Energy conservation and emission reduction device for thermal power plant

Abstract

The utility model discloses an energy conservation and emission reduction device for a thermal power plant, which relates to the technical field of thermal power plants and comprises a heat exchange box, an air inlet pipe, a filter box and a water circulation heat exchange device, the water circulation heat exchange device is positioned inside the heat exchange box, one end of the heat exchange box is fixedly connected with the filter box, and the other end of the heat exchange box is fixedly connected with the air inlet pipe. And a ventilation adjusting assembly is arranged in the filter box. According to the utility model, the ventilation adjusting assembly, the gas supply three-way pipe, the first gas supply pipe, the second gas supply pipe, the first filter screen box and the second filter screen box are matched for use, so that when the filter plate is maintained and replaced, the continuous operation of flue gas purification work can be ensured, and the emission reduction effect is ensured. The ventilation adjusting assembly can be sealed in the filter box through the mounting guide frame and the mounting plate, smoke leakage in the deflection process of the first sealing plate is avoided, contact end face shells of the gas supply three-way pipe, the first gas supply pipe and the second gas supply pipe and the ventilation adjusting assembly are sealed through rubber rings, and smoke leakage is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal power plants, in particular to an energy-saving and emission-reduction device for thermal power plants. Background Art

[0002] A thermal power plant is a plant that uses combustible materials as fuel to produce electricity. It emits a large amount of flue gas during the power generation process. These flue gases not only contain a large amount of heat, but also a large amount of pollutants that pollute the air. Therefore, it is necessary to reduce the emissions of flue gas from thermal power plants.

[0003] The prior art discloses a Chinese patent with the publication number CN220443397U, which discloses an energy-saving and emission-reduction device for a thermal power plant. The flue gas emission reduction treatment box includes a filter cartridge installed inside, a heat-conducting sleeve disposed outside the filter cartridge, and a second bracket disposed inside the filter cartridge. The filter cartridge has a filter screen and a first adsorption screen disposed on one side of the second bracket, from left to right, and a second adsorption screen disposed on the other side of the second bracket. The flue gas emission reduction treatment box includes a mixing mechanism disposed below the filter cartridge. The utility model allows flue gas emitted by a thermal power plant to be passed into the filter cartridge for filtration, and utilizes the filter screen to achieve flue gas filtration. The first and second adsorption screens simultaneously adsorb odors from the flue gas, achieving efficient treatment of flue gas from the thermal power plant. The utility model also heats cold water within the flue gas emission reduction treatment box, thereby reducing energy consumption.

[0004] However, in actual use, when the filter needs to be maintained or replaced, the device needs to be shut down and then disassembled for maintenance, which not only increases the labor demand of the staff, but also affects the normal progress of emission reduction work during the shutdown maintenance. Utility Model Content

[0005] The purpose of the utility model is to provide an energy-saving and emission-reduction device for a thermal power plant to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A thermal power plant energy-saving and emission-reduction device comprises a heat exchange box, an air intake pipe, a filter box and a water circulation heat exchange device. The water circulation heat exchange device is located inside the heat exchange box. One end of the heat exchange box is fixedly connected to the filter box. A ventilation adjustment component is provided inside the filter box.

[0008] The ventilation adjustment assembly includes a first closing plate, which is fixedly connected to the second closing plate through a closing tube and a ventilation tube symmetrically distributed on one side of the first closing plate, and a side of the first closing plate away from the second closing plate is movably connected to an air supply tee pipe, and a gear is fixedly connected to the center of a side of the first closing plate close to the second closing plate, and a rack is meshed with the outer wall of the gear, and one end of the rack is fixedly connected to an electric push rod.

[0009] A first air supply pipe and a second air supply pipe are movably connected to one side of the second closing plate, one end of the first air supply pipe is fixedly connected to a first filter box, and one end of the second air supply pipe is fixedly connected to a second filter box.

[0010] A further improvement of the technical solution of the present utility model is that the outer wall of the air supply three-way pipe is fixedly connected to the inner wall of the filter box through a mounting plate, one end of the gear is rotatably connected to one side of the mounting plate, and the second air supply pipe is located below the first air supply pipe.

[0011] A further improvement of the technical solution of the present invention is that one end of the first air supply pipe away from the second closing plate is fixedly connected to one side of the first filter box, and one end of the second air supply pipe away from the second closing plate is fixedly connected to one side of the second filter box.

[0012] A further improvement of the technical solution of the present invention is that both ends of the bottom of the first filter box are provided with installation guide frames for guiding and limiting the first filter box.

[0013] A further improvement of the technical solution of the present utility model is that: a sealing placement frame is clamped on the inner wall of the first filter screen box, and a filter plate is fixedly connected to the inner wall of the sealing placement frame.

