Sulfur trioxide condenser with intelligent differential heat exchange function

Abstract

The sulfur trioxide condenser with the intelligent differential heat exchange function relates to the technical field of condensation recovery and comprises a machine body, a cold air pipe is arranged in the machine body, a hot air pipe is arranged on the side, close to the outer wall of the machine body, of the cold air pipe, and a neutralization cavity is formed in the bottom of the hot air pipe; a neutralizing pipe is arranged between the neutralizing cavity and the hot gas pipe, a hot gas port is formed in the outer part of the neutralizing cavity, and a sulfur trioxide gas chamber is formed in the outer part of the machine body; an external air pump conveys cold air into a cold air opening through a pipeline, then the cold air is conveyed into a cold air pipe through the cold air opening, an air pump in a sulfur trioxide gas chamber conveys sulfur trioxide gas into a hot air opening through a pipeline, the sulfur trioxide gas is conveyed into a neutralization cavity through the hot air opening, and then the sulfur trioxide gas is conveyed into a hot air pipe from the neutralization cavity through a neutralization pipe. Cold air in the cold air pipe and sulfur trioxide gas in the hot air pipe are subjected to heat exchange treatment, so that the sulfur trioxide gas is cooled and condensed to form sulfur trioxide liquid beads.

Description

Technical Field

[0001] The invention relates to the technical field of condensation recovery, and in particular to a sulfur trioxide condenser with an intelligent differential heat exchange function. Background Art

[0002] Sulfur trioxide (chemical formula: SO3) is a colorless, strongly irritating gas with high chemical activity. It is an important intermediate product in the production of sulfuric acid and is mainly produced through oxidation reactions during the combustion of sulfur. Sulfur trioxide is one of the basic chemicals in the sulfuric acid industry and is widely used in the production of concentrated sulfuric acid, ammonium sulfate, copper sulfate and other chemicals. As a gas, sulfur trioxide is highly corrosive at room temperature and can quickly generate sulfuric acid when it comes into contact with water. Therefore, its handling and transportation require special attention to its corrosive effect on equipment. At the same time, sulfur trioxide is one of the main sources of air pollution. When sulfur trioxide gas is discharged into the atmosphere, it can react with water vapor, oxygen and other gases to form sulfuric acid mist or sulfuric acid gas. The sulfuric acid gas further combines with moisture in the air to form sulfuric acid, thereby forming acid rain, which damages the ecological environment. Existing sulfur trioxide condensation systems usually rely on a single cooling method. The condensation efficiency is limited by the cooling medium and temperature difference, and it is impossible to achieve efficient condensation under low energy consumption conditions. Especially under high load or high temperature conditions, the condensation efficiency may drop significantly; and there is a large heat energy loss. During the use of the condenser, due to insufficient temperature difference on the heat exchange surface or low heat exchange efficiency, a large amount of cooling medium or external energy is required to maintain the condensation process, resulting in unnecessary energy waste. Summary of the invention

[0003] The object of the present invention is to provide a sulfur trioxide condenser with an intelligent differential heat exchange function to solve the problems raised in the prior art.

[0004] To achieve the above object, the present invention provides the following technical solutions: A sulfur trioxide condenser with an intelligent differential heat exchange function comprises a body, a cold air pipe is arranged in the body, a hot air pipe is arranged on the side of the cold air pipe close to the outer wall of the body, a cold air port is arranged at the bottom of the cold air pipe, a neutralization cavity is arranged at the bottom of the hot air pipe, a plurality of neutralization pipes are arranged between the neutralization cavity and the hot air pipe, a plurality of hot air ports are arranged outside the neutralization cavity, the cold air port is connected to an external air pump through a pipeline, a sulfur trioxide air chamber is arranged outside the body, an air pump is arranged in the sulfur trioxide air chamber, and the air pump is connected to the hot air port through a pipeline.

