Tubular heat exchanger for fluid heat exchange

Abstract

The invention discloses a tubular heat exchanger for fluid heat exchange, which relates to the technical field of heat exchangers and comprises a heat exchange device. According to the shell and tube heat exchanger for fluid heat exchange, through the design of the heat exchange device, when a heat flow medium enters the heat exchange tube from the conversion mechanism, the heat flow medium makes contact with the stripping mechanism in the heat exchange tube, liquid impacts the stripping mechanism, the stripping mechanism rubs the inner wall of the heat exchange tube, and therefore the effect of cleaning impurities is achieved; excessive accumulation of impurities on the inner wall after long-time operation is avoided, the situation that the impurities accumulate to occupy the inner space of a pipeline is prevented, the influence on the liquid flowing efficiency is avoided, and the influence on the heat exchange effect of equipment is avoided; a heat flow medium enters a heat exchange pipe, a cold flow medium is in a heat exchange shell, and the heat flow medium is in contact with the cold flow medium in the heat exchange shell; and after long-time operation, the equipment needs to be cleaned, and the interior of the heat exchange device is dried through the drying device, so that the purpose of cleaning residual water in the heat exchange device is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of heat exchangers, and in particular to a shell-and-tube heat exchanger for fluid heat exchange. Background Art

[0002] The shell and tube heat exchanger is a heat exchanger with a simple structure, low cost, wide flow cross-section and low heat transfer coefficient. It can be used under high temperature and high pressure and is currently the most widely used heat exchanger.

[0003] After long-term operation, impurities are easily accumulated inside the existing heat exchange equipment, affecting the service life and operating efficiency of the equipment. Therefore, a new design was developed to address this situation. Summary of the Invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: A shell-and-tube heat exchanger for fluid heat exchange, comprising a heat exchange device, a motor fixedly connected to one side of the outer arc of the heat exchange device, a drying device fixedly connected to the outer side of the heat exchange device, and a pneumatic device fixedly connected to the side of the outer side of the heat exchange device away from the drying device; The heat exchange device includes a conversion mechanism, two sides of the outside of the conversion mechanism are fixedly connected with a positioning mechanism, one side of the outside of the conversion mechanism is fixedly connected with a heat exchange shell, and two sides of the inner wall of the heat exchange shell are fixedly connected with fixed plates. The hot flow medium enters the heat exchange tube, and the cold flow medium is inside the heat exchange shell, so that the hot flow medium and the cold flow medium are in contact inside the heat exchange shell, so as to achieve efficient heat exchange, thereby meeting the operation requirements of the equipment, and the heat exchange tube is fixedly connected between the opposite surfaces of the fixed plates, and the side of the outside of the heat exchange shell away from the conversion mechanism is fixedly connected with the rear pipe box. When the hot flow medium enters the inside of the heat exchange tube from the conversion mechanism, it contacts the stripping mechanism inside the heat exchange tube, and the liquid impacts the stripping mechanism, so that the stripping mechanism rubs the inner wall of the heat exchange tube, so as to achieve the effect of cleaning impurities, avoid excessive accumulation of impurities on the inner wall after long-term operation, and prevent impurities from accumulating too much. The accumulation occupies the internal space of the pipeline, avoids affecting the liquid flow efficiency, and avoids affecting the heat exchange effect of the equipment. The inner side of the heat exchange tube is fixedly connected with a stripping mechanism. After a long period of operation, the heat exchange device needs to be cleaned. The inside of the heat exchange device is dried by a drying device, so as to clean the residual moisture inside, reduce the bacteria inside the equipment, slow down the corrosion of the equipment by impurities, and thus extend the service life of the equipment. The side of the heat exchange shell outside away from the drying device is fixedly connected with a discharge valve, and air is supplied to the inside of the heat exchange device through a pneumatic device, so as to clean the impurities on the internal components of the equipment, reduce the impurities inside the equipment, avoid excessive accumulation of impurities, and prevent affecting the operating efficiency of the equipment. The side of the discharge valve outside away from the heat exchange shell is fixedly connected with a first fan. The discharge valve is opened, and finally the first fan generates wind to clean the impurities inside the equipment and reduce residual impurities.

[0005] Preferably, a hot flow medium inlet pipe is fixedly connected to the upper side of the conversion mechanism, a hot flow medium outlet pipe is fixedly connected to the side of the conversion mechanism outside away from the hot flow medium inlet pipe, a cold flow medium inlet pipe is fixedly connected to the side of the heat exchange shell outside close to the hot flow medium inlet pipe, and a cold flow medium outlet pipe is fixedly connected to the side of the heat exchange shell outside away from the pneumatic device, and the hot flow medium enters the interior of the equipment from the hot flow medium inlet pipe. As the conversion mechanism diverts the hot flow medium, the hot flow medium enters the interior of the heat exchange tube and flows to the interior of the rear pipe box, and then the hot flow medium flows from the lower half of the heat exchange tube to the interior of the conversion mechanism, and finally is discharged outwardly from the hot flow medium outlet pipe, and the cold flow medium enters the interior of the heat exchange shell from the cold flow medium inlet pipe, and finally the cold flow medium is discharged outwardly from the heat exchange shell to the cold flow medium outlet pipe, so that the hot flow medium and the cold flow medium are in contact with each other inside the heat exchange shell, thereby realizing efficient heat exchange operation, thereby meeting operation requirements.

