CN100460035C - Multi-nozzle enclosed type middle and low pressure water mist sprayer - Google Patents
Multi-nozzle enclosed type middle and low pressure water mist sprayer Download PDFInfo
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- CN100460035C CN100460035C CNB2005100967716A CN200510096771A CN100460035C CN 100460035 C CN100460035 C CN 100460035C CN B2005100967716 A CNB2005100967716 A CN B2005100967716A CN 200510096771 A CN200510096771 A CN 200510096771A CN 100460035 C CN100460035 C CN 100460035C
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Abstract
The invention relates to a multi-jet enclosed medium-low-pressure atomizing head used in fire-fighting automatically spraying to extingiush fire. The invention comprises injector stand, sealing element, intermediate cavity, atomizer, injector framework and temperature-sensing support and has the following settings: the inner of injector stand equipping center bore and imports and exports, inlet of intermediate cavity connecting with outlet of center bore, sealing element locating in intermediate cavity, sealing element plugging center bore outlet, the bottom of intermediate cavity equipping via hole and its outlet connecting with the inlet of atomizer via channel or cavity, equipping two atomizers at least, equipping water channel in atomizer, water channel connecting with atomizer sprayer, one side of sprayer framework being fixed under sprayer and the other side supporting temperature-sensing support, and temperature-sensing support being located between injector framework and sealing element.
Description
Technical field
The present invention relates to the fine mist spray head that can open the eruption fire extinguishing automatically that a kind of fire-fighting is used, especially relate to a class multi-nozzle enclosed type mesolow fine mist spray head.
Background technology
Shower nozzle is the key component of self-extinguishing equipment terminal, and it is installed in the protection scene and is used for sprinkling fire, is determining the working method and the fire extinguishing effect of fire-fighting system.The shower nozzle that is widely used in automatic sprinkler system has two big classes: a class is the sprinkler tip of enclosed.Another kind of is the water smoke or the fine mist spray head of open type.
Sprinkler tip belongs to the low pressure automatic sprinkler, and it is plugged spout at ordinary times, and the temperature-sensitive assembly of temperature-sensitive comes off and opens spout when catching fire, and emits the water impact splash box, to around fire extinguishing water.Application number is that a kind of sharp formula mist automatic sprinkler that dabbles that ejects has been announced in the application for a patent for invention of CN200410041981.0, its structure and existing sprinkler tip are basic identical, just increased and eject sharp device, this can prevent to be deposited on the splash box when sealing column from falling, and can improve the effect that dabbles.But its flow of way and the degree of atomization that only depend on single hole water impact splash box or spatter mist awl condition each other, and the atomizing effect difficulty is good, and it also belongs to follow-on sprinkler tip or watering spray painting head in essence.The advantage of sealed sprinkler head is that each shower nozzle can erupt from main control according to the temperature at place, place, and its shortcoming is that water is many, water droplet big, water pollutes greatly the oil that is not suitable for going out, gas, electric information fire.
The water spray shower nozzle is the mesolow deluge system, and it can spray the big water smoke that big grain drips, and its flow is big, degree of atomization is poor, and water consumption and water mark pollute also very serious.The spout of water spray shower nozzle is often opened, as long as turn on pump is driven main valve, all the water spray shower nozzles in the whole fire-fighting district will erupt simultaneously, so relatively suit it is installed in the centralized space, protection is the high fire fire-fighting object of water funk pollution not.AS and water spray shower nozzle all can only use in the topical application system, and they only are fit to that water directly is sprayed onto the flame surface just can work, and can not do the catch fire total flooding sprinkling fire of target of misalignment.
At present, fine mist spray head generally is a deluge system, and the injection flow rate of fine mist spray head only is part to tens/one of sprinkler tip consumption, can clean and put out A, B, C and electric information fire fast.Water mist system can be used for the total flooding fire extinguishing, also can be used for local fire extinguishing, is to substitute the new technology of breathing out dragon and gradually substituting conventional fire-sprinkling system.
The patent application of fine mist spray head in recent years is more, and for example application number is CN02258972.4, and the patent application of CN03244446.X and CN03277532.6 has provided 3 kinds of deluge systems that go out the atomizing of stream bump by aperture pressure.Application number is that the shower nozzle that the patent application of CN03278717.0 is showed also is a kind of fine mist spray head, and it obtains thin water smoke by the twin-stage eddy current atomization, but they all are deluge systems.
More above-mentioned two big class shower nozzles their characteristics as can be seen are very inequality, and especially sprinkler tip is just in time fully opposite with the pluses and minuses of fine mist spray head.Advantage as sprinkler tip is intelligent (enclosed), operating on low voltage (water pump is easy to get, security is good, is suitable for civilian); Shortcoming is that injection flow rate is big, atomizing is poor, efficient is low, can only be used for local fire extinguishing.And that the advantage of fine mist spray head is a water is few, atomize, and also can be used for the total flooding fire extinguishing; Shortcoming right and wrong intelligent (open type), generally need in work under the high hydraulic pressure and could obtain the thin water smoke (high-pressure water is rare, and security is suitable for specific use not as low pressure) of getting well.If can get both length, remove both weak points, work out the advantage of the new collection of a class two class shower nozzles, and do not have their new type nozzle of shortcoming best.Analyze this shower nozzle according to reason and should be intelligent (enclosed), water few, atomize, also must adapt to common mesolow water source.
In fact the shower nozzle that many large-scale automatic sprinkler systems public or skyscraper all need have this function especially.Fire pump station is concentrated a place in this type of building, pipeline and shower nozzle then disperse to be installed on each room of every layer, can't use water smoke or fine mist spray head in this case, because which room they do not possess do not catch fire, the shower nozzle in which room erupts with regard to temperature-sensitive, and the shower nozzle in the room, other places is still closed the enclosed self-starting function that does not spray.If valuable and water funk article such as archive files, instrument and meter, computer installation are arranged in each room, the fire-fighting in this place also should not be used sprinkler tip, because its injection flow rate is big, the water pollution loss that its fire extinguishing water causes even is not second to fire.If it is also not all right to use the extinction using gas of water pollution-frees such as IG541 or FM200 instead, they are not only expensive, mesohigh is civilian feels unwell entirely, main shortcoming is the deluge system that also can only use neat spray to stop together, if using this gas extinguishing system can only be all eruption fire extinguishings simultaneously of all rooms of catching fire of a room, this is obviously not all right.Also there is not at present a kind of applicator that is well suited for above-mentioned special requirement in fact.
Summary of the invention
The objective of the invention is at the present situation that yet there are no available enclosed low pressure fine mist spray head in the existing automatic sprinkler system, a kind of temperature-sensing element control opener that has is provided, and can just can spray the new-type fire extinguishing sprayer of dense thin water smoke with a small amount of mesolow water, an i.e. class multi-nozzle enclosed type mesolow fine mist spray head, said mesolow is meant that pressure is less than 3.45Mpa.
The present invention is provided with nozzle boss, seal, intermediate cavity, atomizing core, shower nozzle framework and temperature-sensitive support member; Be provided with nozzle boss centre bore, the import of nozzle boss centre bore and the outlet of nozzle boss centre bore in the nozzle boss; Seal is located in the intermediate cavity, and seal blocks the outlet of nozzle boss centre bore or blocks the through hole of intermediate cavity bottom; The intermediate cavity import connects the outlet of nozzle boss centre bore, and the intermediate cavity outlet connects the import of atomizing core through passage or chamber; The atomizing core is established at least two, and the atomizing in-core is provided with water stream channel, water stream channel and atomizing core spout connection, the logical atmosphere of atomizing core spout; Shower nozzle framework one end is fixed on the shower nozzle below, and the shower nozzle framework other end supports the temperature-sensitive support member; The temperature-sensitive support member is between shower nozzle framework and seal, and the temperature-sensitive support member is used for supporting sealing member.
