Boiler hearth capable of preventing high-temperature corrosion

Abstract

The utility model discloses a high-temperature corrosion prevention type boiler furnace which comprises a furnace main body, a first protection assembly is arranged on the inner wall of the furnace main body, an auxiliary assembly is installed on the first protection assembly, a second protection assembly is installed on the inner wall of the furnace main body, and a processing assembly is arranged above the furnace main body. The temperature of the boiler furnace cannot be controlled during actual use, the situation that the boiler furnace is damaged due to the high temperature is reduced, sediments accumulated on the inner wall of the boiler furnace can be cleaned, meanwhile, a treatment assembly is arranged on a furnace body, and the boiler furnace can be used for treating the sediments. According to the boiler hearth, gas exhausted by the boiler hearth can be filtered in an auxiliary mode, corrosive substances in the exhausted gas are reduced, heat in the filtered gas can be collected and conveyed into the hearth, and meanwhile an additional protection layer can be conveniently provided for the boiler hearth through the second protection assembly arranged on the hearth body.

Description

Technical Field

[0001] This utility model relates to the field of boiler furnace technology, specifically to a boiler furnace resistant to high temperature corrosion. Background Technology

[0002] The furnace is a three-dimensional space surrounded by furnace walls for fuel combustion. The function of the furnace is to ensure that the fuel is burned as completely as possible and to cool the flue gas temperature at the furnace outlet to the temperature that allows the convective heating surface to operate safely. In order to reduce the problems of high temperature and corrosion in boiler furnaces, a high-temperature corrosion resistant boiler furnace is proposed.

[0003] However, the boiler furnace cannot control its temperature during actual use, which can easily damage the furnace when the temperature is too high. In addition, the boiler furnace cannot collect and reuse the heat from the exhaust gas, which can easily lead to resource waste. Utility Model Content

[0004] In view of the problems in related technologies, this utility model proposes a high-temperature corrosion resistant boiler furnace to overcome the above-mentioned technical problems existing in the existing related technologies.

[0005] Therefore, the specific technical solution adopted by this utility model is as follows:

[0006] A high-temperature corrosion resistant boiler furnace includes a furnace body. The inner wall of the furnace body is provided with a protective component 1. An auxiliary component is installed on the protective component 1. The auxiliary component includes a cooling auxiliary pipe installed on the protective component 1. One end of the cooling auxiliary pipe is connected to a vortex pipe. One end of the vortex pipe is connected to a heating auxiliary pipe. One end of the heating auxiliary pipe is connected to a blowing pipe. One end of the blowing pipe is connected to a blowing head. One end of the blowing head penetrates through the furnace body.

[0007] The inner wall of the furnace body is equipped with a second protective component. A processing component is set above the furnace body. The processing component includes a processing pipe that runs through the upper part of the furnace body. One end of the processing pipe is connected to a processing box. The lower part of the processing box is connected to the upper part of the furnace body. Activated carbon plates, high-temperature ceramic membrane plates, and zeolite filter plates are installed on the inner wall of the processing box. A conveying pump is set on one side of the processing box. One end of the conveying pump is connected to a conveying pipe. The other end of the conveying pipe is connected to an air blowing pipe.

[0008] Furthermore, in order to reduce the risk of damage to the furnace due to high temperatures, the protective component includes a cooling pipe installed on the inner wall of the furnace body. One end of the cooling pipe passes through the furnace body and is connected to a cooling box, while the other end of the cooling pipe passes through the furnace body and is connected to a circulating pump. One side of the cooling box is connected to one end of the circulating pump, and the cooling box and the cooling auxiliary pipe pass through each other.

[0009] Furthermore, in order to improve the high temperature resistance, corrosion resistance and oxidation resistance of the inner wall of the furnace, the second protective component includes a protective cylinder fixedly installed on the inner wall of the main furnace body. The surface of the protective cylinder is in contact with the cooling pipe and the surface of the protective cylinder penetrates the air blowing head. The inner wall surface of the protective cylinder is sequentially provided with a high temperature resistant coating, a corrosion resistant coating and an oxidation resistant coating.

