Filtering equipment for thermal power plant

Abstract

The utility model provides filtering equipment for a thermal power plant, which comprises a spraying filtering device and a filter screen filtering device, the spraying filtering device is connected with the filter screen filtering device through an exhaust system, and the inner bottom wall of the spraying device is of a structure which is concave in the middle and integrally inclines towards a sewage draining exit. A cleaning mechanism is installed at the bottom of the inner side wall, attached to the highest position of the bottom face of the spraying device, of the spraying device, the inner bottom wall of the spraying device is of a structure which is concave in the middle and integrally inclines towards the sewage draining exit, sewage can be spontaneously collected towards the center when dripping due to the arrangement of the middle concave structure, and dispersion and retention of the sewage on the bottom wall are reduced due to the characteristic; the sewage collection efficiency is improved, the sewage can be drained through the design of the overall structure inclining towards the sewage draining opening, the sewage draining path is optimized, the retention time of the sewage in the device is shortened, and therefore the sewage draining effect is improved, and after filtering is completed, the inner bottom wall of the spraying device can be cleaned through the cleaning mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering equipment, in particular to filtering equipment used in thermal power plants. Background Art

[0002] Thermal power generation is the main method of power generation in my country. It uses the heat energy generated by the combustion of combustibles and converts it into electrical energy through a power generation device. Since thermal power equipment uses the combustion of combustibles to generate electricity, the air inside the thermal power equipment will contain a large amount of dust and other impurities. The direct emission of these dusts not only pollutes the environment, but also affects the health of the workers, so they need to be filtered.

[0003] The existing thermal power plant filtering equipment uses spraying and filter mesh for multiple filtration to make the gas reach the purification standard. However, the existing technology only discharges the sewage after spraying by simply connecting a sewage outlet on the bottom side wall for sewage discharge. The sewage discharge effect is not ideal, and the sludge accumulates on the bottom wall of the spraying equipment and is difficult to clean.

[0004] Therefore, it is necessary to provide a new thermal power plant filtering equipment to solve the above-mentioned technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a filtering device for a thermal power plant.

[0006] The filtering equipment for thermal power plants provided by the utility model comprises: a spray filtering device and a filter screen filtering device, wherein the spray filtering device is connected to the filter screen filtering device through an exhaust system, a sewage outlet is provided at the junction of the bottom and the bottom of the spray filtering device, the inner bottom wall of the spray filtering device is a structure with a depression in the middle and an overall inclination toward the sewage outlet, and a cleaning mechanism is installed near the bottom of the inner side wall of the spray filtering device which is in contact with the highest point of its bottom surface.

[0007] Preferably, the spray filtering device includes a box body, a plurality of spray heads are installed on the top of the box body, an air inlet is fixedly connected to the bottom of one side wall of the box body, a sewage outlet is fixedly connected to the bottom of the side wall adjacent to the air inlet, and an exhaust outlet is fixedly connected to the top of the side wall opposite to the air inlet.

[0008] Preferably, the cleaning mechanism comprises a plurality of high-pressure nozzles, and the plurality of high-pressure nozzles are obliquely installed on the inner wall of the box body.

[0009] Preferably, a guide plate is installed above the plurality of high-pressure nozzles.

[0010] Preferably, the filter screen filtering device comprises a cylinder, a plurality of filter plates are installed inside the cylinder, a gas inlet is opened above the plurality of filter plates close to one side of the box body, and a gas outlet is fixedly connected to one side of the box body below the plurality of filter plates.

[0011] Preferably, the exhaust system includes an air inlet pipe, an air outlet pipe and a fan, one end of the air inlet pipe is fixedly connected to the exhaust port, the other end of the air inlet port is fixedly connected to the fan input end, the fan output end is fixedly connected to one end of the air outlet pipe, and the other end of the air outlet pipe is fixedly connected to the gas supply port.

