A kind of condenser waste heat recovery stainless steel heat exchange tube for laser water chiller
By installing stainless steel heat exchange tubes and protective structures in the condenser of the laser chiller, the problems of large condenser space occupation and low thermal coupling efficiency are solved, achieving efficient waste heat recovery and improved equipment stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU JIZHI ELECTROMECHANICAL CO LTD
- Filing Date
- 2025-12-03
- Publication Date
- 2026-07-03
AI Technical Summary
Existing laser chiller condenser waste heat recovery devices occupy a large amount of equipment space, have low thermal coupling efficiency, and their open heat dissipation structure is easily clogged by dust, affecting their service life.
Design a stainless steel heat exchange tube for waste heat recovery in a laser chiller condenser. By setting the heat exchange tube between the condenser tube and the fan, waste heat is absorbed by the room temperature water path. When not in use, a protective structure prevents dust from entering, simplifying equipment modifications and reducing wear on mechanical parts.
It improves waste heat recovery efficiency, reduces equipment power consumption, extends equipment life, simplifies the retrofit process, and enhances system stability and adaptability.
Smart Images
Figure CN224458926U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of laser chiller technology, specifically relating to a stainless steel heat exchange tube for condenser waste heat recovery in laser chillers. Background Technology
[0002] Laser chillers are industrial refrigeration devices specifically designed for cooling laser equipment. They primarily serve the circulating water cooling and temperature control of devices such as ultraviolet lasers, CO2 laser tubes, semiconductor lasers, and fiber lasers. By stabilizing the operating temperature of the laser generator, they ensure stable power output and extend the lifespan of core components. They are widely used in laser cutting, marking, engraving, and welding processes. However, laser chiller condensers generate a large amount of waste heat during operation, and direct discharge leads to energy waste. Existing technologies require additional space for independent heat exchangers, and the compact structure of chillers makes them difficult to match. Traditional air-cooled recovery devices suffer from insufficient thermal coupling between heat exchange tubes and condenser tubes, resulting in low waste heat recovery efficiency. Furthermore, the open heat dissipation structure is prone to blockage by workshop dust when not in use, affecting its lifespan. Therefore, we propose a stainless steel heat exchange tube for condenser waste heat recovery in laser chillers. Utility Model Content
[0003] To overcome the aforementioned technical problems, the purpose of this utility model is to provide a stainless steel heat exchange tube for waste heat recovery of a condenser in a laser chiller. This addresses the issues raised in the background section of the prior art, such as the need for additional equipment space to install an independent heat exchanger, the difficulty in matching the compact structure of the chiller, the low waste heat recovery efficiency of traditional air-cooled recovery devices due to insufficient thermal coupling between the heat exchange tube and the condenser tube, and the fact that the open heat dissipation structure is easily clogged by workshop dust when not in use, affecting its service life.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a stainless steel heat exchange tube for waste heat recovery in a laser chiller condenser, comprising a laser chiller body, an installation port on the surface of the laser chiller body, a magnet fixedly connected to the bottom of the installation port, a heat exchange box inside the installation port, a fan fixedly connected to one side of the heat exchange box, a condenser tube fixedly connected inside the heat exchange box, multiple sets of heat exchange fins fixedly connected to the outer surface of the condenser tube, and heat exchange tubes fixedly connected within the multiple sets of heat exchange fins. The other side of the heat exchange box... A heat dissipation vent is provided on one side, and a protective structure is provided on the top of the mounting port. The protective structure includes a fixing block, and a storage slot 1 is provided inside the fixing block. Storage slot 2 is provided on both sides of the storage slot 1. Limiting slots are provided on the outer sides of the two sets of storage slot 2. A rotating rod is rotatably connected inside the fixing block. Limiting blocks are fixedly connected to both sides of the rotating rod. A protective cloth is rolled on the surface of the rotating rod. Coil springs are rolled on both sides of the surface of the rotating rod. A pull plate is fixedly connected to one end of the protective cloth. A magnet 2 is fixedly connected to the bottom of the pull plate.
[0005] Preferably, the heat exchange tube is disposed in the air duct space between the heat exchange fins and the fan, and the inlet and outlet of the heat exchange tube are respectively connected to the ambient temperature water circulation system of the laser chiller body.
[0006] Preferably, the heat exchange tube is S-shaped, the surface of the heat exchange tube is in contact with the surface of the heat exchange fins, the contact surface between the heat exchange tube and the heat exchange fins is filled with a thermally conductive medium layer, the end of the heat exchange tube is provided with a connecting flange, and the heat exchange tube is made of stainless steel.
