A heat treatment cooling device for stainless steel forgings used in nuclear power

Abstract

The present invention relates to a heat treatment cooling device for a stainless steel forging used in nuclear power, which belongs to the technical field of forging heat treatment. The device includes a body, an inner cavity is arranged inside the body, and a ventilation opening is formed at the middle position of the top of the inner cavity. An air cooling component is arranged at the top of the ventilation opening. One end of the body is provided with an inlet and outlet communicating with the inner cavity, and a support component for supporting the forging body is inserted inside the inlet and outlet. A displacement component for driving the support component to move out and move in is installed on the body. First, second, third, and fourth flow dividing plates are fixedly installed on the inner walls at both ends of the inner cavity in sequence from outside to inside. The present invention can directly perform air cooling operation on the stainless steel forging, making the cooling speed faster, enabling the surrounding of the stainless steel forging to come into contact with the cold air flow in the first time and the contact to be uniform, avoiding the problem of deformation caused by the temperature difference generated during contact, and improving the cooling effect of the entire device.

Description

Technical Field

[0001] The present invention relates to the technical field of forging heat treatment, and specifically discloses a heat treatment cooling device for stainless steel forgings used in nuclear power. Background Art

[0002] Austenitic steel is a stainless steel material with excellent corrosion resistance and high-temperature strength, and is widely used in the nuclear power field. The manufacturing process of nuclear power austenitic stainless steel forgings mainly includes two links: forging and heat treatment. After forging, heat treatment process is also required to further improve the performance and quality of the forgings. Generally speaking, the heat treatment process is divided into two types: (1) Solution treatment, heating the forging to a certain temperature to make its structure uniform, and then rapidly cooling; (2) Quenching treatment, heating the forging to a certain temperature and then rapidly cooling to further improve its hardness and strength. Therefore, the cooling device is indispensable in the heat treatment process of nuclear power stainless steel forgings. The cooling device is divided into three cooling methods according to different cooling speeds: air cooling, pit cooling, and furnace cooling. The cooling speed in the air is faster than that in the sand pit and in the furnace.

[0003] Combined with carbon tool steel, alloy tool steel, bearing steel and other steel grades with relatively high carbon content, if slow cooling is adopted after forging, network carbide will precipitate at the grain boundaries, which will seriously affect the service performance of the forgings. Therefore, such forgings need to be air-cooled, blown or sprayed with rapid cooling first after forging, and then the forgings are placed in a sand pit or furnace for slow cooling. Austenitic steel is a steel grade without phase change, and there is no phase change during its post-forging cooling process, so air cooling treatment can be directly adopted.

[0004] After retrieval, a heat treatment cooling device with the publication number of CN107299209B is provided. The provided heat treatment cooling device includes a support device, a ventilation duct and a fan; wherein: the support device is used to support the workpiece; the ventilation duct is arranged opposite to the support device, and one end of the ventilation duct is connected to the fan; the fan is used to provide a cooling air flow to cool the workpiece. The heat treatment cooling device provided by the present invention can solve the problem that the workpiece after heat treatment in the background art is easily affected by natural factors during the cooling process, resulting in performance degradation.

[0005] Based on the above retrieval and combined with the existing technology, it is found that in the prior art, when air cooling treatment is carried out on the heat-treated stainless steel forgings, the air flow blows downward from the upper direction of the forging, and the air flow will contact the top of the forging for the first time, while the bottom and side surfaces of the forging can only contact the air flow after the forging rotates. As a result, the surface of the entire forging cannot contact the air flow evenly in the first time, and the forging will be deformed due to different temperature differences, resulting in poor cooling effect of the entire heat treatment cooling device. Therefore, a heat treatment cooling device for stainless steel forgings used in nuclear power is proposed to improve the above problems. Summary of the Invention

[0006] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the surface of the stainless steel forging cannot be in contact with the cold air flow evenly in the first place, and the forging will be deformed due to different temperature differences, resulting in poor cooling effect of the entire heat treatment cooling equipment.

