Efficient u-tube volumetric heat exchanger
By optimizing the flow paths of hot and cold fluids, removing fouling from the surface of heat exchange tubes, and implementing cooling water circulation, the problems of reduced heat exchanger efficiency and water waste have been solved, achieving efficient and safe heat exchange.
Patent Information
- Application Number
- CN202521438286.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-10
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-07-10
AI Technical Summary
After prolonged use, the heat exchanger's heat exchange efficiency decreases, resulting in high cooling water consumption and low heat dissipation efficiency, thus wasting water resources.
The design incorporates an internal baffle plate to optimize the flow and mixing of hot and cold fluids, a cleaning assembly to remove deposits on the surface of the U-shaped heat exchange tubes, a cooling water circulation section to achieve the recycling of cooling water, and temperature measuring devices and an exhaust pipe for real-time monitoring and adjustment.
It improves heat exchange efficiency, reduces thermal resistance, extends service life, reduces energy and water consumption, and ensures operational safety.
Smart Images

Figure CN224681332U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat exchanger technology, and in particular to a high-efficiency U-tube volumetric heat exchanger. Background Technology
[0002] A volumetric heat exchanger is a heat exchanger that uses the alternating flow of cold and hot fluids across the surface of a heat storage body in a heat storage chamber to exchange heat. A partitioned volumetric heat exchanger is a heat exchanger in which the cold and hot fluids are separated by a solid partition and exchange heat through the partition. Therefore, it is also called a surface heat exchanger. Its main structure consists of a vertical or horizontal heat exchange tank and heat exchange tubes.
[0003] After prolonged use, heat exchangers will face problems such as reduced heat exchange efficiency and high cooling water consumption due to scale buildup on the tube wall surface. At the same time, the cooling water system is mostly unidirectional, resulting in low heat dissipation efficiency and wasted water resources.
[0004] Therefore, it is necessary to provide a high-efficiency U-tube volumetric heat exchanger to solve the above-mentioned technical problems. Utility Model Content
[0005] This invention provides a high-efficiency U-tube volumetric heat exchanger, which solves the problems of reduced heat exchange efficiency leading to high cooling water consumption after prolonged use, as well as low heat dissipation efficiency and waste of water resources in the cooling water system.
[0006] To solve the above-mentioned technical problems, this utility model provides a high-efficiency U-tube volumetric heat exchanger, comprising: a volumetric heat exchanger body, a support at the lower part of the volumetric heat exchanger body, a connecting pipe on the side of the volumetric heat exchanger body, a cap fixedly connected to the end of the connecting pipe, an inlet end and an outlet end on the cap, multiple sets of U-shaped heat exchange tubes arranged inside the connecting pipe, the U-shaped heat exchange tubes extending into the interior of the volumetric heat exchanger body, a cleaning component arranged on the outside of the cap and extending into the interior of the connecting pipe to clean the surface of the U-shaped heat exchange tubes, a top cover at the upper part of the volumetric heat exchanger body, a cooling water circulation section arranged on the side of the volumetric heat exchanger body away from the connecting pipe for cooling and recycling the cooling water, a drain pipe at the bottom of the volumetric heat exchanger body, a first control valve arranged on the drain pipe, and a controller arranged on the outside of the volumetric heat exchanger body.
[0007] Preferably, the inlet and outlet are located on the upper and lower sides of the end cap, respectively, and a partition is fixedly connected inside the end cap, with the cleaning assembly located below the partition.
[0008] Preferably, the cleaning assembly includes a drive motor, the output end of which is connected to a transmission shaft, and a plurality of fixed seats are fixedly connected to a section of the transmission shaft extending to the connecting pipe, and a plurality of evenly distributed cleaning brushes are fixedly connected to the fixed seats.
[0009] Preferably, the cooling water circulation section includes a water tank, a water pump is installed on the water tank, an inlet pipe and a return pipe are connected to the water pump, and the other end is connected to the interior of the volumetric heat exchanger body. A first water valve is installed on the inlet pipe, and a second water valve is installed on the return pipe.
[0010] Preferably, the water tank has a heat dissipation vent at the top, and there are two heat dissipation vents located on both sides of the water pump. A protective net is fixedly connected to the heat dissipation vent to prevent external debris from entering the water tank.
[0011] Preferably, the top cover is provided with a temperature measuring element and an exhaust pipe, and the exhaust pipe is provided with a second control valve to monitor the internal temperature of the volumetric heat exchanger body in real time, and to open the second control valve to balance the air pressure when the air pressure is high.
[0012] Compared with related technologies, the high-efficiency U-tube volumetric heat exchanger provided by this utility model has the following beneficial effects:
[0013] This invention provides a high-efficiency U-tube volumetric heat exchanger. The internal baffle of the end cap optimizes the flow and mixing path of hot and cold fluids, improving heat exchange efficiency. The cleaning component can remove the dirt deposited on the surface of the U-shaped heat exchange tube, reducing thermal resistance and extending service life. The cooling water circulation section realizes cooling water circulation and natural heat dissipation, reducing energy consumption and water resource consumption. The temperature measuring element and exhaust pipe monitor and adjust the internal temperature and pressure in real time to ensure safe operation. Attached Figure Description
[0014] Figure 1 A schematic diagram of a preferred embodiment of a high-efficiency U-tube volumetric heat exchanger provided by this utility model;
[0015] Figure 2 This is a schematic diagram of the connecting pipe, end cap, and cleaning assembly in this utility model;
[0016] Figure 3 This is a schematic diagram of the cooling water circulation section in this utility model.
