CN111249658A

CN111249658A - Low-voltage single-phase water mist spray head

Info

Publication number: CN111249658A
Application number: CN202010069507.8A
Authority: CN
Inventors: 陈健; 樊恩玺; 赵俊青; 许文博
Original assignee: Shenyang Aerospace University
Current assignee: Shenyang Aerospace University
Priority date: 2020-01-21
Filing date: 2020-01-21
Publication date: 2020-06-09
Anticipated expiration: 2040-01-21
Also published as: CN111249658B

Abstract

The invention provides a low-pressure single-phase water mist sprayer which comprises a threaded pipe and a sprayer body, wherein the sprayer body comprises a sprayer connecting part and a nozzle part, the sprayer connecting part is connected with the threaded pipe to enable the threaded pipe to be connected with the sprayer body, a plurality of water outlet holes are formed in the outer wall of the nozzle part, and internal threads are arranged on the inner wall of the water outlet holes.

Description

Low-voltage single-phase water mist spray head

Technical Field

The invention belongs to the technical field of fire safety, and particularly relates to an improved water mist spray head structure.

Background

At present, fire disasters are more and more complicated, a water mist technology is rapidly developed due to the advantages of reducing the temperature of a fire scene, adsorbing suspended matters in air to enhance the visibility of the fire scene and the like, and high-pressure water mist is mainly used in current engineering application, but a high-pressure water mist nozzle has certain defects, mainly high system working pressure, complex system pipelines and higher equipment requirement; the high-pressure water mist spray heads have small protection radius, so that the number of the spray heads in a unit protection area is excessive, and the engineering cost is high; most of high-pressure water mist nozzles are centrifugal nozzles, the mist momentum is small, the structure of the nozzles is complex, and the manufacturing cost of the nozzles is high.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art or the related art.

Therefore, the invention provides a low-pressure single-phase water mist spray head.

In view of the above, the present invention provides a low-pressure single-phase water mist sprayer, which comprises a threaded pipe and a sprayer body, wherein the sprayer body comprises a sprayer connecting part and a nozzle part, the sprayer connecting part is connected with the threaded pipe so as to connect the threaded pipe with the sprayer body, the outer wall of the nozzle part is provided with a plurality of water outlets, and the inner wall of each water outlet is provided with an internal thread.

Preferably, the nozzle connecting part and the nozzle part are integrally formed, the nozzle connecting part is of a cylindrical tubular structure, the inner wall of the nozzle connecting part is provided with internal threads, and the nozzle part is of a hemispherical cavity structure.

Preferably, the outer wall of the threaded pipe is provided with external threads, and the threaded pipe is in threaded connection with the spray head connecting part.

Preferably, the plurality of water outlet holes are evenly distributed on the nozzle portion.

Preferably, the low-pressure single-phase water mist nozzle further comprises a central hole, the central hole is formed in the center of the outer wall of the hemisphere of the nozzle portion, and the inner wall of the central hole is provided with internal threads.

Preferably, the plurality of water outlet holes are uniformly formed on the outer wall of the nozzle part by taking the central hole as a center.

Preferably, the number of the water outlet holes is 8, and an included angle between the axis of the water outlet hole and the axis of the central hole is 45 degrees.

Preferably, the sprayer body is made of polycarbonate material.

Preferably, the aperture of the water outlet hole is 2mm, the hole depth is 5mm, the distance between internal threads on the inner wall of the water outlet hole is 1mm, the aperture of the central hole is 2mm, the hole depth is 5mm, and the distance between internal threads on the inner wall of the water outlet hole is 1 mm. .

Compared with the prior art, the invention has the beneficial effects that: this shower nozzle of other thin water smoke shower nozzles relatively can reach in the extinguishing process, just can realize atomizing under the low pressure state, and the protection scope of shower nozzle is bigger, has better fire extinguishing effect simultaneously to shower nozzle simple structure processing is convenient, and the cost is lower, and the product input cost is little, market is great, therefore has better development prospect.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 shows a schematic view of the overall structure of a low-pressure single-phase water mist head according to an embodiment of the invention;

FIG. 2 shows a cross-sectional view of a low pressure single phase water mist head according to an embodiment of the invention;

FIG. 3 shows a cross-sectional view of the outlet opening of the low-pressure single-phase water mist head according to one embodiment of the invention;

FIG. 4 is a schematic structural view of a head body of a low-pressure single-phase water mist head according to an embodiment of the invention

Wherein: 1, a threaded pipe; 2, a nozzle body; 21 a nozzle connecting part; 22 a nozzle portion; 221 water outlet; 222, and a central aperture.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

A low pressure single phase water mist head according to some embodiments of the invention will now be described with reference to figures 1 to 4.

