A high-efficiency heat exchange device integrating steam compressor and heat pump
Through the cooperation of the flow guide block and the vibration component, the problem of uneven distribution of air flow and heat field in the heat exchange device is solved, efficient and stable heat exchange effect is achieved, and the energy utilization efficiency of the steam compressor and the heat pump is improved.
Patent Information
- Application Number
- CN202510797234.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-16
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2045-06-16
AI Technical Summary
In the existing heat exchange device, the airflow structure and heat field are unevenly distributed, resulting in uneven heat distribution, affecting the heat exchange efficiency, and the condensate film increases thermal resistance and reduces overall performance.
The airflow is evenly dispersed by a flow guide, and the heat exchange tube is periodically tapped under the airflow drive through the vibrating assembly to destroy the condensate membrane, and combine the soft metal strike part and the return spring to achieve the stability and flexibility of vibration, reducing thermal resistance.
The contact area and efficiency of the heat exchange tube and steam is improved, the thermal resistance is reduced, the heat exchange effect is enhanced, the service life of the heat exchange tube is extended, and the energy is achieved is achieved.
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Figure CN120333189B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of energy supply equipment, and in particular to a high-efficiency heat exchange device integrating a steam compressor and a heat pump. Background Art
[0002] In the process of industrial production and energy utilization, the heat pump system extracts heat from the low-temperature waste heat source, and raises the heat to a medium temperature level through the compression and condensation process, which serves as a preheating heat source for the steam compressor system. Secondly, the steam compressor uses this medium-temperature thermal energy to heat or increase the pressure of the low-pressure steam, further increasing its available energy level and realizing the cascade utilization of energy. Subsequently, in the condensation heat exchange link, the high-temperature and high-pressure steam discharged by the steam compressor can transfer heat to the process hot end through the heat exchanger, while providing a driving heat source for the heat pump evaporator. In the existing technology, the heat exchange efficiency is low and the traditional heat exchange structure is difficult to achieve uniform heat transfer, which is prone to local thermal stress problems, resulting in uneven heat distribution and affecting the heat exchange effect.
[0003] The currently disclosed Chinese patent authorization announcement number CN118602633B discloses an air-source heat pump heat exchange device, comprising a first heat exchange component and a second heat exchange component, each of which comprises a housing, an evaporator, a multi-stage compressor, a condenser, an expansion valve, a phase change material module, and a control system. The evaporator, multi-stage compressor, four-way valve, condenser, and expansion valve are all mounted in the housing. The control end of the control system is electrically connected to the evaporator, multi-stage compressor, condenser, and expansion valve. The evaporator absorbs low-temperature heat from the outside air via a heat dissipation fan. The four-way valve is connected to the condenser / evaporator of the indoor unit on one side and to the evaporator / condenser of the outdoor unit on the other side. The multi-stage compressor is connected to the evaporator via a pipeline, receives low-temperature, low-pressure refrigerant gas from the evaporator, and compresses the refrigerant gas into high-temperature, high-pressure gas. The condenser is mounted on the inner wall of the housing away from the evaporator, and the expansion valve is mounted on the high-pressure liquid refrigerant pipeline connected to the condenser. The expansion valve rapidly reduces the pressure of the high-pressure liquid refrigerant as it passes through, converting it into a low-temperature, low-pressure liquid.
[0004] According to the aforementioned patent, the patent can store and release heat by introducing phase change materials, releasing stored heat in low-temperature environments, improving the heating effect, and enhancing the system's ability to adapt to extreme environments. However, the layout of the components in the box is fixed, and there is a lack of optimized design for airflow organization and thermal field distribution, which can easily cause localized uneven heat exchange and increased thermal resistance, affecting the overall heat exchange performance. Therefore, there is a need for an efficient heat exchange device that integrates a steam compressor and a heat pump, which can evenly distribute airflow and ensure uniform heat transfer. Summary of the Invention
[0005] In response to the problems existing in the existing technology, a high-efficiency heat exchange device integrating a steam compressor and a heat pump is provided. The concentrated airflow is evenly dispersed through a guide block to expand the contact area between the steam and the heat exchange tube. At the same time, the vibration component periodically strikes the heat exchange tube under the drive of the airflow, destroying the condensed water film on the outer surface, reducing thermal resistance, and improving the heat absorption effect of the heat exchange tube.
