CN204158924U - A kind of flow straightener cross section is the water mists fire water monitor head of double-layer circular tube shape - Google Patents

A kind of flow straightener cross section is the water mists fire water monitor head of double-layer circular tube shape Download PDF

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Publication number
CN204158924U
CN204158924U CN201420630726.9U CN201420630726U CN204158924U CN 204158924 U CN204158924 U CN 204158924U CN 201420630726 U CN201420630726 U CN 201420630726U CN 204158924 U CN204158924 U CN 204158924U
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CN
China
Prior art keywords
flow straightener
big gun
gun head
double
fire
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Expired - Fee Related
Application number
CN201420630726.9U
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Chinese (zh)
Inventor
胡国良
刘世鸿
张海云
廖明科
李刚
徐�明
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East China Jiaotong University
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East China Jiaotong University
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Priority to CN201420630726.9U priority Critical patent/CN204158924U/en
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Publication of CN204158924U publication Critical patent/CN204158924U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses the water mists fire water monitor head that a kind of flow straightener cross section is double-layer circular tube shape, form primarily of flow straightener, big gun head body, nozzle core, sleeve, double threaded screw, sealing ring, anti-return nut, hand guard glove and dog screw.Big gun head body tip is connected with fire water monitor outlet pipe, forms a complete fire water monitor.Flow straightener cross section is double-layer circular tubulose, and inside and outside two-layer pipe all installs 6 fins, and mutually evenly staggered, uniform fluid flow higher for turbulent extent can be dispersed into multiple stable thin current.Space between nozzle core and big gun head body is shunk gradually, forms nozzle.After current flow through nozzle, with uniform water mists shape ejection.This water mists fire water monitor head uniform fluid flow, atomizing effect is good, water smoke area coverage is large.Be particularly suitable for the fire-fighting fire extinguishing in the place such as library, power house and defeated coal fortune coal yard dedusting haze falls.

