A steam treatment article cooling device and a cooling method thereof

Abstract

The present application belongs to the technical field of metal manufacturing, and particularly relates to a steam treatment product cooling device and a cooling method thereof, which comprises an outer barrel, an inner barrel, a top cover, a flow guide air supply assembly and an adjustment space assembly; the inner barrel is arranged in the inner part of the outer barrel, and a chamber for accommodating a cooling medium is formed between the inner barrel and the outer barrel; the top cover is arranged on the top of the outer barrel; the present application is designed by means of double cooling and non-direct blowing air flow, specifically, the cooling medium between the outer barrel and the inner barrel is used to indirectly reduce the ambient temperature of the inner barrel, so as to reduce the temperature difference between the part and the cooling environment, avoid sudden cooling, and divide the cold air of the air blower into two paths by the flow guide air supply assembly; the spiral flow guide plate guides the air flow to surround the outer side of the part, the injection rod is directionally injected into the gap between the parts, and the injection inclined plate and the air gathering ring are used to realize full-dimension air flow coverage; the air flow is uniformly and gently contacted with the surface of the part, and there is no local air sharp cooling, so that the condensate water generation condition is eliminated from the root, and then the oxidation and rust are avoided.

Description

Technical Field

[0001] This invention belongs to the field of metal manufacturing technology, and particularly relates to a steam-treated product cooling device and its cooling method. Background Technology

[0002] In the field of powder metallurgy, steam treatment is an important surface treatment process for improving the surface condition of parts and enhancing their overall performance. By precisely adjusting and controlling process parameters such as steam treatment temperature, steam flow rate, and treatment time, parts can exhibit a superior appearance with uniform color, smooth surface, and bluish-black metallic luster. At the same time, it reduces the coefficient of friction, increases apparent hardness, and also has excellent rust prevention function, giving parts outstanding friction reduction and wear resistance.

[0003] However, after the parts have undergone steam treatment at a high temperature of about 500°C in a well-type steam treatment furnace, the cooling process becomes a critical step that affects the quality of the parts, production efficiency, and operational safety. The traditional cooling method is to place the high-temperature parts in a fixed position and let them cool naturally with the air. This method has many drawbacks: on the one hand, since the cooling process relies on natural air convection, the cooling efficiency is extremely low. It usually takes about 2 hours to cool the parts to a temperature that can be subsequently processed, transported, or inspected, which seriously restricts production efficiency.

[0004] The existing technical solution of Chinese Patent No. CN218224617U, entitled "An All-round Cooling Device for Surface Treatment of Metal Products," relies on a core cooling logic that involves placing a cooling component inside a cooling chamber to generate cold air. This, combined with a cooling fan, achieves uniform distribution of the cold air within the cooling space. Simultaneously, a motor drives the metal product to rotate, achieving an all-round cooling effect. However, this technical solution has several problems in practical applications, which can negatively impact the quality of metal products. These problems can be analyzed from the following three aspects: 1. This solution uses a forced cooling method of direct airflow from the refrigerator at close range. When the extremely cold air comes into contact with the surface of the high-temperature part, which is about 500°C, the air temperature near the surface of the part will drop sharply in a short time. The condensate will adhere to the surface of the metal part for a long time, which can easily cause oxidation and corrosion, directly damaging the surface quality of the part. 2. Due to the limited space between parts, the natural flow of cooling air on the surface of the parts is severely hindered. This causes the heat transfer process, which originally relied on air convection, to stagnate in the areas where parts are concentrated. Heat cannot be transferred to the surrounding cooling environment through effective air convection, making it difficult for the temperature of parts in these areas to drop quickly, thus prolonging the overall cooling cycle. 3. For shorter parts, the fixed cooling space will cause them to be in an overcooled state, with localized excessively low temperatures, further increasing the probability of water vapor condensing on the surface of the parts. For longer parts, due to the limited cooling space, the ends of the parts cannot fully contact the cooling airflow, which can easily lead to overheating at the ends. Summary of the Invention

[0005] In view of this, the present invention aims to solve the technical problems of forced cooling by close-range direct blowing of refrigeration units, which easily causes the air on the surface of high-temperature parts at 500°C to drop suddenly, resulting in condensation and corrosion. Furthermore, the airflow stagnation in the parts accumulation area prolongs the cooling cycle. At the same time, the fixed cooling space causes excessive cooling or overheating at the end of parts of different lengths, making it difficult to adapt to the cooling requirements of parts treated by high-temperature steam.

[0006] To achieve the above objectives, the technical solution of the present invention is implemented as follows: This invention discloses a steam-treated product cooling device, comprising: an outer barrel, an inner barrel, a top cover, a flow guiding and air supply assembly, and an adjustment space assembly; The inner barrel is disposed inside the outer barrel, and a chamber for containing the cooling medium is formed between the inner barrel and the outer barrel; The top cover fits onto the top of the outer barrel and is equipped with an exhaust safety valve port; The cooling medium circulation path includes an inlet pipe and an outlet pipe connected to the chamber, which are used to allow the cooling medium to flow through the chamber to indirectly cool the inner tank. An air circulation passage includes an air inlet and an air outlet that communicate with the inside of the inner barrel. The air inlet is used to connect to an external blower, and the air outlet is used to exhaust the air inside the inner barrel. An airflow guiding and supplying assembly is disposed inside the inner barrel and is used to distribute and guide the cooling airflow introduced by the air inlet to the outside of the parts placed inside the inner barrel. An adjustment space component, located inside the inner barrel, is used to adjust the size of the cooling space inside the inner barrel to accommodate the parts, based on the size of the parts placed inside.

[0007] Furthermore, the liquid inlet pipe is located at the bottom of the outer tub, the liquid outlet pipe is located at the top of the outer tub, the air inlet is located on the side wall of the inner tub, and the air outlet is located at the top of the top cover.

