Shell and tube heat exchange device for enhancing heat exchange efficiency and use method thereof

Abstract

The present invention discloses a shell and tube heat exchange device for enhancing heat exchange efficiency, comprising a heat exchange shell, a heat exchange component arranged inside the heat exchange shell, a tube sheet rotatably connected to the end of the heat exchange shell and connected to the heat exchange component, and a head arranged on both sides of the tube sheet; the heat exchange component comprises a first heat exchange tube connected to a central hole groove of the tube sheet and arranged along the axis of the shell, a flow guide component slidably arranged on the first heat exchange tube, and a plurality of second heat exchange tubes parallel to the first heat exchange tube; the second heat exchange tube passes through the flow guide component, and the two ends of the second heat exchange tube are respectively connected to the peripheral hole grooves provided on the tube sheet in a one-to-one correspondence; the present invention effectively enhances the heat exchange efficiency of the shell and tube heat exchange device by arranging the flow guide component, the flow rate control component, and the spoiler component, and the device has the advantages of low manufacturing cost and easy maintenance and replacement.

Description

Technical Field

[0001] The present invention relates to the technical field of heat exchange equipment, and in particular to a shell and tube heat exchange equipment for enhancing heat exchange efficiency and a use method thereof. Background Art

[0002] Shell and tube heat exchanger is a highly efficient and energy-saving heat transfer equipment with the characteristics of compact structure, small size, light weight, high strength and long life. Shell and tube heat exchanger has a wide range of applications. It is mainly used to heat liquids and condense gases in chemical production; it is used to cool liquids or air in refrigeration systems.

[0003] Shell and tube heat exchanger is a new type of efficient tube-in-tube heat exchanger made of cylindrical metal corrugated thin-walled tubes; its structure is mainly composed of shell (outer surface), heat transfer tube bundle (inner surface) and sealing gasket, etc. The shell is generally stamped from stainless steel plate, or welded from carbon steel thin plate; the internal heat transfer elements are mostly U-shaped fins or spiral grooved corrugated metal sheets; this type of heat exchanger is popular because of its large heat transfer area and ability to work at lower temperatures, so it has a wide range of applications, especially in the fields of chemical industry, energy, transportation, machinery, refrigeration, air conditioning, etc. The heat exchanger can make full use of secondary energy in industry, and can achieve waste heat recovery and energy saving.

[0004] Shell and tube heat exchanger is one of the basic types of heat exchangers. It has been used in industry since the 1880s. This type of heat exchanger has a sturdy structure, large processing capacity, a wide range of materials, strong adaptability, easy manufacturing, and relatively convenient cleaning. It can also be used at high temperature and high pressure. However, it is not as advanced as plate heat exchangers, plate-fin heat exchangers, and plate and shell heat exchangers in terms of heat transfer efficiency, compactness, and metal consumption.

[0005] Most of the shell and tube heat exchange devices in the prior art have the problems of low efficiency and high cost. Based on this, the present application proposes a shell and tube heat exchange device for enhancing heat exchange efficiency and a method of use to effectively improve the above problems. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides a shell and tube heat exchange device and a method of using the same for enhancing heat exchange efficiency.

[0007] The technical solution of the present invention is: a shell and tube heat exchange device for enhancing heat exchange efficiency, comprising a heat exchange shell, a heat exchange component arranged inside the heat exchange shell, a tube sheet rotatably connected to the end of the heat exchange shell and communicating with the heat exchange component, and heads arranged on both sides of the tube sheet;

[0008] The heat exchange shell comprises a shell, a support arranged at the bottom of the shell, and a first inlet pipe arranged at the bottom of one side of the shell;

[0009] The heat exchange assembly includes a first heat exchange tube connected to the central hole groove of the tube sheet and arranged along the axis of the shell, a flow guide assembly slidably arranged on the first heat exchange tube, and a plurality of second heat exchange tubes parallel to the first heat exchange tube; the second heat exchange tube passes through the flow guide assembly, and the two ends of the second heat exchange tube are respectively connected to the peripheral hole grooves provided on the tube sheet in a one-to-one correspondence;

