Plate-fin cooler based on double-medium split-flow type cooling

Abstract

The invention relates to the technical field of heat exchange equipment, in particular to a plate-fin cooler based on double-medium split-flow cooling, which comprises an air inlet pipe, an air cooling split-flow pipe, a water cooling split-flow pipe, an exhaust funnel, an air cooling assembly, a cooling fan, a water cooling assembly, a water feeding assembly and a drainer, the air inlet pipe is installed beside a high-temperature working device, the air cooling flow dividing pipe is installed at one end of the air inlet pipe, the water cooling flow dividing pipe is installed below the air inlet pipe, the exhaust funnel is installed at the output end of the air cooling flow dividing pipe and the output end of the water cooling flow dividing pipe, and the air cooling assembly is installed on the side face, corresponding to the air cooling flow dividing pipe, of the exhaust funnel. The cooling fans are installed on the two sides of the air cooling assembly, the water cooling assembly is installed on the side face, corresponding to the water cooling flow dividing pipe, of the exhaust cylinder, the water feeding assembly is installed on the water cooling assembly, and the drainer is installed on the side face of the lower portion of the water cooling assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat exchange equipment, in particular to a plate-fin cooler based on double-medium shunt cooling. BACKGROUND

[0002] As a kind of compact structure, high efficiency heat exchange equipment, plate-fin cooler has been widely used in modern industrial production and equipment operation. Its main dependence on the combination of plate and fin structure forms a complex heat exchange channel, through the full contact of cooling medium and cooled fluid to realize energy exchange. In the process of power electronic device cooling, chemical heat exchange and various high heat flux equipment, plate-fin cooler often undertakes the key cooling task. Among them, water cooling method is widely used as the main cooling means due to its high specific heat capacity and fast heat removal capacity. The working principle of water-cooled plate-fin cooler is to circulate cooling water in the plate-fin channel to exchange heat with high-temperature fluid, thereby reducing the temperature of equipment or medium. Compared with air cooling, water cooling has the advantages of high heat exchange intensity, small space occupation and fast cooling speed, so it is preferred in high-power electronic devices and high-temperature chemical fluid cooling occasions. It can be said that the importance of water-cooled plate-fin cooler in industrial production is self-evident, and it is the core link to ensure the safe and stable operation of many industries.

[0003] However, the traditional water-cooled plate-fin cooler has exposed a series of deficiencies in long-term use, which restricts its further improvement in energy saving and efficient heat exchange. First of all, due to the relatively single internal flow path design, the shunt method lacks scientificity and flexibility, resulting in excessive heat exchange in local areas and insufficient heat exchange in other areas. This problem of uneven cold and hot distribution will directly affect the overall heat exchange efficiency, and even cause the risk of local overheating of the equipment. Secondly, water cooling method is highly dependent on the temperature difference and flow of cooling water. In order to maintain stable cooling effect, it is often necessary to increase the power of water pump to improve the water flow speed or increase the circulating flow, which not only significantly increases the energy consumption and operation cost, but also leads to excessive dependence on cooling water resources, which does not meet the current industrial energy saving, low carbon and green development needs. In summary, the existing water-cooled plate-fin cooler has obvious deficiencies in shunt design and energy consumption control, and a new technical means is needed to optimize the fluid distribution method and realize efficient, energy-saving and uniform cooling effect through reasonable structural improvement.

[0004] In view of the above situation, in order to overcome the above technical problems, the present application designs a plate-fin cooler based on double-medium shunt cooling, which solves the above technical problems. SUMMARY

[0005] The technical problem to be solved by the present application is to design a plate-fin cooler based on double-medium shunt cooling, which can effectively cool complex mechanical devices through heat exchange of two different media, water cooling and air cooling.

[0006] In order to achieve the above technical problem, the present application provides the following technical scheme. The plate-fin cooler based on double-medium shunt cooling comprises an air inlet pipe, an air cooling shunt pipe, a water cooling shunt pipe, an air outlet cylinder, an air cooling assembly, a cooling fan, a water cooling assembly, an upper water assembly and a water drain device. The air inlet pipe is installed beside a high-temperature working device. The air cooling shunt pipe is installed at one end of the air inlet pipe. The water cooling shunt pipe is installed at the side of the air inlet pipe. The air outlet cylinder is installed at the output end of the air cooling shunt pipe and the water cooling shunt pipe. The air cooling assembly is installed at the side of the air outlet cylinder corresponding to the air cooling shunt pipe. The cooling fan is installed at both sides of the air cooling assembly. The water cooling assembly is installed at the side of the air outlet cylinder corresponding to the water cooling shunt pipe. The upper water assembly is installed above the water cooling assembly. The water drain device is installed at the side of the lower part of the water cooling assembly. High-temperature exhaust gas enters the plate-fin cooler from the air inlet pipe. The telescopic ring installed inside the air inlet pipe is controlled according to the air volume, so that the high-temperature exhaust gas is shunted. When the load is small, most of the high-temperature exhaust gas passes through the air cooling assembly and is cooled under the heat exchange action of the inner fin and the outer fin. When the load is large, part of the high-temperature exhaust gas enters the water cooling assembly through the interception pipe and is cooled by the flowing medium in the water cooling cavity.

[0007] As one of the preferred schemes, the air cooling shunt pipe is arranged on the upper and lower sides of the water cooling shunt pipe. The top ends of the air cooling shunt pipe and the water cooling shunt pipe are arranged in parallel. The air outlet cylinder completely surrounds the sides of the air cooling assembly and the water cooling assembly. When the load of the device requiring heat dissipation is small and the heat generated is small, the heat dissipation requirement can be met by the upper and lower air cooling assemblies. The air cooling assemblies arranged on the upper and lower sides can avoid heat accumulation, provide sufficient space for air circulation, reduce energy consumption and improve heat dissipation efficiency.

