Casting device and process for stainless steel impeller for nuclear power

Abstract

The invention relates to the technical field of impeller casting, and discloses a nuclear power stainless steel impeller casting device and a process thereof.The nuclear power stainless steel impeller casting device comprises a casting unit, a cooling unit and a collecting unit, the casting unit comprises a mounting base, supporting legs are fixedly mounted on the periphery of the bottom of the mounting base, and four supporting rods are fixedly mounted above the mounting base; the four supporting rods are symmetrical in pairs, a top plate is installed above the four supporting rods, a jack is arranged in the middle of the bottom of the top plate, an upper die is arranged at the bottom of the jack, and a workbench is further fixedly installed above the installation base. According to the invention, when the rotating piece moves, the rotating piece can also drive a moving rod to vertically move under the assistance of a positioning piece, and when the moving rod vertically moves, the moving rod can drive an inclined block to vertically move, so that the inclined block can open a placing notch formed in the middle of a filter plate, and impurities accumulated on the inclined block can fall off; and at the moment, the falling impurities can just enter the circular fixing cylinder, so that the impurities are collected.

Description

Technical Field

[0001] The invention belongs to the technical field of impeller casting, and in particular relates to a stainless steel impeller casting device for nuclear power and a process thereof. Background Art

[0002] In today's energy landscape, nuclear power, as an efficient, low-carbon, clean energy source, occupies an increasingly critical position. It provides a stable power supply to many regions around the world and helps the social economy to flourish; and stainless steel impellers are the key moving parts that are indispensable in many core systems of nuclear power plants. In the main cooling circulation system of a nuclear power plant, the impeller is responsible for driving the high-speed circulation of the cooling medium to ensure that the nuclear reactor can stably maintain a suitable operating temperature range and avoid safety hazards caused by overheating. For example, in a pressurized water reactor nuclear power plant, a large amount of heat needs to be taken out of the reactor core. The stainless steel impeller drives the cooling water through the core, absorbs the heat and then transfers it to the secondary circuit system for power generation. In this process, the continuous and reliable operation of the impeller is the cornerstone of the entire power generation process.

[0003] However, when casting the existing stainless steel impeller, it is often cast through a mold. However, when casting the stainless steel impeller with the existing mold, it needs to be quickly cooled after casting. Considering the dimensional accuracy, if the impeller is not cooled quickly, it will shrink unevenly in the later stage of solidification. Due to the inconsistent cooling rates of different parts, the thermal stress generated will cause the impeller to warp and deform. The originally precisely designed blade shape and flow channel size are difficult to ensure accuracy, which directly affects the hydraulic performance of the impeller, greatly reduces the efficiency of the cooling circulation system, and cannot meet the strict requirements of nuclear power plants on parameters such as cooling medium flow and pressure. Most of the existing rapid cooling is cooled by water cooling circulation, but during water cooling, the water will contain impurities, etc. In the heated environment, the coolant will have the situation of impurities and other microorganisms spreading, resulting in more and more impurities, and more impurities are gathered together, which is easy to form large impurities, which are adsorbed on the inner wall of the pipe, causing the pipe to be blocked. Therefore, when the coolant is used for subsequent circulation cooling, the cooling effect is prone to deterioration.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] A stainless steel impeller casting device for nuclear power, comprising a casting unit, a cooling unit and a collecting unit, wherein the casting unit comprises a mounting base, support legs are fixedly installed around the bottom of the mounting base, four support rods are fixedly installed above the mounting base, the four support rods are symmetrical with each other, a top plate is installed above the four support rods, a jack is arranged in the middle of the bottom of the top plate, an upper mold is arranged at the bottom of the jack, a workbench is fixedly installed above the mounting base, a lower mold is arranged above the workbench, a cavity is arranged in the lower mold, and a A connecting pipe is arranged, the bottom of the connecting pipe is sealedly connected to a mounting cylinder, the bottom of the mounting cylinder is sealedly connected to a water outlet pipe, the other end of the water outlet pipe is connected to a water tank, the water tank is arranged in the inner cavity of the workbench, a water inlet pipe is arranged on the water tank, the other end of the water inlet pipe is connected to the lower mold cavity, a water pump is arranged on the water inlet pipe, a sliding door is arranged on the front side of the workbench, four notches arranged in a circumferential distribution are opened on the side wall of the mounting cylinder, a filter plate is arranged on the inner wall of the connecting pipe, the filter plate is in an inner cone shape, and a placement notch is opened in the middle of the filter plate;

[0007] The collecting unit comprises four collecting boxes, and the four collecting boxes are respectively slidably and sealedly arranged in the inner cavity of the slot;

[0008] The cooling unit comprises a driving assembly, and the driving assembly is used to drive four collecting boxes to move back and forth. The driving unit can also be used to collect stains in the water.