Seal blocks the outlet of nozzle boss centre bore, makes the fluid in the nozzle boss centre bore not enter intermediate cavity and atomizing core, and shower nozzle is in enclosed.The intermediate cavity bottom is provided with through hole, passes through for the seal bottom or for the joint portion of seal and temperature-sensitive support member or for temperature-sensitive support member top.When the temperature-sensitive support member reaches design temperature destruction, seal loses support and breaks away from from nozzle boss centre bore outlet, falls into the intermediate cavity bottom and blocks the through hole of intermediate cavity bottom, and nozzle boss centre bore outlet simultaneously is opened, intermediate cavity and the water inlet of atomizing core, shower nozzle is in the atomizing eruptivity of open type.
Seal can adopt the seal disc of packed-piston or magnetic tape trailer post.Can be provided with seal fitting on seal or on seal and the intermediate cavity or on the nozzle boss centre bore or on the pressure ring in the nozzle boss centre bore, seal fitting can adopt sealing ring or sealing gasket etc.
Intermediate cavity can adopt a kind of in the cylindrical cavity that the annular wall of ladder cylinder chamber, the band radiation groove of cylindrical cavity, band cannelure surrounds.
The water stream channel of atomizing in-core is for being selected from the circular jet nebulization channel, or liquid film jet atomization passage, or circular jet nebulization channel and the liquid film jet atomization channel group nebulization channel of synthesizing; Form the corresponding various atomizing cored structures of the present invention thus, for example the swirling flow atomizing core, mutually hit discharge orifice atomizing core, inside and outside eddy flow twin-stage atomizing core, the compound atomizing core of jet eddy flow, divide swirling flow atomizing core in swirl vane atomizing core, the twin-stage, hollow cone spiral atomizing core, eddy flow to hit stream twin-stage atomizing core mutually, be with bell-mouthed aperture atomizing core etc., the atomizing core that also available other type is suitable.
The temperature-sensitive support member is made of temperature-sensing element and supporting component, temperature-sensing element is selected from and reaches temperature-sensitive glass envelope or the fusible alloy that design temperature destroys immediately, supporting component is to be located to compress leverage or tightening mechanism on the shower nozzle framework, be used to regulate thrust and the tightness that seal is pressed in the outlet of nozzle boss centre bore, tightening mechanism can be selected for use and tighten screw etc.
Be provided with in the nozzle boss over against the intermediate cavity of nozzle boss centre bore outlet and built-in seal thereof, the atomizing core is located in the periphery wall of nozzle boss, and the passage of atomizing core import connects intermediate cavity or connects the outlet annular groove of intermediate cavity, the logical atmosphere of the spout of atomizing core.The shower nozzle framework is fixed in nozzle boss bottom, and seal is by being supported on that temperature-sensitive support member on the shower nozzle framework supports separately or by temperature-sensitive support member and the spring together support that is located in the intermediate cavity.When the temperature-sensitive support member reaches design temperature destruction, not throw off from the outlet of nozzle boss centre bore immediately with the seal of spring, the water that is enclosed in the nozzle boss centre bore enters intermediate cavity and the core that atomizes, and makes shower nozzle be in open type.When the seal of band spring has only hydraulic pressure to reach the spring setting value (as reaching 0.2Mpa), just leave from the outlet of nozzle boss centre bore, shower nozzle just begins eruption.The benefit one of band spring is to avoid pressing hour the shower nozzle atomization badness when system opens, cuts off the water; The 2nd, can share the load of hydraulic pressure in the temperature-sensitive support member shutoff nozzle boss centre bore, thereby improve the safe bearing capacity (bearing higher sprinkler pressure) of temperature-sensitive support member or improve its temperature-sensitive response speed (adopting thinner temperature-sensitive glass envelope) as sprinkler pressure is constant as temperature-sensitive glass envelope diameter is constant.Available intermediate cavity stepped cavity wall or do the seal positioning step with the annular groove open tubular column (referring to the piece number 16 of Fig. 1) of support spring, so that shower nozzle is when opening, the restriction seal moves down excessive, and spring is caused excess compression.
Shower nozzle is provided with sprayer body, sprayer body is positioned at the bottom and the periphery of nozzle boss, sprayer body and nozzle boss form the bowl-type chamber between the two, the intermediate cavity of built-in seal is positioned at bowl-type chamber central authorities and exports over against the nozzle boss centre bore, intermediate cavity is provided with the annular wall or with the annular wall of a plurality of radiation grooves, is communicated with circumferential weld between the outlet of nozzle boss centre bore by intermediate cavity annular wall top between intermediate cavity and the bowl-type chamber or adds by circumferential weld to radiate groove and be communicated with jointly; The atomizing core is located in the sprayer body periphery wall, and the import of atomizing core is communicated with intermediate cavity through the bowl-type chamber, the logical atmosphere of the spout of atomizing core, and the atomizing core is all kinds of atomizing cores that the present invention exemplifies, the atomizing core that also available other type is suitable.
In the nozzle boss centre bore, can be provided with screen pack or filter.
When the input shower nozzle be air-water two phase flow the time, be provided with in the nozzle boss centre bore and all steep device, be used for the bubble population of water is carried out refinement and homogenizing, all steeping device is the little volute spring oscillator of import large outlet, all steep device or all steep device, or all steep device for fixed or rotary type multi-disc vane for multichannel current-sharing barrier.
The atomizing core of enclosed fine mist spray head of the present invention is uniform to form uniform nozzle cluster on it; The atomizing core also can be uneven cloth setting, forms non-uniform nozzle cluster; Several atomizing cores on the shower nozzle can be congener, and also different types of atomizing core forms different nozzles, is used to produce the spraying matrix of required given shape; Shower nozzle can be made three-dimensional symmetric figure or asymmetric cuboid or polyhedron shape, shower nozzle can be made vertically arranged vertical type shower nozzle also can make the abutment wall side formula shower nozzle that level is installed, side formula shower nozzle can the level of establishing spatter the mist plate, be used to stop and the horizontal shower nozzle of sputter to the useless spraying of ceiling direction.
The atomizing core is with tangential through hole (groove) or pushes up the swirling flow atomizing core of oblique through hole, its overcoat is the ladder cylinder of large end thread, its inner chamber is hollow cylindrical, be provided with tangential through hole (groove) or push up oblique through hole in cylinder chamber circumferential wall or top, said tangential through hole (groove) or to push up the outer side bus of horizontal plane projection of oblique through hole approximate tangent with cylinder chamber wall inner periphery, there is the contraction conical nozzle in the in-core chamber that atomizes.Also can be laid with several ladder inclined holes around the above-mentioned atomizing core contraction shape spout, form cap jet, the spray nozzle that becomes the secondary collision atomizing with the diffusing cone skewed crossing of spout is bored in the circle convergence that these ladder inclined hole axis surround.Tangential hole atomizing core also can not established overcoat, tangential hole atomizing core chamber directly by circular hole on the nozzle boss perisporium and slitless connection the atomizing core cap that shrinks conical nozzle that has on circular hole form.
The atomizing core is to hit hole atomizing core mutually, its appearance is that big end is with externally threaded ladder short cylindrical, in establish the atomizing core in hollow cylindrical chamber, respectively be provided with many small through hole of evenly arranging on the tip circle face of its outer wall and the side circumferential wall, the axis of small through hole or in pairs vertically hand over mutually or in the vertical disk of atomizing core cavity axis, be the radial mutual friendship in center, or become with the core cavity axis greater than 35 ° of angles are uniform tiltedly to meet at mutually on the axis a bit, thereby form multiple head-on collision discharge orifice.
