Quenching cooling system for heat treatment and quenching cooling method thereof

Abstract

The invention relates to a quenching cooling system for heat treatment and a quenching cooling method thereof. A second cooling pool and a first cooling pool of the cooling system are arranged at an interval; the spraying piece and the filtering piece are both arranged in the first cooling pond, and the spraying piece is provided with a plurality of nozzles; the filtering piece is positioned above the spraying piece; the input end of the first pump body is communicated with a first pipeline, the first pipeline extends into the first cooling pond, a first valve body is arranged on the first pipeline, the first output end of the first pump body is communicated with a second pipeline, the second pipeline extends into the first cooling pond and is communicated with the spraying part, and a second valve body is arranged on the second pipeline; the second output end is communicated with the second cooling pond through a third pipeline, and a second valve body is arranged on the third pipeline; the first end of the connecting pipeline is communicated with the second cooling tank, and the second end penetrates through the first cooling tank and is connected with the spraying piece. The maintenance work of the cooling pond can be reduced, cooling liquid in the first cooling pond can be evenly cooled, and the cooling effect and cooling efficiency of the steel forgings are guaranteed.

Description

Technical Field

[0001] This application belongs to the technical field of heat treatment, and particularly relates to a quenching cooling system for heat treatment and a quenching cooling method thereof. Background Art

[0002] The cooling of alloy steel forgings after heat treatment quenching is an essential part of the alloy steel production process.

[0003] In the related art, a cooling pool is a cooling device for cooling alloy steel forgings. The output shaft of a motor is connected to a paddle through a transmission rod to drive the paddle to rotate in the cooling pool, and the rotation of the paddle is used to stir the coolant in the cooling pool to achieve the effect of cooling the alloy steel forgings.

[0004] In the process of implementing this application, the applicant found that there are at least the following deficiencies in the related art: In the related art, a bearing seat is provided on the side wall of the cooling pool. A bearing is built in the bearing seat, and the transmission rod passes through the bearing so that the transmission rod can extend to the bottom of the cooling pool, so that the paddle can be assembled to the bottom of the cooling pool. Since the bearing is easily corroded by the coolant, the bearing needs to be replaced regularly, and the maintenance work is troublesome; moreover, since the bearing seat is provided on the side wall of the cooling pool, the paddle can only stir one side of the cooling pool, and then the cooling in the cooling pool is uneven, resulting in a long cooling time for the steel forgings. Summary of the Invention

[0005] This application provides a quenching cooling system for heat treatment and a quenching cooling method, aiming to solve at least to a certain extent the technical problems of troublesome maintenance work, uneven cooling in the cooling pool, and long cooling time of steel forgings in the related art.

[0006] In the first aspect of this application, a quenching cooling system for heat treatment is provided. The cooling system includes a first cooling pool with an input port opened at the top; a second cooling pool arranged at an interval from the first cooling pool; a spraying member built in the first cooling pool, and the spraying member is provided with a plurality of nozzles; a filtering member built in the first cooling pool and located above the spraying member; a first pump body provided outside the first cooling pool. The first pump body has an input end, a first output end and a second output end. The input end is communicated with a first pipeline, and the first pipeline extends into the first cooling pool; the first output end is communicated with a second pipeline, and the second pipeline extends into the first cooling pool and is communicated with the spraying member. A first valve body is provided on the second pipeline; the second output end is communicated with the second cooling pool through a third pipeline, and a second valve body is provided on the third pipeline; a connecting pipeline has a first end and a second end. The first end is communicated with the second cooling pool, and the second end penetrates through the first cooling pool and is connected with the spraying member.

[0007] In some embodiments, a thermostat is built into the first cooling pool, and the thermostat is linked with the first valve body and the second valve body.

[0008] In some embodiments, the filter element is disposed in the first cooling pool in a liftable manner.

[0009] In some embodiments, the cooling system further includes a lifting assembly, and the lifting assembly includes: a driving member connected to the side wall of the first cooling pool; two connecting rods both spanning across the first cooling pool, with two ends of each connecting rod rotatably connected to two opposite side walls of the first cooling pool respectively, and an end of each connecting rod being connected to a first flexible member in a retractable manner, and the other end of the first flexible member being connected to the filter element.