[0008] As one of the preferred schemes, two groups of cooling fans are arranged on each air cooling assembly. The two groups of cooling fans are arranged on the front and rear sides of the air cooling assembly. The air directions of the two groups of cooling fans are arranged in the same direction. In this way, the air directions of the two sides of each air cooling assembly can be kept consistent. In the case that the energy consumption of the device requiring heat dissipation is low, the cooling fans can not be started, and the temperature requirement can be met only by natural heat dissipation, thereby further improving the energy utilization rate.

[0009] As one of the preferred solutions, the intake pipe includes an installation pipe, an intercepting pipe, a support spring, a telescopic ring, a fixing block and a fixing rod; the installation pipe is installed inside the intake pipe and is used for installing the support spring. The intercepting pipe is installed on the inner surface of the installation pipe and is used to intercept the gas of the air-cooling shunt pipe to prevent this part of the high-temperature waste gas from directly flowing into the water-cooling shunt pipe through the gap between the telescopic ring and the installation pipe. The support spring is installed on the installation pipe and is used to support the telescopic ring. When the high-temperature waste gas is less, it is diverted to the air-cooling shunt pipe for treatment. The telescopic ring is installed on the support spring and is set as the key component for controlling the diversion. When the high-temperature waste gas is less, the telescopic ring diverts it to both sides. When the high-temperature waste gas is more, the wind pressure presses the telescopic ring down, causing a gap between it and the fixing block. A part of the high-temperature waste gas enters the water-cooling shunt pipe through the gap and the empty groove between the fixing rods, and the water-cooling component is started for heat exchange and cooling. The fixing block is arranged in the middle of the telescopic ring, and the fixing rod is installed on the inner wall of the installation pipe.

[0010] As one of the preferred solutions, the outer diameter value of the intercepting pipe is set to be the same as the inner diameter value of the installation pipe, and the upper end surface of the intercepting pipe component is also the lowest point for the telescopic ring to descend, ensuring that even in the case of a large air volume, the distribution of the air-cooling shunt pipe and the water-cooling shunt pipe is relatively reasonable. Since the heat exchange capacity of the water-cooling component is strong, the heat exchange capacity of a single water-cooling component can also be equal to that of two air-cooling components. That is, when the telescopic ring touches the intercepting pipe, at this time, about half of the high-temperature waste gas passes through the water-cooling shunt pipe, and the remaining half passes through the two air-cooling shunt pipes, thereby further ensuring the average and reasonable distribution of the water-cooling component and the air-cooling component, ensuring that even under high-intensity long-term work, individual components will not be under high load for a long time, effectively extending the service life. The horizontal cross-sectional shape of the fixing block is set to be circular, and the edge at the bottom of the fixing block is rounded, which is beneficial for the high-temperature waste gas to pass quickly. There are four fixing rods, which are arranged in a cross shape, and the through groove between adjacent fixing rods is a quarter circle. The fixing rods are arranged in this way to facilitate the installation of the fixing block and, on the other hand, to facilitate the high-temperature waste gas to pass quickly.

[0011] As one of the preferred solutions, the air-cooling component includes an air-cooling installation plate, inner fins and outer fins; the air-cooling installation plates are stacked in multiple layers to form the air-cooling component. The air-cooling installation plate is set as a hollow cuboid structure, and both sides of the air-cooling installation plate are open structures, thus forming two air ducts perpendicular to each other. One is formed by the high-temperature waste gas passing through the outer fins, and the other is formed by the cooling fan driving the air in the inner fins. The two air ducts continuously contact to complete an efficient heat exchange process. The inner fins and outer fins are sequentially and spacedly installed inside the air-cooling installation plate. The inner fins are set as "several" shapes, and the outer fins are set as corrugated shapes.

[0012] As one of the preferred solutions, the water cooling assembly comprises water cooling fins, a water cooling cavity and a connecting plate; the water cooling fins are installed inside the water cooling assembly and are used to increase the contact area between the high-temperature exhaust gas and the water cooling assembly; the water cooling cavity is arranged inside the water cooling assembly and circulates liquid medium through the upper water assembly and the water drain; the liquid medium is a mixture of water and ethylene glycol, and the ethylene glycol is beneficial to the heat exchange process; the connecting plate is installed on the side of the water cooling assembly and is used to form a passage with the adjacent water cooling assembly, thereby forming a circulating cooling water flow channel.

[0013] As one of the preferred solutions, the water cooling cavity is provided with a spoiler inside, the spoiler is arranged in a wave shape, and the spoiler is used to enhance the vortex action of the water, thereby improving the heat exchange efficiency; the water cooling cavity is provided with a water outlet hole on the side, and the water outlet hole is used to communicate with the next connecting block to realize water circulation.

[0014] As one of the preferred solutions, the connecting plate is provided with a cooling water flow channel inside, the lower end of the cooling water flow channel communicates with the water cooling cavity, and the upper end of the cooling water flow channel communicates with the water outlet hole of the upper water cooling assembly, thereby forming an S-shaped large circulation water channel.

[0015] As one of the preferred solutions, the upper water assembly comprises a pump, an input pipe and an external pipe; the pump is installed on the upper side of the water cooling assembly and is responsible for pumping the liquid medium in the external pipe into the input pipe and circulating in the water cooling assembly; the input pipe is installed on the side of the pump and communicates with the water cooling assembly; and the external pipe is installed on the other side of the pump.