Description

A kind of flow straightener cross section is the water mists fire water monitor head of double-layer circular tube shape
Technical field
The utility model relates to a kind of fire water monitor head, particularly relates to the water mists fire water monitor head that a kind of flow straightener cross section is double-layer circular tube shape.
Background technology
Fire water monitor head is the critical component of fire water monitor, and it is the final tache of kinetic energy by the potential energy of pressure flow, but also decide the spray regime of fire water monitor.The water jet of fire water monitor head ejection has direct current to spray and spray injection two kinds of canonical forms.Spray injection fire extinguishing refers to that current form vaporific fine water droplet after nozzle ejection, and uniform fold, to protection zone, is reached fire extinguishing by effects such as cooling, suffocate, suppressed the object of the intensity of a fire and cooling protection.Compared to traditional straight jet injection fire-extinguishing mode, spray injection fire extinguishing not only can reduce water consumption greatly, increases fire extinguishing coverage, and little to damage of facilities on fire, environmentally friendly pollution-free.Therefore be more and more widely used in putting out the fire of the equipment such as power-equipment, place, library and various defeated coal yard dedusting the work such as haze are fallen.
Fire water monitor head nozzle determines the spray regime of fire water monitor.The whether parallel energy conversion efficiency that decide fire water monitor of nozzle interior streamline, directly affects range and the jet quality of fire water monitor.Therefore, in fire water monitor head, flow straightener is installed, reduces current vortexs and to necessitate condition.The effect of flow straightener is the rebuffed chance increasing horizontal force in runner, and lateral current is disappeared as early as possible, thus reduces flow energy loss; On the other hand because section is separated into many fractions, the current lateral dimension of each several part reduces, and Reynolds number reduces, and makes streamflow regime near laminar flow, reduces the water turbulence degree flowing to big gun big gun head nozzle, thus improves range.Current fire water monitor head flow straightener mainly contains star, muscle sheet shape, triangle, groined type and projectile tail shape etc., but these flow straighteners all do not reach the effect split current preferably, reduce eddy current.So in the urgent need to designing a kind of novel flow straightener and water mists water cannon big gun head with matching, increasing fire water monitor range by the structure innovation of flow straightener and big gun head and optimizing atomization of water current effect.
Summary of the invention
In order to overcome fire water monitor head Problems existing described in background technology and meet the actual operation requirements of fire-fighting fire extinguishing, the utility model provides a kind of flow straightener cross section to be the water mists fire water monitor head of double-layer circular tube shape.This water mists fire water monitor head adopts a kind of novel double-layer circular tube shaped flow straightener, utilizes the shunting current stabilization effect of this flow straightener, the current flowing out turbulent extent higher is divided into multiple tributary, reduces the turbulence level in fire water monitor head from fire water monitor outlet pipe; Current form water mists after flow straightener after the compression of big gun head body and nozzle core, spray from big gun head with higher speed.This water mists fire water monitor head atomizing effect is good, and water smoke is even, and area coverage is large, and haze etc. falls in the dedusting that effectively can be applied to fire-fighting fire extinguishing and industrial city.
The utility model solves the technical scheme that its technical problem adopts and comprises: holding screw I (2), sleeve (3), big gun head body (4), hand guard glove (5), anti-return nut (6), nozzle core (7), holding screw II (8), double threaded screw (9), flow straightener (10) and sealing ring (11); Big gun head body (4) is fixedly connected with by screw thread with the outlet pipe (1) of fire water monitor, and is locked by holding screw I (2); By sealing ring (11) sealing between big gun head body (4) and outlet pipe (1); Interference fit is adopted between sleeve (3) and big gun head body (4), sleeve (3) one end contacts with outlet pipe (1) exit end face, and sleeve (3) other end contacts with flow straightener (10) inlet end face; Flow straightener (10) is arranged in big gun head body (4), flow straightener (10) inlet end face is by sleeve (3) location, and flow straightener (10) exit end face is located by the convex shoulder of big gun head body (4); Flow straightener (10) exit end face is provided with internal thread, is connected with double threaded screw (9) retaining thread; Double threaded screw (9) other end is connected with nozzle core (7) retaining thread; Anti-return nut (6) is used for fixing double threaded screw (9) and nozzle core (7); Adopt screw thread to be fixedly connected with between hand guard glove (5) with big gun head body (4), hand guard glove (5) and big gun head body (4) are locked by holding screw II (8).Flow straightener (10) cross section is double-layer circular tube shape; Internal layer and outer pipe all install 6 fins, and mutually evenly staggered between fin; The outer floor leading portion of flow straightener (10) linearly shrinks, and is convenient to flow straightener (10) and installs and location.
The utility model is compared with background technology, and the beneficial effect had is:
(1) flow straightener of the utility model by the improvement of water mists fire water monitor head and employing cross section being double-layer circular tube shape, substantially increase water mists fire water monitor atomization ability and range, effectively increase water mists fire water monitor fire extinguishing coverage, and the water consumption of fire water monitor can be reduced, improve fire extinguishing and efficiency of dust collection.
(2) the utility model structure is simple, easy to install and use, application place is extensive.Multiple fixing and portable fire water monitor can be installed on, put out the place such as library, power house fire and for defeated coal fortune coal yard dedusting haze etc. falls.
Accompanying drawing explanation
Fig. 1 is the utility model structure principle chart.
Fig. 2 is flow straightener top view of the present utility model.
Fig. 3 is flow straightener front view of the present utility model.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail:
As shown in Figure 1, the utility model comprises: holding screw I2, sleeve 3, big gun head body 4, hand guard glove 5, anti-return nut 6, nozzle core 7, holding screw II8, double threaded screw 9, flow straightener 10 and sealing ring 11.Big gun head body 4 is fixedly connected with by screw thread with the outlet pipe 1 of fire water monitor, and is locked by holding screw I2; Sealed by sealing ring 11 between big gun head body 4 and outlet pipe 1.Adopt interference fit between sleeve 3 and big gun head body 4, prevent the part of sleeve 3 and location thereof from coming off in transportation.Sleeve 3 one end contacts with outlet pipe 1 exit end face, and sleeve 3 other end contacts with flow straightener 10 inlet end face.Flow straightener 10 is arranged in big gun head body 4, and flow straightener 10 inlet end face is located by sleeve 3, and flow straightener 10 exit end face is located by the convex shoulder of big gun head body 4.Flow straightener 10 exit end face is provided with internal thread, is connected with double threaded screw 9 retaining thread.Double threaded screw 9 other end is connected with nozzle core 7 retaining thread; Anti-return nut 6 is used for fixing double threaded screw 9 and nozzle core 7.Adopt screw thread to be fixedly connected with between hand guard glove 5 with big gun head body 4, hand guard glove 5 and big gun head body 4 are locked by holding screw II8.Hand guard glove can protect big gun head body and installation personnel in water cannon big gun head group dress and transportation, and plays the effect of certain divergent flow.
As shown in Figures 2 and 3, flow straightener 10 cross section is double-layer circular tubulose, internal layer and outer pipe all install 6 fins, and it is mutually evenly staggered between fin, uniform fluid flow large for turbulent extent can be divided into multiple weep, hinder the development of lateral current, reduce the turbulent extent of current, current are sprayed with higher speed from nozzle.The outer floor leading portion of flow straightener 10 linearly shrinks, and is convenient to flow straightener 10 and installs and locate.
Utility model works principle is as follows:
Before fire-extinguishing operations, the outlet pipe 1 of whole water mists fire water monitor head and fire water monitor is rigidly connected by the screw thread of big gun head body 4 end, thus the water mists fire water monitor that formation one is complete.When fire extinguishing and dust removal operation, water mists fire water monitor head is aimed at fire area or haze region, the water mists that utilization produces carries out fire-fighting fire extinguishing or the work such as haze fall in dedusting.

