Tail gas dehumidification mechanism for thermal power plant

Abstract

The invention provides a tail gas dehumidification mechanism for a thermal power plant, which comprises a thermal power plant tail gas dehumidification shell and further comprises a dehumidification structure arranged in the thermal power plant tail gas dehumidification shell. By means of the dehumidification folded plate and the moisture absorbent, water vapor in the tail gas can be better removed, the situation that the water vapor in the tail gas affects the follow-up treatment procedure is avoided, and small water drops condensed from the water vapor in the tail gas slide downwards along the dehumidification folded plate and finally fall into clean water below. According to the device, when the water level rises, a pressing frame is driven to rise to press a pressing switch, a rotating motor is powered on to rotate, stirring blades are driven to stir the smoke dust particles precipitated at the water bottom, a drainage pipe is opened, drainage is conducted, and after the water level rises, the smoke dust particles in the tail gas can be effectively removed. And water is better and automatically drained, and the situation that the water level is too high and overflows into the dehumidification folded plate is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of tail gas treatment in thermal power plants, in particular to a tail gas dehumidification mechanism for thermal power plants. Background Art

[0002] A thermal power plant is a factory that uses coal, oil, natural gas and other fuels to produce electricity. It burns fuel to heat water in the boiler to generate steam, which drives the turbine to rotate, and then drives the generator to generate electricity, converting the chemical energy of the fuel into electrical energy. During the power generation process of a thermal power plant, a large amount of exhaust gas is generated, which usually contains a large amount of water vapor.

[0003] During the tail gas treatment process, if the tail gas carries a lot of water into the next process, it will cause the tail gas treatment reaction solution to be diluted, affecting the overall treatment efficiency and quality of the tail gas. Therefore, how to better remove the water vapor in the tail gas and avoid the water vapor in the tail gas affecting the subsequent treatment procedures is an important issue that needs to be solved in the design of the tail gas dehumidification mechanism for thermal power plants. Summary of the invention

[0004] The present invention provides an exhaust gas dehumidification mechanism for a thermal power plant in order to solve the problem that water vapor in the exhaust gas affects subsequent treatment procedures.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] The present invention provides an exhaust gas dehumidification mechanism for a thermal power plant, comprising an exhaust gas dehumidification housing for a thermal power plant, and further comprising:

[0007] A dehumidification structure, wherein the dehumidification structure is arranged in a tail gas dehumidification shell of a thermal power plant;

[0008] A stirring structure, wherein the stirring structure is arranged inside and below the dehumidification structure;

[0009] A drainage structure, wherein the drainage structure is arranged on one side of the stirring structure, and the stirring structure rotates to drive the drainage structure to move up and down;

[0010] A pressing structure is provided in a tail gas dehumidification shell of a thermal power plant.

[0011] Preferably, an exhaust pipe is fixedly connected to the top side wall of the exhaust gas dehumidification shell of the thermal power plant, a drain pipe is fixedly connected to the back side wall of the exhaust gas dehumidification shell of the thermal power plant, and two support plates are fixedly connected to the bottom side wall of the exhaust gas dehumidification shell of the thermal power plant.

[0012] In this technical solution, the dehumidified exhaust gas can be passed into the next treatment process through the exhaust pipe, the drain pipe can discharge the sewage at the bottom of the exhaust gas dehumidification shell of the thermal power plant, and the support plate 1 supports the exhaust gas dehumidification shell of the thermal power plant.

[0013] Preferably, a ventilation box is fixedly connected to the side wall on the left side of the thermal power plant exhaust dehumidification shell, and ventilation pipe three is fixedly connected at an equal distance to the side wall of the ventilation box connected to the thermal power plant exhaust dehumidification shell, and the bottom end of the ventilation pipe three extends to the bottom of the inner wall of the thermal power plant exhaust dehumidification shell, and an air inlet pipe two is fixedly connected to the side wall on the other side of the ventilation box.

[0014] In this technical solution, the tail gas of the thermal power plant is introduced into the intake pipe 2, and the tail gas enters the clean water through the ventilation box and the ventilation pipe 3. During the process of the tail gas floating upward in the clean water, the smoke particles in the tail gas are dissolved in the clean water, which can better remove the smoke in the tail gas.

[0015] Preferably, a fixed mesh frame is equidistantly slidably connected to the shell of the exhaust gas dehumidification of the thermal power plant, a desiccant is placed in the fixed mesh frame, a sealing gasket is fixedly connected to the end of the fixed mesh frame, and a baffle is fixedly connected to the other side of the sealing gasket, and the baffle is fixed to the side wall of the shell of the exhaust gas dehumidification of the thermal power plant by fixing bolts.