[0016] The beneficial effects of the present application are as follows: (1) The present application adopts a double-medium shunt cooling design of air cooling and water cooling, effectively solves the problems of high energy consumption and unscientific shunt mode of the traditional water cooling plate fin cooler. The device can automatically adjust the shunt ratio of air cooling and water cooling according to the flow and load of the high-temperature exhaust gas, preferentially uses air cooling for heat dissipation under low load conditions, thereby reducing the frequency of using the water cooling system and saving energy consumption. In addition, the air cooling assembly adopts an upper and lower double-air duct design and a high-efficiency fin structure to ensure smooth air flow and uniform heat distribution, which helps to reduce the risk of local overheating and achieve the best balance of energy saving and cooling efficiency.

[0017] (2) The water cooling assembly structure in the application is reasonable, adopts water cooling fins, spoiler and "S" shape circulating waterway design, so that the liquid medium can form stable and uniform circulating flow in the whole water cooling assembly. The setting of the wave-shaped spoiler in the water cooling cavity increases the vortex effect and improves the heat exchange efficiency between water and high-temperature waste gas, and the upper water assembly composed of the pump, the input pipe and the external pipe can continuously ensure the liquid medium supply and large circulating flow, so as to quickly take away a large amount of heat under high load conditions and avoid the phenomenon of insufficient cooling or local high temperature. The design greatly improves the stability and reliability of the system under high intensity operation.

[0018] (3) The application realizes intelligent adjustment in the air inlet pipe, the telescopic ring, the fixed block and the fixed rod and other shunt control mechanisms, automatically distributes the high-temperature waste gas to the air cooling or water cooling channel through the action of air pressure and spring force, so that the two cooling methods can reasonably cooperate according to the actual load, avoid long-term high load operation of a single component, and prolong the service life of the system. At the same time, the modular design and structure optimization ensure smooth airflow and balanced heat distribution, realizing efficient complementation of air cooling and water cooling. Overall, the application not only significantly improves the heat dissipation efficiency, but also reduces energy consumption and operation cost, providing reliable protection for the safe and stable operation of high-temperature equipment. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0020] The above and other aspects of the application will now be described by way of example only, with reference to the accompanying drawings, in which: Figure 1 is a schematic diagram of the overall structure of the application; Figure 2 is a sectional view of the air inlet pipe of the application; Figure 3 is a schematic diagram of the air cooling assembly and the cooling fan installation position of the application; Figure 2 Figure 4 is a schematic diagram of the high-temperature waste gas shunt flow direction when the telescopic ring of the application is pressed down to the interception pipe; Figure 5 is a schematic diagram of the air cooling assembly and the cooling fan installation position of the application; Figure 6 is a schematic diagram of the air cooling assembly of the application; Figure 7 is a schematic diagram of the water cooling assembly of the application; ​Figure 8 is the internal structure diagram of the water cooling assembly of the present application; Figure 9 is the structure diagram of the upper water assembly of the present application.

[0021] In the figure: 1, air inlet pipe; 11, mounting pipe; 12, interception pipe; 13, supporting spring; 14, telescopic ring; 15, fixed block; 16, fixed rod; 2, air cooling shunt pipe; 3, water cooling shunt pipe; 4, exhaust cylinder; 5, air cooling assembly; 51, air cooling mounting plate; 52, inner fin; 53, outer fin; 6, cooling fan; 7, water cooling assembly; 71, water cooling fin; 72, water cooling cavity; 721, spoiler; 722, water outlet hole; 73, connecting plate; 731, cooling water flow channel; 8, upper water assembly; 81, pump; 82, input pipe; 83, external connection pipe; 9, water drain. DETAILED DESCRIPTION

[0022] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in combination with the drawings in the specification and specific embodiments.

[0023] As shown in Figures 1-9 , a plate-fin cooler based on double-medium shunt cooling, the overall structure mainly includes air inlet pipe 1, air cooling shunt pipe 2, water cooling shunt pipe 3, exhaust cylinder 4, air cooling assembly 5, cooling fan 6, water cooling assembly 7, upper water assembly 8 and water drain 9 and other key units. The air inlet pipe 1 is arranged beside the high-temperature working device, used to receive the high-temperature exhaust gas discharged therefrom, and guide the exhaust gas into the cooler for temperature regulation. One end of the air inlet pipe 1 is provided with the air cooling shunt pipe 2, which is connected with the air cooling channel of the cooler, and can introduce part of the high-temperature exhaust gas into the air cooling assembly 5. The lower part of the air inlet pipe 1 is provided with the water cooling shunt pipe 3, which is communicated with the water cooling assembly 7, and can realize the switching and distribution of the exhaust gas into the water cooling circuit. The output ends of the air cooling shunt pipe 2 and the water cooling shunt pipe 3 are jointly connected to the exhaust cylinder 4, and the exhaust gas after cooling treatment is finally discharged through the exhaust cylinder 4, ensuring the continuity and stability of the entire cooling process.

[0024] In the configuration of the cooling assembly, the air cooling assembly 5 is installed on the side of the exhaust cylinder 4 corresponding to the air cooling shunt pipe 2, and cooling fans 6 are arranged on both sides thereof, used to actively guide the air flow, enhance the convective heat transfer effect between the fins, and thus improve the air cooling efficiency. The water cooling assembly 7 is installed on the side of the exhaust cylinder 4 corresponding to the water cooling shunt pipe 3, and the upper water assembly 8 is arranged above the water cooling assembly 7, used to continuously supplement the flowing water medium for the water cooling cavity 72, forming a stable cooling cycle; the water drain 9 is installed on the lower side of the water cooling assembly 7, used to timely drain the circulating water after use, ensuring the cleanliness and stability of the heat exchange process. The reasonable layout and shunt cooperation of air cooling and water cooling enable the cooler to maintain a high cooling efficiency under different working loads.