[0008] Furthermore, the airflow guiding and supply assembly includes: A spiral guide plate is installed inside the inner barrel of the equipment, and one lower end of the spiral guide plate is located at the air inlet opened on the inner barrel. A sealing plate is installed on the top of the inner barrel, and the sealing plate is fixedly connected to the upper end of the spiral guide plate; The flow divider has a hollow structure and is installed at the bottom of the inner barrel. The flow divider is fixedly connected to the spiral guide plate on the inner side of the spiral guide plate. The front end of the flow divider has an inlet groove for air to flow in. A directional plate is installed between the inner barrel and the flow divider plate. The directional plate is used to guide air through itself into the inlet groove and further into the interior of the flow divider plate. A limiting plate is installed on the top of the diverter plate, and the limiting plate is fixedly connected to the spiral guide plate inside the spiral guide plate. An air inlet groove for air circulation is provided in the middle of the limiting plate. The spray bar is located at the top center of the limiting plate, and the spray bar is connected to the air intake groove in the middle of the limiting plate; A protective unit is disposed on the outside of the limiting plate to protect the spray bar and prevent it from being damaged by other parts of the equipment. A rotating unit, which is mounted on the top cover of the device, is used to drive the spray bar to rotate about its own axis.

[0009] Furthermore, the protective unit includes several protective frames and protective seats. The protective frames are arranged in a circular array on the top of the limiting plate and located outside the spray rod. The protective frames have a V-shaped structure, and protective seats are installed on the top of the protective frames.

[0010] Furthermore, the rotating unit includes: The motor is mounted inside the top cover via a motor mount. Electromagnetic base number one is installed at the output end of the motor; The second electromagnetic base is installed on the top of the spray rod and is rotatably connected inside the protective base. The lower end of the spray rod is rotatably connected inside the limiting plate.

[0011] Furthermore, the second electromagnetic base has a flow divider groove inside, and the spray rod is connected to the flow divider groove to guide the air in the spray rod into the flow divider groove. The outer side of the second electromagnetic base is equipped with a spray inclined plate in a ring array, and the spray area of ​​the spray inclined plate is located within the radius coverage area of ​​the limiting plate, which is used to spray the air in the flow divider groove into the radius area of ​​the limiting plate.

[0012] Furthermore, a support base is installed at the bottom of the inner barrel. The support base has an annular stepped structure and is installed on the bottom wall of the outer barrel. A vortex guide plate is installed on the bottom wall of the inner barrel. The vortex guide plate is arranged inside the flow divider plate, and one end of the outer edge of the vortex guide plate is arranged on one side of the inlet groove, while the other end of the vortex guide plate is arranged on one side of the air inlet groove of the limiting plate.

[0013] Furthermore, the adjustment space component includes: The adjustment platform is mounted on top of the limit plate; The outer ring is installed on the bottom outer side of the adjustment platform, and the limiting plate has an outer ring groove on the side opposite to the outer ring; The inner ring is installed on the bottom inner side of the adjustment platform and is slidably connected in the air intake groove of the limiting plate. Two electric actuators are provided and symmetrically installed inside the limiting plate. The moving end of the electric actuator is fixedly connected to the bottom of the adjusting table.

[0014] Furthermore, an air-gathering ring is installed on the inner wall of the inner ring. The air-gathering ring has a U-shaped cross-section. The inner ring slides on the outside of the spray bar. An air outlet groove is opened on the top of the air-gathering ring. A ring array of pads is installed on the top of the adjustment platform. The air outlet groove and the pads are aligned.

[0015] A method using a steam-processed product cooling apparatus includes the following steps: First, inject cooling medium into the chamber between the inner and outer barrels through the liquid inlet pipe to the preset height, close the valve of the liquid inlet pipe, start the blower and adjust the air inlet channel to ensure smooth cold air delivery and complete the preparations before cooling. Second, based on the length of the part, activate the control push rod in the limit plate: for short parts, raise the adjustment table to shorten the cooling space; for long parts, lower the adjustment table to expand the cooling space. Place the part on the pad and leave space for the spray rod. Third, open the liquid outlet valve to discharge the heated cooling medium, intermittently replenish the new cooling medium through the liquid inlet pipe, start the blower and air guide assembly, open the air outlet to form an air closed loop, and start dual cooling; Fourth, the cold air is split into two paths by the splitter plate: one path rises along the spiral guide plate and exchanges heat around the outside of the part, and the other path enters the splitter plate through the directional plate and the inlet groove, accelerates through the vortex guide plate, and enters the spray bar through the conical inlet groove of the limiting plate. The airflow is sprayed towards the side of the part through the spray bar. Fifth, start the motor to drive the first electromagnetic base to rotate. Through magnetic field transmission, the second electromagnetic base drives the spray bar to rotate. The spray bar converts the airflow into a rotating airflow and sprays it into the gaps between the parts, which, together with the surrounding airflow, provides all-round cooling. Sixth, the airflow inside the spray bar passes through the diversion groove and the spray plate to spray the top surface of the part. The air-gathering ring intercepts the airflow blocked by the spray bar and guides it into the gap between the bottom surface of the part for heat dissipation through the air outlet groove. Seventh, monitor the inner barrel pressure. The safety valve will automatically release pressure. After the parts have cooled to the required level, turn off the motor and blower, discharge the cooling medium, adjust the height of the adjusting table, and remove the parts to complete the cooling process.

[0016] Compared to existing technologies, the steam-treated product cooling device and method described in this invention have the following advantages: 1. This invention employs a dual cooling and non-direct airflow design. Specifically, the cooling medium between the outer and inner barrels indirectly lowers the ambient temperature of the inner barrel, reducing the temperature difference between the parts and the cooling environment and preventing sudden cooling. Furthermore, the airflow guide assembly divides the blower's cold air into two paths. A spiral guide plate guides the airflow around the outside of the parts (non-direct blowing), while the spray bar directs the airflow into the gaps between the parts. Combined with the spray ramp and air-gathering ring, this achieves full-dimensional airflow coverage. The airflow contacts the surface of the parts evenly and gently, without any localized rapid cooling, eliminating the conditions for condensation at the source and thus preventing oxidation and corrosion.