[0010] The flow guide assembly includes two first baffles symmetrically arranged along the middle of the first heat exchange tube, two spring members fixedly connected to the first baffles at one end and fixedly connected to the tube sheet at the other end, and a plurality of second baffles equally spaced between the two first baffles; the first baffles and the second baffles are both provided with fan-shaped openings, and the fan-shaped openings of the baffles from left to right on the first heat exchange tube are staggered in sequence, and the first baffles and the second baffles are provided with tube holes for the second heat exchange tube to pass through;

[0011] The first heat exchange tube is a threaded tube, and the holes connecting the first baffle plate and the second baffle plate to the first heat exchange tube are threaded holes. The second heat exchange tube includes a multi-section pipe body, I-shaped grooves arranged at intervals on the surface of the pipe body, and a flow rate control component arranged between two adjacent pipe bodies and used to control the flow of the pipe body;

[0012] A baffle is provided in the middle of the head located on one side of the shell, and the baffle divides the head into an upper head cavity and a lower head cavity. A second inlet pipe is provided at the top of the upper head cavity, and a second outlet pipe is provided at the bottom of the lower head cavity; a first outlet pipe is provided at the top of the other side of the shell;

[0013] Description: The present invention can squeeze the baffle under the action of the fluid by arranging a guide component, and effectively adjust the position of the baffle inside the shell while the spring member contracts and resets, effectively avoiding the situation where the position of the baffle is immutable and causes the fluid to have unreachable areas, thereby affecting the heat exchange efficiency; at the same time, the position of the baffle itself can be adjusted to achieve a disruptive effect on the fluid, thereby slowing down the flow rate of the fluid, increasing the contact time between the cold and hot fluids, and thus improving the heat exchange efficiency; by arranging a flow rate control component inside the second heat exchange tube and an I-groove on the surface, the heat exchange efficiency is improved by reducing the flow rate of the fluid and increasing the contact area between the two.

[0014] Further, the flow rate control assembly includes a fixing member sleeved on one end of one of the pipe bodies, an adjusting member sleeved on the other end of the adjacent pipe body and threadedly connected to the fixing member, and a driving assembly meshed with the surface of the adjusting member;

[0015] The fixing member includes a fixing tube, a first circular plate disposed inside the fixing tube, and a first flow hole disposed on the first circular plate;

[0016] The regulating member comprises a regulating tube, a second circular plate arranged inside the regulating tube, a second flow hole arranged on the second circular plate, and a rotary spiral groove arranged on the surface of the regulating tube; the first circular plate is rotatably sealed with the second circular plate;

[0017] The driving assembly comprises a driving plate with one end movably arranged on the inner wall of the housing and in contact with the side surface of the regulating tube, a mounting block arranged on the other end of the driving plate, and a sliding block hingedly arranged on the mounting block; the sliding block can be slidably arranged inside the rotating spiral groove;

[0018] Description: The above structure can make full use of the external fluid to adjust the flow rate of the fluid inside the pipeline, which can reduce the cost of the device and improve the heat exchange efficiency;

[0019] The driving plate is pushed by the fluid flow, so that the driving plate drives the mounting block and the sliding block to move in the horizontal direction, so that the sliding block slides along the rotating spiral groove on the surface of the adjusting member, driving the adjusting member to rotate, thereby causing the second flow hole inside the adjusting member to rotate, and the flow area is adjusted by adjusting the relative position of the second flow hole and the first flow hole, thereby improving the heat exchange time of the fluid inside and outside the second heat exchange tube, thereby improving the heat exchange efficiency.

[0020] Furthermore, the first circulation hole and the second circulation hole have the same structure and correspond to each other one by one, and are used to control the docking connection or staggered closure of the second circulation hole and the first circulation hole by rotating the second circular plate;

[0021] Note: The above-mentioned flow hole structure can control the connectivity or closure of the fluid inside the second heat exchange tube. By adjusting the aperture of the first flow hole and the second flow hole, the flow rate of the fluid can be adjusted to enable sufficient heat exchange with the fluid outside the second heat exchange tube.