[0006] The heat exchanger of claim 1, wherein the heat exchanger has a plurality of heat exchange fins arranged at equal intervals along the direction of the heat exchanger's flow path. The heat exchanger has a plurality of heat exchange fins arranged at equal intervals along the direction of the heat exchanger's flow path. The heat exchanger has a plurality of heat exchange fins arranged at equal intervals along the direction of the heat exchanger's flow path. The heat exchanger has a plurality of heat exchange fins arranged at equal intervals along the direction of the heat exchanger. The heat exchanger has a plurality of heat exchange fins arranged at equal intervals along the direction of the heat exchanger.
[0007] Preferably, the trigger member has an impeller that is respectively rotatably arranged on the heat exchange chamber body and a pressure plate that cooperates with the impeller. The impeller is located in the air inlet channel. The pressure plate has a downward pressure portion that cooperates with the impeller and an upward portion that cooperates with the vibrator. When the impeller rotates under the action of the airflow and causes the downward pressure portion to be subjected to the pressure of the impeller, the upward portion simultaneously puts pressure on the vibrator, so that the vibrator applies a knocking force to the heat exchange tube.
[0008] Preferably, a first return spring is provided between the pressure plate and the heat exchange chamber. When the impeller applies pressure to the downward pressure portion of the pressure plate, the upwardly tilted portion of the pressure plate is in an upward swing state, and the first return spring is in a stretched state.
[0009] Preferably, the vibrating member has a knocking portion and a transmission plate that abuts against the upturned portion. A knocking portion is provided between every two adjacent heat exchange fins and corresponding to each section of the heat exchange tube. A transmission rod is fixed between all the knocking portions between every two adjacent heat exchange fins, and the lower ends of all the transmission rods abut against the transmission plate.
[0010] Preferably, the knocking part is a block structure, and a drainage channel for accommodating the corresponding pipe section of the heat exchange tube is formed between every two adjacent knocking parts. When all the knocking parts move synchronously under the drive of the transmission plate, each pipe section of the heat exchange tube is in a periodically knocked state, so that the entire heat exchange tube receives vibration energy evenly.
[0011] Preferably, a guide plate fixedly connected to the upper ends of all transmission rods is provided on the heat exchange chamber body, and a second return spring is provided between the guide plate and the heat exchange chamber body. When the upward-curved portion of the pressure plate is in an upward swing state, the guide plate moves upward synchronously driven by the transmission rod, and the second return spring is in a stretched state at this time.
[0012] Preferably, the impeller has a wheel body and a plurality of blade structures evenly distributed around its circumference. The rotation direction of the impeller is parallel to the ventilation direction of the air inlet channel. When the impeller rotates, the downward pressure portion on the pressure plate is in a pressure state of periodic contact with the blade structure.
[0013] Preferably, the inner wall of the heat exchange chamber has a slope for fixing the guide block and is inclined toward the direction of the heat exchange tube. The channel direction of the air inlet channel is flush with the slope. When the heat exchange gas impacts the guide block, the heat exchange gas disperses and flows along the slope direction, forming an airflow distribution that quickly covers the surface of the heat exchange tube.
[0014] Preferably, the guide block is a conical structure, and the pointed cone portion of the guide block faces the air inlet channel. When the heat exchange gas impacts the guide block, the heat exchange gas diffuses evenly around along the conical surface of the guide block with the pointed cone portion as the force point, forming an airflow distribution that evenly covers the surface of the heat exchange tube.
[0015] Preferably, a plurality of the guide blocks are evenly distributed on the heat exchange chamber along the flow path of the heat exchange tube at equal intervals, each guide block is correspondingly provided with an air inlet channel, and a gap for the heat exchange gas to circulate is left between every two adjacent guide blocks.
[0016] Compared with the prior art, the present invention has the following advantages:
[0017] 1. This invention achieves efficient and stable heat exchange between the heat exchange tube and waste heat steam through the cooperation between the guide block and the vibration assembly. That is, the guide block evenly disperses the concentrated impact of the airflow, thereby increasing the contact area between the steam and the heat exchange tube.
[0018] Simultaneously, driven by airflow, the vibrating assembly periodically strikes the heat exchange tubes, breaking up the condensate film formed on their outer surfaces and reducing thermal resistance. During this process, a trigger lever, leveraging the linkage between the impeller and the pressure plate, automatically starts and stops the vibrating element without external power. Furthermore, a primary return spring ensures the continuity and stability of the vibration action, effectively enhancing heat transfer efficiency.
[0019] 2. This invention utilizes the linkage of an impeller, a pressure plate, a transmission rod, and a striking unit, combined with the forces of a first and second return springs, to achieve periodic, automatic destruction of the condensate film on the outer surface of the heat exchange tube. During this process, the impeller rotates under the influence of the airflow, causing the pressure plate to oscillate, pushing the transmission rod and triggering the striking unit to synchronously strike the heat exchange tube.
