Tubular heat exchanger capable of improving heat exchange efficiency

Abstract

The tubular heat exchanger comprises a shell, a hot fluid inlet pipe and a cold fluid outlet pipe are arranged on the inner wall of the top end and the inner wall of the bottom end of one side of the shell correspondingly, and a cold fluid inlet pipe and a hot fluid outlet pipe are arranged on the inner wall of the top end and the inner wall of the bottom end of the opposite side of the shell correspondingly; a vibration mechanism is arranged on the inner wall of the top end of the shell, a liquid discharging mechanism is arranged on the inner wall of the bottom end of the shell, a drainage mechanism is arranged on the inner wall of one side of the shell, the drainage mechanism and a cold fluid inlet pipe are located on the same side, two pipe plates are arranged on the inner wall of the shell in an attached mode at the same time, and a heat transfer pipe bundle is connected between the two pipe plates at the same time. According to the tubular heat exchanger capable of improving the heat exchange efficiency, drainage of hot fluid retention liquid can be completed, scaling caused by too long retention time is avoided, the cleaning frequency of the outer wall of the heat transfer tube bundle is reduced, meanwhile, the hot fluid in the flowing process can oscillate, and then the heat transfer efficiency is improved.

Description

Technical Field

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

[0002] The tubular exchanger is the most widely used heat exchanger in chemical and alcohol production. It is mainly composed of shell, tube sheet, heat exchange tube, head, baffle, etc. The required materials can be made of ordinary carbon steel, copper, or stainless steel. During heat exchange, one fluid enters from the connecting pipe of the head, flows in the tube, and flows out from the outlet pipe at the other end of the head. This is called the tube side; the other fluid enters from the connecting pipe of the shell and flows out from another connecting pipe on the shell. This is called the shell side.

[0003] The staggered arrangement of the baffles blocks the bottom of the shell. When the heat fluid stops entering, it will accumulate and stay at the bottom of the heat exchange tube. The longer the retention time, the easier it is for the impurities in the heat fluid to scale on the outer wall of the heat exchange tube and the inner wall of the shell. Scaling directly affects the heat exchange efficiency and also requires more frequent cleaning. Summary of the invention

[0004] The present invention discloses a shell-and-tube heat exchanger capable of improving heat exchange efficiency, aiming to solve the technical problem that when the input of hot fluid stops, accumulation and retention will occur at the bottom end of the heat exchange tube, and the longer the retention time, the easier it is for impurities in the hot fluid to scale on the outer wall of the heat exchange tube and the inner wall of the shell.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A shell-and-tube heat exchanger capable of improving heat exchange efficiency comprises a shell, wherein the top inner wall and the bottom inner wall of one side of the shell are respectively provided with a hot fluid inlet pipe and a cold fluid outlet pipe, and the top inner wall and the bottom inner wall of the opposite side of the shell are respectively provided with a cold fluid inlet pipe and a hot fluid outlet pipe, the top inner wall of the shell is provided with an oscillation mechanism, the bottom inner wall of the shell is provided with a drainage mechanism, one inner wall of the shell is provided with a drainage mechanism, and the drainage mechanism and the cold fluid inlet pipe are located on the same side, two tube sheets are simultaneously provided on the inner wall of the shell, and a heat transfer tube bundle is simultaneously connected between the two tube sheets, the hot fluid inlet pipe and the hot fluid outlet pipe are located between the two tube sheets, a plurality of baffles are equidistantly arranged up and down outside the heat transfer tube bundle, and a plurality of bottom frames are fixedly connected to the bottom end of the shell;

[0007] The discharge mechanism includes a support bin fixed to the inner wall of the bottom end of the shell, a rotating bin is movably connected in the support bin, one end of the rotating bin is fixedly connected to a support shaft 1, and the support shaft 1 passes through the support bin and is connected to a gear 2, the gear 2 is meshed with a gear 1, and one side of the gear 1 is connected to a motor 2, a discharge port is provided on one side of the rotating bin, and the diameter of the discharge port is consistent with the inner diameter of the rotating bin, two inclined plates are fixedly connected in the rotating bin, and the two inclined plates are respectively located on both sides of the discharge port, a connecting pipe is fixedly connected to the inner wall of the other end of the rotating bin, and the connecting pipe is colinear with the rotating axis of the rotating bin, and the connecting pipe passes through The hot fluid outlet pipe extends through the support bin, and the inner side of the connecting pipe is provided with an inclined surface 1 inclined in the direction in which the hot fluid outlet pipe is provided. A plurality of groups of multi-channel pipes are provided at the gap between the rotating bin and the inclined plate, and the input end and the output end of each group of multi-channel pipes simultaneously penetrate the inner wall of the rotating bin in the same direction. A high-pressure nozzle is provided at the output end of each group of multi-channel pipes, and a water pump is provided at the connection between the input end and the output end of each group of multi-channel pipes. The bottom ends of the plurality of baffles located below are respectively provided with sealing plates 2, and the bottom end of the tube plate is provided with sealing plate 1, and the outer walls of the bottom ends of the sealing plates 1 and 2 are movably fitted to the outer wall of the rotating bin;

[0008] A through groove is provided at the connection between the housing and the support bin, the motor 2 is fixed outside the bearing frame 2, and the output end of the motor 2 passes through the bearing frame 2 and is connected to the gear 1, a bearing is inlaid on the inner wall of one side of the support bin, and the other side of the gear 1 is connected to the bearing;

[0009] One side of the support bin and the hot fluid outlet pipe is penetrated by a second perforation, and the connecting pipe is located in the second perforation and tightly connected to the inner wall of the second perforation. One side of the rotating bin is penetrated by multiple first perforations, and the input ends and output ends of the multiple multi-way tubes are respectively embedded in the multiple first perforations, and the cut ends of the input ends and output ends of the multi-way tubes are consistent with the outer wall of the rotating bin.

