CN221944930U - A thermal power plant boiler flue gas waste heat energy saving device - Google Patents

Abstract

The utility model relates to a boiler flue gas waste heat energy-saving device of a thermal power plant, which comprises a waste heat energy-saving device and a filter box arranged on the waste heat energy-saving device, wherein a sealing groove is formed in the left side face of the filter box, a filter plate is placed in the filter box, a filter screen is fixedly inlaid on the top face of the filter plate, a connecting block with one end extending to the inside of the sealing groove is fixedly connected to the left side face of the filter plate, a limit groove is formed in the right side inner wall of the filter box, a limit block with one end extending to the inside of the limit groove is fixedly connected to the right side face of the filter plate, and a rubber ring is fixedly sleeved on the peripheral wall of the connecting block. This boiler flue gas waste heat economizer of thermal power plant, under the effect through stopper and spacing groove, convenient restriction to the filter, make things convenient for the staff to carry out dismouting change to the filter, improve filter effect and energy-conserving efficiency, laminating between through rubber ring and seal groove is restricted the connecting block, improves the stability of filter.

Description

A thermal power plant boiler flue gas waste heat energy saving device

Technical Field

The utility model relates to the technical field of waste heat energy saving, in particular to a waste heat energy saving device for flue gas from a boiler in a thermal power plant.

Background Art

Currently, thermal power plants mostly use coal as fuel when generating electricity. However, a large amount of heat is usually lost during the coal combustion process, resulting in a decrease in power generation efficiency. Moreover, coal fuel is a non-renewable energy source and is very precious. If we cannot improve its utilization efficiency, it will cause a certain amount of waste of coal. In the long run, it will easily lead to excessive energy consumption and aggravate damage to the natural environment.

Chinese patent authorization announcement number CN218295775U discloses a waste heat energy-saving device for boiler flue gas in a thermal power plant. The patent discloses a technical solution for convenient filtering and improving heat exchange efficiency, which solves the problem that when the existing waste heat energy-saving device is in use, impurities in the smoke will adhere to the inner wall of the exhaust pipe in the device, and will accumulate more and more, causing the exhaust pipe to exhaust smoke unsmoothly. In addition, the adhesion of coal ash will also affect the heat in the smoke to be transferred to the heat exchange pipe through the exhaust pipe, causing the heat exchange efficiency to be greatly reduced.

When the device is in use, the flue gas is filtered by the filter, but the filter is fixed inside the filter box. When the filter is damaged, it is inconvenient for the staff to disassemble and replace the filter, thereby reducing the filtering effect and the energy-saving effect. Therefore, a thermal power plant boiler flue gas waste heat energy-saving device is proposed to solve the above problems.

Utility Model Content

In view of the deficiencies in the prior art, the utility model provides a thermal power plant boiler flue gas waste heat energy-saving device, which has the advantage of convenient disassembly and assembly, and solves the problem that when the device is in use, the flue gas is filtered by the action of the filter, but the filter is fixed inside the filter box. When the filter is damaged, it is inconvenient for the staff to disassemble and replace the filter, thereby reducing the filtering effect and reducing the energy-saving effect.

To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waste heat energy-saving device for boiler flue gas in a thermal power plant, comprising a waste heat energy-saving device and a filter box arranged on the waste heat energy-saving device, a sealing groove is opened on the left side of the filter box, and a filter plate is placed inside the filter box.

The top surface of the filter plate is fixedly inlaid with a filter net, the left side surface of the filter plate is fixedly connected to a connecting block with one end extending to the inside of the sealing groove, the right inner wall of the filter box is provided with a limiting groove, the right side surface of the filter plate is fixedly connected to a limiting block with one end extending to the inside of the limiting groove, the outer peripheral wall of the connecting block is fixedly sleeved with a rubber ring, the left side surface of the filter box is provided with two placement grooves, the left inner wall of the filter box is fixedly connected to a baffle, and the left side surface of the connecting block is fixedly connected to a handle.

A fixing component is provided between the two placement grooves for fixing the connection block.

The filter box is provided with a limiting component for limiting the fixing component.

