Condensate water collecting device for direct discharge chimney at top of wet desulfurization tower

Abstract

The utility model provides a wet desulfurization tower top direct-discharge chimney condensate water collecting device, which belongs to the technical field of industrial flue gas pollutant treatment, and comprises a direct-discharge chimney arranged at the top of a desulfurization tower and a rotational flow component arranged at the bottom of an inner cavity of the direct-discharge chimney. The smoke inlet is used for realizing rotary rising of smoke; the gas-liquid separation mechanism is arranged at a lower air port of flue gas conveyed by the rotational flow assembly and comprises a flow guide part arranged on the side wall of the direct discharge chimney and a collection part arranged on the outer side of the flow guide part in a covering manner; the flue gas path is changed when the flue gas passes through the rotational flow assembly, so that the flue gas is changed from vertical rising to rotary rising, the condensation effect of the flue gas is improved, the flue gas passes through the flow guide part when passing through the gas-liquid separation mechanism, condensate water can flow out of the flow guide part, enters the collecting part and flows back into the desulfurization tower, and the desulfurization efficiency is improved. Condensate water is prevented from being taken out from a chimney opening along with smoke, and environmental pollution is avoided.

Description

Technical Field

[0001] This utility model relates to the field of industrial flue gas pollutant treatment technology, specifically to a wet desulfurization tower top direct discharge chimney condensate collection device. Background Technology

[0002] After the flue gas from cement kilns is treated by a wet desulfurization system, most of the sulfur dioxide pollutants are absorbed by the desulfurization slurry, and some droplets are collected by the demister in the desulfurization tower. However, the flue gas after wet desulfurization is already saturated with moisture, and a small amount of droplets and condensate will be discharged from the chimney with the flue gas. The entrained droplets evaporate and diffuse in the high atmosphere, releasing particulate matter, causing particulate matter emissions to exceed standards and causing environmental pollution. It is evident that existing wet desulfurization systems for flue gas treatment have the following significant drawbacks: 1. Wet desulfurizers cannot effectively collect condensate. After the flue gas passes through the demister, due to the high water content, the flue gas temperature naturally cools down after passing through the chimney wall, causing condensate to precipitate. Conventional equipment is ineffective at collecting this condensate; 2. Excessive condensate in the chimney may cause excessive errors in the measurement data of flue gas monitoring equipment, leading to inaccurate data monitoring. Utility Model Content

[0003] This utility model provides a condensate collection device for direct-discharge chimney at the top of a wet desulfurization tower. When the flue gas passes through the gas-liquid separation mechanism, it passes through the guide section, allowing the condensate to flow out from the guide section, enter the collection section, and flow back into the desulfurization tower, thus preventing the condensate from being carried out of the chimney with the flue gas and causing environmental pollution.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A condensate collection device for a direct-emission chimney at the top of a wet desulfurization tower includes a direct-emission chimney installed at the top of the desulfurization tower, and further includes:

[0006] A swirl assembly, disposed at the bottom of the inner cavity of a straight-exhaust chimney, is used to achieve swirling and upward rotation of flue gas; and

[0007] A gas-liquid separation mechanism is provided at the downwind outlet of the flue gas conveyed by the cyclone assembly. The gas-liquid separation mechanism includes a guide section opened on the side wall of the straight chimney and a collection section covered outside the guide section.

[0008] Preferably, the gas-liquid separation mechanism comprises multiple units distributed axially along the outer side of the straight-exhaust chimney.

[0009] Preferably, the flow guide is a plurality of grooves evenly distributed along the outer wall of the straight chimney along the axial direction, and the plurality of grooves are arranged circumferentially along the outer wall of the straight chimney.

[0010] Preferably, the collecting part is a cylinder sleeved on the side wall of the straight chimney and corresponding to the position of the guide part.

[0011] Preferably, the bottom of the collection section is provided with a drain pipe.

[0012] Preferably, the end of the drain pipe furthest from the collection section is connected to the desulfurization tower.

[0013] Preferably, a connecting rod is provided between the outer wall of the straight chimney and the bottom of the collection section.

[0014] Preferably, the connecting rods are evenly distributed circumferentially along the outer wall of the straight-exhaust chimney.