[0017] 2. This invention optimizes the airflow path within the diverter plate using a vortex guide plate, eliminating local eddies and ensuring stable airflow delivery. Secondly, the V-shaped bend of the protective frame diverts the airflow, guiding it to penetrate deep gaps in the parts. Furthermore, the invention drives the jet rod to rotate via a rotating unit, transforming the airflow into a rotating, diffused airflow covering a wider area. The converging ring guides the airflow into the gaps at the bottom of the parts, creating a three-dimensional airflow circulation on the bottom, sides, and top of the parts, breaking up airflow stagnation in areas where heat accumulates. Heat is rapidly transferred to the cooling environment through convection, significantly improving cooling efficiency. 3. This invention adjusts the design of the spatial components. First, the electric actuator can extend and retract according to the length of the part, raising and lowering the adjustment platform. For short parts, it rises to shorten the space, reducing redundant cold air and avoiding localized low temperatures; for long parts, it lowers to increase the space, ensuring end-point contact with the airflow. Second, the outer ring slides along the outer ring groove to prevent airflow leakage, while the inner ring slides along the air inlet groove, ensuring stable airflow delivery without affecting the cooling function during space adjustment. Third, the padding blocks adapt to parts of different diameters, solving the problem of uneven cooling caused by fixed space and improving the equipment's versatility. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a longitudinal cross-sectional view of the outer and inner tubs of the present invention; Figure 3 This is a top view of the overall structure of the present invention; Figure 4 This is a top view of the outer barrel of the present invention; Figure 5This is a schematic diagram of the airflow guiding and supply component of the present invention; Figure 6 This is a schematic diagram of the bottom wall of the inner barrel of the present invention; Figure 7 This is a schematic diagram of the limiting disc and the spray bar of the present invention; Figure 8 This is an exploded view of the limiting disc and the injection rod of the present invention; Figure 9 This is a schematic diagram of the outer and inner rings of the present invention; Figure 10 yes Figure 5 A magnified view of part A in the image; Figure 11 yes Figure 2 A magnified view of part B in the image.

[0019] The markings in the diagram represent: 1. Outer barrel; 11. Inner barrel; 12. Top cover; 13. Air inlet; 14. Liquid inlet pipe; 15. Liquid outlet pipe; 16. Air outlet; 2. Airflow guiding and supply assembly; 21. Spiral guide plate; 22. Sealing plate; 23. Diverter plate; 230. Inlet channel; 24. Directional plate; 25. Limiting plate; 26. Spray bar; 27. Protective unit; 271. Protective frame; 272. Protective base; 28. Support base; 29. ​​Vortex guide plate; 210. Rotating unit; 2101. Motor; 2102. Electromagnetic base No. 1; 2103. Electromagnetic base No. 2; 2104. Diverter trough; 2105. Injection ramp; 211. Adjustment space assembly; 212. Adjustment platform; 213. Outer ring; 214. Inner ring; 215. Electric actuator; 221. Wind concentrator ring; 222. Air outlet trough; 223. Pad block. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0021] See Figures 1-4As shown, this invention provides a steam-treated product cooling device, including: an outer barrel 1, an inner barrel 11, a top cover 12, a flow guiding and air supply assembly 2, and an adjustment space assembly 211; the outer barrel 1 and the inner barrel 11 form a double-layer barrel structure, and the chamber between them is a cooling medium accommodating space, which is the core carrier for realizing the cooling function. The interior of the inner barrel 11 is the placement and cooling space for the steam-treated products. Through the physical separation of the inner and outer barrels 1, it is ensured that the products are cooled in an independent space, and the cooling medium can be allowed to circulate around the inner barrel 11 for efficient heat exchange. The inner barrel 11 is disposed inside the outer barrel 1, and a space is formed between the inner barrel 11 and the outer barrel 1. The device includes a chamber for containing cooling medium; a top cover 12 that covers the top of the outer barrel 1 and is equipped with an exhaust safety valve that can automatically release pressure when the internal pressure of the device is too high, thus preventing damage to the equipment due to abnormal pressure; a cooling medium circulation passage including an inlet pipe 14 and an outlet pipe 15 connected to the chamber, for allowing the cooling medium to flow through the chamber to indirectly cool the inner barrel 11; and an air circulation passage including an air inlet 13 and an air outlet 16 connected to the inside of the inner barrel 11, wherein the air inlet 13 is used to connect to an external blower and the air outlet 16 is used to exhaust the air inside the inner barrel 11.

[0022] The steam-treated product cooling device is based on a double-layer structure of an outer barrel 1 and an inner barrel 11. The chamber between the outer barrel 1 and the inner barrel 11 is supplied with cooling medium through the liquid inlet pipe 14, forming a cooling medium circulation path around the inner barrel 11. After absorbing the heat conducted by the inner barrel 11 and the products inside, the medium is discharged through the liquid outlet pipe 15, achieving indirect cooling. At the same time, an external blower sends in cold air through the air inlet 13 on the side wall of the inner barrel 11. The air guiding and blowing component 2 inside the inner barrel 11 evenly distributes the cold air and sprays it directionally between the parts. The residual heat on the surface of the parts is carried away by air convection. The hot air after absorbing heat is discharged through the air outlet 16 of the top cover 12, forming an air circulation path to enhance direct cooling. The exhaust safety valve of the top cover 12 automatically releases pressure when the internal pressure is too high, achieving efficient and uniform cooling of the parts.

[0023] This device combines indirect circulation of the cooling medium with direct airflow cooling. A cooling medium containment chamber is established through a double-layer structure of outer barrel 1 and inner barrel 11. At the same time, an airflow guiding component 2 is designed inside the inner barrel 11, forming a dual cooling method of heat conduction and air convection. This is a breakthrough improvement over the existing single cooling mode. By complementing the two cooling methods, it avoids the condensation problem of single air cooling and solves the inefficiency of single medium cooling.