Furthermore, the top surface of the baffle is in contact with the top surface of the connecting block, and the top surface of the filter plate is in contact with the inner top wall of the filter box.

Furthermore, the limiting block and the limiting groove are in close contact with each other, and the rubber ring and the sealing groove are in close contact with each other.

Furthermore, the fixing assembly includes two telescopic rods, the two telescopic rods are respectively fixedly connected to the inside of the two placement grooves, the opposite sides of the two telescopic rods are fixedly connected to support plates, the outer peripheral walls of the two telescopic rods are respectively provided with springs fixedly connected to the placement grooves and the support plates, the opposite sides of the two support plates are fixedly connected to fixing rods, the top and bottom surfaces of the connecting block are provided with fixing holes, and the fixing rods extend to the inside of the fixing holes.

Furthermore, the two placement grooves are symmetrically distributed up and down with the sealing groove as the center, and the two fixing rods are respectively matched with the two fixing holes with clearance.

Furthermore, the telescopic rod is composed of a sleeve and a moving rod, one end of the moving rod penetrates and extends into the interior of the sleeve, the outer side of the moving rod is fixedly connected to a limiting block located inside the sleeve, and one side of the sleeve is provided with a through hole adapted to the moving rod.

Furthermore, the limiting assembly includes two slides, and the two slides are respectively fixedly connected to the right side surfaces of the two support plates. Two slide grooves are opened inside the filter box, and the two slides extend to the inside of the two slide grooves respectively. The left sides of the two support plates are fixedly connected with a pull plate with one end passing through the sealing groove and extending to the left side of the filter box.

Furthermore, the slide plate and the slide groove are slidably connected, and the slide plate and the pull plate are both L-shaped plates.

Compared with the prior art, the technical solution of this application has the following beneficial effects:

1. The thermal power plant boiler flue gas waste heat energy-saving device can conveniently limit the filter plate through the action of the limit block and the limit groove, making it convenient for the staff to disassemble and replace the filter plate, thereby improving the filtering effect and energy-saving efficiency. The connection block is limited through the fitting between the rubber ring and the sealing groove, thereby improving the stability of the filter plate;

2. The thermal power plant boiler flue gas waste heat energy-saving device fixes the connecting block through the clearance fit between the fixing rod and the fixing hole to improve the stability of the connecting block, supports the fixing rod under the action of the spring to improve the stability of the fixing rod, and at the same time, supports the support plate through the sliding connection between the slide plate and the slide groove to improve the stability of the support plate.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the structure of the utility model;

FIG2 is an enlarged schematic diagram of the structure of A in FIG1 ;

FIG3 is an enlarged schematic diagram of the structure of B in FIG1 ;

FIG. 4 is a schematic diagram of the left side of the filter box in the structure of the utility model.

In the figure: 1 waste heat energy saving device, 2 filter box, 3 filter plate, 4 connecting block, 5 baffle, 6 filter screen, 7 limit groove, 8 limit block, 9 sealing groove, 10 rubber ring, 11 slide plate, 12 slide groove, 13 placement groove, 14 telescopic rod, 15 spring, 16 pull plate, 17 support plate, 18 fixing hole, 19 handle, 20 fixing rod.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Please refer to Figures 1-4. A thermal power plant boiler flue gas waste heat energy-saving device in this embodiment includes a waste heat energy-saving device 1 and a filter box 2 arranged on the waste heat energy-saving device 1. A sealing groove 9 is opened on the left side of the filter box 2, and a filter plate 3 is placed inside the filter box 2.

A filter screen 6 is fixedly inlaid on the top surface of the filter plate 3, a connecting block 4 having one end extending to the inside of the sealing groove 9 is fixedly connected to the left side surface of the filter plate 3, a limiting groove 7 is provided on the right inner wall of the filter box 2, a limiting block 8 having one end extending to the inside of the limiting groove 7 is fixedly connected to the right side surface of the filter plate 3, a rubber ring 10 is fixedly sleeved on the outer peripheral wall of the connecting block 4, two placement grooves 13 are provided on the left side surface of the filter box 2, a baffle 5 is fixedly connected to the left inner wall of the filter box 2, and a handle 19 is fixedly connected to the left side surface of the connecting block 4.

