " is based on conventional spray type sprinkler design, install cancave cambered surface additional after spray-hole, to reach dispersion effect, because spray-hole aperture ratio fire fighting supply pipeline size is little, this kind shower nozzle still can't overcome the drawback that hydraulic pressure is had relatively high expectations, to the applicable restriction to some extent of fire of high-rise building.

Current common recognition for the high-rise fire preventing and controlling is that skyscraper should base oneself upon the fire self-rescue mechanism innovation, and the putting out a fire to save life and property to attack within and outside of fire matched.The inner fire fighting device of modern high-rise building is day by day perfect, but the altitude capability of outside fire-fighting lifting vehicle does not catch up with the high development of skyscraper far away.Therefore, rely on outside water supply still larger with the problem difficulty that solves outside fire spread.How to rely on the inner existing fire fighting device of skyscraper, put forth effort to improve limited fire demand water deposit, the effective fire prevention isolation of design etc. are the starting points of high building fire fighting work.

For Technical Reference being provided for the external wall of high-rise building fire-fighting work, and provide more wide application space for having fire prevention now, the characteristics that the utility model spreads from fire of high-rise building and shower nozzle to become the aspects such as curtain mechanism be point of penetration, proposed to be applicable to the novel spraying technique under low pressure fire fighting supply condition on skyscraper, novel water curtain sprinkling head has been invented in design.

Summary of the invention

Can not better be applicable to the problem of fire of high-rise building for solving existing applicator, the utility model provides a kind of centrifugal flow guiding formula water curtain for fire-proof sprinkler head with arc spout.

To achieve these goals, the technical solution adopted in the utility model is as follows: a kind of centrifugal flow guiding formula water curtain for fire-proof sprinkler head with arc spout comprises nozzle housing and sprinkler core;

Described nozzle housing comprises base, packing ring, water inlet pipe mouth, tapered cap and water outlet cover plate, water inlet pipe mouth in inside or the outer setting screw thread with the convenient firemain system that directly accesses, tapered cap is forming of 45 taper seats of spending by semiapex angle, and the outflow cover for water board diameter is consistent with base cylinder nullisomic with angle;

described sprinkler core comprises sprinkler core main body, shunting fin, the first straight distributing fin, the second straight distributing fin, the 3rd straight distributing fin, the 4th straight distributing fin, the first bent distributing fin, the second bent distributing fin, the 3rd bent distributing fin, the 4th bent distributing fin, four isosceles right angle braces and two level and smooth circular cone sides, the sprinkler core main body is cone, sprinkler core one side is outlet side, the relative opposite side of outlet side is dorsal part, the shunting fin is positioned at the sprinkler core top, it is parallel with the sprinkler core center line, and the length of itself and sprinkler core center line vertical direction equals the water inlet pipe mouth internal diameter, and height is lower than the water inlet pipe mouth upper end, its effect is that the fire-fighting water is imported respectively first passage and second channel, third channel, outlet side is provided with the first straight distributing fin, the second straight distributing fin, the 3rd straight distributing fin, the 4th straight distributing fin, the first straight distributing fin forms straight distributing fin one with being connected after straight distributing fin connects, the 3rd straight distributing fin connects the rear straight distributing fin two that forms with the 4th straight distributing fin, and straight distributing fin one and straight distributing fin two angle between sprinkler core bottom surface projection are 60 degree, the angular bisector of this angle is datum line A, straight distributing fin one forms described first passage with straight distributing fin two, wherein the first straight distributing fin by a level and smooth circular cone side with shunt fin and be connected, the 3rd straight distributing fin is connected with the shunting fin by another level and smooth circular cone side, the curve distributing fin that the dorsal part setting of sprinkler core is comprised of the first bent distributing fin, the second bent distributing fin, the 3rd bent distributing fin, the 4th bent distributing fin, wherein the first bent distributing fin and the 3rd bent distributing fin be in the semiellipse that is projected as of bottom surface, and this semielliptical elliptical center point is positioned at the center of circle, sprinkler core bottom surface, the second bent distributing fin and the 4th bent distributing fin are circular arc, above-mentioned each straight distributing fin be connected that the distributing fin end connects base distributing fin on fins and base by four isosceles right angles and two ends of packing ring contact, above-mentioned each straight distributing fin and bent distributing fin adopt stainless steel or other materials to process and be welded on tap web body side, described sprinkler core effect is equal to the taper seats intercepting gained that the use semiapex angle is 45 degree, sealing effectiveness in the time of can guaranteeing to contact with tapered cap,