[0010] By providing a drainage mechanism, the motor 2 in the drainage mechanism can simultaneously drive the rotating bin to rotate in close contact with the inner wall of the supporting bin to change the setting position of the drainage port. When the drainage port is located at the upper side, the thermal fluid remaining at the bottom of the shell can be guided and discharged from the connecting pipe into the thermal fluid outlet pipe to complete the drainage of the thermal fluid retention liquid, so as to avoid scaling caused by too long retention time and reduce the cleaning frequency of the outer wall of the heat transfer tube bundle. In addition, when the drainage port is located directly below the rotating bin, the thermal fluid can be sucked in from the input end of the multi-pass pipe, and then guided by the water pump, sprayed out by the high-pressure nozzle, and acted on the thermal fluid from the bottom, so that the thermal fluid in the flow process will vibrate, and the uniformity of temperature distribution will be broken through vibration, thereby increasing the temperature difference and improving the heat transfer efficiency.

[0011] In a preferred solution, the oscillation mechanism comprises a groove arranged on the inner wall of the top end of the housing, a plurality of rotating brackets are arranged equidistantly at the top end of the groove, a magnet 1 is transversely mounted at the bottom end of the rotating bracket, and a synchronous wheel set is fixedly connected to the top end of the rotating bracket;

[0012] Two adjacent synchronous wheel groups are sleeved with synchronous belts at the same time, and the top of one of the synchronous wheel groups is connected to motor 1, the top of the shell is fixedly connected to a heat insulation bin, and the synchronous wheel group and the rotating bracket are both located in the heat insulation bin, the motor 1 is installed at the top of the heat insulation bin, and the output end of the motor 1 passes through the heat insulation bin and is connected to the synchronous wheel group;

[0013] The inner wall of the groove is provided with a plurality of bearing frames 1 at equal intervals, and each synchronous wheel set is respectively connected to the bearing frame 1, and each magnet 1 is adsorbed with a magnet 2 across the groove;

[0014] The plurality of magnets 2 are respectively located between two adjacent baffles, the bottom ends of the magnets 2 are fixedly connected with a cross bracket, and the bottom end of the cross bracket is provided with a plurality of convex rods equidistantly distributed.

[0015] By providing an oscillation mechanism, in the oscillation mechanism, each magnet located at the bottom of the rotating bracket can be driven to rotate by a motor, thereby driving multiple cross brackets located at the bottom of the groove to rotate through the groove, and the hot fluid located at the top and in the flow process is stirred by the setting of the convex rod. The oscillation generated during the stirring process can synchronously break the uniformity of temperature distribution, increase the temperature difference, and thus accelerate heat transfer. It can be assisted by the drainage mechanism to synchronously act on the hot fluid flowing at the top and the bottom, thereby further improving the heat exchange efficiency.

[0016] In a preferred solution, the drainage mechanism includes a scraper plate 1 and a scraper plate 2, and the tops of the scraper plates 1 and 2 are respectively provided with an inclined surface 2 inclined toward the position of the heat transfer tube bundle, one side of the scraper plate 1 is fixedly connected to a support tube 3, and one end of the support tube 3 is sequentially fixedly connected to the support tube 2, the gear 3 and the extension tube, and a plurality of convex strips are arranged around the outside of the extension tube, one side of the scraper plate 2 is simultaneously fixedly connected to a support shaft 2 and a support tube 1, one side of the support shaft 2 is fixedly connected to a support shaft 3, and the support shaft 3 passes through the support tube 1 and one side of the shell and is connected to a motor 3, the support tube 2, the gear 3 and the extension tube are simultaneously sleeved on the support shaft 3, and part of the support tube 2 is sleeved between the support shaft 3 and the support tube 1;

[0017] A C-shaped support plate is fixedly connected to the support shaft three, and the C-shaped support plate is located on the outside of the shell, an electric clamp is installed on the inner wall of one side of the C-shaped support plate, and the electric clamp is connected to a battery, and the battery of the electric clamp is also arranged on the outside of the shell, and the electric clamp is clamped outside the extension tube, and the two opposite sides of the C-shaped support plate are respectively fixedly connected with sliding plates, an annular limiting groove is fixedly connected to the outer wall of one end of the shell, and the sliding plate is movably engaged in the annular limiting groove, and a bearing frame three is fixedly connected to the outer wall of the same end of the shell, and the support shaft three passes through and is rotatably connected to the bearing frame three;

[0018] The motor three is installed outside the bearing frame three, and the C-shaped support plate is located on the inner side of the bearing frame three. The outer wall of the gear three is movably engaged with a rack, and the outer wall of the bottom end of the rack is provided with multiple limit sliders. A hydraulic rod and a limit slide rod are simultaneously installed on the C-shaped support plate, and multiple limit slides are simultaneously sleeved on the limit slide rod. A side support plate is fixedly connected to the outer wall of one side of the rack, and the output end of the hydraulic rod is connected to the side support plate.