[0016] In the present technical solution, the sealing gasket enables a sealed connection between the baffle plate and the exhaust gas dehumidification shell of the thermal power plant. The desiccant is made of quicklime. After the exhaust gas comes out of the dehumidification folding plate, it passes through the desiccant. When the exhaust gas passes through the quicklime, the quicklime absorbs the residual water vapor in the exhaust gas. The quicklime absorbs moisture to form slaked lime. After the desiccant is saturated, the fixing bolts are removed and the desiccant is drawn out of the exhaust gas dehumidification shell of the thermal power plant for replacement. The replaced slaked lime can be used in the desulfurization process for effective utilization.

[0017] Preferably, the dehumidification structure includes an air inlet box, an air inlet pipe 1, a ventilation pipe 1, a dehumidification folding plate, a ventilation pipe 2, an air outlet box and an outlet pipe, the dehumidification folding plate is fixedly connected to the inner wall of the exhaust gas dehumidification shell of the thermal power plant at an equal distance, the interior of the dehumidification folding plate is set to be hollow, the air inlet box is fixedly connected to the side wall on the front side of the exhaust gas dehumidification shell of the thermal power plant, the air inlet pipe 1 is fixedly connected to the side wall on one side of the air inlet box, the ventilation pipe 1 is fixedly connected between the air inlet box and the dehumidification folding plate at an equal distance, the air outlet box is fixedly connected to the back side wall of the exhaust gas dehumidification shell of the thermal power plant, the ventilation pipe 2 is fixedly connected between the air outlet box and the dehumidification folding plate at an equal distance, and the air outlet pipe is fixedly connected to the side wall on the other side of the air outlet box.

[0018] In the present technical scheme, the cold air is passed into the air inlet pipe one, and then enters the dehumidification folding plate through the air inlet and ventilation pipe one, and then is discharged through ventilation pipe two, the air outlet box and the air outlet pipe. The dehumidification folding plate is made of a material with good thermal conductivity. The cold air in the dehumidification folding plate exchanges heat with the exhaust gas through the side wall of the dehumidification folding plate, so that the temperature of the exhaust gas is reduced. The water vapor in the exhaust gas will condense into small water droplets on the side wall of the dehumidification folding plate. The water droplets slide down along the dehumidification folding plate and finally fall into the clean water below, which is used to remove smoke and dust in the exhaust gas.

[0019] Preferably, support plate 2, support plate 3, a limit frame and a support block are fixedly connected to the inner wall of the exhaust gas dehumidification shell of the thermal power plant, support plate 2, support plate 3 and the other side of the support block are fixedly connected to the side wall of the dehumidification folding plate, and a push switch is fixedly connected to the bottom side wall of the support block.

[0020] In the technical solution, when the push switch is pressed, the rotating motor is powered on and rotates, and when the push switch pops up, the rotating motor is powered off and no longer rotates.

[0021] Preferably, the stirring structure includes a rotating motor, a rotating rod 1, a fixed sleeve and stirring blades, the rotating rod 1 is rotatably connected to the dehumidification folding plate and the bottom inner wall of the exhaust gas dehumidification shell of the thermal power plant, the rotating motor is fixedly connected to the bottom side wall of the exhaust gas dehumidification shell of the thermal power plant, the rotating end of the rotating motor is fixedly connected to the rotating rod 1, the side wall of the rotating rod 1 is fixedly connected with a fixed sleeve, the side wall of the fixed sleeve is fixedly connected with stirring blades at equal distances, and the rotating motor is electrically connected to the push switch.

[0022] In this technical solution, the rotating motor drives the rotating rod to rotate, and the rotating rod drives the stirring blades and the transmission wheel to rotate. The stirring blades rotate to stir the smoke particles settled on the bottom of the water to prevent the smoke from settling on the bottom of the water and being unable to be discharged with the water.

[0023] Preferably, the drainage structure includes a blocking block, a fixed rod 1, a connecting rod 1, a rotating plate, a fixed rod 2 and a connecting rod 2, the fixed rod 2 is fixedly connected to the inner wall of the exhaust gas dehumidification shell of the thermal power plant, the fixed rod 2 is rotatably connected to the rotating plate, the side wall of the rotating plate is fixedly connected to the connecting rod 2, the other end of the connecting rod 2 is rotatably connected to one end of the connecting rod 1, the other end of the connecting rod 1 is rotatably connected to the fixed rod 1, the fixed rod 1 is slidably connected in the limit frame, the bottom of the fixed rod 1 is fixedly connected to the blocking block, and the side wall of the blocking block fits the end of the drainage pipe.

