Heat exchanger
By using vertically distributed risers and serpentine channels, combined with the use of partition components and sealing gaskets, the problem of dirt accumulation on the inner wall of the heat exchanger is solved, achieving convenient and efficient cleaning and sealing, and improving heat exchange efficiency.
Patent Information
- Application Number
- CN202423159033.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-20
AI Technical Summary
After prolonged use, existing heat exchangers accumulate a large amount of dirt on the inner wall of the heat exchange tubes, resulting in reduced heat transfer efficiency. Furthermore, existing cleaning methods are cumbersome and ineffective.
A vertically distributed vertical pipe structure with an internal serpentine channel was designed. The vertical pipe, lower horizontal pipe and upper horizontal pipe can be disassembled independently through the separation component, which facilitates fixed-point cleaning. Combined with sealing gaskets and welded connections, the airtightness is ensured to avoid heat loss.
It achieves convenient and efficient cleaning, improves heat transfer efficiency, and ensures the sealing performance and thermal energy utilization of the heat exchanger.
Smart Images
Figure CN223623441U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat exchanger technology, and specifically to a heat exchanger. Background Technology
[0002] Thermal power plants are complete sets of thermal power equipment that convert thermal energy into mechanical energy to generate prime movers. The sources of thermal energy include the heat released from the combustion of fuels such as coal, oil, natural gas, oil shale, and biomass, as well as nuclear energy, solar energy, and geothermal energy. Thermal power plants include steam turbine power plants, internal combustion engine power plants, gas turbine power plants, and nuclear power plants. They are mainly composed of prime movers (steam turbines, internal combustion engines, and gas turbines) and their auxiliary equipment. Thermal power generation uses the prime movers generated by thermal power plants to drive generators to produce electrical energy.
[0003] Compared to existing heat exchangers, the following drawbacks exist: After prolonged use, a large amount of dirt will accumulate on the inner wall of the heat exchange tubes. As the amount of dirt increases, the heat transfer efficiency of the heat exchanger will be significantly reduced. Generally, the heat exchange tubes are disassembled and cleaned. However, existing heat exchangers have many bends, making cleaning troublesome and ineffective, and it is difficult to effectively remove the dirt adhering to the inner wall of the tubes. Utility Model Content
[0004] The purpose of this utility model is to provide a heat exchanger that solves the following technical problem: After long-term use, a large amount of dirt will be generated on the inner wall of the heat exchange tube. As the amount of dirt increases, the heat transfer effect of the heat exchanger will be greatly reduced. Generally, the heat exchange tube is disassembled and cleaned. However, existing heat exchangers have many bends, making cleaning troublesome and the cleaning effect poor, making it difficult to effectively remove the dirt attached to the inner wall of the tube.
[0005] The objective of this utility model can be achieved through the following technical solutions:
[0006] A type of heat exchanger, with a vertical pipe;
[0007] Multiple vertical pipes are distributed vertically. An upper horizontal pipe and a lower horizontal pipe are respectively provided at the upper and lower ends of the vertical pipes. A flanged short pipe is provided on the outer side of both the lower horizontal pipe and the upper horizontal pipe. A first blind plate is provided at the outer end of the flanged short pipe. A partition component is provided on the inner side of both the lower horizontal pipe and the upper horizontal pipe.
[0008] The inner sides of the vertical pipe, lower horizontal pipe and upper horizontal pipe are evenly distributed with serpentine channels. The other end of the lower horizontal pipe and upper horizontal pipe is provided with a second blind plate. The second blind plate is connected to one end of the connecting rod. The outer sides of the vertical pipe, lower horizontal pipe and upper horizontal pipe are provided with heat exchange boxes. The upper and lower sides of the heat exchange boxes are respectively provided with water inlets and water outlets.
[0009] As a further embodiment of this utility model: the partition assembly consists of a second blind plate, a connecting rod, a partition plate, a sealing ring, and a fixing handle;
[0010] The second blind plate has a connecting rod at its inner end and a partition plate at its outer side. Both ends of the partition plate have sealing rings on their outer surfaces, and the second blind plate has a fixing handle at its outer end.
[0011] As a further embodiment of this utility model: the partition plate is a flat circular plate structure, and the partition plate is clearance-fitted with the lower horizontal tube and the upper horizontal tube.