The atomizing core is inside and outside eddy flow twin-stage atomizing core, its appearance is that the ladder cylinder connects the inverted cone that bigger initial diameter is arranged, on the cylindrical cavity arm on atomizing core top, be arranged with the chamber in the approximate tangent eddy flow through hole of circle, the eddy flow through hole form the plane of eddy flow ring near below, cylinder chamber begins to be shrunk to atomizing in-core taper hole; Uniform many equidistant eddy flow grooves on the conical outer wall of atomizing in-core taper hole, eddy flow groove male cone (strobilus masculinus) is close on the bellmouth inwall in identical shaped atomizing core print seat hole; The cylindrical hole in atomizing core print seat hole communicates through whirl hole, eddy flow chamber and atomizing in-core taper hole with the annular chamber internal channel that forms between the core outside cylinder that atomizes, and the annular chamber outer tunnel communicates through the bellmouth outlet of eddy flow groove with atomizing core print seat hole; Atomizing in-core taper hole is positioned at the bellmouth outlet central authorities in atomizing core print seat hole, and both constitute nozzle jointly.
The atomizing core is the compound atomizing core of jet eddy flow, it is by atomizing core print seat hole and tangent with it whirl hole, and the atomizing core cap of band internal taper hole and contracting nozzle is formed with the fluidic channel that is positioned at atomizing core print seat hole central authorities, fluidic channel is jet orifice or is swirling flow atomizing core (referring to Figure 14), inside and outside eddy flow twin-stage atomizing core (referring to Figure 27), divide swirl vane atomizing core (referring to Figure 28～30), swirling flow atomizing core (referring to Figure 33) in the twin-stage, hollow cone spiral atomizing core (referring to Figure 35) that class atomizing core passage and spout, atomizing core print seat hole internal diameter is identical with the big footpath of core cap internal taper hole that atomizes and connect airtight, the jet of central authorities' fluidic channel and the taper hole eddy flow moisture film that whirl hole causes converge stack at the spout place during eruption, spout is gone out in rotation, forms a large amount of mists.
The atomizing core is for dividing swirl vane, dividing swirl vane to tell the two half elliptic blades that respectively account for half of reversed dip by upright flat flat both sides constitutes, the axis projection of atomizing core is a cylindrical that equates with atomizing core print seat hole internal diameter, divide the swirl vane close fit to be contained in the atomizing core print seat hole, two two semiellipse swirl vanes of handing over into 90 °～120 ° mutually constitute spout towards being with the atomizing core print seat hole exits that shrinks taper hole.
The atomizing core is a swirling flow atomizing core in the twin-stage, be provided with the back taper cover of two band cylindrical cavities, the contraction tapered sleeve of superposed one-level taper sheath is in the taper sheath of the second level, all be provided with tangential through hole or tangential groove on the cylinder wall of two-stage back taper cover, two-stage back taper cover integral installation is in atomizing core print seat hole, the core print seat hole that upwards atomizes, footpath is concentric with two-stage back taper trepanning three, axially go up first and second grade taper sheath aperture or concordant substantially, perhaps in the first order taper sheath aperture retraction second level taper mantle cavity, form spout.
The atomizing core is hollow cone spiral atomizing core, is provided with the cone of a conical cavity, is provided with a spiral groove on cone wall; The hollow cone spiral atomizing big end external diameter of core or with atomizing core print seat hole close join and integral installation in atomizing core print seat hole, or hollow cone spiral atomizing core has only big end to be contained in the atomizing core print seat hole, and the trough of belt cone directly is exposed in the atmosphere.
The atomizing core is that eddy flow hits stream twin-stage atomizing core mutually, eddy flow hits stream twin-stage atomizing core mutually and is provided with the atomizing stem stem, be provided with the cylindrical chamber of hitting mutually of band spout in atomizing stem stem lower central, hit mutually be arranged with around the chamber at least two have shrink the aperture hit the hole mutually, each hits centerline hole mutually and can meet at and hit the center, chamber mutually, hit hole middle part mutually at each the one less water inlet whirl hole of diameter that vertically communicates is with it arranged, the cylindrical of whirl hole is with to hit the hole side bus mutually tangent, the inlet of each whirl hole is positioned at the no spout Side on atomizing stem stem top, close joining of the external cylindrical surface of atomizing core is packed in the atomizing core print seat hole, and the straight-through atmosphere of spout that hits the chamber mutually forms nozzle.
Above-mentioned atomizing core print seat hole can be the core retainer plate that independently atomizes, and also can be installing hole.
The invention solves two difficult problems in the prior art.The firstth, fire extinguishing sprayer is efficient mistization and powerful ejection under mesolow, and theory and practice shows that all high-pressure atomization is easy, and the low pressure atomizing is difficult, and big density is flowed in the low pressure long drive, and to spray thin water smoke more difficult.The secondth, adopt suitable temperature-sensing element to form the temperature-sensitive support member of Rational structure, make it when catching fire, can control the atomising device eruption, and being closed, shower nozzle forms enclosed low pressure fine mist spray head.
The way that the present invention solves first difficult problem is: the futuramic brute force atomizing core that can both generate the thin water smoke of fire extinguishing under mesolow to different inlet flows.The structure of powerful atomizing core is: through atomizing core inlet opening that intermediate cavity and the outlet of nozzle boss centre bore link to each other, lead to special water stream channel in the core body, constitute atomization chamber, the spout of atomization chamber connects the nozzle of atmosphere, formation shower nozzle.For adapting to the needs of different situations, atomizing core of the present invention is except that utilizing pressure, eddy flow, bump and their atomizing functions such as compound action, also introduce the effervescent atomization function especially, for example when using heterogeneous air-water two phase flow, in system, take the special measure, also be provided with on the shower nozzle and all steep the device structure.By comprehensive atomizing structures such as multiply eddy flow, percussion flow, jet eddy flow, twin-stage eddy flow, awl spiral percussion flow and eddy flow percussion flows, carry out to be subjected to the brute force of temperature-sensing element control to atomize to single current or air-water two phase flow.
The way that the present invention solves second difficult problem is that suitable atomizing core is contained on the shower nozzle, and a packed-piston or a seal disc by the temperature-sensitive supports support is set, packed-piston or seal disc block nozzle boss centre bore outlet and the interior pressure flow body of nozzle boss centre bore with link to each other and vacant intermediate cavity separates, the straight-through atmosphere of the core spout that respectively atomizes that communicates with intermediate cavity through passage or chamber, shower nozzle is in enclosed; When reaching the damage of design temperature temperature-sensitive support member, packed-piston or seal disc lose and support and the outlet of disengaging nozzle boss centre bore, and the pressure flow body enters intermediate cavity and the core that atomizes, and shower nozzle is in the open type state of spraying; Owing to temperature-sensing element is to damage by the fixed temperature of setting to open shower nozzle, near more from flame, the temperature-sensing element heat damage is fast more, therefore when the fire extinguishing system of using shower nozzle of the present invention is met fire, near the scene of a fire shower nozzle will spray fine mist fire-fighting by opening shower nozzle successively from the distance of flame kernel, still do not close and do not spray and reach design temperature, thereby realized the self-starting enclosed function of fine mist spray head away from the shower nozzle of ignition point.
