Efficient spiral tube type heat exchanger structure

Abstract

The utility model discloses an efficient spiral pipe type heat exchanger structure, which belongs to the field of spiral pipe type heat exchangers and comprises a spiral pipe type heat exchanger body, a heating medium inlet is fixedly connected to the left side of the spiral pipe type heat exchanger body, and an arranged filtering mechanism is matched with the spiral pipe type heat exchanger body for use. Before a heating medium enters the spiral pipe type heat exchanger body for heat exchange, the heating medium enters the filter box through the inlet and enters the inner frame through the through holes, impurities carried in the heating medium can be effectively filtered through the filter screen installed in the inner frame, the impurities are filtered and concentrated in the inner frame, and the heat exchange efficiency is improved. The filtered heating medium enters the spiral pipe type heat exchanger body through the heating medium inlet to exchange heat with a refrigerant, so that impurities in the heating medium are filtered and can be effectively removed, deposition of the impurities on the pipe wall of the spiral pipe is reduced, and the heat exchange efficiency is improved. The purpose of improving the heat transfer effect and the heat exchange efficiency of the spiral tube type heat exchanger body is achieved.

Description

Technical Field

[0001] This utility model relates to the field of spiral tube heat exchangers, and in particular to a high-efficiency spiral tube heat exchanger structure. Background Technology

[0002] A spiral tube heat exchanger is a device that achieves efficient heat exchange based on a spiral tube bundle structure. Its core component consists of one or more metal tubes spirally wound to form a multi-layered coil, which is placed in a sealed shell to form independent flow channels for the tube side and shell side. During operation, two fluids at different temperatures flow in opposite directions through the tube side and shell side, respectively. The fluid in the tube side is subjected to centrifugal force within the spiral channel, forming a secondary circulation that generates turbulence in both the axial and radial directions, significantly enhancing boundary layer disturbance and improving the convective heat transfer coefficient. The fluid in the shell side spirals upward along the outer wall of the spiral tube bundle, achieving heat exchange through cross-flow with the tube bundle.

[0003] In the prior art, a Chinese utility model patent with publication number "CN219037692U" and patent name "A Spiral Heat Exchanger" describes a technical solution including: "a shell, with detachable covers bolted and nut-mounted at both ends of the shell, and partitions clamped on both sides inside the shell; a first assembly head welded to the upper left and lower right sides inside the shell; a second assembly head welded to the outer side inside the detachable cover; a spiral tube embedded between the partitions; a baffle plate bolted to the upper and lower parts of the inner wall of the shell, with a spiral tube inserted inside the baffle plate; a filter detachable cover structure supported on the outer wall of the partition; the filter detachable cover structure includes an inserting screw, with a clamping nut threaded to the left side of the outer wall of the inserting screw; a mesh cover sleeved on the outer wall of the inserting screw; an activated carbon layer placed on the left side inside the mesh cover; and a pressing baffle structure supported on the right side of the inner wall of the mesh cover."

[0004] Although the use of a mesh cover and activated carbon layer to filter the heat medium can prevent impurities from accumulating inside the spiral tube and improve heat transfer and efficiency, the mesh cover is fixed to one end of the shell with bolts and nuts, and the activated carbon layer is also fixed inside the mesh cover with bolts and nuts. This makes it inconvenient to disassemble the mesh cover to clean the accumulated impurities after long-term use, and it is also inconvenient to disassemble and clean the activated carbon layer. The operation is cumbersome, which not only increases the time cost and labor intensity of equipment maintenance, but also affects the filtration effect due to untimely cleaning, thereby reducing the overall performance and service life of the spiral tube heat exchanger.

[0005] Therefore, in order to solve the above-mentioned technical problems, this utility model proposes a high-efficiency spiral tube heat exchanger structure. Utility Model Content

[0006] The main objective of this invention is to provide a high-efficiency spiral tube heat exchanger structure that can effectively solve the problems in the background art.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A high-efficiency spiral tube heat exchanger structure includes a spiral tube heat exchanger body. A heat medium inlet is fixedly connected to the left side of the spiral tube heat exchanger body, and a heat medium outlet is fixedly connected to the right side of the spiral tube heat exchanger body. A refrigerant inlet and a refrigerant outlet are also fixedly connected to the outer wall of the spiral tube heat exchanger body. A filter mechanism is fixedly connected to the heat medium inlet. The filter mechanism includes a filter box, an inner frame, a sealing box cover, a filter screen, a limiting plate, a spring, and a second handle. The inner frame is fixedly connected inside the filter box, and the filter screen is fixedly connected inside the inner frame by inserts on both sides. The limiting plate is movably connected to the side plates on both sides of the top surface of the sealing box cover by guide rods on the inner side wall, and the spring is sleeved outside the guide rods. The second handle is fixedly connected between the guide rods. The sealing box cover is fixedly connected to the top surface of the filter box by the limiting plate.

