Sugar alcohol production power recovery device

By optimizing fluid flow using a spiral plate structure and water pump system in the power recovery unit for sugar alcohol production, combined with phase change material insulation and power conversion mechanism, the problem of uneven fluid flow distribution is solved, achieving full heat storage and kinetic energy recovery, improving energy utilization efficiency and reducing production costs.

CN223925533UActive Publication Date: 2026-02-17COLYUAN FOOD (YUCHENG) CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520614351.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-02
Publication Date
2026-02-17
Estimated Expiration
2035-04-02

AI Technical Summary

Technical Problem

Existing power recovery devices for sugar alcohol production suffer from uneven fluid flow distribution during the heat recovery process, resulting in excessively high flow rates and short residence times in some areas. This leads to insufficient heat transfer, causing heat waste and affecting the overall efficiency of energy utilization.

Method used

The spiral plate structure and water pump system are used to optimize fluid flow. Combined with phase change material insulation and power conversion mechanism, the spiral plate disturbs the fluid to form turbulence, the water pump optimizes the flow state, and the power conversion mechanism converts the kinetic energy of the flowing liquid into electrical energy.

Benefits of technology

It improves heat exchange efficiency, realizes full storage and utilization of heat, recovers kinetic energy, enhances comprehensive energy utilization efficiency, and reduces production costs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223925533U_ABST
    Figure CN223925533U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of biochemical engineering equipment, and discloses a sugar alcohol production power recovery device which comprises a heat exchange tank and a heat preservation tank, the left side of the outer wall of the heat exchange tank is communicated with a water inlet pipe, the inner wall of the heat exchange tank is fixedly connected with a spiral plate, and the outer wall of the spiral plate is fixedly connected with a plurality of check blocks. A water pump is fixedly connected to the middle of the top end of the heat exchange tank, one end of the water pump communicates with a hollow pipe, the bottom end of the hollow pipe penetrates through the top end of the heat exchange tank, a plurality of notches are formed in the bottom end of the outer wall of the hollow pipe, and the other end of the water pump communicates with a hose. High-temperature liquid is in contact with the spiral plate, turbulent flow is formed by the liquid under the disturbance action of the spiral structure and the check block, water is conveyed to the heat preservation tank through the water pump, the phase change material absorbs heat to achieve the heat preservation effect, meanwhile, the automatic exhaust pipe exhausts gas, heat storage and utilization are guaranteed, and therefore the heat exchange efficiency is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of biochemical equipment technology, and in particular to a power recovery device for sugar alcohol production. Background Technology

[0002] The production of sugar alcohols generates a large amount of energy, including thermal energy and fluid kinetic energy. A sugar alcohol production power recovery device is a key piece of equipment designed to recover and reuse this energy that is wasted during the production process. It can effectively improve energy utilization and reduce production costs, which is of great significance to the sustainable development of the entire sugar alcohol production industry.

[0003] Early power recovery units in sugar alcohol production relied primarily on traditional, simple heat exchangers for heat recovery. These were typically shell-and-tube structures with limited heat exchange area and conventional internal fluid flow patterns, resulting in significant heat loss during operation. While technological advancements have led to improvements in heat recovery, employing more complex and efficient heat exchangers with enhanced heat transfer fins, these improvements still have drawbacks. The uneven fluid distribution in existing heat exchangers causes excessively high flow rates and short residence times in some areas, preventing sufficient heat transfer to the heat exchange medium and hindering truly uniform and efficient heat exchange. This persists, severely limiting the overall energy utilization efficiency of the unit. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a power recovery device for sugar alcohol production, which aims to improve the problem of uneven fluid flow distribution in the prior art, which leads to insufficient heat transfer to the heat exchange medium in this area.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a power recovery device for sugar alcohol production, comprising a heat exchange tank and an insulation tank. A water inlet pipe is connected to the left side of the outer wall of the heat exchange tank. A spiral plate is fixedly connected to the inner wall of the heat exchange tank. Multiple baffles are fixedly connected to the outer wall of the spiral plate. A water pump is fixedly connected to the middle of the top of the heat exchange tank. One end of the water pump is connected to a hollow tube. The bottom end of the hollow tube penetrates the top of the heat exchange tank. Multiple notches are provided at the bottom of the outer wall of the hollow tube. The other end of the water pump is connected to a flexible hose. The other end of the flexible hose is connected to a conical connecting block. The bottom end of the conical connecting block is connected to the left side of the top of the insulation tank. Multiple perforated rings are fixedly connected to the inner wall of the insulation tank. An automatic exhaust pipe is connected to the right side of the top of the insulation tank. An energy conversion mechanism is provided on the outer wall of the hollow tube, which generates electricity using flowing liquid.

