Heat exchanger and method for preparing rare gas

Abstract

The invention discloses a heat exchanger and method for rare gas preparation, and relates to the technical field of heat exchangers, the heat exchanger comprises a heat exchange mechanism, the outer surface wall of the heat exchange mechanism is sleeved with a cleaning structure, the input end of the heat exchange mechanism communicates with a feeding mechanism, and an aeration mechanism is inserted into the inner surface wall of the heat exchange mechanism. In the cleaning process, the second air pump conveys outside air to the aeration ball, so that a large number of bubbles are formed in cleaning liquid, dirt is cleaned by means of tiny shock waves and high-speed micro jet flow generated during bubble movement and breakage, and the ultrasonic generator can release sound wave energy; the synergistic effect of bubbles and sound waves greatly improves the cleaning efficiency and effect, enhances the stripping capacity of dirt on the inner wall of the heat exchanger, ensures that rare gas is not polluted in the heat exchange process, maintains the high purity of the rare gas, keeps the inner wall of the heat exchanger smooth, and improves the heat transfer efficiency, so that the cooling or heating speed of the rare gas is increased, and the service life of the heat exchanger is prolonged. The efficiency of the whole preparation process is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of heat exchangers, and particularly to a heat exchanger and a method for preparing rare gases. Background Art

[0002] A heat exchanger is a device used to transfer heat between two or more fluids at different temperatures. Through effective heat exchange, the transfer and utilization of energy are achieved. Its core function is to promote the transfer of heat energy from a high-temperature fluid to a low-temperature fluid through a solid wall surface or direct contact without mixing the fluids. It is widely used in fields such as chemical engineering, petroleum, electric power, food processing, heating, ventilation, air conditioning, and refrigeration. According to the heat transfer principle and structural form, heat exchangers can be divided into types such as shell-and-tube heat exchangers, regenerative heat exchangers, and hybrid heat exchangers.

[0003] After the existing heat exchanger operates for a long time, pollutants such as dust, oil stains, and corrosive gases in the air will gradually deposit on the surface of the heat exchanger, gradually forming a thermal resistance layer, which significantly hinders heat transfer. This process leads to a significant reduction in the heat transfer efficiency, thereby greatly increasing the energy consumption during the preparation of rare gases and decreasing the production efficiency. In addition, the corrosive components in the pollutants will chemically react with the heat exchanger material, accelerating equipment corrosion. Corrosion not only shortens the service life of the equipment but may also cause leakage, resulting in the loss of rare gases and even posing a safety hazard. Summary of the Invention

[0004] The purpose of the present invention is to provide a heat exchanger for preparing rare gases. Through the combined action of the bubbles generated by the aeration balls and the sound waves released by the ultrasonic vibrators in the cleaning liquid, the turbulence and impact force of the bubbles are superimposed on the energy of the sound waves, enhancing the ability to peel off the dirt on the inner wall of the heat exchanger, so as to solve the technical problems proposed in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A heat exchanger for preparing rare gases, including a heat exchange mechanism, a cleaning structure is sleeved on the outer surface wall of the heat exchange mechanism, a feeding mechanism is connected to the input end of the heat exchange mechanism, and an aeration mechanism is inserted into the inner surface wall of the heat exchange mechanism; The cleaning structure includes a plurality of outer rings. An ultrasonic generator is installed between the outer surface walls of the plurality of outer rings. The output end of the ultrasonic generator is connected to a plurality of conductors, and the outer surface walls of the plurality of conductors are inserted into the interior of the outer rings. The output ends of the plurality of conductors are all connected to a group of ultrasonic transducers. One side of the outer wall of each group of ultrasonic transducers is equipped with a horn, and one side of the outer wall of each group of horns is equipped with an ultrasonic vibrator. A group of sealing rings are adhesively attached to the inner surface walls of the plurality of outer rings, and the inner surface walls of the plurality of groups of sealing rings are movably inserted with the outer surface walls of the ultrasonic transducers; The heat exchange mechanism includes a housing, with multiple outer rings sleeved between their outer walls and the outer wall of the housing. A set of support legs is installed at the bottom of the housing, and a gas discharge valve is connected to the output end of the housing.

[0006] Preferably, a heat exchange medium discharge valve is fixedly connected to the output end of the housing, a heat exchange medium inlet valve is fixedly connected to the input end of the housing. Two sets of mounting holes one are provided on the outer wall of the housing, and multiple sets of mounting holes two are provided on the outer wall of the housing. The inner walls of the multiple sets of mounting holes two are adhesively connected to the outer walls of the sealing rings.