[0024] See Figures 3-7As shown, the airflow guiding and supplying assembly 2 is disposed inside the inner barrel 11 to evenly distribute the cooling airflow introduced by the air inlet 13 and spray the evenly distributed airflow between the parts placed inside the inner barrel 11. The airflow guiding and supplying assembly 2 includes: a spiral guide plate 21, which is installed inside the inner barrel 11 of the equipment, and the lower end of the spiral guide plate 21 is disposed at the air inlet 13 opened on the inner barrel 11; a sealing plate 22, which is installed on the top of the inner barrel 11, and the sealing plate 22 is fixedly connected to the upper end of the spiral guide plate 21; and a flow divider 23, which has a hollow structure, is installed at the bottom of the inner barrel 11, and the flow divider 23 is inside the spiral guide plate 21. The flow divider 23 is fixedly connected to the spiral guide plate 21 and has an inlet groove 230 at its front end for air inflow; the directional plate 24 is installed between the inner barrel 11 and the flow divider 23 and guides air through itself into the inlet groove 230 and further into the interior of the flow divider 23; the limiting plate 25 is installed on the top of the flow divider 23 and is fixedly connected to the spiral guide plate 21 inside the spiral guide plate 21, and has an air inlet groove for air flow in the middle of the limiting plate 25; the spray rod 26 is located at the top middle position of the limiting plate 25 and is connected to the air inlet groove in the middle of the limiting plate 25. It should be noted that the parts are first evenly placed inside the inner barrel 11, with space reserved in the middle for the spray bar 26. Then, the cold air delivered by the external blower enters the inner barrel 11 through the air inlet 13 on the side wall. Under the diversion effect of the flow divider 23, the cold air is divided into two parts to avoid the problem of condensation and corrosion on the surface of the parts caused by traditional forced cooling. One part of the cold air flows to one end of the spiral guide plate 21 and rises along the spiral path. During this process, the spiral guide plate 21, because it is fixedly connected to the inner barrel 11, can transfer the low temperature of the outer wall of the inner barrel 11 (cooled by the cooling medium between the outer barrel 1 and the inner barrel 11) to itself, so that the flowing cold air is further cooled. At the same time, the spirally rising airflow will diffuse around the outer wall of the parts, which, together with the heat transfer effect of the inner wall of the inner barrel 11, achieves the desired cooling effect. The outer side of the parts is cooled evenly; another part of the cold air is blown towards the directional plate 24. Under the guidance of the directional plate 24, it enters the interior of the diverter plate 23 through the inlet groove 230 at the front end of the diverter plate 23, and then flows through the air inlet groove in the middle of the limiting plate 25 and enters the spray rod 26. Finally, the spray rod 26 located in the middle of the inner barrel 11 evenly sprays the cold air between the parts, effectively diffusing the cold air to reduce the heat accumulated on the parts. At the same time, the sealing plate 22 seals and limits the top of the spiral guide plate 21, ensuring that the spirally rising cold air can fully act on the outer side of the parts. The two airflows work together to achieve all-round cooling of the inner and outer sides of the parts without local rapid cooling. This avoids oxidation and corrosion caused by condensation and solves the problem of heat transfer in the parts accumulation area, improving cooling efficiency and part quality.

[0025] It is worth noting that the design of the limiting disk 25 being fixed inside the spiral guide plate 21, with the edge of the limiting disk 25 being tightly fixed to the inner wall of the spiral guide plate 21, means that the airflow that originally rises along the spiral path in the spiral airflow channel formed by the spiral guide plate 21 will not be able to diffuse freely due to the obstruction of the limiting disk 25, and can only flow along the limited channel between the spiral guide plate 21 and the limiting disk 25, thus avoiding the airflow from diffusing and slowing down in the spiral channel.

[0026] The air inlet groove of the limiting plate 25 is conical in shape, so that the airflow dispersed in the split plate 23 can automatically converge to the small end of the air inlet groove, avoid the airflow from stagnating at the inlet of the air inlet groove, and facilitate the increase of the airflow velocity before entering the spray bar 26.

[0027] The airflow guiding and supply assembly 2 of this device adopts a combination structure of spiral guide plate 21, flow divider 23, directional plate 24, limiting plate 25 and spray bar 26. The spiral guide plate 21 guides the airflow to spiral upward along the inner wall of the inner barrel 11, realizing the surrounding cooling of the outer side of the parts and avoiding direct airflow. The flow divider 23 cooperates with the directional plate 24 to guide the airflow to the inside of the flow divider 23, and then accurately delivers it to the spray bar 26 through the air inlet groove of the limiting plate 25. The spray bar 26 is located in the middle of the inner barrel 11, and sprays the airflow evenly between the parts, solving the heat accumulation in the parts gathering area and realizing the all-round, dead-angle-free coverage of the airflow on the inner and outer sides of the parts.

[0028] See Figures 7-8 As shown, the protective unit 27 is located on the outside of the limiting plate 25 to protect the spray rod 26 and prevent it from being crushed or damaged by other parts of the equipment. The protective unit 27 includes several protective frames 271 and protective seats 272. The protective frames 271 are arranged in a ring array on the top of the limiting plate 25 and are located on the outside of the spray rod 26. The protective frames 271 have a V-shaped structure, and the protective seats 272 are installed on the top of the protective frames 271.

[0029] It should be noted that when parts or equipment placed inside the inner drum 11 experience slight displacement during operation, the protective frame 271 can directly block direct contact between external parts or components and the spray bar 26. Especially for slender structures like the spray bar 26 that require precise airflow delivery, it can effectively prevent deformation or breakage of the spray bar 26 or blockage of the air outlet 16 caused by compression, ensuring stable airflow delivery function of the spray bar 26. At the same time, the protective seat 272 on top covers the protective frame 271, which can prevent secondary damage to the spray bar 26 caused by falling parts, further enhancing the protective effect.

