A sulfur trioxide condenser with intelligent differential heat exchange function

Abstract

The present invention discloses a sulfur trioxide condenser with an intelligent differential heat exchange function, which relates to the technical field of condensation recovery. It includes a body, a cold air pipe is arranged inside the body, a hot air pipe is arranged on one side of the cold air pipe close to the outer wall of the body, a neutralization chamber is arranged at the bottom of the hot air pipe, a neutralization pipe is arranged between the neutralization chamber and the hot air pipe, a hot air port is arranged outside the neutralization chamber, and a sulfur trioxide gas chamber is arranged outside the body; an external air pump transports cold air into the cold air port through a pipeline, and then the cold air is transported into the cold air pipe through the cold air port. The air pump in the sulfur trioxide gas chamber transports sulfur trioxide gas into the hot air port through a pipeline, and then transports it into the neutralization chamber through the hot air port. Subsequently, the sulfur trioxide gas is transported from the neutralization chamber to the hot air pipe through the neutralization pipe, so that the cold air in the cold air pipe exchanges heat with the sulfur trioxide gas in the hot air pipe, thereby cooling and condensing the sulfur trioxide gas to form sulfur trioxide liquid beads.

Description

Technical Field

[0001] The present invention relates to the technical field of condensation recovery, and specifically 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 sulfuric acid production, mainly generated through the oxidation reaction 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 has strong corrosiveness at room temperature and can rapidly form sulfuric acid when it encounters water. Therefore, special attention needs to be paid to its corrosive effect on equipment during its treatment and transportation. 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 the moisture in the air to form sulfuric acid, thus forming acid rain, which causes damage to the ecological environment.

[0003] Existing sulfur trioxide condensation systems usually rely on a single cooling method, and 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 amount of 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 needs to be consumed to maintain the condensation process, resulting in unnecessary energy waste. Summary of the Invention

[0004] The purpose 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.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A sulfur trioxide condenser with an intelligent differential heat exchange function includes a body. A cold air pipe is arranged inside the body. A hot air pipe is arranged on one side of the cold air pipe close to the outer wall of the body. A cold air outlet is arranged at the bottom of the cold air pipe. A neutralization chamber is arranged at the bottom of the hot air pipe. A number of neutralization pipes are arranged between the neutralization chamber and the hot air pipe. A number of hot air outlets are arranged outside the neutralization chamber. The cold air outlet is connected to an external air pump through a pipeline. A sulfur trioxide gas chamber is arranged outside the body. An air pump is arranged inside the sulfur trioxide gas chamber. The air pump is connected to the hot air outlet through a pipeline.

[0007] The external air pump transports cold air through a pipeline into the cold air port, and then the cold air is transported through the cold air port into the cold air pipe. The air pump in the sulfur trioxide gas chamber transports sulfur trioxide gas through a pipeline into the hot air port and then into the neutralization chamber through the hot air port. Subsequently, the sulfur trioxide gas is transported from the neutralization chamber through the neutralization pipe into the hot air pipe, enabling the cold air in the cold air pipe to exchange heat with the sulfur trioxide gas in the hot air pipe, thereby cooling and condensing the sulfur trioxide gas to form sulfur trioxide liquid beads.

[0008] 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. An air outlet for cold air is provided at the top of the low-temperature pipe, and a plurality of low-temperature ports are provided on the side wall of the cold air port. The bottom of the low-temperature pipe is connected to the cold air port through the low-temperature ports.

[0009] Preferably, a reflux pipe is provided on the side of the low-temperature pipe away from the hot air pipe. A conveying chamber is provided at the top of the machine body. A plurality of connecting pipes are provided between the bottom of the conveying chamber and the hot air pipe, and the connecting pipes connect the hot air pipe and the conveying chamber.

[0010] Preferably, a plurality of air delivery pipes are provided on the side wall of the conveying chamber, and the air delivery pipes connect the conveying chamber and the reflux pipe. A hot air outlet is provided at the top of the conveying chamber, and a plurality of neutralization ports are provided at the bottom of the reflux pipe. The reflux pipe is connected to the hot air port through the neutralization ports.