Among them, the top surface of the baffle 5 fits with the top surface of the connecting block 4, the top surface of the filter plate 3 fits with the inner top wall of the filter box 2, the limiting block 8 fits with the limiting groove 7, and the rubber ring 10 fits tightly with the sealing groove 9.

Specifically, the filter plate 3 is held and pushed by the handle 19, and the filter plate 3 passes through the sealing groove 9 and enters the interior of the filter box 2. The limit block 8 is inserted into the interior of the limit groove 7 to limit the filter plate 3. The baffle 5 and the filter plate 3 are fitted together to support the filter plate 3, and the smoke is filtered under the action of the filter net 6.

Please refer to Figures 1-4. In this embodiment, on the basis of Example 1, a fixing component is provided between the two placement grooves 13, and the fixing component includes two telescopic rods 14. The two telescopic rods 14 are respectively fixedly connected to the inside of the two placement grooves 13, and the opposite sides of the two telescopic rods 14 are fixedly connected to support plates 17. The outer peripheral walls of the two telescopic rods 14 are respectively provided with springs 15 fixedly connected to the placement grooves 13 and the support plates 17, and the opposite sides of the two support plates 17 are fixedly connected to fixing rods 20. The top and bottom surfaces of the connecting block 4 are provided with fixing holes 18, and the fixing rods 20 extend to the inside of the fixing holes 18.

Among them, the two placement grooves 13 are symmetrically distributed up and down with the sealing groove 9 as the center, the two fixing rods 20 are respectively matched with the two fixing holes 18 with clearances, the telescopic rod 14 is composed of a sleeve and a moving rod, one end of the moving rod passes through and extends to the interior of the sleeve, the outer side of the moving rod is fixedly connected with a limiting block located inside the sleeve, and a through hole compatible with the moving rod is opened on one side of the sleeve.

Specifically, the support plate 17 moves, and the support plate 17 drives the fixing rod 20 to move, squeezing the telescopic rod 14 and the spring 15 to shrink the telescopic rod 14 and the spring 15, and the fixing rod 20 and the fixing hole 18 are located on the same center line, and the pull plate 16 is loosened, and the fixing rod 20 is pushed to reset by the elasticity of the spring 15, and the fixing rod 20 is inserted into the fixing hole 18, and the connection block 4 is fixed by the clearance fit between the fixing rod 20 and the fixing hole 18, and the filter plate 3 is fixed inside the filter box 2.

Please refer to Figures 1-4. In this embodiment, based on Example 1 and Example 2, a limit assembly is provided on the filter box 2, and the limit assembly includes two slides 11. The two slides 11 are respectively fixedly connected to the right side surfaces of the two support plates 17. Two slide grooves 12 are opened inside the filter box 2. The two slides 11 extend to the inside of the two slide grooves 12 respectively. The left sides of the two support plates 17 are fixedly connected to a pull plate 16 with one end penetrating the sealing groove 9 and extending to the left side of the filter box 2.

The slide plate 11 and the slide groove 12 are slidably connected, and the slide plate 11 and the pull plate 16 are both L-shaped plates.

Specifically, the pull plate 16 is pulled so that the pull plate 16 drives the support plate 17 to move, and the support plate 17 is supported by the sliding connection between the slide plate 11 and the slide groove 12 to improve the stability of the support plate 17.

The working principle of the above embodiment is:

Pull the pull plate 16 to make the pull plate 16 drive the support plate 17 to move, and the support plate 17 drives the fixing rod 20 to move, squeeze the telescopic rod 14 and the spring 15, and make the telescopic rod 14 and the spring 15 shrink. The support plate 17 is supported by the sliding connection between the slide plate 11 and the slide groove 12 to improve the stability of the support plate 17. The filter plate 3 is held by the handle 19 to push the filter plate 3. The filter plate 3 passes through the sealing groove 9 and enters the interior of the filter box 2. The limit block 8 is inserted into the interior of the limit groove 7 to The baffle 5 and the filter plate 3 are fitted to support the filter plate 3. The fixing rod 20 and the fixing hole 18 are located on the same center line. The pull plate 16 is loosened, and the fixing rod 20 is pushed to reset by the elasticity of the spring 15. The fixing rod 20 is inserted into the fixing hole 18. The connection block 4 is fixed by the clearance fit between the fixing rod 20 and the fixing hole 18. The filter plate 3 is fixed inside the filter box 2. The sealing groove 9 is sealed by the fit between the rubber ring 10 and the sealing groove 9. The smoke is filtered by the filter mesh 6.

