Novel heat exchanger

Abstract

According to the novel heat exchanger provided by the invention, the heat exchange uniformity of the fluid in the tube pass and the fluid in the shell pass is better, so that the working performance of the heat exchanger is excellent. The heat exchanger comprises end sockets at the two ends, tube plates and a tube bundle, the tube plates are fixedly installed in the two end sockets respectively, the tube bundle is installed between the tube plates, the two ends of the tube bundle are connected with the tube plates at the two ends respectively, and a guide rod is arranged at the central axis in each heat exchange tube of the tube bundle. The guide rod extends in the length direction of the heat exchange tube, the two ends of the guide rod are connected with the two ends of the heat exchange tube respectively, and splitter blades are evenly distributed in the length direction of the guide rod.

Description

Technical Field

[0001] The invention relates to the technical field of heat exchangers, in particular to a novel heat exchanger. Background Art

[0002] The shell and tube heat exchanger is mainly composed of the shell, tube bundle, tube sheet and head. The shell is circular and equipped with parallel tube bundles. Both ends of the tube bundle are fixed on the tube sheet. The two fluids that exchange heat in the shell and tube heat exchanger, one flows in the tube, and its stroke is called the tube side; the other flows outside the tube, and its stroke is called the shell side. The fluid flowing in the tube side, because the fluid at the front end first contacts with the fluid in the shell side for continuous heat exchange, the temperature of the fluid at the front end drops faster than the fluid at the rear end, that is, when the temperature of the fluid at the front end drops significantly, the temperature of the fluid at the rear end drops to a moderate temperature, resulting in poor temperature uniformity of the fluid flowing out of the tube side, and ultimately affecting the heat exchange effect of the heat exchanger. Summary of the invention

[0003] In view of the problem that the cooling uniformity of the tube-side fluid in the existing heat exchanger is poor during the heat exchange process, which ultimately affects the cooling effect, the present invention provides a new heat exchanger with better heat exchange uniformity between the fluid in the tube-side and the fluid in the shell-side, thereby making the heat exchanger have excellent working performance.

[0004] The technical solution is as follows: a new type of heat exchanger, which includes a head at both ends, a tube sheet and a tube bundle, the tube sheets are fixedly installed inside the two heads respectively, the tube bundle is installed between the tube sheets, and the two ends are respectively connected to the tube sheets at the two ends, and is characterized in that: a guide rod is respectively provided at the central axis inside each heat exchange tube of the tube bundle, the guide rod extends along the length direction of the heat exchange tube, and the two ends thereof are respectively connected to the two ends of the heat pipe, and evenly distributed splitter blades are provided along the length direction of the guide rod.

[0005] It is further characterized in that: the splitter blade comprises a fixed blade and an adjustable blade, the fixed blade and the adjustable blade are arranged at intervals, and the adjustable blade is rotatably connected to the guide rod through an adjustable mechanism; The fixed splitter blade and the adjustable splitter blade are semicircular, and a protrusion protruding outward is provided at the center of the right-angled side; The adjustable mechanism comprises an angle adjustment disk sleeved on the outside of the guide rod, a through hole is provided at the protruding portion of the adjustable splitter blade, and inner teeth matching with the outer teeth of the angle adjustment disk are provided inside the through hole; The two ends of the guide rod are connected to the heat exchange tube end cover via a detachable mechanism respectively; The two ends of the guide rod are respectively provided with connecting covers, and the outer circumference of the connecting cover is connected with snap blocks through springs in four directions. The cross-section of the snap blocks is "convex" shaped, and the end cover of the heat exchange tube is provided with a through snap groove that cooperates with the snap blocks.

[0006] After adopting the above structure, since guide rods are respectively provided inside the heat exchange tubes of the tube bundle, and evenly distributed splitter blades are provided along the length direction of the guide rods, through the arrangement of the splitter blades, the liquid flowing through the tube bundle can fully exchange heat with the fluid in the shell side, thereby improving the heat exchange uniformity between the fluid in the tube side and the fluid in the shell side, and making the heat exchanger have excellent working performance.

[0007] At the same time, the splitter blades include fixed blades and adjustable blades, which are arranged at intervals. The fixed blades and the adjustable blades can be arranged alternately or in the same direction, thereby adjusting the heat exchange conditions of the fluid in the heat exchange tube to different degrees, further improving the heat exchange uniformity between the fluid in the tube side and the fluid in the shell side. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of staggered arrangement of splitter blades on the guide rod of the present invention; Figure 3 It is a schematic diagram of the structure in which the splitter blades on the guide rod of the present invention are arranged in the same direction; Figure 4 It is a schematic diagram of the structure of the adjustable splitter blade and the angle adjustment disk of the present invention; Figure 5 It is a schematic structural diagram of the connection between the end of the guide rod and the heat exchange tube of the present invention. DETAILED DESCRIPTION

[0009] like Figures 1 to 4 As shown, a novel heat exchanger comprises a head 1 at both ends, a tube sheet 2 and a tube bundle 3. The two tube sheets 2 are fixedly installed inside the two heads 1 respectively. The tube bundle 3 is installed between the tube sheets 2 and its two ends are connected to the tube sheets 2 at both ends respectively. The upper and lower ends of the tube bundle 3 are respectively provided with mounting plates 4, and baffles 5 are provided between the mounting plates 4. A guide rod 32 is respectively provided at the central axis of each heat exchange tube 31 of the tube bundle 3. The guide rod 32 extends along the length direction of the heat exchange tube 31 and its two ends are respectively connected to the two ends of the heat exchange tube 31. Evenly distributed splitter blades are provided along the length direction of the guide rod 32. When working, the splitter blades inside the heat exchange tube 31 increase the contact area between the fluid flowing through and the inner wall, thereby improving the heat exchange uniformity between the fluid in the tube side and the fluid in the shell side.

