Quenching cooling pool capable of rapidly cooling

Abstract

The invention relates to a quenching cooling pool capable of rapidly cooling, which belongs to the technical field of heat treatment, is used for quenching and cooling steel for fasteners in the fields of automobiles, wind power and the like, and comprises a water return hole formed in an isolation plate, a motor fixedly mounted on angle steel placed on a pool body, a power shaft with a jack at the lower end, and a bevel gear set connected with the motor and the power shaft, the rotating wheel I, the rotating wheel II, the rotating wheel III and the rotating wheel IV are arranged outside the rotating wheel I, the rotating wheel II, the rotating wheel III and the rotating wheel IV, the number and the size of blades arranged outside the rotating wheel I, the rotating wheel II, the rotating wheel III and the rotating wheel IV are different, and the number and the size of the blades arranged outside the rotating wheel I, the rotating wheel II, the rotating wheel III and the rotating wheel IV are sequentially reduced from top to bottom. Water at different levels is driven to present different flow speeds; according to the water temperature rising speed of different water layers, different flow speeds are adopted for different water layers to cool steel, at the moment, the steel can be rapidly cooled and quenched, and compared with the working mode that water of different layers flows at the same speed, more energy can be saved.

Description

Technical Field

[0001] The present invention relates to the technical field of heat treatment, and particularly relates to a quenching cooling pool with rapid cooling. Background Art

[0002] In current industrial production, the quenching cooling pool is a key equipment for heat treatment of fastener steel in fields such as automobiles and wind power. Its cooling efficiency directly affects the quality and performance of products. In order to achieve rapid cooling, the existing quenching cooling pools generally adopt a relatively direct method - continuously stirring the water in the pool. By stirring, it aims to accelerate the flow of water, thereby enhancing the heat exchange between water and high-temperature fastener steel, ensuring that the steel can be quickly and evenly cooled to the required temperature to meet the requirements of subsequent processing or use.

[0003] However, the existing stirring methods often adopt a single-speed mode and cannot be flexibly adjusted according to the actual temperature conditions of different water layers in the quenching cooling pool. In fact, during the quenching process, due to the high temperature of the steel, obvious temperature gradients will appear in water layers at different depths. If the same stirring speed is adopted, the mixing between the high-temperature water layer and the low-temperature water layer will be insufficient, resulting in uneven temperature distribution in the cooling pool. This temperature non-uniformity will not only affect the quenching effect of the steel, causing fluctuations in key performance indicators such as the hardness and toughness of the steel, but also may lead to serious quality problems such as quenching cracks, thereby reducing production efficiency and product qualification rate. Summary of the Invention

[0004] In view of the above problems, the present invention provides a quenching cooling pool with rapid cooling to solve the problem of uneven temperature distribution in the cooling pool caused by stirring different water layers at the same speed.

[0005] The technical solution adopted by the present invention is: a quenching cooling pool with rapid cooling, used for quenching and cooling fastener steel in fields such as automobiles and wind power, including a main frame, an internal water circulation mechanism, an external water circulation mechanism, a water spraying and cooling mechanism, and other mechanisms; the main frame includes a pool body, and the pool body is divided into several parts such as a cooling partition, a water exchange partition, and a water storage partition according to different functions, as well as a partition board for separating the water storage partition from other parts; The internal water circulation mechanism includes a return water hole provided on the partition board, a motor fixedly installed on an angle steel placed on the pool body, a power shaft with a socket at the lower end, a bevel gear set connecting the motor and the power shaft, and rotating wheels I, II, III, and IV with different numbers and sizes of blades arranged outside, and the number and size of the blades decrease successively from top to bottom.

[0006] Preferably, jacks are provided below the power shaft, the first rotating wheel, the second rotating wheel, the third rotating wheel, and the fourth rotating wheel. At the same time, clamping blocks for fixing are provided in the jacks for mutual connection.

[0007] Preferably, the external water circulation mechanism includes a refrigerator provided on the outer side of the pool body, a drain head jack provided on the side of the pool body, a drain head inserted into the drain head jack, and a circulation water pipe connecting the refrigerator and the drain head.

[0008] Preferably, the circulation water pipe discharges the hot water in the pool body, and uses this hot water to supply heat to other devices. At the same time, the circulation water pipe discharges the water after using the waste heat to the refrigerator for cooling.