[0010] In some embodiments, the driving member includes: a driving wheel rotatably connected to the outer side wall of the first cooling pool; a first driving wheel meshing with the driving wheel; a first driven wheel connected to an end of one of the connecting rods protruding from the first cooling pool, and the first driven wheel meshing with the first driving wheel through a first belt; a second driving wheel meshing with the driving wheel; a second driven wheel connected to an end of the other connecting rod protruding from the first cooling pool, and the second driven wheel meshing with the second driving wheel through a second belt.

[0011] In some embodiments, a third valve body is provided on the connecting pipe.

[0012] In some embodiments, a second pump body is provided on the connecting pipe; and / or, the third valve body is a ball valve, an operating rod of the ball valve is connected to a floating ball through a second flexible member, at least a part of the second flexible member is flexible, and the floating ball is located in the first cooling pool.

[0013] In some embodiments, the cooling system further includes an intermediate cooling pool disposed between the first cooling pool and the second cooling pool. The intermediate cooling pool is communicated with a second output end of the first pump body through the third pipe, the intermediate cooling pool is communicated with the second cooling pool through a fourth pipe, and a fourth valve body is provided on the fourth pipe.

[0014] In some embodiments, the first cooling pool is disposed in the ground, and a sand layer is arranged around the first cooling pool.

[0015] In the second aspect of the present application, the present application also provides a quenching cooling method, the quenching cooling method includes: obtaining the real-time temperature in the first cooling pool; comparing the real-time temperature and the set temperature; if the real-time temperature is lower than the set temperature, controlling the first valve body to open, the second valve body to close, and the first pump body to transport the coolant in the first cooling pool to the spray part through the second pipeline; if the real-time temperature is lower than the set temperature, controlling the second valve body to open, the first valve body to close, and the first pump body to transport the coolant in the first cooling pool to the second cooling pool through the third pipeline, and transport it to the spray part through the fourth pipeline.

[0016] The quenching cooling system and quenching cooling method for heat treatment provided by the present application have an inlet at the top of the first cooling pool, and the filter is built into the first cooling pool. The steel forging can be transferred to the filter by means of a tower crane, so that the steel forging is placed in the coolant in the first cooling pool. Since the spray component is built into the first cooling pool, the spray component is provided with a plurality of nozzles, the filter component is located above the spray component, the input end of the first pump body is connected to the first pipeline, the first pipeline extends into the first cooling pool, the first pipeline is provided with a first valve body, the first output end is connected to the second pipeline, the second pipeline extends into the first cooling pool and is connected to the spray component, therefore, when the real-time temperature in the first cooling pool is lower than the set temperature, the first pump body transports the coolant in the first cooling pool to the spray component through the second pipeline, so that the coolant with appropriate temperature can be sprayed in the first cooling pool in the form of spraying to cool the steel forging; Since the second output end is connected to the second cooling pool through the third pipe, a second valve body is arranged on the third pipe, and the second output end is connected to the second cooling pool through the third pipe, and a second valve body is arranged on the third pipe; the first end of the connecting pipe is connected to the second cooling pool, and the second end passes through the first cooling pool and is connected to the spray part. Therefore, when the real-time temperature in the first cooling pool is greater than the set temperature, the first pump body transports the coolant in the first cooling pool to the second cooling pool through the third pipe for cooling, and then transports it to the spray part through the connecting pipe, so that the high-temperature coolant can be sprayed in the first cooling pool in the form of a spray to cool the steel forgings.

[0017] From the above, it can be seen that the quenching cooling system and quenching cooling method for heat treatment provided in the present application are a method of cooling steel forgings by spraying coolant, thereby eliminating accessories such as motors, impellers and bearings in related technologies, reducing the maintenance work of the cooling pool, and can evenly cool the coolant in the first cooling pool, and adjust the delivery method of the spraying liquid in real time according to the real-time temperature in the first cooling pool to ensure the cooling effect and cooling efficiency of the steel forgings, and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 Shows a schematic structural diagram of the quenching cooling system 10 in one or more embodiments of the present application; Figure 2 Shows a schematic layout diagram of the first cooling pool 110; Figure 3 Shows a schematic layout diagram inside the first cooling pool 110; Figure 4 Shows a schematic structural diagram of the first cooling pool 110; Figure 5 Shows a schematic structural diagram of the filter element 140; Figure 6 Shows Figure 2 front elevation schematic diagram of; Figure 7 Shows a schematic structural diagram of the spray member 130; Figure 8 Shows a schematic structural diagram of the second cooling pool 120; Figure 9 Shows a schematic structural diagram of the quenching cooling system 10b; Figure 10 Shows a schematic structural diagram of the third valve body 161; Figure 11 Shows a schematic structural diagram of the quenching cooling system 10c; Figure 12 Shows a schematic flow diagram of the quenching cooling method.