[0006] As a further description of the above technical solution:

[0007] The power conversion mechanism includes a sliding sleeve, the inner wall of which is rotatably connected to the outer wall of the hollow tube. Multiple spiral blocks are fixedly connected to the outer wall of the sliding sleeve. A linkage gear is fixedly connected to the top of the outer side of the sliding sleeve. A U-shaped support is fixedly connected to the front of the top of the heat exchange tank. A generator is fixedly connected to the inner wall of the U-shaped support. A fixed column is fixedly connected to the output end of the generator. The bottom end of the fixed column passes through the heat exchange tank and is fixedly connected to a driven gear. The outer wall of the driven gear meshes with the outer wall of the linkage gear.

[0008] As a further description of the above technical solution:

[0009] An observation window is provided on the front side of the outer wall of the heat exchange tank, and an outer frame is fixedly connected to the outer wall of the observation window.

[0010] As a further description of the above technical solution:

[0011] A nameplate is fixedly connected to the bottom front part of the outer wall of the heat exchange tank, and a sealing ring is fixedly connected to the outer wall of the water inlet pipe.

[0012] As a further description of the above technical solution:

[0013] A temperature sensor is fixedly connected to the top center of the insulated container, and a display screen is fixedly connected to the front side of the outer wall of the insulated container.

[0014] As a further description of the above technical solution:

[0015] The bottom of the heat exchange tank is fixedly connected to multiple V-shaped support blocks, and the bottom of the V-shaped support blocks is threadedly connected to threaded support feet.

[0016] As a further description of the above technical solution:

[0017] The bottom of the insulated tank is connected to a drain pipe, and a valve is fixedly connected to the outer wall of the drain pipe.

[0018] As a further description of the above technical solution:

[0019] The inner wall of the heat exchange tank is rounded, and the inner wall size of the sliding sleeve is the same as the outer wall size of the hollow tube.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, high-temperature liquid flows into the heat exchange tank through the inlet pipe and comes into contact with the spiral plate. The disturbance effect of the spiral structure and the baffle makes the liquid form turbulence, which improves the heat exchange efficiency. The water pump draws out the water and flows through the hollow pipe to optimize the distribution and flow state. The water is then transported to the heat preservation tank, where the phase change material absorbs heat to achieve the heat preservation effect. At the same time, the automatic exhaust pipe discharges gas to prevent the gas pressure from affecting the liquid entry, ensuring heat storage and utilization, thereby increasing the heat exchange efficiency.

[0022] 2. In this utility model, when water flows outside the hollow tube, it impacts the spiral block on the outer wall of the sliding sleeve, causing the sleeve to rotate around the tube. The spiral block converts the linear kinetic energy of the water flow into the circular motion of the sleeve, causing the linkage gear to rotate accordingly, which in turn drives the driven gear and the fixed column to rotate, ultimately causing the generator output end to rotate. The generator converts mechanical energy into electrical energy through electromagnetic induction, realizing the recovery and utilization of kinetic energy. Attached Figure Description

[0023] Figure 1 This is a perspective view of a power recovery device for sugar alcohol production proposed in this utility model;

[0024] Figure 2 This is a front view of a power recovery device for sugar alcohol production proposed in this utility model;

[0025] Figure 3 This is a top view of a power recovery device for sugar alcohol production proposed in this utility model;

[0026] Figure 4 This is a cross-sectional view of the heat exchange tank of a power recovery device for sugar alcohol production proposed in this utility model;

[0027] Figure 5 This is a cross-sectional view of the insulated tank of a power recovery device for sugar alcohol production proposed in this utility model.

