High-temperature flue gas non-contact cooling and purifying equipment

Abstract

The invention provides high-temperature flue gas non-contact cooling and purifying equipment. The high-temperature flue gas non-contact cooling and purifying equipment comprises an upper box body, a middle box body and a lower box body, the side wall of the upper box body is provided with a flue gas inlet, the middle box body is a cooling section, and the lower box body is respectively provided with a flue gas outlet and a pollution discharge outlet; an air cooling inlet filtering device, an air cooling outlet cooling device, a multi-pipe heat exchange device and a water cooling device are sequentially arranged on the middle box body cooling section from top to bottom; the high-temperature flue gas is cooled and condensed in the cooling treatment process of the cooling section after entering through the flue gas inlet of the equipment, so that not only can the high-temperature flue gas be cooled, but also a high-purity liquefied product generated after the flue gas is condensed is effectively recovered, and the recovery utilization rate of the flue gas is improved. The technology provided by the invention effectively solves the problem of secondary pollution of water caused by direct contact of a water source and high-temperature flue gas in traditional wet washing cooling, and meanwhile, the water consumption is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of high-temperature flue gas cooling, and in particular to a high-temperature flue gas contactless cooling and purification device. Background Art

[0002] Existing high-temperature flue gas cooling methods generally rely on direct contact heat exchange, using scrubbers, spray towers, cyclone towers, and other cooling methods. Their common characteristic is that they directly contact the high-temperature flue gas with water, utilizing the specific heat capacity of water to absorb heat from the hot flue gas to achieve the cooling effect. When the flue gas is generated by heat sources such as fruit wood, coal, and biomass pellets, it carries pollutants such as sulfur, dust, and oil smoke. When these pollutants come into direct contact with water, they mix with it and pollute the water. Furthermore, the operability and limited size of traditional scrubbers make the contact process inefficient, making them unable to meet large-scale cooling needs.

[0003] The direct contact cooling method requires a large amount of water consumption and replenishment, has low treatment efficiency, is prone to secondary pollution of water, and cannot meet sustainable requirements. Therefore, we propose a high-temperature flue gas contactless cooling and purification equipment. Summary of the Invention

[0004] In order to solve the defects of the prior art, the present invention provides a high-temperature flue gas contactless cooling and purification device.

[0005] In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions: The present invention provides a high-temperature flue gas contactless cooling and purification device, comprising an upper box body, a high-temperature flue gas inlet is provided on one side of the upper box body, the bottom of the upper box body is connected to the middle box body, the upper box body and the middle box body are connected in a flange connection manner, a top flower plate and a bottom flower plate are provided in the middle box body, the top flower plate and the bottom flower plate are evenly opened, the size of the opening is consistent with the outermost size of the seamless hollow steel pipe, ensuring that the seamless hollow steel pipe passes through the top flower plate and the bottom flower plate according to the opening position, and at the same time, the seamless hollow steel pipe and the top flower plate and the bottom flower plate are seamlessly welded, and then the welded top flower plate, the seamless hollow steel pipe and the bottom flower plate are fully welded to the interior of the middle box body, a water inlet is provided on one side of the middle box body, and the water inlet The water inlet is a layered structure, and a water outlet is provided on the other side of the middle box body. The horizontal position of the water outlet is higher than the water inlet, and the size of the water outlet is larger than the water inlet. A drain outlet is provided at the bottom of one side of the middle box body, and a drain ball valve is provided at the drain outlet. An air inlet is provided at the top of one side of the middle box body, and an air outlet is provided on the opposite side of the air inlet. The air inlet and the air outlet are of the same size. The bottom of the middle box body is connected to the lower box body, and the middle box body and the lower box body are connected by flange connection. A low-temperature flue gas outlet is provided on one side of the lower box body, and the high-temperature flue gas inlet of the upper box body is of the same size as the low-temperature flue gas outlet. A sewage outlet is provided at the bottom of one side of the lower box body, and a sewage ball valve is provided at the sewage outlet. The overall equipment is supported by a welded bracket after assembly.

[0006] As a preferred technical solution of the present invention, the position of the high-temperature flue gas inlet opening on one side of the upper box body is the center point of one side, and the size of the high-temperature flue gas inlet opening on one side of the upper box body needs to be smaller than 1 / 2 of the shortest dimension of the length, width, height and height of one side of the upper box body. The upper box body, the middle box body and the lower box body are all flange-connected.

[0007] As a preferred technical solution of the present invention, the water inlet on one side of the middle box body is a layered structure with three water inlet positions. A water outlet is provided on the other side of the water inlet. The horizontal position of the water outlet is higher than the highest position of the water inlet. The size of the water outlet is more than 3 times the size of the water inlet. A drain outlet is provided at the bottom of one side of the middle box body, and a drainage ball valve is provided at the drain outlet.