[0030] Secondly, the V-shaped protective frame 271 provides stable support for the parts and optimizes their placement. The two ends of the protective frame 271 directly contact the parts inside the inner barrel 11 and provide support. When the airflow ejected by the spray bar 26 flows into the gaps between the parts, some of the airflow will come into contact with the V-shaped corner of the protective frame 271. The corner surface of the V-shaped structure is inclined, which can guide and divert the airflow. The airflow that originally flows in a straight line will be deflected and diffused to the gaps between the parts on both sides after being guided by the corner surface, so that the airflow can penetrate into the deep gaps between the parts more fully. Especially for densely populated areas of parts, it can effectively fill the dead corners that the airflow cannot cover. At the same time, the diffused airflow and the surrounding airflow guided by the spiral guide plate 21 form a more complex airflow cycle, further enhancing the air convection effect inside the inner barrel 11, improving the heat removal efficiency, and shortening the cooling cycle.

[0031] See Figure 2 , Figure 5 and Figure 7 As shown, the rotating unit 210 is mounted on the top cover 12 of the equipment and is used to drive the spray rod 26 to rotate around its own axis. The rotating unit 210 includes: a motor 2101, which is mounted inside the top cover 12 via a motor mount; a first electromagnetic mount 2102, which is mounted on the output end of the motor 2101; and a second electromagnetic mount 2103, which is mounted on the top of the spray rod 26 and rotatably connected inside the protective seat 272. The lower end of the spray rod 26 is rotatably connected inside the limiting plate 25.

[0032] It should be noted that after the motor 2101 starts, it drives the first electromagnetic base 2102 at the output end to rotate; the first electromagnetic base 2102 and the second electromagnetic base 2103 at the top of the spray rod 26 generate magnetic torque through non-contact magnetic field action, driving the second electromagnetic base 2103 to rotate synchronously; the second electromagnetic base 2103 rotates in the protective base 272, and the lower end of the spray rod 26 rotates in the limiting plate 25. The spray rod 26 provides double support from the top and bottom, ensuring that the spray rod 26 rotates stably around its own axis. The rotating spray rod 26 converts the cooling airflow delivered by the air guiding and blowing assembly 2 into a rotating diffusion airflow, which cooperates with the surrounding rising airflow of the spiral guide plate 21 to evenly cover the parts in the inner barrel 11, solve the cooling dead corners, improve the cooling effect, and at the same time form a functional complement with the protective unit 27 to ensure the stable operation of the device.

[0033] See Figures 4-5As shown, a support base 28 is installed at the bottom of the inner barrel 11. The support base 28 has an annular stepped structure, which can further increase the contact area between the bottom of the inner barrel 11 and the cooling medium, and improve the heat transfer effect of the bottom wall of the inner barrel 11. The support base 28 is installed on the bottom wall of the outer barrel 1. A vortex guide plate 29 is installed on the bottom wall of the inner barrel 11. The vortex guide plate 29 is arranged inside the flow divider plate 23, and one end of the outer edge of the vortex guide plate 29 is arranged on one side of the inlet groove 230, and the other end of the vortex guide plate 29 is arranged on one side of the air inlet groove of the limiting plate 25.

[0034] It should be noted that the core function of the vortex guide plate 29 is to optimize the airflow transmission inside the splitter plate 23: First, it guides the airflow in a directional manner through the arc structure, establishing an efficient path from the inlet slot 230 to the limiting plate 25, reducing airflow impact loss and diffusion turbulence, and ensuring stable air supply to the inlet slot; Second, it causes the airflow to form a vortex, increasing the heat exchange area with the inner wall of the splitter plate 23, improving the airflow cooling efficiency, and working in conjunction with the conical structure of the inlet slot to achieve airflow acceleration and avoid stratification; Third, it eliminates the local vortices generated by airflow collision and reduces cooling dead zones.

[0035] See Figure 5 , Figure 7 , Figure 8 and Figure 9 As shown, the adjustment space assembly 211 is disposed inside the inner barrel 11 and is used to adjust the size of the cooling space inside the inner barrel 11 to accommodate the parts according to the size of the parts placed inside the inner barrel 11. The adjustment space assembly 211 includes: an adjustment platform 212, which is mounted on the top of the limiting plate 25, and several protective frames 271 slide up and down in the middle of the adjustment platform 212; an outer ring 213, which is installed on the bottom outer side of the adjustment platform 212, and the limiting plate 25 has an outer ring groove on the side opposite to the outer ring 213; an inner ring 214, which is installed on the bottom inner side of the adjustment platform 212, and the inner ring 214 slides in the air inlet groove of the limiting plate 25; and two electric push rods 215, which are symmetrically installed inside the limiting plate 25, and the moving end of the electric push rod 215 is fixedly connected to the bottom of the adjustment platform 212.

[0036] It should be noted that, for parts of different lengths, the effective cooling space inside the inner barrel 11 is dynamically changed by raising and lowering the adjusting table 212 via the telescopic drive of the electric actuator 215. When handling short-sized parts: Short parts are prone to excessive cooling due to excessive fixed cooling space. At this time, two electric push rods 215 symmetrically installed inside the limiting plate 25 are activated. Their moving ends extend upward, driving the adjusting table 212 to rise vertically. During the rise of the adjusting table 212, the outer ring 213 at the bottom slides synchronously along the outer ring groove of the limiting plate 25, and the inner ring 214 slides upward along the air inlet groove, ensuring that the adjusting table 212 does not deviate or tilt during the lifting and lowering process. As the adjusting table 212 rises, the height of the cooling space from the adjusting table 212 to the top cover 12 inside the inner barrel 11 is shortened, reducing the redundant space around the short parts and avoiding excessive cold air filling, which would cause a sudden drop in local temperature. When handling long parts: Long parts are prone to overheating at the end due to insufficient cooling space. At this time, the moving end of the control electric push rod 215 retracts, driving the adjustment table 212 to fall down along the double ring guide structure, increasing the cooling space height from the adjustment table 212 to the top cover 12, so that the end of the long part can be fully exposed in the cooling space, avoiding the airflow being unable to reach the end due to space limitation.

