A heat exchanger system
By introducing a cleaning mechanism consisting of rotating blocks, blades, and scrapers into the heat exchanger, scale is removed using water flow dynamics, thus solving the problem of scale adhesion in the heat exchanger and improving heat exchange efficiency and ease of cleaning.
Patent Information
- Application Number
- CN202310969790.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-08-03
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2043-08-03
AI Technical Summary
During the use of a heat exchanger, calcium, magnesium and other salts in the water form insoluble substances that adhere to the surface of the heat exchange tubes, resulting in decreased heat exchange efficiency, energy waste and poor applicability.
A cleaning mechanism including a rotating block, blades, a reciprocating screw, and a scraper is designed. The rotating block is driven to rotate by the impact of water flow on the blades, which in turn drives the reciprocating screw and scraper to move and remove scale from the surface of the heat exchange tube. A moving block and a box are also provided for easy cleaning.
It effectively prevents scale buildup on the surface of heat exchange tubes, improves heat exchange efficiency, and reduces interference with the system through convenient cleaning methods, thus improving applicability.
Smart Images

Figure CN116772621B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of heat exchanger technology, and in particular to a heat exchanger system. Background Technology
[0002] A heat exchanger is an energy-saving device that facilitates heat transfer between two or more fluids at different temperatures. It transfers heat from a higher-temperature fluid to a lower-temperature fluid, bringing the fluid temperature to the specified parameters to meet process requirements. It is also a key component for improving energy efficiency. The heat exchanger industry involves nearly 30 sectors, including HVAC, pressure vessels, wastewater treatment equipment, chemicals, and petroleum, forming interconnected industrial chains. During heat exchange, when the water contains salts such as calcium and magnesium, a chemical reaction occurs at a certain temperature, producing insoluble substances that adhere to the surface of the heat exchange tubes. Over time, this buildup accumulates, severely hindering the heat exchange efficiency and leading to energy waste and poor applicability. Summary of the Invention
[0003] To address the problems mentioned in the background art, this application provides a heat exchanger system.
[0004] A heat exchanger system includes a tank, with hot water pipes fixedly connected to both sides of the tank. A heat exchange tube is fixedly connected to the opposite side of the two hot water pipes. An outlet pipe is fixedly connected to the upper left side of the tank, and an inlet pipe is fixedly connected to the lower right side of the tank. A cleaning mechanism is provided inside the tank, including a rotating block rotatably connected to the side wall of the right-side hot water pipe. Blades are uniformly fixedly connected to the outer side of the rotating block. A sliding groove is formed on the upper inner wall of the tank, and a reciprocating screw is rotatably connected inside the sliding groove. A screw nut is engaged with the rod wall of the reciprocating screw, and a scraper is fixedly connected to the lower end of the screw nut. The scraper is slidably connected to the rod wall of the heat exchange tube. The rotating block and the reciprocating screw are rotatably connected by a belt.
[0005] Preferably, the lower end of the tank is fixedly connected to a shell, the left side of the shell has a cavity, a movable block is slidably connected inside the cavity, a spring is fixedly connected to the left side of the movable block, the lower end of the movable block is inclined, and a box is slidably connected inside the shell.
[0006] Preferably, a one-way bearing is fixedly connected to the right side of the reciprocating lead screw, and a rotating rod is fixedly connected to the inner ring of the one-way bearing.
[0007] Preferably, the water inlet pipe is located tangentially to the right side of the tank.
[0008] Preferably, the upper length of the moving block is greater than the upper cross-sectional length of the box.
[0009] Preferably, the groove length of the reciprocating lead screw is the same as the distance between the two hot water pipes.
[0010] In summary, this application includes the following beneficial technical effects:
[0011] 1. The water flow impacts the blades, causing the rotating block to rotate. The rotating block drives the reciprocating screw to rotate via a belt, which in turn causes the screw nut to move left and right inside the sliding groove. The scraper moves against the surface of the heat exchange tube, preventing scale from forming and accumulating on the surface of the heat exchange tube, thus improving heat exchange efficiency.