[0006] Preferably, the conversion mechanism includes a front pipe box, the side of the outside of the front pipe box away from the rear pipe box is fixedly connected to the outside of the motor, one side of the inner wall of the front pipe box is rotatably connected to a rotating shaft, the outer side of the rotating shaft is fixedly connected to a receiving scraper, the receiving scraper is adapted to the fixed plate, and the heat exchange tube is divided into two parts, upper and lower. When the operation stops, the rotating shaft is controlled by the motor to drive the receiving scraper to rotate, so that the receiving scraper rubs the inner wall of the front pipe box, so as to clean impurities inside the equipment, reduce impurity adhesion, and avoid impurities from corroding the inner wall of the equipment, thereby extending the service life of the equipment, and by scraping the inner wall of the equipment, the accumulation of impurities is avoided to affect the liquid flow effect, and the equipment is avoided from being blocked. The output end of the motor is fixedly connected to the outer side of the rotating shaft.

[0007] Preferably, the stripping mechanism includes a fixing frame, the outer side of the fixing frame is fixedly connected to the inner wall of the heat exchange tube, a connecting shaft is rotatably connected between the opposite surfaces of the fixing frame, and a spiral plate is fixedly connected to the outer side of the connecting shaft. Liquid enters the interior of the heat exchange tube, causing the liquid to impact the spiral plate, causing the spiral plate to rotate on the outside of the connecting shaft, thereby reducing the adsorption of impurities on the inner wall of the pipe, avoiding the accumulation of impurities affecting the heat exchange area of the components, and increasing the turbulent effect of the liquid inside the pipe. The mechanical disturbance of the spiral plate will cause the fluid flow state to transition to turbulent flow, further enhancing the heat transfer effect.

[0008] Preferably, the positioning mechanism includes a positioning shell, the outer side of the positioning shell is fixedly connected to the outer side of the front pipe box, and a first electric push rod is fixedly connected to one side of the outer side of the positioning shell. The receiving scraper exerts a large pressure in the process of receiving the flow of liquid, which easily causes the component to shake, thereby affecting the working effect of the component and preventing liquid leakage. Therefore, the first electric push rod is used to control the receiving plate to push the clamping mechanism to contact the receiving scraper, so as to achieve the function of fixing the component, thereby preventing the liquid from excessively impacting the component and preventing the component from affecting the diversion effect of the liquid. The outer side of the first electric push rod is fixedly connected to a receiving plate near the front pipe box, and the receiving plate is extended and retracted with the first electric push rod, thereby blocking the liquid from entering the interior of the component and preventing the liquid from corroding the interior of the component, thereby extending the service life of the component. The outer side of the receiving plate is slidably connected to the clamping mechanism, and the first electric push rod controls the clamping mechanism to extend and retract, thereby facilitating the receiving of the component and releasing the fixation of the component.

[0009] Preferably, the clamping mechanism includes a sliding rod, the outer side of the sliding rod is slidably connected to the outer side of the receiving plate, and the outer side of the sliding rod is fixedly connected to a connecting plate on a side away from the first electric push rod. When the clamping block contacts the receiving scraper, the clamping block drives the sliding rod to squeeze and contract the spring bar, thereby achieving the effect of shock absorption and buffering, avoiding excessive squeezing of components, preventing damage to components caused by excessive pressure, reducing rigid collisions between components, reducing wear between components, and thus extending the service life of components. A spring bar is sleeved on the side of the sliding rod close to the connecting plate, so that the spring bar supports the sliding rod, thereby achieving the effect of fixing the clamping component, and a clamping block is fixedly connected to the side of the connecting plate away from the spring bar.

[0010] Preferably, the drying device includes a dryer, the outer side of the dryer is fixedly connected to an external pipe, and the side of the external pipe away from the dryer is fixedly connected to an output pipe. When liquid remains inside the device, impurities are likely to adhere to a layer of liquid on the surface of the component, thereby hindering heat transfer and reducing heat exchange efficiency. Excessive accumulation of impurities can easily cause the impurities to aggravate the corrosion of internal components of the device, thereby affecting the service life of the components. The dryer generates a hot air flow to send air to the inside of the device through the output pipe, thereby achieving the effect of drying the inside of the device, thereby reducing liquid residue inside the device and reducing the growth of microorganisms and bacteria inside the device. Prevent affecting the subsequent liquid flow and avoid contamination of the liquid. By drying the inside of the equipment, scaling and impurity deposition are avoided, and the probability of impurity agglomeration is reduced. The internal drying of the heat exchange equipment cuts off the corrosion chain, eliminates scaling hazards, and avoids start-stop risks. The bottom of the output pipe is fixedly connected to a control valve, which plays a role in blocking liquid entry. When air drying operation is required, the control valve is opened. A grid plate is fixedly connected to the side of the inner wall of the output pipe close to the control valve. The grid plate plays a role in blocking impurity particles from entering the pipe and reducing particle accumulation inside the pipe. The inner wall of the output pipe is fixedly connected to a rotating mechanism.

[0011] Preferably, the rotating mechanism includes a receiving shaft, a rotating block is rotatably connected to the outside of the receiving shaft, a rotating bracket is fixedly connected to the outside of the rotating block, a connecting column is rotatably connected to the side of the rotating bracket away from the rotating block, an external bracket is fixedly connected to the side of the rotating block close to the rotating bracket, and a paddle is fixedly connected to the inside of the external bracket. The paddle is impacted by airflow, causing the paddle to drive the rotating block to rotate, causing the rotating bracket to drive the rotating connecting column to rub the inner wall of the pipe, thereby cleaning the inner wall of the pipe of impurities and preventing impurities from adhering to the inside of the pipe and affecting the subsequent gas flow effect. The scraped particles fall into the interior of the heat exchange shell by gravity, thereby facilitating subsequent cleaning.