[0020] Explanation of reference numerals: Quenching cooling systems for heat treatment - 10a, 10b, 10c; First cooling pool - 110, input port - 111; Second cooling pool - 120, filter screen - 121; Spray member - 130, spray pipe - 131; Filter element - 140; filter body - 141, retaining edge - 142; First pump body - 150, first pipeline - 151, second pipeline - 152, first valve body - 153, third pipeline - 154, second valve body - 155; Connecting pipeline - 160, third valve body - 161, operating rod - 162, second flexible member - 163, float - 164; Lifting assembly - 170, driving member - 171, driving wheel - 1711, first transmission wheel - 1712, first driven wheel - 1713, second transmission wheel - 1714, second driven wheel - 1715, first belt - 1716, second belt - 1717, handle - 1718, connecting rod - 172, first flexible member - 173; Second pump body - 180; Intermediate cooling pool - 190, fourth pipeline - 191, fourth valve body - 192. Specific implementation manner

[0021] In order to enable those skilled in the art in the technical field to which this application belongs to more clearly understand this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of this application.

[0022] The cooling of the forged alloy steel forging after forging is an essential part of the alloy steel production process. In the related art, the cooling liquid in the cooling pool is stirred by a rotating impeller to achieve the effect of cooling the alloy steel forging, but there are technical problems such as troublesome maintenance work, uneven cooling in the cooling pool, and long cooling time for the steel forging.

[0023] Based on the above technical problems, this application provides a quenching cooling system and a quenching cooling method for heat treatment, aiming to solve at least to a certain extent the technical problems of troublesome maintenance work, uneven cooling in the cooling pool, and long cooling time for the steel forging in the related art.

[0024] Figure 1 Shows the structural schematic diagram of the quenching cooling system 10a in one or more embodiments of this application, Figure 2 Shows the layout schematic diagram of the first cooling pool 110, Figure 3 Shows the layout schematic diagram inside the first cooling pool 110. In combination with Figures 1 - 3, the quenching and cooling system 10a includes a first cooling pool 110, a second cooling pool 120, a spraying member 130, a filtering member 140, a first pump body 150, and a connecting pipeline 160. An input port 111 is provided at the top of the first cooling pool 110; the second cooling pool 120 and the first cooling pool 110 are arranged at intervals; the spraying member 130 is disposed inside the first cooling pool 110, and the spraying member 130 is provided with a plurality of nozzles; the filtering member 140 is disposed inside the first cooling pool 110 and is located above the spraying member 130; the first pump body 150 is arranged outside the first cooling pool 110. The first pump body 150 has an input end, a first output end, and a second output end. The input end is communicated with a first pipeline 151, the first pipeline 151 extends into the first cooling pool 110, the first output end is communicated with a second pipeline 152, the second pipeline 152 extends into the first cooling pool 110 and is communicated with the spraying member 130, and a first valve body 154 is arranged on the second pipeline 152; the second output end is communicated with the second cooling pool 120 through a third pipeline 154, and a second valve body 155 is arranged on the third pipeline 154; the connecting pipeline 160 has a first end and a second end. The first end is communicated with the second cooling pool 120, and the second end penetrates through the first cooling pool 110 and is connected to the spraying member 130.