[0010] Furthermore, openings are provided on the treatment box, the furnace body, and the protective cylinder. A cover is hinged to the inner wall of the opening between the treatment box and the furnace body, and a latch is fixedly connected to the treatment box and the furnace body.

[0011] Furthermore, in order to replenish the coolant in the cooling box, a filling pipe is provided on one side of the cooling box, and one end of the filling pipe is connected to a sealing cap.

[0012] Furthermore, in order to assist in cooling the furnace body, one end of the cooling auxiliary pipe is connected to an air blowing hood, and multiple fixing plates are fixedly connected to the air blowing hood. One end of the fixing plates is fixedly connected to the outside of the furnace body.

[0013] Furthermore, insulation sleeves are provided on the surfaces of the conveying pipe, processing pipe, heating auxiliary pipe, and cooling auxiliary pipe, and the insulation sleeves are compatible with the conveying pipe, processing pipe, heating auxiliary pipe, and cooling auxiliary pipe.

[0014] The beneficial effects of this utility model are:

[0015] (1) By setting auxiliary components in the protection component, the boiler furnace temperature can be controlled during actual use, reducing the possibility of damage caused by high temperature. It can also clean the deposits accumulated on the inner wall of the boiler furnace, keeping the furnace clean. At the same time, the treatment components set in the main body of the furnace can not only assist in filtering the gas discharged from the boiler furnace, reducing the corrosive substances in the discharged gas, but also collect the heat in the filtered gas and transport it into the furnace, reducing the corrosion of the inner wall of the boiler furnace.

[0016] (2) The protective component 1 installed in the main body of the furnace can provide auxiliary cooling treatment for the boiler furnace, reducing the possibility of damage to the boiler furnace when the temperature is high. At the same time, the protective component 2 installed in the main body of the furnace can provide an additional protective layer for the boiler furnace, enhancing its ability to resist high temperature and chemical corrosion. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a high-temperature corrosion resistant boiler furnace according to an embodiment of the present invention. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of a high-temperature corrosion resistant boiler furnace according to an embodiment of the present invention. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the structure of a protective component and auxiliary components for a high-temperature corrosion resistant boiler furnace according to an embodiment of the present utility model;

[0021] Figure 4 This is a schematic diagram of a protective component two for a high-temperature corrosion resistant boiler furnace according to an embodiment of the present utility model;

[0022] Figure 5 This is a schematic diagram of the treatment component structure of a high-temperature corrosion resistant boiler furnace according to an embodiment of the present utility model;

[0023] Figure 6 This is a schematic diagram of a heat insulation sleeve structure for a high-temperature corrosion resistant boiler furnace according to an embodiment of the present utility model.

[0024] Figure label:

[0025] 1. Furnace body; 2. Protective component one; 201. Cooling pipe; 202. Cooling box; 203. Circulating pump; 3. Auxiliary components; 301. Cooling auxiliary pipe; 302. Vortex tube; 303. Heating auxiliary pipe; 304. Air blowing pipe; 305. Air blowing head; 4. Protective component two; 401. Protective cylinder; 402. High temperature resistant coating; 403. Corrosion resistant coating; 404. Antioxidant coating; 5. Processing components; 501. Processing pipe; 502. Processing box; 503. Activated carbon plate; 504. High temperature ceramic membrane plate; 505. Zeolite filter plate; 506. Conveying pump; 507. Conveying pipe; 6. Shielding cover; 7. Locking buckle; 8. Filling pipe; 9. Sealing cover; 10. Air blowing hood; 11. Fixing plate; 12. Insulation sleeve. Detailed Implementation

[0026] 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.