[0028] Legend:

[0029] 1. Heat exchange tank; 2. Power conversion mechanism; 201. Spiral block; 202. Sliding sleeve; 203. Linkage gear; 204. Driven gear; 205. Fixed column; 206. U-shaped support column; 207. Generator; 3. Insulation tank; 4. Water inlet pipe; 5. Spiral plate; 6. Stop block; 7. Hollow tube; 8. Notch; 9. Water pump; 10. Hose; 11. Hole ring; 12. Automatic exhaust pipe; 13. Conical connecting block; 14. Observation window; 15. Outer frame; 16. Nameplate; 17. Sealing ring; 18. Temperature sensor; 19. Display screen; 20. V-shaped support block; 21. Threaded support foot; 22. Drain pipe; 23. Valve. Detailed Implementation

[0030] 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.

[0031] Reference Figure 1 , Figure 4 and Figure 5 This utility model provides an embodiment of a power recovery device for sugar alcohol production, comprising a heat exchange tank 1 and an insulation tank 3. The device is characterized by: a water inlet pipe 4 connected to the left side of the outer wall of the heat exchange tank 1; a spiral plate 5 fixedly connected to the inner wall of the heat exchange tank 1; water flowing into the heat exchange tank 1 through the water inlet pipe 4; and the liquid entering the heat exchange tank 1 contacting the spiral plate 5. Its unique spiral structure greatly increases the flow path of the liquid within the heat exchange tank 1, allowing for more thorough heat exchange with the surrounding thermal environment. Multiple baffles 6 are fixedly connected to the outer wall of the spiral plate 5, which disturb the water flow, disrupting the laminar flow and creating turbulent flow, further improving heat exchange efficiency. A water pump 9 is fixedly connected to the top center of the heat exchange tank 1, with one end of the water pump 9 connected to a hollow tube 7. The bottom end of the hollow tube 7 penetrates the top of the heat exchange tank 1, and multiple notches 8 are provided at the bottom of the outer wall of the hollow tube 7. The other end of the pump 9 is connected to a hose 10, and the other end of the hose 10 is connected to a conical connecting block 13. The bottom end of the conical connecting block 13 is connected to the top left side of the heat exchange tank 3. The pump 9 draws water out of the heat exchange tank 1. The water flows through the hollow tube 7, which avoids the water flow being too concentrated and further optimizes the distribution and flow state of the water in the heat exchange tank 1. The water drawn out by the pump 9 is transported to the conical connecting block 13 through the hose 10, and the water is smoothly introduced into the heat exchange tank 3 from the hose 10. Multiple perforated rings 11 are fixedly connected to the inner wall of the heat exchange tank 3. Since different phase change materials are placed between the multiple perforated rings 11, the heat inside the water entering the heat exchange tank 3 is absorbed by the phase change materials, thereby achieving the heat preservation effect. An automatic exhaust pipe 12 is connected to the top right side of the heat exchange tank 3. An electric energy conversion mechanism 2 is set on the outer wall of the hollow tube 7. The electric energy conversion mechanism 2 generates electricity using the flowing liquid.

[0032] Specifically, during the sugar alcohol production process, the high-temperature liquid produced flows into the heat exchange tank 1 through the inlet pipe 4. The liquid entering the heat exchange tank 1 comes into contact with the spiral plate 5. Its unique spiral structure greatly increases the flow path of the liquid within the heat exchange tank 1, allowing for more thorough heat exchange with the surrounding thermal environment. Furthermore, the baffle 6 disrupts the water flow, breaking the laminar flow and creating turbulent flow, further improving heat exchange efficiency. This increases the contact opportunities and time between the water and the surrounding heat. Simultaneously, the water pump 9 starts working, drawing water out of the heat exchange tank 1. The water flows through the hollow pipe 7, preventing excessive water concentration and further optimizing the flow of water within the heat exchange tank 1. The distribution and flow state of the water are controlled, and the water pumped by the water pump 9 is transported to the conical connecting block 13 through the hose 10. The water is smoothly introduced into the heat preservation tank 3 from the hose 10. After the water enters the heat preservation tank 3, the heat inside the water is absorbed by the phase change material between the multiple hole rings 11, thereby achieving the heat preservation effect. In addition, gas is generated in the high temperature water, which is discharged from the automatic exhaust pipe 12 to prevent gas from appearing at the top of the heat preservation tank 3. When the gas accumulates, it will generate pressure, preventing the liquid from entering the heat preservation tank 3. This increases the water heat exchange and stores the heat well for its utilization.

