Thermal power generating unit denitration device

Abstract

The utility model discloses a thermal power generating unit denitration device which comprises a denitration device body and a water spraying pipe, the top end of the denitration device body is communicated with an exhaust port, the inner wall of the exhaust port is fixedly connected with a limiting bottom frame, the surface of the limiting bottom frame abuts against a placing frame, and an activated carbon bag is placed in the placing frame. And a limiting top plate is clamped at the top end of the exhaust port. Waste gas is conveyed into the denitration device body, liquid medicine is sprayed through the water spraying pipe, the waste gas can be denitrated, the containing frame can be limited and supported in the exhaust port through the limiting bottom frame, and therefore when the waste gas passes through the containing frame, part of harmful substances in the waste gas can be adsorbed through the activated carbon bag, and the waste gas is purified. And the limiting top plate can be conveniently disassembled and assembled through the limiting bolts, and the activated carbon bag can be conveniently and regularly replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas denitration, in particular to a denitration device for a thermal power unit. Background Art

[0002] A thermal power generating unit uses coal, oil or combustible gas as fuel to heat the water in the boiler to increase its temperature, and then uses steam with a certain pressure to drive a turbine to generate electricity. The flue gas from a thermal power plant contains a large amount of harmful gases and needs to be denitrified.

[0003] For example, the patent publication number is CN215506242U, a flue gas denitrification device for a thermal power plant, which belongs to the field of flue gas denitrification, including a device shell, a dust removal box is welded on one side of the device shell, the inside of the dust removal box is fixedly connected to a power box through a fixing frame, the inside of the power box is fixedly connected to a motor through a nut, and a dust filter is fixedly installed on the side of the dust removal box close to the power box. In the utility model, after the flue gas reaches the dust removal box through the air inlet, the flue gas is filtered by the dust filter, and the dust in the flue gas is left on the dust filter. After a period of time, the motor is turned on, and the motor drives the dust removal brush to rotate. The bristles on the dust removal brush will sweep the smoke accumulated on the dust filter into the dust trough below. However, when the above-mentioned denitrification device is in use, the activated carbon net is installed inside the device by bolts, resulting in the need to disassemble the device when replacing the activated carbon net later, and the internal space of the device is small, which makes replacement inconvenient. For this reason, we propose a denitrification device for a thermal power unit to solve the above problems. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a denitration device for a thermal power unit.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A denitration device for a thermal power unit comprises a denitration device body and a water spray pipe, wherein the top of the denitration device body is connected with an exhaust port, and the inner wall of the exhaust port is fixedly connected with a limited bottom frame, the surface of the limited bottom frame abuts against a placement frame, and an activated carbon bag is placed inside the placement frame, and the top of the exhaust port is engaged with a limited top plate.

[0007] Preferably, the surface size of the limiting top plate is larger than the surface size of the exhaust port, connecting side plates are fixedly connected to the lower sides of the limiting top plate, and limiting bolts are inserted into the internal threads of the connecting side plates. The limiting top plate can be easily disassembled and installed by connecting the side plates and the limiting bolts.

[0008] Preferably, the bottom end surface of the limiting top plate is fixedly connected to one end of the first connecting plate, and the other end of the first connecting plate is fixedly connected to the surface of the extrusion plate. The first connecting plate is provided with two groups to fix the extrusion plate.

[0009] Preferably, the top of the placement frame is set to be open, and the bottom surface of the placement frame is provided with multiple groups of through holes, so that the activated carbon bag can be conveniently placed through the placement frame.

[0010] Preferably, grooves are provided on both sides of the surface of the limiting bottom frame, and a push cross bar is placed inside the groove. The grooves provided on both sides of the surface of the limiting bottom frame can accommodate the function of the push cross bar.

[0011] Preferably, the bottom end of the pushing cross bar is fixedly connected to one end of the guide column, and the other end of the guide column is fixedly connected to a second connecting plate. Two groups of guide columns are symmetrically arranged below the limiting bottom frame, which can facilitate the function of pushing the two groups of pushing cross bars.

[0012] Preferably, the guide column is set to a cylindrical shape, and a circular hole compatible with the guide column is opened on the bottom surface of the limiting bottom frame. A return spring is welded between the bottom surface of the limiting bottom frame and the surface of the second connecting plate. By setting the guide column to a cylindrical shape, the friction between the limiting bottom frame and the guide column can be reduced.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The device can denitrify the exhaust gas by conveying the exhaust gas to the inside of the denitrification device body and spraying medicine through a water spray pipe, and the placement frame can be limited and supported inside the exhaust port through a limiting bottom frame, so that when the exhaust gas passes through the placement frame, the activated carbon bag can adsorb some harmful substances in the exhaust gas, reducing the pollution of the exhaust gas, and the limiting top plate can be easily disassembled and installed through the limiting bolts, so as to facilitate the regular replacement of the activated carbon bag.

