Flue gas emission pretreatment device for boiler of thermal power plant

Abstract

The invention discloses a thermal power plant boiler flue gas emission pretreatment device which is characterized in that the thermal power plant boiler flue gas emission pretreatment device comprises a thermal power plant boiler, a flue gas filter cartridge and a gas washing box, and belongs to the technical field of boiler flue gas treatment. The flue gas filter cartridge is communicated with the gas washing box, one side of the gas washing box is communicated with the condensing box, one side of the condensing box is communicated with the testing pipe, and the testing pipe is communicated with the flue gas filter cartridge, so that flue gas is conveyed into the flue gas filter cartridge through the thermal power generation boiler and is filtered through the detachable and replaceable filter assembly; then the flue gas with particles filtered out is conveyed into the gas washing box for gas washing, the flue gas can be subjected to dual treatment and reach the emission standard, and the test pipe can input condensate water into the flue gas filter cartridge, so that the flue gas input into the flue gas filter cartridge can be rapidly cooled; and the problem of failure of the detachable filter assembly caused by overheating of the smoke filter cartridge is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of boiler flue gas treatment, and in particular relates to a boiler flue gas emission pretreatment device for a thermal power plant. Background Art

[0002] Thermal power boilers are equipment used in thermal power plants to convert the heat energy generated by the combustion of fuels (such as coal, natural gas, oil, etc.) into steam, which drives the steam turbine to generate electricity. Thermal power boilers generate high-temperature gases by burning various fuels (such as coal, oil, natural gas, etc.). These high-temperature gases exchange heat with water pipes through the furnace, thereby heating water or water vapor. The hot air in the furnace passes through the water-cooled wall, superheater, reheater and other components of the boiler, and the heat energy is gradually transferred to the water in the boiler, heating it to boiling point to form high-pressure steam. The high-temperature and high-pressure steam enters the steam turbine, drives the rotation of the steam turbine, and then drives the generator to generate electricity. After the used steam expands in the steam turbine, the temperature and pressure drop. After that, the steam is cooled by the condenser, converted into water and returned to the boiler, forming a closed loop.

[0003] However, there are certain deficiencies in the treatment of flue gas emitted by existing thermal power generation boilers during use, either the treatment effect is poor or the treatment cost is high, and there is room for improvement. Summary of the invention

[0004] In order to overcome the above defects, the present invention provides a flue gas emission pretreatment device for a thermal power plant boiler to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a flue gas emission pretreatment device for a thermal power plant boiler, characterized in that it includes a thermal power generation boiler, a flue gas filter cartridge and an air washing box, the flue gas filter cartridge is internally movably connected with a removable filter assembly, the thermal power generation boiler is connected to the flue gas filter cartridge, the flue gas filter cartridge is connected to the air washing box through a second smoke exhaust channel, one side of the air washing box is connected to a condensation box, one side of the condensation box is connected to a test tube, and the test tube is connected to the flue gas filter cartridge.

[0006] As a further solution of the present invention: a flue gas emission pretreatment device for a boiler in a thermal power plant, a component box is fixedly installed on one side of the scrubbing box, a synchronization component is arranged inside the component box, the synchronization component includes a driving gear, a rack and a connecting plate, the driving gear is rotatably connected to the component box, the rack is fixedly connected to the connecting plate, the rack is meshedly connected to the driving gear, and the connecting plate is fixedly connected to a removable filter component.

[0007] As a further solution of the present invention: a boiler flue gas emission pretreatment device for a thermal power plant, the removable filter component includes a filter mounting plate and a filter assembly, multiple groups of the filter assemblies are plugged into the filter mounting plate, and the end of the filter mounting plate away from the filter assembly is fixedly connected to the connecting plate.

[0008] As a further solution of the present invention: a flue gas emission pretreatment device for a thermal power plant boiler, wherein the filter assembly is internally movably connected with a filter core, one side of the filter core is fixedly connected with a filter clamp, and the filter clamp and the filter core are both movably connected to the filter assembly.

[0009] As a further solution of the present invention: a flue gas emission pretreatment device for a thermal power plant boiler, wherein one side of the filter clamp is magnetically connected to a filter holder, an embedded groove is provided inside the filter holder, an elastic clamp is fixedly connected inside the embedded groove, and the elastic clamp is movably engaged with the filter inner core.