[0020] While the soft metal striking part ensures effective transmission of vibration energy, it also avoids mechanical damage to the heat exchange tubes, such as scratches and indentations, caused by rigid contact. This striking action combines strength and flexibility, meeting the requirements of periodic vibration while ensuring the structural integrity of the heat exchange tubes, thereby improving their operational stability and service life.
[0021] 3. The present invention achieves uniform distribution and efficient flow of heat exchange gas in the heat exchange bin by setting a slope structure and a cone guide block in the heat exchange bin, and combining multi-point air intake, partitioned guide and gaps formed between the guide blocks.
[0022] Because the slope is aligned with the air intake direction, it guides airflow smoothly into the heat exchanger. The conical guide blocks disperse the concentrated airflow along the conical surface, expanding coverage. The gaps between adjacent guide blocks promote complementary air flow and prevent localized stagnation. This effectively improves the contact efficiency between the waste heat steam and the heat exchange tubes, enhancing the condensation heat transfer effect while reducing flow resistance, ensuring the stability and efficiency of the heat exchange process. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of a high-efficiency heat exchange device integrating a steam compressor and a heat pump applied for by the present invention.
[0024] Figure 2 It is a planar cross-sectional view of a high-efficiency heat exchange device integrating a steam compressor and a heat pump according to the present invention.
[0025] Figure 3 It is a three-dimensional structural cross-sectional view of a high-efficiency heat exchange device integrating a steam compressor and a heat pump applied for by the present invention.
[0026] Figure 4 It is a three-dimensional structural schematic diagram of heat exchange tubes and heat exchange fins of a high-efficiency heat exchange device integrating a steam compressor and a heat pump applied for by the present invention.
[0027] Figure 5 It is a partial planar cross-sectional view of a high-efficiency heat exchange device integrating a steam compressor and a heat pump applied for by the present invention.
[0028] Figure 6 It is a partial three-dimensional structural cross-sectional view of a high-efficiency heat exchange device integrating a steam compressor and a heat pump applied for by the present invention.
[0029] Figure 7 This invention is applied for Figure 6 A magnified schematic diagram of .
[0030] Figure 8 It is a partial three-dimensional structural cross-sectional view of a heat transfer mechanism of a high-efficiency heat exchange device integrating a steam compressor and a heat pump according to the present invention.
[0031] Figure 9 The present invention is a planar cross-sectional view of a guide block and an air inlet channel of a high-efficiency heat exchange device integrating a steam compressor and a heat pump.
[0032] Figure 10 It is a three-dimensional structural cross-sectional view of a guide block and an air inlet channel of a high-efficiency heat exchange device integrating a steam compressor and a heat pump applied for by the present invention.
[0033] The numbers in the figure are: 1. heat exchange tube; 2. heat exchange fin; 3. heat exchange chamber; 31. air inlet channel; 32. air outlet grille; 4. guide block; 5. vibration assembly; 51. vibrating member; 511. knocking part; 5111. drainage channel; 512. transmission plate; 5121. transmission rod; 513. guide plate; 5131. second return spring; 5132. guide shaft; 52. trigger member; 521. impeller; 5211. wheel body; 5212. blade structure; 522. pressure plate; 5221. downward pressure part; 5222. upward part; 5223. first return spring. DETAILED DESCRIPTION
[0034] In order to further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.
[0035] See also Figure 1-Figure 7 As shown, a high-efficiency heat exchange device integrating a steam compressor and a heat pump includes a heat exchange tube 1 forming a continuously curved flow path, a plurality of heat exchange fins 2 are provided on the heat exchange tube 1 at equal intervals along the flow path direction, and a heat exchange chamber 3 for accommodating the heat exchange tube 1. The heat exchange chamber 3 has an air inlet channel 31 and an air outlet grille 32. The heat exchange chamber 3 is provided with a heat transfer mechanism for uniformly transferring the heat exchange gas to the heat exchange tube 1. The heat transfer mechanism includes a guide arranged opposite the air inlet channel 31 for dispersing the heat exchange gas. Block 4 and a vibration component 5 for destroying the condensed water film formed on the outer surface of the heat exchange tube 1, the vibration component 5 includes a vibration member 51 capable of knocking the heat exchange tube 1 and a trigger member 52 arranged between the air inlet channel 31 and the vibration member 51. When the air inlet channel 31 is in a ventilated state, the trigger member 52 is in a started state, and at the same time, the heat exchange gas impact on the guide block 4 is in a dispersed state. When the trigger member 52 is in the started state, the vibration member 51 is in a vibrating state of periodically knocking the heat exchange tube 1, so that the water film attached to the outer surface of the heat exchange tube 1 is destroyed.
