Efficient heat exchange device integrating steam compressor and heat pump

Abstract

The invention relates to the field of energy supply equipment, in particular to an efficient heat exchange device integrating a steam compressor and a heat pump. Comprising a heat exchange pipe, a plurality of heat exchange fins are arranged on the heat exchange pipe at equal intervals in the flowing path direction of the heat exchange pipe, the heat exchange pipe is contained in the heat exchange bin, the heat exchange bin is provided with an air inlet channel and an air outlet grating, and a heat transfer mechanism is arranged in the heat exchange bin. The heat transfer mechanism comprises a flow guide block and a vibration assembly which are arranged right opposite to the air inlet channel, and the vibration assembly comprises a vibration piece capable of knocking the heat exchange pipe and a trigger piece arranged between the air inlet channel and the vibration piece. Concentrated airflow is evenly dispersed through the flow guide block, the contact area of steam and the heat exchange pipe is enlarged, meanwhile, the vibration assembly periodically knocks the heat exchange pipe under driving of the airflow, a condensate water film on the outer surface is damaged, heat resistance is reduced, and the heat absorption effect of the heat exchange pipe is improved.

Description

Technical Field

[0001] The present invention application relates to the field of energy supply equipment, and specifically relates to an efficient heat exchange device integrating a steam compressor and a heat pump. Background Art

[0002] In the process of industrial production and energy utilization, a heat pump system extracts heat from a low-temperature waste heat source, and through the compression and condensation processes, raises the heat to a medium temperature level as the preheating heat source of the steam compressor system. Secondly, the steam compressor uses this medium-temperature heat energy to heat or boost the pressure of low-pressure steam, further enhancing 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 heat end through a heat exchanger, and at the same time provide a driving heat source for the heat pump evaporator. In the prior art, the heat exchange efficiency is low, and it is difficult for the traditional heat exchange structure to achieve uniform heat transfer, which easily causes local thermal stress problems, resulting in uneven heat distribution and affecting the heat exchange effect.

[0003] A disclosed air source heat pump heat exchange device with the Chinese patent authorization publication number of CN118602633B includes a first heat exchange component and a second heat exchange component. Both the first heat exchange component and the second heat exchange component include a box body, 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 installed in the box body. The control end of the control system is electrically connected to the evaporator, multi-stage compressor, condenser, and expansion valve respectively. Among them, the evaporator absorbs low-temperature heat from the external air through a cooling fan; among them, one side of the four-way valve is connected to the condenser / evaporator of the indoor unit, and the other side is connected to the evaporator / condenser of the outdoor unit; among them, the multi-stage compressor is connected to the evaporator through a pipeline. The multi-stage compressor receives the low-temperature and low-pressure refrigerant gas from the evaporator and compresses the refrigerant gas into a high-temperature and high-pressure gas; among them, the condenser is installed on the inner side wall of the box body far from the evaporator, and the expansion valve is installed on the pipeline of the high-pressure liquid refrigerant connected to the condenser. The expansion valve quickly decompresses the high-pressure liquid refrigerant when it passes through, turning it into a low-temperature and low-pressure liquid.

[0004] According to the above patent, the patent can store and release heat by introducing phase change materials, release the stored heat in a low-temperature environment, improve the heating effect, and enhance the system's ability to adapt to extreme environments. However, the layout of each component in the box is fixed, lacking an optimized design for air flow organization and heat field distribution, which easily causes local heat exchange unevenness and increased thermal resistance, affecting the overall heat exchange performance. Therefore, there is currently a need for an efficient heat exchange device integrating a steam compressor and a heat pump that can evenly distribute air flow and ensure uniform heat transfer. Summary of the Invention

[0005] Aiming at the problems existing in the prior art, an efficient heat exchange device integrating a steam compressor and a heat pump is provided. The concentrated air flow is evenly dispersed through a diversion block to expand the contact area between the steam and the heat exchange tubes. At the same time, the vibration assembly periodically knocks the heat exchange tubes under the drive of the air flow, breaks the condensate film on the outer surface, reduces the thermal resistance, and improves the heat absorption effect of the heat exchange tubes.