[0014] A further improvement of the technical solution of the present invention is that: the inner wall of the filter box near one end is provided with two groups of exhaust tee pipes whose air inlet ends are respectively connected to the first filter box and the second filter box.

[0015] A further improvement of the technical solution of the present invention is that a closed door is detachably fixedly connected to the front side of the filter box by bolts.

[0016] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:

[0017] The utility model provides an energy-saving and emission-reduction device for a thermal power plant. By using a ventilation adjustment component, an air supply tee, a first air supply pipe, a second air supply pipe, a first filter box and a second filter box in coordination, the device can ensure the continuous operation of the flue gas purification work and the emission reduction effect when the filter plate is maintained and replaced.

[0018] The utility model provides a thermal power plant energy -conserving and emission reduction device, through install guide frame and mounting plate can close in filter case with ventilation adjustment assembly, avoid the contact end surface shell of three -way pipe, first air supply pipe and second air supply pipe of flue gas leakage of first closed plate deflection process with ventilation adjustment assembly adopts rubber ring to carry out the sealing, avoid flue gas leakage, guarantee the stability of device operation. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the structure schematic diagram of the utility model;

[0020] Figure 2 It is the structure schematic diagram of the utility model;

[0021] Figure 3 It is the ventilation adjustment assembly structure schematic diagram of the utility model;

[0022] Figure 4 It is the installation guide frame structure schematic diagram of the utility model;

[0023] Figure 5 It is the first filter screen box structure schematic diagram of the utility model.

[0024] In the drawing: 1, heat exchange box;2, air inlet pipe;3, filter box;4, exhaust three -way pipe;5, closed door;6, water circulation heat exchange device;7, air supply three -way pipe;8, ventilation adjustment assembly;9, installation guide frame;10, first filter screen box;11, second filter screen box;12, first closed plate;13, second closed plate;14, closed pipe;15, ventilation pipe;16, rack;17, gear;18, electric push rod;19, first air supply pipe;20, second air supply pipe;21, sealed placement frame;22, filter plate. DETAILED DESCRIPTION

[0025] In the description of the utility model, need explanation further, unless another explicit provision and limitation, the term " set " " install " " connect " " connection " should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can indirectly connect through intermediate medium, can be the intercommunication of two elements inside.For the ordinary skill in the art, the above-mentioned terms can be understood in the specific meaning in the utility model according to specific circumstances.

[0026] The utility model will be further explained in detail in conjunction with example:

[0027] For example, Figures 1-5As shown, the utility model provides a kind of energy-saving and emission-reducing device for thermal power plant, including heat exchange box 1, air inlet pipe 2, filter box 3 and water circulation heat exchange device 6, water circulation heat exchange device 6 is located inside heat exchange box 1, one end of heat exchange box 1 is fixedly connected with filter box 3, and the inside of filter box 3 is provided with ventilation adjusting assembly 8.

[0028] Ventilation adjusting assembly 8 includes first closure plate 12, and first closure plate 12 is fixedly connected with second closure plate 13 by the symmetrical distribution of closure pipe 14 and ventilation pipe 15 on its one side, and first closure plate 12 is movably connected with air supply tee pipe 7 on the side away from second closure plate 13, and first closure plate 12 is fixedly connected with gear 17 at the center of the side close to second closure plate 13, and the outer wall of gear 17 is engaged with rack 16, and one end of rack 16 is fixedly connected with electric push rod 18.

[0029] One end of first air supply pipe 19 is fixedly connected with first filter screen box 10, and one end of second air supply pipe 20 is fixedly connected with second filter screen box 11.

[0030] The outer wall of air supply tee pipe 7 is fixedly connected with the inner wall of filter box 3 through mounting plate, one end of gear 17 is rotatably connected with one side of mounting plate, and second air supply pipe 20 is located below first air supply pipe 19.When the maintenance and replacement of filter plate 22 in first filter screen box 10 are carried out, the flue gas transported in air supply tee pipe 7 can be continuously filtered through second filter screen box 11, and the continuous operation of emission reduction work is not affected.

[0031] By installing guide frame 9 and mounting plate, ventilation adjusting assembly 8 can be enclosed in filter box 3, to avoid flue gas leakage during the deflection process of first closure plate 12, and the contact end surface shell of air supply tee pipe 7, first air supply pipe 19 and second air supply pipe 20 with ventilation adjusting assembly 8 is sealed by rubber ring, to avoid flue gas leakage and ensure the stability of device operation.

[0032] Sealing placement frame 21 can be connected with first filter screen box 10 by bolt and sealing ring.

[0033] By installing guide frame 9 and mounting plate, ventilation adjusting assembly 8 can be enclosed in filter box 3, to avoid flue gas leakage during the deflection process of first closure plate 12.