[0036] The air inlet passage 31 is used to introduce high-temperature gas from a steam compressor.
[0037] The gas outlet grille 32 is used to evenly discharge the gas after heat exchange.
[0038] When the high-efficiency heat exchange device integrating the steam compressor and the heat pump is in operation, energy recovery and reuse are achieved through the efficient heat exchange process between the cooling water and the waste heat steam circulating through the heat exchange tube 1. At this time, cooling water from the external circulation is introduced into the heat exchange tube 1, while low-temperature waste heat steam discharged from the industrial process is introduced into the heat exchange chamber 3. The waste heat steam enters the heat exchange chamber 3 through the air inlet channel 31 and exchanges heat with the heat exchange tube 1 arranged therein during the flow process. Since the heat exchange tube 1 adopts a continuously bent structural design and a plurality of heat exchange fins 2 are arranged on its outer wall at equal intervals along the flow path direction, not only the heat exchange area is significantly increased, but also the fluid disturbance is effectively enhanced, thereby improving the overall heat transfer efficiency.
[0039] During the heat exchange process, the waste heat steam first impacts the guide block 4, positioned opposite the air inlet channel 31. This block disperses the previously concentrated steam flow into multiple, evenly distributed streams, ensuring more comprehensive coverage of the surface of the heat exchange tube 1. This avoids uneven heat transfer in localized areas due to uneven steam flow, thereby ensuring a more stable temperature distribution throughout the heat exchange chamber 3. Simultaneously, cooling water continuously flows within the heat exchange tube 1, absorbing the heat released by the waste heat steam and gradually increasing its own temperature. The steam condenses into liquid water on the outer wall of the heat exchange tube 1, which adheres to the tube surface to form a water film.
[0040] The presence of this water film will significantly increase the thermal resistance between the steam and the heat exchange tube 1, reducing the heat exchange efficiency. To this end, when the waste heat steam enters the heat exchange bin 3 through the air inlet channel 31 and impacts the guide block 4, the trigger 52 activates the vibrator 51 through the force of the airflow, prompting the vibrator 51 to periodically knock on the heat exchange tube 1, causing the heat exchange tube 1 to vibrate slightly, thereby destroying the condensed water film attached to its outer surface. The destroyed water film re-condenses into fine droplets, detaches from the tube wall and is discharged with the airflow or gravity, thereby greatly reducing the thermal resistance of the water film and improving the overall heat exchange efficiency. The channel for discharging droplets on the heat exchange bin 3 is not shown in the figure.
[0041] After absorbing the heat from the waste heat steam, the cooling water's temperature rises and it then flows into the heat pump system's evaporator, serving as a low-temperature heat source for the heat pump to extract. The heat pump, through the compressor, raises this low-grade heat energy to a higher temperature level for subsequent use in process heating, hot water supply, or other heat-demanding applications. The steam compressor also plays a role in this process, mechanically compressing some of the waste heat steam, raising its pressure and temperature to a higher usable energy level. The heat is then reintroduced into a heat exchanger to further release the heat, thereby achieving cascaded utilization of the waste heat steam and maximizing energy recovery.
[0042] The entire heat exchange device integrates a steam compressor, heat pump, and efficient heat exchange structure to create a closed-loop energy recovery system. The heat from the waste steam is transferred to the cooling water via heat exchange pipe 1. The cooling water then transfers the heat to the heat pump system for further utilization. The steam compressor further enhances the heat recovery capability of the waste steam, reducing energy waste.
[0043] See also Figure 2-Figure 7 As shown, the trigger member 52 has an impeller 521 that is respectively rotatably arranged on the heat exchange chamber body 3 and a pressure plate 522 that cooperates with the impeller 521. The impeller 521 is located in the air inlet channel 31. The pressure plate 522 has a downward pressure portion 5221 that cooperates with the impeller 521 and an upward portion 5222 that cooperates with the vibrator 51. When the impeller 521 rotates under the action of the airflow, causing the downward pressure portion 5221 to be subjected to the pressure of the impeller 521, the upward portion 5222 simultaneously puts pressure on the vibrator 51, so that the vibrator 51 applies a knocking force to the heat exchange tube 1.
