CN212730792U

CN212730792U - High-pressure water mist spray head

Info

Publication number: CN212730792U
Application number: CN202021258456.5U
Authority: CN
Inventors: 董淑泉; 刘璐
Original assignee: Henan Yongan Electric Fire Detection Co ltd
Current assignee: Henan Yongan Electric Fire Detection Co ltd
Priority date: 2020-07-02
Filing date: 2020-07-02
Publication date: 2021-03-19
Anticipated expiration: 2030-07-02

Abstract

The utility model provides a high-pressure water mist spray head, which comprises a nozzle, wherein the upper part of the nozzle is screwed with a connecting piece used for being connected with a water pipe, and the lower part of the nozzle is screwed with an atomizing head; the atomizing head comprises an atomizing chamber, an annular air cavity is arranged above the atomizing head, an air inlet communicated to the annular air cavity is formed in the side face of the atomizing head, a plurality of vent holes communicated to the atomizing chamber are uniformly formed in the annular air cavity along the circumferential direction, and an atomizing core is arranged below the atomizing chamber; a plurality of first hole for water sprayings that extend to the atomizing cavity are seted up to the bottom equipartition of nozzle, and the bottom intermediate position of nozzle is equipped with downwardly extending's cylinder cavity, and a plurality of second hole for water sprayings that extend to the atomizing cavity, the axial mutually perpendicular of first hole for water sprayings, second hole for water sprayings are seted up along circumference to the lateral wall of cylinder cavity. The utility model discloses can carry out high-efficient atomization to water and handle, can make water smoke avoid the interference of crosswind as far as possible simultaneously, also can improve the momentum of water smoke itself, reinforcing fire extinguishing effect.

Description

High-pressure water mist spray head

Technical Field

The utility model relates to a fire water smoke shower nozzle technical field, concretely relates to thin water smoke shower nozzle of high pressure.

Background

In recent years, the application of the water mist fire extinguishing technology is paid attention by researchers in the field of fire disaster prevention, and the water mist fire extinguishing technology is widely applied to extinguishing various fires nowadays. Both atomization methods have advantages and disadvantages. The axial momentum of direct atomization is larger, so that the wind resistance is stronger, the atomization effect is poor, and the fire extinguishing performance is weaker; the atomization effect of the rotational flow atomization is better than that of the direct injection atomization, the fire extinguishing performance is better, but the axial kinetic energy is poorer, and the wind resistance is weak. Thus. Although the swirl atomizing nozzle has good atomizing effect, better fire extinguishing performance and strong fire extinguishing performance, the swirl atomizing nozzle is only suitable for indoor application, and is used for outdoor fire extinguishing, the generated water mist is extremely easy to be blown away by wind due to small fog drop particles and insufficient axial momentum, so that the fire extinguishing performance is reduced, and even the fire extinguishing effect is lost.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the not enough of prior art, provide a thin water smoke shower nozzle of high pressure that atomization effect is good and anti-wind ability is strong, concrete scheme as follows:

a high-pressure water mist spray head comprises a nozzle, wherein the upper part of the nozzle is in threaded connection with a connecting piece used for being connected with a water pipe, the lower part of the nozzle is in threaded connection with an atomizing head, and the nozzle, the connecting piece and the atomizing head are coaxial; the atomizing head comprises an atomizing chamber, an annular air cavity is arranged above the atomizing head, an air inlet communicated to the annular air cavity is formed in the side face of the atomizing head, a plurality of vent holes communicated to the atomizing chamber are uniformly distributed in the annular air cavity along the circumferential direction, and an atomizing core is arranged below the atomizing chamber; the bottom of nozzle has seted up a plurality ofly along the circumference equipartition and has extended to the first hole for water spraying of atomizing cavity, the bottom intermediate position of nozzle is equipped with downwardly extending's cylinder cavity, the lateral wall of cylinder cavity has seted up a plurality ofly along the circumference and has extended to atomizing cavity and with a plurality of the second hole for water spraying that first hole for water spraying corresponds respectively, the axial mutually perpendicular of first hole for water spraying, second hole for water spraying.

Based on the above, the bottom of the annular air cavity is further provided with an annular air duct extending downwards, and the annular air duct is coaxial with the atomizing head.

Based on the above, the axial included angles between the axial directions of the first water spray hole and the second water spray hole and the axial direction of the nozzle are both 45 degrees.

On the basis, the top of nozzle is equipped with the filter screen, the filter screen includes the annular base member and sets up otter board in the middle of the annular base member, the inside of connecting piece is equipped with the annular flange of annular base member crimping at the nozzle top.

The utility model discloses relative prior art has substantive characteristics and progress, specifically speaking, the utility model has the following advantages:

1. the utility model discloses in, through set up the filter screen between connecting piece and nozzle, can effectively detach aquatic impurity, avoid blockking up the atomizing core.

2. The utility model discloses in, through setting up mutually perpendicular's first hole for water spraying, second hole for water spraying, utilize the impact between the water can tentatively carry out atomization treatment to rivers.

3. The utility model discloses in, through set up annular air cavity on the atomising head, set up the ventilation hole of intercommunication atomising chamber in the annular air cavity, accessible high-pressure draught blows away the processing once more to the water after the preliminary atomization in the atomising chamber, then discharges through the atomizing core.

4. The utility model discloses in, through set up annular wind channel on the atomising head, can form an annular air curtain to following the interior exhaust water smoke of atomizing, the anti crosswind's of reinforcing water smoke ability increases the momentum of water smoke simultaneously, improves the fire extinguishing effect of water smoke.

Drawings

Fig. 1 is a cross-sectional view of the overall structure of the present invention.

Fig. 2 is a front view of the external structure of the present invention.