[0007] To solve the above problems, the present invention provides a heat treatment cooling equipment for nuclear power stainless steel forgings, including a machine body. An inner cavity is provided inside the machine body, and a ventilation opening is provided at the middle position of the top of the inner cavity. An air-cooling component is arranged at the top of the ventilation opening. An inlet and outlet communicating with the inner cavity is provided at one end of the machine body, and a support component for supporting the forging body is inserted inside the inlet and outlet. A displacement component for driving the support component to move out and in is installed on the machine body. The inner walls at both ends of the inner cavity are fixedly installed with a first flow dividing plate, a second flow dividing plate, a third flow dividing plate, and a fourth flow dividing plate in sequence from outside to inside. The gaps between the first flow dividing plate, the second flow dividing plate, the third flow dividing plate, and the fourth flow dividing plate are set as air flow dividing channels, and the air flow dividing channels are communicated with the ventilation opening. The first flow dividing plate, the second flow dividing plate, the third flow dividing plate, and the fourth flow dividing plate are all designed as irregular arcs, and the bottom ends of the first flow dividing plate, the second flow dividing plate, the third flow dividing plate, and the fourth flow dividing plate are distributed from top to bottom along both sides of the forging body, and the top ends of the first flow dividing plate, the second flow dividing plate, the third flow dividing plate, and the fourth flow dividing plate are flush.

[0008] Through the above technical solutions: multiple cold air flows are agitated around the forging body, so that the surroundings of the nuclear power stainless steel forging can be in contact with the cold air flow in the first place and be in uniform contact with the air flow, avoiding the problem that the stainless steel forging is deformed due to the temperature difference generated during contact, and improving the cooling effect of the entire heat treatment cooling equipment.

[0009] The present invention is further provided that a diversion groove is arranged inside the machine body, and the diversion groove surrounds the inner cavity. Air guiding openings communicating with the inner cavity are provided at the top of both inner walls of the diversion groove. Oblique grooves are provided at both corners of the top of the machine body, and air discharge openings communicating with the bottom of the oblique grooves are provided on both inner walls of the diversion groove. Oblique seats are fixedly installed on both inner walls of the diversion groove near the air discharge openings at equal distances.

[0010] Through the above technical solutions: it is convenient to discharge the air flow that has been utilized during air cooling, ensure stable air pressure, and make the discharged air flow more complete through the oblique seats.

[0011] The present invention is further provided that heat dissipation grooves communicating with the inside of the diversion groove at equal distances are provided on the inner walls of both oblique grooves, and heat dissipation fins are fixedly installed on the inner walls of the heat dissipation grooves.

[0012] Through the above technical solutions: the heat dissipation fins are used to accelerate the condensation rate of water molecules, facilitating the recovery of more water.

[0013] The present invention is further configured such that a water storage tank is fixedly installed at the bottom of the body, and a support truss is fixedly installed at the bottom of the water storage tank. The air-cooling assembly includes an air-cooling unit fixedly installed on one side of the top of the support truss, and a ventilation duct is fixedly installed at the exhaust end of the air-cooling unit. A flow guide cover is fixedly installed at the exhaust end of the ventilation duct and the top of the ventilation opening, and a flow equalizing plate is fixedly installed on the inner wall of the flow guide cover.

[0014] Through the above technical solutions: direct air cooling operation can be carried out on the stainless steel forgings for nuclear power, enabling the stainless steel forgings to have a faster cooling rate.

[0015] The present invention is further configured such that a return port is provided at the middle position of the top of the water storage tank and the middle position of the bottom of the diversion groove, and a condensate water return assembly is provided between the water storage tank and the air-cooling unit.

[0016] Through the above technical solutions: the entire cooling device can achieve the performance of recovering condensate water.

[0017] The present invention is further configured such that the condensate water return assembly includes an installation port provided on one side of the water storage tank, and a liquid level sensor is fixedly installed on the inner wall of the installation port. A water pump is fixedly installed on the top side of the support truss close to the water storage tank, and the water pump is electrically connected to the liquid level sensor. A water suction pipe inserted into the water storage tank is fixedly installed at the water inlet end of the water pump, and a return pipe is fixedly installed between the water discharge end of the water pump and the water inlet end of the air-cooling unit.

