CN203842731U - Sprayer for desulfurizing and dedusting - Google Patents

Abstract

The utility model discloses a sprayer for desulfurizing and dedusting. The sprayer comprises an upper shell (1) and a lower shell (2), wherein the upper shell (1) and the lower shell (2) are spirally connected via an external thread (3) at the lower end of the upper shell (1) and an internal thread (4) at the upper end of the lower shell (2), an annular step (5) is arranged on an inner wall of the lower shell (2) and positioned on the lower side of the internal thread (4), a support ring (6) is arranged on the step (5), a porous spraying piece (7) is arranged on the support ring (6), vertical spraying holes (8) are formed in the middle of the porous spraying piece (7), and open spiral spraying grooves (9) are formed in the circumferential face of the porous spraying piece (7). Due to designs of spraying holes, the spiral spraying grooves and an internal concave spherical surface, sprayed water flows are good in rotational flow properties and atomization effect and low in impact to a spraying structure, and the sprayer is long in service life. In addition, the sprayer for desulfurizing and dedusting has the advantages of simple structure, convenience in use, energy conservation and suitability in promotion.

Description

Nozzle for desulfurization and dust removal

technical field

The utility model relates to a desulfurization and dust removal device, in particular to a nozzle applied to the desulfurization and dust removal device.

Background technique

For the wet desulfurization and dust removal nozzles for flue gas wet desulfurization and dust removal in power plants, cement plants, etc., due to processing reasons, the water spray plate installed inside the nozzle is only drilled with some oblique holes on it, and the swirl chamber of the lower shell of the nozzle adopts Square or conical structure, such oblique spray holes and square or conical swirl chamber nozzles, the spray swirl effect is not good, resulting in poor spray mist efficiency; in addition, under the impact of water pressure, the wear is fast and the service life is shortened. In addition, due to the expansion of the nozzle hole due to wear and tear, the fogging effect is even worse, which affects the effect of spray desulfurization and dust removal. And because the spray head itself is poor in fogging, the only way to make up for it is to increase the water pressure in the application, which leads to an increase in energy consumption.

Utility model content

The purpose of the utility model is to provide a nozzle for desulfurization and dust removal with energy saving, good fogging performance and long service life aiming at the defects of the prior art.

The purpose of this utility model is solved by the following technical solutions:

A nozzle for desulfurization and dust removal, comprising an upper shell and a lower shell, the upper shell and the lower shell are connected in spiral through the external thread at the lower end of the upper shell and the internal thread at the upper end of the lower shell, and the inner wall of the lower shell is provided with An annular step, the step is located on the lower side of the internal thread, a support ring is provided on the step, a porous nozzle is provided on the support ring, a vertical nozzle hole is provided in the middle of the porous nozzle, and a vertical nozzle is provided on the peripheral surface of the porous nozzle. Spiral spout with openings.

The spray holes are evenly distributed on the porous spray sheet.

The inner wall of the lower casing is concave spherical.

The upper end of the upper shell is provided with a constricted connecting pipe with an external thread.

A boss for connection is provided on the outside of the lower end of the lower casing.

A nozzle is provided at the bottom of the lower end of the lower casing.

Compared with the prior art, the utility model has the following advantages:

Since the utility model adopts the design of the vertical spray hole in the middle and the spiral spray groove with the opening on the peripheral surface of the porous spray plate, and the inner wall of the lower shell adopts the design of the inner concave spherical surface, the swirling flow characteristic of the sprayed water flow is good, and the spray water forms a high-speed The swirling flow diverges from the outlet of the nozzle to the surroundings, forming a good atomization shape, and the divergence angle is also large, which greatly improves the spray atomization effect, and at the same time reduces the impact of the water flow on the structure of the nozzle and prolongs the service life of the nozzle.

The utility model has a simple structure, can be conveniently installed on the spraying water delivery pipe, is convenient to use, has the effect of energy saving, and is suitable for popularization and use.

