A unit exhaust gas aftertreatment sedimentation separation device

Abstract

The utility model relates to exhaust gas precipitation separation device technical field especially, more particularly to a kind of unit exhaust gas post-treatment precipitation separation device, including spray tower, the spray tower includes tower body, the water tank is connected in the right side of tower body bottom end, the tank cover is installed at the water tank top end, the pipe group is installed in the left side of tower body, the pipe group includes the air inlet pipe fixed on the surface of tower body, air hole is opened around the surface of air inlet pipe end, the spray part is hung and installed in the inside wall of tower body.In the utility model, gas is directly discharged into water flow in the inside of tower body through air inlet pipe, particulate matter is guided by several baffles after being washed by water flow, so that particulate pollutant is conveniently deposited and accumulated, with the scouring of gas, the baffle can intercept gas, then prevent gas from directly colliding with the particulate pollutant deposited, reduce the probability of particulate pollutant floating, and further reduce the probability of pipe group blockage.

Description

Technical Field

[0001] This utility model relates to the technical field of waste gas sedimentation and separation devices, and in particular to a waste gas post-treatment sedimentation and separation device for power units. Background Technology

[0002] With the development of industry and transportation, various mechanical equipment (such as diesel engines and gas turbines) generate a large amount of exhaust gas during operation. This exhaust gas contains a variety of harmful substances, such as particulate matter, nitrogen oxides, sulfur oxides, and hydrocarbons, posing a serious threat to the environment and human health. Therefore, effective after-treatment and purification of the exhaust gas from these units is of paramount importance.

[0003] Traditional waste gas treatment methods mainly include catalytic conversion, wet desulfurization, electrostatic precipitator, and sedimentation separation. Among these, sedimentation separation devices can simultaneously remove multiple pollutants, including particulate matter, gaseous pollutants, and heavy metals. Compared to traditional catalytic conversion and wet desulfurization methods, sedimentation separation technology has lower energy consumption and is therefore widely used. However, sedimentation separation devices still have some problems when treating unit waste gas, such as easy clogging. Traditional sedimentation methods involve inserting a gas pipe directly into the water tank, with a vent at the end of the pipe. When pollutants accumulate, the impact of the gas during its introduction can cause particulate matter to rise to the surface, leading to clogging of the vent. Therefore, a sedimentation separation device for post-treatment of unit waste gas is needed to solve these problems. Utility Model Content

[0004] The purpose of this invention is to solve the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A settling and separation device for post-treatment of exhaust gas from a generator unit includes a spray tower. The spray tower includes a tower body, a water tank connected to the bottom right side of the tower body, a tank cover installed on the top of the water tank, a pipe assembly installed on the left side of the tower body, the pipe assembly including an air inlet pipe fixed to the surface of the tower body, air holes being opened around the end surface of the air inlet pipe, and a spray section installed on the inner wall of the tower body.

[0006] Preferably, a cover plate is connected to the end surface of the vertical pipe of the air intake pipe. The outer side of the cover plate is designed as a frustum. When the gas is ejected from the end of the air intake pipe, it can be intercepted to a certain extent by the cover plate to prevent the gas from floating directly upward after being ejected from the air intake pipe.

[0007] Preferably, baffles are installed on the inner wall of the tower body with the left and right sides offset, and the end of the vertical pipe of the air inlet is located between the two baffles. The baffles intercept the airflow, which can prevent the gas from impacting and floating the pollutants deposited in the tower body. At the same time, the baffles can also guide the pollutant particles.

[0008] Preferably, the left side of the air intake pipe is connected to a gas collecting pipe, and the right side of the gas collecting pipe has a reduced diameter and is connected and fixed to the left side of the air intake pipe. The cross-sectional area between the gas collecting pipe and the air intake pipe is reduced, and the gas flow rate will increase accordingly. The airflow speed is accelerated, which can further reduce the probability of hole blockage.

[0009] Preferably, a filter plate is installed at the center of the bottom of the inner wall of the water tank. The upper part of the filter plate has filter holes at equal intervals. The filter plate separates the tower body and the water tank, thereby reducing the probability of pollutants clogging the water inlet pipe.

[0010] Preferably, the spray unit includes a water pump, the water pump inlet end is connected to an inlet pipe, and the end of the inlet pipe is connected and penetrates the front of the water tank. The water pump outlet end is connected to an outlet pipe, and several branch pipes are provided inside the outlet pipe. The end of the branch pipe passes through the tower body and is connected to a spray pipe. The water flows out through the nozzle end inside the spray pipe, thereby the water flow performs a secondary flushing of the gas, making it convenient for any missed pollutants to fall back down after getting damp.

[0011] Preferably, the spray pipe has a ring structure, and the nozzle end of the spray pipe is arranged around the inner side of the ring end of the spray pipe. The nozzle end of the spray pipe is inclined downward. The inclined downward arrangement of the nozzle end of the spray pipe can improve the cross-spraying effect of the water flow and ensure the spraying effect.