[0005] The external air pump transports cold air to the cold air port through the pipeline, and then the cold air is transported to the cold air pipe through the cold air port. The air pump in the sulfur trioxide gas chamber transports sulfur trioxide gas to the hot air port through the pipeline, and then transports it to the neutralization cavity through the hot air port. Then the sulfur trioxide gas is transported from the neutralization cavity to the hot air pipe through the neutralization pipe, so that the cold air in the cold air pipe and the sulfur trioxide gas in the hot air pipe are heat exchanged, so that the sulfur trioxide gas is cooled and condensed to form sulfur trioxide liquid droplets.

[0006] Preferably, a low-temperature pipe is provided on the side of the hot air pipe away from the cold air pipe, the top of the low-temperature pipe is connected to the cold air pipe, a cold air outlet is provided on the top of the low-temperature pipe, a plurality of low-temperature ports are provided on the side wall of the cold air port, and the bottom of the low-temperature pipe is connected to the cold air port through the low-temperature port.

[0007] Preferably, a return pipe is provided on the side of the low-temperature pipe away from the hot air pipe, a conveying cavity is provided on the top of the body, and a plurality of connecting pipes are provided between the bottom of the conveying cavity and the hot air pipe, and the connecting pipes connect the hot air pipe and the conveying cavity.

[0008] Preferably, a plurality of gas delivery pipes are arranged on the side wall of the delivery chamber, the gas delivery pipes connect the delivery chamber and the return pipe, a hot air outlet is arranged on the top of the delivery chamber, a plurality of neutralization ports are arranged on the bottom of the return pipe, and the return pipe is connected with the hot air outlet through the neutralization port.

[0009] Preferably, a decelerator is provided inside the cold air pipe, and the decelerator is connected to the inner wall of the cold air pipe through a bracket, and the cross-sectional diameter of the decelerator close to the cold air outlet is larger than the cross-sectional diameter of the decelerator away from the cold air outlet.

[0010] Preferably, a rotating body is provided on the side of the deceleration body close to the cold air outlet, and the rotating body is rotatably connected to the deceleration body. The rotating body consists of a rotating block and a conical block. A plurality of blades are provided on the outer wall of the rotating block. An impact ball is provided at the bottom of the conical block, and the impact ball is connected to the conical block by a pull rope.

[0011] Preferably, a condenser is provided between two adjacent neutralization tubes, and a recovery chamber is further provided outside the machine body, and the condenser connects the hot air tube and the recovery chamber.

[0012] Preferably, the surface of the hot air pipe close to the cold air pipe and the surface of the hot air pipe close to the low temperature pipe are both provided with spiral patterns, and the curvature of the spiral patterns on the hot air pipe close to the cold air pipe is greater than the curvature of the spiral patterns on the hot air pipe close to the low temperature pipe.

[0013] Preferably, the distance between the neutralization tube and the spiral pattern in the hot air tube is greater than the distance between the condensation tube and the spiral pattern in the hot air tube.

[0014] Preferably, a thermal insulation layer is provided between the low-temperature pipe and the return pipe.