[0012] Preferably, the pneumatic device includes a second fan, and the second fan is plugged into the outside of the receiving block to facilitate component replacement, thereby facilitating component replacement. The outside of the second fan is plugged into the receiving block, and the outside of the receiving block is plugged into the carrying plate. Wind is generated by the second fan, and the wind sprays air outward through the spherical block, so that the air flow flushes the inner wall components of the heat exchange shell, thereby achieving the effect of pneumatic cleaning of impurities, and utilizing the kinetic energy generated by the high-speed flow of gas to remove impurities inside the equipment through the flushing, carrying and stripping effects of the air flow, thereby achieving the purpose of stripping particles on the surface of the pipeline, preventing excessive accumulation of impurities, and preventing the heat exchange effect and heat exchange efficiency of the equipment from being affected. The bottom of the receiving block is fixedly connected with a spherical block The spherical block has multi-angle holes on the outside to increase the range of airflow ejection, thereby improving the airflow flushing effect. The inner side of the spherical block is fixedly connected to a scraping mechanism, and the bottom of the supporting plate is fixedly connected to a second electric push rod, which controls the spherical block to rise and fall, thereby reducing the contact area of the liquid on the spherical block and preventing it from affecting the working effect of the component. The side of the outside of the second electric push rod away from the supporting plate is fixedly connected to a pneumatic base, and the third electric push rod controls the closing plate to extend and close, thereby limiting the leakage of liquid inside the equipment and preventing it from affecting the operation of the equipment. The top of the pneumatic base is fixedly connected to a third electric push rod, and one side of the outside of the third electric push rod is fixedly connected to a closing plate.

[0013] Preferably, the scraping mechanism includes a support shaft, the outer side of the support shaft is rotatably connected to a scraping shell, and a circular blade is fixedly connected to the middle of the outside of the scraping shell. The circular blade is impacted by the airflow, and the circular blade drives the scraping bracket to impact, so that the scraping bracket rubs the inner wall of the spherical block, thereby achieving the effect of cleaning impurities on the inner wall of the component, thereby reducing impurity accumulation, preventing impurities from clogging the holes on the surface of the spherical block, avoiding affecting the airflow efficiency, and the fallen impurities enter the interior of the heat exchange shell, and the upper side of the outside of the scraping shell is fixedly connected to the scraping bracket, and airflow is generated by the first fan to clean impurities inside the equipment, thereby extending the service life of the equipment.

[0014] The present invention provides a shell-and-tube heat exchanger for fluid heat exchange. It has the following beneficial effects: 1. The shell and tube heat exchanger of the fluid heat exchange is designed with a heat exchange device. When the hot fluid medium enters the inside of the heat exchange tube from the conversion mechanism, it contacts the stripping mechanism inside the heat exchange tube. The liquid impacts the stripping mechanism, causing the stripping mechanism to rub the inner wall of the heat exchange tube, thereby achieving the effect of cleaning impurities, avoiding excessive accumulation of impurities on the inner wall after long-term operation, preventing impurity accumulation from occupying the internal space of the pipeline, avoiding affecting the liquid flow efficiency, and avoiding affecting the heat exchange effect of the equipment. The hot fluid medium enters the heat exchange tube, and the cold fluid medium is inside the heat exchange shell, so that the hot fluid medium and the cold fluid medium contact each other inside the heat exchange shell, thereby achieving efficient heat exchange, thereby meeting the operating requirements of the equipment. After a long period of operation, the heat exchange device needs to be cleaned, and the inside of the heat exchange device is dried by a drying device to clean the residual moisture inside, reduce bacteria inside the equipment, and slow down the impact of impurities on the equipment. Corrosion, thereby extending the service life of the equipment. Secondly, air is supplied to the inside of the heat exchange device through the pneumatic device to clean the impurities on the internal components of the equipment, reduce the impurities inside the equipment, avoid excessive accumulation of impurities, and prevent affecting the operating efficiency of the equipment. The discharge valve is opened, and finally the first fan generates wind to clean the impurities inside the equipment to reduce residual impurities. The hot flow medium enters the interior of the equipment from the hot flow medium inlet pipe. As the conversion mechanism diverts the hot flow medium, the hot flow medium enters the inside of the heat exchange tube and flows to the inside of the rear tube box. Then the hot flow medium flows from the lower half of the heat exchange tube to the inside of the conversion mechanism, and is finally discharged from the hot flow medium outlet pipe. The cold flow medium enters the inside of the heat exchange shell from the cold flow medium inlet pipe, and finally the cold flow medium is discharged from the heat exchange shell to the cold flow medium outlet pipe, so that the hot flow medium and the cold flow medium are in contact inside the heat exchange shell, thereby achieving efficient heat exchange operation, thereby meeting the operation requirements.

[0015] 2. The shell-and-tube heat exchanger for fluid heat exchange is designed with a conversion mechanism, and the receiving scraper is adapted to the fixed plate to divide the heat exchange tube into two parts, upper and lower. When the operation stops, the motor controls the rotating shaft to drive the receiving scraper to rotate, so that the receiving scraper rubs the inner wall of the front tube box, thereby cleaning impurities inside the equipment, reducing impurity adhesion, and preventing impurities from corroding the inner wall of the equipment, thereby extending the service life of the equipment. By scraping the inner wall of the equipment, the accumulation of impurities is prevented from affecting the liquid flow effect and avoiding equipment blockage.

