A high-efficiency energy-saving corrugated tube heat exchanger and heat exchange method

Abstract

The present invention discloses a high-efficiency and energy-saving corrugated tube heat exchanger and a heat exchange method, and relates to the technical field of heat exchange equipment. The high-efficiency and energy-saving corrugated tube heat exchanger comprises a shell, a heat exchange tube, an inner spoiler assembly and an outer spoiler assembly; the heat exchange tube comprises a plurality of corrugated tubes and a plurality of connecting tubes; the inner spoiler assembly comprises a first impeller and a second impeller which are coaxially arranged and rotate in opposite directions; the first impeller and the second impeller rotate in opposite directions under the impact of a first heat exchange fluid and disrupt the laminar flow of the first heat exchange fluid; the outer spoiler assembly comprises a partition, and a flow gap and a clearance gap are provided between the partition and the inner wall of the shell; the height of the flow gap is greater than the height of the clearance gap. A counterweight block for disturbing the second heat exchange fluid at the left and right sides of the clearance gap is provided at the outer edge position of any blade of the first impeller. The inner spoiler assembly can enhance the turbulent disorder of the first heat exchange fluid, and the outer spoiler assembly can enhance the turbulent disorder of the second heat exchange fluid, thereby increasing the heat exchange efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of heat exchange equipment, and in particular to a high-efficiency energy-saving corrugated tube heat exchanger and a heat exchange method. Background Art

[0002] The tubular heat exchanger includes a heat exchange tube and a first heat exchange fluid and a second heat exchange fluid arranged inside and outside the heat exchange tube. The first heat exchange fluid and the second heat exchange fluid have a temperature difference to achieve heat exchange. The first heat exchange fluid is usually steam or hot water, and the second heat exchange fluid is usually cold water.

[0003] The heat exchange tubes in conventional technology usually adopt light tubes, and the first heat exchange fluid flows in laminar flow in the light tubes. Since the molecules at the outer edge of the first heat exchange fluid (such as gas molecules, water molecules, etc.) have exchanged heat with the heat exchange tube and the second heat exchange fluid and are in a low-temperature state, the molecules at the center (such as gas molecules, water molecules, etc.) have not exchanged heat with the heat exchange tube and the second heat exchange fluid and are in a high-temperature state, that is, the temperature difference of the heat exchange fluid near the inner and outer wall of the heat exchange tube is reduced, resulting in uneven heat exchange, and ultimately reducing the overall heat exchange efficiency. Summary of the invention

[0004] In order to overcome the problem in the above background technology that "the heat exchange efficiency of the traditional tubular heat exchanger is reduced due to the laminar flow phenomenon", the present invention provides a high-efficiency and energy-saving corrugated tube heat exchanger and a heat exchange method.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] A high-efficiency and energy-saving corrugated tube heat exchanger comprises a shell, a heat exchange tube, an inner spoiler assembly and an outer spoiler assembly; a first cavity is provided in the middle of the inner cavity of the shell, and the heat exchange tube is horizontally installed in the first cavity; a first heat exchange fluid and a second heat exchange fluid are provided on the inner and outer sides of the heat exchange tube respectively; the heat exchange tube comprises a plurality of corrugated tubes and a plurality of connecting tubes, and the corrugated tubes and the connecting tubes are alternately connected in series; the inner spoiler assembly comprises a first impeller and a second impeller which are coaxially arranged and have opposite rotation directions; the first impeller and the second impeller rotate in opposite directions under the impact of the first heat exchange fluid and disturb the laminar flow of the first heat exchange fluid; the inner spoiler assembly is installed in the heat exchange tube; the outer spoiler assembly comprises a plurality of baffles sleeved on the outer wall of the heat exchange tube, and the baffles are arranged in an N shape in the first cavity; a flow gap and a clearance gap are provided between the baffle and the inner wall of the shell; a counterweight block for disturbing the second heat exchange fluid at the left and right sides of the clearance gap is provided at the outer edge of any blade of the first impeller

[0007] As a further optimization solution of the present invention, the diameter of the first impeller is 1.3 to 2.2 times the diameter of the second impeller.

[0008] As a further optimization solution of the present invention, the inner spoiler assembly further includes a mounting frame, and the first impeller and the second impeller are rotatably mounted on both sides of the mounting frame via a rotating shaft.