[0015] 2. The device installs the limit top plate at the top of the exhaust port, so that the first connecting plate drives the extrusion plate to press against the surface of the placement frame, thereby causing the placement frame to squeeze the push cross bar. At this time, the push cross bar is retracted into the limit bottom frame, and the reset spring is in a stretched state, so that after the limit top plate is opened, the push cross bar can lift the placement frame through the elastic force of the reset spring itself, so that the limit bottom frame and the placement frame can be taken out from the exhaust port. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional schematic diagram of a denitration device for a thermal power unit proposed by the utility model;

[0017] Figure 2 for Figure 1A three-dimensional cross-sectional diagram of the main body of the denitration device and the exhaust port structure;

[0018] Figure 3 for Figure 1 A three-dimensional exploded diagram of the exhaust port and the limiting top plate structure;

[0019] Figure 4 for Figure 1 3D exploded diagram of the limiting bottom frame and placement frame structure.

[0020] In the figure: 1. Denitrification device body; 2. Water spray pipe; 3. Exhaust port; 4. Limiting bottom frame; 5. Placement frame; 6. Activated carbon bag; 7. Limiting top plate; 8. Connecting side plate; 9. Limiting bolt; 10. First connecting plate; 11. Extrusion plate; 12. Push cross bar; 13. Guide column; 14. Second connecting plate; 15. Reset spring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-4 A denitration device for a thermal power unit comprises a denitration device body 1 and a water spray pipe 2. The top of the denitration device body 1 is connected with an exhaust port 3, and the inner wall of the exhaust port 3 is fixedly connected with a limiting bottom frame 4. The surface of the limiting bottom frame 4 is in contact with a placement frame 5, and an activated carbon bag 6 is placed inside the placement frame 5. The top of the exhaust port 3 is engaged with a limiting top plate 7, and dense through holes are opened on the surface of the limiting top plate 7 to facilitate exhaust gas discharge.

[0023] Further, see Figure 2 and Figure 3 It can be known that the surface size of the limiting top plate 7 is larger than the surface size of the exhaust port 3, and connecting side plates 8 are fixedly connected to the lower sides of the limiting top plate 7, and the internal threads of the connecting side plates 8 are inserted with limiting bolts 9. The limiting bolts 9 are threadedly inserted in the connecting side plates 8, so that the limiting bolts 9 can be squeezed against the surface of the exhaust port 3, which makes it convenient for the connecting side plates 8 to drive the limiting top plate 7 to be limitedly installed.

[0024] Further, see Figure 2 and Figure 3 It can be known that the bottom surface of the limiting top plate 7 is fixedly connected to one end of the first connecting plate 10, and the other end of the first connecting plate 10 is fixedly connected to the surface of the extrusion plate 11. The first connecting plate 10 can drive the extrusion plate 11 to be pressed onto the surface of the placement frame 5, which can facilitate the function of limiting the placement frame 5.

[0025] Further, see Figure 3and Figure 4 It can be known that the top of the placing frame 5 is set to an opening shape, and a plurality of through holes are opened on the bottom surface of the placing frame 5. By setting the top of the placing frame 5 to an opening shape, the activated carbon bag 6 can be placed, and by opening a plurality of through holes on the bottom surface of the placing frame 5, the flow of exhaust gas can be facilitated.

[0026] Further, see Figure 3 and Figure 4 It can be known that grooves are provided on both sides of the surface of the limiting bottom frame 4, and a push cross bar 12 is placed inside the groove. Through the grooves provided on both sides of the surface of the limiting bottom frame 4, the push cross bar 12 can be easily accommodated in the grooves.

[0027] Further, see Figure 3 and Figure 4 It can be known that the bottom end of the push cross bar 12 is fixedly connected to one end of the guide column 13, and the other end of the guide column 13 is fixedly connected to the second connecting plate 14. The second connecting plate 14 is connected to two groups of guide columns 13 to limit the guide columns 13.

[0028] Further, see Figure 3 and Figure 4 It can be known that the guide column 13 is set to be cylindrical, and a circular hole compatible with the guide column 13 is opened on the bottom surface of the limiting bottom frame 4. A reset spring 15 is welded between the bottom surface of the limiting bottom frame 4 and the surface of the second connecting plate 14. Through the elastic force of the reset spring 15 itself, the second connecting plate 14 can drive the guide column 13 and the pushing cross bar 12 to reset, so that the pushing cross bar 12 can lift the placement frame 5.

