Annealing device capable of rapidly cooling for iron core production

Abstract

The utility model discloses an annealing device capable of rapidly cooling for iron core production, which comprises an annealing furnace, a cooling device is arranged on the annealing furnace, the cooling device comprises a water circulation device and a gas circulation device, and the gas circulation device circularly cools high-temperature gas in the annealing furnace. The water circulation device is used for exchanging heat with the gas circulation device to reduce the temperature of gas in the gas circulation device. A first turbulent flow ring and a second turbulent flow ring are arranged in the bent gas pipe, so that gas close to the pipe wall and gas in the middle of the treatment pipe can be effectively and fully mixed, and the cooling effect and the cooling efficiency are improved. The radiating fins are arranged to be of a sheet structure with a plurality of circular ring rows, compared with a traditional whole radiating fin, flowing of cooling water is better facilitated, it is guaranteed that high-temperature water can flow away rapidly, meanwhile, the sawtooth-shaped protrusions and the through holes are arranged, the heat exchange area and the flowing area of cold water flow are further increased, and the heat exchange efficiency is improved. And the heat exchange efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer core production, in particular to an annealing device for core production that can quickly cool down. Background Technique

[0002] The structural design of the amorphous three-dimensional wound core is innovative and efficient. Its core structure is mainly made of amorphous alloy strips through a winding process to form a unique three-dimensional wound structure. This structure not only has no seams, but also has a balanced three-phase magnetic circuit, which helps to achieve efficient electromagnetic conversion.

[0003] During its production process, an annealing furnace needs to be used to heat-treat the wound core to improve its physical and mechanical properties. However, after annealing, the core needs to be taken out of the annealing furnace and cooled down. However, the internal temperature of the annealing furnace just after treating the core is very high, and there will be certain risks if the core is taken out at this time. Therefore, it is necessary to wait until the internal temperature drops to a temperature acceptable to the human body before the core can be taken out. However, due to the lack of an effective cooling device in the annealing furnace, the self-cooling speed is very slow, resulting in excessive waiting waste. Summary of the Invention

[0004] (1) Technical Problems to be Solved

[0005] The technical problem to be solved by the utility model is that in the prior art, after annealing, the internal temperature of the annealing furnace is relatively high, and it needs to be reduced to a suitable temperature before workers can safely take out the core. However, the heat dissipation efficiency of the annealing furnace in the prior art is relatively low, resulting in a long time required for heat dissipation.

[0006] (2) Technical Solutions

[0007] To solve the above problems, the utility model provides the following technical solutions:

[0008] An annealing device for core production that can quickly cool down, including an annealing furnace. A cooling device is further provided on the annealing furnace. The cooling device includes a water circulation device and an air circulation device. The air circulation device circulates and cools the high-temperature gas in the annealing furnace. The water circulation device is used for heat exchange with the air circulation device to reduce the temperature of the gas in the air circulation device;

[0009] The water circulation device includes a circulation water tank, an upper water pipe and a lower water pipe. The upper water pipe is arranged on the upper part of the circulation water tank. The lower water pipe is arranged on the upper part of the side of the circulation water tank. And the upper water pipe is connected to an external cooling tower to provide water source by the cooling tower. The lower water pipe is connected to the water inlet of the external cooling tower;

[0010] The air circulation device includes an intake pipe, an exhaust pipe, an upper shunt chamber, a lower shunt chamber, a bent air pipe, a suction fan, and heat dissipation fins. The bent air pipe is provided with a plurality of linear arrays arranged inside the circulation water tank and is connected to the circulation water tank through a fixing frame. One end of multiple groups of the bent air pipes is connected to the upper shunt chamber, and the other end is connected to the lower shunt chamber. One end of the intake pipe penetrates the outer wall of the annealing furnace and extends into its interior, and the other end is connected to the upper shunt chamber. One end of the exhaust pipe is connected to the air outlet of the suction fan, and the air inlet of the suction fan is connected to the inner cavity of the annealing furnace through a trachea. The other end of the exhaust pipe is connected to the lower shunt chamber. Valves are provided on both the intake pipe and the exhaust pipe, and a first flow disturbance ring and a second flow disturbance ring are also provided on the bent air pipe;

[0011] Both the first flow disturbance ring and the second flow disturbance ring are fixedly arranged on the bent air pipe. Flow disturbance surfaces are provided on both sides of the first flow disturbance ring. The second flow disturbance ring is provided with flow disturbance blocks and fixing bars. Both ends of the flow disturbance blocks are in a structure similar to a conical shape. One end of the fixing bar is connected to the flow disturbance block, and the other end is connected to the inner wall of the second flow disturbance ring;

[0012] A plurality of the heat dissipation fins are also provided on the outer wall of the bent air pipe. The heat dissipation fins are in a circular sheet-like structure, and through holes are also provided on the heat dissipation fins.