[0011] Preferably, a decelerating body is provided inside the cold air pipe. The decelerating body is connected to the inner wall of the cold air pipe through a bracket. The cross-sectional diameter of the decelerating body on the side close to the cold air port is larger than the cross-sectional diameter of the decelerating body on the side away from the cold air port.

[0012] Preferably, a rotating body is provided on the side of the decelerating body close to the cold air port. The rotating body is rotatably connected to the decelerating body. The rotating body is composed of a rotating block and a conical block. A plurality of blades are provided on the outer wall of the rotating block, and an impact ball is provided at the bottom of the conical block. The impact ball is connected to the conical block through a pull rope.

[0013] Preferably, a condensation pipe is provided between adjacent two neutralization pipes. A recovery chamber is further provided outside the machine body, and the condensation pipe connects the hot air pipe and the recovery chamber.

[0014] Preferably, spiral threads are provided on both 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. The spiral thread radian on the side of the hot air pipe close to the cold air pipe is larger than the spiral thread radian on the side of the hot air pipe close to the low-temperature pipe.

[0015] Preferably, the distance between the spiral threads in the neutralization pipe and the hot air pipe is greater than the distance between the spiral threads in the condensation pipe and the hot air pipe.

[0016] Preferably, a heat insulation layer is provided between the low-temperature pipe and the reflux pipe.

[0017] During the process of the cold air being transported to the cold air pipe through the cold air port, the cold air will first flow through the decelerator. Since the cross-sectional diameter of the decelerator on the side close to the cold air port is larger than the cross-sectional diameter of the decelerator on the side far from the cold air port, when the cold air flows through the side of the decelerator close to the cold air port, the flow rate of the cold air increases. Then, when the cold air flow rate increases and flows, it will encounter the fan blades, causing the cold air to 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. Then, during the rotation of the conical block, it will pull the pull rope to drive the impact ball to rotate. The impact ball will move towards 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;

[0018] During the process of the cold air pushing the blades to rotate, the cold air is resisted by the blades, and then the flow rate of the cold air will decrease. When the cold air moves from the side of the decelerator close to the cold air port to the side of the decelerator far from the cold air port, the inner cavity volume of the cold air pipe becomes larger, 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 the sulfur trioxide gas, the flow rate of the cold air is less than the flow rate of the sulfur trioxide gas. Then, a flow rate difference is formed between the cold air and the sulfur trioxide gas;

[0019] In addition, the side of the hot air pipe close to the cold air pipe is provided with spiral threads, so that the sulfur trioxide gas will move along the spiral threads when flowing in the hot air pipe, and the spiral thread radian on the side of the hot air pipe close to the cold air pipe is larger, so that the contact area between the sulfur trioxide gas and the wall surface of the cold air pipe increases;

[0020] Under the condition that the contact area between the sulfur trioxide gas and the wall surface of the cold air pipe is large, there is a flow velocity 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 surface of the cold air pipe, thereby improving the heat transfer efficiency. And the flow rate of the cold air is appropriately slower, 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, and thus condense to form sulfur trioxide liquid beads;

[0021] The sulfur trioxide liquid beads condense on the spiral threads in the hot air pipe and spiral down along the spiral threads. During the condensation process, the impact ball continuously impacts the cold air pipe, and the generated vibration is transmitted to the surface of the hot air pipe through the machine body. Then, the vibration speeds up the moving speed of the sulfur trioxide liquid beads. Since the distance between the neutralization pipe and the spiral threads in the hot air pipe is greater than the distance between the condensation pipe and the spiral threads in the hot air pipe, when the sulfur trioxide liquid beads flow to the bottom of the hot air pipe, they can only flow into the condensation pipe and flow to the recovery cavity through the condensation pipe to realize the recovery of the sulfur trioxide liquid beads;

[0022] 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 spiral threads are also provided on the surface of the hot air pipe close to the low-temperature pipe, the cold air in the low-temperature pipe can still condense and cool the sulfur trioxide gas in the hot air pipe, thereby accelerating the condensation speed of the sulfur trioxide gas, 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 transportation of the cold air, the cold air outlet at the bottom of the low-temperature pipe is opened to ensure that the gas pressure in the cold air pipe and the low-temperature pipe is within the normal range;