[0009] As a preferred embodiment of the present invention, the driving assembly includes a hydraulic cylinder, a rotating part is fixedly installed above the hydraulic cylinder, four connecting rods distributed in a circle are rotatably arranged on the side wall of the rotating part, a circular mounting ring is installed on the side wall opposite to the four connecting rods, a telescopic protective cylinder is sleeved on the outer side wall of the hydraulic cylinder, and the bottom of the telescopic protective cylinder is installed on the mounting cylinder.

[0010] As a preferred embodiment of the present invention, a moving rod is rotatably installed above the rotating member, a positioning member is slidably provided on the moving rod, and four positioning rods distributed in a circle are fixedly installed on the side wall of the positioning member, and opposite ends of the four positioning rods are respectively fixedly connected to the inner wall of the connecting pipe.

[0011] As a preferred embodiment of the present invention, four inclined blocks distributed in a circle are fixedly installed on the side wall above the moving rod, the four inclined blocks are sealed in the inner cavity of the placement slot, and guide blocks are provided on one side wall opposite to each other of the four inclined blocks, the four guide blocks are distributed in a circle, and the opposite ends of the four guide blocks are fixedly connected to the placement slot.

[0012] As a preferred embodiment of the present invention, four arc-shaped slide grooves distributed in a circle are provided above the circular mounting ring, movable sliders are slidably installed in the inner cavities of the four arc-shaped slide grooves, the four movable sliders are distributed in a circle, circular fixed cylinders are fixedly installed above the four movable sliders, telescopic rods are fixedly installed on the side walls of the four circular fixed cylinders, the four telescopic rods are symmetrical with each other, and the other ends of the four telescopic rods are respectively fixedly connected to the inner wall of the mounting cylinder.

[0013] As a preferred embodiment of the present invention, the bottom of the four circular fixed cylinders are all provided with semicircular notches, the inner cavities of the four circular fixed cylinders are all fixedly installed with semicircular inclined plates, and the four circular fixed cylinders and the inner cavities of the semicircular notches are provided with a material discharge sealing mechanism.

[0014] As a preferred embodiment of the present invention, the material unloading sealing mechanism includes four semicircular flip plates, and rotating rods are respectively fixedly installed at both ends of the four semicircular flip plates, and bearings are provided at opposite ends of each rotating rod, and each of the bearings is respectively arranged on the inner wall of the semicircular groove between two of them, and a torsion spring is provided on each rotating rod, and the two ends of each torsion spring are respectively arranged on the side wall opposite to the bearing and the semicircular flip plate.

[0015] As a preferred embodiment of the present invention, a guide groove is provided on the inner wall of the mounting tube, a guide slider is slidably installed in the inner cavity of the guide groove, one end of the guide slider away from the guide groove is fixedly connected to a connecting rod, and one end of the connecting rod away from the guide slider is fixedly connected to a circular mounting ring.

[0016] As a preferred embodiment of the present invention, the side wall of the telescopic protective tube is provided with four rectangular slots distributed in a circular pattern, and movable rods are provided in the inner cavities of the four rectangular slots. The four movable rods are symmetrical with each other, and one end of the four movable rods is movably connected to the hydraulic cylinder, and the other ends of the four movable rods are respectively movably connected to the collection boxes.