[0010] As a further solution of the present invention: a boiler flue gas emission pretreatment device for a thermal power plant, one end of the filter assembly is fixedly connected with a half-circle clamp, the other end of the filter assembly is fixedly connected with an inner circle cavity, and the half-circle clamp is adapted to the inner circle cavity.

[0011] As a further solution of the present invention: a flue gas emission pretreatment device for a thermal power plant boiler, an embedded handle is fixedly installed inside the filter card.

[0012] As a further solution of the present invention: a flue gas emission pretreatment device for a thermal power plant boiler, wherein a heating coil is fixedly connected to the outside of the scrubbing box, a servo motor for driving the driving gear to rotate is fixedly installed inside the component box, and the heating coil and the servo motor are both electrically connected to the control cabinet of the boiler.

[0013] As a further solution of the present invention: a flue gas emission pretreatment device for a thermal power plant boiler, the elastic clamp is made of two sections of movable plug-in tubes and a group of springs, one tube is fixedly installed inside the embedded groove, and the inside of the tube is fixedly connected to one end of the spring, and the other tube is fixedly connected to the other end of the spring, and the two tubes are movably adapted to each other.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. Since the flue gas filter cartridge is internally movably connected with a detachable filter assembly, the thermal power generation boiler is connected to the flue gas filter cartridge, the flue gas filter cartridge is connected to an air washing box, one side of the air washing box is connected to a condensation box, one side of the condensation box is connected to a test tube, and the test tube is connected to the flue gas filter cartridge. Therefore, the flue gas is transported into the flue gas filter cartridge through the thermal power generation boiler and filtered through the detachable filter assembly, and then the flue gas with particles filtered out is transported to the air washing box for air washing, so that the flue gas can undergo double treatment and meet the emission standards, and the test tube can input condensed water into the flue gas filter cartridge, so that the flue gas input into the flue gas filter cartridge can be quickly cooled, thereby avoiding the problem of failure of the detachable filter assembly due to overheating of the flue gas filter cartridge.

[0016] 2. Since a component box is fixedly installed on one side of the scrubber box, a synchronization component is arranged inside the component box, and the synchronization component includes a driving gear, a rack and a connecting plate. The driving gear is rotatably connected to the component box, the rack is fixedly connected to the connecting plate, the rack is meshingly connected to the driving gear, and the connecting plate is fixedly connected to the removable filter component. Therefore, the removable filter components on both sides are driven by the transmission of the synchronization component to move, and the removable filter components on both sides can move synchronously, thereby ensuring that there will be no gaps in the assembly of the removable filter components after replacement, thereby ensuring the filtering quality of the equipment for flue gas particles.

[0017] 3. Since multiple groups of filter assemblies are plugged into the filter mounting plate, the end of the filter mounting plate away from the filter assembly is fixedly connected to the connecting plate, the filter core is movably connected inside the filter assembly, and a filter clamp is fixedly connected to one side of the filter core. The filter clamp and the filter core are both movably connected to the filter assembly, and a filter holder is magnetically connected to one side of the filter holder. An embedded groove is provided inside the filter holder, and an elastic clamp is fixedly connected to the inside of the embedded groove. The elastic clamp is movably engaged with the filter core, and a half-circle clamp is fixedly connected to one end of the filter assembly, and an inner circle cavity is fixedly connected to the other end of the filter assembly. The half-circle clamp is adapted to the inner circle cavity, so that the filter core, filter assembly and filter mounting plate can be replaced quickly and conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of a flue gas emission pretreatment device for a thermal power plant boiler according to the present invention;

[0019] Figure 2 It is a structural schematic diagram of a detachable filter assembly and a synchronization assembly in a flue gas emission pretreatment device for a thermal power plant boiler according to the present invention;

[0020] Figure 3 It is a structural schematic diagram of a filter assembly in a flue gas emission pretreatment device for a thermal power plant boiler according to the present invention;

[0021] Figure 4This is one of the structural schematic diagrams of a filter inner core in a flue gas emission pretreatment device for a thermal power plant boiler according to the present invention;

[0022] Figure 5 This is a second structural schematic diagram of a filter inner core in a flue gas emission pretreatment device for a thermal power plant boiler according to the present invention;

[0023] Figure 6 The present invention is a schematic structural diagram of a filter holder in a flue gas emission pretreatment device for a thermal power plant boiler.