[0029] Working principle: When the utility model is in use, when the denitration device body 1 is in use, according to the attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 and attached Figure 4, the inside of the denitration device body 1 can be sprayed through the water spray pipe 2 to facilitate the denitration of the exhaust gas. When the exhaust gas is discharged through the exhaust port 3, the activated carbon bag 6 placed inside the placement frame 5 can be filtered. When the activated carbon bag 6 is replaced, the limit top plate 7 can drive the connecting side plate 8 to separate from the surface of the exhaust port 3 by rotating the limit bolt 9. At this time, the second connecting plate 14 can drive the guide column 13 and the pushing cross bar 12 to move through the elastic force of the reset spring 15 itself. The placement frame 5 can be pushed by pushing the cross bar 12 to push the placement frame 5 and the activated carbon bag 6 out of the exhaust port 3. When After the activated carbon bag 6 is replaced, the placement frame 5 and the activated carbon bag 6 are placed in the exhaust port 3, and the push cross bar 12 is used to assist in supporting the placement frame 5. At this time, the limit top plate 7 is covered on the surface of the exhaust port 3, and the limit top plate 7 is pressed, so that the first connecting plate 10 drives the extrusion plate 11 to be pressed on the surface of the placement frame 5, so that the placement frame 5 is in conflict with the limit bottom frame 4, and the push cross bar 12 is retracted into the limit bottom frame 4, so that the reset spring 15 is in a stretched state, and at the same time, the limit bolt 9 passes through the connecting side plate 8 and is pressed against the exhaust port 3, so that the limit top plate 7 can be limitedly installed at the top of the exhaust port 3;

[0030] The above is the entire working principle of the utility model.

[0031] In the present invention, the installation method, connection method or setting method of all the components mentioned above are common mechanical methods, and the specific structures, models and coefficient indicators of all its components are its own technology. As long as it can achieve its beneficial effects, it can be implemented, so it will not be elaborated.

[0032] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

[0033] In the present utility model, unless otherwise stated, the directional words contained in the terms such as "up, down, left, right, front, back, inside, outside, vertical, horizontal" only represent the orientation of the term in normal use, or are common names understood by those skilled in the art, and should not be regarded as limitations on the term. At the same time, number series nouns such as "first", "second" and "third" do not represent specific quantities and orders, but are merely used to distinguish names. Moreover, the terms "include", "comprise" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or device.

Claims

1. A denitration device for a thermal power unit, comprising a denitration device body (1) and a water spray pipe (2), characterized in that: The top of the denitration device body (1) is connected to an exhaust port (3), and the inner wall of the exhaust port (3) is fixedly connected to a limiting bottom frame (4), the surface of the limiting bottom frame (4) is in contact with a placement frame (5), and an activated carbon bag (6) is placed inside the placement frame (5), and the top of the exhaust port (3) is engaged with a limiting top plate (7).

2. A denitration device for a thermal power unit according to claim 1, characterized in that: The surface size of the limiting top plate (7) is larger than the surface size of the exhaust port (3), and connecting side plates (8) are fixedly connected below both sides of the limiting top plate (7), and limiting bolts (9) are inserted into the internal threads of the connecting side plates (8).

3. A denitration device for a thermal power unit according to claim 1, characterized in that: The bottom end surface of the limiting top plate (7) is fixedly connected to one end of the first connecting plate (10), and the other end of the first connecting plate (10) is fixedly connected to the surface of the extrusion plate (11).

4. A denitration device for a thermal power unit according to claim 1, characterized in that: The top end of the placement frame (5) is arranged in an open shape, and the bottom end surface of the placement frame (5) is provided with a plurality of groups of through holes.

5. A denitration device for a thermal power unit according to claim 1, characterized in that: Grooves are provided on both sides of the surface of the position-limiting bottom frame (4), and a pushing cross bar (12) is placed inside the groove.

6. A denitration device for a thermal power unit according to claim 5, characterized in that: The bottom end of the pushing cross bar (12) is fixedly connected to one end of the guide column (13), and the other end of the guide column (13) is fixedly connected to a second connecting plate (14).

7. A denitration device for a thermal power unit according to claim 6, characterized in that: The guide column (13) is configured to be cylindrical, a circular hole matching the guide column (13) is provided on the bottom surface of the limiting bottom frame (4), and a return spring (15) is welded between the bottom surface of the limiting bottom frame (4) and the surface of the second connecting plate (14).

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