Base comprises the first base distributing fin, the second base distributing fin and base body; The first base distributing fin, the second base distributing fin can be fixed on the base body by welding manner, both are symmetrical with datum line A in the bottom surface projection, both angles are 60 degree, base body comprises cylinder, fan-shaped round nullisomic and cylinder round platform, the cylindrical radius of fan-shaped round nullisomic radius ratio is large, and fan-shaped round nullisomic is identical with the cylinder center of circle, cylinder round platform center is provided with 1 screwed hole, is used for connecting base and sprinkler core;

Sprinkler core is bolted to connection on the base of nozzle housing, sprinkler core is placed on along on fire-fighting entry center line, being the sprinkler core center line overlaps with access centre of conduit line, and fire-fighting entry center line and institute water receiving pipe center line be for overlapping, and the cone semiapex angle is 45 to spend;

After tapered cap is installed on base, its inner surface end in contact just and on each distributing fin on sprinkler core.The water inlet pipe mouth of upper end higher than the part of shunting fin in order to surface or outer surface machining screw within it, so that the access fire main.

Wherein, base utilizes bolt to be connected by packing ring and tapered cap.

Wherein, described sprinkler head utilizes bolt with each assembling parts, can be at the upper surface of each straight, curved distributing fin during assembling, level and smooth circular cone side, the side of shunting fin, and the packing ring upper and lower surface smears water-insoluble fluid sealant, with the sealing between the slippery inner surface of the inner surface that guarantees itself and tapered cap and water inlet pipe mouth.

By reference to the accompanying drawings, the utility model provides a kind of water curtain for fire-proof sprinkler head with arc spout, comprises nozzle housing and sprinkler core 10;

Described nozzle housing comprises base, packing ring 25, water inlet pipe mouth 29, tapered cap 27 and water outlet cover plate 30, water inlet pipe mouth 29 internal diameter 10 ~ 25mm, in inside or the outer setting screw thread with the convenient firemain system that directly accesses, tapered cap 27 is forming of 45 taper seats of spending by semiapex angle, and inner surface and base 19 joint circle diameters are 24 ~ 54mm, and it is 28 ~ 58mm that outer surface and base 19 intersect circular diameter, water outlet cover plate 30 diameters are consistent with base 19 cylinder nullisomics with angle, and thick is 2mm;

described sprinkler core 10 comprises sprinkler core main body, shunting fin 14, the first straight distributing fin 11-a, the second straight distributing fin 11-b, the 3rd straight distributing fin 12-a, the 4th straight distributing fin 12-b, the first bent distributing fin 15-a, the second bent distributing fin 15-b, the 3rd bent distributing fin 16-a, the 4th bent distributing fin 16-b, four isosceles right angle braces (11-c, 12-c, 15-c, 16-c) and two level and smooth circular cone sides 13, the sprinkler core main body is cone, sprinkler core one side is outlet side, the relative opposite side of outlet side is dorsal part, shunting fin 14 is positioned at the sprinkler core top, it is parallel with the sprinkler core center line, the length of itself and sprinkler core center line vertical direction equals water inlet pipe mouth 29 internal diameters, and its effect is that the fire-fighting water is imported respectively first passage 17 and second channel 18-a, third channel 18-b, outlet side is provided with the first straight distributing fin 11-a, the second straight distributing fin 11-b, the 3rd straight distributing fin 12-a, the 4th straight distributing fin 12-b, the first straight distributing fin 11-a forms straight distributing fin one with being connected after straight distributing fin 11-b connects, the 3rd straight distributing fin 12-a connects the rear straight distributing fin two that forms with the 4th straight distributing fin 12-b, and straight distributing fin one and straight distributing fin two angle between sprinkler core bottom surface projection are 60 degree, the angular bisector of this angle is datum line A, straight distributing fin one forms described first passage 17 with straight distributing fin two, wherein the first straight distributing fin 11-a by a level and smooth circular cone side 13 with shunt fin 14 and be connected, the 3rd straight distributing fin 12-a is connected with shunting fin 14 by another level and smooth circular cone side 13, the curve distributing fin that the dorsal part setting of sprinkler core is comprised of the first bent distributing fin 15-a, the second bent distributing fin 15-b, the 3rd bent distributing fin 16-a, the 4th bent distributing fin 16-b, wherein the first bent distributing fin 15-a and the 3rd bent distributing fin 16-a are in the semiellipse that is projected as of bottom surface, and this semielliptical elliptical center point is positioned at the center of circle, sprinkler core bottom surface, and the transverse radius is 6 ~ 18mm, minor axis radius is 5 ~ 13mm, the second bent distributing fin 15-b and the 4th bent distributing fin 16-b are circular arc, above-mentioned each straight distributing fin be connected that the distributing fin end connects base distributing fin on fins and base by four isosceles right angles and two ends of packing ring contact, above-mentioned each straight distributing fin and bent distributing fin thickness are 0.5 ~ 1mm, height is 2mm, adopt stainless steel or other materials to process and be welded on tap web body side, described sprinkler core 10 effects are equal to the taper seats intercepting gained that the use semiapex angle is 45 degree, sealing effectiveness in the time of can guaranteeing to contact with tapered cap 27,