[0024] In the figure: 1. thermal power boiler; 2. flue gas filter cartridge; 3. air washing box; 4. first smoke exhaust channel; 5. removable filter assembly; 51. filter mounting plate; 52. filter assembly; 53. filter inner core; 54. half circle clamp; 55. inner circle cavity; 56. filter clamp head; 57. filter clamp seat; 58. embedded handle; 59. embedded groove; 50. elastic clamp head; 6. second smoke exhaust channel; 7. condensation box; 8. test tube; 9. assembly box; 10. synchronization assembly; 101. driving gear; 102. rack; 103. connecting plate; 11. heating coil. DETAILED DESCRIPTION

[0025] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0027] As shown in the accompanying drawings, the present invention provides a technical solution: a flue gas emission pretreatment device for a thermal power plant boiler, comprising a thermal power generation boiler 1, a flue gas filter cartridge 2 and an air washing box 3, wherein the flue gas filter cartridge 2 is internally movably connected with a removable filter assembly 5, the thermal power generation boiler 1 is connected to the flue gas filter cartridge 2, the flue gas filter cartridge 2 is connected to the air washing box 3 through a second smoke exhaust channel 6, one side of the air washing box 3 is connected to a condensation box 7, one side of the condensation box 7 is connected to a test tube 8, and the test tube 8 is connected to the flue gas filter cartridge 2.

[0028] Since the flue gas filter cartridge 2 is internally movably connected with a removable filter assembly 5, the thermal power generation boiler 1 is connected to the flue gas filter cartridge 2, and the flue gas filter cartridge 2 is connected to the scrubbing box 3 through the second smoke exhaust channel 6, and one side of the scrubbing box 3 is connected to a condensation box 7, and one side of the condensation box 7 is connected to a test tube 8, and the test tube 8 is connected to the flue gas filter cartridge 2. Therefore, the flue gas is transported into the flue gas filter cartridge 2 through the thermal power generation boiler 1 and filtered through the removable filter assembly 5, and then the flue gas with particles filtered out is transported to the scrubbing box 3 for scrubbing, so that the flue gas can undergo dual treatment and meet the emission standards, and the test tube 8 can input condensed water into the flue gas filter cartridge 2, so that the flue gas input into the flue gas filter cartridge 2 can be quickly cooled, thereby avoiding the problem of overheating of the flue gas filter cartridge 2 causing the removable filter assembly 5 to fail.

[0029] As a further solution of the present invention: a boiler flue gas emission pretreatment device for a thermal power plant, a component box 9 is fixedly installed on one side of the scrubbing box 3, a synchronization component 10 is arranged inside the component box 9, and the synchronization component 10 includes a driving gear 101, a rack 102 and a connecting plate 103, the driving gear 101 is rotatably connected to the component box 9, the rack 102 is fixedly connected to the connecting plate 103, the rack 102 is meshedly connected to the driving gear 101, and the connecting plate 103 is fixedly connected to the detachable filter component 5.

[0030] Since a component box 9 is fixedly installed on one side of the scrubber box 3, a synchronous component 10 is arranged inside the component box 9, and the synchronous component 10 includes a driving gear 101, a rack 102 and a connecting plate 103. The driving gear 101 is rotatably connected to the component box 9, the rack 102 is fixedly connected to the connecting plate 103, the rack 102 is meshedly connected to the driving gear 101, and the connecting plate 103 is fixedly connected to the removable filter component 5. Therefore, the removable filter components 5 on both sides are driven by the transmission of the synchronous component 10 to move, and the removable filter components 5 on both sides can be moved synchronously, thereby ensuring that there will be no gaps in the assembly of the removable filter components 5 after replacement, thereby ensuring the filtering quality of the equipment for smoke particles.

[0031] As a further solution of the present invention: a boiler flue gas emission pretreatment device for a thermal power plant, the removable filter component 5 includes a filter mounting plate 51 and a filter assembly 52, multiple groups of the filter assemblies 52 are plugged into the filter mounting plate 51, and the end of the filter mounting plate 51 away from the filter assembly 52 is fixedly connected to the connecting plate 103.

[0032] As a further solution of the present invention: a flue gas emission pretreatment device for a thermal power plant boiler, the filter assembly 52 is internally movably connected with a filter core 53, one side of the filter core 53 is fixedly connected with a filter clamp 56, and the filter clamp 56 and the filter core 53 are both movably connected to the filter assembly 52.

[0033] As a further solution of the present invention: a flue gas emission pretreatment device for a thermal power plant boiler, one side of the filter clamp 56 is magnetically connected to a filter holder 57, an embedded groove 59 is provided inside the filter holder 57, an elastic clamp 50 is fixedly connected inside the embedded groove 59, and the elastic clamp 50 is movably engaged with the filter inner core 53.

