A flue gas emission pretreatment device for boilers in thermal power plants

Abstract

The present invention discloses a flue gas emission pretreatment device for a thermal power plant boiler, which is characterized in that it includes a thermal power boiler, a flue gas filter cartridge and an air washing box, and belongs to the technical field of boiler flue gas treatment. The present invention has a detachable filter assembly connected to the internal movability of the flue gas filter cartridge, the thermal power boiler is connected to the flue gas filter cartridge, the flue gas filter cartridge is connected to the 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, flue gas is transported into the flue gas filter cartridge through the thermal power boiler and the flue gas is 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 dual treatment and meet 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.

Description

Technical Field

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

[0002] Thermal power boilers are used in thermal power plants to convert the heat energy generated by burning fuels (such as coal, natural gas, and oil) into steam, which in turn drives steam turbines to generate electricity. Thermal power boilers burn various fuels (such as coal, oil, and natural gas) to produce high-temperature gases. These gases pass through the furnace, exchanging heat with water pipes, heating water or steam. The hot air in the furnace flows through the boiler's water-cooled walls, superheater, and reheater, gradually transferring heat energy to the water within the boiler, heating it to boiling point and forming high-pressure steam. This high-temperature, high-pressure steam enters the steam turbine, driving it and, in turn, driving the generator to generate electricity. The used steam expands in the turbine, reducing its temperature and pressure. The steam is then cooled in a condenser, converted into water, and returned to the boiler, forming a closed circuit.

[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-mentioned 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-mentioned background technology.

[0005] To achieve the above-mentioned objectives, 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 scrubber; a removable filter assembly is movably connected to the interior of the flue gas filter cartridge; the thermal power generation boiler is in communication with the flue gas filter cartridge, which is in communication with the air scrubber via a second flue gas exhaust channel; a condensation tank is in communication with one side of the air scrubber; a test tube is in communication with the flue gas filter cartridge, 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 the flue gas filter cartridge overheating causing the removable filter assembly to fail;

[0006] A component box is fixedly installed on one side of the scrubber box, and a synchronization component is provided 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 meshed with the driving gear, and the connecting plate is fixedly connected to the detachable filter assembly;

[0007] The removable filter assembly includes a filter mounting plate and a filter assembly, and multiple groups of the filter assemblies are plugged into the filter mounting plate, and one end of the filter mounting plate away from the filter assembly is fixedly connected to the connecting plate;

[0008] The filter assembly is movably connected to a filter core, one side of the filter core is fixedly connected to a filter card, and the filter card and the filter core are both movably connected to the filter assembly;

[0009] One side of the filter card head is magnetically connected to a filter card seat, an embedded groove is provided inside the filter card seat, an elastic card head is fixedly connected inside the embedded groove, and the elastic card head is movably connected to the filter inner core.

[0010] 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 is fixedly connected to a half-circle clamp, the other end of the filter assembly is fixedly connected to 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, and 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. The flue gas can undergo dual treatment and meet 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 overheating of the flue gas filter cartridge causing failure of the detachable filter assembly.

[0016] 2. Since a component box is fixedly installed on one side of the air washing box, a synchronization component is provided 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 meshed with 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 be moved 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 filter mounting plate is fixedly connected to the connecting plate at one end away from the filter assembly, 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 one side of the filter clamp is magnetically connected to a 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 one end of the filter assembly is fixedly connected to a half-circle clamp, and the other end of the filter assembly is fixedly connected to the inner ring cavity. The half-circle clamp is adapted to the inner ring 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 This 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 This 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 This is a schematic structural 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 4 This is one of the structural schematic diagrams of a filter 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 core in a flue gas pretreatment device for a thermal power plant boiler according to the present invention;

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

[0024] In the figure: 1. Thermal power generation boiler; 2. Flue gas filter cartridge; 3. Air scrubber; 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. Component box; 10. Synchronous assembly; 101. Driving gear; 102. Rack; 103. Connecting plate; 11. Heating coil. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts 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", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and should not 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, they can be fixedly connected, detachably connected, or connected in one piece; they can be mechanically connected or electrically connected; they can be directly connected, or indirectly connected through an intermediate medium, or they can be internal connections between two components. 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 describes an embodiment of the present invention based on its overall structure.