[0024] In this technical solution, the rotating plate rotates to drive the connecting rod 2 to rotate, the connecting rod 2 drives the connecting rod 1 to move, the connecting rod 1 drives the fixed rod 1 to slide upward, and the fixed rod 1 pulls the blocking block up, so that the drain pipe opens for drainage.

[0025] Preferably, the drainage structure includes a transmission wheel 1, a transmission belt, a push rod, a transmission wheel 2 and a rotating rod 2, the transmission wheel 1 is fixedly connected to the side wall of the rotating rod 1, the rotating rod 2 is rotatably connected to the bottom side wall of the support plate 2, the transmission wheel 2 is fixedly connected to the side wall of the rotating rod 2, a transmission belt is connected between the transmission wheel 1 and the transmission wheel 2, and the push rod is fixedly connected to the bottom side wall of the transmission belt.

[0026] In this technical solution, the transmission belt is driven to move when the transmission wheel rotates, and the transmission belt drives the push rod to move. When the push rod passes the rotating plate, it drives the rotating plate to rotate.

[0027] Preferably, the pressing structure includes a floating plate and a pressing frame, the pressing frame is slidably connected to the side wall of the second supporting plate, the pressing frame is located directly below the pressing switch, and the floating plate is fixedly connected to the bottom of the pressing frame.

[0028] In this technical solution, the water level at the bottom of the exhaust gas dehumidification shell of the thermal power plant continues to rise, the rising water level drives the floating plate to rise, the floating plate drives the pressing frame to rise, and the rising pressing frame presses the pressing switch.

[0029] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.

[0030] The positive and progressive effects of the present invention are:

[0031] 1. By passing the cold air into the air inlet pipe 1, the cold air enters the dehumidification folding plate through the air inlet and ventilation pipe 1, and the cold air exchanges heat with the exhaust gas through the side wall of the dehumidification folding plate, so that the exhaust gas temperature is reduced, and the water vapor in the exhaust gas will condense into small water droplets on the side wall of the dehumidification folding plate, which can better remove the water vapor in the exhaust gas. After the exhaust gas comes out of the dehumidification folding plate, it passes through the desiccant, and the desiccant absorbs the residual water vapor in the exhaust gas, which is convenient for better removal of the water vapor in the exhaust gas and avoids the water vapor in the exhaust gas affecting the subsequent treatment procedures.

[0032] 2. In the present application, the exhaust gas enters the clean water through the ventilation pipe three. During the process of the exhaust gas floating upward in the clean water, the smoke particles in the exhaust gas dissolve in the clean water, which can better remove the smoke in the exhaust gas. The exhaust gas after the smoke is removed then floats upward and enters the dehumidification folding plate. The water vapor in the exhaust gas condenses into small water droplets on the side wall of the dehumidification folding plate, slides downward along the dehumidification folding plate, and finally falls into the clean water below, which is used to remove the smoke in the exhaust gas, so as to effectively utilize the water vapor discharged from the exhaust gas to remove the smoke particles in the exhaust gas.

[0033] 3. In the present application, when the water level at the bottom of the exhaust gas dehumidification shell of the thermal power plant rises, the floating plate drives the pressing frame to rise to press the pressing switch, and the rotating motor is energized to rotate. The rotating motor rotates the stirring blades and the transmission wheel 1 to rotate. The stirring blades rotate to stir the smoke particles settled on the bottom of the water. The rotation of the transmission wheel 1 drives the push rod to move back and forth around the transmission wheel 1 and the transmission wheel 2. When the push rod passes the rotating plate, it drives the blocking block to rise, so that the drain pipe is opened for drainage. After the push rod leaves the rotating plate, the blocking block falls and re-seals the drain pipe, so that the drain pipe is intermittently drained until the water level drops and drives the pressing frame to leave the pressing switch. The pressing switch pops up and the rotating motor is powered off, so that after the water level rises, it is convenient to automatically drain the water to avoid the water level being too high and overflowing into the dehumidification folding plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention.

[0035] Figure 2 It is a schematic diagram of the overall internal structure of the present invention.

[0036] Figure 3 It is a schematic diagram of the overall internal structure of the present invention from a side view.