[0007] Preferably, the radius of the limiting block is larger than the radius of the rotating rod, the limiting block is rotatably connected in the limiting groove, and both ends of the rotating rod pass through the second storage groove and are fixedly connected to the limiting block.
[0008] Preferably, one end of the protective cloth is fixedly connected to the rotating rod, and the other end of the protective cloth passes through the bottom of the storage groove and is fixedly connected to the pull plate. The width of the protective cloth is greater than the opening width of the mounting port.
[0009] Preferably, the two ends of the coil spring are fixedly connected to the inner wall of the second storage groove and the surface of the rotating rod, respectively.
[0010] Preferably, the second magnet is positioned above the first magnet, and the second magnet cooperates with the first magnet.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. This laser chiller uses a stainless steel heat exchange tube for condenser waste heat recovery, equipped with a heat exchange box. It abandons the traditional method of actively heating room-temperature water with heating rods, eliminating the need for significant modifications to the main frame, condenser, and core piping of the room-temperature water circuit. Innovatively, a heat exchange tube is placed between the condenser tube and the fan, allowing the room-temperature water flowing through this tube to fully absorb the waste heat emitted by the heat exchange fins and condenser tubes, converting the waste heat energy into the energy required for heating the room-temperature water. This significantly reduces the overall power consumption of the laser chiller. It eliminates the heating rods and frequently starting / stopping relays and other easily damaged mechanical parts relied upon in traditional heating methods. Heat exchange is achieved through fixed heat exchange tubes, reducing the number of moving mechanical parts. Structurally, it avoids mechanical fatigue and relay contact wear caused by frequent heating rod starts and stops, significantly reducing equipment failure rate and improving system stability. The simple structural design is highly adaptable to different models of laser chillers, facilitating upgrades and modifications to existing equipment.
[0013] 2. The stainless steel heat exchange tube for condenser waste heat recovery in this laser chiller is equipped with a protective structure. When the laser chiller is not in use, pulling the pull plate will pull the protective cloth out from the inside of the storage tank. The protective cloth is fixed in position by the magnetic attraction between magnet 2 and magnet 1. This can cover the installation port when the machine is stopped, preventing dust and debris from entering the laser chiller body through the installation port and causing damage to the components. Lifting the pull plate will cause magnet 2 to stop attracting magnet 1. Under the action of the coil spring, the rotating rod will rotate, thereby rolling the protective cloth back into the storage tank. It is quite convenient to use. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0015] Figure 2 This is a schematic diagram of the internal structure of the heat exchanger box of this utility model;
[0016] Figure 3 This is a schematic diagram of the structure of this utility model in dynamic form;
[0017] Figure 4 This is a three-dimensional front view of the structure of this utility model;
[0018] Figure 5 This is an exploded cross-sectional view of the protective structure of this utility model.
[0019] In the diagram: 1. Laser chiller body; 11. Mounting port; 12. Magnet one; 2. Heat exchange box; 21. Fan; 22. Heat exchange fins; 23. Condenser tube; 24. Heat exchange tube; 25. Heat dissipation port; 3. Protective structure; 31. Fixing block; 32. Storage slot one; 33. Storage slot two; 34. Limiting slot; 35. Rotating rod; 36. Limiting block; 37. Protective cloth; 38. Coil spring; 39. Pull plate; 310. Magnet two. Detailed Implementation
[0020] 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.