base comprises the first base distributing fin 21-a, the second base distributing fin 21-b and base body 19, the first base distributing fin, the second base distributing fin can be fixed on base body 19 by welding manner, both are symmetrical with datum line A in the bottom surface projection, both angles are 60 degree, base body comprises cylinder 22, fan-shaped round nullisomic 23 and cylinder round platform, cylinder 22 bottom surface diameters are 28 ~ 58mm, high 2mm, the radius of fan-shaped round nullisomic 23 radius ratio cylinders 22 is large, size is 19 ~ 34mm, fan-shaped round nullisomic 23 is identical with cylinder 22 centers of circle, cylinder round platform diameter 20 ~ 50mm, high 2mm, cylinder round platform center is provided with 1 2mm screwed hole 24, be used for connecting base and sprinkler core 10,

Sprinkler core is bolted to connection on the base 19 of nozzle housing, sprinkler core is placed on along on fire-fighting entry center line, being the sprinkler core center line overlaps with access centre of conduit line, fire-fighting entry center line and institute water receiving pipe center line are for overlapping, the oral siphon internal diameter is 10 ~ 25mm, sprinkler core facies basialis pyramidis internal diameter is 20 ~ 50mm, and the cone semiapex angle is 45 degree, is highly 10 ~ 25mm;

After tapered cap 27 is installed on base 19, its inner surface end in contact just and on each distributing fin on sprinkler core.The tapered cap upper end entry mouth of pipe 29 arranges screw thread higher than the part of shunting fin 14 at inner surface or outer surface, so that the access fire_fighting pipe network.

The beneficial effects of the utility model:

This spray head design is take the vertical fire control of skyscraper as application background, to invent described sprinkler head and be installed on building exterior wall surface, during breaking out of fire, spray head is opened, the fire extinguishing water curtain is sprayed onto the exterior wall vertical walls, and spreads into exterior surface of wall downwards along the external wall structure rapid vertical.Its fire preventive and therapeutic effect major embodiment is both ways: the zone of burning is not yet occuring, applying water curtain sprinkling and can drench the combustible surface, reducing the temperature on combustible surface, making combustible be difficult to be lighted, and then stop flame to spread up fast; Be the inhibition for the combustion zone on the other hand, water spray can enter the combustion zone, and covers the surface of combustible, and the temperature on fast reducing combustible surface is stamped out the flames.Moisture film covers the combustible surface can also effectively completely cut off air and heat radiation, suppress the intensity of a fire continue spread.This kind fire-fighting mode is simple, efficient, can take full advantage of fire demand water, occur for prevention exterior wall vertical elevation fire, and spreading of inhibition vertical direction fire has positive effect.