In an embodiment of the present invention, as shown in fig. 1 to 4, the present invention provides a low-pressure single-phase water mist sprayer, which includes a threaded pipe 1 and a sprayer body 2, wherein the sprayer body 2 includes a sprayer connecting portion 21 and a nozzle portion 22, the sprayer connecting portion 21 is connected to the threaded pipe 1, so that the threaded pipe 1 is connected to the sprayer body 2, the outer wall of the nozzle portion 22 is provided with a plurality of water outlet holes 221, and inner walls of the water outlet holes 221 are provided with internal threads.

In this embodiment, the threaded pipe 1 is connected at one end to a water pipe and at the other end to the head body 2 through the head connecting portion 21, the head connecting portion 21 is connected to the nozzle portion 22, and the other end of the water pipe is connected to a water pump, so that when A, B, E or F-class fires occur, (according to the provisions of the national Standard fire Classification (GB/T4968- -2008), the fires are classified into A, B, C, D, E, F six classes Titanium, zirconium, lithium, etc. fire. E-type fire: a live fire. The object is burnt in a charged manner. For example, electrical fire in equipment such as transformers. And F-type fire: cooking materials in a cooking appliance, such as animal fat or vegetable fat fire), a water pump is started, water flows into a threaded pipe 1 and a nozzle connecting part 21 in sequence through a water pipe, then passes through a nozzle part 22, because threads are arranged on the inner wall of a water outlet hole 221, water rotates and accelerates when flowing through the water outlet hole 221 to form a water column rotating at a high speed, the water column is sprayed out from the water outlet hole 221 under the action of centrifugal force and is torn by air to form fine water mist, single-phase flow atomization is realized, the fire field is cooled and cooled, fire control and extinguishment are carried out, suspended matters in the fire field are adsorbed, visibility is enhanced, the evacuation of trapped people is facilitated, compared with other fine water mist nozzles, the fine water mist nozzle in the application is a single-phase flow nozzle, in the prior art, a single-phase flow fine water mist system needs a high-pressure environment when in use, and the fine water mist nozzle in the application can realize, simple structure, good fire extinguishing effect, large protection range, low system cost and better market and development prospect.

In one embodiment of the present invention, as shown in fig. 1 and 4, it is preferable that the nozzle connecting portion 21 and the nozzle portion 22 are integrally formed, the nozzle connecting portion 21 has a cylindrical tubular structure, the inner wall of the nozzle connecting portion 21 is provided with internal threads, and the nozzle portion 22 has a hemispherical cavity structure.

In this embodiment, the nozzle connecting portion 21 is a cylindrical tubular structure with internal threads, the nozzle portion 22 has a hemispherical cavity structure, and water flows through the nozzle connecting portion 21 and enters the nozzle portion 22 of the hemispherical cavity structure, and is ejected through the outlet 221 with internal threads to realize single-phase flow atomization. Shower nozzle connecting portion 21 and nozzle portion 22 are integrated into one piece, and it is effectual to seal, and the preparation process is simple simultaneously, and efficient and with low costs, and in concrete operation, shower nozzle connecting portion 21 is long for 12mm, and the wall thickness is 20mm for 5mm pipe diameter, and the equipartition on the shower nozzle connecting portion 21 inner wall has 6 internal threads that the interval is 2 mm.

In one embodiment of the present invention, preferably, the outer wall of the threaded pipe 1 is provided with an external thread, and the threaded pipe 1 is threadedly coupled to the head connection part 21.

In this embodiment, the outer wall of the threaded pipe 1 is provided with external threads, which are matched with the internal threads on the inner wall of the nozzle connecting portion 21, so that one end of the threaded pipe 1 is in threaded connection with the nozzle body 2, the threaded pipe 1 and the nozzle body 2 can be detachably connected, and the other end of the threaded pipe 1 is in threaded connection with the water pipe.

In one embodiment of the present invention, preferably, as shown in fig. 1 and 2, the plurality of water outlet holes 221 are evenly distributed on the nozzle portion 22.

In this embodiment, the nozzle portion 22 has a hemispherical cavity structure, and the plurality of water outlet holes 221 are uniformly arranged on the nozzle portion 22, so that the protection range of the spray head is wider, and the fire extinguishing effect is better.

In one embodiment of the present invention, preferably, as shown in fig. 1 and 2, the low-pressure single-phase water mist head further comprises a central hole 222, the central hole 222 is opened at the center of the hemispherical outer wall of the nozzle part 22, and the inner wall of the central hole 222 is provided with internal threads.

