Outer ring quenching equipment with waste heat utilization function for three-proofing air distribution pipe

Abstract

The invention discloses outer ring quenching equipment with a waste heat utilization function for a three-proofing air distribution pipe, and relates to the technical field of steel ring quenching, the quenching equipment is used for quenching a steel ring, the quenching equipment comprises a fixing mechanism, a quenching furnace, a crack detection mechanism, a steel supplementing mechanism and a waste heat recovery mechanism, the fixing mechanism is connected with the quenching furnace, and the crack detection mechanism is connected with the waste heat recovery mechanism. The fixing mechanism is connected with the steel supplementing mechanism, the quenching furnace is connected with the crack detection mechanism, the quenching furnace is connected with the steel supplementing mechanism, the crack detection mechanism is connected with the steel supplementing mechanism, the quenching furnace is connected with the waste heat recovery mechanism, the fixing mechanism comprises a mounting bottom plate, the mounting bottom plate is connected with the quenching furnace, the quenching furnace is fixedly connected with the mounting bottom plate, and a quenching cavity is formed in the quenching furnace. The steel ring is arranged in the quenching cavity, and the quenching cavity is connected with the waste heat recovery mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of steel ring quenching, in particular to an outer ring quenching device for a triple-proof cloth air duct with a waste heat utilization function. Background Art

[0002] In the triple-proof fabric air duct, the outer steel ring is indispensable. It can not only provide necessary support for it under high pressure conditions, prevent the air duct from deformation or rupture due to high pressure, improve the stability of the structure, and ensure the normal operation of the air duct, but also provide additional fixing points to facilitate workers to perform lifting, fixing and other operations.

[0003] Before the steel ring is put into use, it needs to be quenched. Through the quenching operation, the rigidity and hardness of the steel ring can be greatly improved, so that it can have a longer life after being put into use. However, at present, the quenching is basically carried out directly, and then it is left to stand at a constant temperature and then cooled. However, the steel ring may have problems in the production process. During quenching, cracks will appear on the surface of the steel ring from the inside, which will have a great impact on the steel ring and reduce its service life. Summary of the invention

[0004] The object of the present invention is to provide an outer ring quenching device for triple-proof cloth air duct with waste heat utilization function to solve the problems raised in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The quenching equipment quenches the steel ring, and the quenching equipment includes a fixing mechanism, a quenching furnace, a crack detection mechanism, a steel filling mechanism and a waste heat recovery mechanism. The fixing mechanism is connected to the quenching furnace, the fixing mechanism is connected to the steel filling mechanism, the quenching furnace is connected to the crack detection mechanism, the quenching furnace is connected to the steel filling mechanism, the crack detection mechanism is connected to the steel filling mechanism, and the quenching furnace is connected to the waste heat recovery mechanism;

[0007] The fixing mechanism includes a mounting base plate, and the mounting base plate is connected to the quenching furnace;

[0008] The quenching furnace is firmly connected to the mounting base plate, a quenching chamber is provided in the quenching furnace, a steel ring is placed in the quenching chamber, and the quenching chamber is connected to the waste heat recovery mechanism;

[0009] The waste heat recovery mechanism includes a heat exchange tube and a test chamber. The test chamber is provided with a test cavity. The heat exchange tube is connected to the test chamber. One end of the heat exchange tube is connected to the quenching cavity. The end of the heat exchange tube away from the quenching cavity is connected to the test cavity.

[0010] In the quenching device, the fixing mechanism is used to provide the foundation of the entire device and support the steel ring, the quenching furnace provides a place for quenching the steel ring, and the crack detection mechanism is used to detect whether cracks appear in the steel ring during the quenching process. Since the steel ring itself may have internal problems during the manufacturing process, and the purpose of the initial quenching is to make the internal problems of the steel ring appear, they will gradually appear on the surface of the steel ring in the form of cracks during the quenching process. By detecting the position and depth of the cracks, the steel filling mechanism is used to supplement the cracks with steel powder, and the steel powder is melted and attached to the cracks by heating, and then the main quenching is carried out. After the main quenching is completed, the quenching furnace stops heating, and the steel ring stays in it for a period of time. The waste heat recovery mechanism is turned on to transfer the heat in the quenching furnace to the unquenched steel ring to preheat it.

[0011] The quenching furnace is placed on the installation base plate, and the waste heat recovery mechanism transfers the hot air in the quenching chamber to the chamber to be tested through the heat exchange pipe to realize the utilization of waste heat.

[0012] Furthermore, the crack detection mechanism includes a radio wave transmitter and a moving device, the crack detection mechanism is connected to the quenching furnace, the crack detection mechanism is connected to the quenching chamber, the radio wave transmitter is placed in the quenching chamber, the moving device is connected to the radio wave transmitter, the moving device is connected to the quenching chamber, the moving device includes a moving ring and a driving motor, the driving motor is tightly connected to the outer wall of the quenching chamber, a circular mounting hole is provided in the wall of the quenching chamber, a through hole is provided on the outer wall of the quenching chamber, the quenching chamber through hole and the circular mounting hole are connected, the moving ring is placed in the circular mounting hole, the moving ring and the circular mounting hole are rotatably connected, the output end of the driving motor is tightly connected to the moving ring through the through hole, there is a circular gap with the same center as the circular mounting hole between the inner wall of the quenching chamber and the circular mounting hole, a fixing rod is tightly connected to the moving ring, the distance from the center of the moving ring to the fixing rod is the radius of the steel ring, the radio wave transmitter is tightly connected to the moving ring through the fixing rod, and the fixing rod connected to the radio wave transmitter is connected to the steel filling mechanism.