[0019] By providing a drainage mechanism, when the injection of cold fluid stops, the hydraulic rod is started to extend, so that the outer side of the scraper 1 can simultaneously adhere to the inner wall of the tube sheet and the shell and rotate. When the scraper 2 is fixed, the scraper 1 rotates to form an integral relative plane with the scraper 2. The electric clamp is electrically connected to the battery. Then the electric clamp clamps the outer side of the extension tube to fix the position of the scraper 1. At this time, the lower part of the inclined surface 2 faces the setting direction of the tube sheet. Then the motor 3 drives the scraper 1 and the scraper 2 to rotate, so that the two can adhere to the inner wall of the shell to transfer the residual cold fluid and push the cold fluid upward until it enters the corresponding heat transfer tube bundle to avoid scaling caused by the retention of the cold fluid. Correspondingly, the scraper 1 can be recovered and adhered to the bottom of the scraper 2 by the retraction of the hydraulic rod, so as to reduce the angle between the two as much as possible, so as to avoid the unfolded scraper structure from partially blocking the connection path between the cold fluid inlet pipe and the heat transfer tube bundle, so as to ensure that the cold fluid can enter the heat transfer tube bundle evenly, so as to ensure the utilization rate of the heat transfer tube bundle.

[0020] As can be seen from the above, a shell-and-tube heat exchanger capable of improving heat exchange efficiency comprises a shell, wherein the top inner wall and the bottom inner wall of one side of the shell are respectively provided with a hot fluid inlet pipe and a cold fluid outlet pipe, and the top inner wall and the bottom inner wall of the opposite side of the shell are respectively provided with a cold fluid inlet pipe and a hot fluid outlet pipe, the top inner wall of the shell is provided with an oscillation mechanism, the bottom inner wall of the shell is provided with a drainage mechanism, and the inner wall of one side of the shell is provided with a drainage mechanism, and the drainage mechanism and the cold fluid inlet pipe are located on the same side, so that The inner wall of the shell is simultaneously fitted with two tube sheets, and a heat transfer tube bundle is simultaneously connected between the two tube sheets, the hot fluid inlet pipe and the hot fluid outlet pipe are located between the two tube sheets, and a plurality of baffles are equidistantly and staggeredly arranged up and down outside the heat transfer tube bundle, and a plurality of bottom frames are fixedly connected to the bottom end of the shell; the drainage mechanism comprises a support bin fixed to the inner wall of the bottom end of the shell, a rotating bin is movably fitted in the support bin, one end of the rotating bin is fixedly connected to a support shaft 1, and the support shaft 1 passes through the support bin and is connected to a gear 2, The gear 2 is meshed with the gear 1, and one side of the gear 1 is connected to the motor 2. A drain port is provided on one side of the rotating bin, and the diameter of the drain port is consistent with the inner diameter of the rotating bin. Two inclined plates are fixedly connected in the rotating bin, and the two inclined plates are respectively located on both sides of the drain port. A connecting pipe is fixedly connected to the inner wall of the other end of the rotating bin, and the connecting pipe is colinear with the rotating axis of the rotating bin. The connecting pipe passes through the supporting bin and extends into the hot fluid outlet pipe, and the inner side of the connecting pipe is provided with an inclined direction toward the setting direction of the hot fluid outlet pipe. The inclined surface 1, multiple groups of multi-channel tubes are arranged at the gap between the rotating bin and the inclined plate, and the input end and output end of each group of multi-channel tubes penetrate the inner wall of the rotating bin in the same direction at the same time, and the output end of each group of multi-channel tubes is respectively provided with a high-pressure nozzle, and the connection between the input end and the output end of each group of multi-channel tubes is respectively provided with a water pump, and the bottom ends of the multiple baffles located below are respectively provided with sealing plates 2, and the bottom end of the tube sheet is provided with sealing plate 1, and the outer walls of the bottom ends of sealing plates 1 and 2 are movably fitted to the outer wall of the rotating bin. The shell-and-tube heat exchanger that can improve the heat exchange efficiency provided by the present invention has the technical effect of completing the drainage of the hot fluid retention liquid to avoid scaling caused by too long retention time, reducing the frequency of cleaning the outer wall of the heat transfer tube bundle, and at the same time causing the hot fluid in the flow process to oscillate, thereby improving the heat transfer efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a shell-and-tube heat exchanger proposed by the present invention that can improve heat exchange efficiency.

[0022] Figure 2 A schematic diagram of the internal structure of a shell-and-tube heat exchanger proposed by the present invention that can improve heat exchange efficiency.

[0023] Figure 3The present invention provides a schematic diagram of the connection structure of the heat transfer tube bundle and the baffle of a shell-and-tube heat exchanger which can improve the heat exchange efficiency.

[0024] Figure 4 The present invention provides a schematic diagram of a disassembled liquid discharge mechanism of a shell-and-tube heat exchanger that can improve heat exchange efficiency.

[0025] Figure 5 This is a schematic diagram of the internal structure of a rotating chamber of a shell-and-tube heat exchanger proposed by the present invention that can improve heat exchange efficiency.

[0026] Figure 6 This is a schematic diagram of the overall structure of an oscillation mechanism of a shell-and-tube heat exchanger proposed by the present invention that can improve heat exchange efficiency.

[0027] Figure 7 This is a schematic diagram of the disassembly of part of the oscillation mechanism of a shell-and-tube heat exchanger proposed by the present invention that can improve heat exchange efficiency.

[0028] Figure 8 The present invention is a schematic diagram of the overall structure of a drainage mechanism of a shell-and-tube heat exchanger that can improve heat exchange efficiency.

[0029] Fig. 9 This is a schematic diagram of the disassembly of a drainage mechanism of a shell-and-tube heat exchanger proposed by the present invention that can improve heat exchange efficiency.