[0009] As a further optimization scheme of the present invention, the mounting frame is installed on the inner wall of the connecting tube; the connecting tube includes a first arc plate and a second arc plate that are interlocked with each other, the inner wall of the first arc plate is provided with a first slot for engaging the lower edge of the mounting frame, and the inner wall of the second arc plate is provided with a second slot for engaging the upper edge of the mounting frame.

[0010] As a further optimization solution of the present invention, the first arc plate and the second arc plate are sealed and connected at the buckling positions.

[0011] As a further optimization scheme of the present invention, a first support plate and a third support plate are respectively installed upright on the left and right sides of the shell; the heat exchange tube also includes a plurality of elastic hoses that can bend longitudinally and rebound, and the corrugated tube is connected to the first support plate through the elastic hose, and the corrugated tube is connected to the third support plate through the elastic hose.

[0012] As a further optimization solution of the present invention, the cross-section of the elastic hose is elliptical, and the transverse diameter of the elastic hose is 1.5 to 2.5 times the longitudinal diameter.

[0013] As a further optimization scheme of the present invention, a second support plate vertically arranged with respect to the first support plate is provided in the shell, and a second cavity and a third cavity are respectively provided on the upper and lower sides of the second support plate; the heat exchange tubes are provided in two groups and arranged one above and one below, the second cavity is communicated with the heat exchange tube at the upper position, and the third cavity is communicated with the heat exchange tube arranged below;

[0014] An isolation shell is provided on the side wall of the third support plate. A fourth cavity and a fifth cavity are respectively provided on the inner and outer sides of the isolation shell. The heat exchange tube is connected to the fourth cavity. An insulation layer is provided in the fifth cavity.

[0015] As a further optimization solution of the present invention, a stirring rod is provided at one end of the partition side wall close to the clearance gap.

[0016] A highly efficient and energy-saving heat exchange method, which uses a highly efficient and energy-saving corrugated tube heat exchanger for heat exchange, includes the following contents: injecting the first heat exchange fluid into the heat exchange tube, so that the first heat exchange fluid contacts the inner wall of the heat exchange tube in the form of turbulence under the disturbance of the corrugated tube and the internal spoiler component; the first impeller and the second impeller rotate in opposite directions under the impact of the first heat exchange fluid and disrupt the laminar flow of the first heat exchange fluid; the rotation of the counterweight causes the vibration of the heat exchange tube and the partition, on the one hand, increasing the fluidity of the second heat exchange fluid at the surface position of the heat exchange tube and the surface position of the partition, and on the other hand, continuously changing the height of the clearance gap and causing the vibration of the stirring rod to increase the fluidity of the second heat exchange fluid in the hysteresis area.

[0017] In summary, the present invention is beneficial in that:

[0018] (1) The corrugated tube has a concave and convex side wall and inner cavity diameters of different sizes. When the first heat exchange fluid flows through the corrugated tube, the laminar flow is destroyed and turbulent flow is formed, so that the high-temperature molecules at the center of the first heat exchange fluid can contact the heat exchange tube and exchange heat with it, thereby improving the heat exchange efficiency.

[0019] (2) The first impeller and the second impeller are driven by the kinetic energy of the first heat exchange fluid, without the need for an external power source, thereby reducing energy consumption.

[0020] (3) The dual-impeller reverse stirring form provided by the present invention can provide turbulence with higher disorder, thereby having a better mixing effect to improve the heat exchange efficiency.

[0021] (4) When the counterweight rotates, it can drive the partition to vibrate longitudinally. When the partition is close to the shell, the cross-section and volume of the clearance gap decrease, squeezing the second heat exchange fluid out from both sides of the clearance gap; when the partition is away from the shell, the cross-section and volume of the clearance gap increase, sucking the second heat exchange fluid into the clearance gap from both sides; affected by the mainstream, the second heat exchange fluid in the original hysteresis area can flow into the mainstream through the clearance gap, that is, the low-temperature molecules in the hysteresis area flow into the mainstream, which can reduce the temperature of the mainstream, that is, the temperature difference between the first heat exchange fluid and the second heat exchange fluid increases, the heat exchange efficiency is improved, and the appearance of heat exchange blind spots is avoided.