[0044] When waste heat steam enters the heat exchange chamber 3 through the air inlet passage 31, it first acts on the impeller 521 located within the air inlet passage 31. As the airflow continues to flow in, the impeller 521 begins to rotate under the impact of the steam. This rotational motion then drives the pressure plate 522, which is tightly coupled to the impeller.
[0045] When the impeller 521 rotates, it applies pressure to the downward pressure portion 5221 of the pressure plate 522, causing the pressure plate 522 to swing slightly about the rotation point, thereby causing the upward portion 5222 to lift upward and compress the vibrating member 51. The vibrating member 51 is periodically displaced by the upward portion 5222, thereby striking the heat exchange tube 1. Because the impeller 521 rotates under the action of continuous airflow, the pressure on the downward pressure portion 5221 changes periodically, causing the upward portion 5222 to swing up and down regularly, thereby driving the vibrating member 51 to periodically strike the heat exchange tube 1.
[0046] See also Figure 2-Figure 7 As shown, a first return spring 5223 is provided between the pressure plate 522 and the heat exchange chamber body 3. When the impeller 521 applies pressure to the lower pressure part 5221 of the pressure plate 522, the upward part 5222 of the pressure plate 522 is in an upward swing state, and the first return spring 5223 is in a stretched state.
[0047] When the impeller 521 rotates under the drive of the airflow in the air inlet passage 31 and applies pressure to the downward pressing portion 5221 of the pressure plate 522, the pressure plate 522 swings about its pivotal connection point with the heat exchange chamber 3, causing the upwardly tilted portion 5222 to rise upward, entering a working state in cooperation with the vibrating member 51. At this time, the first return spring 5223 disposed between the pressure plate 522 and the heat exchange chamber 3 is stretched, storing a certain amount of elastic potential energy.
[0048] The stretching action of the first return spring 5223 provides a restoring force for the subsequent return of the pressure plate 522. This ensures that when the pressure of the impeller 521 on the downward pressure portion 5221 disappears, the pressure plate 522 can quickly return to its initial position due to the rebound action of the first return spring 5223, thereby driving the upward portion 5222 out of the state of exerting pressure on the vibrating member 51. This achieves the periodic driving and automatic resetting of the vibrating member 51 by the trigger member 52, ensuring the stability and continuity of the striking action of the vibrating member 51, continuously and effectively destroying the condensed water film during the heat exchange process, and improving heat exchange efficiency.
[0049] See also Figure 2-Figure 7 As shown, the vibrating member 51 has a striking portion 511 and a transmission plate 512 that abuts against the upturned portion 5222. A striking portion 511 is provided between every two adjacent heat exchange fins 2 and corresponding to each section of the heat exchange tube 1. A transmission rod 5121 is fixedly provided between all the striking portions 511 between every two adjacent heat exchange fins 2, and the lower ends of all the transmission rods 5121 abut against the transmission plate 512.
[0050] When the upwardly tilted portion 5222 of the pressure plate 522 swings upward under the drive of the impeller 521 and applies pressure to the transmission plate 512 of the vibrating member 51, the transmission plate 512 is subjected to an upward thrust, and drives all the transmission rods 5121 fixedly connected thereto to move upward synchronously. Since the lower end of each transmission rod 5121 is against the transmission plate 512, when the transmission plate 512 is lifted up, the transmission rod 5121 as a whole rises therewith and transmits power to each knocking portion 511 connected thereto. As the transmission rod 5121 rises, each knocking portion 511 applies an instantaneous knocking force to the heat exchange tube 1 at the corresponding position, causing the heat exchange tube 1 to generate local micro-vibrations.
[0051] During the transmission process, multiple knocking parts 511 are linked through the transmission rod 5121 to ensure that each section of the heat exchange tube 1 can be synchronously knocked periodically under the continuous action of the airflow, thereby maintaining the efficient and stable heat exchange performance of the entire heat exchange device.
[0052] See also Figure 2-Figure 7As shown, the knocking part 511 is specifically a block structure, and a drainage channel 5111 for accommodating the corresponding pipe section of the heat exchange tube 1 is formed between every two adjacent knocking parts 511. When all the knocking parts 511 move synchronously under the drive of the transmission plate 512, each pipe section of the heat exchange tube 1 is in a periodically knocked state, so that the entire heat exchange tube 1 receives vibration energy evenly.
[0053] The striking portion 511 is made of a soft metal material with low hardness and good ductility. This allows it to effectively transmit vibration energy when striking the heat exchange tube 1, disrupting the condensate film on its outer surface while preventing mechanical damage such as scratches or indentations to the heat exchange tube 1. Compared to hard metals, soft metals are more suitable for the striking portion 511 that directly contacts the heat exchange tube 1, helping to extend the service life of the heat exchange tube 1 and maintain stable heat exchange performance.