[0012] As a further embodiment of this utility model: the partition plates are arranged in multiple groups and installed at intervals on the outside of the connecting rod, and the sealing ring is interference-fitted with the lower horizontal tube and the upper horizontal tube.
[0013] As a further embodiment of this utility model: the connecting rod is a link structure and there are two of them, which are symmetrically arranged along the center line of the partition plate, and the vertical distance between the connecting rods is not less than the inner diameter of the vertical pipe.
[0014] As a further embodiment of this utility model: the inlet and outlet of the serpentine channel are one end port of the lower horizontal pipe and the upper horizontal pipe, respectively.
[0015] As a further embodiment of this utility model: a sealing gasket is provided at the connection between the first blind plate and the flange short pipe, a flange is welded to one end of the lower horizontal pipe and the upper horizontal pipe, and a sealing gasket is provided at the connection between the flange welded on the lower horizontal pipe and the upper horizontal pipe and the second blind plate.
[0016] As a further embodiment of this utility model: through holes adapted to connect flange short pipes are provided on the upper and lower end faces of the heat exchange box, and through holes adapted to connect lower horizontal pipes and upper horizontal pipes are provided on both the left and right ends of the heat exchange box. The lower horizontal pipe, upper horizontal pipe and flange short pipe are all connected to the heat exchange box by welding.
[0017] The beneficial effects of this utility model are:
[0018] 1. By independently disassembling and installing the partition components, the vertical pipe, lower horizontal pipe, and upper horizontal pipe can be cleaned at specific points to improve the cleaning effect and avoid overall disassembly, which would affect the subsequent use. In conjunction with the sealing gaskets installed between the flanges welded on the lower and upper horizontal pipes and the second blind plate, as well as the sealing gaskets installed between the flange short pipe and the first blind plate, the airtightness of the heat exchange box is ensured, preventing heat loss. Attached Figure Description
[0019] The present invention will be further described below with reference to the accompanying drawings.
[0020] Figure 1This is a front view cross-sectional structural diagram of the present invention;
[0021] Figure 2 This is a schematic diagram of the overall structure of the connection between the partition component and the heat exchange box of this utility model;
[0022] Figure 3 This is a schematic diagram of the overall structure of the connection between the vertical tube and the lower horizontal tube of this utility model;
[0023] Figure 4 This is a schematic diagram of the overall structure of the connection between the second blind plate and the fixed handle of this utility model.
[0024] In the diagram: 100, serpentine channel; 1, vertical pipe; 2, lower horizontal pipe; 3, upper horizontal pipe; 4, flange short pipe; 5, first blind flange; 6, partition assembly; 61, second blind flange; 62, connecting rod; 63, partition plate; 64, sealing ring; 65, fixed handle; 7, heat exchanger body; 71, water inlet; 72, water outlet. Detailed Implementation
[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0026] Example 1
[0027] Please see Figures 1-4 As shown, this utility model is a heat exchanger. Specifically, to avoid the accumulation of a large amount of dirt inside the tubes after prolonged use and to facilitate disassembly and cleaning, it includes a serpentine channel 100 evenly distributed on the inner side of a vertical tube 1, a lower horizontal tube 2, and an upper horizontal tube 3. A second blind plate 61 is provided at the other end of the lower horizontal tube 2 and the upper horizontal tube 3. One end of the connecting rod 62 of the second blind plate 61 is connected to the heat exchange box 7 on the outer side of the vertical tube 1, the lower horizontal tube 2, and the upper horizontal tube 3. A water inlet 71 and a water outlet 72 are respectively provided on the upper and lower sides of the heat exchange box 7.
[0028] In this embodiment, preferably, the partition assembly 6 consists of a second blind plate 61, a connecting rod 62, a partition plate 63, a sealing ring 64, and a fixing handle 65. The inner end of the second blind plate 61 is provided with the connecting rod 62, and the outer side of the connecting rod 62 is provided with the partition plate 63. The outer surfaces of both ends of the partition plate 63 are provided with sealing rings 64, and the outer end of the second blind plate 61 is provided with a fixing handle 65. The partition plate 63 is a flat circular plate structure. The partition plate 63 is clearance-fitted with the lower horizontal tube 2 and the upper horizontal tube 3. The partition plate 63 can slide smoothly in the lower horizontal tube 2 and the upper horizontal tube 3, thereby facilitating the insertion of the partition assembly 6 into the lower horizontal tube 2 and the upper horizontal tube 3.