[0037] Figure 4 It is a schematic diagram of the internal structure of the present invention as a whole viewed from above.

[0038] Figure 5 It is a schematic diagram of the three-dimensional structure of the drainage structure of the present invention.

[0039] Figure 6 For the present invention as a whole Figure 2 Schematic diagram of the local enlarged structure at A.

[0040] Description of Reference Numerals

[0041] 1. Thermal power plant tail gas dehumidification shell; 2. Support plate 1; 3. Dehumidification structure; 301. Air inlet box; 302. Air inlet pipe 1; 303. Ventilation pipe 1; 304. Dehumidification folding plate; 305. Ventilation pipe 2; 306. Air outlet box; 307. Ventilation pipe; 4. Exhaust pipe; 5. Ventilation box; 6. Air inlet pipe 2; 7. Support plate 2; 8. Fixed mesh frame; 9. Moisture-proof agent; 10. Ventilation pipe 3; 11. Stirring structure; 1101. Rotating motor; 1102. Rotating rod 1; 1103. Fixed sleeve; 1104. Stirring blades; 12. Drainage structure; 1 201, blocking block; 1202, fixing rod one; 1203, connecting rod one; 1204, rotating plate; 1205, fixing rod two; 1206, connecting rod two; 1211, driving wheel one; 1212, driving belt; 1213, pushing rod; 1214, driving wheel two; 1215, rotating rod two; 13, limiting frame; 14, supporting plate three; 15, sealing gasket; 16, shielding plate; 17, fixing bolt; 18, drain pipe; 19, pressing structure; 1901, floating plate; 1902, pressing frame; 20, supporting block; 21, pressing switch. DETAILED DESCRIPTION

[0042] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0043] like Figure 1-6 As shown, the tail gas dehumidification mechanism for a thermal power plant includes a tail gas dehumidification housing 1 for a thermal power plant, and also includes:

[0044] A dehumidification structure 3, wherein the dehumidification structure 3 is arranged in a tail gas dehumidification housing 1 of a thermal power plant;

[0045] A stirring structure 11, wherein the stirring structure 11 is arranged inside and below the dehumidification structure 3;

[0046] A drainage structure 12, wherein the drainage structure 12 is arranged on one side of the stirring structure 11, and the stirring structure 11 rotates to drive the drainage structure 12 to move up and down;

[0047] The pressing structure 19 is arranged in the tail gas dehumidification shell 1 of the thermal power plant.

[0048] The exhaust pipe 4 is fixedly connected to the top side wall of the thermal power plant exhaust gas dehumidification shell 1, the drain pipe 18 is fixedly connected to the back side wall of the thermal power plant exhaust gas dehumidification shell 1, and two support plates 2 are fixedly connected to the bottom side wall of the thermal power plant exhaust gas dehumidification shell 1.

[0049] The dehumidified exhaust gas can be introduced into the next treatment process through the exhaust pipe 4, and the drain pipe 18 can discharge the sewage at the bottom of the exhaust gas dehumidification shell 1 of the thermal power plant. The support plate 2 supports the exhaust gas dehumidification shell 1 of the thermal power plant.

[0050] A ventilation box 5 is fixedly connected to the side wall on the left side of the thermal power plant exhaust gas dehumidification shell 1, and ventilation pipes 3 10 are fixedly connected to the side wall connected to the thermal power plant exhaust gas dehumidification shell 1 at an equal distance. The bottom end of the ventilation pipe 3 10 extends to the bottom of the inner wall of the thermal power plant exhaust gas dehumidification shell 1, and an air intake pipe 2 6 is fixedly connected to the side wall on the other side of the ventilation box 5.

[0051] The tail gas of the thermal power plant is introduced into the air inlet pipe 2 6, and the tail gas enters the clean water through the ventilation box 5 and the ventilation pipe 3 10. During the process of the tail gas floating upward in the clean water, the smoke particles in the tail gas are dissolved in the clean water, which can better remove the smoke in the tail gas.

[0052] A fixed mesh frame 8 is equidistantly slidably connected to the thermal power plant exhaust gas dehumidification shell 1, a desiccant is placed in the fixed mesh frame 8, a sealing gasket 15 is fixedly connected to the end of the fixed mesh frame 8, and the other side of the sealing gasket 15 is fixedly connected to a shielding plate 16, and the shielding plate 16 is fixed to the side wall of the thermal power plant exhaust gas dehumidification shell 1 by fixing bolts 17.