[0007] Preferably, a partition plate one is fixedly inserted into the inner wall of the housing, a partition plate two is fixedly inserted into the inner wall of the housing, and multiple heat exchange tubes are fixedly inserted into the inner wall of the partition plate two.

[0008] Preferably, a set of heat dissipation fins is fixedly sleeved between the outer walls of the multiple heat exchange tubes, and the outer walls of the set of heat dissipation fins are fixedly inserted into the inner wall of the housing. Tooth-shaped plates are fixedly installed on one side of the outer walls of the set of heat dissipation fins.

[0009] Preferably, the feeding mechanism includes a feeding pipeline, the output end of the feeding pipeline is fixedly connected to the input end of the housing, a three-way valve is fixedly connected to the input end of the feeding pipeline, a gas delivery pipe one is fixedly connected to the input end of the three-way valve, and an air pump one is fixedly connected to the input end of the gas delivery pipe one.

[0010] Preferably, a gas delivery pipe two is fixedly connected to the input end of the air pump one, a liquid delivery pipe one is fixedly connected to the input end of the three-way valve, a water pump one is fixedly connected to the input end of the liquid delivery pipe one, and a liquid delivery pipe two is fixedly connected to the input end of the water pump one.

[0011] Preferably, the aeration mechanism includes two gas delivery pipes three, the outer walls of the gas delivery pipes three are fixedly inserted between the inner walls of the two sets of mounting holes one, the output ends of the two gas delivery pipes three are fixedly connected to aeration balls, and a connecting pipe is fixedly connected between the input ends of the two gas delivery pipes three.

[0012] Preferably, an air pump two is fixedly connected to the input end of the connecting pipe, a gas delivery pipe four is fixedly connected to the input end of the air pump two, a processor is fixedly connected to the input end of the gas delivery pipe four, a set of air inlet holes is provided at the top of the processor, and a metal filter screen is fixedly inserted into the inner wall of the processor.

[0013] Preferably, an activated carbon filter screen is fixedly inserted into the inner wall of the processor, a set of heaters is provided on the inner wall of the processor, and a set of ultraviolet lamps is provided on the inner wall of the processor.

[0014] A method for using a heat exchanger for preparing rare gases, comprising the following steps: Step 1: When cleaning the heat exchanger, the user first rotates the three-way valve to close the gas delivery pipe 1, and then starts the water pump 1. At this time, the water pump 1 will draw out the cleaning liquid through the liquid delivery pipe 2, and inject it into the interior of the housing through the liquid delivery pipe 1, the three-way valve and the feed pipe to clean the dirt inside the housing; Step 2: The air pump 2 draws out the air inside the processor through the gas delivery pipe 4. Then, the outside air enters the processor, is sterilized and disinfected by the processor, and then the treated air comes to the inside of the air bubble exposure ball and is discharged through the air bubble exposure ball, forming a large number of bubbles in the water. By means of the energy when the bubbles and the bubbles burst, the cleaning effect on the heat exchanger is improved; Step 3: The ultrasonic generator is started synchronously, and the current signal is transmitted to the ultrasonic transducer through the conductor. At this time, the ultrasonic transducer converts the high-frequency electrical signal into mechanical vibration, and with the help of the horn and the ultrasonic vibrator installed on one side of the outer wall, the ultrasonic wave is transmitted into the cleaning liquid to achieve the purpose of cleaning without dead corners and high efficiency; Step 4: After the cleaning work is completed, the gas discharge valve can be opened to discharge the cleaning liquid. At this time, the air pump 2 still continuously injects air into the housing. At this time, the heater is started, and by heating the air, the hot air dries the water droplets inside the housing to prevent the inner wall of the heat exchanger from being corroded, and also avoid the influence of residual droplets on the subsequent gas heat exchange.

[0015] Compared with the prior art, the beneficial effects of the present invention are: In the present invention, during the cleaning process, the air pump 2 transports the outside air to the air bubble exposure ball, thereby forming a large number of bubbles in the cleaning liquid. By means of the tiny shock waves and high-speed microjets generated during the movement and rupture of the bubbles, the dirt is cleaned. The ultrasonic generator can release sound wave energy. The synergistic effect of the bubbles and the sound waves greatly improves the cleaning efficiency and effect, enhances the ability to peel off the dirt on the inner wall of the heat exchanger, ensures that the rare gas is not polluted during the heat exchange process, maintains its high purity, and keeps the inner wall of the heat exchanger smooth, improves the heat transfer efficiency, thereby accelerating the cooling or heating speed of the rare gas and improving the efficiency of the entire preparation process.