[0022] (5) The vibration of the partition drives the stirring rod to vibrate, thereby stirring the second heat exchange fluid in the hysteresis area, so that the second heat exchange fluid in the hysteresis area can diffuse to the mainstream on the right or accelerate to flow to the mainstream on the left, thereby avoiding the occurrence of a heat exchange blind area and improving the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present application is further described below with reference to the accompanying drawings:

[0024] Figure 1It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the connection structure between the inner spoiler assembly and the heat exchange tube;

[0026] Figure 3 This is an exploded schematic diagram of the connecting pipe structure;

[0027] Figure 4 It is a schematic diagram of the side structure of the inner spoiler component;

[0028] Figure 5 The figure is a schematic diagram of the installation position and connection structure of the partition;

[0029] Figure 6 It is the schematic diagram of the position and structure of the flow gap and the give-way gap;

[0030] Figure 7 forming a location diagram for the hysteresis region;

[0031] Figure 8 is a flow diagram of the main flow and the branch flow of the second heat exchange fluid;

[0032] Fig. 9 Schematic diagram of the stirring rod position and structure;

[0033] Fig.10 Schematic diagram of the position and structure of the second cavity and the third cavity;

[0034] Fig.11 Schematic diagram of the position and structure of the fourth cavity and the fifth cavity;

[0035] Fig.12 Schematic diagram of the cross section of the elastic hose.

[0036] Description of reference numerals:

[0037] In the figure,

[0038] 1. Shell; 101. First cavity; 102. Second cavity; 103. Third cavity; 104. Fourth cavity; 105. Fifth cavity; 11. First support plate; 12. Second support plate; 13. Third support plate; 14. Isolation shell;

[0039] 2. heat exchange tube; 21. corrugated tube; 22. connecting tube; 221. first arc plate; 2211. first slot; 222. second arc plate; 2221. second slot; 23. elastic hose;

[0040] 3. Internal spoiler assembly; 31. First impeller; 311. Counterweight; 32. Second impeller; 33. Mounting frame;

[0041] 4. External spoiler assembly; 42. baffle; 401. flow gap; 402. clearance gap; 403. hysteresis area; 42. stirring rod;

[0042] 5. The first tube body;

[0043] 6. Second tube body;

[0044] 7. The third tube body;

[0045] 8. The fourth tube body;

[0046] A. mainstream; B. tributary. DETAILED DESCRIPTION

[0047] Based on the above structural features of the present application, the implementation methods of the present application are further described:

[0048] Reference Figure 1-2 , Figure 5 This embodiment provides a high-efficiency and energy-saving corrugated tube heat exchanger, including a shell 1, a heat exchange tube 2, an inner spoiler assembly 3 and an outer spoiler assembly 4. A first cavity 101 is provided in the middle of the inner cavity of the shell 1, and the heat exchange tube 2 is horizontally installed in the first cavity 101; a first heat exchange fluid and a second heat exchange fluid are provided on the inner and outer sides of the heat exchange tube 2, respectively. The shell 1 is used to play a structural supporting role for the heat exchange tube 2, the inner spoiler assembly 3 and the outer spoiler assembly 4. The inner spoiler assembly 3 can enhance the turbulent chaos of the first heat exchange fluid, and the outer spoiler assembly 4 can enhance the turbulent chaos of the second heat exchange fluid, thereby increasing the heat exchange efficiency and avoiding the problem of uneven heat transfer.

[0049] Reference Figure 1 and Figure 2 The heat exchange tube 2 includes a plurality of corrugated tubes 21 and a plurality of connecting tubes 22. The corrugated tubes 21 and the connecting tubes 22 are alternately connected in series and fixedly connected to each other (for example, fixedly connected by threaded sealing or fixedly connected by welding sealing).

[0050] Reference Figure 1 and Figure 2 The corrugated tube 21 has a concave-convex side wall and inner cavity diameters of different sizes. When the first heat exchange fluid flows through the corrugated tube 21, the laminar flow is destroyed and turbulence is formed, which reduces the radial temperature difference of the first heat exchange fluid and enables the high-temperature molecules at the center of the first heat exchange fluid to contact the heat exchange tube 2 and exchange heat with it, thereby improving the heat exchange efficiency.