[0017] A stainless steel impeller casting process for nuclear power, the steps are as follows:

[0018] Step 1: First, the staff injects casting liquid into the lower mold. When the placement is completed, the staff controls the jack to operate through the controller, so that the jack can drive the upper mold to move, so that the upper mold and the lower mold are sealed with each other. At this time, the heating component can be controlled by the controller to heat it, thereby completing the molding of the stainless steel impeller;

[0019] Step 2: After the stainless steel impeller is formed, the staff controls the water pump through the controller so that the water pump can extract coolant from the water tank, so that the coolant can enter the lower mold cavity through the water inlet pipe, so as to cool the stainless steel impeller formed in the lower mold through the coolant. The coolant can be recycled through the connecting pipe, the installation cylinder, the water outlet pipe and the condenser, thereby ensuring the cooling efficiency of the stainless steel impeller after casting in the lower mold. When the cooling is completed, the water pump is stopped so that the coolant can return to the water tank;

[0020] Step three: When cooling is completed, the staff uses the controller to operate the cooling unit, so that the impurities trapped in the filter plate in the coolant can be cleaned, so that the dust can fall into the collection unit. At the same time, when the cooling unit runs to a certain extent, the collection box is located on the outer wall of the installation cylinder. At this time, the staff can deal with the dust stored in the collection box last time by opening the sliding door.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] According to the present invention, when the rotating part moves, it can also drive the moving rod to move vertically with the assistance of the positioning part. When the moving rod moves vertically, it can drive the tilting block to move vertically, so that the tilting block can open the placement slot opened in the middle of the filter plate, so that impurities accumulated on the tilting block can fall down, and the impurities that fall at this time will be able to just enter the circular fixed cylinder for collection. When the hydraulic cylinder moves in the opposite direction, the circular fixed cylinder and the tilting block will slowly reset, and the semicircular flip plate arranged at the circular fixed cylinder will be able to flip under the torque force of the torsion spring, so that the dust that falls into the circular fixed cylinder can fall from the semicircular slot to the reset collection box below for collection.

[0023] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In the attached picture:

[0025] Figure 1 It is a three-dimensional structural schematic diagram of a stainless steel impeller casting device for nuclear power;

[0026] Figure 2 It is a cross-sectional structural schematic diagram of a stainless steel impeller casting device for nuclear power;

[0027] Figure 3 This is a schematic diagram of the inner structure of a workbench of a stainless steel impeller casting device for nuclear power;

[0028] Figure 4 This is a schematic diagram of the mounting tube structure of a stainless steel impeller casting device for nuclear power;

[0029] Figure 5 This is a schematic diagram of the cross-sectional structure of the connecting pipes of a stainless steel impeller casting device for nuclear power;

[0030] Figure 6 It is a schematic diagram of the cross-sectional view and top view of the mounting cylinder of a stainless steel impeller casting device for nuclear power;

[0031] Figure 7 This is a schematic diagram of the local structure of the inner cavity of the mounting cylinder of a stainless steel impeller casting device for nuclear power;

[0032] Figure 8 It is a schematic diagram of a partial upward view of the inner cavity of a mounting tube of a stainless steel impeller casting device for nuclear power;

[0033] Fig. 9 This is a schematic diagram of the inner cavity of the mounting tube of a stainless steel impeller casting device for nuclear power, viewed from above;

[0034] Fig.10 This is a schematic diagram of the semicircular flip plate structure of a stainless steel impeller casting device for nuclear power.

[0035] In the figure:

[0036] 100, casting unit; 101, mounting base; 1011, supporting leg; 1012, supporting rod; 1013, top plate; 1014, jack; 1015, workbench; 1016, sliding door; 102, lower mold; 1021, upper mold; 103, water tank; 1031, water outlet pipe; 1032, water inlet pipe; 1033, water pump; 104, mounting cylinder; 1041, connecting pipe; 105, telescopic protective cylinder; 1051, rectangular notch; 106, filter plate;

[0037] 200, cooling unit; 201, hydraulic cylinder; 2011, rotating part; 2012, connecting rod; 2013, circular mounting ring; 2014, moving rod; 2015, positioning rod; 2016, positioning part; 2017, tilting block; 2018, guide block; 202, arc chute; 2021, moving slider; 2023, circular fixing cylinder; 2024, semicircular notch; 2025, semicircular tilting plate; 2026, telescopic rod; 203, semicircular flip plate; 2031, rotating rod; 2032, bearing; 2033, torsion spring; 204, guide chute; 2041, guide slider; 2042, connecting rod;

[0038] 300, collecting unit; 301, collecting box; 3011, movable rod. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0040] Embodiment 1:

[0041] like Figures 1 to 10As shown, a stainless steel impeller casting device for nuclear power includes a casting unit 100, a cooling unit 200 and a collecting unit 300. The casting unit 100 includes a mounting base 101. Support legs 1011 are fixedly installed around the bottom of the mounting base 101. Four support rods 1012 are fixedly installed above the mounting base 101. The four support rods 1012 are symmetrical to each other. A top plate 1013 is installed above the four support rods 1012. A jack 1014 is arranged in the middle of the bottom of the top plate 1013. An upper mold 1021 is arranged at the bottom of the jack 1014. A workbench 1015 is also fixedly installed above the mounting base 101. A lower mold 102 is arranged above the workbench 1015. A cavity is arranged in the lower mold 102, and a connecting pipe 1041 is arranged in the cavity. The bottom of the connecting pipe 1041 is sealed and connected to a mounting cylinder 104. The bottom of the mounting cylinder 104 is sealed and connected to an outlet A water pipe 1031, the other end of the water outlet pipe 1031 is connected to a water tank 103, the water tank 103 is arranged in the inner cavity of the workbench 1015, a water inlet pipe 1032 is arranged on the water tank 103, the other end of the water inlet pipe 1032 is connected to the cavity of the lower mold 102, a water pump 1033 is arranged on the water inlet pipe 1032, a sliding door 1016 is arranged on the front side of the workbench 1015, four notches arranged in a circular distribution are opened on the side wall of the mounting cylinder 104, a filter plate 106 is arranged on the inner wall of the connecting pipe 1041, the filter plate 106 is in an inner cone shape, and a placement notch is opened in the middle of the filter plate 106; the collecting unit 300 includes four collecting boxes 301, and the four collecting boxes 301 are respectively slidably sealed and arranged in the inner cavity of the notch; the cooling unit 200 includes a driving assembly, the driving assembly is used to drive the four collecting boxes 301 to reciprocate, and the driving unit can also be used to collect stains in the water. When the rotating member 2011 moves, it can also drive the moving rod 2014 to move vertically with the assistance of the positioning member 2016. When the moving rod 2014 moves vertically, it can drive the tilting block 2017 to move vertically, so that the tilting block 2017 can open the placement slot opened in the middle of the filter plate 106, so that the impurities accumulated on the tilting block 2017 can fall down, and the impurities that fall at this time will be able to just enter the circular fixed cylinder 2023 for collection. When the hydraulic cylinder 201 moves in the opposite direction, the above-mentioned circular fixed cylinder 2023 and the tilting block 2017 will slowly reset, and at this time the semicircular flip plate 203 set at the circular fixed cylinder 2023 will be able to flip the semicircular flip plate 203 under the torque force of the torsion spring 2033, so that the dust falling into the circular fixed cylinder 2023 can fall from the semicircular slot 2024 to the collection box 301 that has been reset below for collection.

[0042] like Figures 7 to 9As shown, in a specific embodiment, the driving assembly includes a hydraulic cylinder 201, a rotating member 2011 is fixedly installed above the hydraulic cylinder 201, four connecting rods 2012 arranged in a circumferential distribution are rotatably arranged on the side wall of the rotating member 2011, a circular mounting ring 2013 is installed on the side wall opposite to the four connecting rods 2012, a telescopic protective cylinder 105 is sleeved on the outer side wall of the hydraulic cylinder 201, and the bottom of the telescopic protective cylinder 105 is installed on the mounting cylinder 104. In this configuration, the installation position and components of the driving assembly are determined.

[0043] like Figures 4 to 9 As shown, further, a moving rod 2014 is rotatably mounted above the rotating member 2011, a positioning member 2016 is slidably mounted on the moving rod 2014, and four positioning rods 2015 arranged in a circumferential distribution are fixedly mounted on the side wall of the positioning member 2016, and opposite ends of the four positioning rods 2015 are respectively fixedly connected to the inner wall of the connecting pipe 1041. In this arrangement, the installation position of the moving rod 2014 is determined, ensuring that the moving rod 2014 can move vertically up and down.