The present invention can inflate and do the dry system use, but also water-filling is done the wet pipe system use.The fire-fighting medium of shower nozzle input can be a pure water, can be the fire water liquid that contains additive, also can be mist flow or bubble stream that air water mixes, especially at low-pressure area, if want to spray the thin water smoke of big momentum, preferably import the dispergated air water stream of two-phase (as mist flow, bubble stream etc.).For saving air demand, can make the bubble stream and the shower nozzle effervescent atomization technology of water bag gas (water is continuous phase, and gas is decentralized photo).With traditional flow stream pressure that leans on, rotary centrifugal force, the atomizing of fluid impact force is different, effervescent atomization is a kind of novel interior lively power atomizing, its mechanism is: have a mind to be pressed into the many minute bubbles in the mixed flow, under the loss in head effect in the pipeline course of conveying, its surrounding fluid static pressure is gradually little, minute bubbles are the fragmentation of expansion limit while advancing, flow to the nozzle place, the periphery pressure jump is 0, Compressed Gas instantaneous expansion in the minute bubbles that cladded by moisture film, fried one's water breaks film, when exploding a large amount of thin water smokes also with the expanding gas preshoot, thereby strengthen the momentum of thin water smoke from the nozzle ejection.The benefit one of effervescent atomizer is that nozzle bore is difficult for greatly stopping up, and effervescent atomization makes the big spray orifice of low pressure can spray the also thin high momentum water smoke that sprays than the little spray orifice of high pressure, and its Suo Daer average diameter SMD can reach below the 100 μ m; The benefit two of effervescent atomizer is that the atomizing flow is big, and especially valuable is that its spraying momentum is big, and it is faster than the thin water smoke speed of high pressure aperture ejection, and jet length is far away, and the penetration power that enters flame is big, thereby fire-fighting efficiency is higher.But the two-phase mixed flow of bubble stream class is changeful, is difficult to control, very easily segregation and and gather into foam, so in system, taking measures, also need install the special device that all steeps the device class additional on the shower nozzle of use.When input media was bubble stream, the present invention is provided with suitable all bubbles device can spray ultra-fine air water mist, was particularly suitable for the fire-fighting object that water funk mark pollutes is done the total flooding fire extinguishing.
Thin water smoke of the present invention is meant that the cumulative volume percentage of institute's atomized water spray under operating pressure is Dv0.99≤1000 μ m.
The said mesolow of the present invention is meant the fluid pressure of nozzle boss porch, presses in belonging to when fluid pressure is 3.45～1.21Mpa, belongs to low pressure during less than 1.21Mpa, if only use fire water, then shower nozzle hydraulic pressure preferably is not less than 0.6Mpa.Maximum working pressure of the present invention is mainly determined with the safe load that can keep the automatic sprinkler positiver sealing by the safe bearing capacity of temperature-sensitive glass envelope.
Characteristics of the present invention: not only propose new atomizing theory, provide some novel atomising devices, main is that atomising mechanism that adhered to two class shower nozzles originally separately and enclosed self-starting mechanism are combined, form a class unique good function is arranged, be suitable for the thin water smoke or the thin water smoke multi-nozzle enclosed type of the gas shower nozzle of multiple medium and all kinds of mesolow water fire-fighting systems, the high request and the Performance-based Fire Protection Design that are fit to very much modern fire-fighting are used.
Compare with existing technical scheme, the present invention has the following advantages:
1, degree of atomization is all more much better than existing sprinkler tip and waterfog head, even a large amount of thin water smokes of ejection, its water consumption and water mark pollute also less.The present invention has the multiple advantage of sprinkler tip and the not available fine mist fire-fighting of waterfog head, as can be used for doing the total flooding fire extinguishing; Also can be used for the fire-fighting of water funk mark polluted place, have the environmental protection characteristic.
2, compare with existing fine mist spray head, the present invention has the not available temperature-sensitive self-starting function of general fine mist spray head and seals the automatic sprinkler function of not erupting at ordinary times.It is compared with most of high pressure fine mist spray heads, can spray the required thin water smoke of fire extinguishing under lower pressure of supply water.
3, compare with the high pressure enclosed fine mist spray head of external existing exploitation, the present invention does not adopt the single structure that only depends on the atomizing of aperture high pressure, shower nozzle of the present invention uses mesolow element and Mining to erupt with not susceptible to plugging big spout atomizing, effervescent atomization and enclosed low pressure and the level pressure start and stop are not trailed distinctive Comprehensive Control atomization techniques such as water, composition can satisfy several multi-nozzle enclosed type low pressure fine mist spray heads of different needs.They both can satisfy the specific (special) requirements of some fire-fighting object to fine mist fire-fighting, also can be used in easily in the civilian fire-fighting system that has common fire water supply, and needn't be in the face of the difficult problem of the civilian fire-fighting restriction of the difficult summation of the required high-pressure hydraulic pump of heavy pressure fine spray shower nozzle use high pressure.
4, the temperature control closed type structure of the present invention improvement that is the closed type structure of traditional sprinkler tip, can continue to use sprinkler tip easily uses ripe temperature-sensitive glass envelope or fusible alloy assembly to make the temperature-sensitive support member, and needn't develop new temperature-sensitive supporting member, thereby the cost that its exploitation is made is lower, safe and reliable.
Description of drawings
Fig. 1 is the multi-nozzle enclosed type mesolow fine mist spray head schematic diagram of loose joint shower nozzle framework at the bottom of the nozzle boss.
Fig. 1 .1 is the multi-nozzle enclosed type mesolow fine mist spray head schematic diagram of band jet swirling flow atomizing core.
Fig. 1 .2 is the I-I cutaway view of Fig. 1 .1.
Fig. 2 establishes the multi-nozzle enclosed type mesolow fine mist spray head schematic diagram of adjustable spring at the bottom of for nozzle boss.
Fig. 3 is the multi-nozzle enclosed type mesolow fine mist spray head schematic diagram of band plunger shape seal disc.
Fig. 4 is for being with the square shower nozzle schematic diagram of the thin water smoke of asymmetric multi-jet enclosed mesolow.
Fig. 5 is the upward view of Fig. 4.
Fig. 6 is that atomizing core and shower nozzle framework are located at the multi-nozzle enclosed type mesolow fine mist spray head schematic diagram on the sprayer body.
Fig. 7 is K-K cutaway view of Fig. 6.
Establish the tandem atomizing multi-nozzle enclosed type mesolow fine mist spray head schematic diagram of two kinds of atomizing cores on Fig. 8 nozzle boss and the sprayer body.
Fig. 9 is D-D cutaway view of Fig. 8.
Figure 10 is the multi-nozzle enclosed type mesolow fine mist spray head schematic diagram of band flare aperture.
Figure 11 is that the A of Figure 10 is to view.
Figure 12 is P-P cutaway view of Figure 10.
Figure 13 is T-T-T profile of Figure 10.
Figure 14 is a tangential hole swirling flow atomizing cored structure schematic diagram.
Figure 15 is the A-A profile of Figure 14.
Figure 16 is a tangential slot swirling flow atomizing cored structure schematic diagram.
Figure 17 is a top inclined hole swirling flow atomizing cored structure schematic diagram.
Figure 18 is the vertical view of Figure 17.
Figure 19 is for vertically hitting hole atomizing cored structure schematic diagram mutually.
Figure 20 is the E-E profile of Figure 19.
Figure 21 hits hole atomizing cored structure schematic diagram mutually for the center.
Figure 22 is the K-K profile of Figure 21.
Figure 23 hits hole atomizing cored structure schematic diagram mutually for oblique.
Figure 24 is the T-T-T profile of Figure 23.
Figure 25 is the structural representation of inside and outside eddy flow twin-stage atomizing core.
Figure 26 is the A-A profile of Figure 25.
Figure 27 is the structural representation of the another kind of mounting means of inside and outside swirling flow atomizing core.
Figure 28 is for dividing the structural representation of swirl vane atomizing core.
Figure 29 atomizes the G of core to view for Figure 28.
Figure 30 is the structural representation of the another kind of mounting means of branch swirl vane atomizing core.
Figure 31 is swirling flow atomizing cored structure schematic diagram in the band twin-stage.
Figure 32 is the D-D cutaway view of Figure 31.
Figure 33 is the another kind of mounting means of swirling flow atomizing core in the twin-stage and the schematic diagram of structure.
Figure 34 is the F-F cutaway view of Figure 33.
Figure 35 is hollow cone spiral atomizing cored structure schematic diagram.
