CN201143459Y

CN201143459Y - Multi-impact type fine water mist nozzle

Info

Publication number: CN201143459Y
Application number: CNU2007200162590U
Authority: CN
Inventors: 蔡伟民
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-11-27
Filing date: 2007-11-27
Publication date: 2008-11-05
Anticipated expiration: 2017-11-27

Abstract

The utility model relates to a repeated impact type water mist nozzle, which consists of a body and firing pins. The body is provided with a water inlet, a main waterway and a branch waterway from top to down along the axle wire thereof; the number of the water outlet of the branch waterway is the same as the number of the firing pins; the firing pins are U-shaped and evenly arranged along the body axle wire; one end of the U-shaped firing pins is a fixed end that is fixedly arranged at the lower head face of the body in a pressing mode, while the other end is an impact surface that is respectively corresponding to and vertical to the axes of the branch waterway. The utility model is characterized in that the water outlet ends of the branch waterway are evenly arranged at an outer ring diffusing surface and an inner ring diffusing surface formed by two round table side surfaces with different cone angles; the two round table side surfaces are coaxial with the body; the injection angle of the inner ring is larger than the injection angle of the outer ring to form the secondary impact, thus acquiring finer and more evenly distributed water mist. The nozzle can also form a closed nozzle by adding a temperature-sensing open device on the main waterway. The nozzle of the utility model has the characteristics of simple structure, convenient installation and wide applicable range.

Description

Multiple impact type water mist nozzle

Technical field

The utility model relates to a kind of atomising device or nozzle, relates in particular to a kind of multiple impact type water mist nozzle.

Background technology

According to different criteria for classifications, as the mode of water smoke generation, the pressure that water smoke produces etc., mist-generating nozzle has multiple different sorting technique.

The mode that water smoke produces generally includes: diffusion impact, pressure injection, gas atomization and injection are mutual.

Diffusion impact type fine atomizer nozzle is that metastable current are collided diffuser with middling speed, and diffuser resolves into the high momentum water smoke of various different sizes with current, compares with the mist-generating nozzle of other type, and its water droplet of 90% is all less than 600 microns.The working pressure range of bump nozzle in the market approximately clings to (250pis) from 7 crust (100pis) to 17.2.Concerning fire-fighting, the bump nozzle can be an enclosed automatic spray nozzle, also can be used in the deluge system of making all standing or region-type on the open-type nozzle.In the former technological document, the design of bump mist-generating nozzle comprises uses multiple tooth, sphere or spirality diffuser.The multiple tooth mist-generating nozzle of enclosed automatic spray that is used to put out a fire, Fischer invents in the U.S., and U.S. Patent number is to have a detailed description in 5,392,993 the file.Spherical diffusion is clashed into open mist-generating nozzle and is invented at U.S. Fischer, and U.S. Patent number is to have a detailed description in 5,505,383 the file.For the spirality diffuser, comparatively speaking, in installation, maintenance process, can there be certain dangerous hidden danger.

The pressure injection mist-generating nozzle be with high pressure the aperture of current by some, in nozzle interior vortex device just is being installed and assist is being decomposed current.It is the principle of using drive nozzle that multiple mist-generating nozzle is arranged, and working pressure range is to 280 crust (4060pis) from 5 crust (70pis).Drive nozzle can be that enclosed starts separately or uses as open-type nozzle.Open-type nozzle can be used as on zone or all standing formula deluge system.The water droplet that the pressure injection mist-generating nozzle produces in high pressure range 90% all less than 150 microns.The enclosed automatic spray pressure injection nozzle that is used to put out a fire is to have a detailed description in 5,513,708 the file in the U.S. Sundholm patent No..Open type pressure injection nozzle has description in Sundholm International Patent Application WO 93/00962 (date is on July 20th, 1993).

Gas atomization mist-generating nozzle (also referring to two-fluid spray nozzle) is by Compressed Gas and in conjunction with the water generates water smoke that is arranged in position, spray-hole upper reaches mixing chamber.The actuating pressure of gas atomizing nozzle is approximately 5 crust (75pis), and the water droplet 90% of generation is less than 250 microns.Because nozzle requires to guarantee that hydraulic pressure and gas pressure in the nozzle pipeline reach the mixing requirement,, and only limit in zone covering or all standing deluge system, use so gas atomizing nozzle can only be an open type.The gas atomization mist-generating nozzle that is used to put out a fire is in 2,361,144 the file in the U.S. Loepsinger patent No. and the U.S. Papavergos patent No. is in 4,989,675 the file and U.S. Patent number is to have a detailed description in 5,014,790 the file.