[0012] 2. By using a movable block, when the box is disassembled for cleaning, the movable block returns to its original position under the action of a spring, thereby sealing the lower end of the tank. After cleaning, the box can be inserted again. This eliminates the need to drain the water from inside the tank to clean it, thus improving the applicability of the device. Attached Figure Description
[0013] Figure 1 This is a front structural diagram of an embodiment of the application.
[0014] Figure 2 This is a cross-sectional structural diagram of an embodiment of the application.
[0015] Figure 3 yes Figure 2 Enlarged structural diagram at point A in the middle.
[0016] Figure 4 yes Figure 2 Enlarged structural diagram at point B.
[0017] Explanation of reference numerals in the attached drawings: 1. Tank body; 2. Hot water pipe; 3. Box body; 4. Outlet pipe; 5. Belt; 6. Rotary block; 7. Blade; 8. Inlet pipe; 9. Heat exchanger pipe; 10. Scraper; 11. Slide groove; 12. Reciprocating lead screw; 13. One-way bearing; 14. Rotating rod; 15. Lead screw nut; 16. Shell; 17. Spring; 18. Moving block. Detailed Implementation
[0018] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.
[0019] This application discloses a heat exchanger system, referring to... Figure 1-4 The tank includes a tank body 1, with hot water pipes 2 fixedly connected to both sides of the tank body 1. A heat exchange pipe 9 is fixedly connected to the opposite side of the two hot water pipes 2. Multiple heat exchange pipes 9 are provided to improve the efficiency of heat exchange. A water outlet pipe 4 is fixedly connected to the upper left side of the tank body 1, and a water inlet pipe 8 is fixedly connected to the lower right side of the tank body 1. Water is introduced into the water inlet pipe 8, which is located at the lower end, while the water outlet pipe 4 is located at the upper end for drainage. A cleaning mechanism is provided inside the tank body 1.
[0020] The cleaning mechanism includes a rotating block 6, which is rotatably connected to the side wall of the right-side hot water pipe 2. Blades 7 are evenly fixedly connected to the outer side of the rotating block 6. Water is introduced through the inlet pipe 8, and the water flow impacts the blades 7, causing the rotating block 6 to rotate. A sliding groove 11 is provided on the upper inner wall of the tank body 1. A reciprocating screw 12 is rotatably connected inside the sliding groove 11. A screw nut 15 is engaged with the rod wall of the reciprocating screw 12. A scraper 10 is fixedly connected to the lower end of the screw nut 15. The scraper 10 is slidably connected to the rod wall of the heat exchange tube 9. The rotating block 6 and the reciprocating screw 12 are rotatably connected through a belt 5. The rotating block 6 drives the reciprocating screw 12 to rotate through the belt 5. The reciprocating screw 12 causes the screw nut 15 to move left and right inside the sliding groove 11. The screw nut 15 drives the scraper 10 to move left and right, thereby preventing scale from forming and accumulating on the surface of the heat exchange tube 9 and ensuring the heat exchange efficiency of the heat exchange tube 9.
[0021] like Figure 4 As shown, a shell 16 is fixedly connected to the lower end of the tank 1. A cavity is opened on the left side inside the shell 16. A moving block 18 is slidably connected inside the cavity. A spring 17 is fixedly connected to the left side of the moving block 18. The lower end of the moving block 18 is inclined. A box 3 is slidably connected inside the shell 16. The box 3 can collect the dirt inside. When cleaning the dirt, the box 3 is pulled out. At this time, the moving block 18 moves to seal the lower end of the tank 1 to prevent the water inside from flowing out. After cleaning is completed, the box 3 can be inserted again.
[0022] like Figure 3 As shown, a one-way bearing 13 is fixedly connected to the right side of the reciprocating screw 12, and a rotating rod 14 is fixedly connected to the inner ring of the one-way bearing 13. When the reciprocating screw 12 jams, the rotating rod 14 is rotated to drive the reciprocating screw 12 to rotate in the opposite direction. The one-way bearing 13 is in an active state when the blade 7 drives the reciprocating screw 12 to rotate, and does not drive the rotating rod 14 to rotate. Only when the rotation direction of the rotating rod 14 is opposite to the rotation direction of the reciprocating screw 12, the one-way bearing 13 is locked, and then drives the reciprocating screw 12 to rotate.