[0016] In the present invention, a "one pipe for multiple uses" design is adopted. The feed pipe is used to transport the heat exchange air and the cleaning liquid at different stages respectively, and the mode switching is realized through the three-way valve, replacing the traditional double-pipe system, reducing the use and installation workload of materials such as pipes and valves.

[0017] In the present invention, after the cleaning is completed, the heater is started to heat the air entering the interior of the housing. The hot air circulates inside the housing, quickly drying the moisture and chemical substances on the inner wall, and avoiding the reaction of the residual moisture or chemical substances with the metal surface, resulting in corrosion or scaling. Description of the Drawings

[0018] Figure 1 This is the perspective view of the front view structure in a heat exchanger for preparing rare gases according to the present invention; Figure 2 This is the plan view of the heat exchange mechanism in a heat exchanger for preparing rare gases according to the present invention; Figure 3 This is the sectional view of the heat exchange mechanism in a heat exchanger for preparing rare gases according to the present invention; Figure 4 This is the perspective view from above of the cleaning structure in a heat exchanger for preparing rare gases according to the present invention; Figure 5 This is the exploded perspective view of the cleaning structure in a heat exchanger for preparing rare gases according to the present invention; Figure 6 This is the perspective view of the feeding mechanism in a heat exchanger for preparing rare gases according to the present invention; Figure 7 This is the schematic perspective view of the aeration mechanism in a heat exchanger for preparing rare gases according to the present invention; Figure 8 This is the sectional view of the aeration mechanism in a heat exchanger for preparing rare gases according to the present invention; Figure 9 This is the sectional view of the heat exchange mechanism, cleaning structure and aeration mechanism in a heat exchanger for preparing rare gases according to the present invention.

[0019] In the figure: 1. Heat exchange mechanism; 101. Outer shell; 102. Support legs; 103. Gas discharge valve; 104. Heat exchange medium discharge valve; 105. Heat exchange medium inlet valve; 106. Mounting hole 1; 107. Mounting hole 2; 108. Partition plate 1; 109. Partition plate 2; 110. Heat exchange tubes; 111. Heat sinks; 112. Toothed plate; 2. Cleaning structure; 201. Outer ring; 202. Ultrasonic generator; 203. Conductor; 204. Ultrasonic transducer; 205. Horn; 206. Ultrasonic vibrator; 207. Sealing ring; 3. Feeding mechanism; 301. Feeding pipeline; 302. Three-way valve; 303. Gas delivery pipe 1; 304. Air pump 1; 305. Gas delivery pipe 2; 306. Liquid delivery pipe 1; 307. Water pump 1; 308. Liquid delivery pipe 2; 4. Aeration mechanism; 401. Gas delivery pipe 3; 402. Aeration ball; 403. Connecting pipe; 404. Air pump 2; 405. Gas delivery pipe 4; 406. Processor; 407. Air inlet hole; 408. Metal filter screen; 409. Activated carbon filter screen; 410. Heater; 411. Ultraviolet lamp. Detailed implementation manners