[0023] The sulfur trioxide gas after condensation flows toward the side close to the connecting pipe. The sulfur trioxide gas flows from the connecting pipe to the conveying cavity and then is transported to the reflux pipe through the gas transmission pipe. At this time, the temperature of the sulfur trioxide gas in the reflux pipe is lower than that in the hot air pipe. The sulfur trioxide gas at a lower temperature is transported to the neutralization port through the reflux pipe. Then the sulfur trioxide gas at a lower temperature enters the hot air pipe again and then enters the neutralization cavity. The sulfur trioxide gases at two different temperatures are mixed in the neutralization cavity, so that the high-temperature sulfur trioxide gas input from the sulfur trioxide gas chamber is mixed with the low-temperature sulfur trioxide gas input from the reflux pipe, thereby realizing the pre-cooling of the sulfur trioxide gas. Further, the temperature of the sulfur trioxide gas after being transported to the hot air pipe is lower than the temperature before input, and the cooling and condensation time is further shortened, thereby further improving the condensation efficiency of the sulfur trioxide gas;

[0024] Since the heat insulation layer is provided between the low-temperature pipe and the reflux pipe, the heat exchange between the cold air in the low-temperature pipe and the sulfur trioxide gas in the reflux pipe is avoided, so that sulfur trioxide liquid beads do not condense on the wall surface of the reflux pipe.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] 1. Under the condition that the contact area between the sulfur trioxide gas and the wall surface of the cold air pipe is large, there is a flow differential 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 surface of the cold air pipe, thereby improving the heat transfer efficiency. And 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 long time, further improving the heat transfer efficiency, so that the sulfur trioxide gas can be cooled and condensed faster, and thus sulfur trioxide liquid beads are condensed.

[0027] 2. Sulfur trioxide liquid beads condense on the spiral threads in the hot gas pipe and move spirally downward along the spiral threads. During the condensation process, the impact balls continuously impact the cold gas pipe, and the generated vibration is transmitted to the surface of the hot gas pipe through the machine body. Furthermore, the vibration accelerates the moving speed of the sulfur trioxide liquid beads. After the sulfur trioxide gas is condensed and recovered, it avoids the emission of sulfur trioxide gas into the outside world, thus preventing damage to the ecological environment and ensuring the stability of the ecological environment.

[0028] 3. The delivery of cold air is utilized to drive the rotating block to rotate, thereby driving the impact ball to impact the wall surface of the cold gas pipe to generate vibration. The vibration is transmitted to the hot gas pipe, accelerating the flow of sulfur trioxide liquid beads. Moreover, the cold air flows from the cold gas pipe to the low-temperature pipe, causing the hot gas pipe to be wrapped by the cold gas pipe and the low-temperature pipe. Furthermore, double-sided condensation of the hot gas pipe is carried out, thereby improving the utilization rate of cold air, avoiding a large amount of energy consumption, and achieving an energy-saving effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a perspective view of the present invention;

[0030] Figure 2 is a front view of the present invention;

[0031] Figure 3 is a schematic diagram of the internal structure of the present invention;

[0032] Figure 4 is a front internal view of the present invention;

[0033] Figure 5 is a cross-sectional view of the present invention;

[0034] Figure 6 is a transverse cross-sectional view of the present invention;

[0035] Figure 7 is a schematic diagram of the internal structure of the cold gas pipe;

[0036] In the figure: 1, machine body; 2, cold gas pipe; 21, cold air inlet; 3, hot gas pipe; 31, neutralization chamber; 32, neutralization pipe; 33, hot air inlet; 4, low-temperature pipe; 41, low-temperature port; 5, return pipe; 51, delivery chamber; 52, connecting pipe; 53, gas transmission pipe; 54, neutralization port; 6, decelerating body; 7, rotating body; 71, rotating block; 72, conical block; 73, blade; 74, impact ball; 8, condensation pipe. DETAILED DESCRIPTION OF THE INVENTION

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] Embodiment: As Figures 1-7 shown, the present invention provides a technical solution for 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 one 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 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 gas chamber is arranged outside the body 1. An air pump is arranged inside the sulfur trioxide gas chamber. The air pump is connected to the hot air port 33 through a pipeline.