It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (8)

1. A waste heat energy-saving device for boiler flue gas in a thermal power plant, comprising a waste heat energy-saving device (1) and a filter box (2) arranged on the waste heat energy-saving device (1), characterized in that: a sealing groove (9) is opened on the left side surface of the filter box (2), and a filter plate (3) is placed inside the filter box (2); The top surface of the filter plate (3) is fixedly inlaid with a filter screen (6); the left side surface of the filter plate (3) is fixedly connected to a connection block (4) whose end extends to the inside of the sealing groove (9); the right inner wall of the filter box (2) is provided with a limiting groove (7); the right side surface of the filter plate (3) is fixedly connected to a limiting block (8) whose end extends to the inside of the limiting groove (7); the outer peripheral wall of the connection block (4) is fixedly sleeved with a rubber ring (10); the left side surface of the filter box (2) is provided with two placement grooves (13); the left inner wall of the filter box (2) is fixedly connected to a baffle (5); and the left side surface of the connection block (4) is fixedly connected to a handle (19); A fixing component is provided between the two placement grooves (13), and a limiting component is provided on the filter box (2). 2. A thermal power plant boiler flue gas waste heat energy-saving device according to claim 1, characterized in that the top surface of the baffle (5) is in contact with the top surface of the connecting block (4), and the top surface of the filter plate (3) is in contact with the inner top wall of the filter box (2). 3. A thermal power plant boiler flue gas waste heat energy-saving device according to claim 2, characterized in that: the limit block (8) and the limit groove (7) are in close contact with each other, and the rubber ring (10) and the sealing groove (9) are in close contact with each other. 4. A thermal power plant boiler flue gas waste heat energy-saving device according to claim 1, characterized in that: the fixing component includes two telescopic rods (14), the two telescopic rods (14) are respectively fixedly connected to the inside of two placement grooves (13), the opposite side surfaces of the two telescopic rods (14) are fixedly connected with support plates (17), the outer peripheral walls of the two telescopic rods (14) are respectively provided with springs (15) fixedly connected to the placement grooves (13) and the support plates (17), the opposite side surfaces of the two support plates (17) are fixedly connected with fixing rods (20), the top surface and the bottom surface of the connecting block (4) are both provided with fixing holes (18), and the fixing rods (20) extend to the inside of the fixing holes (18). 5. A thermal power plant boiler flue gas waste heat energy-saving device according to claim 4, characterized in that: the two placement grooves (13) are symmetrically distributed up and down with the sealing groove (9) as the center, and the two fixing rods (20) are respectively clearance-matched with the two fixing holes (18). 6. A thermal power plant boiler flue gas waste heat energy-saving device according to claim 5, characterized in that: the telescopic rod (14) consists of a casing and a moving rod, one end of the moving rod penetrates and extends to the interior of the casing, the outer side of the moving rod is fixedly connected to a limiting block located inside the casing, and one side of the casing is provided with a through hole adapted to the moving rod. 7. A thermal power plant boiler flue gas waste heat energy-saving device according to claim 4, characterized in that: the limiting component includes two slide plates (11), the two slide plates (11) are respectively fixedly connected to the right side surfaces of two support plates (17), the interior of the filter box (2) is provided with two slide grooves (12), the two slide plates (11) respectively extend to the interior of the two slide grooves (12), and the left sides of the two support plates (17) are fixedly connected to a pull plate (16) with one end penetrating the sealing groove (9) and extending to the left side of the filter box (2). 8. A thermal power plant boiler flue gas waste heat energy-saving device according to claim 7, characterized in that the slide plate (11) and the slide groove (12) are slidably connected, and the slide plate (11) and the pull plate (16) are both L-shaped plates.