[0044] like Figures 4 to 9 As shown, further, four tilting blocks 2017 arranged in a circumferential distribution are fixedly installed on the side wall above the moving rod 2014, and the four tilting blocks 2017 are sealed and arranged in the inner cavity of the placement slot, and the side walls of the four tilting blocks 2017 opposite to each other are each provided with a guide block 2018, and the four guide blocks 2018 are arranged in a circumferential distribution, and the opposite ends of the four guide blocks 2018 are fixedly connected to the placement slot. In this configuration, the installation position of the tilting block 2017 is determined, ensuring that the tilting block 2017 can move vertically with the moving rod 2014.

[0045] like Figures 4 to 9 As shown, further, four arc-shaped slide grooves 202 arranged in a circumferential distribution are provided above the circular mounting ring 2013, and movable sliders 2021 are slidably installed in the inner cavities of the four arc-shaped slide grooves 202, and the four movable sliders 2021 are arranged in a circumferential distribution, and a circular fixed cylinder 2023 is fixedly installed above the four movable sliders 2021, and telescopic rods 2026 are fixedly installed on the side walls of the four circular fixed cylinders 2023, and the four telescopic rods 2026 are symmetrical to each other, and the other ends of the four telescopic rods 2026 are respectively fixedly connected to the inner wall of the mounting cylinder 104. In this configuration, it is ensured that the circular fixed cylinder 2023 can move horizontally.

[0046] like Figures 4 to 9 As shown, further, the bottom of the four circular fixed cylinders 2023 are all provided with semicircular notches 2024, the inner cavities of the four circular fixed cylinders 2023 are all fixedly installed with semicircular inclined plates 2025, and the four circular fixed cylinders 2023 and the inner cavities of the semicircular notches 2024 are provided with material unloading sealing mechanisms. In this configuration, the specific components of the circular fixed cylinders 2023 are determined.

[0047] like Figures 4 to 9 As shown, further, the material unloading sealing mechanism includes four semicircular flip plates 203, and the two ends of the four semicircular flip plates 203 are respectively fixedly mounted with rotating rods 2031, and the opposite ends of each rotating rod 2031 are provided with bearings 2032, and each bearing 2032 is respectively arranged on the inner wall of the semicircular notch 2024 between two, and each rotating rod 2031 is provided with a torsion spring 2033, and the two ends of each torsion spring 2033 are respectively arranged on the side wall opposite to the bearing 2032 and the semicircular flip plate 203. In this arrangement, it is ensured that the semicircular flip plate 203 can be flipped and reset.

[0048] Embodiment 2:

[0049] The difference between the above embodiment and this embodiment is that: Figures 6 to 9 As shown, a stainless steel impeller casting device for nuclear power, the inner wall of the mounting cylinder 104 is provided with a guide slot 204, the inner cavity of the guide slot 204 is slidably mounted with a guide slider 2041, the end of the guide slider 2041 away from the guide slot 204 is fixedly connected with a connecting rod 2042, and the end of the connecting rod 2042 away from the guide slider 2041 is fixedly connected to a circular mounting ring 2013. In this arrangement, it is ensured that the circular mounting ring 2013 can also rotate when moving vertically.

[0050] like Figures 7 to 9 As shown, in a specific embodiment, the side wall of the telescopic protective cylinder 105 is provided with four rectangular notches 1051 distributed in a circumference, and the inner cavities of the four rectangular notches 1051 are all provided with movable rods 3011, and the four movable rods 3011 are symmetrical to each other, one end of the four movable rods 3011 is movably connected to the hydraulic cylinder 201, and the other ends of the four movable rods 3011 are respectively movably connected to the collection box 301. In this configuration, the installation position of the movable rod 3011 is determined, ensuring that the collection box 301 can move.