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] Embodiment 1: Refer to Figure 1 - Figure 9 As shown in the figure, the present invention provides a heat exchanger for rare gas preparation, which includes a heat exchange mechanism 1. A cleaning structure 2 is fixedly sleeved on the outer surface wall of the heat exchange mechanism 1. The input end of the heat exchange mechanism 1 is fixedly communicated with a feeding mechanism 3. An aeration mechanism 4 is fixedly inserted into the inner surface wall of the heat exchange mechanism 1. The heat exchange mechanism 1 includes a housing 101. Between the outer surface walls of multiple outer rings 201, they are fixedly sleeved with the outer surface wall of the housing 101. A set of support legs 102 are fixedly installed at the bottom of the housing 101. The output end of the housing 101 is fixedly communicated with a gas discharge valve 103. The output end of the housing 101 is fixedly communicated with a heat exchange medium discharge valve 104. The input end of the housing 101 is fixedly communicated with a heat exchange medium feed valve 105. Two groups of mounting holes 106 are opened on the outer surface wall of the housing 101. Multiple groups of mounting holes 107 are opened on the outer surface wall of the housing 101. The inner surface walls of the multiple groups of mounting holes 107 are adhesively connected to the outer surface walls of the sealing rings 207. A partition plate 108 is fixedly inserted into the inner surface wall of the housing 101. A partition plate 109 is fixedly inserted into the inner surface wall of the housing 101. Multiple heat exchange tubes 110 are fixedly inserted into the inner surface wall of the partition plate 109. A set of heat dissipation fins 111 are fixedly sleeved between the outer surface walls of the multiple heat exchange tubes 110. And between the outer surface walls of the set of heat dissipation fins 111, they are fixedly inserted into the inner surface wall of the housing 101. Tooth-shaped plates 112 are fixedly installed on one side of the outer walls of the set of heat dissipation fins 111. The cleaning structure 2 includes multiple outer rings 201. An ultrasonic generator 202 is fixedly installed between the outer surface walls of the multiple outer rings 201. The output end of the ultrasonic generator 202 is fixedly communicated with multiple conductors 203. And the outer surface walls of the multiple conductors 203 are fixedly inserted into the inside of the outer rings 201. The output ends of the multiple conductors 203 are fixedly communicated with a set of ultrasonic transducers 204. Horns 205 are fixedly installed on one side of the outer walls of the multiple sets of ultrasonic transducers 204. Ultrasonic vibrators 206 are fixedly installed on one side of the outer walls of the multiple sets of horns 205. A set of sealing rings 207 are adhesively connected to the inner surface walls of the multiple outer rings 201. And the inner surface walls of the multiple sets of sealing rings 207 are movably inserted with the outer surface walls of the ultrasonic transducers 204. The aeration mechanism 4 includes two gas delivery pipes III 401, and the outer walls of the two groups of mounting holes I 106 are fixedly inserted with the outer walls of the gas delivery pipes III 401. The output ends of the two gas delivery pipes III 401 are fixedly communicated with aeration balls 402. A communicating pipe 403 is fixedly communicated between the input ends of the two gas delivery pipes III 401. The input end of the communicating pipe 403 is fixedly communicated with an air pump II 404. The input end of the air pump II 404 is fixedly communicated with a gas delivery pipe IV 405. The input end of the gas delivery pipe IV 405 is fixedly communicated with a processor 406. A group of air inlet holes 407 are formed in the top of the processor 406. A metal filter screen 408 is fixedly inserted into the inner wall of the processor 406. An activated carbon filter screen 409 is fixedly inserted into the inner wall of the processor 406. A group of heaters 410 are arranged on the inner wall of the processor 406. A group of ultraviolet lamps 411 are arranged on the inner wall of the processor 406.

[0022] In this embodiment, when the user needs to clean the inside of the heat exchanger, the cleaning liquid can be first injected into the inside of the housing 101 through the feed pipe 301. After the cleaning liquid fills the housing 101, the second air pump 404 starts to work. The outside air is inhaled into its interior through the fourth gas delivery pipe 405 and delivered into the connecting pipe 403. The gas in the middle of the connecting pipe 403 will be divided into two parts and enter the two third gas delivery pipes 401 respectively. As the gas advances inside the third gas delivery pipe 401, it will reach the inside of the air bubble ball 402 at the end of the third gas delivery pipe 401. Since the air bubble ball 402 is immersed in the cleaning liquid at this time and a plurality of nozzles are provided on the outer wall, the gas inside will be discharged from the inside of the air bubble ball 402 under the action of pressure at this time and a large number of fine bubbles will be formed in the cleaning liquid. When the bubbles move in the liquid, tiny turbulences and impact forces will be generated, thereby effectively peeling off the dirt, deposits or biofilms on the inner wall of the heat exchanger. A toothed plate 112 is fixedly installed on one side of the outer wall of the heat sink 111. When a large number of bubbles come into contact with the toothed plate 112, they start to burst, generating tiny shock waves and high-speed microjets, which can directly impact the dirt on the inner wall of the heat exchanger and break the adhesion between the dirt and the wall surface, thereby peeling off the dirt more effectively. At the same time, the ultrasonic generator 202 starts to operate, generates a high-frequency electrical signal through the oscillation circuit, and transmits the corresponding current signal to the ultrasonic transducer 204 through the outer ring 201. After receiving the signal, the ultrasonic transducer 204 uses the inverse piezoelectric effect of the piezoelectric ceramic to convert the high-frequency electrical signal into mechanical vibration, and transmits the mechanical vibration to the horn 205 to further amplify the amplitude. Finally, the ultrasonic vibrator 206 is driven by the horn 205 and continuously vibrates in the cleaning liquid. The released acoustic energy can cover the inner wall of the heat exchanger without dead angles of 360°, ensuring the thorough cleaning of complex structures such as tube bundles and fins, and can also effectively peel off stubborn dirt such as oil stains, water scales and biofilms attached to the surface of the heat exchanger. The synergistic effect of the bubbles and the sound waves significantly increases the energy density in the cleaning liquid. Compared with a single cleaning method, the cleaning efficiency and effect have been greatly improved, and the bubbles and the sound waves transmit energy through the liquid medium, avoiding damage to the metal surface of the heat exchanger caused by mechanical scraping. After the cleaning is completed, the gas discharge valve 103 can be opened to discharge the cleaning liquid and pollutants.

