CN212575990U - Turbulent flow spray pipe for waste incineration wet washing tower - Google Patents

Abstract

The utility model provides a vortex spray tube for msw incineration wet scrubbing tower, the vortex spray tube includes the spray tube and is located one or more nozzles on the spray tube, and one or more nozzles are used for spraying compressed air. The turbulent flow spray pipe can improve the flow field uniformity and the absorption efficiency under the condition of smaller resistance aiming at the characteristics of small flue gas volume, large flue gas working condition change and small tower diameter of a wet washing tower in the waste incineration power plant, and can adjust the flow rate, the pressure and the spraying angle of compressed air to adapt to the flue gas under different working conditions.

Description

Turbulent flow spray pipe for waste incineration wet washing tower

Technical Field

The utility model relates to a flue gas vortex field in the wet scrubbing tower to specifically, relate to a vortex spray tube for msw incineration wet scrubbing tower.

Background

With the improvement of environmental protection requirements, part of key areas begin to implement stricter standards, the traditional semi-dry method in the waste incineration industry cannot meet the emission requirements of acidic substances such as HCl and SO2, a more efficient wet washing technology must be adopted, and higher requirements are provided for the absorption efficiency of a wet washing tower.

At present, the development of wet scrubbing towers in the thermal power industry is mature, but the problem that the flow field of flue gas is uneven still commonly exists, compared with the waste incineration industry, the waste incineration industry has the characteristics of small flue gas amount, large working condition change and the like, and the influence of the uneven distribution of the flow field of a small-diameter tower on the absorption efficiency is more obvious.

The existing wet scrubbing tower is characterized in that a flue gas inlet is usually arranged on the side surface of the middle lower part of a tower body and slightly inclines downwards, and flue gas enters a scrubbing tower and rushes to the opposite side of the tower wall and then upwards, so that the flue gas flow rate on the flue gas inlet side is low, and the flue gas flow rate on the opposite side is high. In order to improve the uniformity of the flow field, most of the prior art is to add flow equalizing devices, including additional rectifying grids, turbulent layer pipelines, rotary convergence coupling devices, etc., but these techniques have the disadvantages of large pressure loss (i.e., large resistance, large pressure drop when gas passes through), increased energy consumption, and non-adjustability.

Therefore, it is urgently needed to provide a turbulent flow spray pipe for a waste incineration wet washing tower, which can improve the uniformity and absorption efficiency of a flow field under the condition of smaller resistance and can adjust the flow rate, pressure and spray angle of compressed air to adapt to the smoke under different working conditions aiming at the characteristics of small smoke volume, large change of smoke working conditions and small diameter of the wet washing tower in a waste incineration power plant.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one of the above problems, according to one aspect of the present invention, there is provided a turbulent spray pipe for a waste incineration wet scrubbing tower, the turbulent spray pipe including a spray pipe and one or more nozzles located on the spray pipe, and the one or more nozzles being for injecting compressed air.

In one embodiment, the turbulent spray pipe is positioned between the flue inlet and the main spray layer, extends into the tower from the opening flange of the tower wall, and is vertical to the flue inlet.

In one embodiment, the insertion position of the turbulent nozzle and the direction of the one or more nozzles can be adjusted according to the smoke working condition.

In one embodiment, the arrangement of the one or more nozzles may be adjusted according to the flue gas volume and flow field distribution.

In one embodiment, an array of nozzles is disposed on the spout.

In one embodiment, two rows of nozzles are arranged on the nozzle tube, with a first angle between the two rows of nozzles.

In one embodiment, the first angle comprises 90 degrees or 180 degrees.

In one embodiment, the flow and pressure of the compressed air can be regulated by regulating valves on the main compressed air line.

In one embodiment, the angle of the emitted air stream is adjustable by rotating the nozzle.

In one embodiment, the number of the nozzles and the size of the spray pipes are determined according to the tower diameter and the smoke amount of the waste incineration wet washing tower.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail embodiments of the present invention with reference to the attached drawings. The accompanying drawings are included to provide a further understanding of the embodiments of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the invention and not to limit the invention. In the drawings, like reference numbers generally represent like parts or steps.