[0009] Preferably, the position where the drain head enters the pool body is triangular, and holes for discharging the water at the water exchange partition position are opened at one side of the triangle.

[0010] Preferably, the water spraying and cooling mechanism includes a water pump fixed on the angle steel placed on the pool body, a water distributor connected to the pipeline at the water outlet of the water pump, a nozzle rack connected to the water distributor, and a plurality of nozzles provided on the inner wall of the nozzle rack.

[0011] Preferably, the other mechanism includes a slot provided in the pool body, a filter box slidably installed in the slot, and an isolation plug board that slidably installs in the chute provided between the pool body and the isolation board and isolates the filter box from the cooling partition.

[0012] Advantages of the present invention: 1. The number and size of the blades provided outside the first rotating wheel, the second rotating wheel, the third rotating wheel, and the fourth rotating wheel are different, and decrease in turn from top to bottom. When the first rotating wheel, the second rotating wheel, the third rotating wheel, and the fourth rotating wheel rotate, they drive the water at different levels to show different flow rates; according to the rising speed of the water temperature in different water layers, different flow rates are used for cooling different water layers. At this time, the steel can be quickly cooled and quenched, and compared with the working method of the same speed of water flow in different water layers, this method can save more energy; 2. When the steel passes through the position of the nozzle, the nozzle sprays water to cool the steel. After being cooled by spraying water, the steel enters the cooling partition position in the pool body and is immersed in the water placed in the cooling partition for quenching and cooling. The steel after being cooled by spraying water is easier to be quenched and cooled; 3. The circulation water pipe discharges the hot water in the pool body, and uses this hot water to supply heat to other devices. For example, flowing this hot water into the radiator to supply heat to the factory in winter can reduce the factory's demand for heating, make use of the waste heat, improve the utilization rate of energy, and prevent a large amount of energy waste. Description of the Drawings

[0013] Figure 1 Schematic diagram of the first angle of the overall structure of the present invention.

[0014] Figure 2 Schematic diagram of the second angle of the overall structure of the present invention.

[0015] Figure 3 Schematic diagram of the structure of the external water circulation mechanism of the present invention.

[0016] Figure 4 Schematic diagram of the structure of the main frame and the water spraying and cooling mechanism of the present invention.

[0017] Figure 5 For the present invention Figure 4 Schematic diagram of the enlarged partial structure at A1 in

[0018] Figure 6 Schematic diagram of the structure of the pool body and other mechanisms of the present invention.

[0019] Figure 7 Schematic diagram of the structure of the filter box of the present invention.

[0020] Figure 8 Schematic diagram of the installation position of the internal water circulation mechanism of the present invention.

[0021] Figure 9 Schematic diagram of the structure of the internal water circulation mechanism and the drain head of the present invention.

[0022] Figure 10 Schematic diagram of the structure of the internal water circulation mechanism of the present invention.

[0023] Figure 11 For the present invention Figure 10 Schematic diagram of the sectional structure of

[0024] Reference numerals in the drawings: 1, pool body; 2, cooling partition; 3, water exchange partition; 4, water storage partition; 5, refrigerating machine; 6, circulating water pipe; 7, drain head; 8, water pump; 9, water distributor; 10, nozzle holder; 11, nozzle; 12, slot; 13, drain head jack; 14, partition board; 15, return water hole; 16, partition plug board; 17, filter box; 18, motor; 19, bevel gear set; 20, power shaft; 21, rotating wheel I; 22, rotating wheel II; 23, rotating wheel III; 24, rotating wheel IV. Detailed implementation manners

[0025] The technical solution of the present invention will be further specifically described below through embodiments in conjunction with the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0026] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of simplifying the description of the present invention, 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 cannot be understood as a limitation to the present invention. In addition, in order to facilitate the description, spatial relative terms can be used in the text, for example, "below", "beneath", "under", "above", "over", etc., to describe the relationship of one element or feature relative to other elements or features as shown in the drawings. The spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation shown in the drawings. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatial relative descriptive words used in the text can be similarly interpreted accordingly. It should be noted that in this text, some connection methods, such as "fixed connection, fixed installation", refer to including but not limited to the fixation of two components, such as welding, screw and nut fixation, adhesion, riveting, interference fit, etc. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood through specific circumstances.