[0051] Reference Figure 2 to Figure 4The inner turbulence assembly 3 includes a first impeller 31 and a second impeller 32 which are coaxially arranged and rotate in opposite directions; the first impeller 31 and the second impeller 32 can rotate freely. The first impeller 31 and the second impeller 32 rotate in opposite directions under the impact of the first heat exchange fluid and disrupt the laminar flow of the first heat exchange fluid; the inner turbulence assembly 3 is installed in the heat exchange tube 2. Compared with the traditional electric drive single impeller stirring form, the present invention uses the kinetic energy of the first heat exchange fluid itself to drive the impeller to rotate, which can avoid the introduction of additional electric energy, thereby reducing energy consumption. The double impeller can improve the utilization rate of the kinetic energy of the first heat exchange fluid, that is, the first impeller 31 and the second impeller 32 can be driven to rotate relative to each other by the first heat exchange fluid with a slower flow rate. Compared with the stirring form of a single impeller and the stirring form of a double impeller with the same rotation direction, the stirring form of a double impeller in the opposite direction provided by the present invention can provide a turbulent flow with a higher degree of disorder, thereby having a better mixing effect, so as to improve the heat exchange efficiency.

[0052] Reference Figure 2 , the diameter of the first impeller 31 is 1.3 to 2.2 times the diameter of the second impeller 32. The diameter of the first impeller 31 is adapted to the diameter of the installation pipe at the position where it is located. For example, if the diameter of the installation pipe at this position is 4.6 cm, the diameter of the first impeller 31 is 4.4 cm, and the diameter of the second impeller 32 is 2 cm. The first impeller 31 and the second impeller 32 are coaxially arranged, thereby improving the disturbance effect on the high-temperature molecules in the middle position of the first heat exchange fluid.

[0053] Reference Figure 2 to Figure 4 The inner spoiler assembly 3 also includes a mounting frame 33, and the first impeller 31 and the second impeller 32 are respectively rotatably mounted on both sides of the mounting frame 33 through a rotating shaft. The mounting frame 33 is mounted on the inner wall of the connecting pipe 22. The connecting pipe 22 includes a first arc plate 221 and a second arc plate 222 that are interlocked with each other. The inner wall of the first arc plate 221 is provided with a first card slot 2211 for engaging the lower edge of the mounting frame 33, and the inner wall of the second arc plate 222 is provided with a second card slot 2221 for engaging the upper edge of the mounting frame 33. The outer edge of the mounting frame 33 is adapted to the inner edge of the first arc plate 221 and the second arc plate 222, so as to achieve stable installation of the inner spoiler assembly 3. The outer edge of the mounting frame 33 is fixed in the first card slot 2211 and the second card slot 2221.

[0054] Reference Figure 3 The first arc plate 221 and the second arc plate 222 are sealed at the buckled positions (for example, sealed by a sealing ring, sealed by welding, sealed by a coating layer, etc.).

[0055] Reference Figure 5The external spoiler assembly 4 includes a plurality of baffles 41 sleeved on the outer wall of the heat exchange tube 2, and the baffles 41 are vertically arranged. The baffles 41 are provided with plug holes adapted to the corrugated tube 21 or the connecting tube 22, and the corrugated tube 21 or the connecting tube 22 is vertically plugged into the plug holes and fixedly connected to the baffles 41 (for example, fixedly connected by bolts or fixedly connected by welding). The baffles 41 are arranged in an N shape in the first cavity 101, so that the mainstream A of the second heat exchange fluid is in a horizontal S shape. Figure 5 In the perspective shown, with the left side as the starting end, the partitions 41 at odd positions are close to the top of the first cavity 101 , and the partitions 41 at even positions are close to the bottom of the first cavity 101 .

[0056] Reference Figure 5 and Figure 6 A flow gap 401 and a clearance gap 402 are provided between the partition plate 41 and the inner wall of the housing 1; the height of the flow gap 401 is greater than the height of the clearance gap 402. Figure 5 In the perspective shown, with the left side as the starting end, the gap between the top end of the partition 41 at the odd position and the outer shell 1 is the clearance gap 402, and the gap between the bottom end and the outer shell 1 is the flow gap 401; the gap between the top end of the partition 41 at the even position and the outer shell 1 is the flow gap 401, and the gap between the bottom end and the outer shell 1 is the clearance gap 402.