[0022] Furthermore, the outer wall of the fixed pipe and the inner wall of the adjusting pipe are provided with threads and rotate relatively; and the outer wall surface of the fixed pipe is provided with a sealing layer for sealing the threads of the fixed pipe and the adjusting pipe;

[0023] Note: The sealing layer can prevent the fluid from flowing out and causing secondary pollution.

[0024] Further, the first baffle plate and the second baffle plate have the same structure, both comprising a plate body and a first rack arranged on the plate body in an arc shape along a circumferential edge; support rings are arranged at intervals inside the shell, and second racks meshing with the first racks are arranged at intervals on the inner surface of the support rings;

[0025] Description: The baffle plate can achieve a small rotation under the impact of the fluid and the action of the threaded rod itself. The second rack on the support ring can limit the rotation range of the baffle plate. While ensuring that the baffle plate has a small rotational amplitude to cause turbulence to the fluid, it effectively avoids damage to other second heat exchange tubes that are not inside the plate body due to excessive amplitude.

[0026] Furthermore, the housing includes an upper housing and a lower housing detachably arranged with the upper housing;

[0027] Description: The detachable upper and lower shells can make the replacement and maintenance of heat exchange tubes and guide plates more convenient.

[0028] Furthermore, a flow disturbance component is provided inside the head located on the other side of the shell; the flow disturbance component comprises a rotating shaft which is perpendicular to the tube sheet and rotatably arranged at the center of the tube sheet, a plurality of disturbance blades which are circumferentially spaced on the rotating shaft, and a micro motor which is embedded in the tube sheet and used to provide rotational power to the rotating shaft;

[0029] Description: Through the setting of the spoiler component, the fluid can flow into the head far away from the first inlet pipe through the second inlet pipe and the first heat exchange pipe / the second heat exchange pipe in sequence. Under the action of the turbulent fluid, the fluid itself rotates through the rotating disturbance blades, and then the rotating shaft rotates in the opposite direction of the disturbance blades under the action of the micro motor, thereby reducing the flow rate of the fluid, thereby reducing the flow rate of the fluid that flows into the first heat exchange pipe / the second heat exchange pipe again, which is conducive to more complete contact with the fluid outside the pipe, and effectively improving the heat exchange efficiency.

[0030] Further, the aperture of the second heat exchange tube is larger than the aperture of the first heat exchange tube;

[0031] Note: By increasing the diameter of the peripheral heat exchange tube, the heat exchange area can be effectively increased, thereby improving the heat exchange efficiency.

[0032] The present invention also provides a method for using a shell and tube heat exchange device for enhancing heat exchange efficiency, comprising the following steps:

[0033] S1. Preparation

[0034] The hot fluid is introduced into the shell through the first inlet pipe at the bottom, and the cold fluid is introduced into the shell through the second inlet pipe at the top of the head cavity on one side of the head;

[0035] S2. Heat exchange

[0036] The cold fluid flows into the other side head along the first heat exchange tube and the second heat exchange tube inside the heat exchange assembly, and then the cold fluid inside the other side head passes through the first heat exchange tube and the second heat exchange tube again and flows into the lower head cavity, and finally is discharged along the second outlet pipe; the hot fluid flows along the flow cavity formed by the heat exchange assembly and the shell, and squeezes the baffles at both ends under the impact of the water flow. The baffles are squeezed and thus exert pressure on the spring parts, and then flow along the space formed by the misalignment of the first baffle and the second baffle, and then the spring parts are reset to adjust the position of the baffles, thereby adjusting the flow position of the fluid, and finally discharged along the first outlet pipe;

[0037] The flow rate control component is used to adjust and control the flow rate of the fluid inside the second heat exchange tube, thereby increasing the contact time between the cold and hot fluids and allowing the cold and hot fluids to fully exchange heat.

[0038] The beneficial effects of the present invention are:

[0039] (1) The present invention can squeeze the baffle under the action of the fluid by setting a guide component, and effectively adjust the position of the baffle inside the shell while the spring part contracts and resets, effectively avoiding the situation that the position of the baffle is immutable, causing the fluid to have unreachable areas, thereby affecting the heat exchange efficiency; at the same time, the position of the baffle itself can be adjusted to achieve a flow disturbance effect on the fluid, thereby slowing down the flow rate of the fluid, increasing the contact time between the cold and hot fluids, and thus improving the heat exchange efficiency; the flow rate control component set inside the second heat exchange tube and the I-groove on the surface can reduce the flow rate of the fluid and increase the contact area between the two to achieve an improvement in the heat exchange efficiency.