[0008] As a preferred technical solution of the present invention, the middle box body is provided with a top flower plate and a bottom flower plate with openings and penetrated by a seamless hollow steel pipe according to the position of the openings. The top flower plate and the bottom flower plate are seamlessly welded at the connection with the seamless hollow steel pipe. The position of the seamless hollow steel pipe and the top flower plate and the bottom flower plate when seamlessly welded should retain a distance of not less than 10 mm relative to the two ends of the seamless hollow steel pipe. The top flower plate and the bottom flower plate are both seamlessly welded to the inside of the middle box body.

[0009] As a preferred technical solution of the present invention, an air inlet is provided on one side of the middle box body, and an air outlet is provided on the opposite side of the air inlet position. The horizontal positions of the air inlet and the air outlet openings are higher than the highest horizontal position of the water outlet, and the opening size of the air inlet and the air outlet is greater than or equal to 1 / 2 of the openable position of the middle box body.

[0010] As an optimal technical solution of the present invention, a drain outlet is provided at the bottom of one side of the middle box body, and the drain outlet is provided with a drain ball valve. A low-temperature flue gas outlet is provided on one side of the lower box body, and the low-temperature flue gas outlet is consistent in size with the high-temperature flue gas inlet. A sewage outlet is provided at the bottom of one side of the lower box body, and the sewage outlet is provided with a sewage ball valve.

[0011] As an optimal technical solution of the present invention, high-temperature flue gas enters the high-temperature flue gas buffer chamber through the high-temperature flue gas inlet, and then enters the seamless hollow steel pipe in the middle box after being buffered by the high-temperature flue gas buffer chamber to complete the flue gas cooling process, and finally passes through the low-temperature flue gas buffer chamber and is discharged from the low-temperature flue gas outlet. The entire process of high-temperature flue gas when passing through the equipment of the present invention is "the high-temperature flue gas inlet-the high-temperature flue gas buffer chamber-the internal channel of the seamless hollow steel pipe-the low-temperature flue gas buffer chamber-the low-temperature flue gas outlet". The entire process does not contact water and air and is carried out completely in a closed space.

[0012] As a preferred technical solution of the present invention, when the high-temperature flue gas contains high-concentration recyclable substances, cooling and condensation will occur after entering the equipment, thereby producing a combination of the high-concentration recyclable substances. When the concentration reaches a certain level, the possibility of extracting the high-concentration recyclable substances is greatly increased, thereby further recycling and sustainable utilization.

[0013] The beneficial effects of the present invention are: (1) The present invention cools the internal high-temperature gas in multiple ways through the upper box high-temperature gas buffer chamber, the middle box cooling device and the lower box low-temperature gas buffer chamber; (2) The present invention does not come into contact with water or air during the high-temperature flue gas cooling and purification process, resulting in no secondary pollution and being more environmentally friendly than the traditional direct contact cooling method; (3) The present invention uses natural wind and water during operation, which is cleaner energy, and the loss is natural volatilization, which is more energy-saving; (4) The present invention is respectively provided with a drain valve and a sewage valve at the upper box body, the middle box body and the lower box body, and the upper box body, the middle box body and the lower box body are flange-jointed, which is more convenient for disassembly and maintenance; In summary, the present invention has a high promotion significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 This is a perspective view of the present invention, viewed from the right at 45°, of a high-temperature flue gas contactless cooling and purification device; Figure 2 This is a perspective view of the present invention, viewed from the left at 45°, of a high-temperature flue gas contactless cooling and purification device; Figure 3 This is a perspective view of the high-temperature flue gas contactless cooling and purification device of the present invention viewed from the left at 45°; Figure 4 This is a schematic structural diagram of the high-temperature flue gas contactless cooling and purification equipment of the present invention; Figure 5 It is a structural schematic diagram of the cooling mechanism inside the box in the present invention.

[0015] In the figure: 1. Upper box body; 2. Middle box body; 3. Lower box body; 4. Bracket; 5. High-temperature flue gas inlet; 6. Water inlet; 7. Low-temperature flue gas outlet; 8. Air inlet; 9. Water outlet; 10. Air outlet; 11. Drain outlet; 12. Sewage outlet; 13. Drain ball valve; 14. Sewage ball valve; 15. High-temperature flue gas buffer chamber; 16. Low-temperature flue gas buffer chamber; 17. Seamless hollow steel pipe; 18. Top flower plate; 19. Bottom flower plate.