[0034] As a further solution of the present invention: a flue gas emission pretreatment device for a thermal power plant boiler, one end of the filter assembly 52 is fixedly connected with a half-circle clamp 54, the other end of the filter assembly 52 is fixedly connected with an inner circle cavity 55, and the half-circle clamp 54 is adapted to the inner circle cavity 55.

[0035] Since the plurality of filter assemblies 52 are all plugged into the filter mounting plate 51, one end of the filter mounting plate 51 away from the filter assembly 52 is fixedly connected to the connecting plate 103, a filter core 53 is movably connected inside the filter assembly 52, a filter clamp 56 is fixedly connected to one side of the filter core 53, the filter clamp 56 and the filter core 53 are both movably connected to the filter assembly 52, a filter holder 57 is magnetically connected to one side of the filter clamp 56, an embedded groove 59 is provided inside the filter holder 57, an elastic clamp 50 is fixedly connected inside the embedded groove 59, the elastic clamp 50 is movably engaged with the filter core 53, one end of the filter assembly 52 is fixedly connected to a half-circle clamp 54, the other end of the filter assembly 52 is fixedly connected to an inner circle cavity 55, the half-circle clamp 54 is adapted to the inner circle cavity 55, so that the filter core 53, the filter assembly 52 and the filter mounting plate 51 can be replaced quickly and conveniently.

[0036] As a further solution of the present invention: a flue gas emission pretreatment device for a thermal power plant boiler, an embedded handle 58 is fixedly installed inside the filter clamp 56.

[0037] As a further solution of the present invention: a flue gas emission pretreatment device for a thermal power plant boiler, the outer side of the scrubbing box 3 is fixedly connected with a heating coil 11, the interior of the component box 9 is fixedly installed with a servo motor for driving the driving gear 101 to rotate, and the heating coil 11 and the servo motor are both electrically connected to the control cabinet of the boiler.

[0038] As a further solution of the present invention: a flue gas emission pretreatment device for a thermal power plant boiler, the elastic clamp 50 is made of two sections of movable plug-in tubes and a group of springs, one tube is fixedly installed inside the embedded groove 59, and the inside of the tube is fixedly connected to one end of the spring, and the other tube is fixedly connected to the other end of the spring, and the two tubes are movably adapted to each other.

[0039] The working principle of the present invention is as follows: since the flue gas filter cartridge 2 is internally movably connected with a removable filter assembly 5, the thermal power generation boiler 1 is connected to the flue gas filter cartridge 2, the flue gas filter cartridge 2 is connected to the scrubbing box 3, one side of the scrubbing box 3 is connected to a condensing box 7, one side of the condensing box 7 is connected to a test tube 8, and the test tube 8 is connected to the flue gas filter cartridge 2. Therefore, the flue gas is transported into the flue gas filter cartridge 2 through the thermal power generation boiler 1 and filtered through the removable filter assembly 5, and then the flue gas with particles filtered out is transported to the scrubbing box 3 for scrubbing, so that the flue gas can undergo dual treatment and meet the emission standards, and the test tube 8 can input condensed water into the flue gas filter cartridge 2, so that the flue gas input into the flue gas filter cartridge 2 can be quickly cooled, thereby avoiding the problem of overheating of the flue gas filter cartridge 2 causing the removable filter assembly 5 to fail.

[0040] Since a component box 9 is fixedly installed on one side of the scrubber box 3, a synchronous component 10 is arranged inside the component box 9, and the synchronous component 10 includes a driving gear 101, a rack 102 and a connecting plate 103. The driving gear 101 is rotatably connected to the component box 9, the rack 102 is fixedly connected to the connecting plate 103, the rack 102 is meshedly connected to the driving gear 101, and the connecting plate 103 is fixedly connected to the removable filter component 5. Therefore, the removable filter components 5 on both sides are driven by the transmission of the synchronous component 10 to move, and the removable filter components 5 on both sides can be moved synchronously, thereby ensuring that there will be no gaps in the assembly of the removable filter components 5 after replacement, thereby ensuring the filtering quality of the equipment for smoke particles.