[0051] Embodiment 3:

[0052] The present invention also discloses a stainless steel impeller casting process for nuclear power, the steps of which are as follows:

[0053] Step 1: First, the staff injects casting liquid into the lower mold 102. When the lower mold 102 is placed, the staff controls the jack 1014 to operate through the controller, so that the jack 1014 can drive the upper mold 1021 to move, so that the upper mold 1021 and the lower mold 102 are sealed with each other. At this time, the heating component can be controlled by the controller to heat it, thereby completing the molding of the stainless steel impeller;

[0054] Step 2: After the stainless steel impeller is formed, the staff controls the water pump 1033 to run through the controller, so that the water pump 1033 can extract cooling liquid from the water tank 103, so that the cooling liquid can enter the cavity of the lower mold 102 through the water inlet pipe 1032, so that the stainless steel impeller formed in the lower mold 102 is cooled by the cooling liquid, and the cooling liquid can be circulated through the connecting pipe 1041, the installation cylinder 104, the water outlet pipe 1031 and the condenser, so as to ensure the cooling efficiency of the stainless steel impeller cast in the lower mold 102. When the cooling is completed, the water pump 1033 is stopped, so that the cooling liquid can return to the water tank 103;

[0055] Step three: When cooling is completed, the staff uses the controller to operate the cooling unit 200, so that the impurities retained in the filter plate 106 in the coolant can be cleaned, so that the dust can fall into the collection unit 300. At the same time, when the cooling unit 200 runs to a certain extent, the collection box 301 is located on the outer wall of the installation tube 104. At this time, the staff can deal with the dust stored in the collection box 301 last time by opening the sliding door 1016.

[0056] The implementation principle of a stainless steel impeller casting device for nuclear power and its process of this embodiment is as follows:

[0057] First, the staff injects casting liquid into the lower mold 102. When the lower mold 102 is placed, the staff controls the jack 1014 through the controller, so that the jack 1014 can drive the upper mold 1021 to move, so that the upper mold 1021 and the lower mold 102 are sealed with each other. After a period of rest, the stainless steel impeller is formed.

[0058] After the stainless steel impeller is formed, the staff controls the water pump 1033 to run through the controller, so that the water pump 1033 can extract cooling liquid from the water tank 103, so that the cooling liquid can enter the cavity of the lower mold 102 through the water inlet pipe 1032, so that the stainless steel impeller formed in the lower mold 102 is cooled by the cooling liquid, and the cooling liquid can be circulated through the connecting pipe 1041, the installation cylinder 104 and the water outlet pipe 1031 and the condenser, so as to ensure the cooling efficiency of the stainless steel impeller cast in the lower mold 102. When the cooling is completed, the water pump 1033 is stopped, so that the cooling liquid can return to the water tank 103;

[0059] At the same time, when the cooling is completed, the staff controls the hydraulic cylinder 201 to operate through the controller. When the hydraulic cylinder 201 operates, it can drive the rotating member 2011 to move. When the rotating member 2011 moves, it can drive the circular mounting ring 2013 to move through the connecting rod 2012, because the circular mounting ring 2013 is connected to the guide slider 2041 provided on the inner wall of the mounting cylinder 104 through the connecting rod 2042, and the guide slider 2041 is slidably provided on the guide slide groove 204, so it can drive the circular mounting ring 2013 to rotate;

[0060] When the circular mounting ring 2013 rotates, the circular fixing cylinder 2023 provided on the circular mounting ring 2013 can be limited by the telescopic rod 2026, so that the circular fixing cylinder 2023 can be horizontally moved with the assistance of the moving slider 2021 and the arc-shaped slide groove 202 provided on the circular mounting ring 2013. When the circular fixing cylinder 2023 moves horizontally, it can drive the semicircular flip plate 203 to move, so that the semicircular flip plate 203 can contact the outer wall of the circular mounting ring 2013, so that the semicircular flip plate 203 can be slowly closed with the assistance of the rotating rod 2031 and the bearing 2032, so that the semicircular notch 2024 opened at the circular fixing cylinder 2023 can be blocked;

[0061] At the same time, when the rotating member 2011 moves, it can also drive the moving rod 2014 to move vertically with the assistance of the positioning member 2016. When the moving rod 2014 moves vertically, it can drive the tilting block 2017 to move vertically, so that the tilting block 2017 can open the placement slot opened in the middle of the filter plate 106, so that the impurities accumulated on the tilting block 2017 can fall down, and the impurities that fall down can just enter the circular fixed cylinder 2023 for collection;

[0062] At the same time, when the hydraulic cylinder 201 moves, it can also drive the movable rod 3011 to move, so that the collection box 301 can be driven to move horizontally back and forth through the movable rod 3011. When the collection box 301 is located on the outer wall of the installation cylinder 104, the staff can handle the dust in the collection box 301 by opening the sliding door 1016 provided on the workbench 1015.