[0012] This utility model has at least the following beneficial effects: 1. Gas is discharged directly into the water flow inside the tower through the inlet pipe. After being washed by the water flow, the particulate matter is guided by several baffles, which facilitates the sedimentation and accumulation of particulate pollutants. With the flushing of gas, the baffles can intercept the gas, thereby preventing the gas from directly hitting the sedimented particulate pollutants, reducing the probability of particulate pollutants floating to the surface, and thus reducing the probability of pipe blockage.

[0013] 2. By setting up a cover and baffles, the gas can be dispersed and expanded in all directions. The gas is ejected through the air inlet pipe and directly hits the surface of the baffle. The gas can diffuse rapidly in the water, extending the washing area and distance, and improving the separation efficiency. At the same time, the cover at the end of the air inlet pipe can reduce the rate of vertical gas rise and improve the sedimentation and separation effect. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the external structure of a unit exhaust gas after-treatment sedimentation and separation device proposed in this utility model; Figure 2 This is a schematic diagram of the internal disassembly structure of a sedimentation and separation device for post-treatment of exhaust gas from a power plant, as proposed in this utility model. Figure 3 This is a three-dimensional bottom view of the pipe assembly in the sedimentation and separation device for post-treatment of exhaust gas of a unit proposed in this utility model; Figure 4 This is a three-dimensional structural diagram of the spray section in a sedimentation and separation device for post-treatment of exhaust gas from a generator unit, as proposed in this utility model.

[0016] In the diagram: 1. Spray tower; 11. Tower body; 12. Water tank; 13. Filter plate; 14. Baffle; 15. Tank cover; 2. Pipe assembly; 21. Air inlet pipe; 22. Air collection pipe; 23. Cover plate; 3. Spray section; 31. Water pump; 32. Water inlet pipe; 33. Water outlet pipe; 34. Diversion pipe; 35. Spray pipe. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] Reference Figure 1-4 A settling and separation device for post-treatment of exhaust gas from a generator unit includes a spray tower 1, which includes a tower body 11. A water tank 12 is connected to the right side of the bottom of the tower body 11, and a tank cover 15 is installed on the top of the water tank 12. A pipe assembly 2 is installed on the left side of the tower body 11. The pipe assembly 2 includes an air inlet pipe 21 fixed to the surface of the tower body 11. Air holes are opened around the end surface of the air inlet pipe 21. A spray section 3 is installed on the inner wall of the tower body 11.

[0019] The surface of the vertical end of the intake pipe 21 is connected to a cover plate 23, and the outer side of the cover plate 23 is designed as a frustum.

[0020] The inner wall of the tower body 11 is fitted with baffles 14 that are offset to the left and right, and the end of the vertical pipe of the air inlet pipe 21 is located between the two baffles 14.

[0021] The left side of the intake pipe 21 is connected to the air collecting pipe 22, and the right side of the air collecting pipe 22 has a reduced diameter and is connected and fixed to the left side of the intake pipe 21.

[0022] A filter plate 13 is installed at the center of the bottom of the inner wall of the water tank 12, and filter holes are equidistantly opened on the upper section of the filter plate 13.

[0023] The spray unit 3 includes a water pump 31. The water pump 31 is connected to an inlet pipe 32 at its inlet end, and the end of the inlet pipe 32 is connected to the front of the water tank 12. The water pump 31 is connected to an outlet pipe 33 at its outlet end, and several branch pipes 34 are provided inside the outlet pipe 33. The end of the branch pipe 34 passes through the tower body 11 and is connected to a spray pipe 35.

[0024] The spray pipe 35 has a ring structure, and the nozzle end of the spray pipe 35 is arranged around the inner side of the ring end of the spray pipe 35, with the nozzle end of the spray pipe 35 inclined downward.

[0025] When the gas is ejected from the end of the inlet pipe 21, it can be intercepted to a certain extent by the cover plate 23 to prevent the gas from floating directly upward after being ejected from the inlet pipe 21. The airflow is intercepted by the baffle 14 to prevent the gas from impacting and floating the pollutants settled in the tower body 11. At the same time, the baffle 14 can also guide the pollutant particles so that they can be guided to settle at the bottom of the inner wall of the tower body 11. In addition, the design of several baffles 14 can extend the gas floating path and improve the separation effect of pollutants to a certain extent.

[0026] When gas flows in the gas collecting pipe 22, the cross-sectional area between the gas collecting pipe 22 and the inlet pipe 21 decreases, and the gas velocity increases accordingly. The faster airflow velocity can further reduce the probability of hole blockage. The volume of gas passing through a certain cross-section of the pipe per unit time is constant under certain conditions. Therefore, when the cross-sectional area decreases, the gas velocity must increase in order to maintain the same flow rate. The filter plate 13 separates the tower body 11 and the water tank 12, thereby reducing the probability of pollutants blocking the water inlet pipe 32. The filter hole design of the upper section of the filter plate 13 can facilitate the water flow into the interior of the water tank 12 and intercept pollutants to a certain extent.