[0015] When the cold air is transported to the cold air pipe through the cold air outlet, the cold air will first flow through the deceleration body. Since the cross-sectional diameter of the side of the deceleration body close to the cold air outlet is larger than the cross-sectional diameter of the side of the deceleration body far from the cold air outlet, the flow rate of the cold air will be accelerated when the cold air flows through the side of the deceleration body close to the cold air outlet. When the cold air flows faster, it will encounter the fan blades, so that the cold air will push the blades to rotate. When the blades rotate, they will drive the rotating block to rotate. When the rotating block rotates, it will drive the conical block to rotate. When the conical block rotates, it will pull the pull rope to drive the impact ball to rotate. The impact ball will move toward the inner wall of the cold air pipe under the action of centrifugal force, and then impact the inner wall of the cold air pipe and generate vibration. In the process of the cold air pushing the blades to rotate, the cold air encounters resistance from the blades, and the flow rate of the cold air decreases. When the cold air moves from the side of the deceleration body close to the cold air outlet to the side of the deceleration body away from the cold air outlet, the inner cavity volume of the cold air pipe increases, so that when the cold air moves into the cold air pipe, the flow rate of the cold air will further decrease. Compared with the flow rate of sulfur trioxide gas, the flow rate of the cold air is less than that of sulfur trioxide gas, and a flow rate difference is formed between the cold air and sulfur trioxide gas. In addition, a spiral pattern is provided on the side of the hot air pipe close to the cold air pipe, so that the sulfur trioxide gas will move along the spiral pattern when flowing in the hot air pipe, and the curvature of the spiral pattern on the side of the hot air pipe close to the cold air pipe is larger, thereby increasing the contact area between the sulfur trioxide gas and the wall of the cold air pipe; Under the condition that the contact area between the sulfur trioxide gas and the wall of the cold air pipe is large, there is a flow difference between the sulfur trioxide gas and the cold air, which can reduce the thickness of the thermal boundary layer between the sulfur trioxide gas and the wall of the cold air pipe, thereby improving the heat transfer efficiency. In addition, the flow rate of the cold air is appropriately slow, which helps to maintain a high temperature difference. In this way, the cold air can exchange heat with the sulfur trioxide gas for a longer time, further improving the heat transfer efficiency, so that the sulfur trioxide gas can be cooled and condensed faster, thereby condensing to form sulfur trioxide liquid droplets. The sulfur trioxide droplets condense on the spiral pattern in the hot air pipe and move downward along the spiral pattern. During the condensation process, the impact ball continuously impacts the cold air pipe, and the vibration generated is transmitted to the surface of the hot air pipe through the body, and then the vibration accelerates the movement speed of the sulfur trioxide droplets. Since the distance between the neutralization pipe and the spiral pattern in the hot air pipe is greater than the distance between the condensation pipe and the spiral pattern in the hot air pipe, when the sulfur trioxide droplets flow to the bottom of the hot air pipe, they can only flow into the condensation pipe and flow to the recovery chamber through the condensation pipe, thereby realizing the recovery of the sulfur trioxide droplets. The cold air in the cold air pipe flows upward, and then flows from the cold air pipe to the low-temperature pipe. Since the surface of the hot air pipe close to the low-temperature pipe is also provided with spiral patterns, the cold air can still condense and cool the sulfur trioxide gas in the hot air pipe in the low-temperature pipe, thereby accelerating the condensation speed of the sulfur trioxide gas and saving the condensation time of the sulfur trioxide gas. Finally, the cold air in the low-temperature pipe is transported to the cold air port again through the low-temperature port, and then enters the cold air pipe again to condense the sulfur trioxide gas. During the cold air transportation process, the cold air outlet at the bottom of the low-temperature pipe is opened, thereby ensuring that the gas pressure in the cold air pipe and the low-temperature pipe is within a normal range; The condensed sulfur trioxide gas flows to the side close to the connecting pipe, and the sulfur trioxide gas flows from the connecting pipe to the conveying cavity, and then is conveyed to the return pipe through the gas conveying pipe. At this time, the temperature of the sulfur trioxide gas in the return pipe is lower than that in the hot air pipe. The sulfur trioxide gas with a lower temperature is conveyed to the neutralization port through the return pipe, and then the sulfur trioxide gas with a lower temperature enters the hot air pipe again, and then enters the neutralization cavity. The sulfur trioxide gases of two different temperatures are mixed in the neutralization cavity, so that the high-temperature sulfur trioxide gas input from the sulfur trioxide gas chamber and the low-temperature sulfur trioxide gas input from the return pipe are mixed with each other, thereby realizing the pre-cooling of the sulfur trioxide gas, and then the temperature of the sulfur trioxide gas after being conveyed to the hot air pipe and then the sulfur trioxide gas after being conveyed to the hot air pipe 3 is lower than the temperature before being input, and the cooling and condensation time is further shortened, thereby further improving the condensation efficiency of the sulfur trioxide gas; Since an insulation layer is provided between the cryogenic pipe and the return pipe, heat exchange between the cold air in the cryogenic pipe and the sulfur trioxide gas in the return pipe is avoided, thereby causing sulfur trioxide liquid droplets to condense on the wall of the return pipe.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. Under the condition that the contact area between the sulfur trioxide gas and the wall of the cold air pipe is large, there is a flow difference between the sulfur trioxide gas and the cold air, which can reduce the thickness of the thermal boundary layer between the sulfur trioxide gas and the wall of the cold air pipe, thereby improving the heat transfer efficiency. In addition, the flow rate of the cold air is appropriately slow, which helps to maintain a higher temperature difference. In this way, the cold air can exchange heat with the sulfur trioxide gas for a longer time, further improving the heat transfer efficiency, so that the sulfur trioxide gas can be cooled and condensed faster, thereby condensing to form sulfur trioxide liquid droplets.