[0013] Furthermore, a cold air shunt box connected to the intake pipe is also provided at the top of the inner cavity of the annealing furnace, and the upper end face of the cold air shunt box is fixedly connected to the annealing furnace.

[0014] Furthermore, the cold air shunt box has a hollow interior structure, and a plurality of shunt holes are provided on the lower end face of the cold air shunt box (3).

[0015] Furthermore, the flow disturbance surface provided on the first flow disturbance ring is one of an arc surface and an inclined plane.

[0016] Furthermore, the axis line of the flow disturbance block is collinear with the axis line of the bent air pipe.

[0017] Furthermore, a plurality of the through holes are provided and evenly arranged on the heat dissipation fins.

[0018] Furthermore, serrated protrusions are provided on the heat dissipation fins.

[0019] (III) Beneficial effects

[0020] The beneficial effects of the present utility model are as follows:

[0021] 1: The gas with high temperature in the annealing furnace is pumped into the gas circulation device by an exhaust fan for cooling, which has higher efficiency than traditional natural cooling.

[0022] 2: The first spoiler ring and the second spoiler ring arranged in the curved air pipe can effectively mix the gas near the pipe wall and the gas in the middle of the processing pipe more fully, thereby improving the cooling effect and efficiency.

[0023] 3: The heat dissipation fins are arranged in a plurality of circular sheet-like structures, which is more conducive to the flow of cooling water compared with traditional integral heat dissipation fins, ensuring that the water with high temperature can flow away quickly. At the same time, the serrated protrusions and through holes arranged further increase the heat exchange area and the flow area of the cold water flow, thereby improving the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a perspective view of the present utility model;

[0025] Figure 2 is a schematic structural view of the water circulation device of the present utility model;

[0026] Figure 3 is a schematic structural view of the cold air diversion box of the present utility model;

[0027] Figure 4 is a schematic structural view of the gas circulation device of the present utility model;

[0028] Figure 5 is a schematic diagram of the installation position of the gas circulation device of the present utility model;

[0029] Figure 6 is a cross-sectional view of the curved air pipe of the present utility model;

[0030] Figure 7 is Figure 6 the enlarged view at A in

[0031] Figure 8 is a schematic structural view of the first spoiler ring of the present utility model;

[0032] Figure 9 is a schematic structural view of the second spoiler ring of the present utility model;

[0033] Figure 10 is a schematic structural view of the heat dissipation fins of the present utility model.

[0034] Labels in the figure: 1 - annealing furnace, 2 - cooling device, 3 - cold air shunt box, 4 - shunt hole, 201 - water circulation device, 202 - air circulation device, 201a - circulation water tank, 201b - upper water pipe, 201c - lower water pipe, 202a - intake pipe, 202b - outlet pipe, 202c - upper shunt bin, 202d - lower shunt bin, 202e - bent air pipe, 202f - exhaust fan, 202g heat dissipation fins, 202h - fixing bracket, 202j - valve, 202k - first spoiler ring, 202s - second spoiler ring, 202m - spoiler surface, 202n - spoiler block, 202p - through hole, 202r - serrated protrusion, 202t - fixing strip. Detailed implementation mode

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0036] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention 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 therefore should not be construed as a limitation of the present invention.