[0030] Fig.10 This is a schematic diagram of the disassembly of a gear three-connection structure of a shell-and-tube heat exchanger proposed by the present invention that can improve heat exchange efficiency.

[0031] In the figure: 1, hot fluid inlet pipe; 2, cold fluid outlet pipe; 3, shell; 4, oscillating mechanism; 5, cold fluid inlet pipe; 6, hot fluid outlet pipe; 7, drainage mechanism; 8, bottom frame; 9, drainage mechanism; 10, tube sheet; 11, heat transfer tube bundle; 12, baffle; 401, motor 1; 402, insulation bin; 403, synchronous belt; 404, synchronous wheel set; 405, bearing frame 1; 406, groove; 407, rotating bracket; 408, magnet 1; 409, magnet 2; 410, cross bracket; 411, convex rod; 701, supporting bin; 702, drainage port; 703, rotating bin; 704, sealing plate 1; 705, sealing plate 2; 706, through groove; 707, bearing frame 2; 708, bearing; 709, motor 2; 710, gear 1; 711, gear 2; 712, high pressure nozzle; 713, multi-way pipe; 714, water pump; 715, perforation 1; 716, perforation 2; 717, connecting pipe; 718, support shaft 1; 719, inclined plate; 720, inclined surface 1; 901, annular limit groove; 902, bearing frame 3; 903, inclined surface 2; 904, scraper 1; 905, gear 3; 906, hydraulic rod; 9 07, support shaft two; 908, support tube one; 909, support shaft three; 910, motor three; 911, C-type support plate; 912, sliding plate; 913, scraper two; 914, support tube two; 915, support tube three; 916, rack; 917, side support plate; 918, limit slider; 919, limit slide rod; 920, electric clamp; 921, extension tube; 922, convex strip. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] The present invention discloses a shell-and-tube heat exchanger capable of improving heat exchange efficiency, which is mainly used in chemical production scenarios.

[0034] Reference Figure 1-Figure 5A shell-and-tube heat exchanger capable of improving heat exchange efficiency comprises a shell 3, a hot fluid inlet pipe 1 and a cold fluid outlet pipe 2 are respectively arranged on the top inner wall and the bottom inner wall of one side of the shell 3, a cold fluid inlet pipe 5 and a hot fluid outlet pipe 6 are respectively arranged on the top inner wall and the bottom inner wall of the opposite side of the shell 3, an oscillation mechanism 4 is arranged on the top inner wall of the shell 3, a drainage mechanism 7 is arranged on the bottom inner wall of the shell 3, a drainage mechanism 9 is arranged on one inner wall of the shell 3, and the drainage mechanism 9 and the cold fluid inlet pipe 5 are located on the same side, two tube sheets 10 are simultaneously arranged on the inner wall of the shell 3, and a heat transfer tube bundle 11 is simultaneously connected between the two tube sheets 10, the hot fluid inlet pipe 1 and the hot fluid outlet pipe 6 are located between the two tube sheets 10, a plurality of baffles 12 are equidistantly arranged up and down outside the heat transfer tube bundle 11, and a plurality of bottom frames 8 are fixedly connected to the bottom end of the shell 3;

[0035] The discharge mechanism 7 includes a support bin 701 fixed to the inner wall of the bottom end of the shell 3, a rotating bin 703 is movably connected in the support bin 701, one end of the rotating bin 703 is fixedly connected to a support shaft 1 718, and the support shaft 1 718 passes through the support bin 701 and is connected to a gear 2 711, the gear 2 711 is meshed with a gear 1 710, and one side of the gear 1 710 is connected to a motor 2 709, a discharge port 702 is provided through one side of the rotating bin 703, and the diameter of the discharge port 702 is consistent with the inner diameter of the rotating bin 703, two inclined plates 719 are fixedly connected in the rotating bin 703, and the two inclined plates 719 are respectively located on both sides of the discharge port 702, and the inner wall of the other end of the rotating bin 703 is fixedly connected to a connecting pipe 71 7, and the connecting pipe 717 is colinear with the rotation axis of the rotating chamber 703, the connecting pipe 717 passes through the supporting chamber 701 and extends into the hot fluid outlet pipe 6, and the inner side of the connecting pipe 717 is provided with an inclined surface 720 inclined in the direction in which the hot fluid outlet pipe 6 is set, and a plurality of groups of multi-channel tubes 713 are arranged in the gap between the rotating chamber 703 and the inclined plate 719, and the input end and the output end of each group of multi-channel tubes 713 simultaneously penetrate the inner wall of the rotating chamber 703 in the same direction, and the output end of each group of multi-channel tubes 713 is respectively provided with a high-pressure nozzle 712, and the connection between the input end and the output end of each group of multi-channel tubes 713 is respectively provided with a water pump 714, and the bottom ends of the plurality of baffles 12 located below are respectively provided with sealing plates 705, and the tube sheet 1 0 is provided with a sealing plate 1 704 at the bottom end, and the outer walls of the bottom ends of the sealing plates 1 704 and 2 705 are movably fitted to the outer wall of the rotating bin 703. The motor 2 709 in the discharge mechanism 7 drives the gear 1 710 to rotate, and then drives the gear 2 711 to rotate through the meshing structure, and at the same time drives the rotating bin 703 to rotate in contact with the inner wall of the supporting bin 701 to change the setting position of the discharge port 702. When the discharge port 702 is located at the top, the hot fluid remaining at the bottom of the shell 3 can be guided to enter the rotating bin 703, and guided along the inclined plates 719 on both sides, and enter the hot fluid outlet pipe 6 through the connecting pipe 717 to be discharged, thereby completing the drainage of the hot fluid retention liquid to avoid the retention time being too long and causing Scaling is prevented, and the cleaning frequency of the outer wall of the heat transfer tube bundle 11 is reduced. The setting based on the inclined surface 720 in the connecting pipe 717 can increase the difficulty of liquid climbing, thereby preventing the hot fluid from entering the rotating bin 703 under the normal discharge state of the hot fluid outlet pipe 6. In addition, when the discharge port 702 is located directly below the rotating bin 703, the input and output ends of the multiple groups of multi-way tubes 713 are connected with the inside of the shell 3 at the same time, thereby sucking in the hot fluid through the input end of the multi-way tube 713, and then guided by the water pump 714, and sprayed out by the high-pressure nozzle 712, and acting on the hot fluid from the bottom, so that the hot fluid in the flow process will vibrate, and through vibration, the uniformity of temperature distribution is broken, the temperature difference is increased, and the heat transfer efficiency is improved.