[0027] Water pump 31 draws water into the spray pipe 35 via the outlet pipe 33 and the branch pipe 34. The water is then sprayed out through the nozzles on the inner side of the spray pipe 35, providing a secondary flushing effect on the gas. This allows any remaining pollutants to settle again after absorbing moisture, thus improving the sedimentation effect of pollutants in the exhaust gas. The downward-sloping nozzles of the spray pipe 35 enhance the cross-spraying effect of the water flow, ensuring effective sweeping and expanding the spray area for the gas. The main working component of the water pump 31 is the blade. The impeller, pump casing, and bearings are all part of the pump system. When the motor of water pump 31 starts, the impeller begins to rotate, drawing liquid into the pump casing. The rotation of the impeller gives the liquid energy, causing it to rush towards the casing at a certain speed and pressure. The liquid then flows into the outlet pipe of water pump 31 through the flow channel in the casing. At the same time, a vacuum is formed in the center of the impeller. Water from the suction pipe flows into the center of the impeller under atmospheric pressure to fill this vacuum area. Thus, as long as the suction pipe can maintain a water supply and the impeller continues to rotate, the continuous water delivery process of the water pump is completed.

[0028] Working principle: According to the appendix Figure 2 With appendix Figure 3 As shown, during use, gas enters through the gas collecting pipe 22 and then passes through the gas inlet pipe 21 directly into the tower body 11. The gas directly impacts the cleaning water in the tower body 11. After entering the tower body 11, the liquid components in the exhaust gas, such as condensate and oil mist, separate from the gaseous components by gravity. Due to their higher density, the liquid components gradually settle to the bottom of the device, while the solid particles in the exhaust gas, such as dust and ash, also gradually settle to the bottom of the device under gravity. After gas-liquid separation and particle settling, the relatively pure gas is discharged from the top of the tower body 11, and the solid particles are guided by the baffle 14 to deposit at the bottom of the tower body 11. Secondly, according to the appendix Figure 2 With appendix Figure 4 As shown, after being cleaned, the gas rises to the surface and is started by the water pump 31. The water pump 31 draws water from the water tank 12 through the water inlet pipe 32, causing the water to rise through the water outlet pipe 33. The water is then diverted through the diversion pipe 34 and enters the spray pipe 35. The spray pipe 35 washes away the residue in the gas, allowing the residue to fall back into the water flow at the bottom of the tower body 11 for a new sedimentation process.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A unit exhaust gas aftertreatment precipitation separation device, comprising a spray tower (1), the spray tower (1) comprises a tower body (11), the right side of the bottom end of the tower body (11) is connected with a water tank (12), the top end of the water tank (12) is provided with a tank cover (15), characterized in that, A pipe assembly (2) is installed on the left side of the tower body (11). The pipe assembly (2) includes an air inlet pipe (21) fixed on the surface of the tower body (11). The end surface of the air inlet pipe (21) is surrounded by air holes. A spray unit (3) is installed on the inner wall of the tower body (11). The vertical end surface of the air intake pipe (21) is connected to a cover plate (23), and the outer side of the cover plate (23) is designed as a frustum structure. The tower body (11) has baffles (14) installed on the inner wall of the tower body (11) in a staggered manner, and the end of the vertical pipe of the air inlet pipe (21) is located between the two baffles (14); The air intake pipe (21) is connected to the air collection pipe (22) on the left side, and the air collection pipe (22) has a reduced diameter on the right side and is connected and fixed to the left side of the air intake pipe (21).

2. A device for the separation of precipitates from the exhaust gases of a power unit according to claim 1, characterised in that A filter plate (13) is installed at the center of the bottom of the inner wall of the water tank (12), and filter holes are equidistantly opened on the upper section of the filter plate (13).

3. A device for separating and precipitating exhaust gas aftertreatment of a unit according to claim 1, characterized in that, The spray section (3) includes a water pump (31), the water pump (31) is connected to a water inlet pipe (32) at the water inlet end, and the end of the water inlet pipe (32) is connected to the front of the water tank (12). The water pump (31) is connected to a water outlet pipe (33) at the water outlet end, and a number of branch pipes (34) are provided inside the water outlet pipe (33). The end of the branch pipe (34) passes through the tower body (11) and is connected to a spray pipe (35).

4. A device for the separation of precipitates from the exhaust gases of a power unit according to claim 3, characterised in that The spray pipe (35) has an annular structure, and the nozzle end of the spray pipe (35) is arranged around the inner side of the annular end of the spray pipe (35). The nozzle end of the spray pipe (35) is inclined downward.

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