[0013] In the crack detection mechanism, the device is used to detect whether cracks occur in the steel ring during the initial quenching. The detection is performed through a radio wave transmitter. The radio wave transmitter transmits radio waves in the direction of the steel ring and returns after contacting the steel ring. If there is no crack at the place where the steel ring is detected, it will return in a normal time; if there is a crack, it will take a long time for the radio wave to contact the steel ring and then return. In this process, a specific manifestation is performed through a magnetic powder detection device, and then steel powder is added to the cracks through a steel filling mechanism, and then the steel powder is melted at high temperature and fused with the tempered steel. After completion, the drive motor is started and the radio wave transmitter moves. Since the distance from the center of the moving ring to the fixed rod is the radius of the steel ring, the transmitting end of the radio wave transmitter is always facing the steel ring entity during movement, and the detection operation is repeated.

[0014] Furthermore, the installation base plate is connected to the crack detection mechanism, and the crack detection mechanism also includes a magnetic powder detection device, which is connected to the installation base plate. The magnetic powder detection device includes detection magnetic powder, a circulation ring pipe, a circulation fan and an electrode plate. The circulation ring pipe is placed on the installation base plate, and openings are symmetrically provided on both sides of the tube of the circulation ring pipe. There are two electrode plates, and the two electrode plates are tightly connected to the installation base plate. The two electrode plates are tightly connected to the openings of the circulation ring pipe respectively, and the two electrode plates are parallel to each other. A magnetic powder circulation chamber is provided in the circulation ring pipe, and the circulation fan is placed on the installation base plate. The circulation fan is connected to the circulation ring pipe, and the air outlet of the circulation fan is connected to the circulation chamber. The detection magnetic powder is placed in the circulation chamber. The magnetic powder detection device also includes an inlet flow valve and an adjustable filter screen. The inlet flow valve and the circulation ring The invention relates to a method for pushing a hydraulic cylinder to a plurality of filter screens, wherein the plurality of filter screens are connected to each other by a plurality of pipes, the inlet flow valve is placed at one end where the circulation chamber and the electrode plate are connected, the adjustable filter screen is placed in the circulation chamber, the adjustable filter screen is connected to the inner wall of the circulation chamber, the adjustable filter screen comprises a first layer of filter screen, a second layer of filter screen and a pushing hydraulic cylinder, the first layer of filter screen is firmly connected to the inner wall of the circulation chamber, the second layer of filter screen is rotatably connected to the inner wall of the circulation chamber, the first layer of filter screen and the second layer of filter screen have several sub-nets, the first layer of filter screen and the second layer of filter screen overlap in the initial state, several sub-nets of the second layer of filter screen are connected by a fixed ring, the inner wall of the circulation chamber and the fixed ring are slidably connected, a movable groove is provided at the bottom where the circulation chamber and the fixed ring are connected, a push rod is hinged on the fixed ring of the second layer of filter screen, the push rod and the movable groove are slidably connected, the fixed end of the pushing hydraulic cylinder is firmly connected through a baffle and an installation base plate, and the output end of the pushing hydraulic cylinder is firmly connected to the push rod.

[0015] In the crack detection mechanism, this mechanism is used to detect cracks in the steel ring after the initial quenching is completed. The mechanism has two groups, which detect both sides of the steel ring at the same time. Since the steel ring itself may have internal problems during the manufacturing process, and the purpose of the initial quenching is to make the problems of the steel ring appear through the cracks, the steel ring is detected by the radio wave transmitter. First, the circulation fan is started, and the inlet flow valve is also opened. The adjustable filter is in the initial state. After the circulation fan is started, the detection magnetic powder flows at a uniform speed in the circulation chamber. When the radio wave transmitter sends out radio waves, the inlet flow valve is closed, so the detection magnetic powder will be intercepted when it arrives here from the other end. Electrode plates are provided on both sides of this section. The electrode plates and the quenching furnace are connected by wires. The detection magnetic powder will accumulate here continuously, causing the current to increase. If no cracks are detected, the radio waves will return at normal time and the receiver will receive the magnetic powder. After that, the inlet flow valve opens, and the detection magnetic powder continues to move under the action of the circulating fan; if a crack is detected, due to the existence of cracks, the speed at which the radio wave returns is slower than normal. At this time, the detection magnetic powder accumulates more, and the current in the circuit where the electrode plate is located becomes larger, exceeding the circuit when there is no crack. The inlet flow valve opens, and the adjustable filter is unfolded. The detection magnetic powder cannot pass through the filter, and only air can pass through. The circulating fan is started, so that the detection magnetic powder enters the circulation chamber again, but is intercepted by the adjustable filter and can no longer reach the electrode plate. There is only air in the electrode plate, and the circuit connected to the electrode plate and the quenching furnace is powered off, and the quenching furnace is powered off. There is a crack in the detected steel ring, and the subsequent steel filling mechanism performs steel filling operation, and then repeats the detection operation at other places of the steel ring. When and only when the two sets of detection mechanisms cannot detect cracks, the quenching furnace is restarted for the main quenching.