[0021] Please see Figure 1-5 One embodiment provided by this utility model:
[0022] A stainless steel heat exchange tube for waste heat recovery in a laser chiller condenser includes a laser chiller body 1. The surface of the laser chiller body 1 has an installation port 11. A magnet 12 is fixedly connected to the bottom of the installation port 11. A heat exchange box 2 is installed inside the installation port 11. A fan 21 is fixedly connected to one side of the heat exchange box 2. A condenser tube 23 is fixedly connected inside the heat exchange box 2. Multiple sets of heat exchange fins 22 are fixedly connected to the outer surface of the condenser tube 23. Heat exchange tubes 24 are fixedly connected inside the multiple sets of heat exchange fins 22. A heat dissipation vent 25 is provided on the other side of the heat exchange box 2. A protective structure 3 is provided on the top of the installation port 11. The protective structure 3 includes a fixing block 31, and a storage groove is provided inside the fixing block 31. 32. Storage slots 33 are provided on both sides of storage slot 32. Limiting slots 34 are provided on the outer sides of the two sets of storage slots 33. A rotating rod 35 is rotatably connected inside the fixing block 31. Limiting blocks 36 are fixedly connected to both sides of the rotating rod 35. A protective cloth 37 is rolled on the surface of the rotating rod 35. A coil spring 38 is rolled on both sides of the surface of the rotating rod 35. A pull plate 39 is fixedly connected to one end of the protective cloth 37. A magnet 310 is fixedly connected to the bottom of the pull plate 39. A heat exchange box 2 is set up. It abandons the traditional method of actively consuming electricity to heat room temperature water by heating rods. It does not require major changes to the main frame, condenser and core pipeline of the room temperature water circuit of the laser chiller body 1. It innovatively uses the condenser pipe 2 A heat exchange tube 24 is installed between the laser chiller body 1 and the fan 21. This allows the ambient temperature water flowing through the tube to fully absorb the waste heat emitted by the heat exchange fins 22 and condenser tube 23, converting the waste heat energy into the energy required for heating the ambient temperature water. This significantly reduces the overall power consumption of the laser chiller body 1. It eliminates the heating rods and frequently starting / stopping relays that are prone to damage in traditional heating methods. Heat exchange is achieved through the fixed heat exchange tube 24, reducing the number of moving mechanical parts. Structurally, this avoids mechanical fatigue and relay contact wear caused by frequent starting / stopping of heating rods, significantly reducing equipment failure rate and improving system stability. The simple structural design makes it suitable for different models of laser chiller bodies 1. The system is adaptable and facilitates upgrades to existing equipment. A protective structure 3 is provided. When the laser chiller body 1 is not in use, pulling the pull plate 39 pulls the protective cloth 37 out of the storage slot 32. The protective cloth 37 is fixed in position by the magnetic attraction between magnet 2 310 and magnet 12. This can cover the installation port 11 when the machine is stopped, preventing dust and debris from entering the laser chiller body 1 through the installation port 11 and causing damage to the components. Lifting the pull plate 39 causes magnet 2 310 to stop attracting magnet 12. Under the action of the coil spring 38, the rotating rod 35 is pulled to rotate, thereby rolling the protective cloth 37 back into the storage slot 32. It is convenient to use.
[0023] Furthermore, the heat exchange tube 24 is set in the air duct space between the heat exchange fins 22 and the fan 21. The inlet and outlet of the heat exchange tube 24 are respectively connected to the ambient temperature water circulation system of the laser chiller body 1. When the ambient temperature water flows through the heat exchange tube 24, it fully absorbs the waste heat discharged by the heat exchange fins 22 and the condenser tube 23, and converts the waste heat energy into the energy required for heating ambient temperature water.
[0024] Furthermore, the heat exchange tube 24 is S-shaped, and the S-shaped arrangement extends its heat exchange path between multiple sets of heat exchange fins 22. The surface of the heat exchange tube 24 is in contact with the surface of the heat exchange fins 22. The contact surface between the heat exchange tube 24 and the heat exchange fins 22 is filled with a thermally conductive medium layer. The thermally conductive medium layer (such as metal thermal paste) fills the micro gaps and forms a continuous heat conduction channel to ensure heat transfer. The end of the heat exchange tube 24 is provided with a connecting flange, which makes it easier to connect the heat exchange tube 24 to other pipelines. The heat exchange tube 24 is made of stainless steel, which has both good thermal conductivity and corrosion resistance.
[0025] Furthermore, the radius of the limiting block 36 is larger than the radius of the rotating rod 35. The limiting block 36 is rotatably connected in the limiting groove 34. The two ends of the rotating rod 35 pass through the receiving groove 33 and are fixedly connected to the limiting block 36. The inner wall of the limiting groove 34 is clearance-fitted with the limiting block 36 to ensure that the rotating rod 35 only rotates around the axis and does not produce radial movement.
[0026] Furthermore, one end of the protective cloth 37 is fixedly connected to the rotating rod 35, and the other end of the protective cloth 37 passes through the bottom of the storage slot 32 and is fixedly connected to the pull plate 39. The width of the protective cloth 37 is greater than the opening width of the mounting port 11. When the pull plate 39 is pulled down, it causes the protective cloth 37 to unfold and completely cover the mounting port 11.
[0027] Furthermore, the two ends of the coil spring 38 are fixedly connected to the inner wall of the storage groove 33 and the surface of the rotating rod 35, respectively. When the pull plate 39 is pulled down, the coil spring 38 is twisted to store energy. After releasing the hand, the coil spring 38 releases energy to drive the rotating rod 35 to reverse and automatically retract the protective cloth 37.