[0036] Reference Figure 4In a preferred embodiment, a through groove 706 is provided at the connection between the shell 3 and the support bin 701, the motor 2 709 is fixed outside the bearing frame 2 707, and the output end of the motor 2 709 passes through the bearing frame 2 707 and is connected to the gear 1 710, a bearing 708 is inlaid on the inner wall of one side of the support bin 701, and the other side of the gear 1 710 is connected to the bearing 708.

[0037] Reference Figure 4 In a preferred embodiment, one side of the support bin 701 and the hot fluid outlet pipe 6 is penetrated by a second perforation 716, and the connecting pipe 717 is located in the second perforation 716 and is tightly connected to the inner wall of the second perforation 716, and one side of the rotating bin 703 is penetrated by a plurality of first perforations 715, and the input ends and output ends of the plurality of multi-way tubes 713 are respectively and correspondingly embedded in the plurality of first perforations 715, and the cut ends of the input ends and output ends of the multi-way tubes 713 are consistent with the outer wall of the rotating bin 703.

[0038] Reference Figure 6 and Figure 7 In a preferred embodiment, the oscillation mechanism 4 includes a groove 406 arranged on the inner wall of the top end of the shell 3, and a plurality of rotating brackets 407 are equidistantly arranged at the top of the groove 406, and a magnet 408 is horizontally installed at the bottom end of the rotating bracket 407, and the top of each rotating bracket 407 is fixedly connected to a synchronous wheel set 404.

[0039] Reference Figure 6 and Figure 7 In a preferred embodiment, two adjacent synchronous wheel sets 404 are simultaneously sleeved with synchronous belts 403, and the top of one of the synchronous wheel sets 404 is connected to a motor 401, the top of the shell 3 is fixedly connected to an insulating bin 402, and the synchronous wheel set 404 and the rotating bracket 407 are both located in the insulating bin 402, the motor 401 is installed at the top of the insulating bin 402, and the output end of the motor 401 passes through the insulating bin 402 and is connected to the synchronous wheel set 404.

[0040] Reference Figure 6 and Figure 7 In a preferred embodiment, a plurality of bearing frames 405 are equidistantly arranged on the inner wall of the groove 406 , and each synchronous wheel set 404 is respectively connected to the bearing frame 405 , and each magnet 408 is adsorbed with a magnet 2 409 across the groove 406 .

[0041] Reference Figure 6 and Figure 7In a preferred embodiment, a plurality of magnets 409 are respectively located between two adjacent baffles 12, a cross bracket 410 is fixedly connected to the bottom end of the magnet 409, and a plurality of convex rods 411 are equidistantly distributed at the bottom end of the cross bracket 410. In the oscillation mechanism 4, one of the synchronous wheel sets 404 can be driven to rotate by the motor 401, and based on the linkage setting of the synchronous belt 403, a plurality of rotating brackets 407 can be driven to rotate synchronously, and further, the magnet 408 located at the bottom end of the rotating bracket 407 can be driven to rotate, and the thickness of the inner wall of the top end of the shell 3 can be made thinner by the setting of the groove 406, so that it will not affect the magnet 408. 8 and the adsorption transmission of magnet 2 409 can be affected, thereby driving multiple cross brackets 410 located at the bottom of the groove 406 to rotate through the groove 406, and the hot fluid at the top and in the flow process can be stirred by the setting of the convex rod 411, and the vibration generated during the stirring process can synchronously break the uniformity of temperature distribution, increase the temperature difference, and thus accelerate heat transfer, and can be assisted by the drainage mechanism 7 to synchronously act on the hot fluid flowing at the top and the bottom to further improve the heat exchange efficiency, and based on the setting of the insulation bin 402 and the setting of the magnetic attraction structure, while not affecting the sealing degree of the shell 3, it will not affect the heat insulation inside the shell 3.

[0042] Reference Figure 8 and Fig. 9 In a preferred embodiment, the drainage mechanism 9 includes a scraper plate 1 904 and a scraper plate 2 913, and the tops of the scraper plates 1 904 and 913 are respectively provided with an inclined surface 2 903 inclined toward the position of the heat transfer tube bundle 1, one side of the scraper plate 1 904 is fixedly connected to a support tube 3 915, and one end of the support tube 3 915 is sequentially fixedly connected to the support tube 2 914, the gear 3 905 and the extension tube 921, and the extension tube 921 is surrounded by a plurality of convex strips 922, and the scraper plate 2 913 One side of the support shaft 907 is fixedly connected with the support shaft 2 907 and the support tube 1 908, one side of the support shaft 2 907 is fixedly connected with the support shaft 3 909, and the support shaft 3 909 passes through the support tube 1 908 and one side of the shell 3 and is connected with the motor 3 910, and a sealed bearing is provided at the connection between the support shaft 3 909 and the shell 3, the support tube 2 914, the gear 3 905 and the extension tube 921 are simultaneously sleeved on the support shaft 3 909, and part of the support tube 2 914 is sleeved between the support shaft 3 909 and the support tube 1 908.

