Pre-cooling device of washing tower

Abstract

The utility model discloses a washing tower precooling device which comprises a barrel body, a water inlet groove is arranged in the barrel body, the water inlet groove is connected with a water inlet connecting pipe, and a liquid spraying opening is arranged on the water inlet groove. The pre-cooling device of the washing tower is simple in structure, is mounted at the flue inlet of the washing tower and is perpendicular to the ground, water flow can be fully contacted with flue gas for cooling, the water outlet direction of the liquid spraying port is parallel to the ground, the flue gas entering the flue of the washing tower is cooled in advance, the temperature of the glass fiber reinforced plastic flue is protected not to exceed 100 DEG C, and the service life of the glass fiber reinforced plastic flue is prolonged. The cooling effect of the pre-cooling section can be effectively improved, the strength and the service life of the glass fiber reinforced plastic are protected, and the deacidification washing efficiency of the washing tower is improved.

Description

Technical Field

[0001] This utility model relates to the field of flue gas dust removal and purification technology, and in particular to a precooling device for a scrubbing tower. Background Technology

[0002] In flue gas treatment, baghouse dust collectors are typically connected to a scrubbing tower for wet flue gas scrubbing. The outlet flue gas temperature of the dust collector is generally 180℃. If this flue gas is directly introduced into the scrubbing tower through a fiberglass duct, it will not only damage the duct or reduce its service life, but also cause a significant increase in the operating temperature inside the scrubbing tower due to the direct introduction of high-temperature flue gas. This temperature increase will affect the activity of chemical substances in the scrubbing liquid, thereby reducing the acid removal efficiency. Utility Model Content

[0003] In view of the above-mentioned shortcomings of current scrubbing towers, this utility model provides a scrubbing tower precooling device with a simple structure. It is installed at the flue inlet of the scrubbing tower and forms a uniform water film on the surface of the fiberglass flue, which protects the strength and service life of the fiberglass flue and improves the deacidification and washing efficiency of the scrubbing tower.

[0004] To achieve the above objectives, the embodiments of this utility model adopt the following technical solutions:

[0005] A precooling device for a scrubbing tower includes a cylindrical body, a water inlet tank inside the cylindrical body, a water inlet connecting pipe connected to the water inlet tank, and a spray nozzle on the water inlet tank.

[0006] According to one aspect of this utility model, the number of water inlet connecting pipes is two.

[0007] According to one aspect of this utility model, the water inlet connection pipe is arranged relatively perpendicularly or parallel to the radial direction of the cylinder.

[0008] According to one aspect of this utility model, a water flow regulating valve or a flow meter is provided on the water inlet connection pipe.

[0009] According to one aspect of the present invention, the spray nozzles are evenly distributed along the circumference of the water inlet tank.

[0010] According to one aspect of this utility model, the spray nozzle is circular.

[0011] According to one aspect of the present invention, the water inlet groove is disposed in the cylinder body.

[0012] According to one aspect of the present invention, the inner side of the cylinder is provided with a polytetrafluoroethylene liner.

[0013] According to one aspect of this utility model, an upper flange is provided at the upper end of the cylinder, and a lower flange is provided at the lower end of the cylinder.

[0014] According to one aspect of this utility model, reinforcing ribs are provided at the connection points between the upper flange and the lower flange and the cylinder.

[0015] Advantages of this invention: The pre-cooling device for the scrubbing tower includes a cylindrical body with a water inlet tank connected to an inlet pipe. A spray nozzle is installed on the water inlet tank. The pre-cooling device has a simple structure and is installed at the flue inlet of the scrubbing tower, perpendicular to the ground. This allows the water flow to fully contact and cool the flue gas. The spray nozzle's water outlet direction is parallel to the ground, pre-cooling the flue gas entering the scrubbing tower flue. Simultaneously, it ensures that the water flow evenly covers the flue inlet area, forming a uniform protective water film on the surface of the fiberglass flue. This controls the surface temperature of the fiberglass pipe to around 100 degrees Celsius, with a slightly higher temperature at the center of the flue, protecting the strength and service life of the fiberglass. Furthermore, the cooling water flows into the scrubbing tower along the flue wall, which helps improve the deacidification and washing efficiency of the scrubbing tower. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a top view of a precooling device for a washing tower according to Embodiment 1 of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of a precooling device for a washing tower according to Embodiment 2 of this utility model.

[0019] Figure 1-2 In the middle, 1. cylinder; 2. water inlet tank; 3. water inlet connecting pipe; 4. spray nozzle. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1

[0025] like Figure 1 As shown, a precooling device for a washing tower includes a cylindrical body 1, a water inlet trough 2 inside the cylindrical body 1, a water inlet connecting pipe 3 connected to the water inlet trough 2, and a spray nozzle 4 provided on the water inlet trough 2.