[0018] Through the above technical solutions: the return water in the water storage tank can be introduced into the air-cooling unit, realizing the performance of recycling condensate water.

[0019] The present invention is further configured such that the support assembly includes a sealing cover plate hermetically clamped on the inner wall of the inlet and outlet, and connecting plates are fixed at both ends of the outer wall of one side of the sealing cover plate. Two support rails are fixedly installed on the inner wall of the inner cavity. Sliding seats slidably arranged in the support rails are fixedly installed on one side of each connecting plate. A limiting baffle is fixed at one end of the connecting plates, and two support shafts are rotatably connected between one side of the limiting baffle and one side of the sealing cover plate. Support gears are fixedly installed on both support shafts, and the forging body is placed on the two support gears. A rotating mechanism is provided at one end of the two support shafts.

[0020] Through the above technical solutions: it is convenient to support the forging body.

[0021] The present invention is further configured such that the rotating mechanism includes transmission wheels fixedly installed at one end of two support shafts, and a transmission belt is drivingly connected to the two transmission wheels. On the other side of the sealing cover plate, a rotating motor is fixedly installed for driving the support shafts and the transmission belt to rotate.

[0022] Through the above technical solutions: the forging body is driven to rotate slowly, so that the surface of the forging body can come into contact with the cold air flow more fully, further improving the cooling effect and cooling speed of the entire cooling device.

[0023] The present invention is further configured such that the displacement assembly includes mounting seats fixedly installed at one end of the outer walls on both sides of the machine body, and hydraulic cylinders are fixedly installed on one side of each mounting seat. The piston end of the hydraulic cylinder is fixedly installed with a movable plate on one side of the sealing cover plate.

[0024] Through the above technical solutions: it is convenient to drive the support assembly and the stainless steel forging to enter and exit the machine body, realizing the performance of convenient feeding and discharging.

[0025] The present invention is further configured such that a control box is fixedly installed on one side of the top of the support truss, and a controller is arranged in the control box. The controller is electrically connected to the air-cooling unit, the water pump, the liquid level sensor, and the rotating motor.

[0026] Through the above technical solutions: it can control the operation of the air-cooling unit, the water pump, the liquid level sensor, and the rotating motor, facilitating the control of the entire cooling device to work.

[0027] In summary, after adopting the above structure, compared with the prior art, the present invention has the following advantages:

[0028] 1. The provided air-cooling unit can directly air-cool the nuclear power stainless steel forging, making the cooling speed of the stainless steel forging faster. By the partitioning effect of the first flow dividing plate, the second flow dividing plate, the third flow dividing plate, and the fourth flow dividing plate, the cold air flow blown into the inner cavity by the air-cooling unit is circulated along multiple air flow channels, enabling multiple cold air flows to agitate around the stainless steel forging, so that the nuclear power stainless steel forging can come into contact with the cold air flow at the first time all around, replacing the prior art cooling method of directly blowing the cold air flow on the top of the stainless steel forging. Thus, the surface of the stainless steel forging can come into contact with the air flow evenly at the first time, avoiding the problem that the stainless steel forging deforms due to the temperature difference generated during contact, and improving the cooling effect of the entire heat treatment cooling device.

[0029] 2. The arranged diversion channels, air vents and exhaust vents can discharge the air flow that has been utilized during air cooling, ensuring stable air pressure. When the air flow is discharged, since the temperature outside the machine body is lower than that inside, the water molecules in the discharged air flow condense into liquid on the inner wall of the diversion channels. With the assistance of the heat dissipation fins, the condensation speed of the water molecules is faster, enabling the condensed water to fall to the bottom of the diversion channels and enter the water storage tank along the return port for collection. Thus, the entire cooling device realizes the performance of recovering condensed water. Then, the arranged condensed water return assembly introduces the returned water in the water storage tank into the air cooling unit, achieving the performance of recovering and reusing the condensed water.