[0043] Reference Figure 8 and Fig. 9In a preferred embodiment, a C-shaped support plate 911 is fixedly connected to the support shaft three 909, and the C-shaped support plate 911 is located on the outside of the shell 3, an electric clamp 920 is installed on the inner wall of one side of the C-shaped support plate 911, and the electric clamp 920 is connected to a battery, and the battery of the electric clamp 920 is also arranged on the outside of the shell 3, the electric clamp 920 is clamped outside the extension tube 921, and the opposite sides of the C-shaped support plate 911 are respectively fixedly connected with slides 912, an annular limiting groove 901 is fixedly connected to the outer wall of one end of the shell 3, and the slide 912 is movably clamped in the annular limiting groove 901, and a bearing frame three 902 is fixedly connected to the outer wall of the same end of the shell 3, and the support shaft three 909 passes through and is rotatably connected in the bearing frame three 902.

[0044] Reference Figure 8-Figure 10In a preferred embodiment, the motor three 910 is installed outside the bearing frame three 902, and the C-type support plate 911 is located on the inner side of the bearing frame three 902. The outer wall of the gear three 905 is movably engaged with a rack 916, and the outer wall of the bottom end of the rack 916 is provided with a plurality of limit sliders 918. A hydraulic rod 906 and a limit slider 919 are installed on the C-type support plate 911 at the same time. A plurality of limit sliders 918 are simultaneously sleeved on the limit slider 919. A side support plate 917 is fixedly connected to the outer wall of one side of the rack 916, and the output end of the hydraulic rod 906 is connected to the side support plate 917. When the cold fluid enters between the tube sheet 10 and the shell 3 from the cold fluid inlet pipe 5, and then enters the heat transfer tube bundle 11, when the cold fluid stops being poured in, part of the fluid will be retained. The gap between the tube sheet 10 and the shell 3 cannot enter the heat transfer tube bundle 11. In the drainage mechanism 9, when the cold fluid stops being injected, the hydraulic rod 906 is electrically connected to the battery, and the hydraulic rod 906 is started to extend, pushing the rack 916 to translate, and the translation stability is ensured under the structure that the limit slider 918 moves on the limit slider 919. As the rack 916 translates, the gear three 905 is synchronously driven to rotate a certain distance, so that the outer side of the scraper one 904 can be simultaneously attached to the inner wall of the tube sheet 10 and the shell 3 to rotate, wherein the support tube two 914 is sleeved between the support tube one 908 and the support shaft three 909, and the support tube three 915 is sleeved outside the support shaft three 909, and the scraper one 904 can be ensured by the arrangement of the support tube one 908 and the support shaft three 909. 04 rotation stability, when scraper 2 913 is fixed, scraper 1 904 rotates to form an integral relative plane with scraper 2 913, the electric clamp 920 is electrically connected to the battery, and then the electric clamp 920 clamps the outside of the extension tube 921 to fix the position of scraper 1 904, the setting of the convex strip 922 can ensure the stability of the clamping of the electric clamp 920, at this time, the lower part of the inclined surface 2 903 faces the setting direction of the tube sheet 10, and then the scraper 2 913 is driven to rotate by the motor 3 910, and the scraper 1 904 is driven to rotate synchronously by the clamping of the electric clamp 920, so that the two can fit the inner wall of the shell 3 to transfer the residual cold fluid, and push the cold fluid upward until it enters the corresponding heat transfer tube bundle 11 to avoid the cold flow The retention of the body causes scaling. During the rotation process, the sliding vane 912 can move along the annular limiting groove 901 to reduce the pressure on the output end of the motor three 910 and ensure the stability of the rotation process. Compared with the structure using only a single scraper, when pushing the solution, the exposed side may cause the cold fluid to fall back to the bottom in an inclined state. The designed scraper expansion structure allows the two scrapers to serve as buffer platforms for each other. The solution can fall from one scraper to the other scraper and can also enter the heat transfer tube bundle 11. The recovery speed is optimized by reducing the probability of the cold fluid falling back. Accordingly, before the cold fluid is injected again, the hydraulic rod 906 can be retracted to make the scraper one 904 recover and fit the bottom of the scraper two 913 to minimize the angle between the two.Avoid the unfolded scraper structure from partially blocking the connection path between the cold fluid inlet pipe 5 and the heat transfer tube bundle 11, so as to ensure that the cold fluid can evenly enter the heat transfer tube bundle 11, so as to ensure the utilization rate of the heat transfer tube bundle 11.