[0023] Embodiment 2: According to Figures 1-3 and Figure 6As shown in the figure, the heat exchange mechanism 1 includes a housing 101. The outer walls of multiple outer rings 201 are fixedly sleeved with the outer wall of the housing 101. A set of support legs 102 are fixedly installed at the bottom of the housing 101. The output end of the housing 101 is fixedly communicated with a gas discharge valve 103. The output end of the housing 101 is fixedly communicated with a heat exchange medium discharge valve 104. The input end of the housing 101 is fixedly communicated with a heat exchange medium inlet valve 105. Two groups of mounting holes one 106 are formed on the outer wall of the housing 101. Multiple groups of mounting holes two 107 are formed on the outer wall of the housing 101. The inner walls of the multiple groups of mounting holes two 107 are adhered to the outer wall of the sealing ring 207. A partition plate one 108 is fixedly inserted into the inner wall of the housing 101. A partition plate two 109 is fixedly inserted into the inner wall of the housing 101. A plurality of heat exchange tubes 110 are fixedly inserted into the inner wall of the partition plate two 109. A set of heat dissipation fins 111 are fixedly sleeved between the outer walls of the multiple heat exchange tubes 110. The outer walls of the set of heat dissipation fins 111 are fixedly inserted into the inner wall of the housing 101. Tooth-shaped plates 112 are fixedly installed on one side of the outer walls of the set of heat dissipation fins 111; The feeding mechanism 3 includes a feeding pipeline 301. The output end of the feeding pipeline 301 is fixedly communicated with the input end of the housing 101. The input end of the feeding pipeline 301 is fixedly communicated with a three-way valve 302. The input end of the three-way valve 302 is fixedly communicated with a gas delivery pipe one 303. The input end of the gas delivery pipe one 303 is fixedly communicated with an air pump one 304. The input end of the air pump one 304 is fixedly communicated with a gas delivery pipe two 305. The input end of the three-way valve 302 is fixedly communicated with a liquid delivery pipe one 306. The input end of the liquid delivery pipe one 306 is fixedly communicated with a water pump one 307. The input end of the water pump one 307 is fixedly communicated with a liquid delivery pipe two 308.

[0024] In this embodiment, when the heat exchanger is operating normally, the first air pump 304 is started. The required heat-exchange air is extracted through the second gas delivery pipe 305. Subsequently, the air is conveyed by the first air pump 304 into the first gas delivery pipe 303 and continues to move forward under pressure. It reaches the feed pipe 301 through the three-way valve 302. The feed pipe 301 drives the gas into the housing 101 for heat exchange. At this time, the heat-exchange medium enters the first end of the housing 101 through the heat-exchange medium feed valve 105. Blocked by the first partition plate 108, the heat-exchange medium enters the heat-exchange tube 110 and exchanges heat with the air through the heat-exchange tube 110. Finally, the heat-exchanged heat-exchange medium and air are discharged through the heat-exchange medium discharge valve 104 and the gas discharge valve 103 respectively. When the user needs to clean the inner wall of the housing 101, only need to rotate the three-way valve 302 to block the first gas delivery pipe 303 and connect it to the first liquid delivery pipe 306. After the first water pump 307 is started, the cleaning liquid is extracted through the second liquid delivery pipe 308. Subsequently, the cleaning liquid reaches the inside of the three-way valve 302 through the first liquid delivery pipe 306. This solution significantly reduces the construction cost through the design of "one pipe for multiple uses", saves the procurement costs of pipeline materials, valves and thermal insulation materials, reduces the installation man-hours at the same time, simplifies the space layout, and avoids the problem of space occupation caused by the double-pipeline system. On the other hand, the integrated design of the three-way valve 302 improves the system maintenance efficiency and reduces the operation risks and leakage points caused by frequent pipeline disassembly.

[0025] Embodiment 3: According to Figures 1-3 and Figures 7-9 As shown, the aeration mechanism 4 includes two third gas delivery pipes 401. The outer walls of the two third gas delivery pipes 401 are fixedly inserted between the inner walls of the two groups of first mounting holes 106. The output ends of the two third gas delivery pipes 401 are fixedly communicated with aeration balls 402. A communicating pipe 403 is fixedly communicated between the input ends of the two third gas delivery pipes 401. The input end of the communicating pipe 403 is fixedly communicated with a second air pump 404. The input end of the second air pump 404 is fixedly communicated with a fourth gas delivery pipe 405. The input end of the fourth gas delivery pipe 405 is fixedly communicated with a processor 406. A group of air inlets 407 are opened at the top of the processor 406. A metal filter screen 408 is fixedly inserted into the inner wall of the processor 406. An activated carbon filter screen 409 is fixedly inserted into the inner wall of the processor 406. A group of heaters 410 are arranged on the inner wall of the processor 406. A group of ultraviolet lamps 411 are arranged on the inner wall of the processor 406.

