Heat exchanger

Abstract

The utility model relates to a heat exchanger which comprises a baffle plate assembly composed of a first baffle plate, a second baffle plate, a third baffle plate and a fourth baffle plate, and further comprises a central pipe. The first baffle plate, the second baffle plate, the third baffle plate and the fourth baffle plate are sequentially connected with the central pipe in sequence, the heat exchanger further comprises an adjusting assembly, and the second baffle plate and the fourth baffle plate are movably matched with the central pipe through the adjusting assembly. According to the utility model, the baffle plate component is partially movably matched with the central tube, and then the central tube is connected with the adjusting component to realize the movement of part of the baffle plate component relative to the central tube, so that at least two states can be switched in the shell pass, and the shell pass heat exchanger can be applied to the field of heat energy recovery under various working conditions; the device is suitable for gas-state, liquid-state and gas-liquid mixed-state media. In addition, the piezoresistance of the equipment can be reduced through the adjustment of the baffle plate assembly.

Description

Technical Field

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

[0002] Baffle plates are important components in heat exchangers, mainly used to change the flow direction of fluids in the heat exchanger tube bundle, thereby increasing the contact area between the fluid and the heat exchange tubes and improving the heat exchange efficiency. They are usually installed in the shell of the heat exchanger and arranged parallel or at a certain angle to the heat exchange tube bundle. The arrangement position and notch size of traditional baffle plates are fixed after the equipment is manufactured, thus restricting the types and flow patterns of heat exchange media.

[0003] During use, the arrangement position and notch of some baffle plates will also limit the phase state of the heat exchange medium. For example, when using a gaseous medium with a baffle plate having a too small notch, its pressure resistance will be much greater than that of a liquid medium; a too small baffle plate spacing will also make the pressure resistance of the gaseous medium much greater than that of the liquid medium; a too large pressure resistance of the heat exchanger will require more power from the circulating equipment, resulting in high energy consumption. Summary of the Utility Model

[0004] Aiming at the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a heat exchanger to solve one or more problems in the prior art.

[0005] To achieve the above purpose, the technical solution of the utility model is as follows:

[0006] A heat exchanger, the heat exchanger includes a baffle plate assembly composed of a first baffle plate, a second baffle plate, a third baffle plate and a fourth baffle plate. The heat exchanger further includes a central tube. The first baffle plate, the second baffle plate, the third baffle plate and the fourth baffle plate are sequentially connected to the central tube in sequence. The heat exchanger further includes an adjusting assembly, wherein the second baffle plate and the fourth baffle plate are movably cooperated with the central tube through the adjusting assembly.

[0007] Further, the first baffle plate, the second baffle plate, the third baffle plate and the fourth baffle plate are all provided with first holes coaxial in the first direction, and the first holes are fitted to the central tube.

[0008] Further, the surfaces of the first baffle plate and the third baffle plate are both provided with second holes and third holes, and the second holes and the third holes are both coaxially arranged in the first direction respectively.

[0009] Further, the surfaces of the second baffle plate and the fourth baffle plate are both provided with fourth holes and fifth holes, and the fourth holes and the fifth holes are both coaxially arranged in the first direction respectively.

[0010] Further, the heat exchanger further includes a pull rod that penetrates through the second hole or the fourth hole.

[0011] Further, the heat exchanger further includes spacer pipes that are respectively arranged between adjacent first baffle plates and third baffle plates and between adjacent second baffle plates and fourth baffle plates.

[0012] Further, the spacer pipes are coaxially arranged with the third hole or the fifth hole in a first direction.

[0013] Further, pull rods are arranged inside the spacer pipes, the heat exchanger further includes a shell, a tube sheet is arranged inside the shell, and two ends of the pull rod are connected to the tube sheet.

[0014] Further, the adjusting assembly includes an adjusting block and an adjusting member. The adjusting block is fixedly connected inside the shell. A part of the surface of the central tube is provided with threads that are engaged with the adjusting block. The adjusting member is arranged at one end of the central tube; the other end of the central tube away from the adjusting block is also fixedly connected to the fourth baffle plate.

[0015] Further, the notch parts of the first baffle plate, the second baffle plate, the third baffle plate, and the fourth baffle plate do not overlap with each other in sequence.