[0045] Working principle: In the liquid discharge mechanism 7, the motor 2 709 drives the gear 1 710 to rotate, and then drives the gear 2 711 to rotate through the meshing structure, and at the same time drives the rotating chamber 703 to rotate in close contact with the inner wall of the supporting chamber 701 to change the setting position of the liquid discharge port 702. When the liquid discharge port 702 is located at the top, the hot fluid remaining at the bottom of the shell 3 can be guided to enter the rotating chamber 703, and guided along the inclined plates 719 on both sides, and enter the hot fluid outlet pipe 6 through the connecting pipe 717 for discharge, completing the drainage of the hot fluid retention liquid to avoid the accumulation of the hot fluid due to excessive retention time. The outer wall of the heat transfer tube bundle 11 is cleaned by the inclined surface 720 in the connecting pipe 717, which increases the difficulty of the liquid to climb up, thereby preventing the hot fluid from entering the rotating chamber 703 in the normal discharge state of the hot fluid outlet pipe 6. In addition, when the discharge port 702 is located directly below the rotating chamber 703, the input and output ends of the multiple groups of multi-channel pipes 713 are connected to the inside of the shell 3 at the same time, thereby sucking in the hot fluid through the input end of the multi-channel pipe 713, and then guided by the water pump 714, sprayed by the high-pressure nozzle 712, and acting on the hot fluid from the bottom, so that the flow The hot fluid in the process generates vibration, and the uniformity of temperature distribution is broken through vibration, the temperature difference is increased, and the heat transfer efficiency is improved. At the same time, in the oscillation mechanism 4, one of the synchronous wheel sets 404 can be driven to rotate by the motor 1 401, and based on the linkage setting of the synchronous belt 403, multiple rotating brackets 407 can be driven to rotate synchronously, and further, the magnet 1 408 located at the bottom of the rotating bracket 407 is driven to rotate. By setting the groove 406, the thickness of the inner wall of the top end of the shell 3 can be made thinner, so that it will not affect the adsorption transmission of the magnet 1 408 and the magnet 2 409. This can drive the multiple cross brackets 410 located at the bottom of the groove 406 to rotate through the groove 406, and the hot fluid at the top in the flow process can be stirred by the setting of the convex rod 411. The vibration generated during the stirring process can simultaneously break the uniformity of temperature distribution and increase the temperature difference, thereby accelerating heat transfer. It can be assisted by the drainage mechanism 7 to synchronously act on the hot fluid flowing at the top and bottom to further improve the heat exchange efficiency. In addition, based on the setting of the insulation chamber 402 and the setting of the magnetic attraction structure, it will not affect the sealing degree of the shell 3 and will not affect the heat insulation inside the shell 3.

[0046] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A shell and tube heat exchanger capable of improving heat exchange efficiency, comprising a shell (3), characterized in that: The top inner wall and the bottom inner wall of one side of the shell (3) are respectively provided with a hot fluid inlet pipe (1) and a cold fluid outlet pipe (2); the top inner wall and the bottom inner wall of the opposite side of the shell (3) are respectively provided with a cold fluid inlet pipe (5) and a hot fluid outlet pipe (6); the top inner wall of the shell (3) is provided with an oscillation mechanism (4); the bottom inner wall of the shell (3) is provided with a drainage mechanism (7); and the inner wall of one side of the shell (3) is provided with a drainage mechanism (9). The drainage mechanism (9) and the cold fluid inlet pipe (5) are located on the same side, two tube sheets (10) are simultaneously arranged on the inner wall of the shell (3), and a heat transfer tube bundle (11) is simultaneously connected between the two tube sheets (10), the hot fluid inlet pipe (1) and the hot fluid outlet pipe (6) are located between the two tube sheets (10), a plurality of baffles (12) are equidistantly arranged vertically outside the heat transfer tube bundle (11), and a plurality of base frames (8) are fixedly connected to the bottom end of the shell (3); The liquid discharge mechanism (7) comprises a support bin (701) fixed to the inner wall of the bottom end of the housing (3); a rotating bin (703) is movably connected to the support bin (701); one end of the rotating bin (703) is fixedly connected to a support shaft 1 (718); the support shaft 1 (718) passes through the support bin (701) and is connected to a gear 2 (711); the gear 2 (711) is meshed with a gear 1 (710); and one side of the gear 1 (710) is connected to a motor 2 ( The rotating chamber (703) is provided with a liquid discharge port (702) on one side thereof, and the diameter of the liquid discharge port (702) is consistent with the inner diameter of the rotating chamber (703). Two inclined plates (719) are fixedly connected inside the rotating chamber (703), and the two inclined plates (719) are respectively located on both sides of the liquid discharge port (702). A connecting pipe (717) is fixedly connected to the inner wall of the other end of the rotating chamber (703), and the connecting pipe (717) is connected to the rotating chamber (703). The rotating axes are colinear, the connecting pipe (717) passes through the supporting bin (701) and extends into the hot fluid outlet pipe (6), and the inner side of the connecting pipe (717) is provided with an inclined surface (720) inclined in the direction in which the hot fluid outlet pipe (6) is provided, and a plurality of groups of multi-channel pipes (713) are provided in the gap between the rotating bin (703) and the inclined plate (719), and the input end and the output end of each group of multi-channel pipes (713) simultaneously penetrate the inner wall of the rotating bin (703) in the same direction, and each group of the multi-channel pipes (713) The output ends of the through pipes (713) are respectively provided with high-pressure nozzles (712), and the connection between the input end and the output end of each group of multi-through pipes (713) is respectively provided with water pumps (714), the bottom ends of the plurality of baffles (12) located below are respectively provided with sealing plates 2 (705), and the bottom end of the tube sheet (10) is provided with sealing plate 1 (704), and the bottom outer walls of the sealing plates 1 (704) and 2 (705) are movably fitted to the outer wall of the rotating bin (703).