Description of drawings

Accompanying drawing 1 is the structural representation of the utility model;

Accompanying drawing 2 is the schematic diagram of the structure of the porous nozzle of the present invention.

Among them: 1—upper shell; 2—lower shell; 3—external thread; 4—internal thread; 5—step; 6—support ring; 7—porous spray sheet; 8—nozzle hole; 9—spiral spray groove; 10—neck connection pipe; 11—boss; 12—nozzle.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

As shown in Figure 1-2: a nozzle for desulfurization and dust removal, including an upper shell 1 with a necked connection pipe 10 with an external thread that can be connected to the spray water pipe at the upper end and a lower shell with an inner concave spherical surface body 2, the upper shell 1 and the lower shell 2 are spirally connected through the external thread 3 at the lower end of the upper shell 1 and the inner thread 4 at the upper end of the lower shell 2; in order to increase the swirl chamber area of the lower shell 2, the The inner wall of 2 is provided with an annular step 5, the step 5 is located at the lower side of the internal thread 4, the step 5 is provided with a support ring 6, the support ring 6 is provided with a porous nozzle 7, and the middle part of the porous nozzle 7 is provided with a uniform Distributed vertical spray holes 8, the peripheral surface of the porous spray sheet 7 are provided with open spiral spray grooves 9, and the spray holes 8 and the spiral spray grooves 9 together form a water spray spray groove, so that the swirl characteristics of the sprayed water flow are good, and the spray The water forms a high-speed swirl and diverges from the outlet of the nozzle to the surroundings, forming a good atomization shape with a large divergence angle, which greatly improves the spray atomization effect. In addition, the outer side of the lower end of the lower casing 2 is provided with a boss 11 for tightening with a polygonal bolt head, and the lower end bottom of the lower casing 2 is a nozzle 12 .

Since the utility model adopts the design of the vertical spray hole in the middle and the spiral spray groove with the opening on the peripheral surface of the porous spray plate, and the inner wall of the lower shell adopts the design of the inner concave spherical surface, the swirling flow characteristic of the sprayed water flow is good, and the spray water forms a high-speed The swirling flow diverges from the outlet of the nozzle to the surroundings, forming a good atomization shape, and the divergence angle is also large, which greatly improves the spray atomization effect, and at the same time reduces the impact of the water flow on the structure of the nozzle and prolongs the service life of the nozzle.

The technology not involved in the utility model can all be realized by prior art.

Claims (6)

1. A nozzle for desulfurization and dust removal, including an upper casing (1) and a lower casing (2), the upper casing (1) and the lower casing (2) pass through the external thread (3) at the lower end of the upper casing (1) ) and the internal thread (4) on the upper end of the lower casing (2) are spirally connected, and an annular step (5) is provided on the inner wall of the lower casing (2), and the step (5) is located on the lower side of the internal thread (4), The step (5) is provided with a support ring (6), and the support ring (6) is provided with a porous spray sheet (7), which is characterized in that the middle part of the porous spray sheet (7) is provided with a vertical spray hole (8) , the peripheral surface of the porous spray sheet (7) is provided with an open spiral spray groove (9). 2. The nozzle for desulfurization and dust removal according to claim 1, characterized in that the nozzle holes (8) are evenly distributed on the porous spray sheet (7). 3. The nozzle for desulfurization and dust removal according to claim 1, characterized in that the inner wall of the lower housing (2) is a concave spherical surface. 4. The nozzle for desulfurization and dust removal according to claim 1, characterized in that the upper end of the upper casing (1) is provided with a constricted connecting pipe (10) with an external thread. 5. The nozzle for desulfurization and dust removal according to claim 1, characterized in that a boss (11) for connection is provided outside the lower end of the lower housing (2). 6. The nozzle for desulfurization and dust removal according to claim 1, characterized in that a nozzle (12) is provided at the bottom of the lower end of the lower casing (2).