[0025] In the working process, the high-temperature exhaust gas first enters the plate-fin cooler through the inlet pipe 1. According to the air volume of the entering exhaust gas, the telescopic ring 14 installed inside the inlet pipe 1 will automatically adjust the opening and closing degree of the channel, thereby shunting the high-temperature exhaust gas. When the device is in a low load or medium load state, the exhaust gas volume is relatively small, at this time most of the high-temperature exhaust gas preferentially enters the air-cooled shunt pipe 2, and the temperature is lowered in the air-cooled assembly 5 through the heat exchange action of the inner fin 52 and the outer fin 53, and at the same time the cooling fan 6 accelerates the air flow, further improving the heat dissipation efficiency. The air-cooled mode can complete most of the heat dissipation task with lower energy consumption in this case, ensuring the economy of the system.

[0026] When the device is in a high load working condition, the high-temperature exhaust gas volume is large, and it is difficult to meet the heat dissipation demand simply by relying on air cooling. At this time, part of the exhaust gas will be introduced into the water-cooled shunt pipe 3 through the interception pipe 12, and enter the water-cooled assembly 7. The exhaust gas in the water-cooled cavity 72 exchanges heat with the flowing water medium by forced convection, and the water cooling medium can quickly take away a large amount of heat due to its high specific heat capacity, thereby effectively reducing the exhaust gas temperature and avoiding damage to the cooler or downstream equipment due to local overheating. Finally, the exhaust gas treated by air cooling and water cooling is gathered in the exhaust cylinder 4 and discharged, completing the entire cooling process.

[0027] Through the shunt cooling design of air cooling and water cooling double medium, the cooler can realize flexible cooling strategy under different load conditions: preferentially using air cooling at low load to save water resources and energy consumption; introducing water cooling at high load to realize rapid and efficient heat dissipation. Such structure not only solves the problems of high energy consumption and single shunt mode of traditional water-cooled plate-fin coolers, but also significantly improves the uniformity and reliability of cooling, providing protection for the safe and stable operation of the equipment under high-temperature working conditions.

[0028] The air-cooled shunt pipe 2 is arranged on the upper and lower sides of the water-cooled shunt pipe 3, and the two are arranged in a layered manner, which can effectively utilize the limited space to increase the cooling area and shunt channel. The top ends of the air-cooled shunt pipe 2 and the water-cooled shunt pipe 3 are arranged in parallel, which not only facilitates pipe installation and later maintenance, but also enables the high-temperature exhaust gas entering the cooler to be evenly distributed between the channels, avoiding the formation of cooling blind areas due to uneven flow. The exhaust cylinder 4 completely surrounds the side surfaces of the air-cooled assembly 5 and the water-cooled assembly 7 inside it, forming a relatively closed exhaust channel, so that the exhaust gas can be smoothly guided and discharged during the cooling process, while avoiding external airflow interference and reducing the heat exchange effect.

[0029] In the specific working process, when the device to be cooled is in a low load state, the heat generated is small, at which time the upper and lower two air cooling components 5 can meet the heat dissipation demand. The upper and lower distributed air cooling components 5 form a symmetrical layout in structure, so that the cooling air can enter from multiple directions, ensuring uniform distribution and continuous exchange of airflow. Such design not only effectively avoids the accumulation of high-temperature gas in a certain area causing local overheating, but also provides more sufficient space for air flow, improving the heat dissipation efficiency. By preferentially using air cooling to complete the removal of most of the heat, the use frequency of the water cooling system can be significantly reduced, thereby reducing water resource consumption and energy consumption, and further improving the energy saving and economy of the overall system.

[0030] As shown in Figure 5 Each air cooling component 5 is provided with two groups of cooling fans 6, which are installed on the front and rear sides of the air cooling component 5 respectively, and the outflow directions of the two groups of fans are kept consistent during installation. Such co-directional air design can form a stable and continuous airflow channel, so that the cooling air can pass through the plate-fin channel at a high flow rate, thereby enhancing the convective heat transfer effect between the inner and outer fins 53. The coordinated air supply on the front and rear sides can effectively avoid airflow turbulence, reduce vortex and heat accumulation, ensure that hot air can be quickly discharged, and improve the overall heat transfer uniformity and cooling efficiency.

[0031] At the same time, the cooling fan 6 system has flexibility in operation mode. When the required heat dissipation device is in a low-energy and low-load working condition, the heat generated by the equipment is relatively small, at which time the cooling fan 6 can be selected not to be started, and only the natural convection and radiation mode can be used for heat dissipation to meet the temperature control demand. Such working mode not only can avoid the waste of electric energy caused by frequent operation of the fan, but also can prolong the service life of the fan and related components. By reasonably utilizing the combination of natural heat dissipation and forced air cooling, the cooler can flexibly switch the heat dissipation mode under different working conditions, realize efficient use of energy, and further improve the overall energy saving and economy of the system.