[0053] The sealing gasket 15 makes the baffle plate 16 and the tail gas dehumidification shell 1 of the thermal power plant sealed. The desiccant is made of quicklime. After the tail gas comes out of the dehumidification folding plate 304, it passes through the desiccant. When the tail gas passes through the quicklime, the quicklime absorbs the residual water vapor in the tail gas. The quicklime absorbs moisture to form slaked lime. After the desiccant is saturated, the fixing bolts 17 are removed, and the desiccant is drawn out of the tail gas dehumidification shell 1 of the thermal power plant for replacement. The replaced slaked lime can be used in the desulfurization process for effective utilization.

[0054] The dehumidification structure 3 includes an air inlet box 301, an air inlet pipe 1 302, a vent pipe 1 303, a dehumidification folding plate 304, a vent pipe 2 305, an air outlet box 306 and an air outlet pipe 307. The dehumidification folding plate 304 is fixedly connected to the inner wall of the tail gas dehumidification shell 1 of the thermal power plant at an equal distance. The interior of the dehumidification folding plate 304 is set to a hollow state. The air inlet box 301 is fixedly connected to the side wall of the front side of the tail gas dehumidification shell 1 of the thermal power plant. An air inlet pipe 302 is fixedly connected to the side wall on one side of the box 301, a ventilation pipe 303 is fixedly connected at an equal distance between the air inlet box 301 and the dehumidification folding plate 304, the air outlet box 306 is fixedly connected to the back side wall of the exhaust gas dehumidification shell 1 of the thermal power plant, a ventilation pipe 2 305 is fixedly connected between the air outlet box 306 and the dehumidification folding plate 304, and an air outlet pipe 307 is fixedly connected to the side wall on the other side of the air outlet box 306.

[0055] The cold air is passed through the air inlet pipe 302, and then enters the dehumidification fold plate 304 through the air inlet and ventilation pipe 303, and then is discharged through the ventilation pipe 305, the air outlet box 306 and the air outlet pipe 307. The dehumidification fold plate 304 is made of a material with good thermal conductivity. The cold air in the dehumidification fold plate 304 exchanges heat with the exhaust gas through the side wall of the dehumidification fold plate 304, so that the temperature of the exhaust gas is reduced, and the water vapor in the exhaust gas condenses into small water droplets on the side wall of the dehumidification fold plate 304. The water droplets slide downward along the dehumidification fold plate 304 and finally fall into the clean water below to remove smoke and dust in the exhaust gas.

[0056] The inner side wall of the exhaust gas dehumidification shell 1 of the thermal power plant is fixedly connected with support plate 2 7, support plate 3 14, limit frame 13 and support block 20, and the other side of support plate 2 7, support plate 3 14 and support block 20 are fixedly connected to the side wall of the dehumidification folding plate 304, and a push switch 21 is fixedly connected to the bottom side wall of the support block 20.

[0057] When the push switch 21 is pressed, the rotating motor 1101 is powered on and rotates, and when the push switch 21 is released, the rotating motor 1101 is powered off and no longer rotates.

[0058] The stirring structure 11 includes a rotating motor 1101, a rotating rod 1102, a fixed sleeve 1103 and stirring blades 1104. The rotating rod 1102 is rotatably connected to the dehumidification folding plate 304 and the bottom inner wall of the exhaust gas dehumidification shell 1 of the thermal power plant. The rotating motor 1101 is fixedly connected to the bottom side wall of the exhaust gas dehumidification shell 1 of the thermal power plant. The rotating end of the rotating motor 1101 is fixedly connected to the rotating rod 1102. The fixing sleeve 1103 is fixedly connected to the side wall of the rotating rod 1102. The stirring blades 1104 are fixedly connected to the side wall of the fixing sleeve 1103 at equal distances. The rotating motor 1101 is electrically connected to the push switch 21.

[0059] The rotating motor 1101 rotates to drive the rotating rod 1102 to rotate, and the rotating rod 1102 drives the stirring blade 1104 and the transmission wheel 1211 to rotate. The stirring blade 1104 rotates to stir the smoke particles settled on the bottom of the water to prevent the smoke from settling on the bottom of the water and being unable to be discharged with the water.