Fig. 1 shows an elevation view of a layout of a turbulent jet pipe for a waste incineration wet scrubbing tower according to an embodiment of the present invention;

figure 2 shows a top view of a layout of a turbulator nozzle for a waste incineration wet scrubbing tower, in accordance with an embodiment of the present invention; and

fig. 3(a) -3(c) show schematic installation orientations of a nozzle in a turbulent spray pipe for a waste incineration wet scrubbing tower according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, exemplary embodiments according to the present invention will be described in detail below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the present invention and are not intended to limit the invention to the particular embodiments described herein. Based on the embodiments of the present invention described in the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.

The terms and corresponding explanations referred to in the present invention are listed below.

And (3) refuse incineration: a mode of adopting a grate furnace or a fluidized bed and other equipment to carry out innocent treatment on the waste incineration. The flue gas generated in the incineration production process contains pollutants such as HCl, SO2 and the like, and can be discharged after reaching the standard after being treated.

Wet scrubbing tower: and the tower type equipment removes acidic substances such as HCl, SO2 and the like in the incineration tail gas by spraying alkaline solution. The incineration tail gas enters from the lower part of the wet scrubbing tower and is in countercurrent contact with a sprayed alkaline solution to generate gas-liquid reaction, and the clean flue gas for removing acidic substances such as HCl, SO2 and the like is discharged from the top of the wet scrubbing tower.

Turbulent flow spray pipe: the smoke turbulence device installed in the wet scrubbing tower consists of a spray pipe and nozzles, compressed air is sprayed out of the spray pipe through the nozzles to disturb a smoke flow field, so that the uniformity of the flow field is improved, the turbulence degree is increased, and the absorption efficiency of the wet scrubbing tower is improved.

First, a turbulent spray pipe for a refuse-incinerating wet scrubbing tower according to an embodiment of the present invention will be described with reference to fig. 1 and 2.

As shown in fig. 1 and 2, the turbulent nozzle includes a nozzle and one or more nozzles on the nozzle, and the one or more nozzles are used to inject compressed air.

In one embodiment, the turbulent spray pipe is positioned between the flue inlet and the main spray layer, extends into the tower from the opening flange of the tower wall, and is vertical to the flue inlet. The prior art can also improve the uniformity of a flow field, and mainly comprises the additional installation of a rectifying grid, a turbulent layer pipeline and the like, and has the defect of higher resistance. In this embodiment, through spraying compressed air at suitable position, collide with the flue gas, mix, can change the flue gas flow direction, improve the flue gas adherence condition to the flow field uniformity has been improved.

In one embodiment, the insertion position of the turbulent nozzle and the direction of the one or more nozzles can be adjusted according to the smoke working condition.

Reference is now made to fig. 3(a) -3(c), which illustrate schematic mounting orientations of a nozzle in a turbulent spray tube for a waste incineration wet scrubbing tower, in accordance with an embodiment of the present invention.

In one embodiment, the arrangement of the one or more nozzles may be adjusted according to the flue gas volume and flow field distribution.

Specifically, one row of nozzles (fig. 3(a)) or two rows of nozzles (fig. 3(b) and 3(c)) may be installed on the nozzle pipe, and may be designed in other forms as needed. In one embodiment, the two rows of nozzles are at a first angle therebetween. The first angle includes 90 degrees (as in fig. 3(c)) or 180 degrees (as in fig. 3 (b)). The three schemes mainly comprise that the number and the angles of the nozzles are different, a proper nozzle arrangement scheme can be selected according to different flue gas volumes and different flow field distribution conditions, and a new nozzle arrangement scheme can be designed according to specific problems. The specific arrangement scheme can be determined after flow field analysis is carried out on different flue gas working conditions (flue gas amount and bias flow conditions).

In one embodiment, the flow and pressure of the compressed air can be regulated by regulating valves on the main compressed air line. In one embodiment, the angle of the emitted air stream is adjustable by rotating the nozzle. The specific adjusting scheme can be determined after flow field analysis is carried out according to different flue gas working conditions.

