Heat energy recovery assembly for continuous sulfuric acid production

Abstract

The utility model relates to the technical field of sulfuric acid generation equipment, in particular to a heat energy recovery assembly for continuous sulfuric acid production, which comprises an outer box body for storing water, a gas conveying pipeline for conveying high-temperature gas is arranged in the outer box body, the gas conveying pipeline is snake-shaped and comprises a main channel serving as a main body, and the main channel is communicated with the outer box body. A plurality of fin plates are integrally formed on the circumferential outer wall of the main channel, and a channel used for conveying high-temperature gas in the main channel extends into the fin plates. The fin plates are arranged on the gas conveying pipeline, the contact area of the gas conveying pipeline and water can be increased through the fin plates, the heat transfer speed between high-temperature gas and the water can be increased, the heating speed of the water can be increased, heat recovery can be better carried out, and the gas conveying pipeline is snake-shaped, so that the heat transfer time can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of sulfuric acid generation equipment, in particular to a heat energy recovery component for continuous sulfuric acid production. Background Art

[0002] In the traditional sulfuric acid production process, a large amount of heat energy is released into the environment in the form of waste heat, which not only wastes precious energy resources, but also may cause thermal pollution to the environment. Especially in the continuous sulfuric acid production line, the heat recovery of high-temperature gas has always been a technical problem. Traditional heat recovery systems are often inefficient and cannot meet the high requirements of modern chemical production for energy efficiency and environmental performance.

[0003] Specifically, there are several problems: Limited heat exchange area: Traditional heat recovery components often have a small heat exchange area, which limits the heat transfer efficiency between high-temperature gas and water or other cooling media. Short heat transfer time: Due to design limitations, the high-temperature gas stays in the recovery component for a short time, resulting in the inability to fully recover the heat. In view of this, we propose a heat recovery component for continuous sulfuric acid production. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a heat energy recovery component for continuous sulfuric acid production.

[0005] The technical solution of the utility model is:

[0006] A heat recovery component for continuous sulfuric acid production includes an outer box for storing water, wherein a gas pipeline for conveying high-temperature gas is arranged in the outer box, wherein the gas pipeline is serpentine, and includes a main channel as a main body, wherein a plurality of fin plates are integrally formed on the circumferential outer wall of the main channel, wherein the channel for conveying high-temperature gas in the main channel extends into the fin plate, wherein a central axis is fixedly arranged at the center of the main channel, and a connecting cover is fixedly installed at both ends of the gas pipeline, wherein the connecting cover extends to the outside of the outer box.

[0007] As a preferred technical solution, a water inlet pipe is installed on the left side of the top of the outer box body, and a water outlet pipe is installed on the right side of the bottom.

[0008] As a preferred technical solution, a plurality of partitions are fixedly installed inside the outer box body, and the partitions divide the outer box body into a serpentine channel, and the gas pipeline passes through the partitions.

[0009] As a preferred technical solution, a stirring mechanism is installed in each of the multiple gaps in the gas pipeline in the outer box body, and the stirring mechanism includes a stirring shaft, and a plurality of stirring blades distributed at equal intervals are fixedly installed on the circumferential outer wall of the stirring shaft, and a stirring motor for driving the stirring shaft to rotate is installed on the outer box body.

[0010] As a preferred technical solution, a support leg is fixedly installed at each of the four corners of the bottom of the outer box.

[0011] As a preferred technical solution, a flange is welded and fixed to one end of each connection cover away from the gas pipeline.

[0012] As a preferred technical solution, a valve is installed on the water outlet pipe, and flanges are installed on both the water inlet pipe and the water outlet pipe.

[0013] As a preferred technical solution, the output shafts of the two stirring motors in two adjacent stirring mechanisms rotate in opposite directions.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model arranges a plurality of fin plates on the gas pipeline, and the fin plates can increase the contact area between the gas pipeline and water, thereby accelerating the heat transfer speed between the high-temperature gas and water, accelerating the heating speed of the water, and thus better performing heat recovery. The gas pipeline is serpentine, which can increase the heat transfer time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the gas transmission pipeline and the connection cover in the utility model;

[0018] Figure 3 It is a structural schematic diagram of the gas transmission pipeline in the utility model;

[0019] Figure 4 It is a schematic diagram of the internal structure of the outer box body of the utility model.