[0029] In this embodiment, preferably, the partition plates 63 are arranged in multiple groups and installed at intervals on the outside of the connecting rod 62. The sealing ring 64 is interference-fitted with the lower horizontal pipe 2 and the upper horizontal pipe 3. Under the action of the partition plates 63, the heat medium can be prevented from flowing directly in the lower horizontal pipe 2 and the upper horizontal pipe 3 without passing through the vertical pipe 1, thus affecting the heat exchange effect.
[0030] In this embodiment, preferably, the connecting rod 62 is a connecting rod structure and there are two of them, which are symmetrically arranged along the center line of the partition plate 63. The vertical distance between the connecting rods 62 is not less than the inner diameter of the vertical pipe 1. This allows the operator to clean the vertical pipe 1 without disassembling the partition component 6, and directly brush the vertical pipe 1 through the partition component 6.
[0031] In this embodiment, preferably, the inlet and outlet of the serpentine channel 100 are one end of the lower horizontal pipe 2 and the upper horizontal pipe 3, respectively, so that the heat medium can fully achieve heat exchange during the flow of the heat medium in the serpentine channel 100.
[0032] In summary, the heat transfer medium enters from the end of the lower horizontal pipe 2 that is not connected to the second blind flange 61. It is then blocked by the partition plate 63, flows upward through the first vertical pipe 1, and subsequently enters the interior of the upper horizontal pipe 3. As it flows forward, it continues to be blocked by the partition plate 63, and then flows downward through the second vertical pipe 1. This process repeats itself, flowing through the serpentine channels 100 formed within the vertical pipes 1, lower horizontal pipe 2, and upper horizontal pipe 3 separated by multiple partition plates 63, and finally exits. Afterward, the liquid level rises and it is discharged through the outlet 72. During the flow of the heat exchange medium in the heat exchange box 7, it makes full contact with the surfaces of the vertical pipe 1, the lower horizontal pipe 2, and the upper horizontal pipe 3 to achieve heat exchange. When cleaning the inner walls of the vertical pipe 1, the lower horizontal pipe 2, and the upper horizontal pipe 3, the bolts connecting the short flange pipe 4 and the first blind plate 5 are removed, the first blind plate 5 is removed, the bolts connecting the second blind plate 61 and the lower horizontal pipe 2 and the upper horizontal pipe 3 are removed, and the partition assembly 6 is removed. Then, a long brush can be inserted into the interior of the vertical pipe 1, the lower horizontal pipe 2, and the upper horizontal pipe 3 to perform efficient brushing of the inner walls.
[0033] Example 2
[0034] Reference Figures 1-4The image shows the second embodiment of this utility model, specifically designed to ensure the airtightness of the heat exchange box 7, including a vertical pipe 1; multiple vertical pipes 1 are vertically distributed, with an upper horizontal pipe 3 and a lower horizontal pipe 2 respectively provided at the upper and lower ends of the vertical pipe 1, and a flange short pipe 4 provided on the outer side of both the lower horizontal pipe 2 and the upper horizontal pipe 3, with a first blind plate 5 provided at the outer end of the flange short pipe 4, and a partition component 6 provided on the inner side of both the lower horizontal pipe 2 and the upper horizontal pipe 3.
[0035] In this embodiment, preferably, a sealing gasket is provided at the connection between the first blind plate 5 and the flange short pipe 4, and a flange is welded to one end of the lower horizontal pipe 2 and the upper horizontal pipe 3. A sealing gasket is provided at the connection between the flange welded to the lower horizontal pipe 2 and the upper horizontal pipe 3 and the second blind plate 61. With the setting of the sealing gasket, the sealing performance of the first blind plate 5 and the second blind plate 61 to the flange short pipe 4, the lower horizontal pipe 2 and the upper horizontal pipe 3 can be effectively guaranteed.
[0036] In this embodiment, preferably, the upper and lower end faces of the heat exchange box 7 are provided with through holes adapted to connect the flange short pipe 4, and the left and right ends of the heat exchange box 7 are provided with through holes adapted to connect the lower horizontal pipe 2 and the upper horizontal pipe 3. The lower horizontal pipe 2, the upper horizontal pipe 3 and the flange short pipe 4 are all connected to the heat exchange box 7 by welding. The connection by welding ensures the sealing of the heat exchange box 7.