[0026] In practical applications, the precooling device for the scrubbing tower has a simple structure and is easy to install and maintain. During use, the precooling device is installed at the flue inlet of the scrubbing tower, perpendicular to the ground. Simultaneously, the cooling water supply device is connected to the inlet pipe 3, allowing the water flow to fully contact the flue gas for cooling. Specifically, cooling water enters the inlet tank 2 tangentially through the inlet pipe 3. The water in the inlet tank 2 is distributed throughout the entire tank under the action of tangential hydraulic swirling. Cooling water is continuously sprayed from the spray nozzle 4 in a direction parallel to the ground, ensuring that the water flow evenly covers the flue inlet area and forms a protective water film on the surface of the fiberglass flue. Simultaneously, the flue gas flows vertically within the cylinder 1 and remains within the spray range of the spray nozzle 4, thus pre-cooling the flue gas entering the scrubbing tower to its suitable operating temperature, typically around 100℃. This effectively improves the cooling effect of the pre-cooling section and prevents damage to the flue or reduction of its service life due to instantaneous flue gas temperature fluctuations. Furthermore, the cooling water from the pipes flows into the scrubbing tower along the flue wall, which helps improve the acid removal and washing efficiency of the scrubbing tower.

[0027] In practical applications, the flow rate of cooling water is precisely controlled through heat balance calculations to ensure sufficient heat exchange with the flue gas and achieve the desired cooling effect. The design of the water inlet tank 2 fully considers the influence of water flow characteristics and the shape of the spray nozzles 4 on the water flow distribution. The optimal number and distribution of the spray nozzles 4 are determined through scientific calculations. Preferably, the spray nozzles 4 are evenly distributed along the circumference of the water inlet tank 2. The shape of the spray nozzles 4 is preferably circular.

[0028] In practical applications, the number of inlet connection pipes 3 can be set to an even number, such as two. The two inlet connection pipes 3 are arranged radially parallel to each other along the cylinder 1, facilitating the simultaneous injection of cooling water into the inlet tank 2. Furthermore, this arrangement helps ensure a uniform distribution of cooling water within the inlet tank 2, avoiding excessively concentrated or sparse local water flow. The inlet connection pipes 3 are sealed to the side wall of the inlet tank 2. A flange is provided at the end of the inlet connection pipe 3 away from the inlet tank 2 for connection to an external cooling water supply device. Further, a flow regulating valve or flow meter can be installed on the inlet connection pipe 3.

[0029] In practical applications, the water inlet trough 2 is used for receiving and distributing cooling water and is arranged in a ring around the cylinder 1.

[0030] In practical applications, a polytetrafluoroethylene lining can be provided on the inner side of the cylinder 1 to effectively prevent the cylinder 1 from being corroded.

[0031] In practical applications, an upper flange is provided at the upper end of the cylinder 1, and a lower flange is provided at the lower end of the cylinder 1. Furthermore, reinforcing ribs are provided at the connection points between the upper flange and the lower flange and the cylinder 1, thereby further improving the structural strength and stability of the cylinder 1.

[0032] Example 2

[0033] like Figure 2 As shown, the difference between this embodiment and embodiment one is that in this embodiment, the water inlet connection pipe 3 is arranged relatively perpendicularly to the radial direction of the cylinder 1.

[0034] Therefore, the inlet connection pipe 3 can inject cooling water into the inlet tank 2 at different angles and directions. This arrangement helps optimize the distribution and mixing of the water flow, resulting in a more uniform and complex flow pattern within the inlet tank 2. This not only increases the coverage area of ​​the water flow, allowing more cooling water to contact the flue gas, but also enhances the turbulence and mixing effect of the water flow, thereby improving heat exchange efficiency.

[0035] Advantages of this invention: The pre-cooling device for the scrubbing tower includes a cylindrical body with a water inlet tank connected to an inlet pipe. A spray nozzle is installed on the water inlet tank. The pre-cooling device has a simple structure and is installed at the flue inlet of the scrubbing tower, perpendicular to the ground. This allows the water flow to fully contact and cool the flue gas. The spray nozzle's water outlet direction is parallel to the ground, pre-cooling the flue gas entering the scrubbing tower flue. Simultaneously, it ensures that the water flow evenly covers the flue inlet area, forming a uniform protective water film on the surface of the fiberglass flue. This controls the surface temperature of the fiberglass pipe to around 100 degrees Celsius, with a slightly higher temperature at the center of the flue, protecting the strength and service life of the fiberglass. Furthermore, the cooling water flows into the scrubbing tower along the flue wall, which helps improve the deacidification and washing efficiency of the scrubbing tower.

[0036] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A precooling device for a scrubbing tower, comprising a cylindrical body, characterized in that, The cylinder is provided with a water inlet groove, which is connected to a water inlet connecting pipe. A spray nozzle is provided on the water inlet groove. The water inlet connecting pipe is arranged relatively perpendicularly or parallel to the radial direction of the cylinder. The spray nozzles are evenly distributed around the circumference of the water inlet groove.

2. The precooling device for a washing tower according to claim 1, characterized in that, There are two water inlet connection pipes.

3. The precooling device for a washing tower according to claim 1, characterized in that, A flow regulating valve or flow meter is installed on the water inlet connection pipe.

4. A precooling device for a washing tower according to claim 1, characterized in that, The spray nozzle is circular.

5. A precooling device for a washing tower according to claim 1, characterized in that, The water inlet groove is located inside the cylinder.

6. A precooling device for a washing tower according to claim 5, characterized in that, The inner side of the cylinder is lined with polytetrafluoroethylene.

7. A precooling device for a washing tower according to claim 1, characterized in that, The upper end of the cylinder is provided with an upper flange, and the lower end of the cylinder is provided with a lower flange.

8. A precooling device for a washing tower according to claim 7, characterized in that, Reinforcing ribs are provided at the connection points between the upper and lower flanges and the cylinder.

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