Claims (2)

1. flow straightener cross section is a water mists fire water monitor head for double-layer circular tube shape, it is characterized in that comprising: holding screw I (2), sleeve (3), big gun head body (4), hand guard glove (5), anti-return nut (6), nozzle core (7), holding screw II (8), double threaded screw (9), flow straightener (10) and sealing ring (11); Big gun head body (4) is fixedly connected with by screw thread with the outlet pipe (1) of fire water monitor, and is locked by holding screw I (2); By sealing ring (11) sealing between big gun head body (4) and outlet pipe (1); Interference fit is adopted between sleeve (3) and big gun head body (4), sleeve (3) one end contacts with outlet pipe (1) exit end face, and sleeve (3) other end contacts with flow straightener (10) inlet end face; Flow straightener (10) is arranged in big gun head body (4), flow straightener (10) inlet end face is by sleeve (3) location, and flow straightener (10) exit end face is located by the convex shoulder of big gun head body (4); Flow straightener (10) exit end face is provided with internal thread, is connected with double threaded screw (9) retaining thread; Double threaded screw (9) other end is connected with nozzle core (7) retaining thread; Anti-return nut (6) is used for fixing double threaded screw (9) and nozzle core (7); Adopt screw thread to be fixedly connected with between hand guard glove (5) with big gun head body (4), hand guard glove (5) and big gun head body (4) are locked by holding screw II (8).
2. a kind of flow straightener cross section according to claim 1 is the water mists fire water monitor head of double-layer circular tube shape, it is characterized in that: flow straightener (10) cross section is double-layer circular tube shape; Internal layer and outer pipe all install 6 fins, and mutually evenly staggered between fin; The outer floor leading portion of flow straightener (10) linearly shrinks, and is convenient to flow straightener (10) and installs and location.
CN201420630726.9U 2014-10-27 2014-10-27 A kind of flow straightener cross section is the water mists fire water monitor head of double-layer circular tube shape Expired - Fee Related CN204158924U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420630726.9U CN204158924U (en) 2014-10-27 2014-10-27 A kind of flow straightener cross section is the water mists fire water monitor head of double-layer circular tube shape

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420630726.9U CN204158924U (en) 2014-10-27 2014-10-27 A kind of flow straightener cross section is the water mists fire water monitor head of double-layer circular tube shape

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CN204158924U true CN204158924U (en) 2015-02-18

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104941095A (en) * 2015-06-16 2015-09-30 江苏大学 Despin device for long-range straight-flow type fire water monitor and processing process
CN105582630A (en) * 2016-03-14 2016-05-18 徐工集团工程机械有限公司 Fire monitor head and fire monitor
CN105854208A (en) * 2016-04-20 2016-08-17 江苏大学 Spiral rectifying device for monitor head of fire-fighting monitor
CN105944268A (en) * 2016-06-29 2016-09-21 徐工集团工程机械有限公司 Deluge gun head and deluge gun

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104941095A (en) * 2015-06-16 2015-09-30 江苏大学 Despin device for long-range straight-flow type fire water monitor and processing process
CN104941095B (en) * 2015-06-16 2017-12-22 江苏大学 A kind of Far Range single flow fire water monitor racemization device and processing technology
CN105582630A (en) * 2016-03-14 2016-05-18 徐工集团工程机械有限公司 Fire monitor head and fire monitor
CN105854208A (en) * 2016-04-20 2016-08-17 江苏大学 Spiral rectifying device for monitor head of fire-fighting monitor
CN105854208B (en) * 2016-04-20 2018-12-14 江苏大学 A kind of spiral shape fairing of fire water monitor head
CN105944268A (en) * 2016-06-29 2016-09-21 徐工集团工程机械有限公司 Deluge gun head and deluge gun

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GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150218

Termination date: 20151027