[0041] Since multiple groups of filter assemblies 52 are all plugged into the filter mounting plate 51, one end of the filter mounting plate 51 away from the filter assembly 52 is fixedly connected to the connecting plate 103, the filter assembly 52 is movably connected with a filter core 53 inside, and a filter clamp 56 is fixedly connected to one side of the filter core 53. The filter clamp 56 and the filter core 53 are both movably connected to the filter assembly 52, and a filter holder 57 is magnetically connected to one side of the filter clamp 56. An embedded groove 59 is provided inside the filter holder 57, and an elastic clamp 50 is fixedly connected inside the embedded groove 59. The elastic clamp 50 is movably engaged with the filter core 53, and one end of the filter assembly 52 is fixedly connected with a half-circle clamp 54, and the other end of the filter assembly 52 is fixedly connected with an inner circle cavity 55. The half-circle clamp 54 is adapted to the inner circle cavity 55, so that the filter core 53, the filter assembly 52 and the filter mounting plate 51 can be replaced quickly and conveniently.

[0042] What has been described above are only preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, can make equivalent replacements or changes based on the technical scheme and inventive concept of the present invention, which should be covered within the protection scope of the present invention. Various changes can also be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A flue gas pretreatment device for boilers in thermal power plants, characterized in that: The invention comprises a thermal power generation boiler (1), a flue gas filter cartridge (2) and an air washing box (3); the flue gas filter cartridge (2) is internally movably connected with a detachable filter assembly (5); the thermal power generation boiler (1) is connected to the flue gas filter cartridge (2); the flue gas filter cartridge (2) is connected to the air washing box (3) through a second smoke exhaust passage (6); one side of the air washing box (3) is connected to a condensation box (7); one side of the condensation box (7) is connected to a test tube (8); the test tube (8) is connected to the flue gas filter cartridge (2).

2. A thermal power plant boiler flue gas emission pretreatment device according to claim 1, characterized in that: A component box (9) is fixedly mounted on one side of the air washing box (3); a synchronization component (10) is arranged inside the component box (9); the synchronization component (10) comprises a driving gear (101), a rack (102) and a connecting plate (103); the driving gear (101) is rotationally connected to the component box (9); the rack (102) is fixedly connected to the connecting plate (103); the rack (102) is meshedly connected to the driving gear (101); and the connecting plate (103) is fixedly connected to the detachable filter component (5).

3. A flue gas emission pretreatment device for a thermal power plant boiler according to claim 2, characterized in that: The detachable filter assembly (5) comprises a filter mounting plate (51) and a filter assembly (52), a plurality of groups of the filter assemblies (52) are plugged into the filter mounting plate (51), and one end of the filter mounting plate (51) away from the filter assembly (52) is fixedly connected to the connecting plate (103).

4. A flue gas emission pretreatment device for a thermal power plant boiler according to claim 3, characterized in that: The filter assembly (52) is movably connected to a filter core (53) inside, and a filter clamp (56) is fixedly connected to one side of the filter core (53). The filter clamp (56) and the filter core (53) are both movably connected to the filter assembly (52).

5. A flue gas emission pretreatment device for a thermal power plant boiler according to claim 4, characterized in that: One side of the filter clamp (56) is magnetically connected to a filter holder (57), an embedded groove (59) is provided inside the filter holder (57), an elastic clamp (50) is fixedly connected inside the embedded groove (59), and the elastic clamp (50) is movably engaged with the filter inner core (53).

6. A flue gas pretreatment device for boilers in thermal power plants according to claim 5, characterized in that: One end of the filter assembly (52) is fixedly connected to a half-circle clamp (54), and the other end of the filter assembly (52) is fixedly connected to an inner circle cavity (55), and the half-circle clamp (54) is adapted to the inner circle cavity (55).

7. A flue gas emission pretreatment device for a thermal power plant boiler according to claim 6, characterized in that: An embedded handle (58) is fixedly installed inside the filter card head (56).

8. A flue gas pretreatment device for boilers in thermal power plants according to claim 7, characterized in that: A heating coil (11) is fixedly connected to the outside of the scrubbing box (3), and a servo motor for driving the driving gear (101) to rotate is fixedly installed inside the component box (9). The heating coil (11) and the servo motor are both electrically connected to the control cabinet of the boiler.

9. A flue gas emission pretreatment device for a thermal power plant boiler according to claim 8, characterized in that: The elastic clamp (50) is made of two sections of movable plug-in tubes and a group of springs, one tube is fixedly installed inside the embedded groove (59), and the inside of the tube is fixedly connected to one end of the spring, and the other tube is fixedly connected to the other end of the spring, and the two tubes are movably adapted to each other.

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