[0016] Furthermore, the steel replenishing mechanism includes a steel powder replenishing device, which is connected to the fixing mechanism and the mounting base plate. The steel powder replenishing device includes a steel powder storage tank, a replenishing pipe and a replenishing nozzle. The steel powder storage tank and the mounting base plate are tightly connected. The steel powder storage tank is connected with a replenishing pipe. The end of the replenishing pipe away from the steel powder storage tank is connected to the replenishing nozzle. The replenishing nozzle is placed in the quenching chamber. The replenishing pipe passes through the wall of the quenching chamber. The replenishing pipe is tightly connected to the fixing rod connected to the radio wave transmitter. The replenishing nozzle faces directly in front of the radio wave transmitter that emits radio waves. The replenishing pipe and the replenishing nozzle are both metals with a higher melting point than the steel powder.

[0017] In the steel filling mechanism, the steel powder filling device is used to fill the cracks with steel powder. The steel powder storage tank is mixed with steel powder and combustion-supporting powder, and the two are evenly mixed. Because when filling the steel powder at the cracks of the steel ring, it is necessary to heat the steel powder to melt it on the steel ring. The combustion-supporting powder can accelerate the melting of the steel powder. The mixed steel powder and combustion-supporting powder are driven by the pump body, pumped from the steel powder storage tank to the filling pipe, and then sprayed out by the filling nozzle. The direction of the filling nozzle is the position of the steel ring where the radio wave transmitter emits the radio wave to reach. Therefore, the steel powder can be sprayed directly on the cracks. The filling pipe and the filling nozzle are made of metal with a melting point higher than the melting point of the steel powder. Therefore, they will not be greatly affected by the temperature when working in the quenching chamber.

[0018] Furthermore, the steel repairing mechanism also includes a laser, the laser emission end is directed toward the steel ring where the radio wave of the radio wave transmitter acts, the laser and the radio wave transmitter are connected with a fixed rod, and the steel ring contacts the steel powder and partially overlaps with the laser beam.

[0019] In the steel repair mechanism, the steel powder replenishing device is used to add steel powder to the cracks, so that the laser performs laser heating on the cracks of the steel ring. The laser beam emitted by the laser to the steel ring and the steel powder sprayed by the replenishing nozzle are in the same position on the steel ring, both of which are at the place where the radio wave of the radio wave transmitter contacts the steel ring. When repairing steel, start the laser first, and then the replenishing nozzle sprays steel powder and combustion-supporting powder to the cracks of the steel ring. The steel powder melts onto the steel ring under the action of the laser beam and the combustion-supporting powder to repair the cracks. After completion, the steel powder replenishing device stops first, and then the laser stops working.

[0020] Furthermore, the fixing mechanism also includes a clamping ring, which is connected to the quenching furnace, the clamping ring is placed in the quenching chamber, and the clamping ring and the side wall of the quenching chamber are fastened together by a support rod.

[0021] In the fixing mechanism, the clamping ring is used to clamp the steel ring so that the steel ring is in a suspended upright state in the quenching furnace. In this way, the steel ring can be quenched evenly in the quenching chamber. At the same time, the crack detection of the steel ring can be carried out on both sides at the same time to improve efficiency.

[0022] Furthermore, the waste heat recovery mechanism also includes a heat exchange fan, which is placed in the heat exchange tube and driven by a servo motor.

[0023] In the waste heat recovery mechanism, this mechanism is used after the quenching of the quenching furnace is completed. When the steel ring is stationary in the quenching chamber, it absorbs part of the heat in the quenching chamber, and transfers part of the heat to the chamber to be tested through the heat exchange tube. The heat exchange tubes are respectively connected to the top of the quenching chamber and the bottom of the chamber to be tested. Because the density of hot air is smaller than that of normal air, in a device, the hot air will be above the device, and the cold air will be placed below the device. The heat exchange tube is connected to the top of the quenching chamber, which can better absorb the hot air. At the same time, the heat exchange tube is connected to the bottom of the chamber to be tested. After the hot air enters the chamber to be tested, it will move from the bottom of the chamber to be tested to the top, which can be preheated more fully. At the same time, the heat exchange fan is placed in the heat exchange tube to accelerate the transfer of heat.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows: after the present invention is started, the steel ring is fixed inside the quenching chamber by the clamping ring, the quenching furnace is started normally, the steel ring is subjected to the initial quenching, and the circulating fan is started at the same time, so that the detection magnetic powder in the circulating chamber moves along the circulating chamber at a constant speed. After quenching for a period of time, the radio wave transmitter transmits radio waves to a place on the steel ring. When the radio waves are emitted, the inlet flow valve is closed, so the detection magnetic powder will be intercepted when it arrives here from the other end. Electrode plates are provided on both sides of this section, and the electrode plates and the quenching furnace are connected by wires. The detection magnetic powder will continuously accumulate here, so that the current increases. If no cracks are detected, the radio waves return in normal time. After receiving them, the inlet flow valve is opened, and the detection magnetic powder continues to move under the action of the circulating fan; if cracks are detected, due to the existence of cracks, the speed at which the radio waves return is slower than the normal speed. At this time, the detection magnetic powder accumulates more, and the circuit where the electrode plates are located is electrically connected. The flow rate is large, exceeding the circuit when there is no crack. The inlet flow valve is opened, and the adjustable filter is unfolded. The detection magnetic powder cannot pass through the filter, and only air can pass through. The circulating fan is started, allowing the detection magnetic powder to enter the circulation chamber again, but it is intercepted by the adjustable filter and cannot reach the electrode plate again. There is only air in the electrode plate. The circuit connected to the electrode plate and the quenching furnace is powered off, and the quenching furnace is powered off. There is a crack in the steel ring just detected. Steel powder is added to the crack through the steel filling mechanism. There is also a combustion aid in the steel powder to help the steel powder and the steel ring to better fuse. After completion, the drive motor is started and the radio wave transmitter is moved. Then the above operation is repeated. After there are no cracks, the main quenching is carried out, and the quenching furnace is started to quench the steel ring. After quenching is completed, the quenching furnace is powered off, but the steel ring is not taken out for the time being. It is left to stand for a while. At the same time, the waste heat recovery mechanism is started to transfer the heat in the quenching furnace to the cavity to be tested to preheat the steel ring to be quenched. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 for Figure 1 Enlarged view of part A;

