Flue gas purification device for boiler

Abstract

The flue gas purification device comprises a treatment tank, a top gas conveying seat and a bottom gas conveying seat, a filter element is arranged in the center of the interior of the treatment tank, the top end of the top gas conveying seat is movably connected with an upper movable screwing seat, and the bottom end of the bottom gas conveying seat is movably connected with a lower movable screwing seat. One end of the upper movable screwing seat and one end of the lower movable screwing seat are each provided with an air control valve, and the back faces of the air control valves are provided with communicating valves. Through the arrangement of the treatment tank, the top gas conveying seat, the bottom gas conveying seat, the filter element, the gas inlet net groove, the gas outlet grating groove, the gas guide groove and the gas guide ring cover, the equipment can perform purification operation of efficient flowing of flue gas for a boiler; a worker firstly installs the top gas transmission seat and the bottom gas transmission seat at the upper end and the lower end of the treatment tank respectively, and then the side gas inlet cover and the side gas outlet cover which are connected with the top gas transmission seat and the bottom gas transmission seat respectively can be in adaptive communication butt joint with the gas inlet net groove and the gas outlet grid groove in the side face of the treatment tank respectively.

Description

A flue gas purification device for boilers Technical Field

[0001] This utility model belongs to the technical field of boiler equipment, and specifically relates to a flue gas purification device for boilers. Background Technology

[0002] A boiler is an energy conversion device. The energy input to a boiler includes the chemical energy of fuel and electrical energy. The boiler outputs steam, high-temperature water, or organic heat carriers with a certain amount of thermal energy. The original meaning of "boiler" refers to a water-filled container heated over a fire, while "furnace" refers to the place where fuel is burned. A boiler consists of two main parts: the boiler and the furnace. The hot water or steam produced in a boiler can directly provide the heat energy needed for industrial production and people's lives. It can also be converted into mechanical energy through a steam power device, or the mechanical energy can be converted into electrical energy through a generator. Boilers that provide hot water are called hot water boilers, which are mainly used for domestic purposes, with some applications in industrial production. Boilers that produce steam are called steam boilers, often simply referred to as boilers, and are mostly used in thermal power plants, ships, locomotives, and industrial and mining enterprises.

[0003] In response, Chinese patent application number CN 211435437 U discloses a flue gas purification device for boilers, belonging to the technical field of flue gas purification devices. The device includes a housing with an air inlet on its outer side and a partition plate inside the housing, located above the air inlet and dividing the housing. This invention utilizes a pull ring to move a pull rod horizontally to the right, thereby moving a second sliding plate, a connecting rod, and a first sliding plate horizontally to the right. Simultaneously, this causes a second spring to compress to the right and a first spring to stretch to the right. The moving connecting rod stretches the filter bag. Releasing the pull ring causes the connecting rod to vibrate horizontally back and forth under the elastic force of the second and first springs, thus vibrating the filter bag. Through this reciprocating action, the dust adhering to the filter bag falls into the ash hopper, achieving high-efficiency filtration without the need for cleaning or replacing the filter bag, making it convenient and practical.

[0004] However, when this structure is used for actual boiler flue gas purification, due to its structural limitations, it can only perform unidirectional flue gas flow filtration. Its flue gas flow purification efficiency is low, and it is prone to channel blockage, affecting subsequent flow efficiency. At the same time, the equipment cannot be quickly disassembled, cleaned, or maintained, failing to meet daily usage needs. Therefore, improving and refining the above-mentioned issues is an urgent problem to be solved. Summary of the Invention

[0005] The purpose of this utility model is to provide a flue gas purification device for boilers, in order to solve the problems that existing structures, due to their own structural limitations, can only perform unidirectional flue gas flow filtration operations when used for actual boiler flue gas purification. Their flue gas flow purification efficiency is low, and channel blockage is prone to affect subsequent flow efficiency. At the same time, the equipment cannot be quickly disassembled, cleaned, and maintained as a whole, which cannot meet the needs of daily use.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a flue gas purification device for boilers, comprising a treatment tank, wherein a top gas delivery seat is provided at the top of the treatment tank, a bottom gas delivery seat is provided at the bottom of the treatment tank, and a filter element is provided at the center of the interior of the treatment tank.

[0007] The upper movable screw seat and the lower movable screw seat are provided. The top end of the top air supply seat is movably connected to the upper movable screw seat, and the bottom end of the bottom air supply seat is movably connected to the lower movable screw seat. One end of the upper movable screw seat and the lower movable screw seat is provided with an air control valve, and the back of the air control valve is provided with a connecting valve.

[0008] Preferably, the other ends of the upper movable screw seat and the lower movable screw seat are provided with screw threads, and one end of the top air supply seat and the bottom air supply seat is provided with a screw ring seat.