[0037] It is worth noting that the outer ring 213 is always embedded in the outer ring groove of the limiting plate 25. Even if the adjustment platform 212 is raised or lowered, it can still continuously block the surrounding airflow guided by the spiral guide plate 21 from spreading out of the cooling space, avoid large leakage of airflow due to space adjustment, and ensure that the surrounding airflow is concentrated around the parts on the adjustment platform 212, thereby enhancing the surrounding cooling effect on the outside of the parts.

[0038] When the inner ring 214 slides in the air inlet groove, it always stays in contact with the inner wall of the air inlet groove. This not only does not obstruct the air inlet groove from delivering airflow to the spray rod 26, but also prevents the airflow from being lost through the gap between the bottom of the adjustment table 212 and the edge of the air inlet groove. This ensures that the airflow ejected by the spray rod 26 can be fully applied between the parts, thereby improving the airflow utilization rate.

[0039] First, for short parts, the electric actuator 215 drives the adjustment platform 212 to rise, shortening the cooling space, reducing cold air redundancy, avoiding sudden drops in local temperature and water vapor condensation, reducing the risk of oxidation and corrosion, and ensuring the surface quality of the parts. Second, for long parts, the adjustment platform 212 lowers to increase the cooling space, allowing the end of the part to fully contact the airflow, avoiding overheating at the end, and achieving uniform cooling across the entire size. Third, relying on the double-ring structure of the outer ring 213 blocking and the inner ring 214 guiding, airflow leakage is prevented during space adjustment, improving airflow utilization and ensuring no loss of cooling efficiency. Fourth, the telescopic adjustment capability of the electric actuator 215 allows the device to adapt to parts of different lengths without changing equipment, and it also facilitates the placement of parts on the adjustment platform 212, enhancing the versatility of the equipment.

[0040] See Figure 5 ,and Figure 10As shown, the second electromagnetic base 2103 has a flow divider 2104 inside, and the spray rod 26 is connected to the flow divider 2104 to guide the air in the spray rod 26 into the flow divider 2104. The outer side of the second electromagnetic base 2103 is equipped with a ring-shaped array of spray inclined plates 2105, and the spray area of ​​the spray inclined plates 2105 is located within the radius coverage area of ​​the limiting plate 25, which is used to spray the air in the flow divider 2104 into the radius area of ​​the limiting plate 25.

[0041] It should be noted that the cooling airflow enters the interior of the spray bar 26 through the graded guide air supply component 2. When the airflow inside the spray bar 26 is transported upward, part of the airflow will naturally flow into the diversion groove 2104 of the second electromagnetic base 2103, providing an airflow source for cooling the top surface of the part; at the same time, another part of the airflow is still sprayed to the side along the spray bar 26, continuously acting on the side and gap of the part, realizing the coordinated cooling of the side and top surface of the part.

[0042] It should be noted that when the airflow enters the jet ramp 2105, it will be guided by the inclined structure of the ramp and sprayed at a downward angle to the top surface of the part. It penetrates the hot air layer on the top surface of the part and directly contacts the top surface of the part, filling the airflow coverage blind spot on the top surface of the part in traditional cooling. It expands the top surface coverage synchronously with the second electromagnetic base 2103, so that the airflow sprayed by the ramp forms a ring rotating airflow. The top surface jet airflow, which was originally fixed in direction, can evenly sweep across the top surface of all parts under the action of rotation, avoiding the problem of local top surface not being covered due to the fixed ramp. At the same time, the rotating airflow can also form a three-dimensional airflow circulation with the surrounding airflow on the side of the part (from the spiral guide plate 21) and the jet airflow in the gap of the part (from the jet rod 26), further improving the airflow flow inside the inner barrel 11.

[0043] See Figure 2 and Figure 11 As shown, an air-gathering ring 221 is installed on the inner wall of the inner ring 214. The air-gathering ring 221 has a U-shaped cross-section. The inner ring 214 slides on the outside of the spray bar 26. An air outlet groove 222 is opened on the top of the air-gathering ring 221. A ring array of pads 223 is installed on the top of the adjustment platform 212. The air outlet groove 222 and the pads 223 are aligned.

[0044] It should be noted that, since the inner ring 214 is fitted outside the spray bar 26 and rises and falls synchronously with the adjusting platform 212, when the adjusting platform 212 rises to accommodate short-sized parts, the inner ring 214 will move upwards simultaneously, inevitably blocking part of the side spray area of ​​the spray bar 26. This design incorporates a U-shaped concentrating ring 221 on the inner wall of the inner ring 214, with the concave surface of the concentrating ring 221 facing the spray bar 26. When the spray bar 26 sprays cooling airflow to the side, the airflow blocked by the inner ring 214 is precisely intercepted by the U-shaped concave surface of the concentrating ring 221, and then guided into the concave annular concentrating cavity, effectively preventing airflow impact. The airflow diffuses into the meaningless area behind the inner ring 214. Under its own pressure, the concentrated airflow in the converging cavity will naturally flow along the cavity wall of the U-shaped converging ring 221 to the air outlet 222 opened at the top. At the same time, when the part is placed on the pad 223, the pad 223 will raise the part, so that the bottom surface of the part and the top surface of the adjustment table 212 form a uniform gap. The width of this gap is precisely matched with the airflow coverage of the air outlet 222, ensuring that the airflow from the air outlet 222 can directly enter the gap between the bottom surface of the part and the adjustment table 212, completely avoiding the problem that the airflow cannot contact the bottom surface of the part due to the direct contact between the part and the adjustment table 212.