[0040] (2) The flow rate control component of the present invention can make full use of the external fluid to adjust the flow rate of the fluid inside the pipeline, thereby reducing the cost of the device and improving the heat exchange efficiency. The driving plate is pushed by the fluid flow, so that the driving plate drives the mounting block and the sliding block to move in the horizontal direction, thereby causing the sliding block to slide along the rotating spiral groove on the surface of the adjusting member, driving the adjusting member to rotate, thereby causing the second flow hole inside the adjusting member to rotate. The relative position of the second flow hole and the first flow hole is adjusted to adjust the flow area, thereby improving the heat exchange time of the fluid inside and outside the pipe, thereby improving the heat exchange efficiency.

[0041] (3) The present invention can make the fluid flow through the second inlet pipe, the first heat exchange pipe / the second heat exchange pipe in sequence into the head far away from the first inlet pipe through the setting of the flow disturbance component. Under the action of the turbulent fluid, the fluid itself rotates through the rotating disturbance blades, and then the rotating shaft rotates in the opposite direction of the rotation of the disturbance blades under the action of the micro motor, so as to reduce the flow rate of the fluid, thereby reducing the flow rate of the fluid flowing into the first heat exchange pipe / the second heat exchange pipe again, which is conducive to more complete contact with the fluid outside the pipe, and effectively improves the heat exchange efficiency; the upper and lower shells that are detachable can make the replacement and maintenance of the heat exchange pipes and guide plates more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 is a schematic diagram of the external structure of embodiment 1 of the present invention;

[0043] Figure 2 is a schematic diagram of the internal structure of Embodiment 1 of the present invention;

[0044] Figure 3 is a schematic structural diagram of a flow guide assembly according to Embodiment 1 of the present invention;

[0045] Figure 4 This is a schematic diagram of the structure of the second heat exchange tube and the head in Example 1 of the present invention;

[0046] Figure 5 It is a partial structural schematic diagram of a flow rate control assembly in Example 2 of the present invention;

[0047] Figure 6 is a schematic structural diagram of a fixing member and an adjusting member according to Embodiment 2 of the present invention;

[0048] Figure 7 Schematic diagram of the connection relationship between the adjusting member and the driving member in Embodiment 2 of the present invention;

[0049] Figure 8 A schematic structural diagram of a spoiler assembly according to embodiment 3 of the present invention.

[0050] Among them, 1-heat exchange shell, 11-shell, 111-upper shell, 112-lower shell, 12-support, 13-first inlet pipe, 14-first outlet pipe, 15-support ring, 151-second rack, 2-heat exchange component, 21-first heat exchange tube, 22-flow guide component, 221-first baffle, 2211-plate body, 2212-first rack, 222-spring, 23-second heat exchange tube, 231-pipe body, 232-I-shaped groove, 233-flow rate control component, 234-fixing part, 2341-fixing tube, 2342-first A circular plate, 2343-a first flow hole, 235-an adjusting member, 2351-an adjusting tube, 2352-a second circular plate, 2353-a second flow hole, 2354-a rotating spiral groove, 236-a driving assembly, 2361-a driving plate, 2362-a mounting block, 2363-a sliding block, 3-a tube sheet, 31-a central hole groove, 32-a peripheral hole groove, 4-a head, 41-a baffle, 42-an upper head cavity, 43-a lower head cavity, 44-a second inlet pipe, 45-a second outlet pipe, 46-a flow disturbance assembly, 461-a rotating shaft, 462-a disturbance blade. DETAILED DESCRIPTION

[0051] The present invention is further described in detail below in conjunction with specific implementation methods to better reflect the advantages of the present invention.

