Low-pressure rotational flow atomization water distribution nozzle

Abstract

The utility model discloses a low-pressure rotational flow atomization water distribution spray head which comprises a rotational flow shell, the rotational flow shell is cylindrical, a Laval nozzle is arranged at the top of the rotational flow shell, an eccentric tangential water inlet pipe is arranged on one side of the bottom of the rotational flow shell, a central rotational flow column is arranged in the rotational flow shell, and a rotational flow spiral piece is arranged on the central rotational flow column. Compared with the prior art, the utility model has the advantages that high pressure is not required for water feeding, and only one half of the water pressure required by the existing similar products is required. No matter whether low-pressure water inflow or high-pressure water inflow occurs, normal work can be achieved.

Description

Technical Field

[0001] The utility model relates to a nozzle, in particular to a low-pressure swirl atomizing water distribution nozzle. Background Art

[0002] The utility model patent with the Chinese patent announcement number CN 201026477 Y and the patent number 200720010059.4 discloses a water jet swirl atomizer, which has the following advantages: 1. The atomization effect is very good. 2. The water quality requirement is not harsh, as long as the water after simple filtration can pass smoothly and produce atomization, and it will not be blocked. However, there is a disadvantage that it requires high water pressure. Water enters the swirl tube through the connecting pipe, generating a swirl, and the swirl water conflicts with the water entering the connecting pipe, forcing the water entering the connecting pipe to have a certain pressure to overcome the impact of the swirl water, so that the swirl water can only swirl upwards and be atomized out of the atomizer through the Laval nozzle. Practice has proved that when the atomizer of this patent is at low pressure, the water exiting the Laval nozzle is in a waterfall shape, and the atomization effect is lost. Therefore, the development of a low-pressure swirl atomizing water distribution nozzle has become a problem to be solved by those skilled in the art. Utility Model Content

[0003] The utility model is to solve the above-mentioned shortcomings and provides a low-pressure swirl atomizing water distribution nozzle.

[0004] The above-mentioned purpose of the utility model is achieved through the following technical scheme: a low-pressure swirl atomizing water distribution nozzle, including a swirl shell, the swirl shell is cylindrical, a Laval nozzle is provided on the top of the swirl shell, an eccentric tangential water inlet pipe is provided on one side of the bottom of the swirl shell, a central swirl column is provided in the swirl shell, and a swirl spiral blade is provided on the central swirl column.

[0005] Furthermore, the cyclone housing comprises a cyclone cylinder and a bottom plate, and the bottom plate is welded to the bottom of the cyclone cylinder.

[0006] Furthermore, the Laval nozzle is embedded in the top opening of the cyclone tube.

[0007] The advantages of the utility model compared with the prior art are: the utility model does not need high pressure for water inlet, only half of the water pressure required by the existing similar products is needed, and it can work normally regardless of low pressure water inlet or high pressure water inlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a cross-sectional view of the low-pressure swirl atomizing water distribution nozzle of the utility model.

[0009] Figure 2 It is a top view of the low-pressure swirl atomizing water distribution nozzle of the utility model.

[0010] Figure 3It is a sectional isometric view of the internal structure of the low-pressure swirl atomizing water distribution nozzle of the utility model.

[0011] Figure 4 It is an axonometric view of the low-pressure swirl atomizing water distribution nozzle of the utility model in working state. DETAILED DESCRIPTION

[0012] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0013] like Figures 1 to 4 As shown, a low-pressure swirl atomizing water-distributing nozzle includes a swirl shell, which is cylindrical, and includes a swirl barrel 2 and a bottom plate 3. The bottom plate 3 is welded to the bottom of the swirl barrel 2, and a Laval nozzle 1 is inlaid at the top opening of the swirl barrel 2. An eccentric hole is opened on one side of the bottom of the swirl barrel 2, and an eccentric tangential water inlet pipe 4 is welded. The interior of the swirl barrel 2 is a swirl chamber A, and a central swirl column 5 is provided in the swirl chamber. The central swirl column 5 is welded to the bottom plate 3, and a swirl spiral sheet 6 is provided on the central swirl column 5. The swirl spiral sheet 6 is installed and welded along the water inlet direction of the eccentric tangential water inlet pipe 4.

[0014] In practical application, such as Figures 1 to 4 As shown, the working process of a single low-pressure swirl atomizing water-distributing nozzle 8 is as follows: low-pressure water (or high-pressure water) enters the swirl tube 2 through the eccentric tangential water inlet pipe 4, and enters the swirl chamber at high speed along the swirl spiral blade 6 and around the central swirl column 5. Due to the swirl spiral blade 6 and the central swirl column 5, the swirl water does not conflict with the water entering through the eccentric tangential water inlet pipe 4, and even low-pressure water can enter the swirl tube 2 at high speed and reach the swirl chamber. After the high-speed rotating water enters the straight section of the Laval nozzle 1 through the contraction section of the Laval nozzle 1, the flow area is greatly reduced, and the flow rate is accelerated. After the rotating water with a high flow rate is sprayed through the Laval nozzle 1, it breaks free from the constraints of the Laval nozzle 1, and sprays a conical atomized water beam 7 under the action of the centrifugal force of the rotation inertia and the forward spraying force.

[0015] Application Example 1: One or more low-pressure swirl atomizing water distribution nozzles 8 are used in the tail gas recovery tower as water distributors to replace the drilled fishbone water distributors. Since the atomized water has a large contact area with the external swallowing gas, it can more effectively absorb the swallowing gas.

[0016] Application Example 2: One or more low-pressure swirl atomizing water distribution nozzles 8 are used in cooling towers to distribute water upward in a dot matrix, replacing the water distribution of fillers. Since the contact area between atomized water and cold dry air is larger than the water film distribution of fillers, the cooling effect of the cooling tower is better. In addition, the cost of cleaning and replacing fillers is reduced.

[0017] Application Example 3: One or more low-pressure swirl atomizing water distribution nozzles 8 are used in a water-driven fan high-speed rotating low-pressure atomizing cooling tower, and are used as low-pressure swirl atomizing water distribution nozzles in a water-driven fan suspended high-speed rotating low-pressure atomizing device.

[0018] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A low-pressure swirl atomizing water distribution nozzle, comprising a swirl shell, the swirl shell is cylindrical, a Laval nozzle is provided on the top of the swirl shell, and an eccentric tangential water inlet pipe is provided on one side of the bottom of the swirl shell, characterized in that: A central vortex column is arranged in the vortex shell, and a vortex spiral sheet is arranged on the central vortex column.

2. A low-pressure swirl atomizing water distribution nozzle according to claim 1, characterized in that: The cyclone shell comprises a cyclone cylinder and a bottom plate, and the bottom plate is welded to the bottom of the cyclone cylinder.

3. The low-pressure swirl atomizing water distribution nozzle according to claim 1, characterized in that: The Laval nozzle is embedded in the top opening of the cyclone tube.

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