[0026] In this embodiment, after the second air pump 404 is started, the internal air of the processor 406 is extracted through the fourth gas delivery pipe 405 to form a negative pressure. Subsequently, the outside air will, under the action of pressure, pass through the air inlet hole 407 and enter the inside of the processor 406. The gas begins to descend inside the processor 406 and passes through two layers of filters. The metal filter 408 can effectively intercept pollutants in the air, and the activated carbon filter 409 can intercept fine particles and sterilize and deodorize the air. At this time, the ultraviolet lamp 411 starts to operate to further disinfect and sterilize the air. The device filters and disinfects the air entering the inside of the housing 101, which can prevent the housing 101 from being re-polluted by the air during the cleaning process, thus affecting the cleaning effect. After the cleaning is completed, the heater 410 is started to heat the air entering the inside of the housing 101, so as to quickly dry the inner wall of the housing 101 and prevent the residual moisture or chemical substances from reacting with the metal surface, resulting in corrosion or scaling.

[0027] The working principle of the whole mechanism is as follows: When the heat exchanger is in normal working condition, air pump 1 304 starts, and draws in the air to be heat-exchanged through gas delivery pipe 2 305. Then the air is transported by air pump 1 304 into gas delivery pipe 1 303, and continues to move forward under the push of pressure, enters the feed pipeline 301 through the three-way valve 302. The feed pipeline 301 drives the gas into the interior of the outer shell 101 for heat exchange. At the same time, the heat exchange medium enters the first end of the outer shell 101 through the heat exchange medium feed valve 105. Blocked by the first partition plate 108, it flows into the interior of the heat exchange tube 110 and exchanges heat with the air through the heat exchange tube 110. Finally, the heat-exchanged heat exchange medium and air are discharged through the heat exchange medium discharge valve 104 and the gas discharge valve 103 respectively. When the user needs to clean the inner wall of the outer shell 101, just rotate the three-way valve 302 to block the gas delivery pipe 1 303 and connect it to the liquid delivery pipe 1 306. After the water pump 1 307 starts, it draws in the cleaning liquid through the liquid delivery pipe 2 308. The cleaning liquid enters the interior of the three-way valve 302 through the liquid delivery pipe 1 306. After the outer shell 101 is filled with the cleaning liquid, air pump 2 404 starts to work, draws in the air inside the processor 406 through the gas delivery pipe 4 405 to form a negative pressure. Subsequently, the outside air enters the interior of the processor 406 through the air inlet hole 407 under the action of pressure. The gas descends inside the processor 406 and passes through two layers of filter meshes. The metal filter mesh 408 effectively intercepts the pollutants in the air, and the activated carbon filter mesh 409 intercepts the fine particles and sterilizes and deodorizes the air. At this time, the ultraviolet lamp 411 starts to further disinfect and sterilize the air. The device filters and disinfects the air entering the interior of the outer shell 101, which can prevent the outer shell 101 from being re-polluted by the air during the cleaning process and affecting the cleaning effect. After the outside air is inhaled through the gas delivery pipe 4 405, it is transported into the connecting pipe 403. The gas in the middle of the connecting pipe 403 is divided into two parts and enters the two gas delivery pipes 3 401 respectively. The gas moves forward inside the gas delivery pipe 3 401 and reaches the interior of the air bubble generator 402 at the end of the gas delivery pipe 3 401. Since the air bubble generator 402 is immersed in the cleaning liquid and has a plurality of nozzles on its outer wall, the internal gas is discharged from the interior of the air bubble generator 402 under the action of pressure, forming a large number of fine bubbles in the cleaning liquid. When the bubbles move in the liquid, they generate tiny turbulences and impact forces, effectively peeling off the dirt, sediment or biofilm on the inner wall of the heat exchanger. On one side of the outer wall of the heat sink 111, a toothed plate 112 is fixedly installed. When a large number of bubbles contact the toothed plate 112, they burst, generating tiny shock waves and high-speed microjets, directly impacting the dirt on the inner wall of the heat exchanger. At the same time, the ultrasonic generator 202 starts, generates a high-frequency electrical signal through the oscillation circuit, and transmits the current signal to the ultrasonic transducer 204 through the outer ring 201. After receiving the signal, the ultrasonic transducer 204 uses the inverse piezoelectric effect of the piezoelectric ceramic to convert the high-frequency electrical signal into mechanical vibration, which is transmitted to the horn 205 to further amplify the amplitude. Finally, the ultrasonic vibrator 206 is driven by the horn 205 and continuously vibrates in the cleaning liquid.The released acoustic energy can cover the inner wall of the heat exchanger without dead angles in 360°, ensuring thorough cleaning of complex structures such as the tube bundle and fins. After the cleaning is completed, open the gas discharge valve 103 to discharge the cleaning liquid and pollutants. Then, start the heater 410 to heat the air entering the interior of the housing 101, quickly drying the inner wall of the housing 101 to prevent residual moisture or chemical substances from reacting with the metal surface, resulting in corrosion or scaling.