[0060] The drainage structure 12 includes a blocking block 1201, a fixed rod 1202, a connecting rod 1203, a rotating plate 1204, a fixed rod 1205 and a connecting rod 1206. The fixed rod 1205 is fixedly connected to the inner wall of the exhaust gas dehumidification shell 1 of the thermal power plant. The fixed rod 1205 is rotatably connected to the rotating plate 1204. The side wall of the rotating plate 1204 is fixedly connected to the connecting rod 1206. The other end of the connecting rod 1206 is rotatably connected to one end of the connecting rod 1203. The other end of the connecting rod 1203 is rotatably connected to the fixed rod 1202. The fixed rod 1202 is slidably connected in the limit frame 13. The bottom of the fixed rod 1202 is fixedly connected to the blocking block 1201. The side wall of the blocking block 1201 fits the end of the drainage pipe 18.

[0061] The rotation of rotating plate 1204 drives connecting rod 2 1206 to rotate, connecting rod 2 1206 drives connecting rod 1 1203 to move, connecting rod 1 1203 drives fixed rod 1 1202 to slide upward, fixed rod 1202 pulls blocking block 1201 to rise, so that drain pipe 18 is opened for drainage.

[0062] The drainage structure 12 includes a transmission wheel 1211, a transmission belt 1212, a pushing rod 1213, a transmission wheel 1214 and a rotating rod 1215. The transmission wheel 1211 is fixedly connected to the side wall of the rotating rod 1102. The rotating rod 1215 is rotatably connected to the bottom side wall of the support plate 7. The side wall of the rotating rod 1215 is fixedly connected with the transmission wheel 1214. A transmission belt 1212 is connected between the transmission wheel 1211 and the transmission wheel 1214. The pushing rod 1213 is fixedly connected to the bottom side wall of the transmission belt 1212.

[0063] The transmission wheel 1211 rotates to drive the transmission belt 1212 to move, and the transmission belt 1212 drives the push rod 1213 to move. When the push rod 1213 passes the rotating plate 1204, it drives the rotating plate 1204 to rotate.

[0064] The pressing structure 19 includes a floating plate 1901 and a pressing frame 1902. The pressing frame 1902 is slidably connected to the side wall of the supporting plate 2 7. The pressing frame 1902 is located directly below the pressing switch 21. The bottom of the pressing frame 1902 is fixedly connected to the floating plate 1901.

[0065] The water level at the bottom of the tail gas dehumidification shell 1 of the thermal power plant is constantly rising, and the rising water level drives the floating plate 1901 to rise, and the floating plate 1901 drives the pressing frame 1902 to rise, and the pressing frame 1902 rises to press the pressing switch 21.

[0066] When the present invention is in use, the electrical components in the present application are all connected to an external power supply and a control switch. Clean water is injected into the bottom of the exhaust gas dehumidification housing 1 of the thermal power plant. The amount of clean water needs to overflow the bottom of the ventilation pipe 3 10. The exhaust gas of the thermal power plant is introduced into the intake pipe 2 6. The exhaust gas enters the clean water through the ventilation box 5 and the ventilation pipe 3 10. During the process of the exhaust gas floating upward in the clean water, the smoke particles in the exhaust gas are dissolved in the clean water, and the smoke in the exhaust gas can be better removed.

[0067] The exhaust gas after the smoke and dust is removed then floats upward and enters the dehumidification folded plate 304, and the cold air is passed into the air inlet pipe 302, and the cold air enters the dehumidification folded plate 304 through the air inlet and ventilation pipe 303. The dehumidification folded plate 304 is made of a material with good thermal conductivity. The cold air exchanges heat with the exhaust gas through the side wall of the dehumidification folded plate 304, so that the exhaust gas temperature is reduced. The water vapor in the exhaust gas condenses into small water droplets on the side wall of the dehumidification folded plate 304, and the water droplets slide downward along the dehumidification folded plate 304, and finally fall into the clean water below, which is used to remove smoke and dust in the exhaust gas;

[0068] After the tail gas comes out of the dehumidification folding plate 304, it passes through the desiccant, which is made of quicklime. When the tail gas passes through the quicklime, the quicklime absorbs the residual water vapor in the tail gas, thereby better removing the water vapor in the tail gas and preventing the water vapor in the tail gas from affecting the subsequent treatment procedures. The quicklime absorbs moisture to form slaked lime. After the desiccant is saturated, the fixing bolts 17 are removed, and the desiccant is extracted from the tail gas dehumidification shell 1 of the thermal power plant for replacement. The replaced slaked lime can be used in the desulfurization process for effective utilization.