[0052] Example 1

[0053] like Figure 1 A shell and tube heat exchange device for enhancing heat exchange efficiency is shown, comprising a heat exchange shell 1, a heat exchange component 2 arranged inside the heat exchange shell 1, a tube sheet 3 rotatably connected to the end of the heat exchange shell 1 and communicating with the heat exchange component 2, and headers 4 arranged on both sides of the tube sheet 3;

[0054] The heat exchange shell 1 comprises a shell 11, a support 12 arranged at the bottom of the shell 11, and a first inlet pipe 13 arranged at the bottom of one side of the shell 11;

[0055] like Figure 2 , Figure 3 As shown, the heat exchange assembly 2 includes a first heat exchange tube 21 connected to the central hole groove 31 of the tube sheet 3 and arranged along the axis of the shell 11, a flow guide assembly 22 slidably arranged on the first heat exchange tube 21, and six second heat exchange tubes 23 parallel to the first heat exchange tube 21; the second heat exchange tube 23 passes through the flow guide assembly 22, and the two ends of the second heat exchange tube 23 are respectively connected to the peripheral hole grooves 32 provided on the tube sheet 3 in a one-to-one correspondence;

[0056] The flow guide assembly 22 includes two first baffles 221 symmetrically arranged along the middle of the first heat exchange tube 21, two spring members 222 fixedly connected to the first baffles 221 at one end and fixedly connected to the tube sheet 3 at the other end, and two second baffles equidistantly arranged between the two first baffles 221; the first baffles 221 and the second baffles are both provided with fan-shaped openings, and the fan-shaped openings of the baffles from left to right on the first heat exchange tube 21 are staggered in sequence, and the first baffles and the second baffles are provided with tube holes for the second heat exchange tube 23 to pass through;

[0057] like Figure 3 , Figure 4 As shown, the first heat exchange tube 21 is a threaded tube, and the holes connecting the first baffle 221 and the second baffle with the first heat exchange tube 21 are threaded holes. The second heat exchange tube 23 includes three sections of pipe bodies 231, I-shaped grooves 232 arranged at intervals on the surface of the pipe bodies 231, and a flow rate control component 233 arranged between two adjacent pipe bodies 231 for controlling the flow of the pipe bodies 231;

[0058] Among them, the flow rate control component 233 adopts a commercially available flow regulating solenoid valve;

[0059] A baffle 41 is provided in the middle of the head 4 located on one side of the shell 11, and the baffle 41 divides the head 4 into an upper head cavity 42 and a lower head cavity 43. A second inlet pipe 44 is provided at the top of the upper head cavity 42, and a second outlet pipe 45 is provided at the bottom of the lower head cavity 43; a first outlet pipe 14 is provided at the top of the other side of the shell 11;

[0060] like Figure 3 As shown, the first baffle and the second baffle have the same structure, both comprising a plate body 2211 and a first rack 2212 arranged on the plate body 2211 in an arc shape along the circumferential edge; support rings 15 are arranged at intervals inside the housing 11, and second racks 151 meshing with the first rack 2212 are arranged at intervals on the inner surface of the support ring 15;

[0061] The housing 11 includes an upper housing 111 and a lower housing 112 detachably disposed from the upper housing 111;

[0062] The aperture of the second heat exchange tube 23 is larger than that of the first heat exchange tube 21; the aperture of the second heat exchange tube 23 is 15 mm, and the aperture of the first heat exchange tube 21 is 9 mm;

[0063] The method for using the shell and tube heat exchange device for enhancing heat exchange efficiency comprises the following steps:

[0064] S1. Preparation

[0065] The hot fluid is introduced through the first inlet pipe 13 at the bottom of the shell 11, and the cold fluid is introduced through the second inlet pipe 44 at the top of the head cavity 42 on one side of the head 4;

[0066] S2. Heat exchange

[0067] The cold fluid flows into the other side head 4 along the first heat exchange tube 21 and the second heat exchange tube 23 inside the heat exchange component 2, and then the cold fluid inside the other side head 4 flows into the lower head cavity 43 through the first heat exchange tube 21 and the second heat exchange tube 23 again, and finally is discharged along the second outlet pipe 45; the hot fluid flows along the flow cavity formed by the heat exchange component 2 and the shell 11, and squeezes the baffles 221 at both ends under the impact of the water flow, and the baffles 221 are squeezed to exert pressure on the spring member 222, and then flows along the space formed by the misalignment of the first baffle and the second baffle, and then the spring member 222 is reset to adjust the position of the baffle 221, thereby adjusting the flow position of the fluid, and finally is discharged along the first outlet pipe 14;