[0037] In summary, the sealing gaskets installed between the flanges welded on the lower horizontal pipe 2 and the upper horizontal pipe 3 and the second blind plate 61 can effectively ensure the sealing performance of the first blind plate 5 and the second blind plate 61 to the flange short pipe 4, the lower horizontal pipe 2 and the upper horizontal pipe 3, and ensure the overall sealing performance of the heat exchange box 7 through welding connection, avoiding heat loss and the problem of poor heat exchange effect.
[0038] Example 3
[0039] This embodiment is obtained by combining Embodiment 1 and Embodiment 2.
[0040] The above-mentioned independent insertion and tightening of the brush not only allows for targeted and individual brushing and cleaning, but also increases the sealing performance and prevents heat loss.
[0041] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.
Claims
1. A heat exchanger, characterized in that, include; Vertical pipe (1); Multiple vertical pipes (1) are vertically distributed. An upper horizontal pipe (3) and a lower horizontal pipe (2) are respectively provided at the upper and lower ends of the vertical pipe (1). A flanged short pipe (4) is provided on the outer side of both the lower horizontal pipe (2) and the upper horizontal pipe (3). A first blind plate (5) is provided at the outer end of the flanged short pipe (4). A partition component (6) is provided on the inner side of both the lower horizontal pipe (2) and the upper horizontal pipe (3). The inner sides of the vertical pipe (1), lower horizontal pipe (2) and upper horizontal pipe (3) are evenly distributed with serpentine channels (100). The other end of the lower horizontal pipe (2) and upper horizontal pipe (3) is provided with a second blind plate (61). The second blind plate (61) is connected to one end of the connecting rod (62). The outer side of the vertical pipe (1), lower horizontal pipe (2) and upper horizontal pipe (3) is provided with a heat exchange box (7). The upper and lower sides of the heat exchange box (7) are respectively provided with an inlet (71) and an outlet (72).
2. A heat exchanger according to claim 1, characterized in that, The partition assembly (6) consists of a second blind plate (61), a connecting rod (62), a partition plate (63), a sealing ring (64), and a fixing handle (65); The inner end of the second blind plate (61) is provided with a connecting rod (62), the outer side of the connecting rod (62) is provided with a partition plate (63), the outer surfaces of the left and right ends of the partition plate (63) are provided with sealing rings (64), and the outer end of the second blind plate (61) is provided with a fixing handle (65).
3. A heat exchanger according to claim 2, characterized in that, The partition plate (63) is a flat circular plate structure, and the partition plate (63) is clearance-fitted with the lower horizontal tube (2) and the upper horizontal tube (3).
4. A heat exchanger according to claim 2, characterized in that, The partition plates (63) are arranged in multiple groups and installed at intervals on the outside of the connecting rod (62), and the sealing ring (64) is interference-fitted with the lower horizontal tube (2) and the upper horizontal tube (3).
5. A heat exchanger according to claim 2, characterized in that, The connecting rod (62) is a connecting rod structure and there are two of them, which are symmetrically arranged along the center line of the partition plate (63). The vertical distance between the connecting rods (62) is not less than the inner diameter of the vertical pipe (1).
6. A heat exchanger according to claim 1, characterized in that, The inlet and outlet of the serpentine channel (100) are one end of the lower horizontal pipe (2) and the upper horizontal pipe (3), respectively.
7. A heat exchanger according to claim 1, characterized in that, A sealing gasket is provided at the connection between the first blind plate (5) and the flange short pipe (4). A flange is welded to one end of the lower horizontal pipe (2) and the upper horizontal pipe (3). A sealing gasket is provided at the connection between the flange welded to the lower horizontal pipe (2) and the upper horizontal pipe (3) and the second blind plate (61).
8. A heat exchanger according to claim 1, characterized in that, The heat exchange box (7) has through holes on its upper and lower end faces for connecting flange short pipes (4). The heat exchange box (7) has through holes on its left and right ends for connecting lower horizontal pipes (2) and upper horizontal pipes (3). The lower horizontal pipe (2), upper horizontal pipe (3) and flange short pipes (4) are all connected to the heat exchange box (7) by welding.