Because water curtain can be present in around exterior wall as a face, this spreads for following flame, the fiery overflow as indoor fire from window to exterior wall, and fire-propagation of vertical wall surface etc. has good iris action.Coordinate that existing fire prevention is corniced, the fire protection design of window still wall etc., can mutually coordinate, mutually promote, realize more efficiently fire prevention, fire extinguishing target.

In addition, by means of existing fire prevention measure, be installed on (Granted publication CN 202010380U on portable fire damping parts such as changing applicator, utility model patent " the external mobile fire-fighting fire extinguishing water curtain system of skyscraper "), can be engaged in the work of putting out a fire to save life and property of fire in back-fire relief, for conventional art brings innovation, more help the prevention of external wall of high-rise building fire and put out a fire to save life and property.

The design of this kind spray has overcome the drawback that traditional spray head can not effectively be applicable to the vertical walls fire, is improvement and design towards current fire of high-rise building.This spray head can effectively suppress the fire spread of external wall of high-rise building, reduces casualties and property loss that fire of high-rise building brings.

Description of drawings

Fig. 1 is the sprinkler core structural representation.

Fig. 2 is sprinkler core and distributing fin bottom surface perspective view.

Fig. 3 is shower nozzle understructure schematic diagram.

Fig. 4 is the packing ring schematic diagram.

Fig. 5 is the sprinkler cap schematic diagram.

Fig. 6 is the whole assembling of shower nozzle schematic diagram.

The specific embodiment

Further illustrate the utility model below in conjunction with the drawings and specific embodiments.

A kind of water curtain for fire-proof sprinkler head with arc spout comprises nozzle housing and sprinkler core, and nozzle housing comprises base, packing ring, tapered cap, the sprinkler core main body is cone, outlet side and dorsal part are provided with distributing fin, and sprinkler core is bolted to connection in the nozzle housing base, wherein:

Place the Conic nozzle core along fire-fighting entry center line in the shower nozzle cavity, the sprinkler core center line overlaps with institute water receiving pipe center line, and the oral siphon internal diameter is 10 ~ 25mm, and sprinkler core facies basialis pyramidis internal diameter is 20 ~ 50mm, and the cone semiapex angle is 45 to spend, and is highly 10 ~ 25mm; Outlet side is arranged on the straight distributing fins that angle between the projection of bottom surface is 60 degree, sees 11-a in Fig. 1,11-b, 12-a, 12-b, and wherein distributing fin 11-a, 12-a are connected with shunting fin 14 by level and smooth circular cone side 13, and 17 is the delivery port of this passage; The distributing fin that the dorsal part setting of sprinkler core outlet is comprised of 15-a, 15-b, 16-a, 16-b, its projection on the bottom surface is as shown in Fig. 2 (label still arranges to simplify statement with reference to schematic diagram 1), wherein 15-a and 16-a are in the semiellipse that is projected as of bottom surface, the elliptical center point is positioned at the center of circle, bottom surface, and the transverse radius is 6 ~ 18mm; Minor axis radius is 5 ~ 13mm; 15-b and 16-b are circular arc, and its center of circle is some P1, P2 perpendicular bisector and a datum line B intersection point, and radius is about 6 ~ 22mm; Distributing fin 11,12,15,16 thickness are 0.5 ~ 1mm, and height is 2mm, adopt stainless steel or other materials to process and be welded on tap web body side.Its upper surface is that the inclination angle is 45 degree, and effect is equal to that to use semiapex angle be the taper seats intercepting gained of 45 degree, and this angle of inclination can guarantee and bore cap sealing effectiveness when contacting.14 are the shunting fin, and its effect is with fire-fighting water difference introduction channel 17 and 18-a, 18-b.Material sprinkler core bottom is provided with the 2mm screwed hole, is bolted in the nozzle housing base.The shower nozzle base comprises that distributing fin 21-a, 21-b and base body 19 form as shown in Figure 3.Distributing fin can be fixed on the base body by modes such as welding, and both are symmetrical with datum line A in the bottom surface projection, and angle is 60 degree, and it extends the center that the intersection intersection point just is positioned at screwed hole 24.Dotted line L1 and L2 are that packing ring 22 is positioned over after base the intersection with base, and L1, L2 angle are 120 degree, and intersection point is also screwed hole 24 centers.Base body comprises cylinder 22, fan-shaped round nullisomic 23 and cylinder round platform.Cylinder 22 bottom surface diameters are 28 ~ 58mm, high 2mm, and circle nullisomic radius is 19 ~ 34mm.Head body is provided with 71 ~ 2mm screwed holes 20 and is used for connecting sprinkler cap and packing ring.Cylinder round platform diameter 20 ~ 50mm, high 2mm.Base 19 centers are provided with 1 2mm screwed hole, are used for connecting base and sprinkler core 10.