[0033] Reference Figure 1 , Figure 2 and Figure 4 The power conversion mechanism 2 includes a sliding sleeve 202. The inner wall of the sliding sleeve 202 is rotatably connected to the outer wall of the hollow tube 7. Multiple spiral blocks 201 are fixedly connected to the outer wall of the sliding sleeve 202. Water flowing outside the hollow tube 7 impacts the spiral blocks 201 on the outer wall of the sliding sleeve 202. Under the impact of the water flow, the spiral blocks 201 drive the sliding sleeve 202 to rotate around the hollow tube 7. The spiral blocks 201 can better utilize the kinetic energy of the water flow, converting the linear motion of the water flow into the circular motion of the sliding sleeve 202. A linkage gear 203 is fixedly connected to the top of the outer surface of the sliding sleeve 202. (Heat exchange tank) A U-shaped support column 206 is fixedly connected to the front of the top of the heat exchange tank 1. A generator 207 is fixedly connected to the inner wall of the U-shaped support column 206. A fixed column 205 is fixedly connected to the output end of the generator 207. The bottom end of the fixed column 205 passes through the heat exchange tank 1 and is fixedly connected to a driven gear 204. The outer wall of the driven gear 204 meshes with the outer wall of the linkage gear 203. The linkage gear 203 will rotate together with the sliding sleeve 202. At the same time, when the linkage gear 203 rotates, it will drive the driven gear 204 to rotate. The rotation of the driven gear 204 will then drive the fixed column 205 to rotate, and finally make the output end of the generator 207 rotate.

[0034] Specifically, as water flows outside the hollow tube 7, it impacts multiple spiral blocks 201 on the outer wall of the sliding sleeve 202. Under the impact of the water flow, the spiral blocks 201 drive the sliding sleeve 202 to rotate around the hollow tube 7. The spiral blocks 201 can better utilize the kinetic energy of the water flow, converting the linear motion of the water flow into the circular motion of the sliding sleeve 202, causing the linkage gear 203 to rotate along with the sliding sleeve 202. At the same time, when the linkage gear 203 rotates, it drives the driven gear 204 to rotate. The rotation of the driven gear 204 then drives the fixed column 205 to rotate, ultimately causing the output end of the generator 207 to rotate. The generator 207 uses the principle of electromagnetic induction to convert the mechanical energy generated by this rotation into electrical energy, realizing the recovery and utilization of the kinetic energy of the flowing liquid.

[0035] Reference Figure 1 , Figure 2 and Figure 3 An observation window 14 is provided on the front side of the outer wall of the heat exchange tank 1, allowing staff to monitor the operating status of the heat exchange tank 1 in real time. An outer frame 15 is fixedly connected to the outer wall of the observation window 14, providing reliable support and protection for the observation window 14. A nameplate 16 is fixedly connected to the bottom front of the outer wall of the heat exchange tank 1, allowing for quick access to its performance parameters. A sealing ring 17 is fixedly connected to the outer wall of the water inlet pipe 4, effectively ensuring the sealing between the water inlet pipe 4 and other components. A temperature sensor 18 is fixedly connected to the top center of the insulation tank 3, enabling timely monitoring of the temperature of the liquid inside the insulation tank 3. A display screen 19 is fixedly connected to the front side of the outer wall of the insulation tank 3, displaying the temperature data monitored by the temperature sensor 18.