[0057] Reference Figures 5 to 8 The flow gap 401 is used to provide a space for the main flow A of the second heat exchange fluid; the clearance gap 402 is used to provide a space for the branch flow B of the second heat exchange fluid. Both the flow gap 401 and the clearance gap 402 are used to provide a space for the vibration of the partition 41 to prevent the partition 41 from hitting the inner wall of the shell 1, or to prevent the partition 41 from being rigidly connected to the shell 1, resulting in a reduction in the vibration amplitude. Figure 5 , the mainstream A of the second heat exchange fluid is in a horizontal S shape.

[0058] Reference Figure 4 A counterweight block 311 is provided at the outer edge of any blade of the first impeller 31 for disturbing the second heat exchange fluid at the left and right sides of the clearance gap 402.

[0059] Reference Figure 7In the conventional technology, the top or bottom end of the partition 41 is fixedly sealed and connected to the shell 1, resulting in a hysteresis area 403 at the root of the vertical connection position between the partition 41 and the shell 1 (the hysteresis area 403 is close to the shell 1 and far away from the heat exchange tube 2, so the second heat exchange fluid in the hysteresis area 403 can only rely on the mainstream A to indirectly exchange heat with the first heat exchange fluid). The second heat exchange fluid in the hysteresis area 403 is located at the edge of the mainstream A, so the flow rate is greatly reduced and even reverse swirl occurs, resulting in very slow molecular exchange and heat exchange between the second heat exchange fluid in the hysteresis area 403 and the mainstream A, further resulting in the second heat exchange fluid in the hysteresis area 403. The temperature is significantly lower than the mainstream A of the second heat exchange fluid, that is, the problem of a heat exchange blind spot occurs.

[0060] Reference Figure 8 In the present invention, since the counterweight 311 rotates around the rotating shaft to generate vibration, the vibration of the partition 41 can be decomposed into longitudinal vibration and transverse vibration. When the partition 41 vibrates longitudinally, it actually reciprocates "approaching-moving away" from the shell 1; when the partition 41 approaches the shell 1, the second heat exchange fluid is squeezed out from both sides of the clearance gap 402; when the partition 41 moves away from the shell 1, the second heat exchange fluid is sucked into the clearance gap 402 from both sides (due to negative pressure); under the influence of the mainstream A, the second heat exchange fluid in the original hysteresis area 403 can be merged into the mainstream A through the clearance gap 402 (in Figure 8 From the perspective shown, take the right opening of the clearance gap 402 as an example: when the partition 41 is close to the shell 1, part of the second heat exchange fluid flows out of the clearance gap 402 to the right, and the second heat exchange fluid flowing to the right flows countercurrently to the right mainstream A; when the partition 41 is away from the shell 1, part of the second heat exchange fluid flows into the clearance gap 402 to the left, and the second heat exchange fluid flowing to the left flows along the right mainstream A; therefore, the flow rate flowing to the left is greater than the flow rate flowing to the right, and the second heat exchange fluid in the hysteresis area 403 can slowly flow into the clearance gap 402. Similarly, it can be obtained that Figure 8 The perspective shown takes the left opening of the clearance gap 402 as an example: when the partition 41 is close to the shell 1, part of the second heat exchange fluid flows out of the clearance gap 402 to the left, and the second heat exchange fluid flowing to the left flows along the left mainstream A; when the partition 41 is away from the shell 1, part of the second fluid flows into the clearance gap 402 to the right, and the second heat exchange fluid flowing to the right is opposite to the left mainstream A; so that the flow rate flowing to the left is greater than the flow rate flowing to the right, the second heat exchange fluid in the clearance gap 402 can flow out slowly through the left opening and finally merge into the left mainstream A). The part of the second heat exchange fluid flowing through the hysteresis area 403 and the clearance gap 402 is a branch flow B, which is diverted from the mainstream A and finally merges into the mainstream A. After the low-temperature molecules in the hysteresis area 403 merge into the mainstream A, the temperature of the mainstream A is reduced, that is, the temperature difference between the first heat exchange fluid and the second heat exchange fluid increases, and the heat exchange efficiency is improved.