Spray mutual mist-generating nozzle, accurately clash into generation water smoke by multiple current.To 7 crust (100pis), because the water smoke relative momentum that this nozzle produces is lower, so sphere of action only limits to be used on the portable nozzle cool off the operating pressure of this nozzle and dilution low volatility liquid fire from 3 crust (45pis).The mutual mist-generating nozzle of the injection that is used to put out a fire is in 2,310,798 the file in the U.S. Lewis patent No. and the U.S. Lee patent No. is to have a detailed description in 2,493,982 the file.

Summary of the invention

The utility model be intended to disclose a kind of cost low, mist-generating nozzle simple and easy, wide adaptability is installed, not only can make open-type nozzle but also can make to have the closed type nozzle of temperature control equipment, especially through multiple impact, its water smoke is finer and closely woven more even.

Technical solution of the present utility model is achieved in that

A kind of multiple impact type water mist nozzle comprises main body and striker, and described main body is along having water inlet, main water route, Zhi Shuilu from top to bottom on its axis, and the number of the delivery port of described Zhi Shuilu is identical with the striker number; Described striker is the U type, and it is uniform along the main body axis, one end of U type striker is a stiff end, be installed in the main body lower surface with impact style, the other end is a striking face, the axis of corresponding and vertical Zhi Shuilu respectively, the water outlet end that it is characterized in that described Zhi Shuilu be distributed in main body coaxial be connected up and down and outer shroud diffusingsurface and interior ring diffusingsurface that two round platform side surfaces that cone angle is different form on.

Described multiple impact type water mist nozzle, also comprise attemperating unit, described attemperating unit is positioned at main water route, with the coaxial assembling of main body, comprise sealing ring, spool, glass marble and valve gap from top to bottom, the fixing by sealing ring and glass marble respectively up and down of described spool, the inner bottom surface center that is against valve gap is propped up in the lower end of glass marble, valve gap is positioned under the Zhi Shuilu water inlet, and with in the main body thread connection, form a closed type nozzle device.

The round platform cone angle (A) of ring diffusingsurface is less than the round platform cone angle (B) of outer shroud diffusingsurface in described, and the jet angle of formed interior ring water smoke is greater than the jet angle of outer shroud water smoke, thereby the generation secondary impact forms more fine and closely woven uniform water smoke; A and B spend to value between 120 degree 60.

The cross section of described striker is circular, and its diameter is not more than Zhi Shuilu water outlet end diameter; Described Zhi Shuilu water outlet end diameter is 1.0～2.5mm.

Distance between the extreme higher position of described striker striking face and the Zhi Shuilu water outlet end is not more than 1mm.

The beneficial effects of the utility model are conspicuous: it is simple in structure, and is easy for installation, and hole diameter can be selected different sizes according to the requirement of water quality and flow, can make open-type nozzle on demand or add that attemperating unit makes closed type nozzle, applied widely.And the design of the different dicyclo diffusingsurface of cone angle makes the bump diffusion effect of described multiple impact mist-generating nozzle more outstanding, thus the finer and closely woven more uniform water smoke that obtains.The operating pressure of described nozzle is very wide, and hydraulic pressure can be from 0.4MPa to 2.4MPa and produce main thin water smoke.Open architecture of the present utility model can be made the deluge system of all standing or region-type, and its closed type structure can be made automatic spray spray system.Can be widely used in and put out category-A, category-B, C class and K class fire, also can be used for the environment that other need use thin water smoke, as humidifier, gas turbine cooling etc.

Description of drawings

2 in the utility model accompanying drawing, wherein

Fig. 1 is the structural representation of open type multiple impact type water mist nozzle;

Fig. 2 is the structural representation of enclosed multiple impact type water mist nozzle.

Among the figure, 1, axis 4, main water route 5, water inlet 6, outer shroud diffusingsurface 7, interior ring diffusingsurface 10, sealing ring 11, spool 12, glass marble 13, the valve gap of water outlet end 3b, the Zhi Shuilu of main body 2, striker 2a, striker stiff end 3, Zhi Shuilu 3a, Zhi Shuilu.