[0027] Figure 3 A top view of the present invention;

[0028] Figure 4 It is a front view of the present invention;

[0029] Figure 5 is a transverse cross-sectional view of the present invention;

[0030] Figure 6 It is a longitudinal cross-sectional view of the quenching furnace of the present invention;

[0031] Figure 7 This is a schematic diagram of the initial state of the adjustable filter screen of the present invention;

[0032] Figure 8 This is a schematic diagram of the start-up state of the adjustable filter of the present invention.

[0033] In the figure: 1. steel ring; 2. fixing mechanism; 21. mounting base plate; 22. clamping ring; 3. quenching furnace; 31. quenching chamber; 4. crack detection mechanism; 41. radio wave transmitter; 42. moving device; 421. moving ring; 422. driving motor; 43. magnetic particle detection device; 431. circulating ring pipe; 4311. circulating chamber; 432. circulating fan; 433. electrode plate; 434. inlet flow valve; 435. adjustable filter; 4351. first layer filter; 4352. second layer filter; 4353. pushing hydraulic cylinder; 5. steel supplement mechanism; 51. steel powder supplement device; 511. steel powder storage tank; 512. supplement pipe; 513. supplement nozzle; 52. laser; 6. waste heat recovery mechanism; 61. heat exchange tube; 62. chamber to be tested; 621. chamber to be tested. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example: Figure 1-Figure 8 As shown, the present invention provides a technical solution for an outer ring quenching device for a three-proof air duct with a waste heat utilization function. The quenching device quenches a steel ring 1. The quenching device includes a fixing mechanism 2, a quenching furnace 3, a crack detection mechanism 4, a steel filling mechanism 5 and a waste heat recovery mechanism 6. The fixing mechanism 2 is connected to the quenching furnace 3, the fixing mechanism 2 is connected to the steel filling mechanism 5, the quenching furnace 3 is connected to the crack detection mechanism 4, the quenching furnace 3 is connected to the steel filling mechanism 5, the crack detection mechanism 4 is connected to the steel filling mechanism 5, and the quenching furnace 3 is connected to the waste heat recovery mechanism 6;

[0036] The fixing mechanism 2 includes a mounting base plate 21, and the mounting base plate 21 is connected to the quenching furnace 3;

[0037] The quenching furnace 3 is firmly connected to the mounting base plate 21, a quenching chamber 31 is provided in the quenching furnace 3, the steel ring 1 is placed in the quenching chamber 31, and the quenching chamber 31 is connected to the waste heat recovery mechanism 6;

[0038] The waste heat recovery mechanism 6 includes a heat exchange tube 61 and a test chamber 62. A test chamber 621 is provided in the test chamber 62. The heat exchange tube 61 is connected to the test chamber 62. One end of the heat exchange tube 61 is connected to the quenching chamber 31. The end of the heat exchange tube 61 away from the quenching chamber 31 is connected to the test chamber 621.

[0039] In the quenching device, the fixing mechanism 2 is used to provide the foundation of the entire device and support the steel ring 1, the quenching furnace 3 provides a place for quenching the steel ring 1, and the crack detection mechanism 4 is used to detect whether cracks appear in the steel ring 1 during the quenching process. Since the steel ring 1 itself may have internal problems during the manufacturing process, and the purpose of the initial quenching is to make the internal problems of the steel ring 1 appear, the cracks will gradually appear on the surface of the steel ring 1 in the form of cracks during the quenching process. By detecting the position and depth of the cracks, the steel filling mechanism 5 is used to replenish steel powder at the cracks, and the steel powder is melted and attached to the cracks by heating, and then the main quenching is carried out. After the main quenching is completed, the quenching furnace 3 stops heating, and the steel ring 1 stays in it for a period of time. The waste heat recovery mechanism 6 is turned on to transfer the heat in the quenching furnace 3 to the unquenched steel ring 1 to preheat it.

[0040] The quenching furnace 3 is placed on the mounting base plate 21 , and the waste heat recovery mechanism 6 transfers the hot air in the quenching chamber 31 to the chamber to be tested 621 through the heat exchange pipe 61 , thereby realizing the utilization of waste heat.