[0017] The diagram is labeled as follows: 1. Volumetric heat exchanger body; 2. Support frame; 3. Connecting pipe; 4. End cap; 5. Baffle plate; 6. Liquid inlet; 7. Liquid outlet; 8. U-shaped heat exchange tube; 9. Cleaning assembly; 91. Drive motor; 92. Drive shaft; 93. Fixture; 94. Cleaning brush; 10. Top cover; 11. Temperature measuring element; 12. Cooling water circulation section; 121. Water tank; 122. Water pump; 123. Water inlet pipe; 124. First water valve; 125. Return pipe; 126. Second water valve; 127. Heat dissipation port; 128. Protective net; 13. Drain pipe; 14. First control valve; 15. Controller; 16. Exhaust pipe; 17. Second control valve. Detailed Implementation
[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0019] Please refer to the following: Figure 1 , Figure 2 and Figure 3 ,in, Figure 1 A schematic diagram of a preferred embodiment of a high-efficiency U-tube volumetric heat exchanger provided by this utility model;
[0020] Figure 2 This is a schematic diagram of the connecting pipe, end cap, and cleaning assembly in this utility model;
[0021] Figure 3 This is a schematic diagram of the cooling water circulation section in this utility model.
[0022] A high-efficiency U-tube volumetric heat exchanger includes: a volumetric heat exchanger body 1, a support 2 at the lower part of the volumetric heat exchanger body 1, a connecting pipe 3 on the side of the volumetric heat exchanger body 1, a cap 4 fixedly connected to the end of the connecting pipe 3, an inlet end 6 and an outlet end 7 on the cap 4, multiple sets of U-shaped heat exchange tubes 8 arranged inside the connecting pipe 3, the U-shaped heat exchange tubes 8 extending into the interior of the volumetric heat exchanger body 1, and a cleaning device on the outer side of the cap 4. The component 9 extends into the interior of the connecting pipe 3 to clean the surface of the U-shaped heat exchange tube 8. A top cover 10 is provided on the upper part of the volumetric heat exchanger body 1. A cooling water circulation section 12 is provided on the side of the volumetric heat exchanger body 1 away from the connecting pipe 3 to cool and circulate the cooling water. A drain pipe 13 is provided at the bottom of the volumetric heat exchanger body 1. A first control valve 14 is provided on the drain pipe 13. A controller 15 is provided on the outside of the volumetric heat exchanger body 1.
[0023] High-temperature liquid is introduced into the inlet end 6 and enters the U-shaped heat exchange tube 8. It is then cooled by the cooling water in the main body 1 of the volumetric heat exchanger. After the cooling process is completed, the cooling water is carried back by the cooling water circulation section 12 for cooling and waiting to be recycled. The cleaning component 9 cleans the surface of the U-shaped heat exchange tube 8 during operation to avoid a decrease in heat exchange efficiency.
[0024] The inlet end 6 and the outlet end 7 are located on the upper and lower sides of the end cap 4, respectively. A partition 5 is fixedly connected inside the end cap 4, and the cleaning component 9 is located below the partition 5.
[0025] The design of the end cap 4, the liquid inlet end 6, and the liquid outlet end 7 fixedly connected to the end of the connecting pipe 3, and the separation of the flow path by the partition 5, can realize the effective diversion and mixing control of hot and cold fluids.
[0026] The cleaning assembly 9 includes a drive motor 91, the output end of which is connected to a transmission shaft 92. A plurality of fixed seats 93 are fixedly connected to a section of the transmission shaft 92 extending to the connecting pipe 3. A plurality of evenly distributed cleaning brushes 94 are fixedly connected to the fixed seats 93.
[0027] The cleaning assembly 9 drives the drive shaft 92 and the cleaning brush 94 on the fixed base 93 to rotate via the drive motor 91. This can periodically or in real time remove deposits or scale from the surface of the U-shaped heat exchange tube 8, preventing a decrease in heat transfer efficiency due to dirt accumulation, extending the service life of the heat exchange tube, and reducing the frequency of downtime maintenance.
[0028] The cooling water circulation section 12 includes a water tank 121, on which a water pump 122 is installed. The water pump 122 is connected to an inlet pipe 123 and a return pipe 125, and the other end is connected to the interior of the volumetric heat exchanger body 1. A first water valve 124 is installed on the inlet pipe 123, and a second water valve 126 is installed on the return pipe 125.
[0029] The cooling water circulation section 12 consists of a water tank 121, a water pump 122, an inlet pipe 123, and a return pipe 125, forming a closed-loop system. With the assistance of the first water valve 124 and the second water valve 126 to regulate the flow rate, the cooling water can be efficiently recycled, reducing water consumption. At the same time, by controlling the dynamic flow of cooling water, the internal temperature stability of the heat exchanger is maintained, improving overall energy efficiency.