[0045] In existing technologies, because parts are placed directly on the cooling platform, there is almost no airflow contact between the bottom surface and the platform. This leads to stagnant airflow in the parts' accumulation areas, resulting in prolonged cooling cycles. The pad 223 supports the gaps on the bottom surface formed by the parts, providing a flow channel for airflow below the parts and preventing airflow blockage caused by the parts directly contacting the platform. The concentrating ring 221 transforms the dispersed airflow that was originally blocked by the inner ring 214 into concentrated and directional bottom airflow. When this airflow flows within the gaps, it can not only carry away the bottom heat but also diffuse upwards through the gaps between the parts, pushing the hot air in the parts' accumulation areas to flow and breaking the heat stagnation. Furthermore, in conjunction with the spiral airflow around the sides of the parts, the heat in the parts' accumulation areas can be effectively transferred to the cooling environment through convection, shortening the overall cooling cycle.

[0046] A method of using a steam-treated product cooling device includes the following steps: First, inject cooling medium into the chamber between the inner barrel 11 and the outer barrel 1 through the liquid inlet pipe 14 to a suitable height, close the valve, start the external blower, and adjust the air inlet 13 channel to ensure smooth cold air delivery and complete the preparations before cooling.

[0047] Second, depending on the length of the part, start the electric push rod 215 inside the limit plate 25: for short parts, the electric push rod 215 extends and drives the adjustment table 212 to rise, and the inner ring 214 and outer ring 213 slide synchronously to shorten the cooling space; for long parts, the electric push rod 215 retracts and lowers the adjustment table 212 to increase the space, and places the part on the pad 223 of the adjustment table 212, leaving space for the spray rod 26. Third, open the outlet pipe 15 valve to discharge the heating cooling medium, intermittently replenish the new medium through the inlet pipe 14, start the blower, and cold air enters the inner tank 11 through the air inlet 13. Turn on the air guide and air supply component 2, open the air outlet 16 to form an air closed loop, and start the dual cooling. Fourth, the cold air is split into two paths by the splitter plate 23: one path rises along the spiral guide plate 21, absorbs the cold energy of the inner barrel 11 and then circulates around the outside of the parts for heat exchange; the other path enters the splitter plate 23 through the directional plate 24 and the inlet groove 230, is accelerated by the vortex guide plate 29, and enters the spray bar 26 through the conical air inlet groove of the limiting plate 25, and then sprays onto the side of the parts. Fifth, start the motor 2101 inside the top cover 12, drive the first electromagnetic base 2102 to rotate, and drive the second electromagnetic base 2103 to rotate the spray bar 26 through magnetic field transmission. The spray bar 26 converts the airflow into a rotating airflow, which is evenly sprayed onto the gaps between the parts, and achieves all-round cooling in conjunction with the surrounding airflow. Sixth, the air inside the spray bar 26 flows into the diversion groove 2104 of the second electromagnetic base 2103, and is sprayed obliquely to the top surface of the part through the spray inclined plate 2105. As the electromagnetic base rotates, it covers the top surface. The wind gathering ring 221 intercepts the blocked airflow of the spray bar 26, and guides it into the gap of the bottom surface of the part through the air outlet groove 222, taking away the residual heat of the bottom surface. Seventh, monitor the pressure of the inner tub 11 in real time. The exhaust safety valve automatically releases pressure to prevent equipment damage. After the parts have cooled to the required level, turn off the motor 2101 and blower, discharge the cooling medium, start the electric push rod 215 to adjust the height of the adjusting table 212, remove the parts, and complete one cooling process. The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art, under the guidance of this application, can make many other forms without departing from the spirit and scope of the claims, all of which fall within the protection scope of this application.

Claims

1. A steam-treated product cooling device, characterized in that... ,include: Outer tub (1), inner tub (11), top cover (12), airflow guiding and supplying assembly (2), and adjustment space assembly (211); The inner barrel (11) is disposed inside the outer barrel (1), and a chamber for containing the cooling medium is formed between the inner barrel (11) and the outer barrel (1); The top cover (12) is fitted onto the top of the outer barrel (1) and is provided with an exhaust safety valve port; The cooling medium circulation path includes an inlet pipe (14) and an outlet pipe (15) connected to the chamber, for allowing the cooling medium to flow through the chamber to indirectly cool the inner barrel (11); The air circulation passage includes an air inlet (13) and an air outlet (16) connected to the inside of the inner barrel (11). The air inlet (13) is used to connect to an external blower, and the air outlet (16) is used to exhaust the air inside the inner barrel (11). The airflow guiding assembly (2) is disposed inside the inner barrel (11) and is used to distribute and guide the cooling airflow introduced by the air inlet (13) to the outside of the parts placed inside the inner barrel (11); The airflow guiding and supply assembly (2) includes: A spiral guide plate (21) is installed inside the inner barrel (11) of the equipment, and one lower end of the spiral guide plate (21) is arranged at the air inlet (13) opened on the inner barrel (11). A sealing plate (22) is installed on the top of the inner barrel (11), and the sealing plate (22) is fixedly connected to the upper end of the spiral guide plate (21); The diverter plate (23) has a hollow structure. The diverter plate (23) is installed at the bottom of the inner barrel (11), and the diverter plate (23) is fixedly connected to the spiral guide plate (21) on the inner side. The front end of the diverter plate (23) is provided with an inlet groove (230) for air to flow in. A directional plate (24) is installed between the inner barrel (11) and the diverter plate (23). The directional plate (24) is used to guide air through itself into the inlet groove (230) and further into the interior of the diverter plate (23). A limiting plate (25) is installed on the top of the diverter plate (23), and the limiting plate (25) is fixedly connected to the spiral guide plate (21) inside the spiral guide plate (21). An air inlet groove for air circulation is provided in the middle of the limiting plate (25). The spray bar (26) is located at the top center of the limiting plate (25), and the spray bar (26) is connected to the air inlet groove in the middle of the limiting plate (25); The protective unit (27) is located on the outside of the limiting plate (25) to protect the spray rod (26) and prevent the spray rod (26) from being squeezed and damaged by other parts of the equipment; A rotating unit (210), which is disposed on the top cover (12) of the device, is used to drive the spray bar (26) to rotate about its own axis; The bottom of the inner barrel (11) is equipped with a support base (28), which has an annular stepped structure. The support base (28) is installed on the bottom wall of the outer barrel (1). The bottom wall of the inner barrel (11) is equipped with a vortex guide plate (29). The vortex guide plate (29) is arranged inside the flow divider plate (23), and one end of the outer edge of the vortex guide plate (29) is arranged on one side of the inlet groove (230). The other end of the vortex guide plate (29) is arranged on one side of the air inlet groove of the limiting plate (25). An adjustment space assembly (211), disposed inside the inner barrel (11), is used to adjust the size of the cooling space inside the inner barrel (11) for accommodating the parts according to the size of the parts placed inside the inner barrel (11). The adjustment space assembly (211) includes: The adjustment platform (212) is mounted on top of the limit plate (25); The outer ring (213) is installed on the bottom outer side of the adjustment platform (212), and the limiting plate (25) has an outer ring (213) groove on the side opposite to the outer ring (213); Inner ring (214), which is installed on the bottom inner side of the adjustment platform (212), the inner ring (214) is slidably connected in the air intake groove of the limiting plate (25); Two electric actuators (215) are provided and are symmetrically installed inside the limiting plate (25). The moving end of the electric actuator (215) is fixedly connected to the bottom of the adjusting table (212).