In yet another embodiment, the number of nozzles and the size of the spray pipes are determined according to the tower diameter and the smoke amount of the waste incineration wet washing tower.

In the utility model, the compressed air is sprayed out from the turbulent flow spray pipe, collides with the flue gas and is mixed with the flue gas, thereby improving the condition that the flue gas flows along the lateral tower wall, improving the uniformity of the flow field and increasing the turbulence degree, thereby improving the absorption efficiency; secondly, as no flow equalizing devices such as grid plates and the like are arranged, the resistance loss is reduced to the greatest extent; and the flow and the pressure of the compressed air are adjustable, and the angle of the nozzle can be adjusted by rotating the spray pipe, so that the device can adapt to different flue gas working conditions.

According to the utility model, the utility model provides an adjustable turbulent flow spray pipe for a waste incineration wet washing tower, which comprises a spray pipe, a nozzle, an installation part, a positioning part and the like, wherein the turbulent flow spray pipe is positioned near a flue inlet and below a spraying layer, and the disturbance to flue gas is realized by spraying compressed air, so that the uniformity of a flow field is improved, and the turbulence degree is increased, thereby improving the absorption efficiency; meanwhile, the wet scrubbing tower can adapt to different flue gas working conditions by adjusting the flow rate and pressure of the compressed air and the angle of the sprayed air flow, and is convenient to debug.

The utility model provides a vortex spray tube for msw incineration wet scrubbing tower has following advantage: the turbulent flow spray pipe is suitable for a waste incineration wet washing tower, can improve the uniformity of a flow field, increases the turbulence degree, and has small resistance loss; the device has simple design and is convenient to manufacture and install; the compressed air flow and the pressure are adjustable, the nozzle angle can be adjusted by rotating the spray pipe, the adjustment is convenient, and the device can adapt to different working conditions.

Although the example embodiments have been described herein with reference to the accompanying drawings, it is to be understood that the above-described example embodiments are merely illustrative and are not intended to limit the scope of the present invention thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention. All such changes and modifications are intended to be included within the scope of the present invention as claimed in the appended claims.

In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Similarly, it should be appreciated that in the description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the method of the present invention should not be interpreted as reflecting an intention that: rather, the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.

It will be understood by those skilled in the art that all of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where such features are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.

The above description is only for the specific embodiments of the present invention or the description of the specific embodiments, the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. The protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A turbulent spray tube for a waste incineration wet scrubbing tower, the turbulent spray tube comprising a spray tube and one or more nozzles located on the spray tube, wherein the one or more nozzles are for injecting compressed air.

2. The turbulator nozzle of claim 1, wherein the turbulator nozzle is located between the flue inlet and the primary spray level, extends into the tower from the tower wall opening flange, and is perpendicular to the flue inlet.

3. The turbulator nozzle of claim 1 or 2, wherein an insertion position of the turbulator nozzle and a direction of the one or more nozzles are adjustable according to a fume condition.

4. The turbulator nozzle of claim 1 or claim 2, wherein the arrangement of the one or more nozzles is adjustable according to the flue gas volume and flow field distribution.

5. The turbulator nozzle of claim 4, wherein an array of nozzles is disposed on the nozzle.

6. The turbulator nozzle of claim 4, wherein two rows of nozzles are disposed on the nozzle, and wherein the two rows of nozzles are at a first angle therebetween.

7. The turbulator nozzle of claim 6, wherein the first angle comprises 90 degrees or 180 degrees.

8. The turbulator nozzle of claim 1, wherein the flow rate and pressure of the compressed air is adjustable by a regulating valve on a main compressed air conduit.

9. The turbulator nozzle of claim 1, wherein an angle of the ejected gas flow is adjustable by rotating the nozzle.

10. The turbulent flow nozzle of claim 1, wherein the number of nozzles and the size of the nozzle are determined according to the tower diameter and the amount of flue gas of the wet scrubbing tower for waste incineration.

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