[0027] Example 1:

[0028] Please see Figures 1-6 A high-temperature corrosion resistant boiler furnace includes a furnace body 1, which consists of a boiler, a furnace cavity, and an igniter. The combustion space within the furnace body is used to hold fuel (coal or other types of coal). Multiple support columns (three in total) are installed below the furnace body 1 to provide auxiliary support. A protective component 2 is installed on the inner wall of the furnace body 1. The protective component 2 includes a cooling pipe 201 installed on the inner wall of the furnace body 1 to assist in cooling the boiler furnace and reduce the risk of damage due to high temperatures. One end of the cooling pipe 201 penetrates the furnace body 1 and is connected to a cooling box 202. A filling pipe 8 is installed on one side of the cooling box 202 to replenish the coolant. One end of the filling pipe 8 is connected to a sealing cap 9. The other end of the cooling pipe 201 penetrates the furnace body 1 and is connected to a circulating pump 203 to circulate the coolant in the cooling box 202, which helps to cool the coolant and, consequently, the boiler furnace.

[0029] One side of the cooling box 202 is connected to one end of the circulating pump 203. One end of the cooling auxiliary pipe 301 is connected to the air blowing hood 10, which is used to provide auxiliary cooling to the outside of the boiler furnace. Multiple fixing plates 11 are fixedly connected to the air blowing hood 10 to improve the stability of the air blowing hood 10. There are two fixing plates 11, and one end of the fixing plate 11 is fixedly connected to the outside of the furnace body 1.

[0030] An auxiliary component 3 is installed on the protective component 2. The auxiliary component 3 includes a cooling auxiliary pipe 301 installed on the protective component 2, which is used to cool the coolant in the cooling box 202, which is beneficial for cooling the boiler furnace. The cooling box 202 is penetrated by the cooling auxiliary pipe 301. One end of the cooling auxiliary pipe 301 is connected to a vortex tube 302, which uses the principle of gas dynamics to separate heat and divide the compressed gas into two streams: one stream flows through one end (cold end) of the vortex tube 302 for cooling, and the other stream flows to the other end (hot end) of the vortex tube 302 for heating, which is beneficial for controlling the temperature of the boiler furnace. A temperature sensor (not shown in the figure) is electrically connected in actual use. One end of the vortex tube 302 is connected to a heating auxiliary tube 303, and the other end of the heating auxiliary tube 303 is connected to a blowing tube 304. The blowing tube 304 is equipped with an air inlet pipe (not shown in the figure) for auxiliary oxygen delivery. Control valves (not shown in the figure) are installed at both ends of the air inlet pipe. An oxygen pipe (not shown in the figure) is installed at one end of the control valve. One end of the blowing tube 304 is connected to a blowing head 305 for delivering gas to assist the fuel placed in the furnace body 1 in heat dissipation and to clean impurities or dust attached to the furnace body 1. One end of the blowing head 305 penetrates the furnace body 1. The air inlet end of the vortex tube 302 is equipped with a compressed gas delivery pipe and a gas compression device (not shown in the figure).

[0031] Example 2:

[0032] Please see Figures 1-6 A high-temperature corrosion resistant boiler furnace is provided. The inner wall of the furnace body 1 is equipped with a second protective component 4. The second protective component 4 includes a protective cylinder 401 fixedly installed on the inner wall of the furnace body 1, which is used to protect the boiler furnace and reduce damage to the inner wall of the boiler furnace. The surface of the protective cylinder 401 is in contact with the cooling pipe 201 and penetrates the air blowing head 305. The inner wall surface of the protective cylinder 401 is sequentially provided with a high-temperature resistant coating 402, a corrosion resistant coating 403, and an anti-oxidation coating 404 to improve the high-temperature resistance, corrosion resistance, and oxidation resistance of the protective cylinder 401.