[0061] Reference Figure 7 , a stirring rod 42 is provided at one end of the side wall of the partition 41 near the clearance gap 402. The stirring rod 42 is in the shape of a sheet rod to reduce the obstruction to the fluidity of the second heat exchange fluid; the stirring rod 42 and the partition 41 are fixedly connected by bolts or by welding. The stirring rod 42 is in the shape of a 7 to adapt to the cross-sectional shape of the hysteresis area 403. When the partition 41 vibrates, the stirring rod 42 is driven to vibrate, thereby stirring the second heat exchange fluid in the hysteresis area 403, so that the second heat exchange fluid in the hysteresis area 403 can diffuse to the mainstream A on the right or accelerate to flow to the mainstream A on the left, thereby avoiding the occurrence of a heat exchange blind area.

[0062] First gaps are respectively provided between the left and right edge positions of the partition 41 and the inner wall of the first cavity 101 , and the first gaps are used to provide an accommodation space for the vibration of the partition 41 .

[0063] Reference Fig.10 , the first support plate 11 and the third support plate 13 are respectively installed vertically on the left and right sides of the shell 1 (for example, fixedly connected by bolts, fixedly connected by welding or fixedly connected by an integrated method); the heat exchange tube 2 also includes a plurality of elastic hoses 23 that can bend longitudinally and rebound, the bellows 21 is connected to the first support plate 11 by the elastic hose 23, and the bellows 21 is connected to the third support plate 13 by the elastic hose 23. The bellows 21 and the elastic hose 23 are sealed and fixedly connected (for example, sealed and fixed by welding or sealed and fixed by bolts and sealing rings); the bellows 21 is inserted into the mounting hole of the first support plate 11 and sealed and fixedly connected (for example, sealed and fixed by welding or sealed and fixed by bolts and sealing rings); the bellows 21 is inserted into the mounting hole of the third support plate 13 and sealed and fixedly connected (for example, sealed and fixed by welding or sealed and fixed by bolts and sealing rings).

[0064] The elastic hose 23 is an elastic metal tube or an elastic heat-resistant plastic tube, and adopts a corrugated tube structure to avoid the problem that the rigid tube reduces the vibration amplitude of the corrugated tube 21 and the connecting tube 22. The elastic hose 23 is made of materials with excellent elasticity and toughness, such as spring steel. When the elastic metal tube cannot support the weight of the corrugated tube 21, the connecting tube 22 and the partition 41 and cannot rebound, a sling is used to hang the top of the partition 41 on the top wall of the first cavity 101, thereby achieving load-bearing.

[0065] Reference Fig.10 and Fig.11 The corrugated tube 21, the connecting tube 22 and the elastic hose 23 are interconnected.

[0066] Reference Fig.12The cross section of the elastic hose 23 is elliptical, and the transverse diameter of the elastic hose 23 is 1.5 to 2.5 times the longitudinal diameter, so that the elastic hose 23 is more inclined to bend longitudinally, and the partition 41 has a larger longitudinal amplitude, thereby improving the fluidity of the second heat exchange fluid in the clearance gap 402 and the hysteresis area 403, thereby improving the heat exchange efficiency.

[0067] Reference Fig.10 and Fig.11 , a second support plate 12 is arranged vertically with the first support plate 11 in the housing 1 (for example, a sealed fixed connection is achieved by welding), and the second support plate 12 is arranged horizontally. A second cavity 102 and a third cavity 103 are respectively arranged on the upper and lower sides of the second support plate 12; two groups of heat exchange tubes 2 are arranged one above and one below. Each group of heat exchange tubes 2 includes at least one heat exchange tube 2. The second cavity 102 is connected to the heat exchange tube 2 at the upper position, and the third cavity 103 is connected to the heat exchange tube 2 arranged below. An isolation shell 14 is arranged on the side wall of the third support plate 13, and the isolation shell 14 is placed in the inner cavity of the housing 1. The isolation shell 14 and the third support plate 13 are sealed and fixedly connected by welding or by bolts and sealing rings. A fourth cavity 104 and a fifth cavity 105 are respectively arranged on the inner and outer sides of the isolation shell 14, and the heat exchange tube 2 is connected to the fourth cavity 104. An insulation layer is arranged in the fifth cavity 105. The insulation layer is, for example, a sponge layer, a foam layer, etc.

[0068] Reference Fig.10 The first cavity 101 and the second support plate 12 are respectively arranged on the left and right sides of the first support plate 11, so as to avoid structural conflict and isolate the first cavity 101, the second cavity 102 and the third cavity 103 from each other. Fig.11 The isolation shell 14 and the first cavity 101 are respectively arranged on the left and right sides of the third support plate 13, so that the first cavity 101, the fourth cavity 104 and the fifth cavity 105 are isolated from each other.