[0032] As shown in Figures 3-4As shown, the internal structure of the air inlet pipe 1 is relatively complex, which is mainly composed of a mounting pipe 11, an interception pipe 12, a supporting spring 13, an expansion ring 14, a fixed block 15 and a fixed rod 16, and the cooperation relationship between the components directly determines the flexibility and reliability of the cooler shunt switching. Specifically, the mounting pipe 11, as the core bearing component inside the air inlet pipe 1, plays a role in fixing and mounting the internal elements. The supporting spring 13 is arranged inside the mounting pipe 11, which can support the expansion ring 14 in the initial position on one hand, and can also elastically expand according to the size of the air flow pressure on the other hand, so as to ensure that the expansion ring 14 has good adjustment performance under different working conditions. The interception pipe 12 is installed on the inner surface of the mounting pipe 11, which mainly plays a role in limiting and intercepting the gas flowing into the air cooling shunt pipe 2, so as to avoid that the high-temperature exhaust gas directly enters the water cooling shunt pipe 3 through the gap between the expansion ring 14 and the mounting pipe 11 without adjustment, thereby effectively ensuring the orderliness and scientificity of the shunt process.

[0033] Under normal working conditions, when the equipment is in low-load operation, the amount of high-temperature exhaust gas is relatively small, and the supporting spring 13 can stably support the expansion ring 14 to remain in the upper position. At this time, the expansion ring 14 will shunt the high-temperature exhaust gas to both sides, so that the gas preferentially enters the air cooling shunt pipe 2 for cooling treatment. In the air cooling channel, the high-temperature exhaust gas is fully heat-exchanged with the outside air through the fins, and cooperates with the air cooling assembly 5 and the cooling fan 6, so that the exhaust gas temperature can be quickly reduced, thereby meeting the heat dissipation demand. Under this working condition, the expansion ring 14 plays a key role in active shunting, so that the exhaust gas can be fully cooled without starting the water cooling system, thereby reducing the energy consumption and operation cost of the system.

[0034] When the equipment is in high-load working condition, the amount of high-temperature exhaust gas entering the air inlet pipe 1 increases significantly, and the exhaust gas flow rate and pressure continuously rise, so that the air flow impact force acting on the expansion ring 14 gradually increases. At this time, the higher air pressure will force the expansion ring 14 to move downward, overcoming the elastic force of the supporting spring 13 and generating a certain downward displacement. After the expansion ring 14 moves downward, a gap is gradually formed between the bottom of the expansion ring 14 and the fixed block 15, which provides a new flow path for the exhaust gas. Part of the high-temperature exhaust gas enters the water cooling shunt pipe 3 below through the air slot channel formed between the expansion ring 14 and the fixed rod 16, and is forced to exchange heat with the circulating water medium in the water cooling assembly 7. Since the water cooling medium has a high specific heat capacity, it can quickly take away a large amount of heat, thereby effectively reducing the temperature of the exhaust gas under high load and avoiding damage to the system due to overheating.

[0035] The fixed block 15 is installed in the middle position of the telescopic ring 14, which mainly limits the downward movement range of the telescopic ring 14 and ensures that a stable and controllable gap can be formed when the telescopic ring 14 is compressed by wind pressure, ensuring that the distribution process is controlled. The fixed rod 16 is installed on the inner wall of the mounting pipe 11, which cooperates with the telescopic ring 14 and the fixed block 15 to automatically adjust the distribution path under different working conditions according to the actual pressure. Through the above structural design, the air inlet pipe 1 can automatically realize the switching of air cooling and water cooling according to the amount and pressure of high-temperature exhaust gas, and the whole switching process does not need additional electrical control devices, relying on air flow power and elastic elements to realize intelligent adjustment, greatly improving the stability and reliability of the system operation.

[0036] In summary, the inside of the air inlet pipe 1 is combined by the mounting pipe 11, the interception pipe 12, the supporting spring 13, the telescopic ring 14, the fixed block 15 and the fixed rod 16, which realizes the dynamic control of the high-temperature exhaust gas distribution mode. Under low load, air cooling is preferred to save water resources and reduce energy consumption; under high load, it is automatically switched to the water cooling channel to ensure sufficient cooling. This design enables the plate-fin cooler to maintain high efficiency and stable cooling effect under different working conditions, effectively solving the problems of high energy consumption and unscientific distribution mode of traditional coolers.

[0037] The outer diameter of the interception pipe 12 is the same as the inner diameter of the mounting pipe 11, which ensures that the interception pipe 12 can tightly fit inside the mounting pipe 11 and will not shake or deviate due to air flow impact, thereby ensuring the stability and reliability of the distribution path. At the same time, the upper end surface of the interception pipe 12 is set as the lowest stop point in the descending process of the telescopic ring 14, that is, when the telescopic ring 14 is pressed downward by the high-temperature exhaust gas, its movement limit just touches the upper end surface of the interception pipe 12. This structure not only avoids the problem of over-distribution caused by the telescopic ring 14 moving too far downward, but also ensures that the air cooling distribution pipe 2 and the water cooling distribution pipe 3 can still maintain a relatively reasonable distribution ratio under the condition of large air volume and significant increase in exhaust gas.

[0038] Because the water cooling assembly 7 itself has strong heat exchange capacity, the heat exchange load that a single component can bear is roughly equivalent to the heat exchange capacity of two air cooling assemblies 5 working together. Therefore, when the telescopic ring 14 is pressed and contacts the interception pipe 12, the gas distribution ratio is about half entering the water cooling distribution pipe 3 and the other half entering the upper and lower air cooling distribution pipes 2. This distribution mode can fully utilize the advantages of air cooling and water cooling and realize dynamic balance between the two cooling methods, so that the whole cooling system can still maintain high efficiency and stability when dealing with high load conditions. Through this structural design, the single cooling mode is avoided for long-term high load operation, thereby reducing the fatigue loss and potential failure risk of the components and effectively prolonging the service life of the whole cooling system.