[0036] Specifically, the observation window 14 allows staff to monitor the operating status of the heat exchange tank 1 in real time, promptly detect any abnormalities such as blockage or leakage of fluids, and take appropriate measures to address them, thereby ensuring the efficient and stable operation of the heat exchange tank 1. The outer frame 15 provides reliable support and protection for the observation window 14. The nameplate 16 allows for quick access to its performance parameters, ensuring operation under suitable conditions and avoiding equipment failures or safety hazards caused by parameter mismatches. The sealing ring 17 effectively ensures the sealing between the water inlet pipe 4 and other components, maintaining smooth water flow and ensuring normal circulation of hot and cold water during the heat exchange process, thus improving heat exchange efficiency. The temperature sensor 18 allows for timely monitoring of the liquid temperature in the insulation tank 3, enabling rapid action when abnormal temperature fluctuations occur. The display screen 19 provides a clear view of the temperature data monitored by the temperature sensor 18.

[0037] Reference Figure 1 , Figure 2 and Figure 4The bottom of the heat exchange tank 1 is fixedly connected with multiple V-shaped support blocks 20. The V-shaped support blocks 20 can provide stable support for the heat exchange tank 1 from different angles and positions. The bottom of the V-shaped support blocks 20 is threadedly connected with threaded support feet 21. Adjusting the height of the threaded support feet 21 can make the heat exchange tank 1 horizontal. The bottom of the heat exchange tank 3 is connected to a drain pipe 22, which provides a channel for liquid discharge. The outer wall of the drain pipe 22 is fixedly connected with a valve 23. The valve 23 is used to open or close the drain pipe 22 to precisely control the discharge speed and flow rate of the liquid. The inner wall of the heat exchange tank 1 is rounded to reduce the resistance of the fluid when flowing in the heat exchange tank 1. The inner wall size of the sliding sleeve 202 is the same as the outer wall size of the hollow tube 7, which allows the sliding sleeve 202 to fit tightly on the outer wall of the hollow tube 7 and slide smoothly on the hollow tube 7.

[0038] Specifically, the V-shaped support block 20 provides stable support for the heat exchange tank 1 from different angles and positions. By adjusting the height of the threaded support leg 21, the heat exchange tank 1 is kept horizontal. The drain pipe 22 provides a channel for liquid discharge, allowing the liquid in the tank to flow out smoothly. The drain pipe 22 is opened or closed by the valve 23 to precisely control the discharge speed and flow rate of the liquid. The smooth inner wall of the heat exchange tank 1 reduces the resistance of the fluid flowing in the heat exchange tank 1 and reduces the friction between the fluid and the inner wall, thereby reducing energy loss. The inner wall size of the sliding sleeve 202 is the same as the outer wall size of the hollow tube 7, allowing the sliding sleeve 202 to fit tightly on the outer wall of the hollow tube 7 and slide smoothly on the hollow tube 7.

[0039] Working principle: First, during the sugar alcohol production process, high-temperature liquid flows into heat exchange tank 1 through inlet pipe 4. Inside heat exchange tank 1, the liquid comes into contact with spiral plate 5. Its spiral structure significantly increases the flow path of the liquid, promoting the heat exchange efficiency between the liquid and the surrounding thermal environment. In addition, baffle 6 disturbs the water flow, disrupting the laminar flow state and forming turbulent flow, further improving the heat exchange efficiency. This increases the opportunity and time for water to come into contact with heat. At the same time, water pump 9 starts working, drawing water out of heat exchange tank 1 and allowing it to flow through hollow pipe 7, avoiding excessive water concentration and optimizing the distribution of water within heat exchange tank 1. In the flow state, the water pumped by the water pump 9 is delivered to the conical connecting block 13 through the hose 10 and smoothly introduced into the heat preservation tank 3. After the water enters the heat preservation tank 3, the heat in the water is absorbed by the different phase change materials placed between the perforated rings 11, thereby achieving the heat preservation effect. At the same time, since gas is generated in the high temperature water, the gas is discharged through the automatic exhaust pipe 12, preventing the gas from accumulating at the top of the heat preservation tank 3 and avoiding the generation of gas pressure. This ensures that the liquid can smoothly enter the heat preservation tank 3, thereby improving the efficiency of water heat exchange and effectively storing heat for subsequent use.