[0027] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0028] As shown in the embodiments Figures 1 - 11 A quenching cooling pool for rapid cooling, which is used to quench and cool the steel for fasteners in fields such as automobiles and wind power, includes a main frame, an internal water circulation mechanism, an external water circulation mechanism, a water spraying and cooling mechanism, and other mechanisms.

[0029] As shown in the embodiments Figure 1 and Figure 2As shown in the figure, the main body frame includes: a pool body 1, a cooling partition 2, a water exchange partition 3, a water storage partition 4, and a partition board 14; the pool body 1 is divided into several parts, namely the cooling partition 2, the water exchange partition 3, and the water storage partition 4 according to different functions to achieve different functions. The cooling partition 2 is used for quenching and cooling the steel for fasteners in fields such as automobiles and wind power. The water exchange partition 3 is used to place the internal water circulation mechanism. The water storage partition 4 is used to store cooling water and supply cooling water to the water spraying and cooling mechanism and the cooling partition 2; the partition board 14 is used to separate the water storage partition 4 from other parts, and at the same time, it also has the function of heat insulation to prevent the water level at the position of the cooling partition 2 from rising during the cooling process and heating the water in the water storage partition 4; the partition board 14 is fixedly installed inside the pool body 1.

[0030] As shown in the embodiment Figure 6 , Figures 8 - 11 As shown in the figure, the internal water circulation mechanism includes: a return water hole 15, a motor 18, a bevel gear set 19, a power shaft 20, a rotating wheel I 21, a rotating wheel II 22, a rotating wheel III 23, and a rotating wheel IV 24; the return water hole 15 is arranged on the partition board 14, and at the same time, the return water hole 15 is arranged at the position of the water exchange partition 3 to discharge the cooling water in the water storage partition 4 to the position of the water exchange partition 3; the motor 18 is fixedly installed on the angle steel placed on the pool body 1; the bevel gear set 19 includes two bevel gears that mesh with each other. One bevel gear is fixedly connected to the shaft of the motor 18, and the other bevel gear is fixedly connected to the power shaft 20; the power shaft 20 is arranged between two angle steels placed on the pool body 1 and is rotatably connected to the angle steel; a jack is provided at the lower end of the power shaft 20, and at the same time, a clamping block for fixing is provided in the jack. The rotating wheel I 21 is inserted into the jack provided at the lower end of the power shaft 20 and is connected to the power shaft 20 through the clamping block; at the same time, a jack is provided at the lower end of the rotating wheel I 21, and a clamping block for fixing is provided in the jack; the rotating wheel II 22 is inserted into the jack provided at the lower end of the rotating wheel I 21 and is connected to the rotating wheel I 21 through the clamping block; at the same time, a jack is provided at the lower end of the rotating wheel II 22, and a clamping block for fixing is provided in the jack; the rotating wheel III 23 is inserted into the jack provided at the lower end of the rotating wheel II 22 and is connected to the rotating wheel II 22 through the clamping block; at the same time, a jack is provided at the lower end of the rotating wheel III 23, and a clamping block for fixing is provided in the jack; the rotating wheel IV 24 is inserted into the jack provided at the lower end of the rotating wheel III 23 and is connected to the rotating wheel III 23 through the clamping block; and the number and size of the blades provided outside the rotating wheel I 21, the rotating wheel II 22, the rotating wheel III 23, and the rotating wheel IV 24 are different, and decrease sequentially from top to bottom. Then, when the rotating wheel I 21, the rotating wheel II 22, the rotating wheel III 23, and the rotating wheel IV 24 rotate, the water at different levels shows different flow rates.