[0009] Preferably, the top air supply seat is provided with side air inlet hoods at the four bottom corners, and the bottom air supply seat is provided with side air outlet hoods on the four sides of its surface.

[0010] Preferably, the top air supply seat and the bottom air supply seat are offset by an insertion groove, and the inner wall of the insertion groove is provided with a fastening inner pad.

[0011] Preferably, the four corners of the side of the treatment tank are provided with air inlet mesh grooves, and the four sides of the side of the treatment tank are provided with air outlet grille grooves.

[0012] Preferably, the processing tank has an air guide groove inside, and an air guide ring cover is provided inside the air guide groove.

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

[0014] 1. This boiler flue gas purification device, through its treatment tank, top gas delivery seat, bottom gas delivery seat, filter element, inlet mesh groove, outlet grille groove, guide groove, and guide ring cover, enables the equipment to perform efficient purification of boiler flue gas. In actual use, the operator first installs the top and bottom gas delivery seats at the top and bottom ends of the treatment tank, respectively. Then, the side inlet and side outlet hoods connected to the top and bottom gas delivery seats can be adapted and connected to the inlet mesh groove and outlet grille groove on the side of the treatment tank, respectively. Normally, the top gas delivery seat diverts the incoming flue gas to the inlet mesh groove through the side inlet hood, allowing the flue gas to enter the filter element in the center of the treatment tank in a large flow evenly. After being purified by the filter element, the flue gas is discharged in a large flow from the outlet grille groove into the interior of the side outlet hood, and finally concentrates into the interior of the bottom gas delivery seat. This makes the equipment more efficient and stable in purifying boiler flue gas. The large flow design prevents internal blockage problems, reflecting the practicality of the equipment design.

[0015] 2. This boiler flue gas purification device, through the installation of an upper movable screw seat, a lower movable screw seat, a control valve, a connecting valve, screw threads, a screw ring seat, a side air inlet hood, a side air outlet hood, a plug groove, and a fixing inner gasket, further improves the overall performance of the equipment. During daily use, operators can use the screw threads at one end of the upper and lower movable screw seats to perform movable screwing operations at the screw ring seats of the top and bottom air delivery seats. This allows for quick replacement of the control valve and the connecting valve, facilitating the replacement and maintenance of the filter element inside the treatment tank. Simultaneously, the top and bottom air delivery seats can be installed movably at the top and bottom ends of the treatment tank. The side air inlet and side air outlet hoods between the top and bottom air delivery seats are stably positioned and fixed using the fixing inner gasket on the inner wall of the plug groove, ensuring stability after connection and demonstrating the comprehensiveness of the equipment design. Attached Figure Description

[0016] Figure 1 is a three-dimensional schematic diagram of the structure of this utility model;

[0017] Figure 2 is an overall schematic diagram of the processing tank structure of this utility model;

[0018] Figure 3 is an overall schematic diagram of the movable screw seat structure of this utility model;

[0019] Figure 4 is an enlarged schematic diagram of the structure at point A in Figure 1 of this utility model.

[0020] In the diagram: 1. Processing tank; 2. Top gas inlet seat; 3. Bottom gas inlet seat; 4. Filter element; 5. Upper movable screw seat; 6. Lower movable screw seat; 7. Control valve; 8. Connecting valve; 9. Screw thread; 10. Screw ring seat; 11. Side air inlet hood; 12. Side air outlet hood; 13. Insert groove; 14. Fastening inner gasket; 15. Air inlet mesh groove; 16. Air outlet grille groove; 17. Air guide groove; 18. Air guide ring cover. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This utility model provides a boiler flue gas purification device as shown in the figure, including a treatment tank 1, a top gas delivery seat 2 at the top of the treatment tank 1, a bottom gas delivery seat 3 at the bottom of the treatment tank 1, a filter element 4 at the center of the interior of the treatment tank, air inlet mesh grooves 15 at the four corners of the side of the treatment tank 1, and air outlet grille grooves 16 on the four sides of the side of the treatment tank 1. An air guide groove 17 is opened inside the treatment tank 1, and an air guide ring shroud 18 is set inside the air guide groove 17. The top gas delivery seat 2 diverts the incoming flue gas to the air inlet mesh groove 15 through the side air inlet shroud 11, so that the flue gas enters the filter element 4 at the center of the interior of the treatment tank 1 in a large flow evenly. After being purified by the filter element 4, the flue gas is discharged into the interior of the side air outlet shroud 12 in a large flow from the air outlet grille groove 16, and finally enters the interior of the bottom gas delivery seat 3.