[0017] 2. The sulfur trioxide droplets condense on the spiral patterns in the hot air pipe and move downward along the spiral patterns. During the condensation process, the impact ball continuously impacts the cold air pipe, and the vibration generated is transmitted to the surface of the hot air pipe through the machine body, thereby accelerating the movement of the sulfur trioxide droplets. After the sulfur trioxide gas is condensed and recovered, it is prevented from being discharged to the outside, thereby damaging the ecological environment, thereby ensuring the stability of the ecological environment.

[0018] 3. The cold air is delivered to drive the rotating block to rotate, thereby driving the impact ball to impact the wall of the cold air pipe to generate vibration. The vibration is transmitted to the hot air pipe, which accelerates the flow of sulfur trioxide liquid droplets. The cold air flows from the cold air pipe to the low-temperature pipe, so that the hot air pipe is wrapped by the cold air pipe and the low-temperature pipe, and then the hot air pipe is condensed on both sides, thereby improving the utilization rate of the cold air, avoiding a large amount of energy consumption, and achieving energy-saving effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A perspective view of the present invention; Figure 2 It is a front view of the present invention; Figure 3 It is a schematic diagram of the internal structure of the present invention; Figure 4 It is an internal front view of the present invention; Figure 5 is a cross-sectional view of the present invention; Figure 6 is a transverse cross-sectional view of the present invention; Figure 7 is a schematic diagram of the internal structure of the cold air pipe; In the figure: 1. machine body; 2. cold air pipe; 21. cold air outlet; 3. hot air pipe; 31. neutralization chamber; 32. neutralization pipe; 33. hot air outlet; 4. low temperature pipe; 41. low temperature outlet; 5. reflux pipe; 51. conveying chamber; 52. connecting pipe; 53. air delivery pipe; 54. neutralization outlet; 6. deceleration body; 7. rotating body; 71. rotating block; 72. conical block; 73. blade; 74. impact ball; 8. condenser. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Example: Figure 1-Figure 7As shown, the present invention provides a technical solution of a sulfur trioxide condenser with an intelligent differential heat exchange function, including a body 1, a cold air pipe 2 is arranged inside the body 1, a hot air pipe 3 is arranged on the side of the cold air pipe 2 close to the outer wall of the body 1, a cold air port 21 is arranged at the bottom of the cold air pipe 2, a neutralization cavity 31 is arranged at the bottom of the hot air pipe 3, a plurality of neutralization tubes 32 are arranged between the neutralization cavity 31 and the hot air pipe 3, a plurality of hot air ports 33 are arranged outside the neutralization cavity 31, the cold air port 21 is connected to an external air pump through a pipeline, a sulfur trioxide air chamber is arranged outside the body 1, an air pump is arranged in the sulfur trioxide air chamber, and the air pump is connected to the hot air port 33 through a pipeline.

[0022] As a specific embodiment of the present invention, a low-temperature pipe 4 is provided on the side of the hot air pipe 3 away from the cold air pipe 2, the top of the low-temperature pipe 4 is connected with the cold air pipe 2, the top of the low-temperature pipe 4 is provided with a cold air outlet, and a plurality of low-temperature ports 41 are provided on the side wall of the cold air port 21, and the bottom of the low-temperature pipe 4 is connected with the cold air port 21 through the low-temperature port 41.

[0023] The surface of the hot air pipe 3 close to the cold air pipe 2 and the surface of the hot air pipe 3 close to the low temperature pipe 4 are both provided with spiral patterns, and the curvature of the spiral pattern on the side of the hot air pipe 3 close to the cold air pipe 2 is greater than the curvature of the spiral pattern on the side of the hot air pipe 3 close to the low temperature pipe 4.