Described shower nozzle base utilizes bolt to be connected by packing ring 25 with sprinkler cap 27, gasket construction as shown in Figure 4, have 71 ~ 2mm screwed holes on it, wherein two are positioned at the packing ring end, all the other five evenly are arranged on semicircle every 45 degree, and the center of circle of five screwed holes is positioned on the circle that diameter is 26 ~ 56mm.Washer body comprises that internal diameter is 20 ~ 50mm, and external diameter is the end portion of 28 ~ 58mm annulus part and both sides.Packing ring is thick is 2mm, the wide 4mm of main part, and two ends are welded with the water conservancy diversion end that the cross section is 2mm * 2mm, and end profile is projected as L1, L2 in the bottom surface, and angle is 120 degree.

Described nozzle housing cone cap portion structure comprises water inlet pipe mouth 29 as shown in Figure 5, tapered cap 27 and water outlet cover plate 30, and main body has 1 ~ 2mm screwed hole in bottom surface and packing ring, base same position.Water inlet pipe mouth internal diameter 10 ~ 25mm, in inside or the outer setting screw thread with the convenient firemain system that directly accesses.Tapered cap 27 is the forming of taper seats of 45 degree by semiapex angle, and its height is 1/2 of tap web cone height, and inner surface and base plate joint circle diameter are 24 ~ 54mm, and the crossing circular diameter in outer surface and bottom surface is 28 ~ 58mm.Water outlet cover plate 30 diameters are consistent with base cylinder nullisomic with angle, and thick is 2mm.After tapered cap is installed on base, its inner surface end in contact (Fig. 6) just and on the distributing fin on tap web.

Described shower nozzle utilizes bolt with each assembling parts, can be at distributing fin 11 during assembling, 12,15,16 upper surface, curved surface 13, the side of shunting fin 14, and the packing ring upper and lower surface smears water-insoluble fluid sealant, with the sealing between the slippery inner surface of the inner surface that guarantees itself and tapered cap and water inlet pipe mouth.

This invention the set goal is to utilize limited fire demand water deposit to produce water curtain sprinkling in the situation that hydraulic pressure is lower, therefore the emphasis of design is how to reduce as much as possible energy loss, how to guarantee to produce water spray, and guarantee that the spray water curtain is even etc.The utility model is that above technological means and the Technological improvement plan that requires to take of realization mainly comprises:

Fire demand water is after pipeline flows into spray head, do not pass through the design that reduces caliber that general shower nozzle (number being the patent of CN2577899Y as aforementioned Granted publication) is taked, such benefit is that the requirement for intake pressure obviously reduces, and reduces to a certain extent the energy loss of bringing due to impact.

The inner employing of shower nozzle cone is the main body of sprinkler core, and fire-fighting current can effectively disperse under the impact of smooth taper seat.The semiapex angle of tap web cone is 45 degree, the purpose of doing like this is: the current of avoiding on the one hand causing because cone angle is excessive approach and vertically impact the energy loss that taper seat brings, thereby cause energy loss because vertical velocity impacts with base greatly after can avoiding on the other hand causing because cone angle is too small current to flow through taper seat.

Be provided with guiding gutter on the outer surface of sprinkler core, the shower nozzle outlet is divided into 3 parts, under the effect of shunting fin 14, the water of half flows out by passage 17, produce continuous current outside spout, remainder flows out through passage 18-a and 18-b respectively, and such diversion Design can guarantee the reasonable distribution of the water yield of three outlets, is conducive to shower nozzle and produces uniform water curtain sprinkling effect.