[0041] The crack detection mechanism 4 includes a radio wave transmitter 41 and a moving device 42. The crack detection mechanism 4 is connected to the quenching furnace 3, the crack detection mechanism 4 is connected to the quenching chamber 31, the radio wave transmitter 41 is placed in the quenching chamber 31, the moving device 42 is connected to the radio wave transmitter 41, the moving device 42 is connected to the quenching chamber 31, the moving device 42 includes a moving ring 421 and a driving motor 422, the driving motor 422 is tightly connected to the outer wall of the quenching chamber 31, a circular mounting hole is provided in the wall of the quenching chamber 31, a through hole is provided on the outer wall of the quenching chamber 31, and the through hole of the quenching chamber 31 and The circular mounting holes are connected, the movable ring 421 is placed in the circular mounting hole, the movable ring 421 and the circular mounting hole are rotatably connected, the output end of the driving motor 422 is fastened to the movable ring 421 through the through hole, there is a circular gap with the same center as the circular mounting hole between the inner wall of the quenching chamber 31 and the circular mounting hole, a fixing rod is fastened to the movable ring 421, the distance from the center of the movable ring 421 to the fixing rod is the radius of the steel ring 1, the radio wave transmitter 41 is fastened to the movable ring 421 through the fixing rod, and the fixing rod connected to the radio wave transmitter 41 is connected to the steel filling mechanism 5.

[0042] In the crack detection mechanism 4, the device is used to detect whether cracks occur in the steel ring 1 during the initial quenching. The detection is performed through the radio wave transmitter 41. The radio wave transmitter 41 transmits radio waves in the direction of the steel ring 1, and returns after contacting the steel ring 1. If there is no crack at the place where the steel ring 1 is detected, it returns in a normal time; if there is a crack, it takes a long time for the radio wave to contact the steel ring 1 and then return. In this process, it is specifically manifested by the magnetic powder detection device 43, and then the cracked place is supplemented with steel powder through the steel filling mechanism 5, and then the steel powder is melted by high temperature and fused with the tempered 1. After completion, the drive motor 422 is started to move with the radio wave transmitter 41. Since the distance from the center of the moving ring 421 to the fixed rod is the radius of the steel ring 1, the transmitting end of the radio wave transmitter 41 is always facing the entity of the steel ring 1 during movement, and the detection operation is repeated.

[0043] The installation base plate 21 is connected to the crack detection mechanism 4, and the crack detection mechanism 4 also includes a magnetic powder detection device 43, which is connected to the installation base plate 21. The magnetic powder detection device 43 includes detection magnetic powder, a circulation ring pipe 431, a circulation fan 432 and an electrode plate 433. The circulation ring pipe 431 is placed on the installation base plate 21. Openings are symmetrically arranged on both sides of the circulation ring pipe 431. There are two electrode plates 433. The two electrode plates 433 are fastened to the installation base plate 21. The two electrode plates 433 are respectively connected to The circulation ring pipe 431 is opened and fastened, the two electrode plates 433 are parallel to each other, a magnetic powder circulation chamber 4311 is arranged in the circulation ring pipe 431, a circulation fan 432 is placed on the mounting base plate 21, the circulation fan 432 is connected to the circulation ring pipe 431, the air outlet of the circulation fan 432 is connected to the circulation chamber 4311, the detection magnetic powder is placed in the circulation chamber 4311, the magnetic powder detection device 43 also includes an inlet flow valve 434 and an adjustable filter 435, the inlet flow valve 434 is connected to the circulation ring pipe 431 ... The metering valve 434 is placed at one end where the circulation chamber 4311 and the electrode plate 433 are connected. The adjustable filter 435 is placed in the circulation chamber 4311. The adjustable filter 435 is connected to the inner wall of the circulation chamber 4311. The adjustable filter 435 includes a first-layer filter 4351, a second-layer filter 4352 and a pushing hydraulic cylinder 4353. The first-layer filter 4351 is tightly connected to the inner wall of the circulation chamber 4311, and the second-layer filter 4352 is rotatably connected to the inner wall of the circulation chamber 4311. The first-layer filter 4351 and the second-layer filter 4352 have Several sub-nets, a first-layer filter screen 4351 and a second-layer filter screen 4352 overlap in the initial state, several sub-nets of the second-layer filter screen 4352 are connected by a fixed ring, the inner wall of the circulation chamber 4311 and the fixed ring are slidably connected, a movable groove is provided at the bottom where the circulation chamber 4311 and the fixed ring are connected, a push rod is hinged on the fixed ring of the second-layer filter screen 4352, the push rod and the movable groove are slidably connected, the fixed end of the push hydraulic cylinder 4353 is fastened to the mounting base plate 21 through a baffle, and the output end of the push hydraulic cylinder 4353 is fastened to the push rod.

[0044] In the crack detection mechanism 4, the mechanism is used to detect cracks in the steel ring 1 after the initial quenching is completed. The mechanism has two groups, and both sides of the steel ring 1 are detected simultaneously. Since the steel ring 1 itself may have internal problems during the manufacturing process, and the purpose of the initial quenching is to make the problems of the steel ring 1 appear through the cracks, the steel ring 1 is detected through the radio wave transmitter 41, and the circulation fan 432 is started first, and the inlet flow valve 434 is also opened, and the adjustable filter 435 is in the initial state. After the circulation fan 432 is started, the detection magnetic powder flows at a uniform speed in the circulation chamber 4311. When the radio wave transmitter 41 sends out radio waves, the inlet flow valve 434 is closed, so the detection magnetic powder will be intercepted when it arrives here from the other end, and electrode plates 433 are provided on both sides of this section, and the electrode plates 433 and the quenching furnace 3 are connected by wires. The detection magnetic powder will accumulate here continuously, so that the current increases. If no cracks are detected, the radio waves return at normal time. After receiving , the inlet flow valve 434 is opened, and the detection magnetic powder continues to move under the action of the circulating fan 432; if a crack is detected, due to the existence of the crack, the speed at which the radio wave returns is slower than the normal speed. At this time, the detection magnetic powder accumulates more, and the current in the circuit where the electrode plate 433 is located becomes larger, exceeding the circuit when there is no crack. The inlet flow valve 434 is opened, and the adjustable filter 435 is unfolded. The detection magnetic powder cannot pass through the filter, and only air can pass through. The circulating fan 432 is started, so that the detection magnetic powder enters the circulation chamber 4311 again, but is intercepted by the adjustable filter 435 and cannot reach the electrode plate 433 again. There is only air in the electrode plate 433, and the circuit connected to the electrode plate 433 and the quenching furnace 3 is powered off. The quenching furnace 3 is powered off, and there is a crack in the detected steel ring 1. The subsequent steel filling mechanism 5 performs a steel filling operation, and then repeats the detection operation at other places of the steel ring 1. When and only when the two sets of detection mechanisms cannot detect cracks, the quenching furnace 3 is restarted for the main quenching.