[0006] To solve the problems of the prior art, the present invention application provides an efficient heat exchange device integrating a steam compressor and a heat pump, including heat exchange tubes forming a continuously bent flow path. A plurality of heat exchange fins are equidistantly arranged on the heat exchange tubes along the direction of its flow path. It also includes a heat exchange chamber for accommodating the heat exchange tubes. The heat exchange chamber has an air inlet channel and an air outlet grille. A heat transfer mechanism for evenly conducting the heat exchange gas to the heat exchange tubes is provided in the heat exchange chamber. The heat transfer mechanism includes a diversion block facing the air inlet channel for dispersing the heat exchange gas and a vibration assembly for breaking the condensate film formed on the outer surface of the heat exchange tubes. The vibration assembly includes a vibrating member capable of knocking the heat exchange tubes and a trigger member arranged between the air inlet channel and the vibrating member. In the state where the air inlet channel is ventilated, the trigger member is in the starting state, and at the same time, the heat exchange gas impacts on the diversion block and is in a dispersed state. In the starting state of the trigger member, the vibrating member is in a vibrating state of periodically knocking the heat exchange tubes, so that the water film attached to the outer surface of the heat exchange tubes is broken.

[0007] Preferably, the trigger member has an impeller rotatably arranged on the heat exchange chamber respectively and a pressure-receiving plate in linkage cooperation with it. The impeller is located in the air inlet channel. The pressure-receiving plate has a downward pressure part cooperating with the impeller and an upwardly warped part cooperating with the vibrating member. When the impeller rotates under the action of the air flow and the downward pressure part is subjected to the pressure of the impeller, the upwardly warped part is simultaneously in a pressure-applying state to the vibrating member, so that the vibrating member applies a knocking force to the heat exchange tubes.

[0008] Preferably, a first return spring is provided between the pressure-receiving plate and the heat exchange chamber. When the impeller presses on the downward pressure part of the pressure-receiving plate, the upwardly warped part of the pressure-receiving plate is in an upward swing state, and at this time, the first return spring is in a stretched state.

[0009] Preferably, the vibrating member has a knocking part and a transmission plate abutted against the upwardly warped part. One knocking part is provided between every two adjacent heat exchange fins and corresponding to each section of the heat exchange tubes. A transmission rod is fixedly provided between all the knocking parts between every two adjacent heat exchange fins. The lower ends of all the transmission rods abut against the transmission plate.

[0010] Preferably, the knocking part is specifically a block structure. A drainage channel for accommodating the corresponding tube section of the heat exchange tubes is formed between every two adjacent knocking parts. When all the knocking parts act synchronously driven by the transmission plate, each tube section of the heat exchange tubes is in a state of being periodically knocked, so that the entire heat exchange tubes receive vibration energy evenly.

[0011] Preferably, a guide plate fixedly connected to the upper ends of all the transmission rods is provided on the heat exchange chamber body. A second return spring is provided between the guide plate and the heat exchange chamber body. When the upwardly tilted portion of the pressure receiving plate is in the upward swing state, the guide plate moves upward synchronously driven by the transmission rods. At this time, the second return spring is in a stretched state.

[0012] Preferably, the impeller has a wheel body and a plurality of blade structures evenly distributed around its circumferential direction. The rotation direction of the impeller is parallel to the ventilation direction of the air inlet passage. When the impeller rotates, the downward pressure portion on the pressure receiving plate is in a pressure receiving state of periodically contacting the blade structures.

[0013] Preferably, the inner wall of the heat exchange chamber body has a slope for fixing the flow guiding block and inclining towards the direction of the heat exchange tube. The channel direction of the air inlet passage is flush with the slope. When the heat exchange gas impacts on the flow guiding block, the heat exchange gas flows dispersedly along the slope direction, forming an air flow distribution that quickly covers the surface of the heat exchange tube.

[0014] Preferably, the flow guiding block is specifically a conical structure. The pointed cone portion of the flow guiding block faces the air inlet passage. When the heat exchange gas impacts the flow guiding block, the heat exchange gas evenly diffuses around along the conical surface of the flow guiding block with the pointed cone portion as the force receiving point, forming an air flow distribution that evenly covers the surface of the heat exchange tube.

[0015] Preferably, a plurality of the flow guiding blocks are evenly distributed at equal intervals along the flow path direction of the heat exchange tube on the heat exchange chamber body. Each flow guiding block is correspondingly provided with an air inlet passage, and a gap for the heat exchange gas to flow through is left between every two adjacent flow guiding blocks.

[0016] The beneficial effects of this application compared with the prior art are as follows: 1. Through the cooperation between the flow guiding block and the vibration assembly in this invention application, efficient and stable heat exchange of the waste heat steam by the heat exchange tube is achieved. That is, the centrally impacting air flow is evenly dispersed by the flow guiding block, enhancing the contact range between the steam and the heat exchange tube.

[0017] Meanwhile, the vibration assembly periodically knocks on the heat exchange tube driven by the air flow, breaking the condensate film formed on its outer surface and reducing the thermal resistance. During this process, the trigger part utilizes the linkage between the impeller and the pressure receiving plate to realize the automatic start and stop of the vibrating part under the condition of no external power. At the same time, the first return spring ensures the continuity and stability of the vibration action. The heat exchange effect is effectively improved.