Distributing fin on sprinkler core is based on centrifugal design, wherein 15-a and 16-a are semiellipse, current will spontaneously flow toward lower (major axis end points) in this zone, and continue to flow after the junction with 15-b, 16-b in process, in this process, water droplet is done the circumference screw around the cone height azimuth axis, and moving radius is increasing, analyzing the stressing conditions of water droplet in this motion process can know, do not have enough external force to provide centripetal force for the circular motion of current, therefore, in the situation that speed is increasing, current will be made centrifugal motion.Especially, current speed when arriving the bottom surface reaches maximum, and the effect of centrifugal motion will make current break away from sprinkler core and spray along spout.

In the utility model, the shower nozzle outlet angle of divergence is set to 120 degree.If the angle of divergence arranges excessive, as near 180 the degree, the current at two ends will outwards be dispersed, the uniformity of water curtain on direction of advance is relatively poor, also easily causes the waste of water resource; If the angle of divergence arranges too small, easily cause the coverage rate of water curtain too little, be unfavorable for the practical application in the fire-fighting fire extinguishing process.

Utilize the related sprinkler head of the utility model, the liquid extinguisher that sprays can form a fan-shaped water curtain, when the suitable angle that tilts sprays to vertical wall, extinguishing chemical can uniform spreading be sprinkling upon action face and covers the combustible surface, and this kind distribution mode is very beneficial for putting out the combustible burning of vertical direction.This sprinkler head is applicable to water and MJPZ extinguishing chemical, be applicable to suppress the fire spread of vertical walls, can extinguish the blaze at short notice or suppress spreading fast of flame, utilization rate to extinguishing chemical is high, and the fire extinguishing cost is low, and is low to the hydraulic pressure requirement of fire demand water, installation, easy to use, flexible, the time-saving and efficiency is applicable to the control of the outer facade fire of skyscraper and puts out a fire to save life and property.

Embodiment 1:

Each modular construction comprises the fire-fighting sprinkler head base 19 of circular-arc nozzle referring to Fig. 1 ~ 6, packing ring 25, sprinkler core 10 and sprinkler cap 27.This example linking objective is internal diameter 10mm entry pipeline, and the shower nozzle base utilizes the stainless steel machining to get, and thickness is 2mm, and cylinder 22 diameters are 28mm, and cylinder nullisomic 23 radiuses are 19mm; Base central cylindrical boss diameter 20mm, high 2mm.Fin 21a and 21-b are long is 5mm, and thickness is 0.5mm; Base 20 centers are drilled with 2mm screwed hole 24, also are drilled with 1mm screwed hole 20 on every side.Packing ring adopts the stainless steel processing and fabricating, main body annulus part internal diameter 20mm, and external diameter 28mm, height is 2mm; Two end angle 120 degree, the end tangent plane is of a size of 2mm * 2mm.Each 1mm place arranges the 1mm screwed hole from packing ring two ends, every 45 degree, a 1mm screwed hole is set in the semicircular ring part.Place, screwed hole center of circle diameter of a circle is 26mm.The sprinkler core main body is that the bottom surface radius is 10mm, and height is the 10mm cone, and the diameter that bottom center has high 5mm is the screwed hole of 2mm.Flow deflector 11-a and 11-b, the thickness of 12-a and 12-b are 1mm, and length is 14.14mm, and it is that the isosceles triangle of 2mm connects on the right-angle side of fin 11-c, 12-c that end connects the right angle length of side.The long 10mm of shunting fin 14, high 10mm, thick 0.5mm is welded on 11-a and 12-a by circular cone flow deflector 13.Wherein flow deflector 13 thickness are 0.5mm, and place circular cone semiapex angle is 45 degree.Flow deflector 15-a, 16-a are in the semiellipse that is projected as of bottom surface, and major axis radius is 6mm, and minor axis radius is 5mm, the thick 0.5mm of fin, and high 2mm is welded to the cone surface.Fin 15-b, 16-b are projected as one section circular arc at the bottom surface semicircle, the center of circle is positioned on datum line B, radius is 6mm, the high 2mm of fin, thick 0.5mm, be welded to the junction of conical surface and 15-a, 16-a, it is that the isosceles triangle of 2mm connects on the right-angle side of fin 15-c, 16-c that end connects the right angle length of side.Sprinkler cap oral siphon internal diameter is 10mm, and the entry mouth of pipe 29 internal diameters are 10mm, pipe wall thickness 2mm, and tube outer surface is provided with the 14mm external screw thread, is connected with supply channel by connector.Cone cap 27 semiapex angles are 45 degree, and wall thickness 1.41mm is highly 5mm, and it is 24mm that circular diameter is intersected in inner surface and bottom surface, and it is 28mm that circular diameter is intersected in outer surface and bottom surface.Water outlet cover plate 30 is outer radius 19mm, and inside radius is 14mm, and thickness is the cylinder nullisomic of 2mm, is welded on tapered cap.The tapered cap bottom surface has the screwed hole of 5 1mm, and water outlet cover plate two ends also have 2 1mm screwed holes, position and base and packing ring the screwed hole position corresponding one by one.