[0024] As a specific embodiment of the present invention, a return pipe 5 is provided on the side of the low-temperature pipe 4 away from the hot air pipe 3, a conveying cavity 51 is provided on the top of the body 1, and a plurality of connecting pipes 52 are provided between the bottom of the conveying cavity 51 and the hot air pipe 3. The connecting pipes 52 connect the hot air pipe 3 and the conveying cavity 51, and an insulation layer is provided between the low-temperature pipe 4 and the return pipe 5.

[0025] As a specific embodiment of the present invention, a plurality of gas pipes 53 are arranged on the side wall of the delivery chamber 51, and the gas pipes 53 connect the delivery chamber 51 and the return pipe 5. A hot air outlet is arranged at the top of the delivery chamber 51, and a plurality of neutralization ports 54 are arranged at the bottom of the return pipe 5. The return pipe 5 is connected to the hot air outlet 33 through the neutralization port 54.

[0026] As a specific embodiment of the present invention, a deceleration body 6 is arranged inside the cold air pipe 2, and the deceleration body 6 is connected to the inner wall of the cold air pipe 2 through a bracket. The cross-sectional diameter of the deceleration body 6 close to the cold air port 21 is larger than the cross-sectional diameter of the deceleration body 6 away from the cold air port 21.

[0027] As a specific embodiment of the present invention, a rotating body 7 is provided on the side of the deceleration body 6 close to the cold air outlet 21, and the rotating body 7 is rotatably connected to the deceleration body 6. The rotating body 7 consists of a rotating block 71 and a conical block 72. A plurality of blades 73 are provided on the outer wall of the rotating block 71. An impact ball 74 is provided at the bottom of the conical block 72. The impact ball 74 is connected to the conical block 72 by a pull rope.

[0028] As a specific embodiment of the present invention, a condenser tube 8 is arranged between two adjacent neutralization tubes 32, and a recovery chamber is also arranged outside the body 1. The condenser tube 8 connects the hot air pipe 3 and the recovery chamber, and the distance between the neutralization tube 32 and the spiral pattern in the hot air pipe 3 is greater than the distance between the condenser tube 8 and the spiral pattern in the hot air pipe 3.