[0069] As the exhaust gas dehumidification is continuously carried out, the water level at the bottom of the exhaust gas dehumidification shell 1 of the thermal power plant is continuously rising, and the rising water level drives the floating plate 1901 to rise, and the floating plate 1901 drives the pressing frame 1902 to rise, and the pressing frame 1902 rises to press the pressing switch 21, and the pressing switch 21 is pressed, and the rotating motor 1101 is energized to rotate, and the rotating motor 1101 rotates to drive the rotating rod 1102 to rotate, and the rotating rod 1102 drives the stirring blade 1104 and the transmission wheel 1211 to rotate, and the stirring blade 1104 rotates to stir the smoke particles deposited on the bottom of the water to prevent the smoke from being deposited on the bottom of the water and being unable to be discharged with the water;

[0070] The transmission wheel 1211 rotates to drive the transmission belt 1212 to move, and the transmission belt 1212 drives the push rod 1213 to move. When the push rod 1213 passes the rotating plate 1204, it drives the rotating plate 1204 to rotate. The rotation of the rotating plate 1204 drives the connecting rod 2 1206 to rotate, and the connecting rod 2 1206 drives the connecting rod 1 1203 to move. The connecting rod 1203 drives the fixed rod 1202 to slide upward, and the fixed rod 1202 pulls the blocking block 1201 to rise, so that the drain pipe 18 is opened to drain water, and the push rod 1213 After leaving the rotating plate 1204, the blocking block 1201 falls down and re-seals the drain pipe 18. As the push rod 1213 moves back and forth around the transmission wheel 1 1211 and the transmission wheel 2 1214, the drain pipe 18 is driven to drain intermittently until the water level drops and drives the pressing frame 1902 to leave the pressing switch 21. The pressing switch 21 is no longer pressed and pops up. The rotating motor 1101 is powered off and no longer rotates, so that after the water level rises, the water can be automatically drained to avoid the water level being too high and overflowing into the dehumidification folding plate 304.

[0071] The present invention is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the present invention. The protection scope of the present invention is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications are within the protection scope of the present invention.

Claims

1. An exhaust gas dehumidification mechanism for a thermal power plant, comprising an exhaust gas dehumidification housing (1) for a thermal power plant, characterized in that: Also includes: A dehumidification structure (3), wherein the dehumidification structure (3) is arranged in a tail gas dehumidification casing (1) of a thermal power plant; A stirring structure (11), wherein the stirring structure (11) is arranged inside and below the dehumidification structure (3); A drainage structure (12), wherein the drainage structure (12) is arranged on one side of the stirring structure (11), and the stirring structure (11) rotates to drive the drainage structure (12) to move up and down; A pressing structure (19), wherein the pressing structure (19) is arranged in a tail gas dehumidification casing (1) of a thermal power plant.

2. The exhaust gas dehumidification mechanism for a thermal power plant according to claim 1, characterized in that: An exhaust pipe (4) is fixedly connected to the top side wall of the thermal power plant exhaust gas dehumidification shell (1), a drain pipe (18) is fixedly connected to the back side wall of the thermal power plant exhaust gas dehumidification shell (1), and two support plates (2) are fixedly connected to the bottom side wall of the thermal power plant exhaust gas dehumidification shell (1).

3. The tail gas dehumidification mechanism for a thermal power plant according to claim 1, characterized in that: A ventilation box (5) is fixedly connected to the side wall on the left side of the thermal power plant exhaust gas dehumidification shell (1), and ventilation pipes three (10) are fixedly connected to the side wall of the ventilation box (5) connected to the thermal power plant exhaust gas dehumidification shell (1) at an equal distance, and the bottom end of the ventilation pipe three (10) extends to the bottom of the inner wall of the thermal power plant exhaust gas dehumidification shell (1), and an air intake pipe two (6) is fixedly connected to the side wall on the other side of the ventilation box (5).

4. The tail gas dehumidification mechanism for a thermal power plant according to claim 1, characterized in that: A fixed mesh frame (8) is equidistantly slidably connected to the thermal power plant exhaust gas dehumidification shell (1), a desiccant is placed in the fixed mesh frame (8), a sealing gasket (15) is fixedly connected to the end of the fixed mesh frame (8), the other side of the sealing gasket (15) is fixedly connected to a shielding plate (16), and the shielding plate (16) is fixed to the side wall of the thermal power plant exhaust gas dehumidification shell (1) by means of fixing bolts (17).