[0054] With the synchronized action of all the tapping components 511, each section of the heat exchange tube 1 is periodically tapped. When the waste heat steam enters the heat exchange chamber 3 from the air inlet channel 31, it is initially dispersed by the guide block 4 and flows to the various heat exchange areas. The diversion channels 5111 further guide the steam evenly through the outer surface of the heat exchange tube 1, ensuring stable steam flow in the gaps between the heat exchange fins 2. This not only improves the uniformity of the steam flow but also enhances the contact efficiency between the steam and the heat exchange tube 1, allowing the steam to fully condense on the surface of the heat exchange tube 1 and release heat.
[0055] See also Figure 2-Figure 7 As shown, the heat exchange chamber body 3 is provided with a guide plate 513 fixedly connected to the upper ends of all transmission rods 5121, and a second return spring 5131 is provided between the guide plate 513 and the heat exchange chamber body 3. When the upward portion 5222 of the pressure plate 522 is in an upward swing state, the guide plate 513 moves upward synchronously driven by the transmission rod 5121, and at this time the second return spring 5131 is in a stretched state.
[0056] The guide plate 513 has a plurality of guide openings opened vertically, and the heat exchange chamber body 3 is provided with a guide shaft 5132 passing through each guide opening.
[0057] When the upwardly tilted portion 5222 of the pressure plate 522 swings upward and pushes the transmission plate 512, the transmission rod 5121 moves upward synchronously, driven by the transmission plate 512, and further transmits the motion to the guide plate 513 fixedly connected to its upper end. At this time, the guide plate 513 as a whole moves upward along the heat exchange chamber 3. The multiple guide openings on the guide plate 513 form a sliding fit with the guide shaft 5132 fixed to the heat exchange chamber 3, ensuring that the guide plate 513 remains stable and does not deviate during its upward movement.
[0058] At the same time, the second return spring 5131 disposed between the guide plate 513 and the heat exchange chamber 3 is stretched, storing elastic potential energy and providing a restoring force for the subsequent reset of the striking portion 511. When the trigger member 52 releases pressure, the second return spring 5131 acts to rapidly reset the guide plate 513 and the transmission rod 5121 and the vibrating member 51, preparing for the next knocking cycle. This ensures the continuity and reliability of the entire vibration process of destroying the water film.
[0059] See also Figure 7-10 As shown, the impeller 521 has a wheel body 5211 and a plurality of blade structures 5212 evenly distributed around its circumference. The rotation direction of the impeller 521 is parallel to the ventilation direction of the air inlet channel 31. When the impeller 521 rotates, the downward pressure portion 5221 on the pressure plate 522 is in a pressure state of periodic contact with the blade structure 5212.
[0060] When waste heat steam enters the heat exchange chamber 3 along the air inlet passage 31 and impacts the blade structures 5212 of the impeller 521, the airflow causes the impeller 521 to rotate about its axis of rotation. Because the impeller 521's rotation direction is parallel to the ventilation direction of the air inlet passage 31, the airflow evenly propels each blade structure 5212, achieving stable, continuous rotational motion. As the impeller 521 continues to rotate, its blade structures 5212 periodically come into contact with the downward pressure portion 5221 on the pressure plate 522, subjecting the downward pressure portion 5221 to intermittent pressure.
[0061] This periodic contact process drives the pressure plate 522 to swing about its pivot point, driving the upwardly tilted portion 5222 to move up and down. Combined with the forces of the first return spring 5223 and the second return spring 5131, this triggers the vibrating element 51 to periodically strike the heat exchange tube 1. By directly driving the trigger element 52 using airflow energy, without the need for an external power source, the condensate film destruction process is automatically controlled and efficiently executed.
[0062] See also Figure 7-10 As shown, the inner wall of the heat exchange chamber 3 has a slope for fixing the guide block 4 and is inclined toward the direction of the heat exchange tube 1. The channel direction of the air inlet channel 31 is flush with the slope. When the heat exchange gas impacts the guide block 4, the heat exchange gas disperses and flows along the slope direction, forming an airflow distribution that quickly covers the surface of the heat exchange tube 1.
[0063] When the heat exchange gas enters the heat exchange chamber 3 through the air inlet passage 31, its flow direction remains aligned with the sloped surface provided on the inner wall of the heat exchange chamber 3. As the heat exchange gas impacts the surface of the guide block 4 at high speed, the gas is guided and dispersed along the sloped surface. Because the slope is positioned toward the heat exchange tube 1, the gas rapidly expands due to the combined effects of the guide block 4 and the slope, forming a uniform airflow distribution covering the outer surface of the heat exchange tube 1.