[0069] The first heat exchange fluid is steam (a water-gas mixture above 100 degrees Celsius) or hot water (liquid water above 50 degrees Celsius and below 100 degrees Celsius), and the second heat exchange fluid is cold water (liquid room temperature water, usually below 40 degrees Celsius).

[0070] Reference Figure 5 , Fig.10 and Fig.11, the first tube body 5, the second tube body 6, the third tube body 7 and the fourth tube body 8 are respectively inserted in the wall of the shell 1; the first tube body 5 is connected to the second cavity 102, the second tube body 6 is connected to the third cavity 103; the third tube body 7 is connected to one end of the first cavity 101, and the fourth tube body 8 is connected to the other end of the first cavity 101. When in use, the first heat exchange fluid is injected into the heat exchange tube 2 through the first tube body 5 and the second cavity 102, and the first heat exchange fluid flows through the fourth cavity 104 and the third cavity 103, and then is discharged from the second tube body 6. The second heat exchange fluid flows into one end of the first cavity 101 through the third tube body 7, and then flows out from the other end of the first cavity 101 through the fourth cavity 104. The first tube body 5, the second tube body 6, the third tube body 7 and the fourth tube body 8 are respectively connected and connected to the heat exchange system through pipelines, so as to realize circulation; the first tube body 5 is connected and connected to the liquid pump through a pipeline, and the third tube body 7 is connected and connected to the liquid pump through a pipeline, so as to realize pressure supply.

[0071] The outer surface of the connecting pipe 22 is hoop-connected with a sleeve, thereby enhancing the pressure bearing capacity and preventing the first heat exchange fluid from leaking.

[0072] A highly efficient and energy-saving heat exchange method, using a highly efficient and energy-saving corrugated tube heat exchanger for heat exchange, includes the following: injecting a first heat exchange fluid into a heat exchange tube 2, so that the first heat exchange fluid contacts the inner wall of the heat exchange tube 2 in the form of turbulence under the disturbance of the corrugated tube 21 and the inner spoiler assembly 3, thereby increasing the heat exchange efficiency. The first impeller 31 and the second impeller 32 rotate in opposite directions under the impact of the first heat exchange fluid and disrupt the laminar flow of the first heat exchange fluid, thereby increasing the heat exchange efficiency.

[0073] The rotation of the counterweight 311 causes vibration of the heat exchange tube 2 and the partition 41, which, on the one hand, increases the fluidity of the second heat exchange fluid at the surface of the heat exchange tube 2 and the surface of the partition 41; on the other hand, it continuously changes the height, cross-sectional area and volume of the clearance gap 402 and causes the vibration of the stirring rod 42, so as to increase the fluidity of the second heat exchange fluid in the hysteresis area 403, thereby increasing the heat exchange efficiency.

[0074] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "up", "down", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0075] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0076] To sum up, for those skilled in the art, according to the guidance of the present invention, without departing from the principles and spirit of the present invention, the changes, modifications, substitutions and deformations made to the present invention still fall within the protection scope of the present invention.