[0037] Please refer to Figures 1-10 An annealing device for core production that can quickly cool down, as shown, includes an annealing furnace 1. A cooling device 2 is also provided on the annealing furnace 1. The cooling device 2 includes a water circulation device 201 and an air circulation device 202. The air circulation device 202 circulates and cools the high-temperature gas in the annealing furnace 1, and the water circulation device 201 is used to exchange heat with the air circulation device 202 to reduce the temperature of the gas in the air circulation device 202;

[0038] The water circulation device 201 includes a circulation water tank 201a, an upper water pipe 201b, and a lower water pipe 201c. The upper water pipe 201b is arranged at the upper part of the circulation water tank 201a, and the lower water pipe 201c is arranged at the upper part of the side of the circulation water tank 201a. The upper water pipe 201b is connected to an external cooling tower to supply water from the cooling tower. The lower water pipe 201c is connected to the water inlet of the external cooling tower. The cooled water provided by the external cooling tower enters the circulation water tank 201a through the upper water pipe 201b, exchanges heat with the air circulation device 202, and then flows out from the lower water pipe 201c arranged at the upper part of the side of the circulation water tank 201a and enters the cooling tower again for cooling.

[0039] The air circulation device 202 includes an intake pipe 202a, an exhaust pipe 202b, an upper shunt chamber 202c, a lower shunt chamber 202d, a bent air pipe 202e, a suction fan 202f, and heat dissipation fins 202g. The bent air pipe 202e is provided with a plurality of linear arrays arranged inside the circulation water tank 201a and is connected to the circulation water tank 201a through a fixing frame 202h. One end of multiple groups of bent air pipes 202e is connected to the upper shunt chamber 202c, and the other end is connected to the lower shunt chamber 202d. One end of the intake pipe 202a penetrates the outer wall of the annealing furnace 1 and extends to its interior, and the other end is connected to the upper shunt chamber 202c. One end of the exhaust pipe 202b is connected to the air outlet of the suction fan 202f, and the air inlet of the suction fan 202f is connected to the inner cavity of the annealing furnace 1 through a trachea. The other end of the exhaust pipe 202b is connected to the lower shunt chamber 202d. Valves 202j are provided on both the intake pipe 202a and the exhaust pipe 202b. The setting of the valves 202j ensures that the high-temperature gas in the annealing furnace 12 will not flow back into the cooling device 2 during the annealing process. A first flow disturbance ring 202k and a second flow disturbance ring 202s are also provided on the bent air pipe 202e.

[0040] The suction fan 202f extracts the high-temperature air in the annealing furnace 1 and sends it through the exhaust pipe 202b into the lower shunt chamber 202d, where it is shunted into multiple bent air pipes 202e for cooling. Then, the cooled air in the bent air pipe 202e enters the cold air shunt box 3 through the intake pipe 202a and is shunted into the annealing furnace 1.

[0041] Both the first flow disturbance ring 202k and the second flow disturbance ring 202s are fixedly arranged on the bent air pipe 202e. Both sides of the first flow disturbance ring 202k are provided with flow disturbance surfaces 202m. The second flow disturbance ring 202s is provided with flow disturbance blocks 202n and fixing strips 202t. Both ends of the flow disturbance block 202n are in a structure similar to a cone. One end of the fixing strip 202t is connected to the flow disturbance block 202n, and the other end is connected to the inner wall of the second flow disturbance ring 202s. Both the first flow disturbance ring 202k and the second flow disturbance block 202n are provided in multiple numbers and are evenly distributed in the bent air pipe 202e.

[0042] When the high-temperature gas enters the bent gas pipe 202e, it is cooled through the heat exchange time. At the same time, since the gas close to the wall of the bent gas pipe 202e undergoes heat exchange fastest, while the gas in the middle of the pipe has slower heat exchange, resulting in a higher temperature of this part of the gas. By setting the spoiler surface 202m on the first spoiler ring 202k, the gas with a lower temperature close to the pipe wall is guided to the middle of the pipe to be mixed with the gas with a relatively higher temperature in the middle of the pipe, thereby improving the mixing degree of the gas, and thus increasing the cooling rate of the gas in the bent gas pipe 202e. At the same time, through the spoiler block 202n, the gas with a higher temperature in the middle of the pipe is guided to the pipe wall to be mixed with the relatively cold air close to the pipe wall, further improving the mixing efficiency and thus increasing the cooling rate of the gas.