Figure 36,37 is two kinds of structural representations that eddy flow hits stream twin-stage atomizing core mutually.
Figure 38 is the K-K profile of Figure 36.
The piece number title of the mark representative in above-mentioned figure is as follows:
1. nozzle boss 2. sprayer bodies 3. nozzle boss centre bores export 4. sealing rings or sealing gasket (seal fitting)
5. 6. temperature-sensitive glass envelope 7. fusible alloy supports of seal disc or packed-piston (seal)
8. the radiation groove of the outlet annular groove 8.2 intermediate cavity walls of intermediate cavity 8.1 intermediate cavity
9. frame arm and tighten part 10. filters or screen pack 11. springs 12. pressure rings
13. bowl-type chamber 14. spring oscillators all steep device 15. multichannel barriers and all steep device
16. annular groove disk 17. annular groove plug screws 18 water conservancy diversion gland and covers on the framework
19. the multiple-blade rotor all steeps device 20 water conservancy diversion gripper shoes
The stator of vane more than 21 all steeps device 22 Side spray formulas and spatters the mist plate
01 swirling flow atomizing core, 011. tangential hole swirling flow atomizing core, 012. tangential slot swirling flow atomizing core
013. top inclined hole swirling flow atomizing core 02 hits hole atomizing core 021. mutually and vertically hits hole atomizing core mutually
022. the center is hit hole atomizing core 023. oblique mutually and is hit hole atomizing core mutually
03. the compound atomizing core of inside and outside eddy flow twin-stage atomizing core 04. jet eddy flow swirl vane atomizing in 05. fen core
06. swirling flow atomizing core 07. hollow cone spiral atomizing core 08. eddy flow hits stream twin-stage atomizing core mutually in the twin-stage
09. be with bell-mouthed aperture atomizing core 0X0 atomizing core print seat 0X1 atomizing core cap
The specific embodiment
Embodiment 1: the multi-nozzle enclosed type mesolow fine mist spray head schematic diagram of loose joint shower nozzle framework at the bottom of the nozzle boss, and referring to Fig. 1.The nozzle boss centre bore fixed filter 10 of present embodiment, nozzle boss centre bore outlet 3 is had the end face shutoff of the packed-piston 5 of sealing ring 4, packed-piston top is positioned at the central authorities of the outlet annular groove 8.1 of intermediate cavity, the ladder post of packed-piston bottom band small sealing ring is positioned at the bottom of intermediate cavity 8, and the centre bore by annular groove disk 16, its bottom is held out against by temperature-sensitive glass envelope 6, the part 9 that tightens of base of frame supports the temperature-sensitive glass envelope, the externally threaded annular groove disk 16 of framework upper band, be threaded in the bottom center screw of nozzle boss 1, seal the annular groove disk support spring 11 at the bottom of the shower nozzle intermediate cavity, spring 11 be positioned at intermediate cavity packed-piston ladder post around and supporting packed-piston with the pretension compression stress, the seat chamber import that is contained in nozzle boss atomizing core 0X all around is connected with intermediate cavity outlet annular groove 8.1, the various atomizing cores that atomizing core 0X can select for use the present invention to provide also can be selected other suitable atomizing core for use.
Embodiment 2: the multi-nozzle enclosed type mesolow fine mist spray head schematic diagram of the compound atomizing core of band jet eddy flow is referring to Fig. 1 .1 and 1.2.The shower nozzle of shower nozzle that present embodiment provides and embodiment 1 is similar, and different is: the atomizing core of establishing around the nozzle boss is a jet swirling flow atomizing core 04.It is made up of atomizing core circular hole 046 and atomize core cap 044 and central fluidic channel 042 and tangential swirl hole 041, the big end of inner chamber taper hole of atomizing core cap equates with atomizing core Circularhole diameter and connects airtight mutually that atomizing core cap inner chamber taper hole small end is shrunk to atomizing core spout 045; The shoulder place of outlet annular groove 8.1 is provided with the inlet of whirl hole 041, the logical atomizing of the other end of whirl hole core circular hole 046 and tangent with it (seeing Fig. 1 .2), the fluidic channel of drawing from intermediate cavity 8, be positioned at atomizing core circular hole central authorities and aim at atomizing core spout, fluidic channel is jet orifice or is atomizing core 01 (referring to Figure 14), atomizing core 03 (referring to Figure 27), atomizing core 05 (referring to Figure 28～30), atomizing core 06 (referring to Figure 33), atomizing core 07 (referring to Figure 35) atomizing core passage and spout, establish spring 11 on the annular groove disk 16 of framework, temperature-sensitive glass envelope and spring 11 together support seal discs 5, the structure of design spring and seal disc can determine the hydraulic pressure of shower nozzle start-stop eruption.If meeting condition of a fire glass envelope 6 destroys, when hydraulic pressure surpasses initial tension of spring, seal disc leaves the outlet of nozzle boss centre bore, water enters intermediate cavity 8, yet divide two-way to enter the atomizing core, one the tunnel enters atomizing core eddy flow in circular hole and taper hole through hole 041 becomes moisture film, another route central authorities fluidic channel 042 is done central jet, and the stack that crosses at spout 045 place of eddy flow and jet forms the thin water smoke of big momentum and sprays outward; When loine pressure was lower than setting value, spring support seal disc resetted and blocks the outlet of nozzle boss centre bore, shower nozzle stop-spraying again.
Embodiment 3: establish the multi-nozzle enclosed type mesolow fine mist spray head schematic diagram of adjustable spring at the bottom of the nozzle boss, referring to Fig. 2.The nozzle structure of present embodiment and embodiment 1 is basic identical, part 1,4,6,10,11,0X, and intermediate cavity 8 and 8.1 is also similar to Example 1, repeat no more, different is to establish multichannel water conservancy diversion barrier in the nozzle boss centre bore all to steep device 15, nozzle boss lower frame and nozzle boss one, the intermediate cavity bottom center is established annular groove disk plug screw 17, rotates the preload pressure that plug screw 17 can be adjusted 11 pairs of seal discs 5 of spring.Establish the pressure ring 12 of band sealing ring in the nozzle boss centre bore, be used for and the common sealing nozzle seat centre bores of seal disc 5 of band combination sealing pad export.
Embodiment 4: the multi-nozzle enclosed type mesolow fine mist spray head schematic diagram of band packed-piston, and referring to Fig. 3.The present embodiment structure is substantially the same manner as Example 3 no longer to be described, the bottom of intermediate cavity 8 that different is is non-adjustable, combination sealing piston 5 is established on its top, packed-piston is with Side face shutoff intermediate cavity outlet annular groove 8.1, with the pressure ring 12 of end face shutoff nozzle boss centre bore outlet.
The spring of establishing in the shower nozzle intermediate cavity of embodiment 1～4 11 is pretension compression springs, as select injection starting pressure be 0.2Mpa then initial tension of spring be that packed-piston pushes up effective hydraulic pressure area * 0.2Mpa, be that above-mentioned four kinds of shower nozzles can not be opened eruption when importing water flow pressure less than 0.2Mpa, low hydraulic pressure lower nozzle atomization badness when this can be avoided system's start and stop, when atomization process is required undemanding occasion or the thin water smoke of eruption gas, can not establish spring in the intermediate cavity of the foregoing description.