[0015] Preferably, a flue gas test hole is provided on the side wall of the straight-exhaust chimney near the collection section.

[0016] Preferably, the swirl assembly is a swirl blade.

[0017] As can be seen from the above technical solution, this utility model has the following beneficial effects:

[0018] 1. In this utility model, flue gas enters the direct-exhaust chimney along the top of the desulfurization tower. When passing through the swirl assembly, the flue gas path is changed, so that the flue gas changes from vertical upward to swirling upward. This reduces the vertical upward speed of the flue gas and increases the residence time of the flue gas in the direct-exhaust chimney, thereby increasing the condensation effect of the flue gas. When the flue gas passes through the gas-liquid separation mechanism, it passes through the guide section, so that the condensate can flow out from the guide section, enter the collection section, and flow back to the desulfurization tower, avoiding the condensate from being carried out of the chimney with the flue gas and causing environmental pollution.

[0019] 2. In this utility model, the swirl component is specifically a swirl blade. This swirl blade can change the path of the flue gas, so that the flue gas changes from vertical upward to swirling upward, thereby increasing the condensation effect of the flue gas and further reducing the moisture in the flue gas. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 for Figure 1 A partial schematic diagram of the cyclone assembly and gas-liquid separation mechanism;

[0022] Figure 3 This is a three-dimensional schematic diagram of the swirl assembly.

[0023] In the diagram: 10, desulfurization tower; 20, direct exhaust chimney; 310, swirl vane; 410, guide section; 420, collection section; 430, drain pipe; 440, connecting rod; 450, flue gas test hole. Detailed Implementation

[0024] A preferred embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

[0025] To achieve the above objectives, the embodiments of this utility model adopt the following technical solutions: (Refer to...) Figure 1 A wet desulfurization tower top direct-emission chimney condensate collection device includes a desulfurization tower 10, a direct-emission chimney 20, a cyclone assembly, and a gas-liquid separation mechanism. The direct-emission chimney 20 is located at the top of the desulfurization tower 10. Further, the cyclone assembly is located at the bottom of the inner cavity of the direct-emission chimney 20, used to change the movement mode of the flue gas as it flows along the chimney, specifically changing it from vertical upward movement to rotational upward movement. The gas-liquid separation mechanism is located at the downwind end of the flue gas conveyed by the cyclone assembly. Specifically, the gas-liquid separation mechanism includes a guide section 410 and a collection section 420. The guide section 410 is located at the bottom of the direct-emission chimney 20. The side wall of the chimney 20 has a collection section 420 covering the outside of the guide section. In use, the flue gas enters the straight chimney along the top of the desulfurization tower. When passing through the swirl assembly, the flue gas path is changed, so that the flue gas changes from vertical rise to swirling rise. This reduces the vertical rise speed of the flue gas and increases the residence time of the flue gas in the straight chimney, thereby increasing the condensation effect of the flue gas. When the flue gas passes through the gas-liquid separation mechanism and the guide section, the condensate can flow out from the guide section, enter the collection section, and finally flow back to the desulfurization tower, avoiding the condensate from being carried out of the chimney with the flue gas and causing environmental pollution.

[0026] Reference Figure 3 It should be noted that the swirl assembly is a swirl blade 310, which can rotate under the drive of a motor, thereby changing the movement mode of the flue gas, so that the flue gas changes from vertical upward to rotational upward when passing through the swirl blade.

[0027] Reference Figure 1 As a preferred technical solution in this embodiment, the gas-liquid separation mechanism consists of multiple gas-liquid separation mechanisms distributed axially along the outer side of the straight chimney 20. It should be noted that the multiple gas-liquid separation mechanisms can be distributed at equal intervals along the axial outer wall of the straight chimney or at non-equal intervals. Specifically, in this embodiment, the multiple gas-liquid separation mechanisms are distributed at equal intervals along the outer wall of the straight chimney, thereby further improving the gas-liquid separation effect and preventing condensate from being discharged with the flue gas.

[0028] Furthermore, the guide section 410 consists of multiple troughs evenly distributed along the outer wall of the straight chimney 20. The multiple troughs are arranged circumferentially along the outer wall of the straight chimney 20, so that the rotating and rising flue gas can enter the collection section when passing through the trough.