[0063] When the hydraulic cylinder 201 moves in the opposite direction, the circular fixed cylinder 2023 and the tilting block 2017 will slowly reset, and the semicircular flip plate 203 provided at the circular fixed cylinder 2023 will be able to flip under the torque force of the torsion spring 2033, so that the dust falling into the circular fixed cylinder 2023 can fall from the semicircular groove 2024 to the collection box 301 below which has been reset, so as to be collected.

Claims

1. A stainless steel impeller casting device for nuclear power, comprising a casting unit (100), a cooling unit (200) and a collecting unit (300), characterized in that: The casting unit (100) comprises a mounting base (101), support legs (1011) are fixedly mounted around the bottom of the mounting base (101), four support rods (1012) are fixedly mounted above the mounting base (101), the four support rods (1012) are symmetrical to each other, a top plate (1013) is mounted above the four support rods (1012), a jack (1014) is arranged in the middle of the bottom of the top plate (1013), an upper mold (1021) is arranged at the bottom of the jack (1014), a workbench (1015) is also fixedly mounted above the mounting base (101), a lower mold (102) is arranged above the workbench (1015), a cavity is arranged in the lower mold (102), a connecting pipe (1041) is arranged in the cavity, and the bottom of the connecting pipe (1041) A mounting cylinder (104) is sealed and connected, a water outlet pipe (1031) is sealed and connected to the bottom of the mounting cylinder (104), the other end of the water outlet pipe (1031) is connected to a water tank (103), the water tank (103) is arranged in the inner cavity of the workbench (1015), a water inlet pipe (1032) is arranged on the water tank (103), the other end of the water inlet pipe (1032) is connected to the cavity of the lower mold (102), a water pump (1033) is arranged on the water inlet pipe (1032), a sliding door (1016) is arranged on the front side of the workbench (1015), four notches arranged in a circumferential distribution are opened on the side wall of the mounting cylinder (104), a filter plate (106) is arranged on the inner wall of the connecting pipe (1041), the filter plate (106) is in an inner cone shape, and a placement notch is opened in the middle of the filter plate (106); The collection unit (300) comprises four collection boxes (301), and the four collection boxes (301) are respectively slidably sealed and arranged in the inner cavity of the slot; The cooling unit (200) comprises a driving component, the driving component being used to drive four collecting boxes (301) to move back and forth, and the driving unit can also be used to collect stains in water.

2. A stainless steel impeller casting device for nuclear power according to claim 1, characterized in that: The driving assembly comprises a hydraulic cylinder (201), a rotating member (2011) is fixedly mounted above the hydraulic cylinder (201), four connecting rods (2012) arranged in a circumferential distribution are rotatably mounted on the side wall of the rotating member (2011), a circular mounting ring (2013) is mounted on the side wall opposite to the four connecting rods (2012), a telescopic protective cylinder (105) is sleeved on the outer side wall of the hydraulic cylinder (201), and the bottom of the telescopic protective cylinder (105) is mounted on the mounting cylinder (104).

3. A stainless steel impeller casting device for nuclear power according to claim 2, characterized in that: A moving rod (2014) is rotatably mounted above the rotating member (2011), a positioning member (2016) is slidably mounted on the moving rod (2014), four positioning rods (2015) distributed in a circle are fixedly mounted on the side wall of the positioning member (2016), and opposite ends of the four positioning rods (2015) are respectively fixedly connected to the inner wall of the connecting pipe (1041).

4. A stainless steel impeller casting device for nuclear power according to claim 3, characterized in that: Four inclined blocks (2017) arranged in a circumferential distribution are fixedly installed on the side wall above the moving rod (2014); the four inclined blocks (2017) are sealed and arranged in the inner cavity of the placement slot; guide blocks (2018) are arranged on one side wall opposite to each other of the four inclined blocks (2017); the four guide blocks (2018) are distributed in a circumferential distribution; and opposite ends of the four guide blocks (2018) are fixedly connected to the placement slot.