[0029] Working principle of the present invention: When the cold air is transported to the cold air pipe 2 through the cold air outlet 21, the cold air will first flow through the deceleration body 6. Since the cross-sectional diameter of the side of the deceleration body 6 close to the cold air outlet 21 is larger than the cross-sectional diameter of the side of the deceleration body 6 far from the cold air outlet 21, the flow rate of the cold air is accelerated when the cold air flows through the side of the deceleration body 6 close to the cold air outlet 21. When the flow rate of the cold air is accelerated, it will encounter the fan blades 73, so that the cold air will push the blades 73 to rotate. When the blades 73 rotate, the rotating block 71 will rotate. When the rotating block 71 rotates, the conical block 72 will rotate. When the conical block 72 rotates, the pull rope will be pulled to drive the impact ball 74 to rotate. The impact ball 74 will move toward the inner wall of the cold air pipe 2 under the action of centrifugal force, and then hit the inner wall of the cold air pipe 2 and generate vibration. In the process of the cold air pushing the blade 73 to rotate, the cold air is resisted by the blade 73, and the flow speed of the cold air will decrease. When the cold air moves from the side of the deceleration body 6 close to the cold air port 21 to the side of the deceleration body 6 away from the cold air port 21, the inner cavity volume of the cold air pipe 2 becomes larger, so that when the cold air moves into the cold air pipe 2, the flow speed of the cold air will further decrease. Compared with the flow speed of the sulfur trioxide gas, the flow speed of the cold air is less than the flow speed of the sulfur trioxide gas, and thus a flow speed difference is formed between the cold air and the sulfur trioxide gas. In addition, a spiral pattern is provided on the side of the hot air pipe 3 close to the cold air pipe 2, so that the sulfur trioxide gas will move along the spiral pattern when flowing in the hot air pipe 3, and the curvature of the spiral pattern on the side of the hot air pipe 3 close to the cold air pipe 2 is larger, thereby increasing the contact area between the sulfur trioxide gas and the wall of the cold air pipe 2; Under the condition that the contact area between the sulfur trioxide gas and the wall of the cold air pipe 2 is large, there is a flow difference between the sulfur trioxide gas and the cold air, which can reduce the thickness of the thermal boundary layer between the sulfur trioxide gas and the wall of the cold air pipe 2, and the flow rate of the cold air is appropriately slow, which helps to maintain a high temperature difference, so that the cold air can exchange heat with the sulfur trioxide gas for a longer time, so that the sulfur trioxide gas can be cooled and condensed faster, thereby condensing to form sulfur trioxide liquid droplets; The sulfur trioxide droplets condense on the spiral pattern in the hot air pipe 3 and move downward along the spiral pattern. During the condensation process, the impact ball 74 continuously impacts the cold air pipe 2, and the generated vibration is transmitted to the surface of the hot air pipe 3 through the body 1, and then the vibration accelerates the movement speed of the sulfur trioxide droplets. Since the distance between the neutralization pipe 32 and the spiral pattern in the hot air pipe 3 is greater than the distance between the condensation pipe 8 and the spiral pattern in the hot air pipe 3, when the sulfur trioxide droplets flow to the bottom of the hot air pipe 3, they can only flow into the condensation pipe 8 and flow to the recovery chamber through the condensation pipe 8, so as to realize the recovery of the sulfur trioxide droplets. The cold air in the cold air pipe 2 flows upward, and then flows from the cold air pipe 2 to the low temperature pipe 4. Since the surface of the hot air pipe 3 close to the low temperature pipe 4 is also provided with spiral patterns, the cold air can still condense and cool the sulfur trioxide gas in the hot air pipe 3 in the low temperature pipe 4. Finally, the cold air in the low temperature pipe 4 is transported to the cold air port 21 again through the low temperature port 41, and then enters the cold air pipe 2 again to condense the sulfur trioxide gas. During the cold air transportation process, the cold air outlet at the bottom of the low temperature pipe 4 is opened, thereby ensuring that the gas pressure in the cold air pipe 2 and the low temperature pipe 4 is within a normal range. The condensed sulfur trioxide gas flows to the side close to the connecting pipe 52, and the sulfur trioxide gas flows from the connecting pipe 52 to the conveying chamber 51, and then is conveyed to the return pipe 5 through the gas conveying pipe 53. At this time, the temperature of the sulfur trioxide gas in the return pipe 5 is lower than that in the hot air pipe 3. The sulfur trioxide gas with a lower temperature is conveyed to the neutralization port 54 through the return pipe 5, and then the sulfur trioxide gas with a lower temperature enters the hot air pipe 3 again, and then enters the neutralization chamber 31. The sulfur trioxide gases of two different temperatures are mixed in the neutralization chamber 31, so that the high-temperature sulfur trioxide gas input from the sulfur trioxide gas chamber and the low-temperature sulfur trioxide gas input from the return pipe 5 are mixed with each other, thereby realizing the pre-cooling of the sulfur trioxide gas, and then the temperature of the sulfur trioxide gas after being conveyed to the hot air pipe 3 is lower than the temperature before being input; Since an insulation layer is provided between the cryogenic tube 4 and the return tube 5 , heat exchange between the cold air in the cryogenic tube 4 and the sulfur trioxide gas in the return tube 5 is avoided, thereby causing sulfur trioxide droplets to condense on the wall of the return tube 5 .

[0030] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A sulfur trioxide condenser with intelligent differential heat exchange function, characterized in that: The invention comprises a machine body (1), wherein a cold air pipe (2) is arranged inside the machine body (1), a hot air pipe (3) is arranged on one side of the cold air pipe (2) close to the outer wall of the machine body (1), a cold air port (21) is arranged at the bottom of the cold air pipe (2), a neutralization chamber (31) is arranged at the bottom of the hot air pipe (3), a plurality of neutralization pipes (32) are arranged between the neutralization chamber (31) and the hot air pipe (3), a plurality of hot air ports (33) are arranged outside the neutralization chamber (31), the cold air port (21) is connected to an external air pump through a pipeline, a sulfur trioxide air chamber is arranged outside the machine body (1), an air pump is arranged in the sulfur trioxide air chamber, and the air pump is connected to the hot air port (33) through a pipeline.