[0039] In terms of detail optimization, the horizontal section of the fixed block 15 is designed as a circle, which has good symmetry and force balance, and helps to ensure the uniformity of the gap between the telescopic ring 14 and the fixed block 15. At the same time, the lower edge of the fixed block 15 is specially treated with a round corner. This round corner transition design not only reduces the impact and resistance of the exhaust gas when flowing at high speed, but also makes the high-temperature exhaust gas pass through the gap more smoothly, thereby reducing local vortex and energy loss and improving the gas flow efficiency.

[0040] In addition, the fixed rods 16 are evenly arranged on the inner wall of the installation pipe 11, and there are four in total, which are distributed in a cross shape as a whole. Such an arrangement can provide reliable positioning and support for the fixed block 15 in structure, ensuring its stability and non-deviation during work. At the same time, four independent 1 / 4 circular through-slots are formed between the four fixed rods 16. These through-slots not only reserve sufficient space for air flow, but also effectively disperse the gas flow, reduce the phenomenon of local high gas pressure, and make the exhaust gas flow to the distribution pipe in a faster and more uniform manner. Therefore, the function of the fixed rod 16 is not only installation and fixation, but also further optimization of the flow characteristics of the gas passage, so that the cooler still maintains stable working performance under high-temperature and high-pressure working conditions.

[0041] In summary, the combined design between the intercepting pipe 12, the telescopic ring 14, the fixed block 15 and the fixed rod 16 not only ensures reasonable distribution, but also takes into account the smoothness of gas flow and the service life of components. This structure realizes the automatic switching and scientific distribution of the air cooling and water cooling modes under different loads, ensures the reliability and durability of the plate-fin cooler under long-term and high-strength working conditions, and solves the problems of uneven distribution and local overload in traditional coolers.

[0042] As Figure 6As shown, the air cooling assembly 5 is mainly composed of an air cooling mounting plate 51, inner fins 52 and outer fins 53, and the overall structure is carefully designed to achieve efficient and stable heat exchange effect. Among them, the air cooling mounting plate 51 adopts a multi-layer stacking installation mode, and forms a complete air cooling assembly 5 through layer-by-layer stacking. The main body of the air cooling mounting plate 51 is designed as a hollow cuboid structure, and its two sides are designed as open type. The advantage of this structure is that it can form two independent air ducts perpendicular to each other, ensuring that the airflow can cross flow during the heat exchange process, thereby significantly improving the heat exchange efficiency. Specifically, the first air duct is formed when the high-temperature waste gas passes through the outer fin 53 area. The high-temperature waste gas flows on the surface of the outer fin 53 and continuously releases heat; the second air duct is formed by the air flowing between the inner fins 52 driven by the cooling fan 6. The cooling air fully contacts the inner fins 52 and absorbs heat, completing the effective cooling process. The two air ducts continuously contact and exchange heat during operation, achieving efficient heat transfer between high-temperature waste gas and cooling air.

[0043] Inside the mounting plate, the inner fins 52 and the outer fins 53 are arranged in a certain interval. The inner fins 52 are designed as a "j" shape structure, which can increase the contact area of the cooling air and the fins, so that the air forms a turbulent effect during the flow process, thereby further improving the heat exchange efficiency. The outer fin 53 adopts a corrugated structure design. The corrugated structure not only increases the contact surface area of the high-temperature waste gas, but also forms a vortex effect when the airflow passes through, promoting the rapid exchange of heat between the gases. Through the reasonable matching of the inner and outer fins 53, the air cooling assembly 5 can realize large-area heat exchange in a limited space, thereby ensuring that the system can still maintain high cooling capacity under the condition of continuous flow of high-temperature waste gas.

[0044] As shown in Figures 7-8 The water cooling assembly 7 is composed of water cooling fins 71, water cooling cavities 72 and connecting plates 73, and each part cooperates to realize stable and efficient heat exchange effect. Among them, the water cooling fin 71 is installed inside the water cooling assembly 7, which mainly increases the contact area between the high-temperature waste gas and the water cooling assembly 7, so that the high-temperature waste gas can fully transfer heat to the water cooling fin 71 during the flow process, thereby effectively improving the heat dissipation efficiency. The water cooling cavity 72 is opened in the inside of the water cooling assembly 7, which is the main channel for the circulation of liquid medium. The water cooling cavity 72 is connected with the upper water assembly 8 and the water drain 9, which can realize the continuous circulation of the liquid medium in the cavity. The liquid medium is a mixture of water and glycol. This mixture not only has good fluidity and thermal conductivity, but also can significantly reduce the risk of freezing of the liquid in a low-temperature environment, while improving the overall heat exchange efficiency and stability, ensuring good cooling effect under different working conditions.

[0045] In addition, the connecting plate 73 is installed on the side of the water cooling assembly 7, used to interconnect with the adjacent water cooling assembly 7, forming a continuous liquid passage. Through this passage, multiple water cooling assemblies 7 can jointly form a complete circulating cooling water flow channel, so that the cooling liquid is evenly distributed and flows between different assemblies, thereby ensuring that the temperature distribution inside the entire system is more balanced, avoiding the occurrence of local overheating. Therefore, the water cooling assembly 7 not only can complete the efficient cooling task alone, but also can expand the heat exchange capacity through the modular series connection mode to meet the long-term operation demand of large flow and high intensity.