[0018] 2. Through the linkage of the impeller, the pressure receiving plate, the transmission rod and the knocking part, combined with the acting forces of the first return spring and the second return spring, the periodic automatic destruction of the condensate film on the outer surface of the heat exchange tube is realized in this invention application. During this process, the impeller rotates driven by the air flow, drives the pressure receiving plate to swing, pushes the transmission rod to move and triggers the knocking part to synchronously knock on the heat exchange tube.

[0019] While ensuring the effective transmission of vibration energy in the soft metal knocking part, it also avoids mechanical damages such as scratches and indentations that may be caused to the heat exchange tubes due to rigid contact. It makes the knocking action have both strength and flexibility, which can not only meet the requirements of periodic vibration but also ensure the structural integrity of the heat exchange tubes, thereby improving the operation stability and service life of the heat exchange tubes.

[0020] 3. In this invention application, by setting a slope structure and a cone-shaped flow guide block in the heat exchange chamber body, and combining multi-point air intake, partitioned flow guiding and the gaps formed between the flow guide blocks, the uniform distribution and efficient flow of the heat exchange gas in the heat exchange chamber body are realized.

[0021] Since the slope is flush with the air intake direction, it guides the air flow to enter smoothly. The concentrated air flow is dispersed along the conical surface by the flow guide block with a conical structure, expanding the coverage range. And the gas circulation is promoted and complemented through the gaps between adjacent flow guide blocks to avoid local stagnation. It effectively improves the contact efficiency between the waste heat steam and the heat exchange tubes, enhances the condensation heat exchange effect, reduces the flow resistance at the same time, and ensures the stability and efficiency of the heat exchange process. Brief Description of the Drawings

[0022] Figure 1 is a three-dimensional structural schematic diagram of an efficient heat exchange device integrating a steam compressor and a heat pump in this invention application.

[0023] Figure 2 is a plan sectional view of an efficient heat exchange device integrating a steam compressor and a heat pump in this invention application.

[0024] Figure 3 is a three-dimensional structural sectional view of an efficient heat exchange device integrating a steam compressor and a heat pump in this invention application.

[0025] Figure 4 is a three-dimensional structural schematic diagram of the heat exchange tubes and heat exchange fins of an efficient heat exchange device integrating a steam compressor and a heat pump in this invention application.

[0026] Figure 5 is a partial plan sectional view of an efficient heat exchange device integrating a steam compressor and a heat pump in this invention application.

[0027] Figure 6 is a partial three-dimensional structural sectional view of an efficient heat exchange device integrating a steam compressor and a heat pump in this invention application.

[0028] Figure 7 is in this invention application Figure 6 magnified schematic diagram of part A.

[0029] Figure 8 is a partial three-dimensional structural sectional view of the heat transfer mechanism of an efficient heat exchange device integrating a steam compressor and a heat pump in this invention application.

[0030] Figure 9 It is a plan sectional view of a flow guide block and an air inlet passage of an efficient heat exchange device integrating a steam compressor and a heat pump according to the present invention application.

[0031] Figure 10 It is a three-dimensional structural sectional view of a flow guide block and an air inlet passage of an efficient heat exchange device integrating a steam compressor and a heat pump according to the present invention application.

[0032] The reference numerals in the figure are: 1, heat exchange tube; 2, heat exchange fins; 3, heat exchange chamber body; 31, air inlet passage; 32, air outlet grille; 4, flow guide block; 5, vibration assembly; 51, vibrating part; 511, knocking part; 5111, drainage channel; 512, transmission plate; 5121, transmission rod; 513, guide plate; 5131, second return spring; 5132, guide shaft; 52, trigger part; 521, impeller; 5211, wheel body; 5212, blade structure; 522, pressure receiving plate; 5221, downward pressing part; 5222, upward warping part; 5223, first return spring. Detailed implementation manners

[0033] In order to further understand the features, technical means, specific purposes and functions achieved by the present invention application, the present invention application will be described in further detail below in conjunction with the accompanying drawings and specific implementation manners.