[0028] The present invention also provides a method for using a heat exchanger for preparing rare gases, comprising the following steps: Step 1: When cleaning the heat exchanger, the user first rotates the three-way valve 302 to close the gas delivery pipe 1 303, and then starts the water pump 1 307. At this time, the water pump 1 307 will draw out the cleaning liquid through the liquid delivery pipe 2 308 and inject it into the interior of the housing 101 through the liquid delivery pipe 1 306, the three-way valve 302, and the feed pipe 301 to clean the dirt inside the housing 101. Step 2: The air pump 2 404 draws the air inside the processor 406 through the gas delivery pipe 4 405. The outside air then enters the interior of the processor 406 and is sterilized and disinfected by the processor 406. Subsequently, the treated air reaches the air bubble generator 402 and is discharged through the air bubble generator 402, forming a large number of bubbles in the water. By means of the energy when the bubbles and the bubbles burst, the cleaning effect on the heat exchanger is improved. Step 3: The ultrasonic generator 202 is started synchronously, and the current signal is transmitted to the ultrasonic transducer 204 through the conductor 203. At this time, the ultrasonic transducer 204 converts the high-frequency electrical signal into mechanical vibration, and with the help of the horn 205 and the ultrasonic vibrator 206 installed on one side of the outer wall, the ultrasonic wave is transmitted into the cleaning liquid to achieve the purpose of dead-angle-free and high-efficiency cleaning. Step 4: After the cleaning work is completed, the gas discharge valve 103 can be opened to discharge the cleaning liquid. At this time, the air pump 2 404 still continuously injects air into the housing 101. At this time, the heater 410 is started, and by heating the air, the hot air dries the water droplets inside the housing 101, preventing the inner wall of the heat exchanger from being corroded and also avoiding the influence of residual droplets on subsequent gas heat exchange.

[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A heat exchanger for preparing rare gas, comprising a heat exchange mechanism (1), characterized in that: The outer surface wall of the heat exchange mechanism (1) is provided with a cleaning structure (2), the input end of the heat exchange mechanism (1) is connected with a feeding mechanism (3), and the inner surface wall of the heat exchange mechanism (1) is provided with an aeration mechanism (4); The cleaning structure (2) comprises a plurality of outer rings (201), an ultrasonic generator (202) is installed between the outer surfaces of the plurality of outer rings (201), the output end of the ultrasonic generator (202) is connected to a plurality of conductors (203), and the outer surfaces of the plurality of conductors (203) are inserted into the interior of the outer ring (201), the output ends of the plurality of conductors (203) are connected to a group of ultrasonic transducers (204), a horn (205) is installed on one side of the outer walls of the plurality of groups of ultrasonic transducers (204), an ultrasonic vibrator (206) is installed on one side of the outer walls of the plurality of groups of horn (205), a group of sealing rings (207) are adhered to the inner surfaces of the plurality of outer rings (201), and the inner surfaces of the plurality of groups of sealing rings (207) are movably inserted into the outer surfaces of the ultrasonic transducers (204); The heat exchange mechanism (1) comprises an outer shell (101), the outer walls of the plurality of outer rings (201) being sleeved with the outer wall of the outer shell (101), a group of support legs (102) being installed at the bottom of the outer shell (101), and the output end of the outer shell (101) being connected to a gas discharge valve (103).

2. A heat exchanger for preparing rare gas according to claim 1, characterized in that: The output end of the shell (101) is fixedly connected to a heat exchange medium discharge valve (104), and the input end of the shell (101) is fixedly connected to a heat exchange medium feed valve (105). The outer wall of the shell (101) is provided with two groups of first mounting holes (106), and the outer wall of the shell (101) is provided with multiple groups of second mounting holes (107). The inner walls of the multiple groups of second mounting holes (107) are all bonded to the outer wall of the sealing ring (207).