[0033] A processing assembly 5 is provided above the furnace body 1. The processing assembly 5 includes a processing pipe 501 that runs through the furnace body 1 to discharge the gas after fuel combustion. One end of the processing pipe 501 is connected to a processing box 502. The lower part of the processing box 502 is connected to the upper part of the furnace body 1. An activated carbon plate 503, a high-temperature ceramic membrane plate 504, and a zeolite filter plate 505 are respectively installed on the inner wall of the processing box 502 to filter harmful substances contained in the combustion gas. A delivery pump 506 is provided on one side of the processing box 502 to deliver the filtered hot gas into the furnace body 1 to reduce energy consumption. One end of the delivery pump 506 is connected to a delivery pipe 507 to deliver the filtered gas. One end of the delivery pipe 507 is connected to a blowing pipe 304.

[0034] The delivery pump 506, circulation pump 203, vortex tube 302, and temperature sensor are electrically connected to a controller in actual use. The controller, delivery pump 506, vortex tube 302, temperature sensor, and circulation pump 203 are electrically connected to an external power supply.

[0035] The processing box 502 has openings on the furnace body 1 and the protective cylinder 401. The openings of the processing box 502 are used to further maintain the activated carbon plate 503, the high-temperature ceramic membrane plate 504 and the zeolite filter plate 505. The openings of the furnace body 1 and the protective cylinder 401 are used to facilitate the placement of fuel by the staff. The inner wall of the opening of the processing box 502 and the furnace body 1 is hinged with a cover 6 to help block impurities or dust generated during combustion. The cover 6 is fixedly connected to the processing box 502 and the furnace body 1 with a latch 7 to help fix the cover 6 and improve the sealing performance.

[0036] Insulation sleeves 12 are provided on the surfaces of the conveying pipe 507, the processing pipe 501, the heating auxiliary pipe 303, and the cooling auxiliary pipe 301 to maintain the temperature of the fluid conveyed by the conveying pipe 507, the processing pipe 501, the heating auxiliary pipe 303, and the cooling auxiliary pipe 301, thereby reducing energy consumption. The insulation sleeves 12 are compatible with the conveying pipe 507, the processing pipe 501, the heating auxiliary pipe 303, and the cooling auxiliary pipe 301.

[0037] During use, the operator places and ignites the fuel through the opening between the furnace body 1 and the protective cylinder 401. After placement, the cover 6 is secured by the latch 7. Then, the air inlet pipe 304, in coordination with the control valve and oxygen pipe, facilitates the delivery of combustion-supporting oxygen to the air blowing head 305 and the furnace body 1, aiding in the combustion of the placed fuel. Simultaneously, impurities or dust adhering to the protective cylinder 401 after combustion are dislodged by the gas blown out of the air blowing head 305. During combustion, the fuel... The protective sleeve 401, along with the high-temperature resistant coating 402, corrosion-resistant coating 403, and anti-oxidation coating 404, provided by the furnace body 1, facilitates the provision of an additional protective layer for the boiler furnace, enhancing its resistance to high temperatures and chemical corrosion. When the temperature is extremely high, the cooling pipes 201, cooling boxes 202, and circulating pump 203 in the furnace body 1 work together to transport the coolant from the cooling box 202 to the cooling pipes 201 inside the furnace body 1. The cooled coolant is then transported back to the cooling box 202 by the circulating pump 203, and then through the vortex tube... 302 converts compressed gas into hot and cold gas. The cold gas is transported through cooling auxiliary pipe 301, which not only cools the coolant in cooling box 202 but also assists in cooling the exterior of the boiler furnace by being transported to air blowing hood 10. The hot gas is transported through heating auxiliary pipe 303 to air blowing pipe 304, air blowing head 305, and the interior of the furnace body 1, which can control the temperature of the boiler furnace and reduce the risk of damage due to high temperature in the boiler furnace. The gas adheres to the protective cylinder 401. Impurities or dust in the fuel also fall off with the gas blown out by the air blown head 305. At the same time, the treatment pipe 501 set in the furnace body 1 can transport the gas discharged from the boiler furnace to the treatment box 502 and perform auxiliary filtration with the fine steel activated carbon plate 503, high temperature ceramic membrane plate 504 and zeolite filter plate 505 to reduce corrosive substances in the discharged gas. It can also collect the heat in the filtered gas and transport it into the furnace body 1 to reduce the corrosion of the inner wall of the boiler furnace. The filtered gas is then transported to the air blown pipe 304.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 boiler furnace resistant to high-temperature corrosion, characterized in that, The furnace body (1) includes a protective component (2) on its inner wall. An auxiliary component (3) is installed on the protective component (2). The auxiliary component (3) includes a cooling auxiliary pipe (301) installed on the protective component (2). One end of the cooling auxiliary pipe (301) is connected to a vortex pipe (302). One end of the vortex pipe (302) is connected to a heating auxiliary pipe (303). One end of the heating auxiliary pipe (303) is connected to a blowing pipe (304). One end of the blowing pipe (304) is connected to a blowing head (305). One end of the blowing head (305) penetrates the furnace body (1). The inner wall of the furnace body (1) is equipped with a protective component 2 (4). A processing component (5) is provided above the furnace body (1). The processing component (5) includes a processing pipe (501) that passes through the upper part of the furnace body (1). One end of the processing pipe (501) is connected to a processing box (502). The lower part of the processing box (502) is connected to the upper part of the furnace body (1). An activated carbon plate (503), a high-temperature ceramic membrane plate (504), and a zeolite filter plate (505) are respectively installed on the inner wall of the processing box (502). A delivery pump (506) is provided on one side of the processing box (502). One end of the delivery pump (506) is connected to a delivery pipe (507). One end of the delivery pipe (507) is connected to an air blowing pipe (304).