[0039] As a specific embodiment of the present invention, a low-temperature pipe 4 is arranged on one 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 at 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. The bottom of the low-temperature pipe 4 is connected to the cold air port 21 through the low-temperature ports 41.

[0040] Spiral threads are arranged on both 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. The spiral thread radian on the side of the hot air pipe 3 close to the cold air pipe 2 is greater than the spiral thread radian on the side of the hot air pipe 3 close to the low-temperature pipe 4.

[0041] As a specific embodiment of the present invention, a return pipe 5 is arranged on one side of the low-temperature pipe 4 away from the hot air pipe 3. A conveying chamber 51 is arranged at the top of the body 1. A plurality of connecting pipes 52 are arranged between the bottom of the conveying chamber 51 and the hot air pipe 3. The connecting pipes 52 connect the hot air pipe 3 and the conveying chamber 51. A heat insulation layer is arranged between the low-temperature pipe 4 and the return pipe 5.

[0042] As a specific embodiment of the present invention, a plurality of air delivery pipes 53 are arranged on the side wall of the conveying chamber 51. The air delivery pipes 53 connect the conveying chamber 51 and the return pipe 5. A hot air outlet is arranged at the top of the conveying chamber 51. 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 port 33 through the neutralization ports 54.

[0043] As a specific embodiment of the present invention, a decelerating body 6 is provided inside the cold air pipe 2. The decelerating body 6 is connected to the inner wall of the cold air pipe 2 through a bracket. The cross-sectional diameter of the decelerating body 6 on the side close to the cold air port 21 is larger than the cross-sectional diameter of the decelerating body 6 on the side far from the cold air port 21.

[0044] As a specific embodiment of the present invention, a rotating body 7 is provided on the side of the decelerating body 6 close to the cold air port 21. The rotating body 7 is rotatably connected to the decelerating body 6. The rotating body 7 is composed 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 through a pull rope.

[0045] As a specific embodiment of the present invention, a condensation pipe 8 is provided between two adjacent neutralizing pipes 32. A recovery cavity is further provided outside the machine body 1. The condensation pipe 8 connects the hot air pipe 3 and the recovery cavity. The distance between the spiral threads in the neutralizing pipe 32 and the hot air pipe 3 is greater than the distance between the spiral threads in the condensation pipe 8 and the hot air pipe 3.

[0046] The working principle of the present invention:

[0047] During the process of the cold air being transported to the cold air pipe 2 through the cold air port 21, the cold air will first flow through the decelerating body 6. Since the cross-sectional diameter of the decelerating body 6 on the side close to the cold air port 21 is larger than the cross-sectional diameter of the decelerating body 6 on the side far from the cold air port 21, when the cold air flows through the side of the decelerating body 6 close to the cold air port 21, the flow rate of the cold air increases. Then, when the cold air flow rate increases, it will encounter the fan blades 73, causing the cold air to push the blades 73 to rotate. When the blades 73 rotate, they will drive the rotating block 71 to rotate. When the rotating block 71 rotates, it will drive the conical block 72 to rotate. Then, during the rotation of the conical block 72, it will pull the pull rope to drive the impact ball 74 to rotate. The impact ball 74 will move towards the inner wall of the cold air pipe 2 under the action of centrifugal force, and then impact the inner wall of the cold air pipe 2 and generate vibration;

[0048] During the process of the cold air pushing the blades 73 to rotate, the cold air is resisted by the blades 73, so the flow rate of the cold air will decrease. When the cold air moves from the side of the decelerating body 6 close to the cold air port 21 to the side of the decelerating body 6 far 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 rate of the cold air will further decrease. Compared with the flow rate of the sulfur trioxide gas, the flow rate of the cold air is less than the flow rate of the sulfur trioxide gas. Then, a flow rate difference is formed between the cold air and the sulfur trioxide gas;