[0064] This effectively avoids dead corners or localized concentrations of gas during gas flow, improving the contact efficiency between the waste heat steam and the heat exchange tube 1, allowing the steam to more fully condense and release heat on the surface of the heat exchange tube 1, thereby enhancing the overall heat exchange effect. Furthermore, the alignment of the slope with the direction of the air inlet channel 31 reduces gas flow resistance.
[0065] See also Figure 7-10 As shown, the guide block 4 is specifically a cone structure, and the pointed cone portion of the guide block 4 faces the air inlet channel 31. When the heat exchange gas impacts the guide block 4, the heat exchange gas diffuses evenly around along the cone surface of the guide block 4 with the pointed cone portion as the force point, forming an airflow distribution that evenly covers the surface of the heat exchange tube 1.
[0066] When the heat exchange gas enters the heat exchange chamber 3 at high speed from the inlet passage 31, it first impacts the guide block 4, positioned opposite the inlet passage 31. Because the guide block 4 is a conical structure, its pointed tip serves as the initial force point, directly facing the incoming flow. After impacting the pointed tip, the heat exchange gas diffuses evenly in all directions along the inclination of the cone, avoiding concentrated or biased flow. As the gas expands outward along the cone, the flow is effectively directed to the surface area of the heat exchange tube 1, forming a wide-coverage, evenly distributed airflow field.
[0067] It not only improves the contact efficiency between the waste heat steam and the heat exchange tube 1, allowing the steam to fully condense and release heat on the outer surface of the heat exchange tube 1, but also ensures that the heat exchange gas can be quickly and evenly distributed after entering the heat exchange chamber 3, thereby providing a good flow field foundation for the subsequent efficient heat exchange process.
[0068] See also Figure 7-10 As shown, a plurality of guide blocks 4 are evenly distributed on the heat exchange chamber 3 along the flow path direction of the heat exchange tube 1, each guide block 4 is correspondingly provided with an air inlet channel 31, and a gap is left between every two adjacent guide blocks 4 for the heat exchange gas to circulate.
[0069] When the heat exchange gas enters the heat exchange chamber 3 through each air inlet channel 31, the heat exchange gas impacts the corresponding guide block 4 and diffuses around along the cone surface under the guidance of the cone structure, forming an airflow that evenly covers the surface of the heat exchange tube 1.
[0070] At the same time, a certain gap is reserved between each pair of adjacent guide blocks 4, serving as a channel for the further flow and distribution of the heat exchange gas. This allows the gas to flow and complement each other between the multiple guide blocks 4, preventing airflow stagnation or uneven distribution in local areas. This multi-point air intake, zoned flow diversion, and gap connectivity effectively improves the flow uniformity and heat exchange efficiency of the heat exchange gas throughout the heat exchange chamber 3, ensuring the stability and efficiency of the condensation heat exchange process in each section of the heat exchange tube 1.
[0071] The present invention achieves efficient and stable heat exchange of waste heat steam by the heat exchange tube 1 through the synergistic effect of the guide block 4 and the vibration assembly 5. During this process, the guide block 4 evenly disperses the concentrated airflow, expanding the contact area between the steam and the heat exchange tube 1. At the same time, driven by the airflow, the vibration assembly 5 periodically strikes the heat exchange tube 1, destroying the condensed water film on the outer surface and reducing thermal resistance. Specifically, the impeller 521 is linked with the pressure plate 522 to achieve automatic start and stop of the vibration element 51 without external power, and the first return spring 5223 and the second return spring 5131 ensure the continuity and stability of the action.
[0072] The soft metal striking portion 511 effectively transmits vibration energy while preventing mechanical damage to the heat exchange tube 1, thus improving durability. Combined with the slope, conical guide block 4, and multi-point air intake, the uniformity of airflow distribution within the heat exchange chamber 3 is further optimized, enhancing heat exchange efficiency and making it suitable for high-efficiency heat exchange scenarios such as industrial waste heat recovery.
[0073] The above embodiments merely represent one or more embodiments of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of protection of the present invention. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.