[0034] As shown, Figures 1-5 On the basis of embodiment 1, the utility model provides a kind of technical scheme: preferably, one end of first air supply pipe 19 away from second closure plate 13 is fixedly connected with one side of first filter screen box 10, and one end of second air supply pipe 20 away from second closure plate 13 is fixedly connected with one side of second filter screen box 11.

[0035] Both ends of the bottom of the first filter box 10 are provided with installation guide frames 9 for guiding and limiting the first filter box 10.

[0036] A sealing frame 21 is clamped on the inner wall of the first filter box 10 , and a filter plate 22 is fixedly connected to the inner wall of the sealing frame 21 .

[0037] The inner wall of the filter box 3 near one end is provided with two sets of exhaust three-way pipes 4 whose air inlet ends are connected to the first filter box 10 and the second filter box 11 respectively.

[0038] The front side of the filter box 3 is detachably fixedly connected with a closed door 5 by means of bolts.

[0039] The following is a detailed description of the working principle of the energy-saving and emission-reduction device of the thermal power plant.

[0040] like Figures 1-5 As shown, when the filter plate 22 on the inner wall of the first filter box 10 needs to be maintained and replaced, the electric push rod 18 is started and moved forward a certain distance through the external controller. The electric push rod 18 will drive the gear 17 to rotate half a circle through the teeth, and the gear 17 will drive the first closing plate 12 and the second closing plate 13 to rotate half a circle. At this time, the positions of the closing tube 14 and the ventilation pipe 15 will be swapped, and the ventilation pipe 15 connected to the first air supply pipe 19 will be connected to the second air supply pipe 20, and the smoke transported in the air supply tee 7 will be transported to the second filter box 11 through the second air supply pipe 20 for filtration. The staff will open the closed door 5 and remove the sealing frame 21 from the first filter box 10. Then, the filter plate 22 can be maintained and replaced.

[0041] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A thermal power plant energy-saving and emission-reduction device, comprising a heat exchange box (1), an air intake pipe (2), a filter box (3), and a water circulation heat exchange device (6), wherein the water circulation heat exchange device (6) is located inside the heat exchange box (1), and is characterized in that: One end of the heat exchange box (1) is fixedly connected to a filter box (3), and a ventilation adjustment component (8) is provided inside the filter box (3); The ventilation adjustment assembly (8) includes a first closing plate (12), the first closing plate (12) being fixedly connected to the second closing plate (13) via a closing tube (14) and a ventilation tube (15) symmetrically distributed on one side thereof, the first closing plate (12) being movably connected to an air supply three-way tube (7) on a side away from the second closing plate (13), a gear (17) being fixedly connected to the center of a side of the first closing plate (12) close to the second closing plate (13), a rack (16) being meshed with an outer wall of the gear (17), and an electric push rod (18) being fixedly connected to one end of the rack (16); One side of the second closing plate (13) is movably connected to a first air supply pipe (19) and a second air supply pipe (20), one end of the first air supply pipe (19) is fixedly connected to a first filter box (10), and one end of the second air supply pipe (20) is fixedly connected to a second filter box (11).

2. The energy-saving and emission-reduction device for a thermal power plant according to claim 1, characterized in that: The outer wall of the air supply tee (7) is fixedly connected to the inner wall of the filter box (3) via a mounting plate, one end of the gear (17) is rotatably connected to one side of the mounting plate, and the second air supply pipe (20) is located below the first air supply pipe (19).

3. The energy-saving and emission-reduction device for a thermal power plant according to claim 1, characterized in that: One end of the first air supply pipe (19) away from the second closing plate (13) is fixedly connected to one side of the first filter box (10), and one end of the second air supply pipe (20) away from the second closing plate (13) is fixedly connected to one side of the second filter box (11).

4. The energy-saving and emission-reduction device for a thermal power plant according to claim 1, characterized in that: Both ends of the bottom of the first filter box (10) are provided with mounting guide frames (9) for guiding and limiting the first filter box (10).

5. The energy-saving and emission-reduction device for a thermal power plant according to claim 1, characterized in that: The inner wall of the first filter screen box (10) is clamped with a sealing placement frame (21), and the inner wall of the sealing placement frame (21) is fixedly connected with a filter plate (22).

6. The energy-saving and emission-reduction device for a thermal power plant according to claim 1, characterized in that: The inner wall of the filter box (3) near one end is provided with two sets of exhaust three-way pipes (4) whose air inlet ends are respectively connected to the first filter box (10) and the second filter box (11).

7. The energy-saving and emission-reduction device for a thermal power plant according to claim 1, characterized in that: The front side of the filter box (3) is detachably fixedly connected to a closed door (5) via bolts.

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