2. The high-temperature corrosion resistant boiler furnace according to claim 1, characterized in that, The protective component 1 (2) includes a cooling pipe (201) installed on the inner wall of the furnace body (1). One end of the cooling pipe (201) passes through the furnace body (1) and is connected to a cooling box (202). The other end of the cooling pipe (201) passes through the furnace body (1) and is connected to a circulating pump (203). One side of the cooling box (202) is connected to one end of the circulating pump (203). The cooling box (202) passes through a cooling auxiliary pipe (301).

3. The high-temperature corrosion resistant boiler furnace according to claim 2, characterized in that, The second protective component (4) includes a protective cylinder (401) fixedly installed on the inner wall of the furnace body (1). The surface of the protective cylinder (401) is in contact with the cooling pipe (201), and the surface of the protective cylinder (401) penetrates the air blowing head (305). The inner wall surface of the protective cylinder (401) is sequentially provided with a high temperature resistant coating (402), a corrosion resistant coating (403), and an anti-oxidation coating (404).

4. A high-temperature corrosion resistant boiler furnace according to claim 3, characterized in that, The processing box (502) and the furnace body (1) and the protective cylinder (401) have openings. The inner wall of the opening of the processing box (502) and the furnace body (1) is hinged with a cover (6). The cover (6) is fixedly connected to the processing box (502) and the furnace body (1) with a latch (7).

5. A high-temperature corrosion resistant boiler furnace according to claim 2, characterized in that, A filling pipe (8) is provided on one side of the cooling box (202), and a sealing cap (9) is connected to one end of the filling pipe (8).

6. A high-temperature corrosion resistant boiler furnace according to claim 1, characterized in that, One end of the cooling auxiliary pipe (301) is connected to an air blowing hood (10), and multiple fixing plates (11) are fixedly connected to the air blowing hood (10). One end of the fixing plate (11) is fixedly connected to the outside of the furnace body (1).

7. A high-temperature corrosion resistant boiler furnace according to claim 1, characterized in that, The surface of the conveying pipe (507), the processing pipe (501), the heating auxiliary pipe (303), and the cooling auxiliary pipe (301) is provided with a heat insulation sleeve (12), which is compatible with the conveying pipe (507), the processing pipe (501), the heating auxiliary pipe (303), and the cooling auxiliary pipe (301).

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