[0025] In the cooling device 10 provided by the present application, since the input port 111 is provided at the top of the first cooling pool 110 and the filtering member 140 is disposed inside the first cooling pool 110, the steel forging can be transferred into the filtering member 140 by means of a tower crane or the like, so that the steel forging is placed in the coolant inside the first cooling pool 110; Since the spraying member 130 is disposed inside the first cooling pool 110, the spraying member 130 is provided with a plurality of nozzles, the filtering member 140 is located above the spraying member 130, the input end of the first pump body 150 is communicated with the first pipeline 151, the first pipeline 151 extends into the first cooling pool 110, a first valve body 152 is arranged on the first pipeline 151, the first output end is communicated with the second pipeline 152, the second pipeline 152 extends into the first cooling pool 110 and is communicated with the spraying member 130. Therefore, when the real-time temperature inside the first cooling pool 110 is less than the set temperature, the first pump body 150 transports the coolant inside the first cooling pool 110 to the spraying member 130 through the second pipeline 152, so that the coolant with appropriate temperature can be sprayed inside the first cooling pool 110 in the form of spraying, and the steel forging is cooled by means of internal circulation. Since the second output end is connected to the second cooling pool 120 through the third pipeline 154, and a second valve body 155 is provided on the third pipeline 154. The second output end is connected to the second cooling pool 120 through the third pipeline 154, and a second valve body 155 is provided on the third pipeline 154. The first end of the connecting pipeline 160 is connected to the second cooling pool 120, and the second end passes through the first cooling pool 110 and is connected to the spraying member 130. Therefore, when the real-time temperature in the first cooling pool 110 is greater than the set temperature, the first pump body 150 transports the coolant in the first cooling pool 110 to the second cooling pool 120 through the third pipeline 154 for cooling, and then transports it to the spraying member 130 through the connecting pipeline 160, so that the temperature coolant can be sprayed in the first cooling pool 110 in the form of spraying, and the steel forging can be cooled by means of external circulation. Now, with the help of the attached drawings, the specific details of the quenching cooling system 10a will be further described.

[0026] Figure 4 shows a schematic structural diagram of the first cooling pool 110. Combining Figure 4 , the first cooling pool 110 of the present application is a steel structure in the shape of a box with an open top, which serves as the input port 111 for the steel forging. The first cooling pool 110 is arranged inside the ground, so that the coolant in the first cooling pool 110 can be cooled by means of ground cooling. The top of the first cooling pool 110 protrudes a certain height above the ground to prevent the technical problem of coolant splashing when the steel forging is put into the first cooling pool 110, and can also prevent to a certain extent the safety problem caused by employees accidentally stepping into the first cooling pool 110. At the same time, it is also convenient for the setting of the first pump body 150 and the lifting assembly 170 described later.

[0027] In addition, a sand layer is also laid on the ground for assembling the first cooling pool 110. The sand layer can be formed by piling up sand. The sand layer is arranged on the periphery of the first cooling pool 110 (including at least one of the side wall and the bottom) to improve the cooling effect of the coolant in the first cooling pool 110, and can also relieve to a certain extent the vibration phenomenon generated when the first cooling pool 110 is in use, which has good practicability.

[0028] In some embodiments, the steel forging can be lifted to the filtering member 140 by means of a tower crane. In other embodiments, the steel forging can also be transferred to the filtering member 140 by means of a fixture such as a robot. The present application does not limit this.

[0029] Figure 5 shows a schematic structural diagram of the filtering member 140. Combining Figure 5, the filter element 140 of the present application includes a filter body 141 and a baffle 142 disposed on the peripheral side of the filter body 141. The filter body 141 is provided with grid-shaped filter holes. When cooling the steel forging, the steel forging is placed on the filter body 141, and the coolant sprayed by the spraying member 130 is sprayed onto the steel forging through the filter holes to cool down the steel forging. Since some residues may be generated when the steel forging is cooled and fall onto the filter body 141, the baffle 142 disposed on the peripheral side of the filter body 141 can prevent the residues on the filter body 141 from moving to other positions, so as to facilitate the cleaning of the residues on the filter body 141.

[0030] Combined with Figure 4 and Figure 5 , a baffle 112 is provided on the side wall of the first cooling pool 110. The baffle 112 can be arranged around the circumferential surface of the first cooling pool 110. The filter element 140 is separably supported in the first cooling pool 110 through the baffle 112 to facilitate the maintenance of the filter element 140.

[0031] Combined with Figure 2 and Figure 3 , the filter element 140 is disposed in the first cooling pool 110 in a liftable manner. The quenching cooling system 10a further includes a lifting assembly 170. The lifting assembly 170 is connected to the filter element 140. When it is necessary to clean the filter element 140, the filter element 140 can be quickly lifted to the feeding port of the first cooling pool 110 by operating the lifting assembly 170 to facilitate the cleaning and maintenance of the filter element 140; after the cleaning and maintenance of the filter element 140 is completed, the filter element 140 can be quickly lowered into the first cooling pool 110 by the lifting assembly 170.