[0012] Compared with the related art, the filtering equipment for thermal power plants provided by the utility model has the following beneficial effects:

[0013] The utility model provides a filtering device for a thermal power plant, wherein the inner bottom wall of a spray device is a structure with a depression in the middle and an overall inclination toward a sewage outlet. The arrangement of the depression in the middle enables sewage to spontaneously gather toward the center when dripping, and this characteristic reduces the dispersion and retention of sewage on the bottom wall, and improves the efficiency of sewage collection. The design of the overall inclination toward the sewage outlet can drain sewage, optimize the sewage discharge path, and reduce the residence time of sewage in the device, thereby improving the sewage discharge effect. When the filtration is completed, the inner bottom wall of the spray device can be cleaned by a cleaning mechanism. By improving the operating efficiency of the equipment and reducing the maintenance cost, this structural design also helps to achieve the goal of energy conservation and emission reduction, and meets the current requirements of environmental protection and sustainable development. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The overall structural diagram of the filtering equipment for thermal power plants provided by the utility model;

[0015] Figure 2 The overall structural cross-sectional view of the filtering equipment for thermal power plants provided by the utility model;

[0016] Figure 3 The utility model is a partial structural cross-sectional view of the filtering equipment for thermal power plants provided by the utility model.

[0017] Numbers in the figure: 1. Spray filter device; 2. Filter screen filter device; 3. Exhaust system; 4. Box; 5. Spray head; 6. Air inlet; 7. Drain outlet; 8. Exhaust outlet; 9. High-pressure nozzle; 10. Drain plate; 11. Cylinder; 12. Filter plate; 13. Air supply port; 14. Air outlet; 15. Air inlet pipe; 16. Air outlet pipe; 17. Fan. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0019] Please refer to Figure 1-Figure 3 ,in, Figure 1 The overall structural diagram of the filtering equipment for thermal power plants provided by the utility model; Figure 2 The overall structural cross-sectional view of the filtering equipment for thermal power plants provided by the utility model; Figure 3 The utility model is a partial structural cross-sectional view of the filtering equipment for thermal power plants provided by the utility model.

[0020] In the specific implementation process, Figure 1-Figure 3 As shown, a filtering device for a thermal power plant includes a spray filtering device 1 and a filter screen filtering device 2, the spray filtering device 1 is connected to the filter screen filtering device 2 through an exhaust system 3, a sewage outlet 7 is provided at the junction of the bottom and the bottom of the spray filtering device 1, the inner bottom wall of the spray filtering device 1 is a structure that is concave in the middle and inclined toward the sewage outlet 7 as a whole, a cleaning mechanism is installed near the bottom of the inner side wall of the spray filtering device 1 that is attached to the highest point of its bottom surface, the spray filtering device 1 includes a box body 4, a plurality of spray heads 5 are installed on the top of the box body 4, the spray heads 5 are connected to a water source for water supply to complete the spraying action, an air inlet 6 is fixedly connected to the bottom of one side wall of the box body 4, the box body 4 is installed with a sewage outlet 7 fixedly connected to the bottom of the side wall adjacent to the air inlet 6, the box body 4 is installed with an exhaust outlet 8 fixedly connected to the top of the side wall opposite to the air inlet 6, the cleaning mechanism includes a plurality of high-pressure nozzles 9, and the high-pressure nozzles 9 are connected to the water source Water supply is performed to complete the flushing action. Multiple high-pressure nozzles 9 are obliquely installed on the inner wall of the box body 4. A guide plate 10 is installed above the multiple high-pressure nozzles 9, which can shield the high-pressure nozzles 9 to a certain extent and directly guide the sewage to flow to the bottom wall to prevent the sewage that is sprayed and settled from dripping onto the high-pressure nozzles 9 and clogging the nozzles. The filter screen filtering device 2 includes a cylinder 11, and multiple filter plates 12 are installed inside the cylinder 11. An air supply port 13 is opened above the multiple filter plates 12 on one side close to the box body 4, and an air outlet 14 is fixedly connected to one side of the garden box body 4 below the multiple filter plates 12. The exhaust system 3 includes an air inlet pipe 15, an air outlet pipe 16 and a fan 17. One end of the air inlet pipe 15 is fixedly connected to the exhaust port 8, and the other end of the air inlet 6 is fixedly connected to the input end of the fan 17. The output end of the fan 17 is fixedly connected to one end of the air outlet pipe 16, and the other end of the air outlet pipe 16 is fixedly connected to the air supply port 13.