Claims

1. A high-efficiency and energy-saving corrugated tube heat exchanger, characterized in that: The heat exchange tube (2) comprises an outer shell (1), a heat exchange tube (2), an inner spoiler assembly (3) and an outer spoiler assembly (4); a first cavity (101) is provided in the middle of the inner cavity of the outer shell (1), and the heat exchange tube (2) is installed horizontally in the first cavity (101); a first heat exchange fluid and a second heat exchange fluid are provided on the inner and outer sides of the heat exchange tube (2), respectively; The heat exchange tube (2) comprises a plurality of corrugated tubes (21) and a plurality of connecting tubes (22), wherein the corrugated tubes (21) and the connecting tubes (22) are alternately connected in series; The inner turbulence assembly (3) comprises a first impeller (31) and a second impeller (32) which are coaxially arranged and rotate in opposite directions; the first impeller (31) and the second impeller (32) rotate in opposite directions under the impact of the first heat exchange fluid and disturb the laminar flow of the first heat exchange fluid; the inner turbulence assembly (3) is installed in the heat exchange tube (2); The external spoiler assembly (4) comprises a plurality of baffles (41) sleeved on the outer wall of the heat exchange tube (2), the baffles (41) being arranged in an N-shape in the first cavity (101); a flow gap (401) and a clearance gap (402) are provided between the baffles (41) and the inner wall of the outer shell (1); A counterweight (311) is provided at the outer edge of any blade of the first impeller (31) for disturbing the second heat exchange fluid at the left and right sides of the clearance gap (402); The inner spoiler assembly (3) further comprises a mounting frame (33), and the first impeller (31) and the second impeller (32) are rotatably mounted on two sides of the mounting frame (33) via a rotating shaft respectively; The mounting frame (33) is mounted on the inner wall of the connecting tube (22); the connecting tube (22) comprises a first arc plate (221) and a second arc plate (222) which are interlocked, the inner wall of the first arc plate (221) being provided with a first clamping groove (2211) for clamping the lower edge of the mounting frame (33), and the inner wall of the second arc plate (222) being provided with a second clamping groove (2221) for clamping the upper edge of the mounting frame (33).

2. The high-efficiency and energy-saving corrugated tube heat exchanger according to claim 1 is characterized in that: The diameter of the first impeller (31) is 1.3 to 2.2 times the diameter of the second impeller (32).

3. The high-efficiency and energy-saving corrugated tube heat exchanger according to claim 2 is characterized in that: The first arc plate (221) and the second arc plate (222) are sealed and connected at the buckled positions.

4. The high-efficiency and energy-saving corrugated tube heat exchanger according to claim 3 is characterized in that: A first support plate (11) and a third support plate (13) are respectively vertically mounted on the left and right sides of the shell (1); the heat exchange tube (2) further comprises a plurality of elastic hoses (23) capable of longitudinal bending and rebounding, the corrugated tube (21) and the first support plate (11) are connected via the elastic hoses (23), and the corrugated tube (21) and the third support plate (13) are connected via the elastic hoses (23).

5. The high-efficiency and energy-saving corrugated tube heat exchanger according to claim 4 is characterized in that: The cross section of the elastic hose (23) is elliptical, and the transverse diameter of the elastic hose (23) is 1.5 to 2.5 times the longitudinal diameter.

6. The high-efficiency and energy-saving corrugated tube heat exchanger according to claim 5 is characterized in that: A second support plate (12) is provided in the housing (1) and is arranged perpendicularly to the first support plate (11); a second cavity (102) and a third cavity (103) are provided on the upper and lower sides of the second support plate (12), respectively; two groups of heat exchange tubes (2) are provided and are arranged one above and one below; the second cavity (102) is communicated with the heat exchange tubes (2) at the upper position, and the third cavity (103) is communicated with the heat exchange tubes (2) arranged at the lower position; An isolation shell (14) is provided on the side wall of the third support plate (13); a fourth cavity (104) and a fifth cavity (105) are provided on the inner and outer sides of the isolation shell (14), respectively; the heat exchange tube (2) is connected to the fourth cavity (104); and a heat insulation layer is provided in the fifth cavity (105).

7. The high-efficiency and energy-saving corrugated tube heat exchanger according to claim 6 is characterized in that: A stirring rod (42) is provided at one end of the side wall of the partition (41) close to the clearance gap (402).

8. A highly efficient and energy-saving heat exchange method, characterized in that: The heat exchange is performed using the high-efficiency and energy-saving corrugated tube heat exchanger according to claim 7, comprising the following contents: The first heat exchange fluid is injected into the heat exchange tube (2), so that the first heat exchange fluid contacts the inner wall of the heat exchange tube (2) in the form of turbulence under the disturbance action of the corrugated tube (21) and the inner turbulent assembly (3); the first impeller (31) and the second impeller (32) rotate in opposite directions under the impact of the first heat exchange fluid and disturb the laminar flow of the first heat exchange fluid; The rotation of the counterweight (311) causes the heat exchange tube (2) and the partition (41) to vibrate, thereby increasing the fluidity of the second heat exchange fluid at the surface of the heat exchange tube (2) and the surface of the partition (41) on the one hand, and continuously changing the height of the clearance gap (402) and causing the stirring rod (42) to vibrate, thereby increasing the fluidity of the second heat exchange fluid in the hysteresis area (403).

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