White smoke eliminating and water saving device

Abstract

The utility model relates to the technical field of flue gas white smoke eliminating and water saving devices, in particular to a flue gas white smoke eliminating and water saving device which comprises a cooling tower and a chimney part, the chimney part is fixedly arranged at the upper end of the cooling tower, a cooling mechanism is arranged inside the cooling tower, a filtering mechanism is arranged outside the cooling tower, and the cooling mechanism comprises a gas inlet seat. The air inlet seat is fixedly connected to the outer wall of the cooling tower, an air inlet pipe is mounted in the air inlet seat, the air inlet seat is communicated with the mixing disc, the mixing disc is fixedly arranged on the inner wall of the cooling tower, the mixing disc is hollow, and a through hole is formed in the mixing disc. According to the flue gas white smoke eliminating and water saving device, the hot water gas can be cooled before being discharged out of the chimney part, so that the dew point temperature of the flue gas is not higher than the ambient air temperature when the hot water gas is discharged out of the chimney part, the phenomena of white smoke and trailing are avoided, heat carried in the high-temperature flue gas can be reutilized, and the energy consumption is reduced. The practicability of the device is improved, and resources are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas whitening and water-saving devices, in particular to a flue gas whitening and water-saving device. Background Art

[0002] Coal-fired power plants typically use wet flue gas desulfurization technology to remove SO2 from flue gas. Flue gas exiting the desulfurization tower using wet flue gas desulfurization is saturated with water vapor. This vapor, upon encountering cold air, condenses into mist, where it cools further and forms white smoke. The white smoke from the exhaust gas is primarily caused by the water vapor in the flue gas condensing into small droplets upon cooling. As these droplets aggregate and grow, the gas gradually transforms from mist to white smoke.

[0003] The existing flue gas whitening and water-saving device is usually installed at the top of the cooling tower chimney, which makes it inconvenient to install and maintain the flue gas whitening and water-saving device. In addition, the existing flue gas whitening and water-saving device only cools the high-temperature flue gas, resulting in waste of heat carried in the high-temperature flue gas, reducing the practicality of the device. Therefore, it is urgent to design a flue gas whitening and water-saving device to solve the above problems. Utility Model Content

[0004] The purpose of the present utility model is to provide a flue gas whitening and water-saving device to solve the problem proposed in the above background technology that the existing flue gas whitening and water-saving device is usually installed at the top of the chimney of the cooling tower, which makes the flue gas whitening and water-saving device inconvenient to install and maintain, and the existing flue gas whitening and water-saving device only cools down the high-temperature flue gas, resulting in waste of heat carried in the high-temperature flue gas, thereby reducing the practicality of the device.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a flue gas whitening and water-saving device, comprising: a cooling tower and a chimney part, the chimney part is fixedly provided at the upper end of the cooling tower, a cooling mechanism is provided inside the cooling tower, a filtering mechanism is provided outside the cooling tower, the cooling mechanism comprises an air intake seat, the air intake seat is fixedly connected to the outer wall of the cooling tower, an air intake pipe is installed inside the air intake seat, the air intake seat is connected to a mixing disk, the mixing disk is fixedly provided on the inner wall of the cooling tower, the mixing disk is hollow, and a through hole is opened inside the mixing disk.

[0006] Preferably, a water inlet pipe is inserted into the cooling tower, one end of the water inlet pipe is connected to a heat exchange pipe, and the other end of the heat exchange pipe is connected to a water outlet pipe.

[0007] Preferably, the heat exchange tube is arranged in a spiral shape and is arranged above the mixing disk.

[0008] Preferably, the filtering mechanism includes a filter plate, which is installed inside the air intake seat, and the diameter of the filter plate is the same as the diameter of the air intake pipe.

[0009] Preferably, a mounting groove is provided inside the filter plate, and the mounting groove is provided inside the air inlet seat, and a mounting bolt is installed inside the mounting groove.

[0010] Preferably, the outer wall of the air intake pipe is provided with an external thread, the inner wall of the air intake seat is provided with an internal thread, and the air intake pipe is connected to the inside of the air intake seat through threads.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The flue gas whitening and water-saving device is provided with a cooling mechanism. When the flue gas whitening and water-saving device is used, hot water vapor rises from the bottom of the cooling tower. When the hot water vapor passes through the mixing plate, an external fan is used to supply air so that it enters from the air inlet pipe and is sent into the hollow structure inside the mixing plate through the air inlet seat, so that the hot water vapor is mixed with the supplied air and the hot water vapor is cooled by blowing, which can effectively reduce the heat carried by the hot water vapor. When the flue gas is ejected from the chimney, the dew point temperature will not be higher than the ambient air temperature, and the water vapor in the flue gas will condense to form small droplets, which will not cause white smoke and tailing of water vapor at the chimney outlet. The hot water vapor continues to rise. When it passes through the heat exchange tube, cold water is introduced from the water inlet pipe to enter the inside of the heat exchange tube, and the cold water is circulated and discharged from the water outlet pipe. At this time, the hot air can be exchanged with the heat exchange tube, further absorbing the heat carried by the hot air to reduce its temperature. When it is ejected from the chimney, the dew point temperature of the flue gas will not be higher than the ambient air temperature. Through this design, the flue gas whitening and water-saving device can cool the hot water vapor before it is discharged from the chimney, so that the dew point temperature of the flue gas will not be higher than the ambient air temperature when it is discharged from the chimney, and there will be no white smoke and tailing phenomenon. In addition, the heat carried in the high-temperature flue gas can be reused, which improves the practicality of the device and saves resources.