[0030] The water tank 121 has a heat dissipation vent 127 on its upper part. There are two heat dissipation vents 127 located on both sides of the water pump 122. A protective net 128 is fixedly connected to the heat dissipation vent 127 to prevent external debris from entering the water tank 121.
[0031] The heat dissipation vent 127 on the water tank 121 can accelerate the natural heat dissipation of the cooling water during circulation, reducing the heat load of the water pump 122 during operation; the protective net 128 effectively blocks external dust or debris from entering the water tank, avoiding water pollution or pipe blockage, and ensuring the cleanliness of the cooling system.
[0032] The top cover 10 is equipped with a temperature measuring element 11 and an exhaust pipe 16. The exhaust pipe 16 is equipped with a second control valve 17 to monitor the internal temperature of the volumetric heat exchanger body 1 in real time. At the same time, the second control valve 17 is opened to balance the air pressure when the air pressure is high.
[0033] The temperature measuring element 11 on the top cover 10 can monitor the working temperature inside the volumetric heat exchanger body 1, providing data support for the control system and facilitating timely adjustment of operating parameters; the exhaust pipe 16 and the second control valve 17 can automatically or manually release gas when the internal pressure is too high, preventing structural damage or safety hazards caused by abnormal pressure.
[0034] The working principle of the high-efficiency U-tube volumetric heat exchanger provided by this utility model is as follows:
[0035] High-temperature liquid is introduced into the inlet end 6 and enters the U-shaped heat exchange tube 8. It is then cooled by the cooling water in the main body 1 of the volumetric heat exchanger. After the cooling process is completed, the cooling water is carried back by the cooling water circulation section 12 for cooling and waiting to be recycled. The cleaning component 9 cleans the surface of the U-shaped heat exchange tube 8 during operation to avoid a decrease in heat exchange efficiency.
[0036] Compared with related technologies, the high-efficiency U-tube volumetric heat exchanger provided by this utility model has the following beneficial effects:
[0037] The inner baffle 5 of the end cap 4 optimizes the flow and mixing path of hot and cold fluids, improving heat exchange efficiency; the cleaning component 9 can remove the dirt deposited on the surface of the U-shaped heat exchange tube 8, reducing thermal resistance and extending service life; the cooling water circulation section 12 realizes cooling water circulation and natural heat dissipation, reducing energy consumption and water consumption; the temperature measuring element 11 and the exhaust pipe 16 monitor and adjust the internal temperature and pressure in real time to ensure safe operation.
[0038] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A high-efficiency U-tube volumetric heat exchanger, characterized in that, include: The volumetric heat exchanger body includes a support frame at its lower part, a connecting pipe on its side, and a cap fixedly connected to the end of the connecting pipe. The cap has an inlet and an outlet. Multiple sets of U-shaped heat exchange tubes are installed inside the connecting pipe, extending into the interior of the volumetric heat exchanger body. A cleaning assembly is installed on the outside of the cap and extends into the interior of the connecting pipe to clean the surface of the U-shaped heat exchange tubes. A top cover is installed on the upper part of the volumetric heat exchanger body. A cooling water circulation section is installed on the side of the volumetric heat exchanger body away from the connecting pipe to cool and circulate the cooling water. A drain pipe is installed at the bottom of the volumetric heat exchanger body, and a first control valve is installed on the drain pipe. A controller is installed on the outside of the volumetric heat exchanger body.
2. The high-efficiency U-tube volumetric heat exchanger according to claim 1, characterized in that, The inlet and outlet are located on the upper and lower sides of the end cap, respectively. A partition is fixedly connected inside the end cap, and the cleaning assembly is located below the partition.
3. A high-efficiency U-tube volumetric heat exchanger according to claim 2, characterized in that, The cleaning assembly includes a drive motor, the output end of which is connected to a transmission shaft. A number of fixed seats are fixedly connected to a section of the transmission shaft extending to a connecting pipe, and a number of evenly distributed cleaning brushes are fixedly connected to the fixed seats.
4. A high-efficiency U-tube volumetric heat exchanger according to claim 1, characterized in that, The cooling water circulation section includes a water tank, on which a water pump is installed. The water pump is connected to an inlet pipe and a return pipe, and the other end of the pump is connected to the interior of the volumetric heat exchanger body. A first water valve is installed on the inlet pipe, and a second water valve is installed on the return pipe.
5. A high-efficiency U-tube volumetric heat exchanger according to claim 4, characterized in that, The water tank has two vents located on either side of the water pump. A protective net is fixedly connected to each vent to prevent external debris from entering the water tank.
6. A high-efficiency U-tube volumetric heat exchanger according to claim 1, characterized in that, The top cover is equipped with a temperature measuring device and an exhaust pipe. The exhaust pipe is equipped with a second control valve to monitor the internal temperature of the volumetric heat exchanger body in real time. At the same time, the second control valve is opened to balance the air pressure when the air pressure is high.