[0040] Furthermore, through the electric conversion mechanism 2, when the water flows on the outside of the hollow tube 7, it impacts multiple spiral blocks 201 set on the outer wall of the sliding sleeve 202. Under the action of the water flow impact force, the spiral blocks 201 drive the sliding sleeve 202 to rotate around the hollow tube 7. The spiral blocks 201 effectively utilize the kinetic energy of the water flow, converting the linear motion of the water flow into the circular motion of the sliding sleeve 202. As a result, the linkage gear 203 rotates accordingly, which in turn drives the driven gear 204 to rotate. The rotation of the driven gear 204 causes the fixed column 205 to rotate, ultimately causing the output end of the generator 207 to rotate. Based on the principle of electromagnetic induction, the generator 207 converts the mechanical energy generated therefrom into electrical energy, thereby realizing the effective recovery and utilization of the kinetic energy of the flowing liquid.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sugar alcohol production power recovery apparatus comprising a heat exchange tank (1) and a heat preservation tank (3), characterized in that: The outer wall left side of heat exchange tank (1) is connected with water inlet pipe (4), the inner wall of heat exchange tank (1) is fixedly connected with spiral plate (5), the outer wall of spiral plate (5) is fixedly connected with a plurality of stoppers (6), the top middle part of heat exchange tank (1) is fixedly connected with water pump (9), one end of water pump (9) is connected with hollow tube (7), the bottom end of hollow tube (7) penetrates the top of heat exchange tank (1), a plurality of notches (8) are formed in the outer wall bottom end of hollow tube (7), the other end of water pump (9) is connected with hose (10), the other end of hose (10) is connected with tapered connecting block (13), the bottom end of tapered connecting block (13) is connected with the top left side of heat preservation tank (3), a plurality of hole rings (11) are fixedly connected to the inner wall of heat preservation tank (3), the top right side of heat preservation tank (3) is connected with automatic exhaust pipe (12), the outer wall of hollow tube (7) is provided with electric energy conversion mechanism (2), and the electric energy conversion mechanism (2) generates electricity by flowing liquid.

2. A polyol production power recovery apparatus according to claim 1, characterized by: The electric energy conversion mechanism (2) comprises a sliding sleeve (202), the inner wall of the sliding sleeve (202) is rotatably connected to the outer wall of the hollow tube (7), a plurality of spiral blocks (201) are fixedly connected to the outer wall of the sliding sleeve (202), a linkage gear (203) is fixedly connected to the top end of the outer portion of the sliding sleeve (202), a U-shaped support (206) is fixedly connected to the top front side of the heat exchange tank (1), a generator (207) is fixedly connected to the inner wall of the U-shaped support (206), a fixed column (205) is fixedly connected to the output end of the generator (207), the bottom end of the fixed column (205) penetrates the heat exchange tank (1) and is fixedly connected with a driven gear (204), and the outer wall of the driven gear (204) is engaged with the outer wall of the linkage gear (203).

3. The apparatus of claim 1, wherein: The outer wall of the observation window (14) is fixedly connected with an outer frame (15).

4. The apparatus of claim 1, wherein: The outer wall of the water inlet pipe (4) is fixedly connected with a sealing ring (17).

5. The apparatus of claim 1, wherein: The top middle part of the heat preservation tank (3) is fixedly connected with a temperature sensor (18), and the outer wall of the heat preservation tank (3) is fixedly connected with a display screen (19).

6. The polyol production power recovery apparatus of claim 1, wherein: The bottom end of the heat exchange tank (1) is fixedly connected with a plurality of V-shaped supports (20), and the bottom end of the V-shaped support (20) is threadedly connected with a threaded foot (21).

7. The apparatus of claim 1, wherein: The bottom end of the heat preservation tank (3) is connected with a drain pipe (22), and the outer wall of the drain pipe (22) is fixedly connected with a valve (23).

8. The apparatus of claim 2, wherein: The inner wall of the heat exchange tank (1) is smoothly processed, and the size of the inner wall of the sliding sleeve (202) is consistent with the size of the outer wall of the hollow tube (7).