[0030] 3. By adopting the arranged support assembly and displacement assembly, the support assembly and the stainless steel forging can be driven to move in and out of the machine body under the action of the displacement assembly, realizing the performance of convenient feeding and discharging. During air cooling, the stainless steel forging can be driven to rotate slowly under the action of the rotating mechanism, enabling the surface of the stainless steel forging to come into contact with the cold air flow more fully, further improving the cooling effect and cooling speed of the entire cooling device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a three-dimensional structural schematic diagram of a heat treatment cooling device for stainless steel forgings used in nuclear power plants according to the present invention;

[0032] Figure 2 It is a front view of a heat treatment cooling device for stainless steel forgings used in nuclear power plants according to the present invention;

[0033] Figure 3 It is a sectional view of the machine body of a heat treatment cooling device for stainless steel forgings used in nuclear power plants according to the present invention;

[0034] Figure 4 It is a schematic diagram of the exhaust vent and inlet / outlet structure of a heat treatment cooling device for stainless steel forgings used in nuclear power plants according to the present invention;

[0035] Figure 5 It is a central sectional view of the machine body of a heat treatment cooling device for stainless steel forgings used in nuclear power plants according to the present invention;

[0036] Figure 6 It is a front sectional view of the machine body of a heat treatment cooling device for stainless steel forgings used in nuclear power plants according to the present invention;

[0037] Figure 7 It is a schematic diagram of the flow dividing plate structure of a heat treatment cooling device for stainless steel forgings used in nuclear power plants according to the present invention;

[0038] Figure 8 It is a schematic diagram of the support assembly structure of a heat treatment cooling device for stainless steel forgings used in nuclear power plants according to the present invention;

[0039] Figure 9Schematic diagram of the air guide cover and flow equalizing plate structure of a heat treatment cooling device for a stainless steel forging used in nuclear power in the present invention;

[0040] Figure 10 Air flow direction diagram of a heat treatment cooling device for a stainless steel forging used in nuclear power in the present invention.

[0041] Explanation of the reference numerals in the figure:

[0042] 1. Support truss; 2. Air-cooled unit; 3. Control box; 4. Water pump; 5. Water storage tank; 6. Liquid level sensor; 7. Body; 8. Support assembly; 801. Sealing cover plate; 802. Connecting plate; 803. Limit baffle; 804. Slide seat; 805. Support gear; 806. Rotating motor; 807. Transmission belt; 9. Movable plate; 10. Hydraulic cylinder; 11. Deflector; 12. Heat dissipation fins; 13. Ventilation duct; 14. Return pipe; 15. Water suction pipe; 16. First flow dividing plate; 17. Inner cavity; 18. Inclined groove; 19. Mounting seat; 20. Heat dissipation groove; 21. Air outlet; 22. Inlet and outlet; 23. Support rail; 24. Ventilation opening; 25. Flow guiding groove; 26. Return port; 27. Forging body; 28. Inclined seat; 29. Second flow dividing plate; 30. Air guiding opening; 31. Third flow dividing plate; 32. Fourth flow dividing plate; 33. Flow equalizing plate. Detailed implementation manners

[0043] The following details two implementation manners of the present application with reference to the drawings.

[0044] The following details the embodiments of the present application. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation of the present application.

[0045] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present application.

[0046] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", "linkage", and "setting" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0047] The first implementation mode:

[0048] The present invention provides a heat treatment cooling device for a stainless steel forging used in nuclear power. Please refer to Figures 1 - 10, including a body 7, an inner cavity 17 is provided inside the body 7, and a ventilation opening 24 is provided at the middle position of the top of the inner cavity 17. An air-cooling component is provided at the top of the ventilation opening 24. A water storage tank 5 is fixedly installed at the bottom of the body 7, and a support truss 1 is fixedly installed at the bottom of the water storage tank 5. The air-cooling component includes an air-cooling unit 2 fixedly installed on one side of the top of the support truss 1, and an exhaust end of the air-cooling unit 2 is fixedly installed with a ventilation duct 13. An exhaust end of the ventilation duct 13 and the top of the ventilation opening 24 are fixedly installed with a flow guide cover 11. A flow equalizing plate 33 is fixedly installed on the inner wall of the flow guide cover 11. An inlet and outlet 22 communicating with the inner cavity 17 is provided at one end of the body 7, and a support component 8 for supporting a forging body 27 is inserted inside the inlet and outlet 22. A displacement component for driving the support component 8 to move out and move in is installed on the body 7. First flow dividing plates 16, second flow dividing plates 29, third flow dividing plates 31 and fourth flow dividing plates 32 are fixedly installed on the inner walls at both ends of the inner cavity 17 from outside to inside in sequence, and an air flow dividing channel is arranged at the gap between the first flow dividing plate 16, the second flow dividing plate 29, the third flow dividing plate 31 and the fourth flow dividing plate 32. The air flow dividing channel communicates with the ventilation opening 24. The first flow dividing plate 16, the second flow dividing plate 29, the third flow dividing plate 31 and the fourth flow dividing plate 32 are all designed as irregular arcs, and the bottom ends of the first flow dividing plate 16, the second flow dividing plate 29, the third flow dividing plate 31 and the fourth flow dividing plate 32 are distributed from top to bottom along both sides of the forging body 27. The top ends of the first flow dividing plate 16, the second flow dividing plate 29, the third flow dividing plate 31 and the fourth flow dividing plate 32 are flush. A diversion groove 25 is arranged inside the body 7, and the diversion groove 25 surrounds the inner cavity 17. Air guide openings 30 communicating with the inner cavity 17 are provided at the top of both inner walls of the diversion groove 25. Oblique grooves 18 are provided at both corners of the top of the body 7, and air exhaust openings 21 communicating with the bottom of the oblique grooves 18 are provided on both inner walls of the diversion groove 25. Oblique seats 28 are fixedly installed on both inner walls of the diversion groove 25 near the air exhaust openings 21 at equal distances. By using the above-mentioned air-cooling unit 2, direct air-cooling operation can be carried out on the stainless steel forging for nuclear power, so that the cooling speed of the stainless steel forging is faster. And by using the separating functions of the above-mentioned first flow dividing plate 16, second flow dividing plate 29, third flow dividing plate 31 and fourth flow dividing plate 32, the cold air flow blown into the inner cavity 17 by the air-cooling unit 2 is circulated along multiple air flow channels, so that multiple cold air flows can agitate around the stainless steel forging, enabling the periphery of the stainless steel forging for nuclear power to come into contact with the cold air flow in the first time, replacing the existing cooling method of directly blowing the cold air flow on the top of the stainless steel forging, so that the surface of the stainless steel forging can come into contact with the air flow evenly in the first time, avoiding the problem that the stainless steel forging is deformed due to the temperature difference generated during contact, and improving the cooling effect of the entire heat treatment cooling equipment.

[0049] In the present invention, heat dissipation grooves 20 communicating with the inside of the diversion groove 25 at equal distances are formed in the inner walls of the two inclined grooves 18, and heat dissipation fins 12 are fixedly installed on the inner walls of the heat dissipation grooves 20. A return port 26 is formed at the middle position of the top of the water storage tank 5 and the middle position of the bottom of the diversion groove 25. As Figure 1 , Figure 5 and Figure 6 shown, since the external temperature of the machine body 7 is lower than the internal temperature, water molecules in the discharged air flow condense into liquid on the inner wall of the diversion groove 25, and with the action of the heat dissipation fins 12, the condensation speed of the water molecules is faster, so that the condensed water can fall to the bottom of the diversion groove 25 and enter the water storage tank 5 along the return port 26 for collection, enabling the entire cooling device to achieve the performance of recovering condensed water.