[0032] Figure 6 Shows the Figure 2 front view schematic diagram. Combined with Figure 2 and Figure 6, in some embodiments, the lifting assembly 170 includes a driving member 171 and two connecting rods 172. The driving member 171 is connected to the side wall of the first cooling pool 110; the two connecting rods 172 both span across the first cooling pool 110, and the two ends of the connecting rod 172 are respectively rotatably connected to two opposite side walls of the first cooling pool 110. The end of each connecting rod 172 is connected to the first flexible member 173 in a rewinding manner, and the other end of the first flexible member 173 is connected to the filter member 140. The first flexible member 173 can be a chain, and the first flexible member 173 can be tied to the edge 142 of the filter member 140. When it is necessary to lift the filter member 140, control the driving member 171 to rotate. The driving member 171 drives the two connecting rods 172 to rotate, so that the first flexible member 173 is rewound on the corresponding connecting rod 172, thereby lifting the filter member 140 to the feeding port of the first cooling pool 110 to facilitate the cleaning and maintenance of the filter member 140. After the cleaning and maintenance of the filter member 140 are completed, control the driving member 171 to rotate in the reverse direction, so that the first flexible member 173 is unreeled on the corresponding connecting rod 172, so as to quickly lower the filter member 140 into the first cooling pool 110.

[0033] In some embodiments, bearings (not shown in the figure) can be provided on the side wall of the first cooling pool 110, and the end of the connecting rod 172 passes through the bearing, so that the connecting rod 172 can rotate smoothly on the side wall of the first cooling pool 110.

[0034] Combined with Figure 6 , in some embodiments, the driving member 171 includes a driving wheel 1711, a first transmission wheel 1712, a first driven wheel 1713, a second transmission wheel 1714 and a second driven wheel 1715. The driving wheel 1711 is rotatably connected to the outer side wall of the first cooling pool 110; the first transmission wheel 1712 is engaged with the driving wheel 1711, the first driven wheel 1713 is connected to the end of one of the connecting rods 172 protruding from the first cooling pool 110, and the first driven wheel 1713 is engaged with the first transmission wheel 1712 through the first belt 1716; the second transmission wheel 1714 is engaged with the driving wheel 1711; the second driven wheel 1715 is connected to the end of the other connecting rod 172 protruding from the first cooling pool 110, and the second driven wheel 1715 is engaged with the second transmission wheel 1714 through the second belt 1717. When it is necessary to lift the filter member 140, control the driving wheel 1711 to rotate in the first direction (for example, clockwise). Through the engagement of the transmission wheels, belts and driven wheels, the two connecting rods 172 can be driven to rotate in opposite directions at the same time, and then the filter member 140 can be driven to lift; conversely, control the driving wheel 1711 to rotate in the second direction (for example, counterclockwise). Through the engagement of the transmission wheels, belts and driven wheels, the two connecting rods 172 can be driven to rotate in opposite directions at the same time, and then the filter member 140 can be driven to lower. With such a setting, one driving wheel 1711 can drive the two connecting rods 172 to rotate to drive the lifting and lowering of the filter member 140, and the operation is convenient and practical.

[0035] Combined with Figure 6 , in some embodiments, the driving wheel 1711 may be provided with a handle 1718, and the user can hold the handle to rotate the driving wheel 1711.

[0036] In other embodiments, equipment such as tower cranes can also be used to directly lift the filter element 140, and the present application does not limit this.