Embodiment 5: be with the square shower nozzle schematic diagram of the thin water smoke of asymmetric multi-jet enclosed mesolow, referring to Fig. 4,5.Present embodiment is to have that lateral spray type spatters mist plate 22 and with the abutment wall shower nozzle of square nozzle boss 1 (also other shape that needs).Asymmetric installation and diverse two kinds of atomizing core 0X were to adapt to the spraying demand in different length and orientation about nozzle boss was provided with, be positioned at the end face and the nozzle boss centre bore outlet pressure ring 12 of being with sealing ring of the packed-piston 5 of intermediate cavity 8, common sealing nozzle seat centre bore outlet, intermediate cavity outlet annular groove 8.1 is then sealed in the piston side of packed-piston 5, the foundation of packed-piston band sealing ring is supported on the temperature-sensitive glass envelope 6 that the shower nozzle framework tightens on the part 9 and holds out against, nozzle boss centre bore inlet is established screen pack 10, it divides into water conservancy diversion gland and cover 18, the multiple-blade rotor all steeps device 19 and water conservancy diversion gripper shoe 20 (also can adopt the blade rotation direction and arrange be beneficial to all the multiple-blade stator of bubble all steeps device) and is used for the bubble of the bubble current of input is all steeped and refinement, if be input as pure water stream, then do not establish water conservancy diversion gland and cover 18, the multiple-blade rotor all steeps device 19 and water conservancy diversion gripper shoe 20 maybe can adopt the blade rotation direction and arrange that being beneficial to the multiple-blade stator that all steeps all steeps device.
Embodiment 6: atomizing core and shower nozzle framework are located at the multi-nozzle enclosed type mesolow fine mist spray head on the sprayer body, referring to Fig. 6,7.Nozzle boss centre bore inlet is established filter 10, establish spring oscillator in the nozzle boss centre bore and all steep device 14 (needn't establish part 14) in order to the air pocket in broken and the refinement water as using pure water stream, the seal disc 5 of band sealing ring 4 is tightened the support 7 of part 9 and band fusible alloy by the shower nozzle framework, hold out against shutoff in the outlet of nozzle boss centre bore, seal disc 5 is positioned at intermediate cavity 8, the seal disc foundation is positioned at the through hole of intermediate cavity bottom, intermediate cavity is through the radiation groove 8.2 connection nozzle bosses 1 of annulus and intermediate cavity wall and the bowl-type chamber, space 13 between the sprayer body 2, the big end of hollow cone spiral atomizing core 07 usefulness external thread rotary is contained on the sprayer body perisporium and with the bowl-type chamber and communicates, and also can adopt the atomizing core of other suitable type to be contained on the sprayer body perisporium.
Embodiment 7: establish the tandem atomizing multi-nozzle enclosed type mesolow fine mist spray head of two kinds of atomizing cores on nozzle boss and the sprayer body, inhomogeneity atomizing core also is housed, referring to Fig. 8,9 on the sprayer body.Present embodiment nozzle structure and part 1,2,10 no longer descriptions similar to Example 5, difference is in adorns a big flow lower resistance atomizing core 07 in the nozzle boss centre bore, so that water enters each nozzle atomization core elder generation's rotating percussion in nozzle boss before, increase the flow surface energy, for condition has been created in back level atomizing.Establishing the large-scale atomizing core of 08 class on the sprayer body periphery slant edge conical surface is responsible for to spraying all around, can meet at 2～4 eddy flows at shower nozzle center or hit stream atomizing core 01 or more small-sized atomizing core mutually at sprayer body bottom dress center line, be responsible for doing secondary and hit the spray mist mutually to the shower nozzle below.The bottom perisporium of intermediate cavity and the end face of seal disc 5, all establish sealing ring 4 with seal disc stern post root, be supported on seal disc stern post sliding the joining in intermediate cavity 8 bottom through-holes on the temperature-sensitive glass envelope 6, when reaching design temperature, damages the temperature-sensitive glass envelope, seal disc loses and supports and when being rushed at the intermediate cavity bottom by hydraulic pressure, just in time sealed dish stern post of intermediate cavity bottom through-hole and sealing ring thereof seal, nozzle boss centre bore outlet current can only flow into bowl-type chamber 13 by the tangential radiation groove 8.2 and the apical ring seam (referring to Fig. 9) of intermediate cavity wall, enter the core that respectively atomizes that is contained on the shower nozzle body wall again and spray.Present embodiment adopts plural serial stage mixed aerosol and the scheme that the different cores that atomize are set on shower nozzle different directions and position according to extinguishment requirement, so that produce required spraying matrix.
The shower nozzle of the foregoing description 1～6 can be adorned embodiment 9～15 described cores that respectively atomize, and the atomizing core that also can adorn other suitable type is made the multiinjector atomizing core of shower nozzle.
Embodiment 8: with the enclosed mesolow fine mist spray head of a plurality of flare aperture atomizers, referring to Figure 10～13.Present embodiment is identical with embodiment 7 shower nozzle rough structure, the position of different is part 07 on Fig. 8 changes spring oscillator into and all steeps device 14 (the spray pure water is not established part 14), the position of atomizing core 08 changes the aperture 090 of band flat-horn shaped enlarging into (referring to Figure 11, A to), the position of atomizing core 01 changes the ladder head-on collision aperture 091 (referring to Figure 13, T-T-T profile) of band circular horn shape enlarging into.Aperture 090 quantity is no less than 6, bell-mouthed major diameter is about 2～5 times of aperture, minor axis is to be slightly larger than the twice of aperture to the aperture, head-on collision aperture 091 quantity is 2～6, the mutual angle of cut in axle center is 100 °～75 °, the second level diameter of aperture 091 and excessive fillet diameter are about 2～3 times of the first order, and 090 and 091 hole diameter is that φ 1.～φ 3. draw ratios are 0.5～2.
Embodiment 9: referring to Figure 14～18.Swirling flow atomizing core 01 comprises tangential hole swirling flow atomizing core 011 or tangential slot swirling flow atomizing core 012 or top inclined hole swirling flow atomizing core 013, they have stepped cylindrical profile and cylindrical atomization chamber and shrink conical nozzle 01X5, can also establish several uniform ladder inclined holes as paying spout 0116 or 0126 around the atomizing core spout, cylinder chamber 0110 and 0120 perisporium are provided with tangential hole 0112 or tangential slot 0122, be provided with centrosymmetric top inclined hole 0132 on the top cover of cylinder chamber 0130, these feed the hole of cylinder chamber, groove and cylinder chamber circumference approximate tangent (0112,0122,0132 common name 01X2; 0110,0120,0130 common name 01X0, i.e. the outer bus of 01X2 projection on horizontal plane and the inner periphery of chamber 01X0 are tangent); When pressure flow enters atomizing core chamber through the tangential hole or the groove of atomizing core, and advance along inner periphery chamber, chamber rotation, can change faster and faster the hollow thin water film of formation to shrinking the awl place, helical form is gone out the atomizing core at a high speed, in the moment that breaks away from the spout constraint, centrifugal force and inertia force make the liquid film UNSTABLE FAILURE become silk to drip that a shape moves on and with air sharp impacts, friction, generate thin water smoke thereby further be broken into many little water droplets.
Embodiment 10: hit discharge orifice atomizing core mutually, referring to Figure 19～24.Become fixing close the joining of great circle cylinder of the atomizing outer core 02X1 of step cylindricality to be installed in the atomizing core print seat hole, atomizing core small column or taper seat with holes then links to each other with intake tunnel, press water is a plurality of head-on collision apertures of 1～3mm through diameter, bump is pulverized mist formation mutually in atomization chamber 02X0, sprays thin water smoke by spout.
The atomizing core hole of present embodiment has following three types:
Vertically hit hole atomizing core 021 mutually, on the circumference on the tip circle plane of its cylindrical wall with the side circumferential wall on distributed quantity is identical with diameter symmetrically 3～6 pairs of mutually perpendicular through holes 0212 and 0213.
Two kinds of atomizing cores 022 and 023 that head-on collision hole, 3～7 centers is arranged: the former through hole 0222 is evenly distributed in the circumferential plane perpendicular to the atomizing wire mandrel, and its top planar central also can be established the through hole 0223 of a same size; The latter's through hole 0232 then is evenly distributed on the conical surface, and their axis becomes the isogonism greater than 35 ° of angles to intersect on the atomizing wire mandrel a bit with the atomizing wire mandrel.