[0034] See Figures 1 - 7 As shown, an efficient heat exchange device integrating a steam compressor and a heat pump includes a heat exchange tube 1 forming a continuously bent flow path. A plurality of heat exchange fins 2 are arranged at equal intervals along the flow path direction of the heat exchange tube 1. It further includes a heat exchange chamber body 3 for accommodating the heat exchange tube 1 therein. The heat exchange chamber body 3 has an air inlet passage 31 and an air outlet grille 32. A heat transfer mechanism for uniformly conducting heat exchange gas to the heat exchange tube 1 is arranged in the heat exchange chamber body 3. The heat transfer mechanism includes a flow guide block 4 disposed opposite to the air inlet passage 31 for dispersing the heat exchange gas and a vibration assembly 5 for breaking the condensate film formed on the outer surface of the heat exchange tube 1. The vibration assembly 5 includes a vibrating part 51 capable of knocking the heat exchange tube 1 and a trigger part 52 disposed between the air inlet passage 31 and the vibrating part 51. In the state where the air inlet passage 31 is ventilated, the trigger part 52 is in the starting state, and at the same time, the heat exchange gas impacts on the flow guide block 4 and is in a dispersed state. In the starting state of the trigger part 52, the vibrating part 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 broken.

[0035] The air inlet passage 31 is used to introduce high-temperature gas from the steam compressor.

[0036] The air outlet grille 32 is used to uniformly discharge the gas after heat exchange.

[0037] When the high-efficiency heat exchange device integrating a steam compressor and a heat pump is in operation, the high-efficiency heat exchange process between the cooling water flowing through the heat exchange tube 1 and the waste heat steam realizes energy recovery and reuse. At this time, the cooling water introduced into the heat exchange tube 1 is from an external cycle, while the 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 is the heat exchange area significantly increased, but also the fluid disturbance is effectively enhanced, and the overall heat transfer efficiency is improved.

[0038] During the heat exchange process, the waste heat steam first impacts the deflector 4 arranged opposite to the air inlet channel 31. The deflector 4 disperses the originally concentrated steam into multiple uniformly distributed airflows, enabling it to cover the surface of the heat exchange tube 1 more comprehensively. This avoids the problem of uneven heat transfer caused by uneven steam flow in local areas, thereby ensuring a more stable temperature field distribution throughout the heat exchange chamber 3. At the same time, the cooling water continuously flows inside the heat exchange tube 1, absorbs the heat released by the waste heat steam, and its temperature gradually rises. The steam condenses into liquid water on the outer wall surface of the heat exchange tube 1 and adheres to the tube wall surface to form a water film.

[0039] The existence of this water film will significantly increase the thermal resistance between the steam and the heat exchange tube 1 and reduce the heat exchange efficiency. For this reason, when the waste heat steam enters the heat exchange chamber 3 through the air inlet channel 31 and impacts the deflector 4, the trigger 52 starts the vibrating member 51 through the acting force of the airflow, prompting the vibrating member 51 to periodically knock on the heat exchange tube 1, causing the heat exchange tube 1 to generate micro-amplitude vibrations, thereby breaking the condensed water film attached to its outer surface. The broken water film re-condenses into small droplets, detaches from the tube wall, and is discharged by the action of the airflow or gravity, thereby significantly reducing the water film thermal resistance and improving the overall heat exchange efficiency. The channel for discharging the droplets on the heat exchange chamber 3 is not shown in the figure.

[0040] In addition, after absorbing the heat of the waste heat steam, the temperature of the cooling water rises, and then it flows into the evaporator side of the heat pump system and is supplied as a low-temperature heat source to the heat pump for heat extraction. The heat pump does work through the compressor to raise this part of the low-grade heat energy to a higher temperature level, and then it is used for subsequent process heating, hot water supply, or other heat demand links. During this process, the steam compressor also participates in collaborative work. Its role is to mechanically compress part of the waste heat steam, increase its pressure and temperature, make it have a higher available energy level, and then introduce it into the heat exchange device again to further release heat, thereby realizing the cascade utilization of waste heat steam and maximizing energy recovery.

[0041] The entire heat exchange device constructs a closed-loop energy recovery system through the organic integration of steam compressor, heat pump and high-efficiency heat exchange structure. The heat of waste heat steam is transferred to cooling water through heat exchange pipe 1, and the cooling water then transfers the heat to the heat pump system for upgraded utilization, while the steam compressor further enhances the heat energy recovery capacity of waste heat steam and reduces energy waste.

[0042] See also Figures 2 - 7 As shown, the trigger member 52 has an impeller 521 rotatably arranged on the heat exchange chamber body 3 and a pressure plate 522 cooperating therewith, the impeller 521 is located in the air inlet channel 31, and the pressure plate 522 has a downward pressure portion 5221 cooperating with the impeller 521 and an upward portion 5222 cooperating with the vibrator 51. When the impeller 521 rotates under the action of the airflow so that the downward pressure portion 5221 is 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.