[0013] 2. The flue gas whitening and water-saving device is provided with a filtering mechanism. When using the flue gas whitening and water-saving device, the outside air introduced from the air inlet pipe can be filtered by the filter plate installed inside the air inlet seat when passing through the air inlet seat, so as to avoid the air entering the mixing plate carrying impurities and affecting the cooling of the hot air. The filter plate is installed inside the air inlet seat by means of mounting grooves and mounting bolts. The installation is simple and the disassembly and assembly are convenient. Through this design, the flue gas whitening and water-saving device can cool the hot air by means of air supply while cooling the incoming cold air, so as to avoid the impurities carried in the incoming air affecting the cooling effect, thereby improving the practicability and protection of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic front view of the three-dimensional structure of the utility model;

[0015] Figure 2This is an enlarged schematic diagram of the three-dimensional structure of the mixing disk and through holes of the utility model;

[0016] Figure 3 This is an exploded schematic diagram of the overall structure of the cooling mechanism of the utility model;

[0017] Figure 4 It is an enlarged schematic diagram of the overall structure of the filtering mechanism of the present invention.

[0018] In the figure: 111, cooling tower; 112, chimney; 2, cooling mechanism; 211, air inlet seat; 212, air inlet pipe; 213, mixing plate; 214, through hole; 215, water inlet pipe; 216, heat exchange pipe; 217, water outlet pipe; 3, filtering mechanism; 311, filter plate; 312, mounting groove; 313, mounting bolt; 314, external thread; 315, internal thread. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-4 , an embodiment provided by the utility model:

[0021] A flue gas whitening and water-saving device comprises: a cooling tower 111 and a chimney portion 112, the chimney portion 112 is fixedly provided at the upper end of the cooling tower 111, a cooling mechanism 2 is provided inside the cooling tower 111, a filtering mechanism 3 is provided outside the cooling tower 111, the cooling mechanism 2 comprises an air intake seat 211, the air intake seat 211 is fixedly connected to the outer wall of the cooling tower 111, an air intake pipe 212 is installed inside the air intake seat 211, the air intake seat 211 is communicated with a mixing disk 213, the mixing disk 213 is fixedly provided on the inner wall of the cooling tower 111, the mixing disk 213 is hollow, and a through hole 214 is provided inside the mixing disk 213. With this design, When using the flue gas whitening and water-saving device, hot water vapor rises upward from the bottom of the cooling tower 111. When the hot water vapor passes through the mixing plate 213, an external fan is used to supply air so that it enters from the air inlet pipe 212. The air is sent into the hollow structure inside the mixing plate 213 through the air inlet seat 211, so that the hot water vapor is mixed with the supplied air and the hot water vapor is blown to cool it down, which can effectively reduce the heat carried by the hot water vapor. When it is ejected from the chimney part 112, the dew point temperature of the flue gas will not be higher than the ambient air temperature, and the water vapor in the flue gas will condense to form small droplets, which will not cause white smoke and tailing of water vapor at the chimney outlet.

[0022] Furthermore, an inlet pipe 215 is inserted into the cooling tower 111, one end of the inlet pipe 215 is connected to a heat exchange pipe 216, and the other end of the heat exchange pipe 216 is connected to a water outlet pipe 217. Through this design, the hot water vapor continues to rise, and when it passes through the heat exchange pipe 216, cold water is introduced from the inlet pipe 215 to allow it to enter the interior of the heat exchange pipe 216. The cold water is then circulated and discharged through the outlet pipe 217. At this time, the hot air can be heat exchanged by the heat exchange pipe 216, further absorbing the heat carried by the hot air to reduce its temperature. When the flue gas is ejected from the chimney 112, the dew point temperature will not be higher than the ambient air temperature.

[0023] Furthermore, the heat exchange tube 216 is arranged in a spiral shape, and the heat exchange tube 216 is arranged above the mixing disk 213. Through this design, the heat exchange tube 216 is arranged in a spiral shape, the cold water has a larger area inside the heat exchange tube 216, and the heat exchange effect is better.

[0024] Furthermore, the filtering mechanism 3 includes a filter plate 311, which is installed inside the air intake seat 211. The diameter of the filter plate 311 is the same as the diameter of the air intake pipe 212. Through this design, the flue gas whitening and water-saving device is used, and the outside air entering from the air intake pipe 212 can be filtered by the filter plate 311 installed inside the air intake seat 211 when passing through the air intake seat 211, thereby preventing the air entering the mixing disk 213 from carrying impurities and affecting the cooling of the hot air.