[0016] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0017] Example: Figure 1 As shown, a high-temperature flue gas contactless cooling and purification device. It is mainly composed of an upper box body 1, a middle box body 2, a lower box body 3 and a bracket 4. The high-temperature flue gas inlet 5 is connected to one side of the upper box body 1. The upper box body 1 is connected to the middle box body 2 with a flange, and the middle box body 2 and the lower box body 3 are connected with a flange. The whole device is supported by the bracket 4. A water inlet 6 is provided on one side of the middle box body 2. The water inlet 6 has a total of 3 water inlet positions at the position of the middle box body 2, and the middle box body 2 is divided into a multi-layer water inlet structure. At the same time, an air inlet 8 is provided at the top position of the middle box body 2. The seamless hollow steel pipe 17 inside the middle box body 2 can be seen at the air inlet 8. The middle box body 2 and the lower box body 3 are connected by a flange. One side of the lower box body 3 is connected to the low-temperature flue gas outlet 7; as shown Figure 2 , a drain port 11 is provided at the bottom of the other side of the middle box body 2, the drain port 11 is provided with a drain ball valve 13, a drain port 12 is provided at the bottom of one side of the lower box body 3, and a drain ball valve 14 is provided at the drain port 12; Figure 3, on the opposite side of the box body 2 is provided with a water outlet 9 and an air outlet 10; Figure 5 As shown, the seamless hollow steel pipe 17 and the top flower plate 18 and the bottom flower plate 19 are seamlessly welded, and then Figure 4 As shown, the welded top flower plate 18 , the seamless hollow steel pipe 17 and the bottom flower plate 19 are fully welded to the interior of the middle box body 2 .

[0018] Among them, the opening position of the high-temperature flue gas inlet 5 on one side of the upper box body 1 is the center point position of one side, and the opening size of the high-temperature flue gas inlet 5 on one side of the upper box body 1 needs to be smaller than 1 / 2 of the shortest dimension of the length, width, height and height of one side of the upper box body 1, so as to achieve the effect of high-temperature gas buffering and cold cutting when the high-temperature flue gas enters the high-temperature flue gas buffer chamber 15 from the high-temperature flue gas inlet 5.

[0019] Among them, the middle box body 2 is fully welded to the top flower plate 18 and the bottom flower plate 19, keeping the seamless hollow steel pipe 17 and the water in the middle box body 2 in an isolated state to ensure that the high-temperature flue gas does not contact the water during cooling and does not cause secondary pollution to the water.

[0020] The water outlet 9 on one side of the middle box 2 is positioned horizontally higher than the highest water inlet 6 to ensure water utilization.

[0021] Among them, the air inlet 8 and the air outlet 10 at the top of one side of the middle box body 2 are horizontally positioned higher than the water outlet 9 to prevent water in the middle box body 2 from flowing out from the air inlet 8 and the air outlet 10.

[0022] A drain port 11 and a drain ball valve 13 are provided at the bottom of one side of the middle box body 2 to drain the water in the middle box body 2 when the machine is shut down for a long time or during maintenance.

[0023] The low-temperature flue gas buffer chamber 16 in the lower box body 3 is used to buffer the flue gas from the seamless hollow steel pipe 17 and purify the flue gas by natural sedimentation again.

[0024] The drain port 12 and drain ball valve 14 provided in the lower box body 3 are mainly used to discharge the condensed liquid to prevent accumulation in the lower box body 3 .

[0025] During operation, pressurized water is first connected to the water inlet 6 of the middle box body 2. When the water injection position reaches the water outlet 9, the water flows out from the water outlet 9 to the water pool isovolumetric tank to achieve the purpose of recycling. When the high-temperature flue gas is buffered by the upper box body 1 and then enters the seamless hollow steel pipe 17, the interior of the seamless hollow steel pipe is filled with high-temperature flue gas. At this time, the seamless hollow steel pipe 17 absorbs the heat of the high-temperature flue gas, and then the water inside the middle box body 2 and the wind from the air inlet 8 and the air outlet 10 absorb the heat of the seamless hollow steel pipe, thereby cooling and purifying the high-temperature flue gas inside the seamless hollow steel pipe. The cooled product flows to the lower box body 3 and then flows out of the lower box body 3 through the sewage outlet 12.