[0045] The steel replenishing mechanism 5 includes a steel powder replenishing device 51, which is connected to the fixing mechanism 2, and is connected to the mounting base plate 21. The steel powder replenishing device 51 includes a steel powder storage tank 511, a replenishing pipe 512 and a replenishing nozzle 513. The steel powder storage tank 511 is tightly connected to the mounting base plate 21. The steel powder storage tank 511 is connected to a replenishing pipe 512. One end of the replenishing pipe 512 away from the steel powder storage tank 511 is connected to the replenishing nozzle 513. The replenishing nozzle 513 is placed in the quenching chamber 31. The replenishing pipe 512 passes through the wall of the quenching chamber 31. The replenishing pipe 512 is tightly connected to the fixing rod connected to the radio wave transmitter 41. The replenishing nozzle 513 faces the front of the radio wave transmitter 41 that emits radio waves. The replenishing pipe 512 and the replenishing nozzle 513 are both metals with a higher melting point than steel powder.

[0046] In the steel replenishing mechanism 5, the steel powder replenishing device 51 is used to replenish steel powder at the cracks. The steel powder storage tank 511 is mixed with steel powder and combustion-supporting powder, and the two are evenly mixed. Because when replenishing steel powder at the cracks of the steel ring 1, it is necessary to heat the steel powder to melt it on the steel ring 1, and the combustion-supporting powder can accelerate the melting of the steel powder. The mixed steel powder and combustion-supporting powder are driven by the pump body, pumped out from the steel powder storage tank 511 to the replenishing pipe 512, and then sprayed out by the replenishing nozzle 513. The direction of the replenishing nozzle 513 is the position of the steel ring where the radio wave emitted by the radio wave transmitter 41 reaches, so the steel powder can be sprayed directly on the cracks. The replenishing pipe 512 and the replenishing nozzle 513 are both made of metal with a melting point higher than the melting point of the steel powder. Therefore, they are not greatly affected by the temperature when working in the quenching chamber 31.

[0047] The steel-repairing mechanism 5 also includes a laser 52, the emission end of the laser 52 is directed toward the steel ring 1 where the radio wave of the radio wave transmitter 41 acts, the laser 52 and the fixing rod connected to the radio wave transmitter 41 are tightly connected, and the steel ring 1 contacts the steel powder and partially overlaps with the laser beam.

[0048] In the steel repair mechanism 5, the steel powder replenishing device 51 is used to add steel powder to the cracks, so that the laser 52 performs laser heating on the cracks of the steel ring 1. The laser beam emitted by the laser 52 to the steel ring 1 and the steel powder sprayed by the replenishing nozzle 513 to the steel ring 1 are consistent in position, both of which are at the place where the radio wave of the radio wave transmitter 41 contacts the steel ring 1. When repairing steel, the laser 52 is started first, and then the replenishing nozzle 513 sprays steel powder and combustion-supporting powder to the cracks of the steel ring 1. The steel powder is melted onto the steel ring 1 under the action of the laser beam and the combustion-supporting powder to repair the cracks. After completion, the steel powder replenishing device 51 stops first, and then the laser 52 stops working.

[0049] The fixing mechanism 2 further comprises a clamping ring 22 , which is connected to the quenching furnace 3 , and is placed in the quenching chamber 31 . The clamping ring 22 and the side wall of the quenching chamber 31 are fastened together via a support rod.

[0050] In the fixing mechanism 2, the clamping ring 22 is used to clamp the steel ring 1 so that the steel ring 1 is in a suspended upright state in the quenching furnace 3. In this way, the steel ring 1 can be quenched evenly in the quenching chamber 31. At the same time, the crack detection of the steel ring 1 can be carried out on both sides at the same time to improve efficiency.

[0051] The waste heat recovery mechanism 6 also includes a heat exchange fan, which is placed in the heat exchange tube 61 and driven by a servo motor.

[0052] In the waste heat recovery mechanism 6, the mechanism is used for after the quenching of the quenching furnace 3 is completed. When the steel ring 1 is stationary in the quenching chamber 31, it absorbs part of the heat in the quenching chamber 31, and transfers part of the heat to the chamber to be tested 621 through the heat exchange tube 61. The heat exchange tube 61 is respectively connected to the top of the quenching chamber 31 and the bottom of the chamber to be tested 621. Because the density of hot air is smaller than that of normal air, in a device, the hot air will be above the device, and the cold air will be placed below the device. The heat exchange tube 61 is connected to the top of the quenching chamber 31, which can better absorb the hot air. At the same time, the heat exchange tube 61 is connected to the bottom of the chamber to be tested 621. After the hot air enters the chamber to be tested 621, it will move from the bottom of the chamber to be tested 621 to the top, which can be preheated more fully. At the same time, the heat exchange fan is placed in the heat exchange tube 61 to accelerate the transfer of heat.