2. The steam-treated product cooling device according to claim 1, characterized in that, The liquid inlet pipe (14) is located at the bottom of the outer barrel (1), the liquid outlet pipe (15) is located at the top of the outer barrel (1), the air inlet (13) is located on the side wall of the inner barrel (11), and the air outlet (16) is located at the top of the top cover (12).

3. The steam-treated product cooling device according to claim 1, characterized in that, The protective unit (27) includes several protective frames (271) and protective seats (272). Several protective frames (271) are arranged in a ring array on the top of the limiting plate (25) and located outside the spray rod (26). The protective frames (271) have a V-shaped structure, and the protective seats (272) are installed on the top of several protective frames (271).

4. The steam-treated product cooling device according to claim 1, characterized in that, The rotating unit (210) includes: The motor (2101) is mounted inside the top cover (12) via a motor mount; Electromagnetic base No. 1 (2102) is installed on the output end of motor (2101); The second electromagnetic base (2103) is mounted on the top of the spray rod (26) and is rotatably connected inside the protective base (272), the lower end of which is rotatably connected inside the limiting plate (25).

5. A steam-treated product cooling device according to claim 4, characterized in that, The second electromagnetic base (2103) has a flow divider (2104) inside. The spray rod (26) is connected to the flow divider (2104) to guide the air in the spray rod (26) into the flow divider (2104). The second electromagnetic base (2103) is equipped with a spray ramp (2105) arranged in a ring on the outside. The spray area of ​​the spray ramp (2105) is located within the radius coverage area of ​​the limiting disk (25) to spray the air in the flow divider (2104) into the radius area of ​​the limiting disk (25).

6. A steam-treated product cooling device according to claim 1, characterized in that, The inner wall of the inner ring (214) is equipped with a wind-gathering ring (221), the cross-section of the wind-gathering ring (221) is U-shaped, the inner ring (214) slides on the outside of the spray bar (26), the top of the wind-gathering ring (221) is provided with an air outlet groove (222), the top of the adjustment platform (212) is equipped with a ring array of pads (223), and the air outlet groove (222) and the pads (223) are aligned.

7. A method for cooling steam-treated products, using the steam-treated product cooling apparatus as described in any one of claims 1-6, characterized in that: Includes the following steps: First, inject cooling medium into the chamber between the inner barrel (11) and the outer barrel (1) through the liquid inlet pipe (14) to the preset height, close the valve of the liquid inlet pipe (14), start the blower to adjust the air inlet (13) channel, ensure smooth cold air delivery, and complete the preparation before cooling. Second, according to the length of the part, start the control push rod (215) in the limit plate (25): the short part makes the adjustment table (212) rise to shorten the cooling space, the long part makes the adjustment table (212) fall to expand the cooling space, place the part on the pad (223) and leave space for the spray rod (26); Third, open the valve of the liquid outlet pipe (15) to discharge the heated cooling medium, intermittently replenish the new cooling medium through the liquid inlet pipe (14), start the blower and the air guide assembly (2), open the air outlet to form an air closed loop, and start the dual cooling; Fourth, the cold air is divided into two paths by the splitter plate (23): one path rises along the spiral guide plate (21) and exchanges heat around the outside of the part, and the other path enters the splitter plate (23) through the directional plate (24) and the inlet groove (230), increases speed through the vortex guide plate (29), and enters the spray bar (26) through the conical air inlet groove of the limiting plate (25). The airflow is sprayed towards the side of the part through the spray bar (26); Fifth, start the motor (2101) to drive the first electromagnetic base (2102) to rotate. Through magnetic field transmission, the second electromagnetic base (2103) drives the spray bar (26) to rotate. The spray bar (26) converts the airflow into a rotating airflow and sprays it into the gap between the parts, cooperating with the surrounding airflow for all-round cooling. Sixth, the airflow inside the spray bar (26) is sprayed onto the top surface of the part through the diversion groove (2104) and the spray ramp (2105). The air gathering ring (221) intercepts the airflow blocked by the spray bar (26) and guides it into the gap between the bottom surface of the part for heat dissipation through the air outlet groove (222). Seventh, monitor the pressure of the inner barrel (11), the safety valve will automatically release pressure, and after the parts have cooled to the standard, turn off the motor and blower, discharge the cooling medium, adjust the height of the adjustment table (212) to remove the parts, and complete the cooling.

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