[0043] When the waste heat steam enters the heat exchange chamber 3 through the air inlet channel 31, it first acts on the impeller 521 disposed inside the air inlet channel 31. As the airflow continues to flow in, the impeller 521 begins to rotate under the impact of the steam. At this time, the rotation of the impeller 521 drives the pressure plate 522 that is closely matched with it to move in a linkage manner.

[0044] When the impeller 521 rotates, the impeller 521 applies pressure to the pressing portion 5221 of the pressure plate 522, causing the pressure plate 522 to swing slightly around the rotation point, thereby causing the upturned portion 5222 to lift up and press the vibrator 51. The vibrator 51 is displaced after being periodically pressed by the upturned portion 5222, thereby performing a knocking action on the heat exchange tube 1. Since the impeller 521 keeps rotating under the action of continuous airflow, the pressure on the pressing portion 5221 changes periodically, causing the upturned portion 5222 to swing up and down regularly, thereby driving the vibrator 51 to achieve the function of periodically knocking the heat exchange tube 1.

[0045] See also Figures 2 - 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 downward pressure portion 5221 of the pressure plate 522, the upwardly tilted portion 5222 of the pressure plate 522 is in an upward swing state, and the first return spring 5223 is in a stretched state.

[0046] When the impeller 521 rotates driven by the air flow in the intake passage 31 and applies pressure to the downward pressing portion 5221 of the pressure receiving plate 522, the pressure receiving plate 522 swings around the rotation connection point between it and the heat exchange chamber body 3, causing the upward warping portion 5222 to lift upward and enter the working state of cooperating with the vibrating member 51. At this time, the first return spring 5223 provided between the pressure receiving plate 522 and the heat exchange chamber body 3 is stretched accordingly, storing a certain amount of elastic potential energy.

[0047] The stretching action of the first return spring 5223 provides a restoring force for the subsequent reset of the pressure receiving plate 522, ensuring that when the pressure of the impeller 521 on the downward pressing portion 5221 disappears, the pressure receiving plate 522 can quickly return to the initial position by the rebounding action of the first return spring 5223, thereby driving the upward warping portion 5222 to disengage from the pressurizing state of the vibrating member 51. The periodic driving and automatic reset of the trigger member 52 to the vibrating member 51 are realized, ensuring the stability and continuity of the knocking action of the vibrating member 51, continuously and effectively destroying the condensate film during the heat exchange process, and improving the heat exchange efficiency.

[0048] See Figures 2 - 7 As shown, the vibrating member 51 has a knocking portion 511 and a transmission plate 512 that abuts against the upward warping portion 5222. One such knocking 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 knocking portions 511 of every two adjacent heat exchange fins 2. The lower ends of all the transmission rods 5121 abut against the transmission plate 512.

[0049] When the upward warping portion 5222 of the pressure receiving plate 522 swings upward under the drive of the impeller 521 and presses on the transmission plate 512 of the vibrating member 51, the transmission plate 512 is subjected to an upward thrust force and drives all the transmission rods 5121 fixedly connected to it to move upward synchronously. Since the lower end of each transmission rod 5121 abuts against the transmission plate 512, during the process of the transmission plate 512 being lifted, the whole transmission rod 5121 rises accordingly and transmits the power to each knocking portion 511 connected to it. As the transmission rod 5121 rises, each knocking portion 511 respectively 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.

[0050] During the transmission process, multiple knocking portions 511 are linked through the transmission rods 5121 to ensure that each section of the heat exchange tube 1 can synchronously receive periodic knocking under the continuous action of the air flow, thereby maintaining the high-efficiency and stable heat exchange performance of the entire heat exchange device.

[0051] See Figures 2 - 7As shown, the knocking part 511 is specifically in a block structure. A drainage channel 5111 for accommodating the corresponding pipe section of the heat exchange pipe 1 is formed between every two adjacent knocking parts 511. When all the knocking parts 511 synchronously act driven by the transmission plate 512, each pipe section of the heat exchange pipe 1 is in a state of being periodically knocked, so that the entire heat exchange pipe 1 uniformly receives vibration energy.

[0052] The knocking part 511 is made of a soft metal material, having a relatively low hardness and good ductility, and can effectively transfer vibration energy during the process of knocking the heat exchange pipe 1, destroying the condensate film attached to its outer surface. At the same time, it can avoid mechanical damages such as scratches or indentations on the heat exchange pipe 1. Compared with hard metals, soft metals are more suitable as the knocking part 511 in direct contact with the heat exchange pipe 1, which helps to extend the service life of the heat exchange pipe 1 and maintain stable heat exchange performance.