[0028] Furthermore, magnet 2 310 is positioned above magnet 12. Magnet 2 310 and magnet 12 cooperate with each other. After the protective cloth 37 is unfolded, magnet 2 310 falls above magnet 12. The magnetic attraction causes the pull plate 39 to be tightly attached to the lower edge of the mounting opening 11, thus fixing the protective cloth 37 without manual locking.
[0029] Working principle: The heat exchange box 2 is pushed into the laser chiller body 1 along the installation port 11. The power supply of the fan 21 is connected to the chiller control system. The inlet and outlet of the heat exchange tube 24 are connected to the chiller's ambient temperature water circulation pipeline through the flange. When the laser chiller body 1 is running, the ambient temperature water circulation pipeline passes through the heat exchange tube 24 and fully absorbs the waste heat discharged by the heat exchange fins 22 and condenser tube 23, converting the waste heat energy into the energy required for heating ambient temperature water. After the machine stops, pull down the pull plate 39 until the magnet 2 310 attracts the magnet 1 12, and the protective cloth 37 completely covers the surface of the installation port 11. When the machine is started, the upper push-pull plate 39 releases the magnetic attraction, and the coil spring 38 automatically retracts the protective cloth 37 into the fixed block 31.
[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A condenser waste heat recovery stainless steel heat exchange tube for a laser water chiller, comprising a laser water chiller body (1), characterized in that: The surface of the laser chiller body (1) is provided with an installation port (11). A magnet (12) is fixedly connected to the bottom of the installation port (11). A heat exchange box (2) is provided inside the installation port (11). A fan (21) is fixedly connected to one side of the heat exchange box (2). A condenser tube (23) is fixedly connected inside the heat exchange box (2). Multiple sets of heat exchange fins (22) are fixedly connected to the outer surface of the condenser tube (23). Heat exchange tubes (24) are fixedly connected inside the multiple sets of heat exchange fins (22). A heat dissipation port (25) is provided on the other side of the heat exchange box (2). A protective structure (3) is provided on the top of the installation port (11). The device includes a fixing block (31), which has a storage slot 1 (32) inside and storage slot 2 (33) on both sides of the storage slot 1 (32). Limiting slots (34) are provided on the outer sides of the two sets of storage slot 2 (33). A rotating rod (35) is rotatably connected inside the fixing block (31). Limiting blocks (36) are fixedly connected on both sides of the rotating rod (35). A protective cloth (37) is rolled on the surface of the rotating rod (35). A coil spring (38) is rolled on both sides of the surface of the rotating rod (35). A pull plate (39) is fixedly connected to one end of the protective cloth (37). A magnet 2 (310) is fixedly connected to the bottom of the pull plate (39).
2. The condenser waste heat recovery stainless steel heat exchange tube for a laser cold water machine according to claim 1, characterized in that: The heat exchange tube (24) is located in the air duct space between the heat exchange fins (22) and the fan (21). The inlet and outlet of the heat exchange tube (24) are respectively connected to the ambient temperature water circulation system of the laser chiller body (1).
3. The condenser waste heat recovery stainless steel heat exchange tube for a laser cold water machine according to claim 1, characterized in that: The heat exchange tube (24) is S-shaped, and the surface of the heat exchange tube (24) is in contact with the surface of the heat exchange fin (22). The contact surface between the heat exchange tube (24) and the heat exchange fin (22) is filled with a heat-conducting medium layer. A connecting flange is provided at the end of the heat exchange tube (24). The heat exchange tube (24) is made of stainless steel.
4. The stainless steel heat exchange tube for waste heat recovery in a laser chiller condenser according to claim 1, characterized in that: The radius of the limiting block (36) is greater than the radius of the rotating rod (35). The limiting block (36) is rotatably connected in the limiting groove (34). The two ends of the rotating rod (35) pass through the second storage groove (33) and are fixedly connected to the limiting block (36).
5. The condenser waste heat recovery stainless steel heat exchange tube for a laser cold water machine according to claim 1, characterized in that: One end of the protective cloth (37) is fixedly connected to the rotating rod (35), and the other end of the protective cloth (37) passes through the bottom of the storage slot (32) and is fixedly connected to the pull plate (39). The width of the protective cloth (37) is greater than the opening width of the mounting port (11).
6. The condenser waste heat recovery stainless steel heat exchange tube for a laser cold water machine according to claim 1, characterized in that: The two ends of the coil spring (38) are fixedly connected to the inner wall of the storage groove (33) and the surface of the rotating rod (35), respectively.
7. A stainless steel heat exchange tube for waste heat recovery in a laser chiller condenser according to claim 1, characterized in that: The second magnet (310) is positioned above the first magnet (12), and the second magnet (310) cooperates with the first magnet (12).