[0009] Furthermore, an inlet is fixedly installed on the left side of the filter box, and an outlet is fixedly installed on the right side of the filter box. The outlet is fixedly installed together with the heat medium inlet. A set of symmetrical limiting protrusions are also fixedly installed on the two side walls of the filter box.

[0010] Furthermore, the inner frame is placed inside the filter box, and through holes are respectively opened on the two side walls of the inner frame. A set of symmetrical slots are opened on the right side of the inner wall of the inner frame, and a first handle is fixedly installed on the top surface of the inner frame.

[0011] Furthermore, inserts are fixedly installed on both sides of the filter screen, and the inserts are inserted into the slots.

[0012] Furthermore, a set of symmetrical side plates are fixedly installed on the top surface of the sealing box cover, and a set of symmetrical guide holes are provided on the side wall of the side plates.

[0013] Furthermore, the side wall of the limiting plate is provided with a limiting hole corresponding to the limiting protrusion, and the limiting protrusion is inserted into the limiting hole. A set of symmetrical guide rods are fixedly installed on the inner side wall of the limiting plate, and the guide rods are inserted into the guide hole. The second handle is fixedly installed between the symmetrical guide rods, and the spring is sleeved on the outside of the guide rod and fixedly installed between the second handle and the opposite side wall of the limiting plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] In this invention, the filtration mechanism, in conjunction with the spiral tube heat exchanger body, allows the heat medium to enter the spiral tube heat exchanger body before heat exchange. The heat medium enters the filter box through the inlet and then through the through-hole into the inner frame. The filter screen installed in the inner frame effectively filters impurities carried in the heat medium and concentrates them within the inner frame. After filtration, the heat medium enters the spiral tube heat exchanger body through the heat medium inlet to exchange heat with the refrigerant. Thus, by filtering impurities in the heat medium, these impurities can be effectively removed, reducing their deposition on the spiral tube wall, thereby improving the heat transfer effect and heat exchange efficiency of the spiral tube heat exchanger body.

[0016] Furthermore, when it is necessary to clean impurities after filtration and replace the filter screen, simply push the second handle outward to allow the guide rod to pass through the guide hole, the spring to tighten, the limiting plate to move outward, and the limiting protrusion to move out of the limiting hole, making it easy to lift the sealing box cover. Then, the inner frame can be easily removed from the filter box using the first handle, allowing for the cleaning of impurities inside the inner frame and the cleaning or replacement of the filter screen. This greatly simplifies the cleaning and maintenance operation, reduces cleaning time and labor intensity, and improves the maintainability and efficiency of the equipment. At the same time, timely and effective cleaning of filter impurities and maintenance of the filter screen can prevent impurities from causing wear and corrosion to the spiral tube, reduce problems such as poor fluid flow caused by impurity accumulation, extend the service life of the spiral tube heat exchanger body, reduce equipment maintenance and replacement costs, and improve the stability and reliability of equipment operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a structurally disassembled schematic diagram of the filtration mechanism of this utility model;

[0019] Figure 3 This is a structural breakdown diagram of the inner frame of this utility model;

[0020] Figure 4 This is a structural disassembly diagram of the sealing box cover of this utility model.

[0021] In the diagram: 1. Spiral tube heat exchanger body; 2. Heat medium inlet; 3. Heat medium outlet; 4. Refrigerant inlet; 5. Refrigerant outlet; 6. Filtration mechanism; 7. Filter box; 8. Inlet; 9. Outlet; 10. Limiting protrusion; 11. Inner frame; 12. Sealing box cover; 13. Through hole; 14. Slot; 15. First handle; 16. Filter screen; 17. Insert strip; 18. Side plate; 19. Guide hole; 20. Limiting plate; 21. Limiting hole; 22. Guide rod; 23. Spring; 24. Second handle. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figure 1 - Figure 4 As shown, a high-efficiency spiral tube heat exchanger structure includes a spiral tube heat exchanger body 1. A heat medium inlet 2 is fixedly connected to the left side of the spiral tube heat exchanger body 1, and a heat medium outlet 3 is fixedly connected to the right side of the spiral tube heat exchanger body 1. A refrigerant inlet 4 and a refrigerant outlet 5 are also fixedly connected to the outer wall of the spiral tube heat exchanger body 1. A filter mechanism 6 is fixedly connected to the heat medium inlet 2, and the filter mechanism 6 includes a filter box 7, an inner frame 11, a sealing box cover 12, and a filter screen. 16. Limiting plate 20, spring 23, and second handle 24. The inner frame 11 is fixedly connected to the filter box 7, and the filter screen 16 is fixedly connected to the inner frame 11 through the inserts 17 on both sides. The limiting plate 20 is movably connected to the side plates 18 on both sides of the top surface of the sealing box cover 12 through the guide rod 22 on the inner side wall. The spring 23 is sleeved on the outside of the guide rod 22. The second handle 24 is fixedly connected between the guide rods 22. The sealing box cover 12 is fixedly connected to the top surface of the filter box 7 through the limiting plate 20.