[0031] As shown in the embodiment Figure 3As shown in the figure, the external water circulation mechanism includes: a refrigerator 5, a circulating water pipe 6, a drain head 7, and a drain head socket 13; the refrigerator 5 is arranged outside the pool body 1, and at the same time, a pipeline connected to the pool body 1 is provided under the refrigerator 5 for transporting the cooled cooling water of the refrigerator 5 to the water storage area 4 in the pool body 1 for storage; the circulating water pipe 6 connects the refrigerator 5 and the drain head 7, and the circulating water pipe 6 discharges the hot water in the pool body 1 and uses this hot water to supply heat to other devices. For example, flowing this hot water into the radiator to supply heat to the factory in winter can reduce the factory's demand for heating. At the same time, the circulating water pipe 6 facilitates the discharge of the water after using the waste heat to the refrigerator 5 for cooling; the drain head 7 is inserted into the drain head socket 13, and the position where the drain head 7 enters the pool body 1 is triangular, and there are holes on one side of the triangle for discharging the water in the water exchange area 3. The drain head socket 13 is arranged on the side of the pool body 1 and is located at the position of the water exchange area 3.

[0032] As shown in the embodiment Figure 4 、 Figure 5 As shown in the figure, the water spraying and cooling mechanism includes: a water pump 8, a water distributor 9, a nozzle holder 10, and nozzles 11; the water pump 8 is fixedly installed on the angle steel placed on the pool body 1. At the same time, a pipeline is connected to the water inlet of the water pump 8, and the pipeline enters the water in the water storage area 4. A pipeline is connected to the water outlet position of the water pump 8, and this pipeline is connected to the water distributor 9; the water distributor 9 is fixedly installed on the angle steel placed on the pool body 1. The water distributor 9 divides the water transported by the water pump 8 and transports it to the nozzle holder 10; the nozzle holder 10 is a ring-shaped rectangle, and there are multiple nozzles 11 on the inner wall; the nozzle holder 10 is fixedly installed on the angle steel placed on the pool body 1; the nozzles 11 spray the water in the nozzle holder 10 to spray water for cooling the fastener steel used in fields such as automobiles and wind power after high-temperature casting.

[0033] As shown in the embodiment Figures 6 - 8 As shown in the figure, the other mechanism includes: a slot 12, an isolation plug board 16, and a filter box 17; the slot 12 is arranged in the pool body 1 for installing the filter box 17, and at the same time, the slot 12 is located in the middle of the cooling area 2 and the water exchange area 3; the filter box 17 is slidably installed in the slot 12. The filter box 17 is used to block the slag and leave the slag on the filter box 17. As the filter box 17 is taken out, the slag is taken out; the isolation plug board 16 is slidably installed in the chute provided by the pool body 1 and the isolation board 14. The isolation plug board 16 is on the side of the filter box 17 facing the cooling area 2 and is at a certain distance from the filter box 17; when the filter box 17 needs to be taken out, the isolation plug board 16 is pressed down to isolate the filter box 17 from the cooling area 2 through the isolation plug board 16. At this time, the water in the cooling area 2 cannot flow through the filter box 17 into the water exchange area 3, which is convenient for taking out the filter box 17 and pouring out the slag.