[0043] A plurality of heat dissipation fins 202g are also provided on the outer wall of the bent gas pipe 202e. The heat dissipation fins 202g are in a circular sheet-like structure, and through holes 202p are also provided on the heat dissipation fins 202g. A plurality of through holes 202p are provided and are evenly arranged on the heat dissipation fins 202g. Serrated protrusions 202r are provided on the heat dissipation fins 202g.

[0044] By setting the heat dissipation fins 202g into a plurality of circular sheet-like structures, compared with the traditional integral heat dissipation fins, it is more conducive to the flow of cooling water, ensuring that the water with a high temperature can flow away quickly. At the same time, the serrated protrusions 202r and through holes further increase the heat exchange area and the flow area of the cold water flow, thereby improving the heat exchange efficiency.

[0045] Specific Embodiment 1: A cold air shunt box 3 connected to the intake pipe 202a is further provided at the top of the inner cavity of the annealing furnace 1. The upper end surface of the cold air shunt box 3 is fixedly connected to the annealing furnace 1. The cold air shunt box 3 has a hollow structure inside, and a plurality of shunt holes 4 are provided on the lower end surface of the cold air shunt box. By introducing the cooled gas into the cold air shunt box 3 and then blowing it into the annealing furnace 1 through the shunt holes 4, using multiple cold air streams to replace the traditional single cold air stream not only increases the heat exchange area between the hot and cold air but also improves the mixing degree of the hot and cold air, thereby increasing the descending speed of the air in the annealing furnace.

[0046] Embodiment 2: The spoiler surface 202m provided on the first spoiler ring 202k is one of an arc surface and an inclined plane. The axis line of the spoiler block 202n is collinearly arranged with the axis line of the bent air pipe 202e. The spoiler surface 202m with an arc surface or inclined plane structure guides the cold air attached to the pipe wall to the middle of the pipe to increase the mixing efficiency. Similarly, the spoiler block 202n is arranged in the middle of the bent air pipe 202e to guide the gas with a higher temperature in the middle of the pipe towards the pipe wall direction to further improve the gas mixing degree. Thereby, the cooling speed of the gas in the bent air pipe 202e is increased. When the high-temperature gas enters the bent air pipe 202e, it is cooled through the heat exchange time. At the same time, since the gas close to the pipe wall of the bent air pipe 202e undergoes heat exchange fastest, while the gas in the middle of the pipe has slower heat exchange, resulting in a higher temperature of this part of the gas. By setting the spoiler surface 202m provided on the first spoiler ring 202k, the cooler gas attached to the pipe wall is guided to the middle of the pipe to be mixed with the gas with a relatively higher temperature in the middle of the pipe, thereby improving the gas mixing degree and thus increasing the cooling speed of the gas in the bent air pipe 202e. At the same time, through the spoiler block 202n, the gas with a higher temperature in the middle of the pipe is guided to the pipe wall to be mixed with the relatively cooler air attached to the pipe wall, further improving the mixing efficiency and thus increasing the cooling speed of the gas.

[0047] Working principle: After the iron core is annealed, the furnace door of the annealing furnace 1 is opened, and then the cooling device 2 is started. In the water circulation device 201 of the cooling device 2, the cooled water provided by the external cooling water tower enters the circulation water tank 201a through the upper water pipe 201b, exchanges heat with the air circulation device 202, and then flows out from the lower water pipe 201c provided on the upper side of the side of the circulation water tank 201a and re-enters the cooling tower for cooling. The exhaust fan 202f extracts the high-temperature air in the annealing furnace 1 and sends it through the air outlet pipe 202b into the lower shunt bin 202d, where it is shunted into multiple bent air pipes 202e for cooling. Then, the cooled air in the bent air pipe 202e enters the cold air shunt box 3 through the air inlet pipe 202a and is shunted into the annealing furnace 1. By introducing the cooled gas into the cold air shunt box 3 and then blowing it into the annealing furnace 1 through the shunt holes 4, using multiple cold air streams to replace the traditional single cold air stream not only increases the heat exchange area between hot and cold air but also improves the mixing degree of hot and cold air, thereby increasing the descending speed of the air in the annealing furnace. By setting the heat dissipation fins 202g into a plurality of circular sheet-like structures, compared with the traditional integral heat dissipation fins, it is more conducive to the flow of cooling water, ensuring that the water with a high temperature can flow away quickly. At the same time, the serrated protrusions 202r and through holes provided further increase the heat exchange area and the flow area of the cold water flow, thereby improving the heat exchange efficiency.