[0016] 3. The shell and tube heat exchanger for fluid heat exchange is designed with a positioning mechanism. The receiving scraper is under high pressure during the process of receiving the liquid flow, which can easily cause the components to shake, thereby affecting the operating effect of the components and preventing liquid leakage. Therefore, the first electric push rod is used to control the receiving plate to push the clamping mechanism to contact the receiving scraper, so as to achieve the function of fixing the components, thereby preventing the liquid from excessively impacting the components and preventing the components from affecting the diversion effect of the liquid. Secondly, the receiving plate is extended and retracted with the first electric push rod to block the liquid from entering the interior of the components, preventing the liquid from corroding the interior of the components, thereby extending the service life of the components. Secondly, the first electric push rod controls the clamping mechanism to extend and retract, thereby facilitating the receiving of components and releasing the fixation of components.

[0017] 4. The shell and tube heat exchanger of the fluid heat exchange is designed with a drying device. When liquid remains inside the equipment, impurities are likely to adhere to a layer of liquid on the surface of the components, thereby hindering heat transfer and reducing heat exchange efficiency. Excessive accumulation of impurities can easily cause impurities to aggravate the corrosion of internal components of the equipment, thereby affecting the service life of the components. The dryer generates a hot air flow to send air to the inside of the equipment through the output pipe, thereby achieving the effect of drying the inside of the equipment, thereby reducing liquid residue inside the equipment, reducing the growth of microorganisms and bacteria inside the equipment, preventing the impact on subsequent liquid flow, and avoiding contamination of the liquid. By drying the inside of the equipment, scaling and impurity deposition are avoided, and the probability of impurity agglomeration is reduced. The internal drying of the heat exchange equipment cuts off the corrosion chain, eliminates scaling hazards, and avoids start-up and shutdown risks. The grille plate blocks impurity particles from entering the pipeline, reduces particle accumulation inside the pipeline, and blocks liquid entry through the control valve. When air drying operation is required, open the control valve.

[0018] 5. The shell and tube heat exchanger of the fluid heat exchange is designed with a pneumatic device. The second fan generates wind force, which sprays air outward through the spherical block, so that the air flow flushes the inner wall components of the heat exchange shell, thereby achieving the effect of pneumatic cleaning of impurities. The kinetic energy generated by the high-speed flowing gas is used to flush, carry and strip impurities inside the equipment, thereby stripping particles on the surface of the pipeline, preventing excessive accumulation of impurities, and preventing the impact on the heat exchange effect and efficiency of the equipment. Multi-angle holes are opened on the outside of the spherical block to increase the range of airflow spraying, thereby improving the airflow flushing effect. The third electric push rod controls the closing plate to expand and contract, open and close, thereby limiting the leakage of liquid inside the equipment and preventing it from affecting the operation of the equipment. The second electric push rod controls the spherical block to rise and fall, thereby reducing the contact area of the liquid on the spherical block and preventing it from affecting the operating effect of the components. The second fan is plugged into the outside of the receiving block to facilitate component replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1Schematic diagram of the external structure of the shell and tube heat exchanger for fluid heat exchange of the present invention; Figure 2 Schematic diagram of the structure of the shell and tube heat exchanger of the present invention; Figure 3 Schematic diagram of the cross-sectional structure of the heat exchange device of the present invention; Figure 4 Schematic diagram of the cross-sectional structure of the peeling mechanism of the present invention; Figure 5 This is a schematic diagram of the conversion mechanism structure of the present invention; Figure 6 This is a schematic structural diagram of the clamping mechanism of the present invention; Figure 7 Schematic diagram of the cross-sectional structure of the drying device of the present invention; Figure 8 This is a schematic diagram of the rotating mechanism structure of the present invention; Figure 9 Schematic diagram of the cross-sectional structure of the pneumatic device of the present invention; Figure 10 It is a schematic structural diagram of the scraping mechanism of the present invention.