Above-mentioned parts are bolted, and smear water-insoluble fluid sealant or place frivolous rubber sheet gasket in the packing ring upper and lower surface, to guarantee the sealing between connector.

During use, fire demand water will produce a fan-shaped water curtain face after flowing out shower nozzle, and this water curtain face can serve as fire damping, weaken or stop the fast propagation on vertical body of wall such as propagation of flame, fiery overflow.Certain angle sprays to body of wall as shower nozzle is tilted, water curtain with will spread downwards along vertical walls after vertical body of wall clashes into, make water can be sprayed onto surface of wall and cover surface of wall, can effectively suppress the propagation of flame of vertical body of wall, fire extinguishing is rapid, and fire-fighting efficiency is high.

Embodiment 2:

Fire-fighting water inlet pipe mouth internal diameter is 20mm, and this size also is doubly amplifies the grade of example 1 middle part sub-unit.Be 40mm as sprinkler core cone bottom surface diameter, height is 20mm, and bent distributing fin 15-a, 16-a major axis radius are 12mm, and minor axis radius is 10mm, and bent distributing fin 15-b, 16-b radius are 12mm.Wherein the height of fin and thickness remain unchanged, and other sizes are made corresponding grade and doubly enlarged.The main situation of change of miscellaneous part is: base cylinder thickness is 2mm, and diameter is 48mm, the high 2mm of round platform, diameter 40mm.Cylinder nullisomic 23 radiuses are 29mm, thick 2mm.Gasket width is 4mm, interior circular diameter 40mm, and outside diameter 48mm, high 2mm, thread center's point place diameter of a circle is 46mm.The water inlet pipe mouth internal diameter of sprinkler cap is 20mm, and external diameter 24mm, outer surface are provided with external screw thread and are connected with supply channel by parts.The tapered cap height is 10mm, and it is 44mm that circular diameter is intersected in inner surface and bottom surface, and it is 48mm that circular diameter is intersected in outer surface and bottom surface, and cone cap semiapex angle is 45 degree, wall thickness 1.41mm.The outlet cap board size is identical with base circle nullisomic, and inside radius is 24mm, and outer radius is 29mm, and thickness is 2mm.Sprinkler cap bottom surface screwed hole arranges with reference to packing ring screwed hole position.

Assembling mode and other are with embodiment 1.

Claims (3)

1. the centrifugal flow guiding formula water curtain for fire-proof sprinkler head with arc spout, comprise nozzle housing and sprinkler core (10); It is characterized in that:

Described nozzle housing comprises base, packing ring (25), water inlet pipe mouth (29), tapered cap (27) and water outlet cover plate (30), water inlet pipe mouth (29) in inside or the outer setting screw thread with the convenient firemain system that directly accesses, the taper seat that tapered cap (27) is 45 degree by semiapex angle forms, and water outlet cover plate (30) diameter is consistent with the cylinder nullisomic (23) on base (19) with angle;