[0049] In addition, the side of the hot gas pipe 3 close to the cold gas pipe 2 is provided with spiral threads, so that when sulfur trioxide gas flows in the hot gas pipe 3, it will move along the spiral threads, and the spiral thread arc on the side of the hot gas pipe 3 close to the cold gas pipe 2 is relatively large, thus increasing the contact area between the sulfur trioxide gas and the wall surface of the cold gas pipe 2;

[0050] Under the condition that the contact area between the sulfur trioxide gas and the wall surface of the cold gas pipe 2 is relatively large, there is a flow differential between the sulfur trioxide gas and the cold gas, which can reduce the thickness of the thermal boundary layer between the sulfur trioxide gas and the wall surface of the cold gas pipe 2, and the flow rate of the cold gas is appropriately slower, which helps to maintain a relatively high temperature difference. In this way, the cold gas can exchange heat with the sulfur trioxide gas for a longer time, so that the sulfur trioxide gas can be cooled and condensed faster, and thus condensed into sulfur trioxide liquid beads;

[0051] The sulfur trioxide liquid beads condense on the spiral threads in the hot gas pipe 3 and move downward spirally along the spiral threads. During the condensation process, the impact ball 74 continuously impacts the cold gas pipe 2, and the generated vibration is transmitted to the surface of the hot gas pipe 3 through the machine body 1. Then the vibration speeds up the moving speed of the sulfur trioxide liquid beads. Since the distance between the neutralizing pipe 32 and the spiral threads in the hot gas pipe 3 is greater than the distance between the condensing pipe 8 and the spiral threads in the hot gas pipe 3, when the sulfur trioxide liquid beads flow to the bottom of the hot gas pipe 3, they can only flow into the condensing pipe 8 and flow to the recovery cavity through the condensing pipe 8, realizing the recovery of the sulfur trioxide liquid beads;

[0052] The cold gas in the cold gas pipe 2 flows upward and then flows from the cold gas pipe 2 to the low-temperature pipe 4. Since the side surface of the hot gas pipe 3 close to the low-temperature pipe 4 is also provided with spiral threads, the cold gas in the low-temperature pipe 4 can still cool and condense the sulfur trioxide gas in the hot gas pipe 3. Finally, the cold gas in the low-temperature pipe 4 is conveyed back to the cold gas port 21 through the low-temperature port 41, and then enters the cold gas pipe 2 again to condense the sulfur trioxide gas. During the conveying process of the cold gas, the cold gas outlet at the bottom of the low-temperature pipe 4 is opened, so as to ensure that the gas pressure in the cold gas pipe 2 and the low-temperature pipe 4 is within the normal range;

[0053] The sulfur trioxide gas after condensation flows towards the side close to the communication pipe 52. The sulfur trioxide gas flows from the communication pipe 52 into the conveying cavity 51, and then is conveyed to the reflux pipe 5 through the gas conveying pipe 53. At this time, the temperature of the sulfur trioxide gas in the reflux pipe 5 is lower than that of the sulfur trioxide gas in the hot gas pipe 3. The sulfur trioxide gas at a lower temperature is conveyed to the neutralization port 54 through the reflux pipe 5. Furthermore, the sulfur trioxide gas at a lower temperature enters the hot gas pipe 3 again and then enters the neutralization cavity 31. The sulfur trioxide gases at two different temperatures are mixed in the neutralization cavity 31, so that the high-temperature sulfur trioxide gas input from the sulfur trioxide gas chamber is mixed with the low-temperature sulfur trioxide gas input from the reflux pipe 5, thereby realizing the pre-cooling of the sulfur trioxide gas. Furthermore, the temperature of the sulfur trioxide gas after being conveyed to the hot gas pipe 3 is lower than the temperature before input;

[0054] Since a heat insulation layer is provided between the low-temperature pipe 4 and the reflux pipe 5, heat exchange between the cold air in the low-temperature pipe 4 and the sulfur trioxide gas in the reflux pipe 5 is avoided, so that sulfur trioxide liquid beads do not condense on the wall surface of the reflux pipe 5.

[0055] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

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; 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, and 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); 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.

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 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.

6. 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).

7. The sulfur trioxide condenser with intelligent differential heat exchange function according to claim 6, 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).

8. 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).

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