5. A stainless steel impeller casting device for nuclear power according to claim 2, characterized in that: Four arc-shaped slide grooves (202) are arranged in a circumferential distribution on the top of the circular mounting ring (2013); movable sliders (2021) are slidably installed in the inner cavities of the four arc-shaped slide grooves (202); the four movable sliders (2021) are arranged in a circumferential distribution; a circular fixed cylinder (2023) is fixedly installed on the top of the four movable sliders (2021); telescopic rods (2026) are fixedly installed on the side walls of the four circular fixed cylinders (2023); the four telescopic rods (2026) are symmetrical with each other; and the other ends of the four telescopic rods (2026) are respectively fixedly connected to the inner wall of the mounting cylinder (104).

6. A stainless steel impeller casting device for nuclear power according to claim 5, characterized in that: The bottoms of the four circular fixed cylinders (2023) are all provided with semicircular notches (2024), the inner cavities of the four circular fixed cylinders (2023) are all fixedly provided with semicircular inclined plates (2025), and the inner cavities of the four circular fixed cylinders (2023) and the semicircular notches (2024) are provided with material discharge sealing mechanisms.

7. A stainless steel impeller casting device for nuclear power according to claim 6, characterized in that: The material unloading sealing mechanism comprises four semicircular flip plates (203), and rotating rods (2031) are respectively fixedly installed at both ends of the four semicircular flip plates (203), and each of the rotating rods (2031) is provided with a bearing (2032) at one end opposite to the other, and each of the bearings (2032) is respectively arranged on the inner wall of the semicircular notch (2024) between two of them, and each of the rotating rods (2031) is provided with a torsion spring (2033), and the two ends of each torsion spring (2033) are respectively arranged on a side wall opposite to the bearing (2032) and the semicircular flip plate (203).

8. A stainless steel impeller casting device for nuclear power according to claim 1, characterized in that: A guide groove (204) is provided on the inner wall of the installation cylinder (104), a guide slider (2041) is slidably installed in the inner cavity of the guide groove (204), one end of the guide slider (2041) away from the guide groove (204) is fixedly connected to a connecting rod (2042), and one end of the connecting rod (2042) away from the guide slider (2041) is fixedly connected to the circular installation ring (2013).

9. A stainless steel impeller casting device for nuclear power according to claim 1, characterized in that: The side wall of the telescopic protective tube (105) is provided with four rectangular notches (1051) distributed in a circumferential manner, and the inner cavities of the four rectangular notches (1051) are all provided with movable rods (3011). The four movable rods (3011) are symmetrical with each other, and one end of the four movable rods (3011) is movably connected to the hydraulic cylinder (201), and the other ends of the four movable rods (3011) are respectively movably connected to the collection box (301).

10. A stainless steel impeller casting process for nuclear power, characterized in that: A stainless steel impeller casting device for nuclear power used in any one of claims 1 to 9, wherein the stainless steel impeller casting process for nuclear power used comprises the following steps: Step 1: First, the staff injects casting liquid into the lower mold (102). When the lower mold (102) is placed, the staff controls the jack (1014) to operate through the controller, so that the jack (1014) can drive the upper mold (1021) to move, so that the upper mold (1021) and the lower mold (102) are sealed with each other. At this time, the heating component can be controlled by the controller to heat it, thereby completing the molding of the stainless steel impeller; Step 2: After the stainless steel impeller is formed, the staff controls the water pump (1033) to operate through the controller, so that the water pump (1033) can extract cooling liquid from the water tank (103), so that the cooling liquid can enter the cavity of the lower mold (102) through the water inlet pipe (1032), so that the stainless steel impeller formed in the lower mold (102) is cooled by the cooling liquid, and the cooling liquid can be circulated through the connecting pipe (1041), the installation cylinder (104) and the water outlet pipe (1031) and the condenser, so as to ensure the cooling efficiency of the stainless steel impeller cast in the lower mold (102). When the cooling is completed, the water pump (1033) is stopped, so that the cooling liquid can return to the water tank (103); Step three: When cooling is completed, the staff uses the controller to operate the cooling unit (200), so that the impurities retained in the filter plate (106) in the coolant can be cleaned, so that the dust can fall into the collection unit (300). At the same time, when the cooling unit (200) runs to a certain extent, the collection box (301) is located on the outer wall of the installation cylinder (104). At this time, the staff can open the sliding door (1016) to deal with the dust stored in the collection box (301) last time.

Images