[0050] In the present invention, the support assembly 8 includes a sealing cover plate 801 hermetically clamped to the inner wall of the inlet and outlet 22. Both ends of the outer wall of one side of the sealing cover plate 801 are fixed with connecting plates 802. Two support rails 23 are fixedly installed on the inner wall of the inner cavity 17. Slide seats 804 slidably arranged in the support rails 23 are fixedly installed on one side of each connecting plate 802. One end of each connecting plate 802 is fixed with the same limiting baffle 803. Two support shafts are rotatably connected between one side of the limiting baffle 803 and one side of the sealing cover plate 801. Support gears 805 are fixedly installed on both support shafts. The forging body 27 is placed on the two support gears 805. A rotating mechanism is arranged at one end of the two support shafts. The rotating mechanism includes driving wheels fixedly installed at one end of the two support shafts, and a transmission belt 807 is drivingly connected between the two driving wheels. A rotating motor 806 for driving the support shafts and the transmission belt 807 to rotate is fixedly installed on the other side of the sealing cover plate 801. As Figure 1 , Figure 3 , Figure 5 , Figure 6 and Figure 8 shown, by adopting the above support assembly 8 and rotating mechanism, the forging body 27 can be placed on the two support gears 805 to facilitate the support of the forging body 27, and the rotating motor 806 in the rotating mechanism drives the support shafts, the transmission belt 807 and the support gears 805 to rotate, so as to drive the forging body 27 to rotate slowly under the rotation and propulsion action of the support gears 805, enabling the surface of the forging body 27 to come into contact with the cold air flow more fully, and further improving the cooling effect and cooling speed of the entire cooling device.

[0051] In the present invention, the displacement assembly includes mounting seats 19 fixedly installed at one ends of the outer walls on both sides of the machine body 7. Hydraulic cylinders 10 are fixedly installed on one side of each mounting seat 19. A movable plate 9 is fixedly installed between the piston ends of the hydraulic cylinders 10 and one side of the sealing cover plate 801. As Figure 1 and Figure 3As shown, by adopting the above displacement component, the movable plate 9 and the sealing cover plate 801 can be driven to move back and forth under the telescopic action of the hydraulic cylinder 10, which is convenient for driving the support component 8 and the stainless steel forging to enter and exit the machine body 7, realizing the performance of convenient feeding and discharging.

[0052] In the present invention, a control box 3 is fixedly installed on one side of the top of the support truss 1, and a controller is arranged in the control box 3. The controller is electrically connected to the air-cooling unit 2 and the rotating motor 806, as Figure 1 and Figure 2 shown. By adopting the above controller, the operation of the air-cooling unit 2 and the rotating motor 806 can be controlled, which is convenient for controlling the entire cooling device to work.

[0053] In summary, the working principle of the present invention is as follows: During operation, the staff places the forging body 27 between the two support gears 805 on the support component 8, and uses the hydraulic cylinder 10 in the displacement component to adjust the positions of the movable plate 9 and the support component 8, so that the sealing cover plate 801 fits into the inlet and outlet 22, and the forging body 27 also enters the inner cavity 17. At this time, the staff starts the air-cooling unit 2 through the controller, and the cold air flow generated by the air-cooling unit 2 flows along the ventilation duct 13, and the cold air flow is evenly distributed by the flow equalizing plate 33 in the air deflector 11 and then enters the inner cavity 17 along the ventilation port 24. Thus, the air-cooling operation of the nuclear power stainless steel forging is directly carried out by the air-cooling unit 2. When the cold air flow enters the inner cavity 17, the cold air flow is circulated along multiple air flow channels by the partitioning action of the first flow dividing plate 16, the second flow dividing plate 29, the third flow dividing plate 31 and the fourth flow dividing plate 32, so that multiple cold air flows can agitate around the forging body 27, so that the periphery of the nuclear power stainless steel forging can come into contact with the cold air flow at the first time. Then, the used cold air flow is discharged along the diversion groove 25, the air guide port 30 and the air outlet 21. And when the air flow is discharged, since the temperature outside the machine body 7 is lower than the internal temperature, the water molecules in the discharged air flow condense into liquid on the inner wall of the diversion groove 25, and the condensation speed of the water molecules is made faster with the cooperation of the heat dissipation fins 12, so that the condensed water can fall to the bottom of the diversion groove 25 and enter the water storage tank 5 along the return port 26 for collection, so that the entire cooling device can realize the recovery of the condensed water; and during the air-cooling process, the staff can control the rotating motor 806 in the rotating mechanism to work through the controller, and drive the support shaft, the transmission belt 807 and the support gear 805 to rotate by the rotation mode of the rotating motor 806, so as to drive the forging body 27 to rotate slowly under the rotation and propulsion action of the support gear 805, so that the surface of the stainless steel forging can come into contact with the cold air flow more fully.