[0037] Figure 7 The structural schematic diagram of the spraying member 130 is shown. Combined with Figure 7 , in some embodiments, the spraying member 130 includes at least two spraying pipes 131. The middle parts of at least two spraying pipes 131 converge at one place, and both ends of at least two spraying pipes 131 extend outwards. Spraying holes are formed on each spraying pipe 131 to ensure the balance of the coolant sprayed by the spraying holes as much as possible and to ensure the spraying range. In other embodiments, the spraying member 130 can also be a block structure, and a plurality of grid-shaped spraying holes are provided on the spraying member 130, which can also make the spraying holes spray the coolant evenly. The present application does not limit this In some embodiments, a thermostat (not shown in the figure) is built in the first cooling pool 110, and the thermostat is linked with the first valve body 154 and the second valve body 155. The thermostat is used to determine the real-time temperature of the coolant in the first cooling pool 110 and compare it with the set temperature, so as to control the actions of the first valve body 154 and the second valve body 155 according to the comparison result of the real-time temperature and the set temperature. Both the first valve body 154 and the second valve body 155 can be electric control valves so that they can receive the instructions of the thermostat and act automatically. In other embodiments, the thermostat can also display the monitored real-time temperature to an external terminal, and the operator can monitor the real-time temperature in real time and actively control the actions of the first valve body 154 and the second valve body 155 according to the real-time temperature.

[0038] Figure 8 The structural schematic diagram of the second cooling pool 120 is shown. Combined with Figure 8 , the structure of the second cooling pool 120 is similar to that of the first cooling pool 110. The main difference is that the second cooling pool 120 is arranged on the ground and has a certain height difference from the first cooling pool 110, so that the coolant in the second cooling pool 120 can automatically flow to the first cooling pool 110 under the action of gravity.

[0039] Combined with Figure 8, the top of the second cooling pool 120 can also be open, and a filter screen 121 is provided on its top to prevent mosquitoes, dirt, etc. from entering the second cooling pool 120; in addition, if the temperature in the first cooling pool 110 remains high, coolant with a lower temperature can be directly poured into the first cooling pool 110 through the opening of the second cooling pool 120. Moreover, the second cooling pool 120 can be located outdoors to utilize the temperature of the coolant in the second cooling pool 120. Under the condition that the second cooling pool 120 is located outdoors, a sunshade can be arranged above the second cooling pool 120 to prevent rain and other sundries from entering the second cooling pool 120.

[0040] Combined with Figure 1 , in some embodiments, a third valve body 161 is provided on the connecting pipe 160. The third valve body 161 can be normally open. As long as there is a certain height of coolant in the second cooling pool 120, it can be transported to the first cooling pool 110 through the connecting pipe 160; the third valve body 161 can also be a solenoid valve linked with a thermostat. When the thermostat confirms that the real-time temperature is higher than the set temperature, the first valve body 154, the second valve body 155, and the third valve body 161 are all opened to cool the steel forging by means of external circulation.

[0041] Combined with Figure 1 , in some embodiments, a second pump body 180 is provided on the connecting pipe 160, that is, the coolant in the second cooling pool 120 can be transported to the first cooling pool 110 in a pumping manner. The second pump body 180 is linked with a thermostat. When the thermostat confirms that the real-time temperature is higher than the set temperature, the first valve body 154, the second valve body 155, and the third valve body 161 are all opened, and the second pump body 180 is started, and then the steel forging is cooled by means of external circulation.

[0042] This application also provides a quenching cooling system 10b. Figure 9 shows a schematic structural diagram of the quenching cooling system 10b, Figure 10 shows a schematic structural diagram of the third valve body 161. Combined with Figure 9 and Figure 10, the difference between the quenching cooling system 10b and the quenching cooling system 10a is that: the third valve body 161 of the quenching cooling system 10b is a ball valve, the operating rod 162 of the ball valve is connected to the floating ball 164 through the second flexible member 163, at least part of the second flexible member 163 is flexible, and the floating ball 164 is located in the first cooling pool 110. When the temperature in the first cooling pool 110 exceeds the set temperature, the density of the coolant in the first cooling pool 110 decreases, and the floating ball 164 drops, so as to drive the operating rod 162 to rotate through the second flexible member 163, open the third valve body 161, and then realize the automatic opening of the connecting pipe 160 to cool the steel forging by means of external circulation. When the temperature in the first cooling pool 110 is lower than the set temperature, the density of the coolant in the first cooling pool 110 increases, and the floating ball 164 rises, so as to drive the operating rod 162 to rotate through the second flexible member 163, close the third valve body 161, and then realize the automatic opening of the connecting pipe 160 to cool the steel forging by means of external circulation. With such a setting, the third valve body 161 can be opened according to the real-time temperature in the first cooling pool 110, and the opening degree of the third valve body 161 can be changed according to the real-time temperature in the first cooling pool 110 to adapt to the cooling effect of the steel forging in the first cooling pool 110. Specifically, a communication hole is provided on the side wall of the first cooling pool 110, an elastic seal is arranged in the communication hole, the middle part of the second flexible member 163 is a rigid structure, the middle part of the second flexible member 163 can reciprocate sealingly in the communication hole, and both ends of the second flexible member 163 are flexible ropes so as to move correspondingly under the drive of the floating ball 164 and drive the operating rod 162 of the third valve body 161 to act.