[0020] In the figure: 1. heat exchange device; 2. drying device; 3. pneumatic device; 4. motor; 5. hot flow medium inlet pipe; 6. hot flow medium outlet pipe; 7. cold flow medium inlet pipe; 8. cold flow medium outlet pipe; 11. conversion mechanism; 12. heat exchange shell; 13. fixing plate; 14. heat exchange tube; 15. rear tube box; 16. stripping mechanism; 17. positioning mechanism; 18. discharge valve; 19. first fan; 111. front tube box; 112. rotating shaft; 113. receiving scraper; 161. fixing frame; 162. connecting shaft; 163. spiral plate; 171. positioning shell; 172. first electric push rod; 173. receiving plate; 174. clamping mechanism; 1741. sliding rod ;1742, spring bar;1743, connecting plate;1744, clamping block;21, dryer;22, external pipe;23, output pipe;24, grille plate;25, control valve;26, rotating mechanism;261, receiving shaft;262, rotating block;263, rotating bracket;264, connecting column;265, external bracket;266, paddle;31, second fan;32, receiving block;33, pneumatic base;34, spherical block;35, scraping mechanism;36, bearing plate;37, second electric push rod;38, closing plate;39, third electric push rod;351, supporting shaft;352, scraping shell;353, circular blade;354, scraping bracket. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0022] The first embodiment, as Figures 1 to 6 As shown, the present invention provides a technical solution: a shell-and-tube heat exchanger for fluid heat exchange, comprising a heat exchange device 1, a motor 4 is fixedly connected to one side of the outer arc of the heat exchange device 1, a drying device 2 is fixedly connected to the outer side of the heat exchange device 1, and a pneumatic device 3 is fixedly connected to the side of the outer side of the heat exchange device 1 away from the drying device 2; The heat exchange device 1 includes a conversion mechanism 11, and positioning mechanisms 17 are fixedly connected to both sides of the outside of the conversion mechanism 11. A heat exchange shell 12 is fixedly connected to one side of the outside of the conversion mechanism 11, and fixed plates 13 are fixedly connected to both sides of the inner wall of the heat exchange shell 12. Heat exchange tubes 14 are fixedly connected between opposite surfaces of the fixed plates 13. A rear pipe box 15 is fixedly connected to the side of the outside of the heat exchange shell 12 away from the conversion mechanism 11, and a stripping mechanism 16 is fixedly connected to the inner side of the heat exchange tube 14. A discharge valve 18 is fixedly connected to the side of the outside of the heat exchange shell 12 away from the drying device 2, and a first fan 19 is fixedly connected to the side of the outside of the discharge valve 18 away from the heat exchange shell 12. When the hot flow medium enters the heat exchange tube 14 from the conversion mechanism 11, it contacts the stripping mechanism 16 inside the heat exchange tube 14. The liquid impacts the stripping mechanism 16, causing the stripping mechanism 16 to rub the inner wall of the heat exchange tube 14, thereby cleaning impurities and avoiding excessive accumulation of impurities on the inner wall after long-term operation. The accumulation of impurities prevents the internal space of the pipeline from being occupied, thereby avoiding affecting the liquid flow efficiency and the heat exchange effect of the equipment. The hot flow medium enters the heat exchange tube 14, and the cold flow medium is inside the heat exchange shell 12, so that the hot flow medium and the cold flow medium contact each other inside the heat exchange shell 12, thereby achieving efficient heat exchange. In order to meet the operating requirements of the equipment, the heat exchange device 1 needs to be cleaned after a long period of operation. The drying device 2 is used to dry the inside of the heat exchange device 1 to clean the residual moisture inside, reduce the bacteria inside the equipment, and slow down the corrosion of the equipment by impurities, thereby extending the service life of the equipment. Secondly, the pneumatic device 3 is used to supply air to the inside of the heat exchange device 1 to clean the impurities on the internal components of the equipment, reduce the impurities inside the equipment, avoid excessive accumulation of impurities, and prevent affecting the operating efficiency of the equipment. The discharge valve 18 is opened, and finally the first fan 19 is used to generate wind to clean the impurities inside the equipment and reduce residual impurities.

[0023] A hot medium inlet pipe 5 is fixedly connected to the upper side of the conversion mechanism 11. A hot medium outlet pipe 6 is fixedly connected to the side of the conversion mechanism 11 away from the hot medium inlet pipe 5. A cold medium inlet pipe 7 is fixedly connected to the side of the heat exchange housing 12 near the hot medium inlet pipe 5. A cold medium outlet pipe 8 is fixedly connected to the side of the heat exchange housing 12 away from the pneumatic device 3. Hot medium enters the device through the hot medium inlet pipe 5. As the conversion mechanism 11 divides the hot medium, it enters the heat exchange tubes 14 and flows into the rear tube box 15. It then flows from the lower half of the heat exchange tubes 14 to the conversion mechanism 11 and is finally discharged from the hot medium outlet pipe 6. Cold medium enters the heat exchange housing 12 through the cold medium inlet pipe 7 and is finally discharged from the heat exchange housing 12 to the cold medium outlet pipe 8. This ensures contact between the hot and cold media within the heat exchange housing 12, achieving efficient heat exchange and meeting operational requirements.

[0024] The conversion mechanism 11 includes a front tube box 111. The side of the front tube box 111 away from the rear tube box 15 is fixedly connected to the outside of the motor 4. A rotating shaft 112 is rotatably connected to one side of the inner wall of the front tube box 111. A receiving scraper 113 is fixedly connected to the outer side of the rotating shaft 112. The output end of the motor 4 is fixedly connected to the outer side of the rotating shaft 112. The receiving scraper 113 is adapted to the fixed plate 13, dividing the heat exchange tube 14 into two upper and lower parts. When the operation stops, the rotating shaft 112 is controlled by the motor 4 to drive the receiving scraper 113 to rotate, causing the receiving scraper 113 to rub the inner wall of the front tube box 111, thereby cleaning impurities inside the equipment, reducing impurity adhesion, and preventing impurities from corroding the inner wall of the equipment, thereby extending the service life of the equipment. By scraping the inner wall of the equipment, impurities are prevented from accumulating and affecting the liquid flow effect, thereby preventing equipment blockage.

[0025] The stripping mechanism 16 includes a mounting bracket 161, the outer side of which is fixedly connected to the inner wall of the heat exchange tube 14. A connecting shaft 162 is rotatably connected between opposing surfaces of the mounting bracket 161, and a spiral plate 163 is fixedly connected to the outer side of the connecting shaft 162. When liquid enters the interior of the heat exchange tube 14, it impacts the spiral plate 163, causing the spiral plate 163 to rotate outside the connecting shaft 162. This reduces the adsorption of impurities on the inner wall of the tube, preventing impurity accumulation that affects the heat exchange area of the components, and increases the turbulence of the liquid within the tube. The mechanical disturbance of the spiral plate causes the fluid flow to transition to a turbulent state, further enhancing the heat transfer effect.

[0026] The positioning mechanism 17 includes a positioning shell 171, the outer side of the positioning shell 171 is fixedly connected to the outer side of the front pipe box 111, and a first electric push rod 172 is fixedly connected to one side of the outer side of the positioning shell 171, and a receiving plate 173 is fixedly connected to the side of the outer side of the first electric push rod 172 close to the front pipe box 111, and a clamping mechanism 174 is slidably connected to the outer side of the receiving plate 173. The receiving scraper 113 has a high pressure in the process of receiving the liquid flow, which can easily cause the component to shake, thereby affecting the working effect of the component and preventing liquid leakage. Therefore, the first electric push rod 172 controls the receiving plate 173 to push the clamping mechanism 174 to contact the receiving scraper 113, so as to achieve the function of fixing the component, thereby preventing the liquid from excessively impacting the component and preventing the component from affecting the diversion effect of the liquid. Secondly, the receiving plate 173 is extended and retracted with the first electric push rod 172 to block the liquid from entering the interior of the component and prevent the liquid from corroding the interior of the component, thereby extending the service life of the component. Secondly, the first electric push rod 172 controls the clamping mechanism 174 to extend and retract, thereby facilitating the receiving of the component and releasing the fixation of the component.