5. The tail gas dehumidification mechanism for a thermal power plant according to claim 1, characterized in that: The dehumidification structure (3) comprises an air inlet box (301), an air inlet pipe (302), a ventilation pipe (303), a dehumidification folding plate (304), a ventilation pipe (305), an air outlet box (306) and an air outlet pipe (307); the dehumidification folding plate (304) is fixedly connected to the inner side wall of the tail gas dehumidification shell (1) of the thermal power plant at an equal distance; the interior of the dehumidification folding plate (304) is set to be in a hollow state; the air inlet box (301) is fixedly connected to the side wall of the front side of the tail gas dehumidification shell (1) of the thermal power plant; An air inlet pipe 1 (302) is fixedly connected to the side wall of one side of the air box (301), a ventilation pipe 1 (303) is fixedly connected at an equal distance between the air inlet box (301) and the dehumidification folding plate (304), the air outlet box (306) is fixedly connected to the back side wall of the tail gas dehumidification shell (1) of the thermal power plant, a ventilation pipe 2 (305) is fixedly connected at an equal distance between the air outlet box (306) and the dehumidification folding plate (304), and an air outlet pipe (307) is fixedly connected to the side wall of the other side of the air outlet box (306).

6. The tail gas dehumidification mechanism for a thermal power plant according to claim 1, characterized in that: The inner side wall of the thermal power plant exhaust gas dehumidification shell (1) is fixedly connected to a second support plate (7), a third support plate (14), a limit frame (13) and a support block (20); the other sides of the second support plate (7), the third support plate (14) and the support block (20) are all fixedly connected to the side wall of the dehumidification folding plate (304); and a push switch (21) is fixedly connected to the bottom side wall of the support block (20).

7. The tail gas dehumidification mechanism for a thermal power plant according to claim 1, characterized in that: The stirring structure (11) comprises a rotating motor (1101), a rotating rod (1102), a fixed sleeve (1103) and stirring blades (1104); the rotating rod (1102) is rotatably connected to the dehumidification folding plate (304) and the bottom inner wall of the thermal power plant exhaust gas dehumidification shell (1); the rotating motor (1101) is fixedly connected to the bottom side wall of the thermal power plant exhaust gas dehumidification shell (1); the rotating end of the rotating motor (1101) is fixedly connected to the rotating rod (1102); the fixing sleeve (1103) is fixedly connected to the side wall of the rotating rod (1102); the stirring blades (1104) are fixedly connected to the side wall of the fixing sleeve (1103) at equal distances; and the rotating motor (1101) is electrically connected to the push switch (21).

8. The tail gas dehumidification mechanism for a thermal power plant according to claim 1, characterized in that: The drainage structure (12) comprises a blocking block (1201), a fixed rod 1 (1202), a connecting rod 1 (1203), a rotating plate (1204), a fixed rod 2 (1205) and a connecting rod 2 (1206), wherein the fixed rod 2 (1205) is fixedly connected to the inner side wall of the tail gas dehumidification shell (1) of the thermal power plant, the fixed rod 2 (1205) is rotatably connected to the rotating plate (1204), and the side wall of the rotating plate (1204) is fixedly connected to the connecting rod 2 (1206). A connecting rod 2 (1206), the other end of the connecting rod 2 (1206) is rotatably connected to one end of a connecting rod 1 (1203), the other end of the connecting rod 1 (1203) is rotatably connected to a fixing rod 1 (1202), the fixing rod 1 (1202) is slidably connected in a limiting frame (13), the bottom of the fixing rod 1 (1202) is fixedly connected to a blocking block (1201), and the side wall of the blocking block (1201) is fitted to the end of the drain pipe (18).

9. The tail gas dehumidification mechanism for a thermal power plant according to claim 8, characterized in that: The drainage structure (12) comprises a transmission wheel (1211), a transmission belt (1212), a push rod (1213), a transmission wheel (1214) and a rotating rod (1215), wherein the transmission wheel (1211) is fixedly connected to the side wall of the rotating rod (1102), the rotating rod (1215) is rotatably connected to the bottom side wall of the supporting plate (7), the transmission wheel (1214) is fixedly connected to the side wall of the rotating rod (1215), a transmission belt (1212) is connected between the transmission wheel (1211) and the transmission wheel (1214), and the push rod (1213) is fixedly connected to the bottom side wall of the transmission belt (1212).

10. The tail gas dehumidification mechanism for a thermal power plant according to claim 1, characterized in that: The pressing structure (19) comprises a floating plate (1901) and a pressing frame (1902), wherein the pressing frame (1902) is slidably connected to the side wall of the second supporting plate (7), the pressing frame (1902) is located directly below the pressing switch (21), and the bottom of the pressing frame (1902) is fixedly connected to the floating plate (1901).

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