Spray head with high structural strength

Abstract

A spray head with high structural strength relates to the technical field of cooling tower appliances and comprises a barrel shell, a first water inlet is formed in the upper end of the barrel shell, a water distribution disc is fixedly connected to the area, below the first water inlet, of the barrel shell, a second water inlet coaxial with the first water inlet is formed in the water distribution disc, and a plurality of water distribution blades are arranged on the periphery of the outer wall of the water distribution disc. And a transition part is coaxially and fixedly connected in the lower port of the barrel shell, and is provided with a flow guide port which is gradually expanded downwards. The utility model solves the problems that the connecting ribs and the water diversion teeth of the device in the prior art are easy to break under the impact of high-pressure water flow, the large inner cavity of the nozzle causes non-uniform water flow spraying, overlarge water spraying density, large spraying radius causes area increase of a waterless area and the like, the heat exchange efficiency is influenced, the nozzle cost is increased due to the breakage and damage of the nozzle, and the service life of the nozzle is prolonged. And the labor cost is increased due to nozzle replacement.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling tower appliances, in particular to a spray head with high structural strength. Background Art

[0002] A cooling tower is a device that uses the contact between water and air to dissipate waste heat generated in industry or refrigeration and air conditioning through evaporation. The nozzle is the most important structure for the cooling tower to achieve the heat exchange function. The structure and performance of the nozzle directly determine the uniformity and density of the circulating cooling water spray, thereby affecting the heat exchange effect of the circulating cooling water.

[0003] A patent CN201876188U is disclosed in the prior art, which includes a main tube, which also includes more than two discs; each disc has a main disc and blades evenly distributed around the main disc, and a guide hole is opened in the center of the main disc; each disc is located below the main tube and coaxial with the main tube; the adjacent upper and lower discs meet: the outer diameter of the blades of the upper disc> the outer diameter of the blades of the lower disc> the outer diameter of the main disc of the upper disc> the outer diameter of the main disc of the lower disc> the inner diameter of the guide hole of the upper disc> the inner diameter of the guide hole of the lower disc.

[0004] As the existing devices including the above patents are used, the shortcomings of the technology are gradually exposed, which are mainly manifested in the following aspects:

[0005] Existing nozzle structures, such as three-splash type, arm nozzle, volute nozzle, etc., have connecting ribs and water-dividing teeth that are easy to break under the impact of high-pressure water flow, the large inner cavity of the nozzle leads to uneven water spraying, the water density is too large, and the large spraying radius leads to an increase in the waterless area. These disadvantages not only affect the heat exchange efficiency, but also increase the cost of the nozzle due to nozzle breakage and damage, and increase the labor cost due to replacement of the nozzle.

[0006] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0007] In view of the defects in the prior art, the utility model provides a nozzle with high structural strength to solve the shortcomings of the devices in traditional technologies, such as the connecting ribs and water-dividing teeth that are easy to break under the impact of high-pressure water flow, the large inner cavity of the nozzle resulting in uneven water spraying, the excessive water density, and the large spraying radius resulting in an increase in the area of ​​the waterless zone. These shortcomings not only affect the heat exchange efficiency, but also increase the cost of the nozzle due to the breakage and damage of the nozzle, and increase the labor cost due to replacing the nozzle.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] The nozzle with high structural strength comprises a shell, wherein the upper end of the shell is provided with a first water inlet, a water distribution plate is fixedly connected to the area of ​​the shell below the first water inlet, and a second water inlet is provided on the water distribution plate coaxially with the first water inlet.

[0010] The outer wall of the water distribution plate is provided with a plurality of water distribution blades.

[0011] A transition portion is coaxially fixedly connected in the lower end of the cylinder shell, and the transition portion is provided with a guide port which is gradually expanded downward.

[0012] As an optimized solution, three water-dividing blades are arranged in a spiral shape, and the angle between adjacent water-dividing blades is 120°.

[0013] As an optimized solution, the horizontal angle of the water-dividing blades is 50°-55°.

[0014] As an optimized solution, a cylinder body is fixedly connected to the upper port of the cylinder shell, and the inner cavity of the cylinder body is the first water inlet.

[0015] As an optimized solution, the diameter of the first water inlet is gradually reduced from top to bottom.

[0016] As an optimized solution, the outer wall of the water-dividing blade is fixedly connected to the inner wall of the cylinder shell.

[0017] As an optimized solution, an external thread is provided on the outer wall of the cylindrical shell near the upper port.

[0018] As an optimized solution, a positioning boss is provided on the outer wall of the cylinder shell below the external thread.

[0019] As an optimized solution, the top surface of the transition portion is vertically arranged to the inner wall of the cylinder shell.

[0020] As an optimized solution, the shell is connected to the cooling tower water pipe via external threads.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] The utility model removes the connecting ribs and water-dividing teeth in the common technology, adopts the method of placing a water-dividing plate inside, and the outside is an integrated shell with a certain thickness, thereby increasing the strength of the sprinkler head;

[0023] The water-dividing blades of the utility model adopt spiral blades with a certain angle, so that the circulating water can be dispersed by the water-dividing blades and then sprayed out through the guide port, so that the water flow spraying is more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0025] Figure 1 It is a schematic diagram of the structure of the utility model;

[0026] Figure 2 It is a schematic diagram of the angle between adjacent water-dividing blades of the utility model;

[0027] Figure 3 It is a schematic diagram of the horizontal angle of the water-dividing blade of the utility model.