[0027] The clamping mechanism 174 includes a sliding rod 1741, the outer side of which is slidably connected to the outer side of the receiving plate 173. A connecting plate 1743 is fixedly connected to the outer side of the sliding rod 1741 away from the first electric push rod 172. A spring bar 1742 is sleeved on the outer side of the sliding rod 1741 near the connecting plate 1743. A clamping block 1744 is fixedly connected to the outer side of the connecting plate 1743 away from the spring bar 1742. When the clamping block 1744 contacts the receiving scraper 113, the clamping block 1744 drives the sliding rod 1741 to squeeze and contract the spring bar 1742, thereby achieving a shock-absorbing and buffering effect, avoiding excessive compression and damage to components caused by excessive pressure, reducing rigid collisions between components, and reducing wear between components, thereby extending the service life of the components. At the same time, the spring bar 1742 supports the sliding rod 1741, thereby achieving the function of fixing the clamping components.

[0028] The second embodiment, based on the first embodiment, see Figures 7 and 8As shown, the drying device 2 includes a dryer 21, an external pipe 22 is fixedly connected to the outside of the dryer 21, an output pipe 23 is fixedly connected to the side of the external pipe 22 away from the dryer 21, a control valve 25 is fixedly connected to the bottom of the output pipe 23, a grid plate 24 is fixedly connected to the side of the inner wall of the output pipe 23 close to the control valve 25, and a rotating mechanism 26 is fixedly connected to the inner wall of the output pipe 23. When liquid remains inside the equipment, impurities are likely to adhere to a layer of liquid on the surface of the components, thereby hindering heat transfer and reducing heat exchange efficiency. Excessive accumulation of impurities can easily cause impurities to aggravate the corrosion of internal components of the equipment, thereby affecting the service life of the components. The dryer 21 generates a hot air flow and sends air to the inside of the equipment through the output pipe 23, thereby achieving the effect of drying the inside of the equipment, thereby reducing liquid residue inside the equipment, reducing the growth of microorganisms and bacteria inside the equipment, preventing the impact on subsequent liquid flow, and avoiding contamination of the liquid. By drying the inside of the equipment, scaling and impurity deposition are avoided, and the probability of impurity agglomeration is reduced. The internal drying of the heat exchange equipment cuts off the corrosion chain, eliminates scaling hazards, and avoids start-stop risks. The grid plate 24 blocks impurity particles from entering the pipeline, reduces particle accumulation inside the pipeline, and blocks liquid entry through the control valve 25. When air drying operation is required, the control valve 25 is opened.

[0029] The rotating mechanism 26 includes a receiving shaft 261, the outer side of which is rotatably connected to a rotating block 262, the outer side of which is fixedly connected to a rotating bracket 263, the outer side of the rotating bracket 263 away from the rotating block 262 being rotatably connected to a connecting post 264, the outer side of the rotating block 262 close to the rotating bracket 263 being fixedly connected to an external bracket 265, and the inner side of the external bracket 265 being fixedly connected to a paddle 266. When airflow impacts the paddle 266, the paddle 266 drives the rotating block 262 to rotate, causing the rotating bracket 263 to drive the rotating connecting post 264 to rub against the inner wall of the pipe, thereby cleaning the inner wall of the pipe of impurities and preventing the impurities from adhering to the interior of the pipe and affecting the subsequent gas flow. The scraped particles fall into the interior of the heat exchange shell 12 by gravity, facilitating subsequent cleaning.

[0030] The third embodiment, based on the first and second embodiments, see Figures 9 and 10As shown, the pneumatic device 3 includes a second fan 31, the outer side of the second fan 31 is plugged into a receiving block 32, the outer side of the receiving block 32 is plugged into a supporting plate 36, the bottom of the receiving block 32 is fixedly connected to a spherical block 34, the inner side of the spherical block 34 is fixedly connected to a scraping mechanism 35, the bottom of the supporting plate 36 is fixedly connected to a second electric push rod 37, the outer side of the second electric push rod 37 away from the supporting plate 36 is fixedly connected to a pneumatic base 33, the top of the pneumatic base 33 is fixedly connected to a third electric push rod 39, and the outer side of the third electric push rod 39 is fixedly connected to a closing plate 38. The second fan 31 generates wind force, which ejects air outward through the spherical block 34, causing the air flow to flush the inner wall components of the heat exchange shell 12, thereby achieving the effect of pneumatic cleaning of impurities. The kinetic energy generated by the high-speed flowing gas is used to flush, carry and strip impurities inside the equipment, thereby stripping particles on the surface of the pipeline, preventing excessive accumulation of impurities and affecting the heat exchange effect and efficiency of the equipment. Multi-angle holes are provided on the outside of the spherical block 34 to increase the range of airflow ejection, thereby improving the airflow flushing effect. The third electric push rod 39 controls the closing plate 38 to extend and close, thereby limiting the leakage of liquid inside the equipment and preventing it from affecting the operation of the equipment. The second electric push rod 37 controls the spherical block 34 to rise and fall, thereby reducing the contact area of the liquid on the spherical block 34 and preventing it from affecting the working effect of the components. The second fan 31 is plugged into the outside of the receiving block 32 to facilitate component replacement.