3. A heat exchanger for preparing rare gas according to claim 2, characterized in that: A first partition plate (108) is fixedly inserted into the inner surface wall of the outer shell (101), a second partition plate (109) is fixedly inserted into the inner surface wall of the outer shell (101), and a plurality of heat exchange tubes (110) are fixedly inserted into the inner surface wall of the second partition plate (109).

4. A heat exchanger for preparing rare gas according to claim 3, characterized in that: A group of heat sinks (111) is fixedly sleeved between the outer surfaces of the plurality of heat exchange tubes (110), and the outer surfaces of the group of heat sinks (111) are fixedly inserted between the inner surface of the housing (101), and a toothed plate (112) is fixedly mounted on one side of the outer wall of the group of heat sinks (111).

5. A heat exchanger for preparing rare gas according to claim 4, characterized in that: The feeding mechanism (3) comprises a feeding pipeline (301), the output end of the feeding pipeline (301) is fixedly connected to the input end of the housing (101), the input end of the feeding pipeline (301) is fixedly connected to a three-way valve (302), the input end of the three-way valve (302) is fixedly connected to a gas delivery pipe 1 (303), and the input end of the gas delivery pipe 1 (303) is fixedly connected to an air pump 1 (304).

6. A heat exchanger for preparing rare gas according to claim 5, characterized in that: The input end of the air pump 1 (304) is fixedly connected to the gas delivery pipe 2 (305), the input end of the three-way valve (302) is fixedly connected to the liquid delivery pipe 1 (306), the input end of the liquid delivery pipe 1 (306) is fixedly connected to the water pump 1 (307), and the input end of the water pump 1 (307) is fixedly connected to the liquid delivery pipe 2 (308).

7. A heat exchanger for preparing rare gas according to claim 6, characterized in that: The aeration mechanism (4) comprises two gas delivery pipes three (401), the inner walls of the two groups of mounting holes one (106) are fixedly inserted into the outer wall of the gas delivery pipe three (401), the output ends of the two gas delivery pipes three (401) are fixedly connected to an aeration ball (402), and the input ends of the two gas delivery pipes three (401) are fixedly connected to a connecting pipe (403).

8. A heat exchanger for preparing rare gas according to claim 7, characterized in that: The input end of the connecting tube (403) is fixedly connected to an air pump 2 (404), the input end of the air pump 2 (404) is fixedly connected to a gas delivery tube 4 (405), the input end of the gas delivery tube 4 (405) is fixedly connected to a processor (406), a group of air inlet holes (407) are opened on the top of the processor (406), and a metal filter (408) is fixedly inserted into the inner surface wall of the processor (406).

9. A heat exchanger for preparing rare gas according to claim 8, characterized in that: An activated carbon filter (409) is fixedly inserted into the inner surface wall of the processor (406), a group of heaters (410) are arranged on the inner surface wall of the processor (406), and a group of ultraviolet lamps (411) are arranged on the inner surface wall of the processor (406).

10. A method for using a heat exchanger for preparing rare gas, characterized in that: Using the heat exchanger for preparing rare gas according to claim 9, The following steps are involved: S1: When cleaning the heat exchanger, first rotate the three-way valve (302) to close the gas delivery pipe 1 (303), and then start the water pump 1 (307). At this time, the water pump 1 (307) will use the liquid delivery pipe 2 (308) to extract the cleaning liquid, and inject it into the shell (101) through the liquid delivery pipe 1 (306), the three-way valve (302) and the feed pipe (301), so as to clean the dirt in the shell (101); S2: The air pump 2 (404) extracts the air inside the processor (406) through the gas delivery pipe 4 (405), and the outside air then enters the processor (406) and is sterilized by the processor (406). The treated air then enters the aeration ball (402) and is discharged through the aeration ball (402), forming a large number of bubbles in the water. The energy of the bubbles and the bursting of the bubbles is used to improve the cleaning effect of the heat exchanger. S3: The ultrasonic generator (202) is started synchronously, and the current signal is transmitted to the ultrasonic transducer (204) by means of the conductor (203). At this time, the ultrasonic transducer (204) converts the high-frequency electrical signal into mechanical vibration, and transmits the ultrasonic wave into the interior of the cleaning liquid by means of the horn (205) and the ultrasonic vibrator (206) installed on one side of the outer wall, so as to achieve the purpose of cleaning without dead angles and with high efficiency; S4: After the cleaning work is completed, the gas discharge valve (103) can be opened to discharge the cleaning liquid. At this time, the air pump 2 (404) still continuously injects air into the shell (101). At this time, the heater (410) is started to heat the air so that the hot air dries the water droplets in the shell (101).

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