described sprinkler core (10) comprises sprinkler core main body, shunting fin (14), the first straight distributing fin (11-a), the second straight distributing fin (11-b), the 3rd straight distributing fin (12-a), the 4th straight distributing fin (12-b), the first bent distributing fin (15-a), the second bent distributing fin (15-b), the 3rd bent distributing fin (16-a), the 4th bent distributing fin (16-b) and two level and smooth circular cone sides (13), and four isosceles right angle connection fin (11-c, 12-c, 15-c, 16-c), the sprinkler core main body is cone, sprinkler core one side is outlet side, the relative opposite side of outlet side is dorsal part, shunting fin (14) is positioned at the sprinkler core top, it is parallel with the sprinkler core center line, and the length of itself and sprinkler core center line vertical direction equals water inlet pipe mouth (29) internal diameter, and its height is lower than water inlet pipe mouth (29) upper end, its effect is that the fire-fighting water is imported respectively first passage (17) and second channel (18-a), third channel (18-b), outlet side is provided with the first straight distributing fin (11-a), the second straight distributing fin (11-b), the 3rd straight distributing fin (12-a), the 4th straight distributing fin (12-b), the first straight distributing fin (11-a) forms straight distributing fin two with being connected after straight distributing fin (11-b) connects straight distributing fin 1 the 3rd straight distributing fin (12-a) of rear formation and the connection of the 4th straight distributing fin (12-b), and straight distributing fin one and straight distributing fin two angle between sprinkler core bottom surface projection are 60 degree, the angular bisector of this angle is datum line A, straight distributing fin one forms described first passage (17) with straight distributing fin two, wherein the first straight distributing fin (11-a) is connected with shunting fin (14) by a level and smooth circular cone side (13), the 3rd straight distributing fin (12-a) is connected with shunting fin (14) by another level and smooth circular cone side (13), the curve distributing fin that the dorsal part setting of sprinkler core is comprised of the first bent distributing fin (15-a), the second bent distributing fin (15-b), the 3rd bent distributing fin (16-a), the 4th bent distributing fin (16-b), wherein the first bent distributing fin (15-a) and the 3rd bent distributing fin (16-a) be in the semiellipse that is projected as of bottom surface, and this semielliptical elliptical center point is positioned at the center of circle, sprinkler core bottom surface, the second bent distributing fin (15-b) is circular arc with the 4th bent distributing fin (16-b), above-mentioned each straight distributing fin be connected that the distributing fin end connects base distributing fin (21-a, 21-b) on fins (11-c, 12-c, 15-c, 16-c) and base by four isosceles right angles and two ends of packing ring (25) contact, above-mentioned each straight distributing fin and bent distributing fin adopt stainless steel or other materials to process and be welded on tap web body side, described sprinkler core (10) effect is equal to that to use semiapex angle be the taper seats intercepting gained of 45 degree, can guarantee and tapered cap (27) sealing effectiveness when contacting,

Base comprises the first base distributing fin (21-a), the second base distributing fin (21-b) and base body (19); The first base distributing fin, the second base distributing fin can be fixed on base body (19) by welding manner, both are symmetrical with datum line A in the bottom surface projection, both angles are 60 degree, base body comprises cylinder (22), fan-shaped round nullisomic (23) and cylinder round platform, the radius of fan-shaped round nullisomic (23) radius ratio cylinder (22) is large, fan-shaped round nullisomic (23) is identical with cylinder (22) center of circle, cylinder round platform center is provided with 1 screwed hole (24), is used for connecting base and sprinkler core (10);

Sprinkler core is bolted to connection on base (19) in nozzle housing, sprinkler core is placed on along on fire-fighting entry center line, being the sprinkler core center line overlaps with access centre of conduit line, and fire-fighting entry center line and institute water receiving pipe center line be for overlapping, and the cone semiapex angle is 45 to spend;

Tapered cap (27) is installed on base (19) afterwards, its inner surface end in contact just and on each distributing fin on sprinkler core.

2. a kind of centrifugal flow guiding formula water curtain for fire-proof sprinkler head with arc spout according to claim 1, it is characterized in that: base utilizes bolt to be connected by packing ring (25) with tapered cap (27).

3. a kind of centrifugal flow guiding formula water curtain for fire-proof sprinkler head with arc spout according to claim 1, it is characterized in that: described sprinkler head utilizes bolt with each assembling parts, can be at the upper surface of each straight, curved distributing fin during assembling, level and smooth circular cone side (13), the side of shunting fin (14), and the packing ring upper and lower surface smears water-insoluble fluid sealant, with the sealing between the slippery inner surface of the inner surface that guarantees itself and tapered cap and water inlet pipe mouth.

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