[0016] Compared with the prior art, the beneficial technical effects of the present utility model are as follows:

[0017] In the present utility model, a baffle plate assembly is provided to be movably fitted to a central tube, and then an adjusting assembly is connected to the central tube to realize the movement of a part of the baffle plate assembly relative to the central tube. Furthermore, at least two states can be switched inside the shell side, and it can be applied to the field of heat energy recovery in various working conditions; when the medium phase state changes in the heat exchanger, the efficiency of the heat exchanger can be adjusted through the adjusting assembly to increase the total amount of heat energy recovered, and it is applicable to media in gaseous, liquid, and gas-liquid mixed states. In addition, the pressure resistance of the equipment can be reduced through the adjustment of the baffle plate assembly, so that the circulation pump reduces the output power and thus reduces the energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The structure diagram of a heat exchanger according to an embodiment of the present utility model is shown.

[0019] Figure 2 The partial structure diagram inside the shell side of a heat exchanger according to an embodiment of the present utility model is shown.

[0020] Figure 3 The enlarged structure diagram of the end part of the central tube of a heat exchanger according to an embodiment of the present utility model is shown.

[0021] Figure 4 The structural schematic diagram of the first baffle of a heat exchanger according to an embodiment of the present utility model is shown.

[0022] Figure 5 The structural schematic diagram of the second baffle of a heat exchanger according to an embodiment of the present utility model is shown.

[0023] Figure 6 The structural schematic diagram of the third baffle of a heat exchanger according to an embodiment of the present utility model is shown.

[0024] Figure 7 The structural schematic diagram of the fourth baffle of a heat exchanger according to an embodiment of the present utility model is shown.

[0025] Reference numerals in the drawings: 1, the first baffle; 2, the second baffle; 3, the third baffle; 4, the fourth baffle; 5, the central tube; 501, the thread; 6, the first hole; 7, the second hole; 8, the third hole; 9, the fourth hole; 10, the fifth hole; 11, the pull rod; 12, the spacer tube; 13, the shell; 14, the tube sheet; 15, the adjusting assembly; 1501, the adjusting block; 1502, the adjusting member. Specific embodiments

[0026] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the following further details a heat exchanger proposed by the present utility model in conjunction with the drawings and specific embodiments. According to the following description, the advantages and features of the present utility model will be clearer. It should be noted that the drawings are in a very simplified form and all use non-precise scales. The orientation or positional relationships indicated by terms such as "center", "lateral", "length", "width", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "side", etc. are based on the orientation or positional relationships shown in the drawings, rather than indicating or implying that a heat exchanger or component must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation of the present utility model, and is only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present utility model. In order to make the purpose, features and advantages of the present utility model more obvious and understandable, please refer to the drawings.

[0027] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present utility model. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope that the technical content disclosed by the present utility model can cover.

[0028] The specific structure of a heat exchanger is described below:

[0029] Please refer to Figures 1 to 7 , for the heat exchanger of this embodiment, the heat exchanger includes a baffle plate assembly composed of a first baffle plate 1, a second baffle plate 2, a third baffle plate 3, and a fourth baffle plate 4. The heat exchanger further includes a housing 13. The first baffle plate 1, the second baffle plate 2, the third baffle plate 3, and the fourth baffle plate 4 are sequentially arranged in the housing 13 in order.

[0030] Furthermore, the first baffle plate 1, the second baffle plate 2, the third baffle plate 3, and the fourth baffle plate 4 are all provided with a first hole 6 coaxial in the first direction. The heat exchanger further includes a central tube 5. The first hole 6 is fitted with the central tube 5 such that the central tube 5 penetrates through the first baffle plate 1, the second baffle plate 2, the third baffle plate 3, and the fourth baffle plate 4. By providing the central tube 5, it plays a role in structural support, enhancing the overall stability and reliability of the heat exchanger. Preferably, in this embodiment, the first direction is the direction parallel to the length of the central tube 5.

[0031] Furthermore, the heat exchanger further includes an adjustment assembly 15. The adjustment assembly 15 includes an adjustment block 1501 and an adjustment member 1502. The adjustment block 1501 is fixedly connected inside the housing 13. One section of the central tube 5 is provided with a thread 501. The thread 501 is fitted with the adjustment block 1501. The adjustment member 1502 is arranged at one end of the central tube 5 for adjusting the central tube 5. The end of the central tube 5 far from the adjustment block 1501 is also fixedly connected to the fourth baffle plate 4. In other embodiments, the object of the fixed connection can also be the second baffle plate 2.

[0032] Furthermore, the surfaces of the first baffle plate 1 and the third baffle plate 3 are both provided with a second hole 7 and a third hole 8. The second hole 7 and the third hole 8 are both coaxial in the first direction respectively. Similarly, the surfaces of the second baffle plate 2 and the fourth baffle plate 4 are both provided with a fourth hole 9 and a fifth hole 10. The fourth hole 9 and the fifth hole 10 are both coaxial in the first direction respectively.