[0026] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein with equivalents. Therefore, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A high-temperature flue gas contactless cooling and purification device, characterized in that: include: The upper box body (1) is provided with a high-temperature flue gas inlet (5) on one side of the upper box body (1), the bottom of the upper box body (1) is connected to the middle box body (2), the upper box body (1) and the middle box body (2) are connected by flange connection, the middle box body (2) is provided with a top plate (18) and a bottom plate (19), the top plate (18) and the bottom plate (19) are uniformly opened. The opening size is consistent with the outermost size of the seamless hollow steel pipe (17), ensuring that the seamless hollow steel pipe (17) is opened. ) penetrate the top flower plate (18) and the bottom flower plate (19) according to the opening position, and at the same time seamlessly weld the seamless hollow steel pipe (17) and the top flower plate (18) and the bottom flower plate (19), and then fully weld the welded top flower plate (18), the seamless hollow steel pipe (17) and the bottom flower plate (19) to the interior of the middle box body (2), and a water inlet (6) is provided on one side of the middle box body (2), and the water inlet (6) is a layered structure. 2) A water outlet (9) is provided on the other side, the water outlet (9) is horizontally higher than the water inlet (6), and the size of the water outlet (9) is larger than the water inlet (6). A drain outlet (11) is provided at the bottom of one side of the middle box body (2), and a drain ball valve (13) is provided at the drain outlet (11). An air inlet (8) is provided at the top of one side of the middle box body (2), and an air outlet (10) is provided on the opposite side of the air inlet (8). The air inlet (8) and the air outlet (10) are of the same size. The bottom of the middle box (2) is connected to the lower box (3), and the middle box (2) and the lower box (3) are connected by flange connection. A low-temperature flue gas outlet (7) is provided on one side of the lower box (3). The high-temperature flue gas inlet (5) of the upper box (1) and the low-temperature flue gas outlet (7) are of the same size. A sewage outlet (12) is provided on the bottom of one side of the lower box (3), and a sewage ball valve (14) is provided at the sewage outlet (12). After the whole equipment is assembled, it is supported by a welding bracket (4).

2. A high-temperature flue gas contactless cooling and purification device according to claim 1, characterized in that The opening position of the high-temperature flue gas inlet (5) on one side of the upper box body (1) is the center point of one side. The opening size of the high-temperature flue gas inlet (5) on one side of the upper box body (1) needs to be smaller than 1 / 2 of the shortest dimension of the length, width, height and height of one side of the upper box body (1). The upper box body (1), the middle box body (2) and the lower box body (3) are all flange-connected.

3. A high-temperature flue gas contactless cooling and purification device according to claim 1, characterized in that The water inlet (6) on one side of the middle box body (2) is a layered structure with three water inlet positions. A water outlet (9) is provided on the other side of the water inlet (6). The horizontal position of the water outlet (9) is higher than the highest position of the water inlet (6). The size of the water outlet (9) is more than three times the size of the water inlet (6). A drain outlet (11) is provided at the bottom of one side of the middle box body (2). A drain ball valve (13) is provided at the drain outlet (11).

4. A high-temperature flue gas contactless cooling and purification device according to claim 1, characterized in that The middle box body (2) is provided with a top flower plate (18) and a bottom flower plate (19) with holes and penetrated by a seamless hollow steel pipe (17) according to the hole position. The top flower plate (18) and the bottom flower plate (19) are seamlessly welded at the connection with the seamless hollow steel pipe (17). The position of the seamless hollow steel pipe (17) and the top flower plate (18) and the bottom flower plate (19) when seamlessly welded should retain a distance of not less than 10 mm relative to the two ends of the seamless hollow steel pipe (17). The top flower plate (18) and the bottom flower plate (19) are both seamlessly welded to the inside of the middle box body (2).

5. A high-temperature flue gas contactless cooling and purification device according to claim 1, characterized in that An air inlet (8) is provided on one side of the middle box body (2), and an air outlet (10) is provided on the opposite side of the air inlet (8). The horizontal positions of the openings of the air inlet (8) and the air outlet (10) are higher than the highest horizontal position of the water outlet (9). The opening size of the air inlet (8) and the air outlet (10) is greater than or equal to 1 / 2 of the opening position of the middle box body (2).

6. A high-temperature flue gas contactless cooling and purification device according to claim 1, characterized in that A drain outlet (11) is provided at the bottom of one side of the middle box body (2), and a drain ball valve (13) is provided at the drain outlet (11). A low-temperature flue gas outlet (7) is provided at one side of the lower box body (3), and the low-temperature flue gas outlet (7) is consistent in size with the high-temperature flue gas inlet (5). A sewage outlet (12) is provided at the bottom of one side of the lower box body (3), and a sewage outlet ball valve (14) is provided at the sewage outlet.

7. A high-temperature flue gas contactless cooling and purification device according to claim 1, characterized in that The high-temperature flue gas enters the high-temperature flue gas buffer chamber (15) through the high-temperature flue gas inlet (5), and then enters the seamless hollow steel pipe (17) in the middle box (2) after being buffered by the high-temperature flue gas buffer chamber (15) to complete the flue gas cooling process. Finally, it passes through the low-temperature flue gas buffer chamber (16) and is discharged from the low-temperature flue gas outlet (7). The entire process of the high-temperature flue gas when passing through the equipment of the present invention is "the high-temperature flue gas inlet (5) - the high-temperature flue gas buffer chamber (15) - the internal channel of the seamless hollow steel pipe (17) - the low-temperature flue gas buffer chamber (16) - the low-temperature flue gas outlet (7)". The entire process does not contact water and air and is carried out completely in a closed space.

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