[0054] The second implementation mode:

[0055] Referring to Figure 1 、 Figure 2and Figure 3 , based on Embodiment 1, the following structure is added in this embodiment, so that this application has the function of recycling condensate water. The specific settings are as follows: A condensate water reflux assembly is provided between the storage water tank 5 and the air-cooled unit 2. The condensate water reflux assembly includes an installation port opened on one side of the storage water tank 5, and a liquid level sensor 6 is fixedly installed on the inner wall of the installation port. A water pump 4 is fixedly installed on the top side of the support truss 1 close to the storage water tank 5. The water pump 4, the liquid level sensor 6 and the controller are electrically connected. The water inlet end of the water pump 4 is fixedly installed with a water suction pipe 15 inserted into the storage water tank 5. A reflux pipe 14 is fixedly installed between the water discharge end of the water pump 4 and the water inlet end of the air-cooled unit 2. By using the above condensate water reflux assembly, the liquid level in the storage water tank 5 can be detected by the liquid level sensor 6. When the liquid level in the storage water tank 5 reaches a certain height, the liquid level signal is transmitted to the controller, and the water pump 4 is controlled to work, so as to introduce the recycled water in the storage water tank 5 into the air-cooled unit 2, realizing the performance of recycling condensate water.

[0056] Combined with the current actual requirements, the above embodiment adopted by this application, the protection scope is not limited to this. Within the knowledge scope of those skilled in the art, various changes made without departing from the concept of this application still fall within the protection scope of the present invention.

Claims

1. A heat treatment cooling device for stainless steel forgings used in nuclear power, including a machine body (7), characterized in that, Inside the body (7), there is an inner cavity (17). At the middle position of the top of the inner cavity (17), there is a ventilation opening (24). At the top of the ventilation opening (24), there is an air-cooling component. At the bottom of the body (7), a water storage tank (5) is fixedly installed, and at the bottom of the water storage tank (5), a support truss (1) is fixedly installed. The air-cooling component includes an air-cooling unit (2) fixedly installed on one side of the top of the support truss (1). At the exhaust end of the air-cooling unit (2), a ventilation duct (13) is fixedly installed. At the top of the exhaust end of the ventilation duct (13) and the ventilation opening (24), a flow guide cover (11) is fixedly installed. Inside the wall of the flow guide cover (11), a flow equalizing plate (33) is fixedly installed. At one end of the body (7), there is an inlet and outlet (22) communicating with the inner cavity (17). Inside the inlet and outlet (22), a support component (8) for supporting the forging body (27) is inserted. On the body (7), a displacement component for driving the support component (8) to move out and in is installed. On the inner walls at both ends of the inner cavity (17), a first flow dividing plate (16), a second flow dividing plate (29), a third flow dividing plate (31), and a fourth flow dividing plate (32) are fixedly installed in sequence from outside to inside. Between the gaps of the first flow dividing plate (16), the second flow dividing plate (29), the third flow dividing plate (31), and the fourth flow dividing plate (32), there is an air flow dividing channel, and the air flow dividing channel communicates with the ventilation opening (24). The first flow dividing plate (16), the second flow dividing plate (29), the third flow dividing plate (31), and the fourth flow dividing plate (32) are all designed as irregular arcs. The bottom ends of the first flow dividing plate (16), the second flow dividing plate (29), the third flow dividing plate (31), and the fourth flow dividing plate (32) are distributed from top to bottom along both sides of the forging body (27). The top ends of the first flow dividing plate (16), the second flow dividing plate (29), the third flow dividing plate (31), and the fourth flow dividing plate (32) are flush.