2. The sulfur trioxide condenser with intelligent differential heat exchange function according to claim 1, characterized in that: A low-temperature pipe (4) is arranged on the side of the hot air pipe (3) away from the cold air pipe (2); the top of the low-temperature pipe (4) is connected to the cold air pipe (2); a cold air outlet is arranged on the top of the low-temperature pipe (4); a plurality of low-temperature ports (41) are arranged on the side wall of the cold air port (21); and the bottom of the low-temperature pipe (4) is connected to the cold air port (21) via the low-temperature ports (41).

3. The sulfur trioxide condenser with intelligent differential heat exchange function according to claim 2, characterized in that: A return pipe (5) is provided on the side of the low-temperature pipe (4) away from the hot air pipe (3), a conveying chamber (51) is provided on the top of the machine body (1), and a plurality of connecting pipes (52) are provided between the bottom of the conveying chamber (51) and the hot air pipe (3), wherein the connecting pipes (52) connect the hot air pipe (3) and the conveying chamber (51).

4. The sulfur trioxide condenser with intelligent differential heat exchange function according to claim 3, characterized in that: A plurality of gas delivery pipes (53) are arranged on the side wall of the delivery chamber (51), and the gas delivery pipes (53) connect the delivery chamber (51) and the return pipe (5). A hot gas outlet is arranged at the top of the delivery chamber (51), and a plurality of neutralization ports (54) are arranged at the bottom of the return pipe (5). The return pipe (5) is connected to the hot gas outlet (33) via the neutralization ports (54).

5. The sulfur trioxide condenser with intelligent differential heat exchange function according to claim 1, characterized in that: A decelerator (6) is arranged inside the cold air pipe (2); the decelerator (6) is connected to the inner wall of the cold air pipe (2) via a bracket; the cross-sectional diameter of the decelerator (6) on the side close to the cold air outlet (21) is larger than the cross-sectional diameter of the decelerator (6) on the side away from the cold air outlet (21).

6. The sulfur trioxide condenser with intelligent differential heat exchange function according to claim 5, characterized in that: A rotating body (7) is arranged on one side of the deceleration body (6) close to the cold air outlet (21); the rotating body (7) is rotatably connected to the deceleration body (6); the rotating body (7) is composed of a rotating block (71) and a conical block (72); a plurality of blades (73) are arranged on the outer wall of the rotating block (71); an impact ball (74) is arranged at the bottom of the conical block (72); and the impact ball (74) is connected to the conical block (72) by a pull rope.

7. The sulfur trioxide condenser with intelligent differential heat exchange function according to claim 1, characterized in that: A condenser pipe (8) is provided between two adjacent neutralization pipes (32), and a recovery chamber is also provided outside the machine body (1). The condenser pipe (8) connects the hot air pipe (3) and the recovery chamber.

8. The sulfur trioxide condenser with intelligent differential heat exchange function according to claim 2, characterized in that: The surface of the hot air pipe (3) on the side close to the cold air pipe (2) and the surface of the hot air pipe (3) on the side close to the low temperature pipe (4) are both provided with spiral patterns, and the curvature of the spiral patterns on the side close to the cold air pipe (2) is greater than the curvature of the spiral patterns on the side close to the low temperature pipe (4).

9. The sulfur trioxide condenser with intelligent differential heat exchange function according to claim 8, characterized in that: The distance between the neutralization tube (32) and the spiral pattern in the hot air tube (3) is greater than the distance between the condensation tube (8) and the spiral pattern in the hot air tube (3).

10. The sulfur trioxide condenser with intelligent differential heat exchange function according to claim 3, characterized in that: A heat-insulating layer is provided between the low-temperature pipe (4) and the return pipe (5).

Images