Embodiment 11: inside and outside eddy flow twin-stage atomizing core, and referring to Figure 25～27.The atomizing core print seat hole exits side 036 of inside and outside eddy flow twin-stage atomizing core 03 is turbination, and matches close joining with the outer conical surface of external spiral groove 034 on the inverted cone of atomizing core bottom; The atomizing core has inside and outside eddy flow twin-stage nebulization channel structure, atomizing core top is the cylindrical cavity cover that is bound by water conservancy diversion plug screw 031, the bottom of atomizing core is the hollow inverted cone that big footpath is bordering on atomizing core print seat bore dia, its male cone (strobilus masculinus) is the same with the atomizing core print seat hole contraction conical surface, be evenly equipped with on the atomizing in-core cylindrical cavity perisporium with the chamber in the approximate tangent eddy flow through hole 032 of circle, nearby cylindrical cavity is shrunk to the atomizing in-core spout 035 of back taper below eddy flow through hole plane.Atomizing core print seat hole 0X2 is communicated with atomizing in-core spout 035 through whirl hole 032 and eddy flow chamber 030 with the annular chamber internal channel that forms between core that atomizes, outer tunnel communicates with atomizing core print seat hole exits 036 through the helicla flute of eddy flow groove 034 along the outer cone wall, and the passage of two rotation direction unanimities converges the thin water fog applicator that formation has double loop at atomization core print seat hole exits 036 place.This atomizing core print seat 0X0 also can make double-body bike and not make whole cover, promptly is made of installing hole and atomizing core cap 0X1.
Embodiment 12: divide swirl vane atomizing core, referring to Figure 28～30.Atomizing core 05 is a whole swirl vane structure of dividing, it is one upright flat 051, its both sides are told and are respectively accounted for half of two half elliptic blades 052 of reversed dip mutually, the axis projection of the half elliptic blade of two opposition is circles that equate with atomizing core print seat 0X0 hole internal diameter, the branch swirl vane is close to be fitted in the atomizing core print seat hole of being with shrinkage hole, the two halves elliptical blade that is crossed as 90 °～120 ° mutually forms atomizing core spray orifice towards atomizing core print seat hole exits 056.The atomizing core print seat also can be made double-body bike, and the core print seat hole 0X0 that promptly atomizes is not cover and just parent installing hole and atomizing core cap 0X1.
Embodiment 13: swirling flow atomizing core 06 in the twin-stage, and referring to Figure 31～34.One-level tapered sleeve 064 is established end socket water conservancy diversion plug screw 061, tangential hole 062 is arranged on the sidewall of one-level tapered sleeve, one-level handstand tapered sleeve shrinks awl and exports 066 and is arranged in handstand tapered sleeve chamber, the second level, the sidewall of second level handstand tapered sleeve has tangential slotted eye 063, the two-stage tapered sleeve is linked to be integral body, is tightly packed in the atomizing core print seat 0X0 hole by two ends large circle location; Second level tapered sleeve outlet 065 is positioned at atomizing core print seat hole exits central authorities, form atomizing core spout, both are concentric diametrically for outlet 065 of second level tapered sleeve and first order tapered sleeve outlet 066, two-stage tapered sleeve aperture or probably concordant in the axial direction, perhaps first order tapered sleeve exports in the tapered sleeve chamber, the 066 retraction second level.This atomizing core also can be made Figure 33 shape.Promptly do not establish atomizing core print seat cover, and directly be located in the installing hole atomizing core, this moment 061 is a plug screw just, two-stage tapered sleeve cylindrical all establish one with the seat the identical round platform rank of internal diameter, hole, on one-level tapered sleeve round platform rank, open a plurality of guiding gutters for one, establish connecting thread for one on secondary tapered sleeve step, the tangential hole on the one-level tapered sleeve becomes tangential slot.
Embodiment 14: hollow cone spiral atomizing core 07, and referring to Figure 35.Establish a spiral groove 072 on the tapered sleeve wall of conical cavity having, form hollow cone spiral atomizing core, the outer wall of its big stomidium 071 is provided with external screw thread, holds external thread rotary greatly in the hole import of atomizing core print seat, the tiny cone opening of atomizing core is positioned at atomizing core print seat hole exits central authorities, forms with one heart two annular spouts; The hollow cone spiral atomizing core of present embodiment also can not established atomizing core print seat cover 0X0, only its big end is located in the installing hole, and its whole hollow cone spiral all is exposed in the atmosphere.
Embodiment 15: eddy flow hits stream twin-stage atomizing core mutually, referring to Figure 36～38.It is the twin-stage atomizing core that atomizes through bump again through swirling flow atomizing earlier that eddy flow flows twin-stage atomizing core 08 mutually, its structure is: the cylindrical chamber 084 of hitting mutually that is positioned at atomizing stem stem 080 lower central, connect atomizing core conical nozzle 085 and straight-through atmosphere downwards, what be communicated with 3～4 band shrinkage cavity mouths towards periphery hits hole 082 mutually, each hits uniform the intersecting at of axially bored line mutually and hits the center, chamber mutually, each hits Kong Youyi the less whirl hole 081 of diameter mutually and intersects with it, the cylindrical that hits hole side bus and whirl hole mutually is tangent, and the inlet of whirl hole is distributed on the end face of cylindrical atomizing core.Close joining of the outside cylinder of atomizing core installs in the present hole.
Claims (10)
1. multi-nozzle enclosed type mesolow fine mist spray head is characterized in that being provided with nozzle boss, seal, intermediate cavity, atomizing core, shower nozzle framework and temperature-sensitive support member; Be provided with nozzle boss centre bore, the import of nozzle boss centre bore and the outlet of nozzle boss centre bore in the nozzle boss; Seal is located in the intermediate cavity, and seal blocks the outlet of nozzle boss centre bore or blocks the through hole of intermediate cavity bottom; The intermediate cavity import connects the outlet of nozzle boss centre bore, and the intermediate cavity outlet connects the import of atomizing core through passage or chamber; The atomizing core is established at least two, and the atomizing in-core is provided with water stream channel, water stream channel and atomizing core spout connection, the logical atmosphere of atomizing core spout; Shower nozzle framework one end is fixed on the shower nozzle below, and the shower nozzle framework other end supports the temperature-sensitive support member; The temperature-sensitive support member is between shower nozzle framework and seal.
2. multi-nozzle enclosed type mesolow fine mist spray head as claimed in claim 1 is characterized in that seal is selected from the seal disc of packed-piston or magnetic tape trailer post.
3. multi-nozzle enclosed type mesolow fine mist spray head as claimed in claim 1 or 2 is characterized in that on seal, or on seal and the intermediate cavity, or on the nozzle boss centre bore, or the pressure ring in the nozzle boss centre bore is provided with seal fitting.
4. multi-nozzle enclosed type mesolow fine mist spray head as claimed in claim 1 is characterized in that intermediate cavity is selected from a kind of in the cylindrical cavity that the annular wall of ladder cylinder chamber, band radiation groove or the through hole of cylindrical cavity, band cannelure surrounds.