[0023] like Figure 2 As shown, the water inlet pipe 8 is located on the right side of the tank 1 in a tangential position. Setting the water inlet pipe 8 in a tangential position can better impact the blade 7, causing the blade 7 to drive the rotating block 6 to rotate.
[0024] like Figure 4 As shown, the upper length of the movable block 18 is greater than the upper cross-sectional length of the box 3. The length of the movable block 18 is sufficient to seal the lower end of the tank 1, preventing water from flowing out.
[0025] like Figure 2As shown, the groove length of the reciprocating screw 12 is the same as the distance between the two hot water pipes 2, ensuring that the scraper 10 always moves outside the heat exchange tube 9.
[0026] The implementation principle of a heat exchanger system in this application embodiment is as follows: During heat exchange, hot water with a certain temperature is introduced into the tank 1 through the hot water pipe 2, and then through the heat exchange tube 9. Clean water is introduced through the inlet pipe 8 on the right side and discharged through the outlet pipe 4. When cold water passes through the heat exchange tube 9, heat transfer drives the heat. At this time, the water flow entering through the inlet pipe 8 impacts the blades 7 to rotate. The blades 7 drive the rotating block 6 to rotate. The rotating block 6 drives the reciprocating screw 12 to rotate through the belt 5. The rotation of the reciprocating screw 12 causes the screw nut 15 to move left and right inside the slide groove 11. The screw nut 15 drives the scraper 10 to move left and right. This can prevent the formation of dirt on the surface of the heat exchange tube 9 and ensure the heat exchange efficiency of the heat exchange tube 9.
[0027] Furthermore, when the dirt settles into the container 3 via the movable block 18, the container 3 is pulled out. Under the action of the spring 17, the movable block 18 is moved, thereby sealing the lower end of the container 1. After cleaning, the container 3 can be inserted. This way, it is not necessary to drain the water inside the container 1 during cleaning, thus improving its applicability.
[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A heat exchanger system comprising a tank body (1), characterised in that: Both sides of the tank body (1) are fixedly connected with hot water pipes (2), and opposite sides of the two hot water pipes (2) are fixedly connected with heat exchange pipes (9) in common, the left upper end of the tank body (1) is fixedly connected with a water outlet pipe (4), the right lower end of the tank body (1) is fixedly connected with a water inlet pipe (8), and the inside of the tank body (1) is provided with a cleaning mechanism. The cleaning mechanism comprises a rotating block (6), the rotating block (6) is rotatably connected with the side wall of the right hot water pipe (2), the outer side of the rotating block (6) is uniformly fixedly connected with a blade (7), the upper end of the inner wall of the tank body (1) is provided with a sliding groove (11), the inside of the sliding groove (11) is rotatably connected with a reciprocating screw rod (12), the rod wall of the reciprocating screw rod (12) is meshedly connected with a screw rod nut (15), the lower end of the screw rod nut (15) is fixedly connected with a scraper (10), the scraper (10) is slidably connected with the rod wall of the heat exchange pipe (9), and the rotating block (6) and the reciprocating screw rod (12) are rotatably connected through a belt (5).
2. The heat exchanger system of claim 1, wherein: The lower end of the tank body (1) is fixedly connected with a shell (16), the left side of the inside of the shell (16) is provided with a cavity, the inside of the cavity is slidably connected with a moving block (18), the left side of the moving block (18) is fixedly connected with a spring (17), and the lower end of the moving block (18) is inclinedly arranged, and the inside of the shell (16) is slidably connected with a box body (3).
3. The heat exchanger system of claim 1, wherein: The right side of the reciprocating screw rod (12) is fixedly connected with a one-way bearing (13), and the inner ring of the one-way bearing (13) is fixedly connected with a rotating rod (14).
4. The heat exchanger system of claim 1, wherein: The water inlet pipe (8) is located at the tangential position of the right side of the tank body (1).
5. The heat exchanger system of claim 2, wherein: The upper end length of the moving block (18) is greater than the upper end cross length of the box body (3).
6. The heat exchanger system of claim 2, wherein: The notch length of the reciprocating screw rod (12) is the same as the spacing of the two hot water pipes (2).
Citation Information
Patent Citations
Waste heat recovery system of water chilling unit
CN114251959A