[0031] The scraping mechanism 35 includes a support shaft 351, the outer side of which is rotatably connected to a scraping housing 352. A circular blade 353 is fixedly connected to the middle of the outer portion of the scraping housing 352, and a scraping bracket 354 is fixedly connected to the upper side of the outer portion of the scraping housing 352. When airflow impacts the circular blade 353, the circular blade 353 drives the scraping bracket 354 to impact, causing the scraping bracket 354 to rub against the inner wall of the spherical block 34, thereby cleaning impurities from the inner wall of the component. This reduces impurity accumulation and prevents impurities from clogging the holes on the surface of the spherical block 34, thereby avoiding affecting the airflow efficiency. Falling impurities enter the interior of the heat exchange housing 12, where they are generated by the first fan 19 to clean impurities from the device, thereby extending the service life of the device.

[0032] During use, the hot flow medium enters the heat exchange device 1 from the hot flow medium inlet pipe 5, and is diverted by the conversion mechanism 11 to enter the heat exchange tube 14, thereby extending the heat exchange stroke and improving the heat exchange efficiency. The cold flow medium enters the heat exchange shell 12 from the cold flow medium inlet pipe 7, so that the cold flow medium and the hot flow medium are in contact inside the heat exchange shell 12, thereby achieving the effect of fluid heat exchange, thereby meeting the heat exchange requirements of the equipment. When the hot flow medium enters the heat exchange tube 14, it contacts the stripping mechanism 16, so that the stripping mechanism 16 rubs the inner wall of the pipe, thereby cleaning the impurities on the inner wall of the pipe, thereby reducing the adsorption of impurities on the inner wall of the pipe, avoiding the accumulation of impurities affecting the heat exchange area of the components, and increasing the turbulence effect of the liquid inside the pipe. The mechanical disturbance will make the fluid flow state transition to turbulence, further enhancing the heat transfer effect. The hot flow medium is discharged from the rear pipe box 15 to the hot flow medium outlet pipe 6, and the cold flow medium is discharged from the cold flow medium outlet pipe 8, so as to achieve the effect of continuous operation. When the inside of the equipment needs to be cleaned, the conversion mechanism 11 is used to clean the impurities inside the equipment, reduce the adhesion of impurities, and avoid the corrosion of the inner wall of the equipment by impurities, thereby extending the service life of the equipment. By scraping the inner wall of the equipment, the accumulation of impurities is avoided to affect the liquid flow effect and the equipment is prevented from being blocked. Then, the receiving scraper 113 is supported by the positioning mechanism 17. The receiving scraper 113 has a high pressure in the process of receiving the liquid flow, which can easily cause the components to shake, thereby affecting the working effect of the components and preventing the occurrence of In the event of liquid leakage, the first electric push rod 172 controls the receiving plate 173 to push the clamping mechanism 174 to contact the receiving scraper 113, so as to achieve the function of fixing the component, thereby preventing the liquid from excessively impacting the component and affecting the diversion effect of the component on the liquid. Secondly, the receiving plate 173 is extended and retracted along with the first electric push rod 172, thereby blocking the liquid from entering the interior of the component and preventing the liquid from corroding the interior of the component, thereby extending the service life of the component. The interior of the heat exchange device 1 is dried by the drying device 2. When liquid remains inside the equipment, it is easy for impurities to adhere to a layer of liquid layer on the surface of the component, thereby hindering heat transfer and reducing heat exchange efficiency. Excessive accumulation of impurities can easily cause the impurities to aggravate the corrosion of the internal components of the equipment, thereby Affect the service life of the components, so as to achieve the effect of drying the inside of the equipment, thereby reducing the liquid residue inside the equipment, reducing the growth of microorganisms and bacteria inside the equipment, preventing the impact on the subsequent liquid flow, and avoiding contamination of the liquid. By drying the inside of the equipment, scaling and impurity deposition are avoided, and the probability of impurity agglomeration is reduced. The internal drying of the heat exchange equipment cuts off the corrosion chain, eliminates the hidden dangers of scaling, and avoids the risk of start-up and shutdown. After the impurities are dried, their surface viscosity is weakened. The pneumatic device 3 is used to achieve the effect of pneumatic cleaning of impurities. The kinetic energy generated by the high-speed flow of gas is used to flush, carry and strip off the impurities inside the equipment, so as to achieve the purpose of stripping the particles on the surface of the pipe, prevent excessive accumulation of impurities, and prevent affecting the heat exchange effect and heat exchange efficiency of the equipment.The impurities removed by the pneumatic cleaning fall into the heat exchange shell 12, and the first fan 19 cleans the particles inside the equipment, thereby keeping the interior of the equipment clean and extending the service life of the equipment.

[0033] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without making creative efforts should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention shall be implemented in accordance with conventional means in the field unless otherwise specified or limited.

Claims

1. A shell and tube heat exchanger for fluid heat exchange, characterized in that: The heat exchange device (1) comprises a heat exchange device (1), wherein an outer arc-shaped side of the heat exchange device (1) is fixedly connected to a motor (4), an outer side of the heat exchange device (1) is fixedly connected to a drying device (2), and an outer side of the heat exchange device (1) away from the drying device (2) is fixedly connected to a pneumatic device (3); The heat exchange device (1) comprises a conversion mechanism (11), positioning mechanisms (17) are fixedly connected to both sides of the outside of the conversion mechanism (11), a heat exchange shell (12) is fixedly connected to one side of the outside of the conversion mechanism (11), a fixing plate (13) is fixedly connected to both sides of the inner wall of the heat exchange shell (12), a heat exchange tube (14) is fixedly connected between opposite surfaces of the fixing plate (13), a rear tube box (15) is fixedly connected to the side of the outside of the heat exchange shell (12) away from the conversion mechanism (11), a stripping mechanism (16) is fixedly connected to the inside of the heat exchange tube (14), a discharge valve (18) is fixedly connected to the side of the outside of the heat exchange shell (12) away from the drying device (2), and a first fan (19) is fixedly connected to the side of the discharge valve (18) away from the heat exchange shell (12).