[0033] Furthermore, the heat exchanger further includes a pull rod 11. The pull rod 11 penetrates through the second hole 7 or the fourth hole 9. There is a tube sheet 14 inside the housing 13. In this embodiment, two tube sheets 14 are arranged in the first direction. The two ends of the pull rod 11 are respectively connected to the tube sheets 14. Preferably, in this embodiment, the second hole 7 and the fourth hole 9 are preferably equal-diameter holes, which is convenient for the assembly of the pull rod 11.

[0034] Further, the heat exchanger further includes spacer pipes 12, which are respectively disposed between the adjacent first baffle 1 and the third baffle 3, and between the adjacent second baffle 2 and the fourth baffle 4. The spacer pipes 12 are respectively coaxially arranged with the third holes 8 or the fifth holes 10 in the first direction. The second baffle 2 and the fourth baffle 4 are respectively movably fitted to the central pipe 5. By rotating the adjusting member 1502, the central pipe 5 moves relative to the adjusting block 1501. Under the action of the spacer pipes 12 between the second baffle 2 and the fourth baffle 4, the second baffle 2 and the fourth baffle 4 move in the first direction and respectively abut against the first baffle 1 and the third baffle 3 to change the fluid motion state.

[0035] Further, tie rods 11 are arranged in the spacer pipes 12. Through the interaction between the tie rods 11 and the spacer pipes 12, the relative positions and stability of the first baffle 1, the second baffle 2, the third baffle 3 and the fourth baffle 4 are effectively ensured.

[0036] Further, the notch portions of the first baffle 1, the second baffle 2, the third baffle 3 and the fourth baffle 4 do not coincide with each other in sequence. Thus, when adjusting the adjusting member 1502, the original state where the first baffle 1, the second baffle 2, the third baffle 3 and the fourth baffle 4 are evenly and equidistantly arranged can be changed, so that the first baffle 1 fits the second baffle 2 and the third baffle 3 fits the fourth baffle 4, thereby changing the fluid motion form.

[0037] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification. The above embodiments only represent several implementation manners of the present invention, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A heat exchanger, characterized in that: The heat exchanger includes a baffle plate assembly composed of a first baffle plate, a second baffle plate, a third baffle plate, and a fourth baffle plate. The heat exchanger further includes a central tube. The first baffle plate, the second baffle plate, the third baffle plate, and the fourth baffle plate are sequentially connected to the central tube in order. The heat exchanger further includes an adjustment assembly, wherein the second baffle plate and the fourth baffle plate are movably fitted to the central tube via the adjustment assembly.

2. The heat exchanger according to claim 1, characterized in that: The first baffle plate, the second baffle plate, the third baffle plate, and the fourth baffle plate are all provided with first holes coaxial in a first direction, and the first holes are fitted to the central tube.

3. The heat exchanger according to claim 2, wherein: Second holes and third holes are provided on the surfaces of the first baffle plate and the third baffle plate, and the second holes and the third holes are both coaxially arranged in the first direction respectively.

4. A heat exchanger according to claim 3, characterized in that: Fourth holes and fifth holes are provided on the surfaces of the second baffle plate and the fourth baffle plate, and the fourth holes and the fifth holes are both coaxially arranged in the first direction respectively.

5. A heat exchanger according to claim 4, wherein: The heat exchanger further includes a pull rod, and the pull rod penetrates through the second hole or the fourth hole.

6. The heat exchanger according to claim 5, characterized in that: The heat exchanger further includes spacer tubes, and the spacer tubes are respectively arranged between the adjacent first baffle plate and the third baffle plate and between the adjacent second baffle plate and the fourth baffle plate.

7. The heat exchanger according to claim 6, characterized in that: The spacer tubes are respectively coaxially arranged with the third hole or the fifth hole in the first direction.

8. A heat exchanger according to claim 7, characterized in that: The pull rod is arranged in each of the spacer tubes. The heat exchanger further includes a shell, and a tube sheet is arranged in the shell. Both ends of the pull rod are connected to the tube sheet.

9. A heat exchanger according to claim 8, characterized in that: The adjustment assembly includes an adjustment block and an adjustment member. The adjustment block is fixedly connected to the inside of the shell. A part of the surface of the central tube is provided with threads, and the threads are fitted to the adjustment block. The adjustment member is arranged at one end of the central tube; the other end of the central tube away from the adjustment block is fixedly connected to the fourth baffle plate.

10. A heat exchanger according to claim 9, characterized in that: The notch parts of the first baffle plate, the second baffle plate, the third baffle plate, and the fourth baffle plate do not coincide with each other in sequence.

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