[0010] Furthermore, the splitter blades include fixed blades 33 and adjustable blades 34, the fixed blades 33 and the adjustable blades 34 are arranged at intervals, and the adjustable blades 34 are rotatably connected to the guide rod 32 through an adjustable mechanism. Since the splitter blades include two types, during operation, the fixed blades 33 and the adjustable blades 34 can be arranged in the same direction or staggered, so that the heat exchange of the fluid in the heat exchange tube 31 can be adjusted to different degrees, further improving the heat exchange uniformity of the fluid in the tube side and the fluid in the shell side.

[0011] Furthermore, the fixed splitter blade 33 and the adjustable splitter blade 34 are both semicircular, and a protrusion protruding outward is provided at the center of the right-angle side. The protrusion of the fixed splitter blade 33 is provided with a mounting through hole, through which it is mounted on the outside of the guide rod 32 and fixedly connected. The semicircular splitter blade is provided, so that the fluid in the heat exchange tube 31 can be fully contacted.

[0012] Specifically, the adjustable mechanism includes an angle adjustment disk 35 mounted on the outside of the guide rod 32, a through hole is provided at the protruding portion of the adjustable splitter blade 34, and an inner tooth 341 is provided inside the through hole to match the outer tooth of the angle adjustment disk 35. Through the arrangement of the angle adjustment disk 35 and the inner tooth 341, the adjustable splitter blade 34 can rotate at different angles relative to the guide rod 32, so that the contact area between the fluid inside the heat exchange tube 31 and the inner wall thereof can be different, thereby achieving different heat exchange effect requirements.

[0013] Furthermore, both ends of the guide rod 32 are connected to the end covers of the heat exchange tube 31 through detachable mechanisms, thereby facilitating the disassembly and assembly of the guide rod 32 .

[0014] Specifically, Figure 5 As shown, connecting covers 321 are respectively provided at both ends of the guide rod 32, and snap-fit ​​blocks 322 are respectively connected to the outer circumference of the connecting cover 321 in four directions through springs. The cross section of the snap-fit ​​block 322 is "convex", and the end cover of the heat exchange tube 31 is provided with a through snap-fit ​​groove 311 that matches the snap-fit ​​block 322. The setting of the snap-fit ​​block 322 and the snap-fit ​​groove 311 allows the guide rod 32 to be connected to the heat exchange tube 31. When it needs to be removed, the snap-fit ​​block 322 is pressed from the outside to the inside to release the connection between the guide rod and the heat exchange tube 31, so that the splitter blades on the guide rod 32 can be adjusted after disassembly.

[0015] The above are only preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by anyone familiar with the technology within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A novel heat exchanger, comprising a head at both ends, a tube sheet and a tube bundle, wherein the tube sheets are fixedly installed inside the two heads, the tube bundle is installed between the tube sheets, and the two ends are connected to the tube sheets at the two ends, respectively, characterized in that: A guide rod is provided at the central axis of each heat exchange tube of the tube bundle. The guide rod extends along the length direction of the heat exchange tube, and its two ends are respectively connected to the two ends of the heat pipe. Evenly distributed splitter blades are provided along the length direction of the guide rod.

2. A novel heat exchanger according to claim 1, characterized in that: The splitter blade comprises a fixed blade and an adjustable blade. The fixed blade is arranged at an interval from the adjustable blade. The adjustable blade is rotatably connected to the guide rod through an adjustable mechanism.

3. A novel heat exchanger according to claim 2, characterized in that: The fixed splitter blade and the adjustable splitter blade are semicircular, and a protrusion protruding outward is provided at the center of the right-angled side.

4. A novel heat exchanger according to claim 3, characterized in that: The adjustable mechanism comprises an angle adjustment disk sleeved on the outside of the guide rod, a through hole is arranged at the protruding portion of the adjustable splitter blade, and inner teeth matching with the outer teeth of the angle adjustment disk are arranged inside the through hole.

5. A novel heat exchanger according to claim 1, characterized in that: The two ends of the guide rod are connected to the heat exchange tube end cover via a detachable mechanism respectively.

6. A novel heat exchanger according to claim 5, characterized in that: The two ends of the guide rod are respectively provided with connecting covers, and the outer circumference of the connecting cover is connected with snap blocks through springs in four directions. The cross-section of the snap blocks is "convex" shaped, and the end cover of the heat exchange tube is provided with a through snap groove that cooperates with the snap blocks.

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