[0021] The working principle provided by the utility model is as follows: the exhaust gas enters the interior of the box body 4 through the air inlet 6, the spray head 5 sprays liquid to settle the impurities in the exhaust gas, the sewage drips onto the bottom wall of the box body 4, the gas passes through the air inlet pipe 15, the fan 17 and the air outlet pipe 16 in turn to reach the cylinder 11, and then passes through the multi-layer filter plate 12 for filtration, and is finally discharged from the air outlet 14. The sewage dripping onto the bottom wall of the box body 4 is provided with a concave structure in the middle of the bottom wall of the box body 4 so that the sewage will spontaneously gather toward the center when dripping. The design of the overall inclined structure toward the sewage outlet 7 can drain the sewage, and the sewage is discharged through the sewage outlet 7. When the filtration is completed, the bottom wall of the box body 4 needs to be cleaned, and the high-pressure spray head 9 can be opened to continue flushing the bottom wall, and the cleaned water is still discharged through the sewage outlet 7.

[0022] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0023] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A filtering device for a thermal power plant, characterized in that: include: A spray filter device (1) and a screen filter device (2), wherein the spray filter device (1) is connected to the screen filter device (2) via an exhaust system (3), a sewage outlet (7) is provided at the junction of the bottom and bottom of the spray filter device (1), the inner bottom wall of the spray filter device (1) is a structure that is concave in the middle and tilted toward the sewage outlet (7) as a whole, and a cleaning mechanism is installed near the bottom of the inner side wall of the spray filter device (1) that is in contact with the highest point of its bottom surface.

2. The filtering equipment for thermal power plants according to claim 1, characterized in that: The spray filtering device (1) comprises a box body (4), a plurality of spray heads (5) are mounted on the top of the box body (4), an air inlet (6) is fixedly connected to the bottom of one side wall of the box body (4), a sewage outlet (7) is fixedly connected to the bottom of the side wall adjacent to the air inlet (6) of the box body (4), and an exhaust outlet (8) is fixedly connected to the top of the side wall opposite to the air inlet (6) of the box body (4).

3. The filtering equipment for thermal power plants according to claim 2, characterized in that: The cleaning mechanism comprises a plurality of high-pressure nozzles (9), and the plurality of high-pressure nozzles (9) are obliquely mounted on the inner wall of the box body (4).

4. The filtering equipment for thermal power plants according to claim 3, characterized in that: A guide plate (10) is installed above the plurality of high-pressure nozzles (9).

5. The filtering equipment for thermal power plants according to claim 4, characterized in that: The filter screen filtering device (2) comprises a cylinder (11), a plurality of filter plates (12) are installed inside the cylinder (11), a gas delivery port (13) is provided above the plurality of filter plates (12) on one side close to the box body (4), and a gas outlet (14) is fixedly connected to one side of the box body (4) below the plurality of filter plates (12).

6. The filtering equipment for thermal power plants according to claim 5, characterized in that: The exhaust system (3) comprises an air inlet pipe (15), an air outlet pipe (16) and a fan (17); one end of the air inlet pipe (15) is fixedly connected to the exhaust port (8); the other end of the air inlet port (6) is fixedly connected to the input end of the fan (17); the output end of the fan (17) is fixedly connected to one end of the air outlet pipe (16); and the other end of the air outlet pipe (16) is fixedly connected to the air delivery port (13).

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