[0034] Working principle: This device is used in the quenching process of the casting industry. When the steel for fasteners in fields such as automobiles and wind power needs to be cooled and quenched after casting, the steel is transported to the position of the cooling zone 2, and then the steel is lowered. When the steel passes through the position of the nozzle 11, the nozzle 11 sprays water to cool the steel. After being spray-cooled, the steel enters the position of the cooling zone 2 in the pool body 1 and is immersed in the water placed in the cooling zone 2 for quenching cooling. The steel after being spray-cooled is more likely to be quenched and cooled; When the steel is immersed in the water at the position of the cooling zone 2, the motor 18 starts to drive the bevel gear set 19, and then drives the power shaft 20, thereby driving the rotating wheel Ⅰ21, rotating wheel Ⅱ22, rotating wheel Ⅲ23, and rotating wheel Ⅳ24 to rotate. During the rotation of the rotating wheel Ⅰ21, rotating wheel Ⅱ22, rotating wheel Ⅲ23, and rotating wheel Ⅳ24, the water at the position of the cooling zone 2 is flowed into the water-changing zone 3 through the filter box 17 by the rotating wheel Ⅰ21, rotating wheel Ⅱ22, rotating wheel Ⅲ23, and rotating wheel Ⅳ24. Then, the water heated by the steel enters the drain head 7 through the holes provided on one side of the drain head 7, and then flows into the refrigerator 5 through the circulating water pipe 6 for cooling and then flows into the water storage zone 4; at the same time, during the rotation of the rotating wheel Ⅰ21, rotating wheel Ⅱ22, rotating wheel Ⅲ23, and rotating wheel Ⅳ24, water is drained out of the pool body 1 through the drain head 7, and the cooling water stored at the position of the water storage zone 4 also flows to the position of the water-changing zone 3 through the partition plate 14, and then flows back to the position of the cooling zone 2 to replace the water heated by the steel in the cooling zone 2; Moreover, the number and size of the blades provided outside the rotating wheel Ⅰ21, rotating wheel Ⅱ22, rotating wheel Ⅲ23, and rotating wheel Ⅳ24 are different, decreasing in sequence from top to bottom. Then, when the rotating wheel Ⅰ21, rotating wheel Ⅱ22, rotating wheel Ⅲ23, and rotating wheel Ⅳ24 rotate, the water at different levels presents different flow velocities. The water at the upper level has a longer contact time with the steel, and the water temperature rises faster. The water at this level is made to flow rapidly. The water at the middle and lower levels has a longer contact time with the steel, and the water temperature at this level rises slower. The water at this level does not need to flow rapidly; According to the rising speed of the water temperature of different water layers, different flow velocities are adopted for different water layers to cool down. At this time, the steel can be rapidly cooled and quenched, and this working method can save more energy compared with the working method of the same flow velocity of water at different levels; Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fast cooling quenching cooling pool, used for quenching and cooling steel for fasteners in the fields of automobiles, wind power, etc., comprising a main frame, an internal water circulation mechanism, an external water circulation mechanism, a water spray cooling mechanism and other mechanisms; characterized in that: The main frame comprises a tank body (1), wherein the tank body (1) is divided into a cooling partition (2), a water exchange partition (3) and a water storage partition (4) according to different functions, and a partition plate (14) for separating the water storage partition (4) from other parts; The internal water circulation mechanism comprises a water return hole (15) provided on the isolation plate (14), a motor (18) fixedly mounted on an angle steel placed on the pool body (1), a power shaft (20) with a socket at the lower end, a bevel gear set (19) connecting the motor (18) and the power shaft (20), and a rotating wheel I (21), a rotating wheel II (22), a rotating wheel III (23) and a rotating wheel IV (24) provided on the outside with different numbers of blades, which decrease in size from top to bottom.

2. A rapid cooling quenching cooling pool according to claim 1, characterized in that: The power shaft (20), rotating wheel I (21), rotating wheel II (22), rotating wheel III (23) and rotating wheel IV (24) are all provided with plug holes, and fixing blocks are provided in the plug holes for connecting them to each other.

3. A rapid cooling quenching cooling pool according to claim 1, characterized in that: The external water circulation mechanism comprises a refrigerator (5) arranged outside the pool body (1), a drain head socket (13) arranged on the side of the pool body (1), a drain head (7) inserted into the drain head socket (13), and a circulating water pipe (6) connecting the refrigerator (5) and the drain head (7).

4. A rapid cooling quenching cooling pool according to claim 3, characterized in that: The circulating water pipe (6) discharges the hot water in the pool body (1) and uses the hot water to supply heat to other devices. At the same time, the circulating water pipe (6) discharges the water with waste heat to the refrigerator (5) for cooling.

5. A rapid cooling quenching cooling pool according to claim 3, characterized in that: The position where the drainage head (7) enters the pool body (1) is triangular, and a hole for draining water from the water exchange partition (3) is provided at one side of the triangle.

6. A rapid cooling quenching cooling pool according to claim 1, characterized in that: The water spray cooling mechanism comprises a water pump (8) fixedly mounted on an angle steel body (1) and placed on the pool body (1), a water distributor (9) connected to a pipe provided at a water outlet of the water pump (8), a nozzle rack (10) connected to the water distributor (9), and a plurality of nozzles (11) arranged on the inner wall of the nozzle rack (10).

7. A rapid cooling quenching cooling pool according to claim 1, characterized in that: The other mechanism comprises a slot (12) disposed in the pool body (1), a filter box (17) slidably mounted in the slot (12), and an isolation plug plate (16) slidably mounted in a slide groove provided between the pool body (1) and the isolation plate (14) for isolating the filter box (17) from the cooling partition (2).

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