[0046] The inside of the water cooling cavity 72 is specially provided with a spoiler 721, and the spoiler 721 is in a wave shape structure. Through this structure, the water flow will be forced to generate vortex and disturbance when flowing inside the cavity, avoiding the occurrence of laminar flow state, thereby effectively increasing the contact opportunity of water flow with the water cooling fins 71 and the cavity wall, and greatly improving the heat exchange efficiency. At the same time, the wave-shaped spoiler 721 can also play a guiding role, making the cooling liquid more evenly distributed in the water cooling cavity 72, avoiding local temperature difference too large leading to uneven heat exchange. The side of the water cooling cavity 72 is also provided with a water outlet hole 722, which is communicated with the next connecting block, so that the liquid medium can smoothly flow into the adjacent water cooling assembly 7, realizing stable water circulation, thereby ensuring the continuous and efficient operation of the entire cooling system.

[0047] The inside of the connecting plate 73 is provided with a cooling water flow channel 731, and the lower end of the flow channel is communicated with the water cooling cavity 72, so that the liquid medium in the water cooling cavity 72 can smoothly flow into the inside of the connecting plate 73. The upper end of the cooling water flow channel 731 is communicated with the water outlet hole 722 of the water cooling assembly 7 above, realizing a continuous channel for the upward flow of the liquid medium. Through such a design, multiple water cooling assemblies 7 can form a complete circulating loop through the connecting plate 73. The entire waterway is arranged in an "S" shape, so that the cooling water can flow orderly between each water cooling assembly 7, fully utilize the heat exchange capacity of each assembly, and ensure that the liquid medium maintains a stable flow rate and uniform temperature during the circulation process, thereby realizing the efficient cooling and continuous heat dissipation effect of the system.

[0048] As Figure 9As shown, the upper water assembly 8 mainly includes pump 81, input pipe 82 and external pipe 83, etc. key components, which functions to provide stable and continuous liquid medium circulation for the water cooling assembly 7. The pump 81 is installed above the water cooling assembly 7, as the power source of the system, which can extract and pressurize the liquid medium in the external pipe 83 and deliver it to the input pipe 82, so as to ensure that the cooling water or mixed coolant forms an efficient large circulation in the water cooling assembly 7. The input pipe 82 is installed on the side of the pump 81 and directly communicates with the water cooling assembly 7, so that the medium can smoothly flow into the water cooling cavity 72 for sufficient heat exchange treatment. The external pipe 83 is arranged on the other side of the pump 81, which is connected with the external liquid storage system or the coolant supply system, to ensure that the liquid medium supply of the water cooling assembly 7 is sufficient during long-term operation. Through this layout, the liquid medium can form a continuous and high-speed circulation flow under the push of the pump 81, fully exerting the heat exchange capacity of the water cooling assembly 7, and realizing stable and efficient cooling effect of the system.

[0049] In the working process of the present application, the plate-fin cooler of the present application receives the discharged high-temperature exhaust gas through the air inlet pipe 1 when the high-temperature equipment is working, and first enters the inside of the cooler. The air inlet pipe 1 is internally provided with a telescopic ring 14, a supporting spring 13, an intercepting pipe 12, a fixed block 15 and a fixed rod 16 and other flow distribution control mechanisms, which can automatically adjust the flow distribution path according to the flow and pressure of the exhaust gas. When the equipment is in a low-load working condition, the amount of high-temperature exhaust gas is small, the supporting spring 13 supports the telescopic ring 14 to keep it in the upper position, and the exhaust gas is mainly guided into the air cooling shunt pipe 2. The exhaust gas successively passes through the heat exchange zones of the inner fins 52 and the outer fins 53 in the air cooling assembly 5, and the cooling fan 6 drives the air flow on both sides of the air cooling assembly 5, so that the high-temperature exhaust gas and the air form an efficient convective heat exchange, while avoiding the accumulation of heat in a local area, realizing uniform cooling. The air cooling process can complete most of the heat dissipation task under low energy consumption conditions, ensuring the stable operation of the system under low load.

[0050] When the equipment is in a high-load operation, the amount of exhaust gas increases significantly, and the air pressure forces the telescopic ring 14 to move downward, forming a gap with the fixed block 15, so that part of the high-temperature exhaust gas enters the water cooling shunt pipe 3 through the air gap between the telescopic ring 14 and the fixed rod 16. At this time, the water cooling assembly 7 is started, and the upper water assembly 8 pumps the liquid medium in the external pipe 83 into the input pipe 82, forming a large circulation through the water cooling cavity 72 and the spoiler 721, and the liquid medium fully contacts and absorbs heat from the exhaust gas. The wave-shaped spoiler 721 inside the water cooling cavity 72 generates vortex flow, increases the contact area of the fluid with the fins, and improves the heat exchange efficiency. At the same time, multiple water cooling assemblies 7 form an S-shaped circulating water path through the connecting plate 73, ensuring uniform flow of the liquid medium, so that the water cooling system can quickly remove a large amount of heat and avoid local overheating.

[0051] Throughout the process, the air cooling and water cooling systems automatically work in coordination according to the exhaust gas amount, the high-temperature exhaust gas is reasonably distributed to each passage, and a dynamic control strategy of air cooling priority and air-water complementary is realized. The air cooling assembly 5 realizes natural or auxiliary air cooling heat dissipation at low load, the water cooling assembly 7 rapidly cools at high load, the entire cooler can maintain high-efficiency and stable operation under different working conditions, long-term high-load operation of a single assembly is avoided, and the system reliability and service life are improved.

[0052] Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other variations without departing from the scope of the disclosure. Thus, the disclosure is not to be limited to the examples and designs described herein but is to be accorded the broadest scope consistent with the principles and novel features disclosed herein. Although one or more example embodiments of the present disclosure have been described with reference to the accompanying drawings, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims.