[0029] Reference Figure 1 , Figure 2In some embodiments, the collecting part 420 is a cylindrical structure, and the collecting part 420 is fixedly disposed on the side wall of the straight chimney 20 and corresponds to the position of the guide part 410.

[0030] Furthermore, in order to facilitate the discharge of condensate entering the collection section 420, a drain pipe 430 is provided at the bottom of the collection section 420, and the end of the drain pipe 430 away from the collection section 420 is connected to the desulfurization tower 10, so that the collected condensate can flow back into the desulfurization tower through the drain pipe.

[0031] Furthermore, in order to facilitate fixing the collection part 420 to the outside of the straight chimney 20, a connecting rod 440 is provided between the outer wall of the straight chimney 20 and the bottom of the collection part 420. At the same time, the connecting rod 440 is evenly distributed along the circumference of the outer wall of the straight chimney 20. In this way, the collection part 420 can be stably fixed to the outside of the straight chimney 20 by the evenly distributed connecting rod 440.

[0032] In some embodiments, a flue gas test hole 450 is provided on the side wall of the straight chimney 20 near the collection section 420, which can be used to detect the condensate content in the flue gas.

[0033] In operation, flue gas enters the direct-discharge chimney 20 from the top of the desulfurization tower 10. When passing through the swirl assembly, the flue gas path is changed, so that the flue gas changes from vertical rise to swirling rise. This reduces the vertical rise speed of the flue gas and increases the residence time of the flue gas in the direct-discharge chimney, thereby increasing the condensation effect of the flue gas. When the flue gas passes through the gas-liquid separation mechanism, it passes through the guide section 410, so that the condensate can flow out from the guide section 410, enter the collection section 420, and flow back to the desulfurization tower 10, avoiding the condensate from being carried out of the chimney with the flue gas and causing environmental pollution.

[0034] The above-described embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A condensate collection device for a direct-discharge chimney at the top of a wet desulfurization tower, comprising a direct-discharge chimney (20) installed at the top of a desulfurization tower (10), characterized in that, Also includes: A swirl assembly is disposed at the bottom of the inner cavity of the straight chimney (20) to achieve the upward rotation of flue gas; as well as A gas-liquid separation mechanism is provided at the downwind port of the flue gas conveyed by the cyclone assembly. The gas-liquid separation mechanism includes a guide section (410) opened on the side wall of the straight chimney (20) and a collection section (420) covered on the outside of the guide section.

2. The wet desulfurization tower top direct discharge chimney condensate collection device according to claim 1, characterized in that, The gas-liquid separation mechanism consists of multiple units distributed axially along the outer side of the straight chimney (20).

3. The wet desulfurization tower top direct discharge chimney condensate collection device according to claim 1, characterized in that, The guide section (410) consists of multiple channels evenly distributed along the outer wall of the straight chimney (20) along the axial direction, and the multiple channels are arranged circumferentially along the outer wall of the straight chimney (20).

4. The wet desulfurization tower top direct discharge chimney condensate collection device according to claim 3, characterized in that, The collecting part (420) is a cylinder sleeved on the side wall of the straight chimney (20) and corresponding to the position of the guide part (410).

5. The wet desulfurization tower top direct discharge chimney condensate collection device according to claim 4, characterized in that, The bottom of the collection section (420) is provided with a drain pipe (430).

6. The wet desulfurization tower top direct discharge chimney condensate collection device according to claim 5, characterized in that, The end of the drain pipe (430) away from the collection section (420) is connected to the desulfurization tower (10).

7. The wet desulfurization tower top direct discharge chimney condensate collection device according to claim 1, characterized in that, A connecting rod (440) is provided between the outer wall of the straight chimney (20) and the bottom of the collection section (420).

8. The wet desulfurization tower top direct discharge chimney condensate collection device according to claim 7, characterized in that, The connecting rods (440) are evenly distributed circumferentially along the outer side wall of the straight chimney (20).

9. The wet desulfurization tower top direct discharge chimney condensate collection device according to claim 1, characterized in that, A flue gas test hole (450) is provided on the side wall of the straight chimney (20) near the collection part (420).

10. The wet desulfurization tower top direct discharge chimney condensate collection device according to claim 1, characterized in that, The swirl assembly is a swirl blade (310).

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