[0053] With the synchronous action of all the knocking parts 511, each pipe section of the heat exchange pipe 1 is in a state of being periodically knocked. And when the waste heat steam enters the heat exchange chamber 3 from the air inlet channel 31, it flows to each heat exchange area under the preliminary dispersion action of the diversion block 4, while the drainage channel 5111 further guides the steam to evenly flow through the outer wall surface of the heat exchange pipe 1, ensuring that the steam stably flows in the gaps between the heat exchange fins 2. This not only improves the uniformity of steam flow, but also enhances the contact efficiency between the steam and the heat exchange pipe 1, enabling the steam to fully condense and release heat on the surface of the heat exchange pipe 1.

[0054] See Figures 2 - 7 As shown, a guide plate 513 fixedly connected to the upper ends of all the transmission rods 5121 is provided on the heat exchange chamber 3. A second return spring 5131 is provided between the guide plate 513 and the heat exchange chamber 3. When the upturned part 5222 of the pressure receiving plate 522 is in the upward swing state, the guide plate 513 synchronously moves upward driven by the transmission rod 5121. At this time, the second return spring 5131 is in a stretched state.

[0055] The guide plate 513 has a plurality of guide openings vertically formed thereon, and guide shafts 5132 passing through each guide opening are provided on the heat exchange chamber 3.

[0056] When the upturned part 5222 of the pressure receiving plate 522 swings upward and pushes the transmission plate 512, the transmission rod 5121 synchronously moves upward driven by the transmission plate 512, and further transmits the movement 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, and the plurality of guide openings thereon form a sliding fit with the guide shafts 5132 fixed on the heat exchange chamber 3, ensuring that the guide plate 513 remains stable and does not deviate during the rising process.

[0057] Meanwhile, the second reset spring 5131 disposed between the guide plate 513 and the heat exchange chamber body 3 is stretched accordingly, storing elastic potential energy and providing a restoring force for the subsequent reset of the knocking part 511. When the trigger 52 releases the pressure, under the action of the second reset spring 5131, the guide plate 513 drives the transmission rod 5121 and the vibrating part 51 to quickly reset, preparing for the next knocking cycle, thus ensuring the continuity and reliability of the entire vibration process of breaking the water film.

[0058] See Figures 7 - 10 As shown, the impeller 521 has a wheel body 5211 and a plurality of blade structures 5212 evenly distributed around its circumferential direction. The rotation direction of the impeller 521 is parallel to the ventilation direction of the air inlet passage 31. When the impeller 521 rotates, the pressing part 5221 on the pressure receiving plate 522 is in a pressed state of periodically contacting the blade structure 5212.

[0059] When the waste heat steam enters the heat exchange chamber body 3 along the air inlet passage 31 and impacts the blade structure 5212 of the impeller 521, the impeller 521 rotates around its rotation axis under the action of the air flow. Since the rotation direction of the impeller 521 is parallel to the ventilation direction of the air inlet passage 31, the air flow can evenly push each blade structure 5212, thus realizing a stable and continuous rotational motion. As the impeller 521 continues to rotate, its blade structure 5212 periodically contacts the pressing part 5221 on the pressure receiving plate 522, causing the pressing part 5221 to be subjected to intermittent pressure.

[0060] The periodic contact process drives the pressure receiving plate 522 to swing around its rotation point and drives the upwardly curved part 5222 to move up and down. Combining the acting forces of the first reset spring 5223 and the second reset spring 5131, the vibrating part 51 is triggered to periodically knock on the heat exchange tube 1. The trigger 52 is directly driven by the air flow energy without an external power source, realizing the automatic control and efficient execution of the process of breaking the condensate water film.

[0061] See Figures 7 - 10 As shown, the inner wall of the heat exchange chamber body 3 has a slope surface for fixing the flow guiding block 4 and inclined towards the heat exchange tube 1. The channel direction of the air inlet passage 31 is flush with the slope surface. When the heat exchange gas impacts on the flow guiding block 4, the heat exchange gas dispersedly flows along the slope surface direction, forming an air flow distribution that quickly covers the surface of the heat exchange tube 1.

[0062] When the heat exchange gas enters the heat exchange chamber body 3 from the air inlet passage 31, its flow direction is flush with the slope surface provided on the inner wall of the heat exchange chamber body 3. As the heat exchange gas impacts the surface of the flow guiding block 4 at a high speed, the gas is guided and dispersedly flows along the inclined direction of the slope surface. Since the slope surface is arranged towards the heat exchange tube 1, the gas quickly expands under the combined action of the flow guiding block 4 and the slope surface, forming a uniform air flow distribution covering the outer surface of the heat exchange tube 1.