[0053] Working principle of the present invention: after the present invention is started, the steel ring 1 is fixed inside the quenching chamber 31 by the clamping ring 22, the quenching furnace 3 is started normally, the steel ring 1 is subjected to the initial quenching, and the circulating fan 432 is started at the same time, so that the detection magnetic powder in the circulating chamber 4311 moves along the circulating chamber 4311 at a constant speed. After quenching for a period of time, the radio wave transmitter 41 emits radio waves toward a place of the steel ring 1. When the radio waves are emitted, the inlet flow valve 434 is closed, so the detection magnetic powder will be intercepted when it arrives here from the other end. Electrode plates 433 are provided on both sides of this section, and the electrode plates 433 and the quenching furnace 3 are connected by wires. The detection magnetic powder will accumulate here continuously, so that the current increases. If no cracks are detected, the radio waves return in normal time. After receiving them, the inlet flow valve 434 is opened, and the detection magnetic powder continues to move under the action of the circulating fan 432; if a crack is detected, due to the existence of cracks, the speed at which the radio waves return is slower than the normal speed. At this time, the detection magnetic powder accumulates more, and the current in the circuit where the electrode plate 433 is located becomes larger, exceeding the value of no cracks. The circuit when there is a crack, the inlet flow valve 434 is opened, the adjustable filter 435 is unfolded, the detection magnetic powder cannot pass through the filter, only air can pass, the circulation fan 432 is started, so that the detection magnetic powder enters the circulation chamber 4311 again, but is intercepted by the adjustable filter 435 and cannot reach the electrode plate 433. There is only air in the electrode plate 433, the circuit connected between the electrode plate 433 and the quenching furnace 3 is powered off, the quenching furnace 3 is powered off, and there is a crack in the steel ring 1 just detected. The crack is repaired by the steel repair mechanism 5. Steel powder is added to the seam. There is also a combustion aid in the steel powder to help the steel powder and the steel ring 1 to fuse better. After completion, the driving motor 422 is started to move the radio wave transmitter 41, and then the above operation is repeated. After there are no cracks, the main quenching is carried out, and the quenching furnace 3 is started to quench the steel ring 1. After the quenching is completed, the quenching furnace 3 is powered off, but the steel ring 1 is not taken out for the time being and is left to stand for a while. At the same time, the waste heat recovery mechanism 6 is started to transfer the heat in the quenching furnace 3 to the test cavity 621 to preheat the steel ring 1 to be quenched.

[0054] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. An outer ring quenching device for a triple-proof air duct with a waste heat utilization function, the quenching device quenches a steel ring (1), characterized in that: The quenching equipment comprises a fixing mechanism (2), a quenching furnace (3), a crack detection mechanism (4), a steel filling mechanism (5) and a waste heat recovery mechanism (6); the fixing mechanism (2) is connected to the quenching furnace (3), the fixing mechanism (2) is connected to the steel filling mechanism (5), the quenching furnace (3) is connected to the crack detection mechanism (4), the quenching furnace (3) is connected to the steel filling mechanism (5), the crack detection mechanism (4) is connected to the steel filling mechanism (5), and the quenching furnace (3) is connected to the waste heat recovery mechanism (6); The fixing mechanism (2) comprises a mounting base plate (21), and the mounting base plate (21) is connected to the quenching furnace (3); The quenching furnace (3) and the mounting base plate (21) are tightly connected, a quenching chamber (31) is provided in the quenching furnace (3), the steel ring (1) is placed in the quenching chamber (31), and the quenching chamber (31) is connected to a waste heat recovery mechanism (6); The waste heat recovery mechanism (6) comprises a heat exchange tube (61) and a chamber to be tested (62). A chamber to be tested (621) is provided in the chamber to be tested (62). The heat exchange tube (61) and the chamber to be tested (62) are connected. One end of the heat exchange tube (61) is connected to the quenching chamber (31). The end of the heat exchange tube (61) away from the quenching chamber (31) is connected to the chamber to be tested (621).

2. The outer ring quenching equipment for triple-proof cloth air duct with waste heat utilization function according to claim 1 is characterized in that: The crack detection mechanism (4) comprises an electric wave transmitter (41) and a moving device (42); the crack detection mechanism (4) is connected to the quenching furnace (3); the crack detection mechanism (4) is connected to the quenching chamber (31); the electric wave transmitter (41) is placed in the quenching chamber (31); the moving device (42) is connected to the electric wave transmitter (41); the moving device (42) is connected to the quenching chamber (31); the moving device (42) comprises a moving ring (421) and a driving motor (422); the driving motor (422) is tightly connected to the outer wall of the quenching chamber (31); a circular mounting hole is provided in the wall of the quenching chamber (31); and a through hole is provided on the outer wall of the quenching chamber (31). The through hole of the quenching chamber (31) is connected to the circular mounting hole, the moving ring (421) is placed in the circular mounting hole, the moving ring (421) and the circular mounting hole are rotatably connected, the output end of the driving motor (422) is tightly connected to the moving ring (421) through the through hole, there is a circular gap with the same center as the circular mounting hole between the inner wall of the quenching chamber (31) and the circular mounting hole, a fixing rod is tightly connected to the moving ring (421), the distance from the center of the moving ring (421) to the fixing rod is the radius of the steel ring (1), the radio wave transmitter (41) is tightly connected to the moving ring (421) through the fixing rod, and the fixing rod connected to the radio wave transmitter (41) is connected to the steel filling mechanism (5).