[0068] By adjusting and controlling the flow rate of the fluid inside the second heat exchange tube 23 through the flow rate control component 233, the contact time between the cold and hot fluids can be effectively increased;

[0069] At the same time, the structure of the I-shaped grooves 232 arranged at intervals on the surface of the second heat exchange tube 23 can further enable the fluids inside and outside the tube to fully contact each other, so that the cold and hot fluids can fully exchange heat.

[0070] Example 2

[0071] Different from Example 1, Figure 5 As shown, the flow rate control assembly 233 includes a fixing member 234 sleeved on one end of one of the pipe bodies 231, an adjusting member 235 sleeved on the other end of the adjacent pipe body 231 and threadedly connected to the fixing member 234, and a driving assembly 236 meshed with the surface of the adjusting member 235;

[0072] like Figure 6 As shown, the fixing member 234 includes a fixing tube 2341, a first circular plate 2342 disposed inside the fixing tube 2341, and a first flow hole 2343 disposed on the first circular plate 2342;

[0073] The regulating member 235 includes a regulating tube 2351, a second circular plate 2352 disposed inside the regulating tube 2351, a second flow hole 2353 disposed on the second circular plate 2352, and a rotary spiral groove 2354 disposed on the surface of the regulating tube 2351; the first circular plate 2342 is rotatably sealed with the second circular plate 2352;

[0074] like Figure 7As shown, the driving assembly 236 includes a driving plate 2361 with one end movably disposed on the inner wall of the housing 11 and in contact with the side of the regulating tube 2351, a mounting block 2362 disposed at the other end of the driving plate 2361, and a sliding block 2363 hingedly disposed on the mounting block 2362; the sliding block 2363 is slidably connected to the rotating spiral groove 2354;

[0075] The first circulation hole 2343 and the second circulation hole 2353 have the same structure and correspond to each other one by one, and are used to control the docking connection or staggered closure of the second circulation hole 2353 and the first circulation hole 2343 through the rotation of the second circular plate 2352;

[0076] The outer wall of the fixed tube 2341 and the inner wall of the adjusting tube 2351 are provided with threads and rotate relatively; and the outer wall surface of the fixed tube 2341 is provided with a sealing layer for sealing the threads of the fixed tube 2341 and the adjusting tube 2351;

[0077] Among them, the sealing layer adopts polytetrafluoroethylene tape;

[0078] The working principle of this embodiment is basically the same as that of Embodiment 1, except that:

[0079] The driving plate 2361 is pushed by the fluid flow, so that the driving plate 2361 drives the mounting block 2362 and the sliding block 2363 to move in the horizontal direction, so that the sliding block 2363 slides along the rotary spiral groove 2354 on the surface of the adjusting member 235, driving the adjusting member 235 to rotate, thereby causing the second flow hole 2353 inside the adjusting member 235 to rotate, and the flow area is adjusted by adjusting the relative position of the second flow hole 2353 and the first flow hole 2343, thereby effectively improving the heat exchange time of the fluid inside and outside the tube, and further improving the heat exchange efficiency;

[0080] This embodiment can adjust the flow rate of the fluid inside the pipeline by utilizing the action of the external fluid, thereby reducing the possibility of leakage caused by water in the use of the solenoid valve and reducing the high cost of the flow valve, while achieving the purpose of improving the heat exchange efficiency.