[0024] like Figure 2 As shown, an inlet 8 is fixedly installed on the left side of the filter box 7, and an outlet 9 is fixedly installed on the right side of the filter box 7. The outlet 9 is fixedly installed together with the heat medium inlet 2. A set of symmetrical limiting protrusions 10 are also fixedly installed on the two side walls of the filter box 7. The filter box 7 is the main container for heat medium filtration. The heat medium enters the filter box 7 through the inlet 8, and after impurities are filtered in the box, it flows out through the outlet 9 to the heat medium inlet 2 and enters the spiral tube heat exchanger body 1 for heat exchange. The limiting protrusions 10 on both sides cooperate with the limiting plate 20 to fix the sealing box cover 12 and ensure that the heat medium will not leak during the filtration process.

[0025] like Figure 2 and 3 As shown, the inner frame 11 is placed inside the filter box 7. The inner frame 11 is used to collect the filtered impurities. The two side walls of the inner frame 11 are respectively provided with through holes 13. The through holes 13 can ensure that the heat medium enters the inner frame 11 and is filtered by the filter screen 16. A set of symmetrical slots 14 are provided on the right side of the inner wall of the inner frame 11. The slots 14 are used to cooperate with the insert strip 17 to realize the positioning and insertion of the filter screen 16. The top surface of the inner frame 11 is also fixedly installed with a first handle 15. The inner frame 11 can be lifted out of the filter box 7 through the first handle 15.

[0026] like Figure 3 As shown, inserts 17 are fixedly installed on both sides of the filter screen 16, and the inserts 17 are inserted into the slots 14. After the inserts 17 are inserted into the slots 14, the filter screen 16 can be installed into the inner frame 11, and impurities in the heat medium can be filtered through the filter screen 16.

[0027] like Figure 2 and 4 As shown, a set of symmetrical side plates 18 are fixedly installed on the top surface of the sealing box cover 12, and a set of symmetrical guide holes 19 are provided on the side wall of the side plate 18. The guide holes 19 are used to cooperate with the guide rod 22 to achieve the guiding function.

[0028] like Figure 4 As shown, the side wall of the limiting plate 20 is provided with a limiting hole 21 corresponding to the limiting protrusion 10, and the limiting protrusion 10 is inserted into the limiting hole 21. A set of symmetrical guide rods 22 are fixedly installed on the inner side wall of the limiting plate 20, and the guide rods 22 are inserted into the guide hole 19. The second handle 24 is fixedly installed between the symmetrical guide rods 22, and the spring 23 is sleeved on the outside of the guide rods 22 and fixedly installed between the second handle 24 and the opposite wall of the limiting plate 20. After pushing the second handle 24 to make the guide rod 22 pass through the guide hole 19 and force the spring 23 to perform a contraction operation, the limiting protrusion 10 can be moved out from the limiting hole 21 opened on the side wall of the limiting plate 20, so as to quickly open the filter box 7 to clean the impurities and filter screen 16.

[0029] The specific operating principle of the filter mechanism 6 in conjunction with the spiral tube heat exchanger body 1 is as follows:

[0030] The heat medium first enters the interior of the filter box 7 through the inlet 8 on the left side of the filter box 7. The heat medium entering the filter box 7 then enters the inner frame 11 placed inside the filter box 7 through the through hole 13. When the heat medium enters the inner frame 11 and exits through the outlet 9 on the right side of the filter box 7, the filter screen 16 installed in the inner frame 11 will intercept and filter the impurities in the heat medium and filter them in the inner frame 11. After filtration, the heat medium will enter the heat medium inlet 2 through the outlet 9 and enter the spiral tube inside the spiral tube heat exchanger body 1 from the heat medium inlet 2. When the heat medium flows in the spiral tube, the cold medium entering the spiral tube heat exchanger body 1 through the cold medium inlet 4 will exchange heat with the heat medium in the spiral tube. After absorbing heat, the cold medium will be discharged from the cold medium outlet 5. Since the impurities in the heat medium are filtered, these impurities can be effectively removed and their deposition on the spiral tube wall can be reduced, so the heat transfer effect and heat exchange efficiency of the spiral tube heat exchanger body 1 can be improved.