3. The outer ring quenching equipment for triple-proof cloth air duct with waste heat utilization function according to claim 1 is characterized in that: The mounting base plate (21) is connected to the crack detection mechanism (4), and the crack detection mechanism (4) further comprises a magnetic powder detection device (43). The magnetic powder detection device (43) is connected to the mounting base plate (21), and the magnetic powder detection device (43) comprises detection magnetic powder, a circulation ring pipe (431), a circulation fan (432), and an electrode plate (433). The circulation ring pipe (431) is placed on the mounting base plate (21), and openings are symmetrically arranged on both sides of the circulation ring pipe (431). The electrode plates (433) are provided with two, and the two electrode plates (433) is tightly connected to the mounting base plate (21), the two electrode plates (433) are tightly connected to the openings of the circulation ring tube (431) respectively, the two electrode plates (433) are parallel to each other, a magnetic powder circulation chamber (4311) is provided in the circulation ring tube (431), the circulation fan (432) is placed on the mounting base plate (21), the circulation fan (432) is connected to the circulation ring tube (431), the air outlet of the circulation fan (432) is connected to the circulation chamber (4311), and the detection magnetic powder is placed in the circulation chamber (4311).

4. The outer ring quenching equipment for triple-proof fabric air duct with waste heat utilization function according to claim 3 is characterized in that: The magnetic particle detection device (43) further comprises an inlet flow valve (434) and an adjustable filter (435), wherein the inlet flow valve (434) is connected to the circulation ring pipe (431), and the inlet flow valve (434) is placed at one end where the circulation chamber (4311) and the electrode plate (433) are connected, and the adjustable filter (435) is placed in the circulation chamber (4311), and the adjustable filter (435) is connected to the inner wall of the circulation chamber (4311), and the adjustable filter (435) comprises a first layer of filter (4351), a second layer of filter (4352) and a pushing hydraulic cylinder (4353), wherein the first layer of filter (4351) is tightly connected to the inner wall of the circulation chamber (4311), and the second layer of filter (4352) and the circulation chamber (4311) are tightly connected. The inner wall of the cavity (4311) is rotatably connected, the first layer filter (4351) and the second layer filter (4352) both have a plurality of sub-nets, the first layer filter (4351) and the second layer filter (4352) overlap in an initial state, the plurality of sub-nets of the second layer filter (4352) are connected via a fixed ring, the inner wall of the circulation cavity (4311) is slidably connected to the fixed ring, a movable groove is provided at the bottom where the circulation cavity (4311) and the fixed ring are connected, a push rod is hinged on the fixed ring of the second layer filter (4352), the push rod and the movable groove are slidably connected, the fixed end of the pushing hydraulic cylinder (4353) is fastened to the mounting base plate (21) via a baffle plate, and the output end of the pushing hydraulic cylinder (4353) is fastened to the push rod.

5. The outer ring quenching equipment for triple-proof fabric air duct with waste heat utilization function according to claim 2 is characterized in that: The steel replenishing mechanism (5) comprises a steel powder replenishing device (51), the steel powder replenishing device (51) is connected to the fixing mechanism (2), the steel powder replenishing device (51) is connected to the mounting base plate (21), the steel powder replenishing device (51) comprises a steel powder storage tank (511), a replenishing pipe (512) and a replenishing nozzle (513), the steel powder storage tank (511) is tightly connected to the mounting base plate (21), the steel powder storage tank (511) is connected to the replenishing pipe (512), and the replenishing nozzle (513) is connected to the steel powder storage tank (511). 12) One end away from the steel powder storage tank (511) is connected to a supplementary nozzle (513), the supplementary nozzle (513) is placed in the quenching chamber (31), the supplementary pipe (512) passes through the wall of the quenching chamber (31), the supplementary pipe (512) and the fixing rod connected to the radio wave transmitter (41) are tightly connected, the supplementary nozzle (513) faces the steel ring (1) where the radio wave of the radio wave transmitter (41) acts, and the supplementary pipe (512) and the supplementary nozzle (513) are both metals with a melting point higher than that of steel powder.

6. The outer ring quenching equipment for triple-proof cloth air duct with waste heat utilization function according to claim 5 is characterized in that: The steel-repairing mechanism (5) further comprises a laser (52), the emission end of the laser (52) being directed toward the steel ring (1) where the radio wave of the radio wave transmitter (41) acts, the laser (52) and the fixing rod connected to the radio wave transmitter (41) being tightly connected, and the steel ring (1) contacting the steel powder and the laser beam partially overlap.

7. The outer ring quenching equipment for triple-proof cloth air duct with waste heat utilization function according to claim 1 is characterized in that: The fixing mechanism (2) further comprises a clamping ring (22), the clamping ring (22) being connected to the quenching furnace (3), the clamping ring (22) being placed in the quenching chamber (31), and the clamping ring (22) and the side wall of the quenching chamber (31) being fastened together via a support rod.

8. The outer ring quenching equipment for triple-proof fabric air duct with waste heat utilization function according to claim 1 is characterized in that: The waste heat recovery mechanism (6) further comprises a heat exchange fan, which is disposed in the heat exchange tube (61) and driven by a servo motor.

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