[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 scrubber 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, and the flue gas filter cartridge 2 is connected to the air scrubber 3 through a second smoke exhaust channel 6, one side of the air scrubber 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 air washing box 3 through the second smoke exhaust channel 6. One side of the air washing box 3 is connected to a condensation box 7, and 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. 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 air washing box 3 for air washing, 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 flue gas emission pretreatment device for a thermal power plant boiler, 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 meshed with the driving gear 101, and the connecting plate 103 is fixedly connected to the removable filter assembly 5.

[0030] Since a component box 9 is fixedly installed on one side of the scrubber box 3, a synchronization component 10 is provided 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 meshed with 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 synchronization component 10 to move, and the removable filter components 5 on both sides can be made to move 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 flue gas particles.

[0031] As a further solution of the present invention: a flue gas emission pretreatment device for a thermal power plant boiler, 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 to a filter core 53, one side of the filter core 53 is fixedly connected to 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 to the inside of 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 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.

[0035] Since multiple groups of filter assemblies 52 are plugged into the filter mounting plate 51, the filter mounting plate 51 is fixedly connected to the connecting plate 103 at one end away from the filter assembly 52, and the filter core 53 is movably connected inside the filter assembly 52. ​​One side of the filter core 53 is fixedly connected to a filter clamp 56. The filter clamp 56 and the filter core 53 are both movably connected to the filter assembly 52. ​​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. The elastic clamp 50 is movably engaged with the filter core 53, and 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 ring cavity 55. The half-circle clamp 54 is adapted to the inner ring 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 card head 56.

[0037] As a further solution of the present invention: a flue gas emission pretreatment device for a thermal power plant boiler, wherein 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, 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 internal movably connected flue gas filter cartridge 2 is provided 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, one side of the air washing box 3 is connected to the condensation box 7, one side of the condensation box 7 is connected to the test tube 8, the test tube 8 is connected to the flue gas filter cartridge 2, so that 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 air washing box 3 for air washing, 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 synchronization component 10 is provided inside the component box 9. 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 meshed with 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 synchronization component 10 to move, and the removable filter components 5 on both sides can be made to move 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 flue gas particles.

[0041] The filter assembly 52 is connected to the filter mounting plate 51 at one end thereof and is fixedly connected to the connecting plate 103 at one end thereof. The filter core 53 is movably connected to the interior of 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 to the inside of the embedded groove 59. The elastic clamp 50 is movably engaged with the filter core 53. A half-circle clamp 54 is fixedly connected to one end of the filter assembly 52. ​​An inner ring cavity 55 is fixedly connected to the other end of the filter assembly 52. ​​The half-circle clamp 54 is adapted to the inner ring 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] The above is only a preferred specific embodiment of the present invention, but the scope of protection 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 solutions and inventive concepts of the present invention, which should be covered by the scope of protection of the present invention. Various changes can be made within the knowledge 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), wherein the flue gas filter cartridge (2) is internally movably connected with a detachable filter assembly (5), the thermal power generation boiler (1) is in communication with the flue gas filter cartridge (2), the flue gas filter cartridge (2) is in communication with the air washing box (3) through a second smoke exhaust channel (6), one side of the air washing box (3) is in communication with a condensation box (7), one side of the condensation box (7) is in communication with a test tube (8), the test tube (8) is in communication with the flue gas filter cartridge (2), 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 that the flue gas filter cartridge (2) is overheated and causes the detachable filter assembly (5) to fail; A component box (9) is fixedly mounted on one side of the scrubbing box (3), and a synchronization component (10) is provided inside the component box (9). The synchronization component (10) includes 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); The detachable filter assembly (5) comprises a filter mounting plate (51) and a filter assembly (52), a plurality of filter assemblies (52) are plugged into the filter mounting plate (51), and an 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 to a filter core (53) inside, and a filter clamp (56) is fixedly connected to one side of the filter core (53), and the filter clamp (56) and the filter core (53) are both movably connected to the filter assembly (52); 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).

2. A thermal power plant boiler flue gas emission pretreatment device according to claim 1, 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).

3. A thermal power plant boiler flue gas emission pretreatment device according to claim 2, characterized in that: An embedded handle (58) is fixedly installed inside the filter card (56).

4. A thermal power plant boiler flue gas emission pretreatment device according to claim 3, characterized in that: A heating coil (11) is fixedly connected to the outside of the air washing 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.

5. A thermal power plant boiler flue gas emission pretreatment device according to claim 4, 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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