[0063] It effectively avoids dead corners or local concentration phenomena during the gas flow process, improves the contact efficiency between the waste heat steam and the heat exchange tube 1, enables the steam to condense and release heat more fully on the surface of the heat exchange tube 1, thereby enhancing the overall heat exchange effect. At the same time, the consistency between the slope and the direction of the air inlet channel 31 reduces the gas flow resistance.

[0064] See Figures 7 - 10 As shown, the flow guiding block 4 is specifically a conical structure, and the pointed cone part of the flow guiding block 4 faces the air inlet channel 31. When the heat exchange gas impacts the flow guiding block 4, the heat exchange gas diffuses evenly around along the conical surface of the flow guiding block 4 with the pointed cone part as the force-receiving point, forming an air flow distribution that evenly covers the surface of the heat exchange tube 1.

[0065] When the heat exchange gas enters the heat exchange chamber 3 from the air inlet channel 31 at high speed, it first impacts on the flow guiding block 4 arranged opposite to the air inlet channel 31. Since the flow guiding block 4 is a conical structure, its pointed cone part directly faces the oncoming flow as the initial force-receiving point. After the heat exchange gas impacts the pointed cone part, it diffuses evenly around along the inclined direction of the conical surface, avoiding the occurrence of air flow concentration or deviation phenomena. As the gas expands outward along the conical surface, the flow is effectively guided to the surface area of the heat exchange tube 1, forming an air flow field with a wide coverage range and uniform distribution.

[0066] It not only improves the contact efficiency between the waste heat steam and the heat exchange tube 1, enables the steam to fully condense and release heat on the outer surface of the heat exchange tube 1, ensures that the heat exchange gas can be quickly and evenly distributed after entering the heat exchange chamber 3, thus providing a good flow field basis for the subsequent high-efficiency heat exchange process.

[0067] See Figures 7 - 10 As shown, a plurality of the flow guiding blocks 4 are evenly distributed at equal intervals along the flow path direction of the heat exchange tube 1 on the heat exchange chamber 3. Each flow guiding block 4 is correspondingly provided with an air inlet channel 31, and a gap for the heat exchange gas to flow through is left between every two adjacent flow guiding blocks 4.

[0068] When the heat exchange gas enters the heat exchange chamber 3 through each air inlet channel 31, the heat exchange gas impacts on the corresponding flow guiding block 4 and diffuses around along the conical surface under the guidance of the conical structure, forming an air flow that evenly covers the surface of the heat exchange tube 1.

[0069] At the same time, a certain gap is reserved between every two adjacent flow guiding blocks 4 as a channel for the further flow and distribution of the heat exchange gas, enabling the gas to flow between multiple flow guiding blocks 4 and complement each other, avoiding the phenomenon of air flow stagnation or uneven distribution in local areas. By means of multi-point air inlet, partitioned flow guiding, and gap connection, the flow uniformity and heat exchange efficiency of the heat exchange gas in the entire heat exchange chamber 3 are effectively improved, ensuring the stability and high efficiency of the condensation heat exchange process of each section of the heat exchange tube 1.

[0070] Through the synergistic effect of the flow guide block 4 and the vibration assembly 5, the present invention realizes the efficient and stable heat exchange of the waste heat steam by the heat exchange tube 1. In this process, the flow guide block 4 evenly disperses the concentrated air flow, expanding the contact area between the steam and the heat exchange tube 1. At the same time, the vibration assembly 5 periodically knocks the heat exchange tube 1 under the drive of the air flow, breaking the condensate film on the outer surface and reducing the thermal resistance. That is, the impeller 521 and the pressure receiving plate 522 are linked to realize the automatic start and stop of the vibrating member 51 under the condition of no external power, and the continuity and stability of the action are ensured through the first return spring 5223 and the second return spring 5131.

[0071] The knocking part 511 made of soft metal material can avoid mechanical damage to the heat exchange tube 1 while effectively transmitting vibration energy, improving durability. Combined with the slope surface, the conical flow guide block 4 and multi-point air intake, the air flow distribution uniformity in the heat exchange chamber 3 is further optimized, enhancing the heat exchange efficiency, and is applicable to the high-efficiency heat exchange scenario of industrial waste heat recovery.

[0072] The above embodiments only represent one or several implementation manners of the present invention application, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the protection scope of the present invention application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention application, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention application. Therefore, the protection scope of the present invention application shall be subject to the appended claims.