In the figure: 1. a nozzle; 11. a cylindrical chamber; 12. a first water spray hole; 13. a second water jet hole; 2. a connecting member; 21. an annular flange; 3. a filter screen; 31. a screen plate; 32. an annular base; 4. an atomizing head; 41. an annular air cavity; 42. an air inlet; 43. a vent hole; 44. an annular air duct; 45. an atomizing chamber; 5. an atomizing core.

Detailed Description

The technical solution of the present invention will be described in further detail through the following embodiments.

Examples

As shown in fig. 1-2, the utility model provides a high-pressure water mist spray head, including nozzle 1, the upper portion spiro union of nozzle 1 has been used for with water piping connection's connecting piece 2, and the lower part spiro union of nozzle 1 has atomising head 4, nozzle 1, connecting piece 2 and atomising head 4 are coaxial.

The atomizing head 4 comprises an atomizing chamber 45, an annular air cavity 41 is arranged above the atomizing head 4, the side face of the atomizing head 4 is provided with an air inlet 42 communicated to the annular air cavity 41, a plurality of ventilation holes 43 communicated to the atomizing chamber 45 are uniformly distributed in the annular air cavity 41 along the circumferential direction, and an atomizing core 5 is arranged below the atomizing chamber 45.

The bottom of nozzle 1 has been seted up a plurality of extensions along the circumference equipartition and has been reached atomizing chamber 45's first hole for water spraying 12, nozzle 1's bottom intermediate position is equipped with downwardly extending's cylinder chamber 11, a plurality of extensions have been seted up along circumference to cylinder chamber 11's lateral wall a plurality of extensions to atomizing chamber 45 and with a plurality of second hole for water spraying 13 that first hole for water spraying 12 corresponds respectively through this structural design, can make from first hole for water spraying 12, the impact of second hole for water spraying 13 exhaust each other carries out preliminary atomization processing.

It should be noted that the axial directions of the first water jet hole 12 and the second water jet hole 13 are perpendicular to each other, so as to ensure the impact effect of the water ejected from the first water jet hole 12 and the second water jet hole 13.

In addition, the axial included angles between the first water spray hole 12 and the second water spray hole 13 and the axial included angle between the nozzle 1 are both 45 degrees, so that the atomized water mist is convenient to impact on the atomizing core 5 and is discharged outwards.

In order to ensure that the water mist sprayed out of the atomizing core 5 avoids the interference of outside side wind and improve the momentum of the water mist, the bottom of the annular air cavity 41 is further provided with an annular air duct 44 extending downwards, and the annular air duct 44 is coaxial with the atomizing head 4.

In order to prevent impurities from blocking the atomizing core 5 in consideration of possible impurities contained in water, a filter net 3 is provided on the top of the nozzle 1, and the filter net 3 includes an annular base 32 and a mesh plate 31 disposed in the middle of the annular base 32. An annular flange 21 for crimping the annular base body 32 to the top of the nozzle 1 is provided inside the connecting piece 2.

The utility model discloses specific theory of operation as follows: high-pressure rivers get into connecting piece 2 after earlier through filter screen 3 with wherein impurity filtering, then high-pressure rivers discharge from first hole for water spraying 12, second hole for water spraying 13 and get into atomizing chamber 45 and strike each other and carry out preliminary atomization processing, simultaneously, the high-pressure gas of discharging from ventilation hole 43 blows off preliminary atomization processing's water smoke once more and discharges after atomizing core 5 atomizing processing once more.

The high-pressure gas discharged from the annular air duct 44 forms an air curtain, and under the action of the air curtain, the water mist can effectively avoid the interference of crosswind, and meanwhile, the momentum of the water mist is also enhanced, so that the fire extinguishing effect of the water mist is improved.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims

1. A high-pressure water mist spray head is characterized in that: the device comprises a nozzle (1), wherein the upper part of the nozzle (1) is in threaded connection with a connecting piece (2) used for being connected with a water pipe, the lower part of the nozzle (1) is in threaded connection with an atomizing head (4), and the nozzle (1), the connecting piece (2) and the atomizing head (4) are coaxial; the atomizing head (4) comprises an atomizing chamber (45), an annular air cavity (41) is arranged above the atomizing head (4), an air inlet (42) communicated with the annular air cavity (41) is formed in the side face of the atomizing head (4), a plurality of ventilation holes (43) communicated with the atomizing chamber (45) are uniformly formed in the annular air cavity (41) along the circumferential direction, and an atomizing core (5) is arranged below the atomizing chamber (45); the bottom of nozzle (1) has been seted up a plurality ofly along the circumference equipartition and has been extended to first hole for water spraying (12) of atomizing cavity (45), the bottom intermediate position of nozzle (1) is equipped with downwardly extending's cylinder cavity (11), a plurality ofly have been seted up along circumference to the lateral wall of cylinder cavity (11) and have been extended to atomizing cavity (45) and with a plurality of second hole for water spraying (13) that first hole for water spraying (12) correspond respectively, the axial mutually perpendicular of first hole for water spraying (12), second hole for water spraying (13).

2. The high pressure water mist head of claim 1, wherein: the bottom of the annular air cavity (41) is also provided with an annular air duct (44) extending downwards, and the annular air duct (44) is coaxial with the atomizing head (4).

3. The high pressure water mist head of claim 1, wherein: the axial included angles of the first water spray hole (12) and the second water spray hole (13) and the axial included angle of the nozzle (1) are both 45 degrees.

4. The high pressure water mist head of claim 1, wherein: the top of nozzle (1) is equipped with filter screen (3), filter screen (3) include annular base member (32) and set up otter board (31) in the middle of annular base member (32), the inside of connecting piece (2) is equipped with annular flange (21) at nozzle (1) top with annular base member (32) crimping.