The specific embodiment

Embodiment 1 open type multiple impact type water mist nozzle

As shown in Figure 1, described nozzle comprises main body 1 and striker 2, and described main body 1 is along having water inlet 5, main water route 4, Zhi Shuilu 3 from top to bottom on its axis, and the number of the delivery port of described Zhi Shuilu 3 is identical with striker 2 numbers; Described striker 2 is the U type, and it is uniform along main body 1 axis, one end of U type striker 2 is stiff end 2a, be installed in main body 1 lower surface with impact style, the other end is a striking face, the axis of corresponding and vertical Zhi Shuilu 3 respectively, the water outlet end 3a of described Zhi Shuilu be distributed in main body coaxial be connected up and down and outer shroud diffusingsurface 6 and interior ring diffusingsurface 7 that two round platform side surfaces that cone angle is different form on.The round platform cone angle (A) of ring diffusingsurface 7 is less than the round platform cone angle (B) of outer shroud diffusingsurface 6 in described, and A and B spend to value between 120 degree 60.The cross section of described striker is circular, and its diameter is not more than Zhi Shuilu water outlet end diameter; Described Zhi Shuilu water outlet end diameter is 1.0～2.5mm.Distance between the extreme higher position of described striker striking face and the Zhi Shuilu water outlet end is not more than 1mm.

Embodiment 2 enclosed multiple impact type water mist nozzles

As shown in Figure 2, the difference of described nozzle and embodiment 1 is that it also comprises attemperating unit, described attemperating unit is positioned at main water route 4, with main body 1 coaxial assembling, comprise sealing ring 10, spool 11, glass marble 12 and valve gap 13 from top to bottom, described spool 11 fixing by sealing ring 10 and glass marble 12 respectively up and down, the inner bottom surface center that is against valve gap 13 is propped up in the lower end of glass marble 12, valve gap 13 is positioned under Zhi Shuilu 3 water inlets, and with in main body 1 thread connection, form a closed type nozzle device.Closed type nozzle is equipped with temperature control equipment, nozzle is had according to different temperatures and environmental demand start the characteristics of spraying water.

Claims

1, a kind of multiple impact type water mist nozzle, comprise main body (1) and striker (2), described main body is along having water inlet (5), main water route (4), Zhi Shuilu (3) from top to bottom on its axis, the number of the delivery port of described Zhi Shuilu (3a) is identical with striker (2) number; Described striker is the U type, and it is uniform along main body (1) axis, one end of U type striker is stiff end (2a), be installed in the main body lower surface with impact style, the other end is a striking face, the axis (3b) of corresponding and vertical Zhi Shuilu respectively, the water outlet end (3a) that it is characterized in that described Zhi Shuilu be distributed in main body coaxial be connected up and down and outer shroud diffusingsurface (6) and interior ring diffusingsurface (7) that two round platform side surfaces that cone angle is different form on.

2, multiple impact type water mist nozzle according to claim 1, it is characterized in that also comprising attemperating unit, described attemperating unit is positioned at main water route (4), with the coaxial assembling of main body (1), comprise sealing ring (10) from top to bottom, spool (11), glass marble (12) and valve gap (13), fixing by sealing ring (11) and glass marble (12) respectively up and down of described spool (11), the inner bottom surface center that is against valve gap (13) is propped up in the lower end of glass marble (12), valve gap (13) is positioned under Zhi Shuilu (3) water inlet, and with in main body (1) thread connection, form a closed type nozzle device.

3, multiple impact type water mist nozzle according to claim 1 and 2 is characterized in that the round platform cone angle (B) of the round platform cone angle (A) of described interior ring diffusingsurface (7) less than outer shroud diffusingsurface (6), and A and B spend to value between 120 degree 60.

4, multiple impact type water mist nozzle according to claim 3, the cross section that it is characterized in that described striker (2) is for circular, and its diameter is not more than Zhi Shuilu water outlet end (3a) diameter; Described Zhi Shuilu water outlet end (3a) diameter is 1.0～2.5mm.

5, diffusion impact type fine atomizer nozzle according to claim 4 is characterized in that the extreme higher position of described striker (2) striking face and the distance between the Zhi Shuilu water outlet end (3a) are not more than 1mm.