[0043] It should be noted that the quenching cooling system 10b can also have a second pump body 180, that is, the quenching cooling system 10b can have both the second pump body 180 and the third valve body 161 which is a ball valve at the same time.

[0044] The present application also provides a quenching cooling system 10c. Figure 11 The structural schematic diagram of the quenching cooling system 10c is shown, in combination with Figure 11, the difference between the quenching cooling system 10c and the quenching cooling systems 10a and 10b is that: the quenching cooling system 10c further includes an intermediate cooling pool 190, the intermediate cooling pool 190 is arranged between the first cooling pool 110 and the second cooling pool 120, the intermediate cooling pool 190 is communicated with the second output end of the first pump body 150 through a third pipeline 154, the intermediate cooling pool 190 is communicated with the second cooling pool 120 through a fourth pipeline 191, and a fourth valve body 192 is arranged on the fourth pipeline 191. During specific implementation, when the real-time temperature in the first cooling pool 110 is greater than the set temperature, the first pump body 150 transports the coolant in the first cooling pool 110 to the intermediate water pool through the third pipeline 154 for temporary storage. When the coolant in the intermediate water pool drops to a suitable temperature, the fourth valve body 192 is a solenoid valve that can be linked with a thermostat, and the fourth valve body 192 is opened to transport the coolant in the intermediate water pool to the second cooling pool 120, and the second cooling pool 120 stores coolant with a suitable temperature. With such a setting, when the temperature in the first cooling pool 110 rises sharply (for example, the temperature of the steel forging is extremely high), the second cooling pool 120 can quickly supplement the coolant with a suitable temperature to the first cooling pool 110 to ensure the cooling efficiency of the steel forging.

[0045] In some embodiments, the intermediate cooling pool 190 and the second cooling pool 120 may have a height difference, so that the coolant in the intermediate cooling pool 190 can automatically flow to the second cooling pool 120 under the action of gravity. In other embodiments, the cold region in the intermediate cooling pool 190 can also be transported to the second cooling pool 120 by means of pumping, and the present application does not limit this.

[0046] Based on the above quenching cooling method, in the second aspect of the present application, the present application further provides a quenching cooling method. Figure 12 The flow schematic diagram of the quenching cooling method is shown. In combination with Figure 12 , this quenching cooling method includes: Obtain the real-time temperature in the first cooling pool 110, which can be obtained by a thermostat arranged in the first cooling pool 110; Compare the real-time temperature with the set temperature, that is, confirm whether the real-time temperature is less than the set temperature. The set temperature can be determined according to the type of the steel forging. For example, it can be 50°, or it can be 40°, 30°, etc. The present application does not limit this; If the real-time temperature is less than the set temperature, control the first valve body 154 to open, the second valve body 155 to close, and the first pump body 150 to transport the coolant in the first cooling pool 110 to the spraying member 130 through the second pipeline 152 to cool the steel forging in an internal circulation form; If the real-time temperature is less than the set temperature, control the second valve body 155 to open and the first valve body 154 to close. The first pump body 150 transports the coolant in the first cooling pool 110 to the second cooling pool 120 through the third pipeline 154 to cool down the steel forging in the form of external circulation.

[0047] As can be seen from the above, the quenching cooling system and the quenching cooling method for heat treatment provided by this application cool down the steel forging by spraying the coolant. Thus, accessories such as motors, impellers, and bearings in the related art can be eliminated, the maintenance work of the cooling device can be reduced, the coolant in the first cooling pool can be evenly cooled, and the delivery method of the spraying liquid can be adjusted in real time according to the real-time temperature in the first cooling pool to ensure the cooling effect and efficiency of the steel forging, which has good practicability.

[0048] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0049] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to this application.