[0023] Upper movable screw seat 5 and lower movable screw seat 6 are movably connected to the top of the top air supply seat 2, and lower movable screw seat 6 is movably connected to the bottom of the bottom air supply seat 3. One end of both the upper and lower movable screw seats 5 and 6 is equipped with an air control valve 7, and a connecting valve 8 is provided on the back of the air control valve 7. The other end of both the upper and lower movable screw seats 5 and 6 is equipped with a screw thread 9. One end of both the top and bottom air supply seats 2 and 3 is equipped with a screw ring seat 10. The bottom four corners of the top air supply seat 2... A side air inlet hood 11 is provided, and a side air outlet hood 12 is provided on the four sides of the surface of the bottom air supply seat 3. A plug-in groove 13 is provided between the top air supply seat 2 and the bottom air supply seat 3 at an offset. A fastening inner pad 14 is provided on the inner wall of the plug-in groove 13. The upper movable screw seat 5 and the lower movable screw seat 6 are screwed together at the screw-in ring seat 10 of the top air supply seat 2 and the bottom air supply seat 3 through the screw-in thread 9 at one end of each of them. This allows the air control valve 7 and the connecting valve 8 to be quickly replaced and used.

[0024] Working Principle: First, the operator installs the top gas conveying seat 2 and the bottom gas conveying seat 3 at the upper and lower ends of the treatment tank 1, respectively. Then, the side air inlet hood 11 and side air outlet hood 12 connected to the top gas conveying seat 2 and the bottom gas conveying seat 3 can be adapted and connected to the air inlet mesh groove 15 and the air outlet grille groove 16 on the side of the treatment tank 1, respectively. Normally, the top gas conveying seat 2 diverts the incoming flue gas through the side air inlet hood 11 to the air inlet mesh groove 15, allowing the flue gas to enter the filter element 4 in the center of the treatment tank 1 in a large flow evenly. After purification by the filter element 4, the flue gas is then discharged in a large flow from the air outlet grille groove 16 into the interior of the side air outlet hood 12, and finally concentrates into the interior of the bottom gas conveying seat 3. This makes the equipment more efficient and stable in purifying boiler flue gas. The design of the volume will not cause internal blockage problems. During daily use, the staff can make the upper movable screw seat 5 and the lower movable screw seat 6 movable screwing operation through the screwing thread 9 at one end of each, and make the screwing operation at the screwing ring seat 10 of the top air supply seat 2 and the bottom air supply seat 3. This allows the control valve 7 and the connecting valve 8 to be quickly replaced and used, which is convenient for the replacement and maintenance of the filter element 4 inside the treatment tank 1. At the same time, the top air supply seat 2 and the bottom air supply seat 3 can also be movable and installed at the upper and lower ends of the treatment tank 1. The side air inlet cover 11 and the side air outlet cover 12 between the top air supply seat 2 and the bottom air supply seat 3 are stably positioned and fixed by the fastening inner gasket 14 on the inner wall of the insertion groove 13, ensuring the stability of the connection.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flue gas purification device for boilers, comprising a treatment tank (1), characterized in that: The top of the treatment tank (1) is provided with a top air supply seat (2), the bottom of the treatment tank (1) is provided with a bottom air supply seat (3), and a filter element (4) is provided in the center of the interior of the treatment tank (1); an upper movable screw seat (5) and a lower movable screw seat (6) are provided, the top of the top air supply seat (2) is movably connected to the upper movable screw seat (5), the bottom of the bottom air supply seat (3) is movably connected to the lower movable screw seat (6), and a control valve (7) is provided at one end of both the upper movable screw seat (5) and the lower movable screw seat (6), and a connecting valve (8) is provided on the back of the control valve (7).

2. The boiler flue gas purification device according to claim 1, characterized in that: The other ends of the upper movable screw seat (5) and the lower movable screw seat (6) are provided with screw threads (9), and one end of the top air supply seat (2) and the bottom air supply seat (3) is provided with a screw ring seat (10).

3. The boiler flue gas purification device according to claim 1, characterized in that: The top air supply seat (2) is provided with side air inlet hoods (11) at the four bottom corners, and the bottom air supply seat (3) is provided with side air outlet hoods (12) on the four sides of its surface.

4. The boiler flue gas purification device according to claim 1, characterized in that: The top air supply seat (2) and the bottom air supply seat (3) are offset and have a plug groove (13), and the inner wall of the plug groove (13) is provided with a fastening inner pad (14).

5. A boiler flue gas purification device according to claim 1, characterized in that: The processing tank (1) has an air inlet mesh groove (15) at the four corners of its side and an air outlet grille groove (16) on its four sides.

6. The boiler flue gas purification device according to claim 1, characterized in that: The processing tank (1) has an air guide groove (17) inside, and an air guide ring cover (18) is provided inside the air guide groove (17).

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