[0025] Furthermore, a mounting groove 312 is provided inside the filter plate 311, and the mounting groove 312 is provided inside the air intake seat 211, and a mounting bolt 313 is installed inside the mounting groove 312. Through this design, the filter plate 311 is installed inside the air intake seat 211 using the mounting groove 312 and the mounting bolt 313, which is simple to install and easy to assemble and disassemble.

[0026] Furthermore, an external thread 314 is provided on the outer wall of the air intake pipe 212, and an internal thread 315 is provided on the inner wall of the air intake seat 211. The air intake pipe 212 is threadedly connected to the inside of the air intake seat 211. Through this design, the air intake pipe 212 is threadedly connected to the internal thread 315 provided inside the air intake seat 211 using the external thread 314 provided on the outside, and the connection is convenient and firm.

[0027] Working principle:

[0028] When the flue gas whitening and water-saving device is used, hot water vapor rises from the bottom of the cooling tower 111. When the hot water vapor passes through the mixing plate 213, an external fan is used to supply air so that the hot water vapor enters from the air inlet pipe 212. The air is sent into the hollow structure inside the mixing plate 213 through the air inlet seat 211, so that the hot water vapor is mixed with the supplied air and the hot water vapor is cooled by blowing, which can effectively reduce the heat carried by the hot water vapor. When the hot water vapor is ejected from the chimney 112, the dew point temperature of the flue gas will not be higher than the ambient air temperature, and the water vapor in the flue gas will condense to form small droplets. There will be no white smoke or tailing of water vapor at the chimney outlet. The hot water vapor continues to rise. When it passes through the heat exchange tube 216, cold water is introduced from the water inlet pipe 215 to allow it to enter the inside of the heat exchange tube 216. The cold water is then circulated and discharged from the water outlet pipe 217. At this time, the hot air can be heat-exchanged by the heat exchange tube 216, further absorbing the heat carried by the hot air to reduce its temperature. When it is ejected from the chimney part 112, the dew point temperature of the flue gas will not be higher than the ambient air temperature, and the heat carried by the high-temperature flue gas can be used to heat water resources, without causing energy waste.

[0029] When using the flue gas whitening and water-saving device, the outside air introduced from the air inlet pipe 212 can be filtered by the filter plate 311 installed inside the air inlet seat 211 when passing through the air inlet seat 211, so as to prevent the air entering the mixing disk 213 from carrying impurities and affecting the cooling of the hot air. The filter plate 311 is installed inside the air inlet seat 211 using the mounting groove 312 and the mounting bolt 313. The installation is simple and the disassembly and assembly operation is convenient. The operation is now completed.

[0030] The above are only preferred embodiments of the present invention and do not constitute any form of limitation to the present invention. Any ordinary technician in this industry can smoothly implement the present invention as shown in the drawings and above. However, any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A flue gas whitening and water-saving device, comprising: a cooling tower (111) and a chimney (112), wherein the chimney (112) is fixedly provided at the upper end of the cooling tower (111), characterized in that: A cooling mechanism (2) is provided inside the cooling tower (111), and a filtering mechanism (3) is provided outside the cooling tower (111). The cooling mechanism (2) comprises an air intake seat (211), the air intake seat (211) is fixedly connected to the outer wall of the cooling tower (111), an air intake pipe (212) is installed inside the air intake seat (211), the air intake seat (211) is communicated with a mixing disk (213), the mixing disk (213) is fixedly provided on the inner wall of the cooling tower (111), the mixing disk (213) is hollow, and a through hole (214) is provided inside the mixing disk (213).

2. The device for eliminating white smoke and saving water according to claim 1, characterized in that: A water inlet pipe (215) is inserted into the cooling tower (111), one end of the water inlet pipe (215) is connected to a heat exchange pipe (216), and the other end of the heat exchange pipe (216) is connected to a water outlet pipe (217).

3. The device for eliminating white smoke and saving water according to claim 2, characterized in that: The heat exchange tube (216) is arranged in a spiral shape, and the heat exchange tube (216) is arranged above the mixing disk (213).

4. The device for eliminating white smoke and saving water according to claim 1, characterized in that: The filtering mechanism (3) comprises a filter plate (311), the filter plate (311) being installed inside the air intake seat (211), and the diameter of the filter plate (311) being the same as the diameter of the air intake pipe (212).

5. The device for eliminating white smoke and saving water according to claim 4, characterized in that: A mounting groove (312) is provided inside the filter plate (311), and the mounting groove (312) is provided inside the air inlet seat (211). A mounting bolt (313) is installed inside the mounting groove (312).

6. The device for eliminating white smoke and saving water according to claim 1, characterized in that: The outer wall of the air intake pipe (212) is provided with an external thread (314), the inner wall of the air intake seat (211) is provided with an internal thread (315), and the air intake pipe (212) is connected to the interior of the air intake seat (211) through threads.

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