[0081] Example 3

[0082] Different from Example 1, Figure 8 As shown, a spoiler assembly 46 is provided inside the head 4 located on the other side of the shell 11;

[0083] The spoiler assembly 46 includes a rotating shaft 461 which is perpendicular to the tube sheet 3 and rotatably arranged at the center of the tube sheet 3, three disturbance blades 462 which are circumferentially spaced and arranged on the rotating shaft 461, and a micro motor which is embedded in the tube sheet 3 and used to provide rotational power to the rotating shaft 461;

[0084] Wherein, the micro motor adopts a commercially available micro motor;

[0085] The working principle of this embodiment is basically the same as that of Embodiment 1, except that:

[0086] The setting of the flow disturbance component 46 enables the fluid to flow into the interior of the head 4 away from the first inlet pipe 13 through the second inlet pipe 44, the first heat exchange pipe 21 / the second heat exchange pipe 23 in sequence. Under the action of the turbulent fluid, the fluid itself rotates through the rotating disturbance blade 462, and then under the action of the micro motor, the rotating shaft 461 rotates in the opposite direction of the rotation of the disturbance blade 462, thereby reducing the flow rate of the fluid, thereby reducing the flow rate of the fluid that flows into the first heat exchange pipe 21 / the second heat exchange pipe 23 again, which is conducive to more sufficient contact with the fluid outside the pipe, and effectively improving the heat exchange efficiency;

[0087] The above structure can further adjust the flow rate of the fluid through the spoiler component 46, thereby increasing the heat exchange efficiency of the heat exchange equipment.

Claims

1. A shell and tube heat exchange device for enhancing heat exchange efficiency, characterized in that: It comprises a heat exchange shell (1), a heat exchange component (2) arranged inside the heat exchange shell (1), a tube sheet (3) rotatably connected to the end of the heat exchange shell (1) and communicating with the heat exchange component (2), and a head (4) arranged on both sides of the tube sheet (3); The heat exchange shell (1) comprises a shell (11), a support (12) arranged at the bottom of the shell (11), and a first inlet pipe (13) arranged at the bottom of one side of the shell (11); The heat exchange assembly (2) comprises a first heat exchange tube (21) connected to a central hole groove (31) of the tube sheet (3) and arranged along the axis of the shell (11), a flow guide assembly (22) slidably arranged on the first heat exchange tube (21), and a plurality of second heat exchange tubes (23) parallel to the first heat exchange tube (21); the second heat exchange tube (23) passes through the flow guide assembly (22), and both ends of the second heat exchange tube (23) are connected to the peripheral hole grooves (32) provided on the tube sheet (3) in a one-to-one correspondence. The flow guide assembly (22) comprises two first baffles (221) symmetrically arranged along the middle of the first heat exchange tube (21), two spring members (222) fixedly connected to the first baffles (221) at one end and fixedly connected to the tube sheet (3) at the other end, and a plurality of second baffles arranged at equal intervals between the two first baffles (221); the first baffles (221) and the second baffles are both provided with fan-shaped openings, and the fan-shaped openings of the baffles on the first heat exchange tube (21) from left to right are staggered in sequence, and the first baffles and the second baffles are provided with tube holes for the second heat exchange tube (23) to pass through; The first heat exchange tube (21) is a threaded tube, and the holes connecting the first baffle (221) and the second baffle to the first heat exchange tube (21) are threaded holes; the second heat exchange tube (23) comprises a multi-section tube body (231), I-shaped grooves (232) arranged at intervals on the surface of the tube body (231), and a flow rate control component (233) arranged between two adjacent tube bodies (231) and used for controlling the flow of the tube body (231); A baffle (41) is provided in the middle of the head (4) located on one side of the shell (11), and the baffle (41) divides the head (4) into an upper head cavity (42) and a lower head cavity (43); a second inlet pipe (44) is provided at the top of the upper head cavity (42), and a second outlet pipe (45) is provided at the bottom of the lower head cavity (43); and a first outlet pipe (14) is provided at the top of the other side of the shell (11).