2. The shell-and-tube heat exchanger for fluid heat exchange according to claim 1, characterized in that: The upper side of the conversion mechanism (11) is fixedly connected to a hot flow medium inlet pipe (5), the side of the conversion mechanism (11) away from the hot flow medium inlet pipe (5) is fixedly connected to a hot flow medium outlet pipe (6), the side of the heat exchange shell (12) close to the hot flow medium inlet pipe (5) is fixedly connected to a cold flow medium inlet pipe (7), and the side of the heat exchange shell (12) away from the pneumatic device (3) is fixedly connected to a cold flow medium outlet pipe (8).

3. The shell-and-tube heat exchanger for fluid heat exchange according to claim 1, characterized in that: The conversion mechanism (11) comprises a front pipe box (111), a side of the front pipe box (111) away from the rear pipe box (15) is fixedly connected to the outside of the motor (4), a side of the inner wall of the front pipe box (111) is rotatably connected to a rotating shaft (112), a receiving scraper (113) is fixedly connected to the outside of the rotating shaft (112), and an output end of the motor (4) is fixedly connected to the outside of the rotating shaft (112).

4. The shell-and-tube heat exchanger for fluid heat exchange according to claim 1, characterized in that: The stripping mechanism (16) comprises a fixing frame (161), the outer side of the fixing frame (161) is fixedly connected to the inner wall of the heat exchange tube (14), a connecting shaft (162) is rotatably connected between opposite surfaces of the fixing frame (161), and a spiral plate (163) is fixedly connected to the outer side of the connecting shaft (162).

5. The shell-and-tube heat exchanger for fluid heat exchange according to claim 1, characterized in that: The positioning mechanism (17) comprises a positioning housing (171), the outer side of the positioning housing (171) is fixedly connected to the outer side of the front pipe box (111), a first electric push rod (172) is fixedly connected to one side of the outer side of the positioning housing (171), a receiving plate (173) is fixedly connected to the outer side of the first electric push rod (172) close to the front pipe box (111), and a clamping mechanism (174) is slidably connected to the outer side of the receiving plate (173).

6. The shell-and-tube heat exchanger for fluid heat exchange according to claim 5, characterized in that: The clamping mechanism (174) includes a sliding rod (1741), the outer side of the sliding rod (1741) is slidably connected to the outer side of the receiving plate (173), the outer side of the sliding rod (1741) away from the first electric push rod (172) is fixedly connected to the connecting plate (1743), the outer side of the sliding rod (1741) close to the connecting plate (1743) is sleeved with a spring bar (1742), and the outer side of the connecting plate (1743) away from the spring bar (1742) is fixedly connected to a clamping block (1744).

7. The shell-and-tube heat exchanger for fluid heat exchange according to claim 1, characterized in that: The drying device (2) comprises a dryer (21), an external pipe (22) is fixedly connected to the outside of the dryer (21), an output pipe (23) is fixedly connected to the side of the external pipe (22) away from the dryer (21), a control valve (25) is fixedly connected to the bottom of the output pipe (23), a grid plate (24) is fixedly connected to the side of the inner wall of the output pipe (23) close to the control valve (25), and a rotating mechanism (26) is fixedly connected to the inner wall of the output pipe (23).

8. The shell-and-tube heat exchanger for fluid heat exchange according to claim 7, characterized in that: The rotating mechanism (26) comprises a receiving shaft (261), the outer side of the receiving shaft (261) is rotatably connected to a rotating block (262), the outer side of the rotating block (262) is fixedly connected to a rotating bracket (263), the outer side of the rotating bracket (263) away from the rotating block (262) is rotatably connected to a connecting column (264), the outer side of the rotating block (262) close to the rotating bracket (263) is fixedly connected to an external bracket (265), and the inner side of the external bracket (265) is fixedly connected to a paddle board (266).

9. The shell-and-tube heat exchanger for fluid heat exchange according to claim 1, characterized in that: The pneumatic device (3) comprises a second fan (31), the outer side of the second fan (31) is plug-connected with a receiving block (32), the outer side of the receiving block (32) is plug-connected with a bearing plate (36), the bottom of the receiving block (32) is fixedly connected with a spherical block (34), the inner side of the spherical block (34) is fixedly connected with a scraping mechanism (35), the bottom of the bearing plate (36) is fixedly connected with a second electric push rod (37), the outer side of the second electric push rod (37) away from the bearing plate (36) is fixedly connected with a pneumatic base (33), the top of the pneumatic base (33) is fixedly connected with a third electric push rod (39), and the outer side of the third electric push rod (39) is fixedly connected with a closing plate (38).

10. The shell-and-tube heat exchanger for fluid heat exchange according to claim 9, characterized in that: The scraping mechanism (35) comprises a support shaft (351), the outer side of the support shaft (351) is rotatably connected to a scraping shell (352), a circular blade (353) is fixedly connected to the middle of the outer side of the scraping shell (352), and a scraping bracket (354) is fixedly connected to the upper side of the outer side of the scraping shell (352).

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