[0020] The meaning of each number in the figure is:

[0021] 1. Outer box; 10. Partition; 11. Stirring mechanism; 110. Stirring shaft; 111. Stirring blade; 112. Stirring motor; 2. Water inlet pipe; 3. Support leg; 4. Connecting cover; 5. Gas pipeline; 50. Fin plate; 51. Main channel; 52. Center axis; 6. Water outlet pipe; 60. Valve. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0024] The heat energy recovery component for continuous sulfuric acid production includes an outer box body 1 for storing water, a gas pipeline 5 for conveying high-temperature gas is arranged in the outer box body 1, the gas pipeline 5 is serpentine, and the gas pipeline 5 includes a main channel 51 as the main body, a plurality of fin plates 50 are integrally formed on the circumferential outer wall of the main channel 51, the channel for conveying high-temperature gas in the main channel 51 extends into the fin plate 50, a central axis 52 is fixedly arranged at the center of the main channel 51, and a connecting cover 4 is fixedly installed at both ends of the gas pipeline 5, and the connecting cover 4 extends to the outside of the outer box body 1. By arranging a plurality of fin plates 50 on the gas pipeline 5, the contact area between the gas pipeline 5 and the water can be increased through the fin plates 50, the heat transfer speed between the high-temperature gas and the water can be accelerated, the heating speed of the water can be accelerated, and the heat recovery can be better performed, and the gas pipeline 5 is serpentine, which can increase the heat transfer time.

[0025] As a preferred embodiment of the present invention, a water inlet pipe 2 is installed on the left side of the top of the outer box body 1, and a water outlet pipe 6 is installed on the right side of the bottom. By providing the water inlet pipe 2 and the water outlet pipe 6, the cooling water can flow into and out of the outer box body 1 conveniently.

[0026] As a preferred embodiment of the present invention, a plurality of partitions 10 are fixedly installed inside the outer box 1, and the partitions 10 divide the inner part of the outer box 1 into a serpentine passage, and the gas pipeline 5 passes through the partitions 10. By arranging the partitions 10 inside the outer box 1 to form a serpentine passage, the gas pipeline 5 passes through the outer box 1, which increases the heat exchange path between gas and water and enhances the heat energy recovery effect.

[0027] As a preferred embodiment of the present invention, a stirring mechanism 11 is installed in each of the multiple gaps in the gas pipeline 5 in the outer box 1, and the stirring mechanism 11 includes a stirring shaft 110, and a plurality of stirring blades 111 are fixedly installed on the outer wall of the stirring shaft 110 at equal intervals, and a stirring motor 112 is installed on the outer box 1 to drive the stirring shaft 110 to rotate. The stirring of the water in the outer box 1 is achieved, and the heat exchange efficiency between water and gas is improved.

[0028] As a preferred embodiment of the present invention, a support leg 3 is fixedly installed at each of the four corners of the bottom of the outer box body 1. The support leg 3 is used to support the outer box body 1.

[0029] As a preferred embodiment of the present invention, a flange is welded and fixed to one end of each connection cover 4 away from the gas pipeline 5, so as to facilitate connection with other pipelines or equipment and improve the connectivity and convenience of use of the assembly.

[0030] As a preferred embodiment of the present invention, a valve 60 is installed on the outlet pipe 6, and flanges are installed on both the inlet pipe 2 and the outlet pipe 6. The valve 60 is installed on the outlet pipe 6 to facilitate the control of water outflow; the flanges are installed on both the inlet pipe 2 and the outlet pipe 6 to improve the connection stability and sealing of the pipelines.

[0031] As a preferred embodiment of the present invention, the output shafts of the two stirring motors 112 in the two adjacent stirring mechanisms 11 rotate in opposite directions. By setting the output shafts of the stirring motors 112 of the two adjacent stirring mechanisms 11 to rotate in opposite directions, the flow of water in the box is made more complicated, further improving the heat exchange efficiency between water and high-temperature gas.