[0050] In this application, unless otherwise clearly specified and defined, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0051] In addition, in this application, descriptions such as "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, "a plurality" means two or more unless otherwise specifically defined.

[0052] Although the embodiments of this application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this application. The scope of this application is defined by the claims and their equivalents.

Claims

1. A quenching and cooling system for heat treatment, characterized in that, The cooling system includes a first cooling pool with an input port opened at the top; a second cooling pool, arranged at an interval from the first cooling pool; a spraying member, disposed inside the first cooling pool, and the spraying member is provided with a plurality of nozzles; a filtering member, disposed inside the first cooling pool and located above the spraying member; a first pump body, arranged outside the first cooling pool, the first pump body has an input end, a first output end and a second output end, the input end is communicated with a first pipeline, and the first pipeline extends into the first cooling pool; the first output end is communicated with a second pipeline, and the second pipeline extends into the first cooling pool and is communicated with the spraying member, and a first valve body is arranged on the second pipeline; the second output end is communicated with the second cooling pool through a third pipeline, and a second valve body is arranged on the third pipeline; a connecting pipeline, having a first end and a second end, the first end is communicated with the second cooling pool, the second end penetrates through the first cooling pool and is connected with the spraying member.

2. The quenching and cooling system for heat treatment according to claim 1, wherein A temperature controller is disposed inside the first cooling pool, and the temperature controller is linked with the first valve body and the second valve body.

3. A quenching and cooling system for heat treatment according to claim 1, wherein, The filtering member is disposed in the first cooling pool in a liftable manner.

4. A quenching and cooling system for heat treatment according to claim 3, characterized in that, The quenching cooling system for heat treatment further includes a lifting assembly, and the lifting assembly includes: a driving member, connected to the side wall of the first cooling pool; two connecting rods, both spanning across the first cooling pool, two ends of each connecting rod are respectively rotatably connected to two opposite side walls of the first cooling pool, and an end of each connecting rod is connected with a first flexible member in a retractable manner, and the other end of the first flexible member is connected with the filtering member.

5. A quenching and cooling system for heat treatment according to claim 4, characterized in that, The driving member includes: a driving wheel, rotatably connected to the outer side wall of the first cooling pool; a first driving wheel, meshed with the driving wheel; a first driven wheel, connected to an end of one of the connecting rods protruding out of the first cooling pool, and the first driven wheel is meshed with the first driving wheel through a first belt; a second driving wheel, meshed with the driving wheel; a second driven wheel, connected to an end of the other connecting rod protruding out of the first cooling pool, and the second driven wheel is meshed with the second driving wheel through a second belt.

6. A quenching and cooling system for heat treatment according to any one of claims 1-5, characterized in that, A third valve body is arranged on the connecting pipeline.

7. A quenching and cooling system for heat treatment according to claim 6, characterized in that, A second pump body is arranged on the connecting pipeline; or / and, the third valve body is a ball valve, an operating rod of the ball valve is connected with a floating ball through a second flexible member, at least part of the second flexible member has flexibility, and the floating ball is located inside the first cooling pool.

8. A quenching and cooling system for heat treatment according to any one of claims 1-5, characterized in that, The cooling system further includes an intermediate cooling pool, the intermediate cooling pool is arranged between the first cooling pool and the second cooling pool, the intermediate cooling pool is communicated with the second output end of the first pump body through the third pipeline, and the intermediate cooling pool is communicated with the second cooling pool through a fourth pipeline, and a fourth valve body is arranged on the fourth pipeline.

9. A quenching and cooling system for heat treatment according to any one of claims 1-5, characterized in that, The first cooling pool is disposed in the ground, and a sand layer is arranged around the first cooling pool.

10. A quenching and cooling method, characterized in that, The quenching cooling method includes: acquiring the real-time temperature inside the first cooling pool; comparing the real-time temperature with the set temperature; If the real-time temperature is less than the set temperature, control the first valve body to open, the second valve body to close, and the first pump to transport the coolant in the first cooling pool to the spraying member through the second pipeline; If the real-time temperature is less than the set temperature, control the second valve body to open, the first valve body to close, and the first pump to transport the coolant in the first cooling pool to the second cooling pool through the third pipeline and then to the spraying member through the fourth pipeline.

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