Claims

1. An efficient heat exchange device integrating a steam compressor and a heat pump, comprising a heat exchange tube forming a continuously bent flow path, and a plurality of heat exchange fins are equidistantly arranged on the heat exchange tube along the direction of its flow path; It is characterized in that, It further includes a heat exchange chamber for accommodating the heat exchange tube, the heat exchange chamber has an air inlet channel and an air outlet grille, and a heat transfer mechanism for uniformly conducting the heat exchange gas to the heat exchange tube is provided in the heat exchange chamber. The heat transfer mechanism includes a diversion block disposed opposite to the air inlet channel for dispersing the heat exchange gas and a vibration assembly for destroying the condensate film formed on the outer surface of the heat exchange tube; The vibration assembly includes a vibrating member capable of knocking on the heat exchange tube and a trigger member disposed between the air inlet channel and the vibrating member. In the state where the air inlet channel is ventilated, the trigger member is in a starting state, and at the same time, the heat exchange gas impacts on the diversion block and is in a dispersed state. In the starting state of the trigger member, the vibrating member is in a vibrating state of periodically knocking on the heat exchange tube, so that the water film attached to the outer surface of the heat exchange tube is destroyed.

2. The high-efficiency heat exchange device integrating a steam compressor and a heat pump according to claim 1, characterized in that, The trigger member has an impeller rotatably disposed on the heat exchange chamber respectively and a pressure-receiving plate in linkage cooperation with it. The impeller is located in the air inlet channel. The pressure-receiving plate has a downward pressing portion cooperating with the impeller and an upwardly tilted portion cooperating with the vibrating member. When the impeller rotates under the action of the air flow and the downward pressing portion receives the pressure of the impeller, the upwardly tilted portion simultaneously exerts a pressure on the vibrating member, so that the vibrating member exerts a knocking force on the heat exchange tube.

3. The high-efficiency heat exchange device integrating a steam compressor and a heat pump according to claim 2, characterized in that, A first return spring is provided between the pressure-receiving plate and the heat exchange chamber. When the impeller presses on the downward pressing portion of the pressure-receiving plate, the upwardly tilted portion of the pressure-receiving plate is in an upward swing state, and at this time the first return spring is in a stretched state.

4. An efficient heat exchange device integrating a steam compressor and a heat pump according to claim 2, characterized in that, The vibrating member has a knocking portion and a transmission plate abutted against the upwardly tilted 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 fixedly provided 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.

5. An efficient heat exchange device integrating a steam compressor and a heat pump according to claim 4, characterized in that, The knocking portion 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 portions. When all the knocking portions act synchronously under the drive of the transmission plate, each pipe section of the heat exchange tube is in a state of being periodically knocked, so that the entire heat exchange tube uniformly receives vibration energy.

6. The highly efficient heat exchange device integrating a steam compressor and a heat pump according to claim 5, characterized in that, A guide plate fixedly connected to the upper ends of all the transmission rods is provided on the heat exchange chamber, and a second return spring is provided between the guide plate and the heat exchange chamber. When the upwardly tilted portion of the pressure-receiving plate is in an upward swing state, the guide plate synchronously moves upward under the drive of the transmission rod, and at this time the second return spring is in a stretched state.

7. The high-efficiency heat exchange device integrating a steam compressor and a heat pump according to claim 2, wherein, The impeller has a wheel body and a plurality of blade structures uniformly distributed around its circumferential direction. The rotation direction of the impeller is parallel to the ventilation direction of the air inlet channel. When the impeller rotates, the downward pressing portion on the pressure-receiving plate is in a compressed state of periodically contacting the blade structure.

8. An efficient 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 diversion block and inclining towards the heat exchange tube. The channel direction of the air inlet channel is flush with the slope. When the heat exchange gas impacts on the diversion block, the heat exchange gas flows dispersedly along the slope direction, forming an air flow distribution that quickly covers the surface of the heat exchange tube.

9. The high-efficiency heat exchange device integrating a steam compressor and a heat pump according to claim 8, wherein The flow guiding block is specifically a conical structure. The pointed cone part of the flow guiding block faces the intake passage. When the heat exchange gas impacts the flow guiding block, the heat exchange gas takes the pointed cone part as the force application point and evenly diffuses around along the conical surface of the flow guiding block, forming an airflow distribution that evenly covers the surface of the heat exchange tube.

10. An efficient heat exchange device integrating a steam compressor and a heat pump according to claim 9, characterized in that, A plurality of the flow guiding blocks are evenly distributed at equal intervals along the flow path direction of the heat exchange tubes on the heat exchange chamber body. Each flow guiding block is correspondingly provided with one of the intake passages, and a gap for the heat exchange gas to flow through is left between every two adjacent flow guiding blocks.

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