5. multi-nozzle enclosed type mesolow fine mist spray head as claimed in claim 1, the water stream channel that it is characterized in that described atomizing in-core is selected from the circular jet nebulization channel, liquid film jet atomization passage, a kind of in the synthetic nebulization channel of circular jet nebulization channel and liquid film jet atomization channel group; Described atomizing core be selected from the swirling flow atomizing core, mutually hit discharge orifice atomizing core, inside and outside eddy flow twin-stage atomizing core, the compound atomizing core of jet eddy flow, divide swirling flow atomizing core in swirl vane atomizing core, the twin-stage, hollow cone spiral atomizing core, eddy flow to hit at least a in stream twin-stage atomizing core, the band horn mouth aperture atomizing core mutually;
Described swirling flow atomizing core is provided with the cylindrical cavity that band contracting nozzle and tip circle are faced the wall and meditated, and the perisporium of cylindrical cavity is provided with tangential through hole or tangential groove or tip circle and faces the wall and meditates and establish the oblique through hole in top, and the outer side bus of said hole or groove and the circumference of cylindrical cavity are tangent;
The described discharge orifice atomizing core that hits mutually is provided with cylindrical cavity, the tip circle in chamber face the wall and meditate and the side circumferential wall on establish uniform through hole, the axis of through hole or vertical in pairs friendship mutually, or in disk, be the radial mutual friendship in center perpendicular to atomizing core cavity axis, or becomes with atomizing core cavity axis greater than 35 ° of angles tiltedly to meet at mutually on the axis a bit, form the discharge orifice that clashes;
The cylindrical cavity of described inside and outside eddy flow twin-stage atomizing core is shrunk to the conical cavity of band spout, establish many equidistant eddy flow grooves on the conical cavity outer cone wall, have on the arm of cylindrical cavity chamber with the chamber in the tangent eddy flow through hole of circle, be close on the cone-shaped wall of identical shaped atomizing core print seat with the male cone (strobilus masculinus) of equidistant eddy flow groove; The logical outward eddy flow groove of annular chamber, interior logical whirl hole that forms between the post hole of atomizing core print seat and atomizing core top cylinder, the taper hole that each eddy flow groove outlet is trapped among conical cavity spout periphery and all is positioned at the atomizing core print seat;
The big stomidium of the conical cavity of the compound atomizing core of described jet eddy flow band spout joins with the cylindrical cavity in same footpath, the disk wall of cylindrical cavity is provided with and conical cavity and the concentric central fluidic channel of spout, central authorities' fluidic channel is the central jet hole or is atomizing core (01,03,05,064,07) passage and spout, cylindrical cavity passes through mutually with whirl hole, and circle is tangent in cylindrical cavity side bus and the whirl hole;
Uprightly flat flat and form in described minute swirl vane atomizing core to the two halves elliptical blade that reversed dip is told in both sides by central authorities, the axis projection of blade is the circle that equates with atomizing core print seat aperture, and the two halves elliptical blade that is crossed as 90 °～120 ° is towards the atomizing core spout of being with shrinkage hole;
The one-level tapered sleeve of swirling flow atomizing core band cylindrical cavity is enclosed in the secondary cylindrical cavity with tapered sleeve in the described twin-stage, the two-stage cylindrical cavity all has tangential hole or groove to feed from the atomizing core print seat hole of periphery, the two-stage tapered sleeve with one heart and export concordant, perhaps in the one-level tapered sleeve outlet retraction secondary tapered sleeve chamber;
Described hollow cone spiral atomizing core is provided with the cone of band conical cavity, and cone has been cut an awl spiral groove, and cone is contained in the atomizing core print seat hole entirely or only big end is contained in the core print seat hole that atomizes and cone is exposed in the atmosphere;
Described eddy flow hits stream twin-stage atomizing core its underpart central authorities mutually and is provided with the open to atmosphere cylindrical cavity of spout, around the chamber uniform at least 2 have shrink the aperture hit the hole mutually, each hits the hole mutually and feeds one tangential. the eddy flow inlet opening, each inlet opening inlet is positioned at atomizing core cylinder end face, and close joining of the atomizing core face of cylinder is packed in the atomizing core print seat hole.
6. multi-nozzle enclosed type mesolow fine mist spray head as claimed in claim 1, it is characterized in that the temperature-sensitive support member is made of temperature-sensing element and supporting component, temperature-sensing element is selected from temperature-sensitive glass envelope or fusible alloy, and supporting component is to be located at the tightening mechanism on the shower nozzle framework or to compress leverage.
7. multi-nozzle enclosed type mesolow fine mist spray head as claimed in claim 1 is characterized in that being provided with filter in the nozzle boss centre bore or being provided with filter and all steeping device; All steep device and be selected from the little volute spring oscillator of import large outlet and all steep device, multichannel water conservancy diversion barrier all steeps device, and fixed or rotary type multi-disc vane all steeps a kind of in the device.
8. as claim 1,2,4,5,6 or 7 described multi-nozzle enclosed type mesolow fine mist spray heads, the core that it is characterized in that atomizing is located in the periphery wall of nozzle boss; All be located in the nozzle boss with straight-through intermediate cavity of nozzle boss centre bore and built-in seal; The shower nozzle framework is fixed in nozzle boss bottom, and seal is by being supported on that temperature-sensitive support member on the shower nozzle framework supports separately or by temperature-sensitive support member and the spring together support of being located in the intermediate cavity.
9. as claim 1,2,4,5,6 or 7 described multi-nozzle enclosed type mesolow fine mist spray heads, it is characterized in that being provided with sprayer body at the bottom and the periphery of nozzle boss, sprayer body and nozzle boss form the bowl-type chamber between the two, the intermediate cavity of built-in seal is positioned at bowl-type chamber central authorities and exports over against the nozzle boss centre bore, intermediate cavity is provided with the annular wall or with the annular wall of a plurality of radiation grooves, is communicated with circumferential weld between the outlet of nozzle boss centre bore by intermediate cavity annular wall top between intermediate cavity and the bowl-type chamber or adds by circumferential weld to radiate groove and be communicated with jointly; The atomizing core is located in the sprayer body periphery wall, and the import of atomizing core is communicated with intermediate cavity through the bowl-type chamber.
10. as claim 1,2,4,5,6 or 7 said multi-nozzle enclosed type mesolow fine mist spray heads, it is characterized in that nozzle boss is cuboid or polyhedron, the atomizing core is selected for use a kind of at least, and the nozzle that the atomizing core forms is symmetry or asymmetric setting on nozzle boss; Shower nozzle is vertical shower nozzle or side formula abutment wall shower nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100967716A CN100460035C (en) | 2005-09-01 | 2005-09-01 | Multi-nozzle enclosed type middle and low pressure water mist sprayer |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100967716A CN100460035C (en) | 2005-09-01 | 2005-09-01 | Multi-nozzle enclosed type middle and low pressure water mist sprayer |
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| CN1730163A CN1730163A (en) | 2006-02-08 |
| CN100460035C true CN100460035C (en) | 2009-02-11 |
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| CNB2005100967716A Expired - Fee Related CN100460035C (en) | 2005-09-01 | 2005-09-01 | Multi-nozzle enclosed type middle and low pressure water mist sprayer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07100223A (en) * | 1993-04-23 | 1995-04-18 | Htc I Aamaal Ab | Nozzle holder |
| CN1148347A (en) * | 1994-05-17 | 1997-04-23 | 戈兰·桑德霍姆 | Sprinkler |
| CN1450924A (en) * | 2000-03-28 | 2003-10-22 | “尤尼帕特”有限责任公司 | Sprinklers |
| CN2815426Y (en) * | 2005-09-01 | 2006-09-13 | 韩铁夫 | Multi-nozzle closed medium-low pressure fine fog spraying head |
-
2005
- 2005-09-01 CN CNB2005100967716A patent/CN100460035C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07100223A (en) * | 1993-04-23 | 1995-04-18 | Htc I Aamaal Ab | Nozzle holder |
| CN1148347A (en) * | 1994-05-17 | 1997-04-23 | 戈兰·桑德霍姆 | Sprinkler |
| CN1450924A (en) * | 2000-03-28 | 2003-10-22 | “尤尼帕特”有限责任公司 | Sprinklers |
| CN2815426Y (en) * | 2005-09-01 | 2006-09-13 | 韩铁夫 | Multi-nozzle closed medium-low pressure fine fog spraying head |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1730163A (en) | 2006-02-08 |
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