[0031] When it is necessary to clean the filtered impurities and filter screen 16, push the second handles 24 located on both sides above the sealing cover 12 in the opposite direction. The second handles 24 push the guide rod 22 through the guide hole 19 opened on the side wall of the side plate 18, and force the spring 23 fitted outside the guide rod 22 to tighten, causing the limiting plate 20 to move outward, so that the limiting protrusions 10 installed on both sides of the filter box 7 move out of the limiting hole 21 opened on the side wall of the limiting plate 20. Keep the pushing force on the second handle 24 unchanged, and move the sealing cover 12 upward to open the sealing cover 12 from the filter box 7. Then, use the first handle 15 to remove the inner frame 11 to take out the inside of the filter box 7, and remove the contents of the inner frame 11. After the impurities filtered by the filter screen 16 are poured out and cleaned, the filter screen 16 is pushed upwards so that the inserts 17 on both sides of the filter screen 16 are removed from the slots 14 opened on the inner wall of the inner frame 11. The filter screen 16 can then be disassembled for cleaning or replacement, thereby facilitating cleaning and maintenance, reducing cleaning time and labor intensity, and improving the maintainability and efficiency of the equipment. At the same time, by cleaning the filter impurities and maintaining the filter screen 16 in a timely and effective manner, wear and corrosion of the spiral tube by impurities can be avoided, reducing problems such as poor fluid flow caused by impurity accumulation, extending the service life of the spiral tube heat exchanger body 1, reducing the maintenance and replacement costs of the equipment, and improving the stability and reliability of the equipment operation.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-efficiency spiral tube heat exchanger structure, comprising a spiral tube heat exchanger body (1), wherein a heat medium inlet (2) is fixedly connected to the left side of the spiral tube heat exchanger body (1), and a heat medium outlet (3) is fixedly connected to the right side of the spiral tube heat exchanger body (1), and a refrigerant inlet (4) and a refrigerant outlet (5) are also fixedly connected to the outer wall of the spiral tube heat exchanger body (1), characterized in that: A filter mechanism (6) is fixedly connected to the heat medium inlet (2), and the filter mechanism (6) includes a filter box (7), an inner frame (11), a sealing box cover (12), a filter screen (16), a limiting plate (20), a spring (23), and a second handle (24). The inner frame (11) is fixedly connected inside the filter box (7), and the filter screen (16) is fixedly connected inside the inner frame (11) through the inserts (17) on both sides. The limiting plate (20) is movably connected to the side plates (18) on both sides of the top surface of the sealing box cover (12) through the guide rod (22) on the inner side wall, and the spring (23) is sleeved outside the guide rod (22). The second handle (24) is fixedly connected between the guide rods (22), and the sealing box cover (12) is fixedly connected to the top surface of the filter box (7) through the limiting plate (20).

2. A high efficiency spiral tube heat exchanger structure according to claim 1, characterized in that: An inlet (8) is fixedly installed on the left side of the filter box (7), and an outlet (9) is fixedly installed on the right side of the filter box (7). The outlet (9) is fixedly installed together with the heat medium inlet (2). A set of symmetrical limiting protrusions (10) are also fixedly installed on the two side walls of the filter box (7).

3. The structure of the high-efficiency spiral tube heat exchanger according to claim 2, characterized in that: The inner frame (11) is placed inside the filter box (7), and through holes (13) are opened on both sides of the inner frame (11). A set of symmetrical slots (14) are opened on the right side of the inner wall of the inner frame (11), and a first handle (15) is fixedly installed on the top surface of the inner frame (11).

4. The high-efficiency spiral tube heat exchanger structure according to claim 3, characterized in that: Inserts (17) are fixedly installed on both sides of the filter screen (16), and the inserts (17) are inserted into the slots (14).

5. The high-efficiency spiral tube heat exchanger structure according to claim 4, characterized in that: A set of symmetrical side plates (18) are fixedly installed on the top surface of the sealing box cover (12), and a set of symmetrical guide holes (19) are opened on the side wall of the side plate (18).

6. A high efficiency spiral tube heat exchanger structure according to claim 5, characterized in that: The side wall of the limiting plate (20) is provided with a limiting hole (21) corresponding to the limiting protrusion (10), and the limiting protrusion (10) is inserted into the limiting hole (21). A set of symmetrical guide rods (22) are fixedly installed on the inner side wall of the limiting plate (20), and the guide rods (22) are inserted into the guide hole (19). The second handle (24) is fixedly installed between the symmetrical guide rods (22), and the spring (23) is sleeved on the outside of the guide rod (22) and fixedly installed between the second handle (24) and the opposite wall of the limiting plate (20).

Images