2. A shell-and-tube heat exchanger capable of improving heat exchange efficiency according to claim 1, characterized in that: A through groove (706) is provided at the connection between the housing (3) and the support bin (701); the second motor (709) is fixed outside the second bearing frame (707); and the output end of the second motor (709) passes through the second bearing frame (707) and is connected to the first gear (710); a bearing (708) is embedded in the inner wall of one side of the support bin (701); and the other side of the first gear (710) is connected to the bearing (708).

3. A shell-and-tube heat exchanger capable of improving heat exchange efficiency according to claim 1, characterized in that: One side of the support bin (701) and the hot fluid outlet pipe (6) is penetrated by a second perforation (716), and the connecting pipe (717) is located in the second perforation (716) and is tightly connected to the inner wall of the second perforation (716). One side of the rotating bin (703) is penetrated by a plurality of first perforations (715), and the input ends and output ends of the plurality of multi-way tubes (713) are respectively and correspondingly embedded in the plurality of first perforations (715), and the cut ends of the input ends and output ends of the multi-way tubes (713) are consistent with the outer wall of the rotating bin (703).

4. A shell-and-tube heat exchanger capable of improving heat exchange efficiency according to claim 1, characterized in that: The oscillating mechanism (4) comprises a groove (406) arranged on the inner wall of the top end of the shell (3), a plurality of rotating brackets (407) are equidistantly arranged at the top end of the groove (406), and a magnet (408) is transversely mounted at the bottom end of the rotating bracket (407), and a synchronous wheel set (404) is fixedly connected to the top end of each rotating bracket (407).

5. A shell-and-tube heat exchanger capable of improving heat exchange efficiency according to claim 4, characterized in that: Two adjacent synchronous wheel groups (404) are simultaneously sleeved with synchronous belts (403), and the top end of one of the synchronous wheel groups (404) is connected to a motor 1 (401), the top end of the shell (3) is fixedly connected to a heat insulation bin (402), and the synchronous wheel group (404) and the rotating bracket (407) are both located in the heat insulation bin (402), the motor 1 (401) is installed at the top end of the heat insulation bin (402), and the output end of the motor 1 (401) passes through the heat insulation bin (402) and is connected to the synchronous wheel group (404).

6. A shell-and-tube heat exchanger capable of improving heat exchange efficiency according to claim 5, characterized in that: The inner wall of the groove (406) is provided with a plurality of bearing frames (405) at equal intervals, and each synchronous wheel set (404) is respectively connected to the bearing frame (405), and each magnet (408) is adsorbed with a magnet (409) across the groove (406).

7. A shell-and-tube heat exchanger capable of improving heat exchange efficiency according to claim 6, characterized in that: The plurality of magnets 2 (409) are respectively located between two adjacent baffles (12); the bottom end of the magnets 2 (409) is fixedly connected to a cross bracket (410), and the bottom end of the cross bracket (410) is provided with a plurality of convex rods (411) equidistantly distributed.

8. The shell-and-tube heat exchanger capable of improving heat exchange efficiency according to claim 1, characterized in that: The drainage mechanism (9) comprises a scraper plate 1 (904) and a scraper plate 2 (913), and the top ends of the scraper plate 1 (904) and the scraper plate 2 (913) are respectively provided with an inclined surface 2 (903) inclined toward the position of the heat transfer tube bundle (1); one side of the scraper plate 1 (904) is fixedly connected to a support tube 3 (915), and one end of the support tube 3 (915) is sequentially fixedly connected to the support tube 2 (914), the gear 3 (905) and the extension tube (921); the extension tube (921) is surrounded by a plurality of convex strips (922); One side of plate 2 (913) is fixedly connected to support shaft 2 (907) and support tube 1 (908), one side of support shaft 2 (907) is fixedly connected to support shaft 3 (909), and support shaft 3 (909) passes through support tube 1 (908) and one side of the shell (3) is connected to motor 3 (910), support tube 2 (914), gear 3 (905) and extension tube (921) are simultaneously sleeved on support shaft 3 (909), and part of support tube 2 (914) is sleeved between support shaft 3 (909) and support tube 1 (908).

9. A shell-and-tube heat exchanger capable of improving heat exchange efficiency according to claim 8, characterized in that: The support shaft (909) is fixedly connected to a C-shaped support plate (911), and the C-shaped support plate (911) is located on the outside of the shell (3). An electric clamp (920) is installed on the inner wall of one side of the C-shaped support plate (911), and the electric clamp (920) is connected to a battery. The battery of the electric clamp (920) is also arranged on the outside of the shell (3). The electric clamp (920) is clamped outside the extension tube (921). The C-shaped support plate (911) is fixedly connected to sliding plates (912) on opposite sides. The outer wall of one end of the shell (3) is fixedly connected to an annular limiting groove (901), and the sliding plate (912) is movably engaged in the annular limiting groove (901). The outer wall of the same end of the shell (3) is fixedly connected to a bearing frame (902), and the support shaft (909) passes through and is rotatably connected to the bearing frame (902).

10. A shell-and-tube heat exchanger capable of improving heat exchange efficiency according to claim 9, characterized in that: The motor three (910) is installed outside the bearing frame three (902), and The C-shaped support plate (911) is located on the inner side of the bearing frame three (902); the outer wall of the gear three (905) is movably meshed with a rack (916), and the outer wall of the bottom end of the rack (916) is provided with a plurality of limit sliders (918); a hydraulic rod (906) and a limit slider (919) are simultaneously installed on the C-shaped support plate (911); a plurality of limit sliders (918) are simultaneously sleeved on the limit slider (919); a side outer wall of one side of the rack (916) is fixedly connected with a side support plate (917), and the output end of the hydraulic rod (906) is connected to the side support plate (917).

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