[0032] When the heat energy recovery component of the continuous sulfuric acid production of the utility model is used:

[0033] First, the high-temperature gas enters the gas pipeline 5 through the connecting cover 4. The high-temperature gas may be the waste gas generated in the sulfuric acid production process, which carries a large amount of heat energy. The gas pipeline 5 is designed to be serpentine, which increases the flow path of the gas in the pipeline, thereby extending the heat exchange time.

[0034] In the gas pipeline 5, the high-temperature gas passes through the main channel 51 and the fin plates 50. The design of these fin plates 50 greatly increases the contact area between the gas and water, thereby accelerating the heat transfer process.

[0035] At the same time, a plurality of partitions 10 are arranged inside the outer box 1, which divide the inner space of the outer box 1 into a serpentine channel, and the gas pipeline 5 passes through these partitions 10. Such a design requires the cold water to flow along a longer path, further enhancing the effect of heat exchange.

[0036] In order to further improve the heat exchange efficiency, stirring mechanisms 11 are installed in the multiple gaps in the outer box 1. These stirring mechanisms 11 are composed of a stirring shaft 110 and stirring blades 111. The stirring shaft 110 drives the stirring blades 111 to rotate through the driving of the stirring motor 112, thereby stirring the water in the outer box 1. This stirring action makes the water form turbulence, increases the contact frequency between water and gas, and thus improves the heat exchange efficiency.

[0037] In addition, a water inlet pipe 2 is provided at the top of the outer box 1, and a water outlet pipe 6 is provided at the bottom, so that cooling water can easily flow into and out of the outer box 1. When the cooling water flows into the outer box 1 from the water inlet pipe 2, it will exchange heat with the high-temperature gas, absorb the heat energy of the gas, and then the heated water will flow out through the water outlet pipe 6, thereby realizing the recovery of heat energy.

[0038] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A heat recovery assembly for continuous sulfuric acid production, comprising an outer box (1) for storing water, characterized in that: The outer box (1) is provided with a gas pipeline (5) for conveying high-temperature gas. The gas pipeline (5) is serpentine-shaped. The gas pipeline (5) comprises a main channel (51) as a main body. A plurality of fin plates (50) are integrally formed on the circumferential outer wall of the main channel (51). The channel for conveying high-temperature gas in the main channel (51) extends into the fin plate (50). A central axis (52) is fixedly provided at the center of the main channel (51). A connecting cover (4) is fixedly installed at both ends of the gas pipeline (5). The connecting cover (4) extends to the outside of the outer box (1).

2. The heat recovery assembly for continuous sulfuric acid production according to claim 1, characterized in that: A water inlet pipe (2) is installed on the left side of the top of the outer box body (1), and a water outlet pipe (6) is installed on the right side of the bottom.

3. The heat recovery assembly for continuous sulfuric acid production according to claim 2, characterized in that: A plurality of partitions (10) are fixedly installed inside the outer box (1), and the partitions (10) divide the inner part of the outer box (1) into a serpentine channel, and the gas pipeline (5) passes through the partitions (10).

4. The heat recovery assembly for continuous sulfuric acid production according to claim 3, characterized in that: A stirring mechanism (11) is installed in each of the plurality of gaps located in the gas transmission pipeline (5) in the outer box (1), the stirring mechanism (11) comprising a stirring shaft (110), a plurality of stirring blades (111) distributed at equal intervals being fixedly installed on the circumferential outer wall of the stirring shaft (110), and a stirring motor (112) for driving the stirring shaft (110) to rotate is installed on the outer box (1).

5. The heat recovery assembly for continuous sulfuric acid production according to claim 4, characterized in that: A support leg (3) is fixedly mounted at each of the four corners of the bottom of the outer box body (1).

6. The heat recovery assembly for continuous sulfuric acid production according to claim 5, characterized in that: A flange is welded and fixed to one end of each connection cover (4) away from the gas pipeline (5).

7. The heat recovery assembly for continuous sulfuric acid production according to claim 6, characterized in that: The water outlet pipe (6) is provided with a valve (60), and the water inlet pipe (2) and the water outlet pipe (6) are both provided with flanges.

8. The heat recovery assembly for continuous sulfuric acid production according to claim 7, characterized in that: The output shafts of the two stirring motors (112) in two adjacent stirring mechanisms (11) rotate in opposite directions.

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