[0028] In the figure: 1-cylinder shell, 2-first water inlet, 3-second water inlet, 4-water distribution plate, 5-water distribution blades, 6-transition part, 7-flow guide port, 8-external thread, 9-positioning boss. DETAILED DESCRIPTION

[0029] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0030] like Figures 1 to 3 As shown, the nozzle with high structural strength comprises a shell 1, wherein the upper end of the shell 1 is provided with a first water inlet 2, a water separation plate 4 is fixedly connected to the area of ​​the shell 1 below the first water inlet 2, and a second water inlet 3 coaxially arranged with the first water inlet 2 is provided on the water separation plate 4.

[0031] The outer wall of the water distribution plate 4 is provided with a plurality of water distribution blades 5.

[0032] A transition portion 6 is coaxially fixedly connected to the lower end of the cylinder shell 1 . The transition portion 6 is provided with a guide port 7 which is gradually expanded downward and has a certain curvature, so that the circulating water can be evenly sprayed out along the guide port 7 .

[0033] The water distribution plate 4 is used for secondary diversion of the cooling water entering through the first water inlet 2 .

[0034] The second water inlet 3 is located in the center of the nozzle and is used for secondary diversion of the cooling water entering through the first water inlet 2 .

[0035] The water-dividing blades 5 are three in a spiral shape, and the angle β between adjacent water-dividing blades 5 is 120°.

[0036] The horizontal angle α of the water-dividing blade 5 is 50°-55°, and the water distribution uniformity is optimal and the empty water area is minimal.

[0037] A cylinder body is fixedly connected to the upper end of the cylinder shell 1 , and the inner cavity of the cylinder body is the first water inlet 2 .

[0038] The diameter of the first water inlet 2 is gradually reduced from top to bottom.

[0039] The outer wall of the water-dividing blade 5 is fixedly connected to the inner wall of the cylinder shell 1 .

[0040] An external thread 8 is provided on the outer wall of the cylinder shell 1 near the upper port.

[0041] A positioning boss 9 is provided on the outer wall of the cylinder shell 1 below the external thread 8 .

[0042] The top surface of the transition portion 6 is vertically arranged to the inner wall of the cylinder shell 1 .

[0043] The shell 1 is connected to the cooling tower water pipe via an external thread 8 .

[0044] Compared with the prior art, the beneficial effects of the utility model are:

[0045] The utility model removes the connecting ribs and water-dividing teeth in the common technology, and adopts a water-dividing plate 4 placed inside, and an integrated shell with a certain thickness outside, thereby increasing the strength of the nozzle;

[0046] The water-dividing blade 5 of the utility model adopts a spiral blade with a certain angle, so that the circulating water can be dispersed by the water-dividing blade 5 and then sprayed out through the guide port 7, so that the water flow spraying is more uniform.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A nozzle with high structural strength, characterized by: The invention comprises a cylindrical shell (1), wherein the upper end of the cylindrical shell (1) is provided with a first water inlet (2), a water separation plate (4) is fixedly connected to the area of ​​the cylindrical shell (1) below the first water inlet (2), and the water separation plate (4) is provided with a second water inlet (3) coaxially arranged with the first water inlet (2), A plurality of water-dividing blades (5) are arranged on the outer wall of the water-dividing plate (4). A transition portion (6) is coaxially fixedly connected to the lower end of the cylinder shell (1), and the transition portion (6) is provided with a flow guide port (7) which is gradually expanded downward.

2. The nozzle with high structural strength according to claim 1, characterized in that: The water-dividing blades (5) are arranged in three spiral shapes, and the angle between adjacent water-dividing blades (5) is 120°.

3. The nozzle with high structural strength according to claim 1, characterized in that: The horizontal angle of the water-dividing blades (5) is 50°-55°.

4. The nozzle with high structural strength according to claim 1, characterized in that: A cylinder body is fixedly connected to the upper end of the cylinder shell (1), and the inner cavity of the cylinder body is the first water inlet (2).

5. The nozzle with high structural strength according to claim 1, characterized in that: The diameter of the first water inlet (2) is gradually reduced from top to bottom.

6. The nozzle with high structural strength according to claim 1, characterized in that: The outer wall of the water-dividing blade (5) is fixedly connected to the inner wall of the cylindrical shell (1).

7. The nozzle with high structural strength according to claim 1, characterized in that: An external thread (8) is provided on the outer wall of the cylinder shell (1) close to the upper port.

8. The nozzle with high structural strength according to claim 7, characterized in that: A positioning boss (9) is provided on the outer wall of the cylinder shell (1) below the external thread (8).

9. The nozzle with high structural strength according to claim 1, characterized in that: The top surface of the transition portion (6) is vertically arranged to the inner wall of the cylinder shell (1).

10. The nozzle with high structural strength according to claim 7, characterized in that: The cylinder shell (1) is connected to the cooling tower water pipe via an external thread (8).

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