In this embodiment, the nozzle portion 22 is a hemispherical cavity structure, and a central hole 222 with internal threads is disposed at the center of the hemispherical outer wall of the nozzle portion 22, so as to further enhance the atomization effect of the spray head and expand the protection range of the spray head.

In one embodiment of the present invention, preferably, as shown in fig. 1 and 2, the plurality of water outlet holes 221 are uniformly formed on the outer wall of the nozzle portion 22 centering on the central hole 222.

In this embodiment, the plurality of water outlet holes 221 are uniformly formed on the outer wall of the nozzle portion 22 around the central hole 222, the water outlet holes 221 are arranged to communicate with the central hole 222, water flows sequentially into the threaded pipe 1 and the nozzle connecting portion 21 through a water pipe, and then passes through the nozzle portion 22 to be sprayed out from the water outlet holes 221 and the central hole 222, and because the inner walls of the water outlet holes 221 and the central hole 222 are both provided with internal threads, single-phase flow atomization is realized in a low-pressure state, the amount of mist is further increased, the protection range of the nozzle is expanded, and the fire extinguishing effect is ensured.

In one embodiment of the present invention, preferably, as shown in fig. 2, the number of the water outlet holes 221 is 8, and an included angle between the axis of the water outlet hole 221 and the axis of the central hole 222 is 45 degrees

In this embodiment, the number of the water outlet holes 221 is 8, and the 8 water outlet holes 221 are uniformly arranged on the outer wall of the nozzle portion 22 with the center hole 222 as the center of circle, so that the fire extinguishing effect is good, and the protection radius is large.

In one embodiment of the present invention, the head body 2 is preferably made of polycarbonate material.

In this embodiment, the nozzle body 2 is made of polycarbonate, but other metal materials such as steel and copper may be used.

In one embodiment of the present invention, it is preferable that the diameter of the water outlet hole 221 is 2mm, the depth of the water outlet hole is 5mm, the pitch of the internal threads on the inner wall of the water outlet hole 221 is 1mm, the diameter of the central hole 222 is 2mm, the depth of the water outlet hole is 5mm, and the pitch of the internal threads on the inner wall of the central hole 222 is 1 mm.

In this embodiment, the size of the water outlet hole 221 is the same as that of the central hole 222, and the pitch of the internal threads of the water outlet hole 221 is the same as that of the central hole 222, so that the atomization effect is better.

In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be used in any one or more embodiments or examples.

Claims

1. The utility model provides a single-phase thin water smoke shower nozzle of low pressure which characterized in that, includes screwed pipe and shower nozzle body, the shower nozzle body includes shower nozzle connecting portion and nozzle portion, and shower nozzle connecting portion are connected with the screwed pipe, make screwed pipe and shower nozzle body coupling, and a plurality of apopores have been seted up to the nozzle portion outer wall, are provided with the internal thread on the apopore inner wall.

2. The low-pressure single-phase water mist head as claimed in claim 1, wherein the head connecting part and the nozzle part are integrally formed, the head connecting part is a cylindrical tubular structure, the inner wall of the head connecting part is provided with internal threads, and the nozzle part is a hemispherical cavity structure.

3. The low-pressure single-phase water mist head as claimed in claim 2, wherein the outer wall of the threaded pipe is provided with external threads, and the threaded pipe is in threaded connection with the head connection part.

4. The low pressure single phase water mist head of claim 3, wherein the plurality of outlet openings are evenly distributed across the nozzle portion.

5. The low pressure single phase water mist head of claim 3, further comprising a central bore, the central bore being centrally disposed in the outer hemispherical wall of the nozzle portion, the inner wall of the central bore being provided with internal threads.

6. The low pressure single phase water mist head of claim 5, wherein the plurality of outlet holes are evenly arranged on the outer wall of the nozzle portion with the center hole as the center.

7. The low-pressure single-phase water mist head as claimed in claim 6, wherein the number of the water outlet holes is 8, and an included angle between the axis of the water outlet hole and the axis of the central hole is 45 °.

8. The low-pressure single-phase water mist head of claim 1, wherein the head body is made of polycarbonate material.

9. The low-pressure single-phase water mist head of claim 5, wherein the diameter of the water outlet hole is 2mm, the depth of the water outlet hole is 5mm, the pitch of the internal threads on the inner wall of the water outlet hole is 1mm, the diameter of the central hole is 2mm, the depth of the water outlet hole is 5mm, and the pitch of the internal threads on the inner wall of the water outlet hole is 1 mm.