2. The heat treatment cooling equipment for stainless steel forgings used in nuclear power according to claim 1, characterized in that, Inside the body (7), there is a flow guide groove (25). The flow guide groove (25) surrounds the inner cavity (17). On the top of both inner walls of the flow guide groove (25), there are air guide openings (30) communicating with the inner cavity (17). At both corners of the top of the body (7), there are inclined grooves (18). On both inner walls of the flow guide groove (25), there are exhaust openings (21) communicating with the bottom of the inclined grooves (18). On both inner walls of the flow guide groove (25) near the exhaust openings (21), equally spaced inclined seats (28) are fixedly installed.

3. The heat treatment cooling equipment for stainless steel forgings used in nuclear power according to claim 2, characterized in that, On the inner walls of both inclined grooves (18), there are equally spaced heat dissipation grooves (20) communicating with the inside of the flow guide groove (25). On the inner walls of the heat dissipation grooves (20), heat dissipation fins (12) are fixedly installed.

4. A heat treatment cooling device for a stainless steel forging used in nuclear power according to claim 3, characterized in that, At the middle position of the top of the water storage tank (5) and the middle position of the bottom of the flow guide groove (25), there is a return port (26). Between the water storage tank (5) and the air-cooling unit (2), there is a condensate return component.

5. A heat treatment cooling device for a nuclear power stainless steel forging according to claim 4, characterized in that, The condensate reflux assembly includes an installation opening formed on one side of the water storage tank (5), and a liquid level sensor (6) is fixedly installed on the inner wall of the installation opening. A water pump (4) is fixedly installed on the top side of the support truss (1) close to the water storage tank (5). The water pump (4) is electrically connected to the liquid level sensor (6). A water suction pipe (15) inserted into the water storage tank (5) is fixedly installed at the water inlet end of the water pump (4). A reflux pipe (14) is fixedly installed between the water discharge end of the water pump (4) and the water inlet end of the air-cooled unit (2).

6. The heat treatment cooling equipment for stainless steel forgings used in nuclear power according to claim 5, wherein, The support assembly (8) includes a sealing cover plate (801) hermetically clamped to the inner wall of the inlet and outlet (22). Both ends of the outer wall of one side of the sealing cover plate (801) are fixedly provided with connecting plates (802). Two support rails (23) are fixedly installed on the inner wall of the inner cavity (17). Slide seats (804) slidably arranged in the support rails (23) are fixedly installed on one side of each of the connecting plates (802). The same limiting baffle (803) is fixedly installed at one end of the connecting plates (802). Two support shafts are rotatably connected between one side of the limiting baffle (803) and one side of the sealing cover plate (801). Support gears (805) are fixedly installed on both support shafts. The forging body (27) is placed on the two support gears (805). A rotating mechanism is arranged at one end of the two support shafts.

7. A heat treatment cooling device for stainless steel forgings used in nuclear power, characterized in that, The rotating mechanism includes transmission wheels fixedly installed at one end of the two support shafts, and a transmission belt (807) is connected between the two transmission wheels. A rotating motor (806) for driving the support shafts and the transmission belt (807) to rotate is fixedly installed on the other side of the sealing cover plate (801).

8. A heat treatment cooling device for a stainless steel forging used in nuclear power according to claim 7, characterized in that, The displacement assembly includes mounting seats (19) fixedly installed at one ends of the outer walls on both sides of the machine body (7). Hydraulic cylinders (10) are fixedly installed on one side of each of the mounting seats (19). A movable plate (9) is fixedly installed between the piston ends of the hydraulic cylinders (10) and one side of the sealing cover plate (801).

9. A heat treatment cooling device for a stainless steel forging used in nuclear power according to claim 8, characterized in that, A control box (3) is fixedly installed on the top side of the support truss (1). A controller is arranged in the control box (3). The controller is electrically connected to the air-cooled unit (2), the water pump (4), the liquid level sensor (6), and the rotating motor (806).

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