2. A shell and tube heat exchange device for enhancing heat exchange efficiency according to claim 1, characterized in that: The flow rate control assembly (233) comprises a fixing member (234) sleeved on one end of one of the pipe bodies (231), an adjusting member (235) sleeved on the other end of an adjacent pipe body (231) and threadedly connected to the fixing member (234), and a driving assembly (236) meshing with a surface of the adjusting member (235); The fixing member (234) comprises a fixing tube (2341), a first circular plate (2342) arranged inside the fixing tube (2341), and a first flow hole (2343) arranged on the first circular plate (2342); The regulating member (235) comprises a regulating tube (2351), a second circular plate (2352) arranged inside the regulating tube (2351), a second flow hole (2353) arranged on the second circular plate (2352), and a rotary spiral groove (2354) arranged on the surface of the regulating tube (2351); the first circular plate (2342) is rotatably sealed with the second circular plate (2352); The driving assembly (236) comprises a driving plate (2361) having one end movably disposed on the inner wall of the housing (11) and in contact with the side surface of the regulating tube (2351), a mounting block (2362) disposed on the other end of the driving plate (2361), and a sliding block (2363) hingedly disposed on the mounting block (2362); the sliding block (2363) is slidably connected to the rotating spiral groove (2354).

3. A shell and tube heat exchange device for enhancing heat exchange efficiency according to claim 2, characterized in that: The first circulation hole (2343) and the second circulation hole (2353) have the same structure and correspond one to one, and are used to control the docking connection or staggered closure of the second circulation hole (2353) and the first circulation hole (2343) by rotating the second circular plate (2352).

4. A shell and tube heat exchange device for enhancing heat exchange efficiency according to claim 2, characterized in that: The outer wall of the fixed tube (2341) and the inner wall of the adjusting tube (2351) are provided with threads and rotate relative to each other; and a sealing layer for sealing the threads of the fixed tube (2341) and the adjusting tube (2351) is provided on the outer wall surface of the fixed tube (2341).

5. The shell and tube heat exchange device for enhancing heat exchange efficiency according to claim 1, characterized in that: The first baffle plate (221) and the second baffle plate have the same structure, both comprising a plate body (2211) and a first rack (2212) arranged on the plate body (2211) in an arc shape along a circumferential edge; support rings (15) are arranged at intervals inside the shell (11), and second racks (151) meshing with the first rack (2212) are arranged at intervals on the inner surface of the support ring (15).

6. The shell and tube heat exchange device for enhancing heat exchange efficiency according to claim 1, characterized in that: The housing (11) comprises an upper housing (111) and a lower housing (112) detachably arranged from the upper housing (111).

7. The shell and tube heat exchange device for enhancing heat exchange efficiency according to claim 1, characterized in that: A flow disturbance component (46) is provided inside the sealing head (4) located on the other side of the shell (11); the flow disturbance component (46) comprises a rotating shaft (461) perpendicular to the tube sheet (3) and rotatably arranged at the center of the tube sheet (3), a plurality of disturbance blades (462) circumferentially spaced on the rotating shaft (461), and a micro motor embedded in the tube sheet (3) for providing rotational power to the rotating shaft (461).

8. The shell and tube heat exchange device for enhancing heat exchange efficiency according to claim 1, characterized in that: The aperture of the second heat exchange tube (23) is larger than the aperture of the first heat exchange tube (21).

9. A method for using a shell and tube heat exchange device for enhancing heat exchange efficiency according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1. Preparation Passing hot fluid through a first inlet pipe (13) at the bottom of the shell (11), and passing cold fluid through a second inlet pipe (44) at the top of the upper head cavity (42) of a side head (4); S2. Heat exchange The cold fluid flows into the other side end cap (4) along the first heat exchange tube (21) and the second heat exchange tube (23) inside the heat exchange component (2), and then the cold fluid inside the other side end cap (4) flows into the lower end cap cavity (43) through the first heat exchange tube (21) and the second heat exchange tube (23) again, and finally is discharged along the second outlet pipe (45); the hot fluid flows along the flow cavity formed by the heat exchange component (2) and the shell (11), and squeezes the baffles (221) at both ends under the impact of the water flow, and the baffles (221) are squeezed to exert pressure on the spring member (222), and then flows along the space formed by the misalignment of the first baffle and the second baffle, and then the spring member (222) is reset to adjust the position of the baffle (221), thereby adjusting the flow position of the fluid, and finally is discharged along the first outlet pipe (14); The flow rate of the fluid inside the second heat exchange tube (23) is regulated and controlled by the flow rate control component (233), thereby increasing the contact time between the cold and hot fluids and allowing the cold and hot fluids to fully exchange heat.

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