Claims

1. A plate-fin cooler based on dual-medium split-flow cooling, characterized in that, It includes an air intake pipe (1), an air-cooled split pipe (2), a water-cooled split pipe (3), an exhaust pipe (4), an air-cooled assembly (5), a cooling fan (6), a water-cooled assembly (7), a water supply assembly (8), and a drain (9). The air intake pipe (1) is installed next to the high-temperature working device. The air-cooled split pipe (2) is installed at one end of the air intake pipe (1). The water-cooled split pipe (3) is installed on the side of the air intake pipe (1). The exhaust pipe (4) is installed at the output end of the air-cooled split pipe (2) and the water-cooled split pipe (3). The air-cooling component (5) is installed on the side of the exhaust pipe (4) corresponding to the air-cooled split pipe (2). The cooling fan (6) is installed on both sides of the air-cooling component (5). The water-cooling component (7) is installed on the side of the exhaust pipe (4) corresponding to the water-cooled split pipe (3). The water supply component (8) is installed on top of the water-cooling component (7). The drainer (9) is installed on the side of the lower part of the water-cooling component (7). High-temperature exhaust gas enters the plate-fin cooler through the inlet pipe (1). The expansion ring (14) installed inside the inlet pipe (1) is controlled according to the air volume to divert the high-temperature exhaust gas. When the load is small, most of the high-temperature exhaust gas is cooled by the air-cooled assembly (5) through the heat exchange between the inner fins (52) and the outer fins (53). When the load is large, a portion of the high-temperature exhaust gas enters the water-cooled assembly (7) through the interception pipe (12) and is cooled by the flowing medium in the water-cooled chamber (72).

2. A plate-fin cooler based on dual-medium split-flow cooling according to claim 1, characterized in that: The air-cooled split pipe (2) is arranged on the upper and lower sides of the water-cooled split pipe (3). The top ends of the air-cooled split pipe (2) and the water-cooled split pipe (3) are arranged in parallel. The exhaust pipe (4) completely surrounds the sides of the air-cooled assembly (5) and the water-cooled assembly (7).

3. A plate-fin cooler based on dual-medium split-flow cooling according to claim 1, characterized in that: Each of the air-cooled components (5) is provided with two sets of cooling fans (6), which are installed on the front and rear sides of the air-cooled components (5) and the airflow direction of the two sets of cooling fans (6) is the same.

4. A plate-fin cooler based on dual-medium split-flow cooling according to claim 1, characterized in that: The intake pipe (1) includes an installation pipe (11), an interception pipe (12), a support spring (13), a telescopic ring (14), a fixing block (15), and a fixing rod (16). The mounting tube (11) is installed inside the air intake pipe (1), the intercepting tube (12) is installed on the inner surface of the mounting tube (11), the support spring (13) is installed on the top of the mounting tube (11), the telescopic ring (14) is installed on the top of the support spring (13), the fixing block (15) is set in the middle of the telescopic ring (14), and the fixing rod (16) is installed on the inner wall of the mounting tube (11).

5. A plate-fin cooler based on dual-medium split-flow cooling according to claim 4, characterized in that: The outer diameter of the interceptor tube (12) is set to be consistent with the inner diameter of the installation tube (11). The horizontal cross-sectional shape of the fixing block (15) is set to be circular. The lower edge of the fixing block (15) is rounded. There are four fixing rods (16) arranged in a cross shape. There is a 1 / 4 circle through groove between adjacent fixing rods (16).

6. A plate-fin cooler based on dual-medium split-flow cooling according to claim 1, characterized in that: The air-cooled assembly (5) includes an air-cooled mounting plate (51), inner fins (52), and outer fins (53). The air-cooled mounting plates (51) are stacked and installed in multiple layers to form an air-cooled component (5). The air-cooled mounting plate (51) is set as a hollow cuboid structure. Both sides of the air-cooled mounting plate (51) are open structures. Inner fins (52) and outer fins (53) are sequentially and spacedly installed inside the air-cooled mounting plate (51). The inner fins (52) are set as "U" shapes, and the outer fins (53) are set as corrugated shapes.

7. A plate-fin cooler based on dual-medium split-flow cooling according to claim 1, characterized in that: The water-cooled component (7) includes a water-cooled fin (71), a water-cooled cavity (72), and a connecting plate (73); The water-cooled fin (71) is installed inside the water-cooled component (7). The water-cooled cavity (72) is opened inside the water-cooled component (7). The connecting plate (73) is installed on the side of the water-cooled component (7).

8. A plate-fin cooler based on dual-medium split-flow cooling according to claim 7, characterized in that: A flow spoiler (721) is arranged inside the water-cooled cavity (72). The flow spoiler (721) is set as a wavy shape. A water outlet hole (722) is opened on the side of the water-cooled cavity (72).

9. A plate-fin cooler based on dual-medium split-flow cooling according to claim 8, characterized in that: A cooling water flow channel (731) is opened inside the connecting plate (73). The lower end of the cooling water flow channel (731) communicates with the water-cooled cavity (72), and the upper end of the cooling water channel communicates with the water outlet hole (722) of the upper water-cooled component (7).

10. A plate-fin cooler based on dual-medium split-flow cooling according to claim 1, characterized in that: The water supply component (8) includes a pump (81), an input pipe (82), and an external connection pipe (83); The pump (81) is installed on the top of the water-cooled component (7). The input pipe (82) is installed on the side of the pump (81). The input pipe (82) communicates with the water-cooled component (7). The external connection pipe (83) is installed on the other side of the pump (81).

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