[0048] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0049] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An annealing device for producing iron cores that can quickly cool down, comprising an annealing furnace (1), characterized in that, The annealing furnace (1) is also provided with a cooling device (2). The cooling device (2) includes a water circulation device (201) and an air circulation device (202). The air circulation device (202) circulates and cools the high-temperature gas in the annealing furnace (1), and the water circulation device (201) is used to exchange heat with the air circulation device (202) to reduce the temperature of the gas in the air circulation device (202). The water circulation device (201) includes a circulation water tank (201a), an upper water pipe (201b), and a lower water pipe (201c). The upper water pipe (201b) is arranged at the upper part of the circulation water tank (201a), and the lower water pipe (201c) is arranged at the upper side of the circulation water tank (201a). The upper water pipe (201b) is connected to an external cooling tower to provide water source, and the lower water pipe (201c) is connected to the water inlet of the external cooling tower. The air circulation device (202) includes an air inlet pipe (202a), an air outlet pipe (202b), an upper shunt bin (202c), a lower shunt bin (202d), a bent air pipe (202e), a suction fan (202f), and heat dissipation fins (202g). The bent air pipe (202e) is provided with a plurality of linear arrays arranged inside the circulation water tank (201a) and is connected to the circulation water tank (201a) through a fixing frame (202h). One end of multiple groups of the bent air pipes (202e) is connected to the upper shunt bin (202c), and the other end is connected to the lower shunt bin (202d). One end of the air inlet pipe (202a) penetrates the outer wall of the annealing furnace (1) and extends into its interior, and the other end is connected to the upper shunt bin (202c). One end of the air outlet pipe (202b) is connected to the air outlet of the suction fan (202f), and the air inlet of the suction fan (202f) is connected to the inner cavity of the annealing furnace (1) through a trachea. The other end of the air outlet pipe (202b) is connected to the lower shunt bin (202d). Valves (202j) are provided on both the air inlet pipe (202a) and the air outlet pipe (202b). A first flow disturbing ring (202k) and a second flow disturbing ring (202s) are also provided on the bent air pipe (202e). The first flow disturbing ring (202k) and the second flow disturbing ring (202s) are both fixedly arranged on the bent air pipe (202e). Flow disturbing surfaces (202m) are provided on both sides of the first flow disturbing ring (202k). Flow disturbing blocks (202n) and fixing bars (202t) are provided on the second flow disturbing ring (202s). Both ends of the flow disturbing block (202n) are in a structure similar to a cone. One end of the fixing bar (202t) is connected to the flow disturbing block (202n), and the other end is connected to the inner wall of the second flow disturbing ring (202s). A plurality of the heat dissipation fins (202g) are further arranged on the outer wall of the bent air pipe (202e). The heat dissipation fins (202g) are in an annular sheet structure, and through holes (202p) are further arranged on the heat dissipation fins (202g).

2. The annealing device capable of rapid cooling for core production according to claim 1, wherein: A cold air shunt box (3) connected to the air inlet pipe (202a) is further arranged at the top of the inner cavity of the annealing furnace (1). The upper end surface of the cold air shunt box (3) is fixedly connected to the annealing furnace (1).

3. The annealing device capable of rapidly cooling for core production according to claim 2, characterized in that: The cold air shunt box (3) has a hollow structure inside, and a plurality of shunt holes (4) are arranged on the lower end surface of the cold air shunt box (3).

4. The annealing device for producing iron cores capable of rapid cooling according to claim 1, wherein: The turbulence surface (202m) provided on the first turbulence ring (202k) is one of an arc surface and an inclined plane.

5. A annealing device for producing iron cores that can rapidly cool down according to claim 1, characterized in that: The axis line of the turbulence block (202n) is collinear with the axis line of the bent air pipe (202e).

6. The annealing device capable of rapid cooling for core production according to claim 1, wherein: A plurality of the through holes (202p) are provided and are evenly arranged on the heat dissipation fins (202g).

7. An annealing device for producing an iron core that can quickly cool down according to claim 6, characterized in that: The heat dissipation fins (202g) are provided with serrated protrusions (202r).

Images