Claims
1. A high-efficiency heat exchange device integrating a steam compressor and a heat pump, comprising a heat exchange tube forming a continuously curved flow path, wherein the heat exchange tube is provided with a plurality of heat exchange fins at equal intervals along the flow path; It is characterized by: The heat exchange chamber further comprises a heat exchange chamber for accommodating the heat exchange tubes, the heat exchange chamber having an air inlet channel and an air outlet grille, and a heat transfer mechanism for uniformly transferring the heat exchange gas to the heat exchange tubes. The heat transfer mechanism comprises a guide block arranged opposite the air inlet channel for dispersing the heat exchange gas, and a vibration assembly for destroying a condensed water film formed on the outer surface of the heat exchange tubes. The vibration assembly includes a vibrating member capable of striking the heat exchange tube and a triggering member arranged between the air inlet passage and the vibrating member. When the air inlet passage is in a ventilated state, the triggering member is in an activated state, and the heat exchange gas impacts the guide block in a dispersed state. When the triggering member is in an activated state, the vibrating member is in a vibrating state of periodically striking the heat exchange tube, thereby destroying the water film attached to the outer surface of the heat exchange tube. The trigger member comprises an impeller rotatably arranged on the heat exchange chamber body and a pressure plate cooperating with the impeller. The impeller is located in the air inlet channel. The pressure plate comprises a downward pressing portion cooperating with the impeller and an upward tilting portion cooperating with the vibrator. When the impeller rotates under the action of the airflow, causing the downward pressing portion to be subjected to the impeller pressure, the upward tilting portion simultaneously puts pressure on the vibrator, causing the vibrator to exert a knocking force on the heat exchange tube. A first return spring is provided between the pressure plate and the heat exchange chamber. When the impeller applies pressure to the lower pressure portion of the pressure plate, the upwardly tilted portion of the pressure plate is in an upward swing state, and the first return spring is in a stretched state.
2. The high-efficiency heat exchange device integrating a steam compressor and a heat pump according to claim 1, characterized in that: The vibrating member has a striking portion and a transmission plate that abuts against the upturned portion. A striking portion is provided between every two adjacent heat exchange fins and corresponding to each section of the heat exchange tube. A transmission rod is fixed between all the striking portions between every two adjacent heat exchange fins, and the lower ends of all the transmission rods abut against the transmission plate.
3. The high-efficiency heat exchange device integrating a steam compressor and a heat pump according to claim 2, characterized in that: The knocking part is specifically a block structure, and a drainage channel for accommodating the corresponding pipe section of the heat exchange tube is formed between every two adjacent knocking parts. When all the knocking parts move synchronously under the drive of the transmission plate, each pipe section of the heat exchange tube is in a periodically knocked state, so that the entire heat exchange tube receives vibration energy evenly.
4. The high-efficiency heat exchange device integrating a steam compressor and a heat pump according to claim 3, characterized in that: A guide plate fixedly connected to the upper ends of all transmission rods is provided on the heat exchange bin body. A second return spring is provided between the guide plate and the heat exchange bin body. When the upward-curved portion of the pressure plate is in an upward swing state, the guide plate moves upward synchronously driven by the transmission rod. At this time, the second return spring is in a stretched state.
5. The high-efficiency heat exchange device integrating a steam compressor and a heat pump according to claim 1, characterized in that: The impeller has a wheel body and multiple blade structures evenly distributed around its circumference. The rotation direction of the impeller is parallel to the ventilation direction of the air inlet channel. When the impeller rotates, the downward pressure part on the pressure plate is in a pressure state of periodic contact with the blade structure.
6. The high-efficiency heat exchange device integrating a steam compressor and a heat pump according to claim 1, characterized in that: The inner wall of the heat exchange chamber has a slope for fixing the guide block and is inclined toward the direction of the heat exchange tube. The channel direction of the air inlet channel is flush with the slope. When the heat exchange gas impacts the guide block, the heat exchange gas disperses and flows along the slope direction, forming an airflow distribution that quickly covers the surface of the heat exchange tube.
7. The high-efficiency heat exchange device integrating a steam compressor and a heat pump according to claim 6, characterized in that: The guide block is specifically a cone structure, and the pointed cone part of the guide block faces the air inlet channel. When the heat exchange gas impacts the guide block, the heat exchange gas diffuses evenly around along the cone surface of the guide block with the pointed cone part as the force point, forming an airflow distribution that evenly covers the surface of the heat exchange tube.
8. The high-efficiency heat exchange device integrating a steam compressor and a heat pump according to claim 7, characterized in that: A plurality of guide blocks are evenly distributed on the heat exchange chamber along the flow path of the heat exchange tube. Each guide block is provided with an air inlet channel. A gap is left between every two adjacent guide blocks for the heat exchange gas to circulate.
Citation Information
Patent Citations
Air source heat pump heat exchange device
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