Automatic water supply spraying system for bell type annealing furnace

Abstract

The application relates to the technical field of annealing furnaces, in particular to an automatic water supply spraying system of a bell-type annealing furnace. The annealing furnace comprises a base, a placing table is arranged on the base, a placing plate is arranged on the placing table, a placing ring is fixedly connected to the bottom of the placing table, an inner cover and an outer cover are sequentially arranged on the base, the circumferential wall of the top of the inner cover is processed to form a corrugated outwardly protruding spherical inner cover, the spraying system comprises a spraying seat, the spraying seat is arranged on the top of the inner cover, water spraying holes are arranged on the spraying seat, a plurality of water spraying holes are arranged at intervals, a fixed pipe is connected to the spraying seat, the fixed pipe is bent into an L shape and one section of the fixed pipe is attached to the side wall of the inner cover, one end of the fixed pipe is connected with a spraying hose, a water collecting tank is arranged on one side of the base, a water pump is installed in the water collecting tank, and the water outlet end of the water pump is connected with the spraying hose. The application has the effects of improving the covering area of cooling water during spraying cooling and reducing water resource waste.

Description

Technical Field

[0001] This application relates to the field of annealing furnace technology, and in particular to an automatic water supply and spraying system for a bell-type annealing furnace. Background Technology

[0002] Annealing is a common heat treatment process for metallic materials, mainly used to eliminate internal stress, refine grains, or improve processing performance. An annealing furnace is a piece of equipment used in the annealing process. In the annealing furnace, the material needs to undergo specific heating, holding, and cooling processes to achieve the defined process requirements.

[0003] The cooling process of an annealing furnace typically employs either air cooling or water cooling. Water cooling involves externally spraying water to lower the internal temperature of the furnace. Compared to air cooling, water cooling achieves a faster cooling rate and reaches the target temperature more quickly.

[0004] The existing technical solutions mentioned above have the following drawbacks: when the existing spray system is used for spray cooling, the cooling water coverage area is small, resulting in low cooling efficiency and serious waste of water resources. Utility Model Content

[0005] In order to increase the coverage area of ​​cooling water during spray cooling and reduce water waste, this application provides an automatic water supply spray system for a bell-type annealing furnace.

[0006] The above-mentioned technical objective of this application is achieved through the following technical solution:

[0007] An automatic water supply and spraying system for a bell-type annealing furnace includes a base with a placement platform on it. A placement plate is placed on the placement platform, and a placement ring is fixed to the bottom of the placement platform. An inner cover and an outer cover are sequentially fitted onto the base. The top of the inner cover is machined into an outwardly protruding spherical surface, and the peripheral wall of the inner cover is machined into a corrugated shape. The spraying system includes a spraying seat located on top of the inner cover. The spraying seat has multiple spray holes spaced apart. A fixing pipe is connected to the spraying seat. The fixing pipe is bent into an L-shape, with one end fitting against the side wall of the inner cover. One end of the fixing pipe is connected to a spraying hose. A water collection tank is provided on one side of the base, and a water pump is installed in the water collection tank. The outlet end of the water pump is connected to the spraying hose.

[0008] By adopting the above technical solution, cold water in the water collection tank flows out from the top of the inner cover and down the outer wall of the inner cover. The water in the water collection tank is transported to the spray seat by a water pump. The water flows down the outer wall of the inner cover from the top of the inner cover. The top of the inner cover is processed into a spherical surface and the outer wall is processed into a corrugated shape, which can increase the contact area between the water flowing out of the spray seat and the outer wall of the inner cover, improve the heat exchange efficiency between the water and the inner cover, ensure that the flowing water can cover the outer wall of the inner cover, increase the coverage area of ​​the cooling water during spray cooling, and reduce water waste.

[0009] Optionally, the bottom of the spray seat is machined to form an arc surface that fits the top of the inner cover.

[0010] By adopting the above technical solution, the bottom of the spray seat is processed to form an arc surface that fits the inner cover, which makes it easier for workers to place the spray seat on the inner cover and improves the stability of the spray seat when placed on the inner cover.

[0011] Optionally, a centrifugal fan is installed on the placement platform, and a guide plate is fixedly connected to the placement platform. Multiple guide plates are arranged at intervals, and all multiple guide plates are fixedly connected to the placement platform.

[0012] By adopting the above technical solution, the centrifugal fan is started, and air enters the centrifugal fan through the through holes on the placement plate. Then, it flows through the guide plate to the gap between the placement plate and the inner cover and is discharged. This airflow in the inner cover can make the temperature inside the furnace rise or fall evenly, improve the heat exchange efficiency between the inner cover and the air inside the furnace, ensure a uniform temperature field inside the annealing furnace, and drive the gas inside the furnace to flow in the gaps between the materials. This ensures that the protective gas fully participates in the annealing process, reduces the thermal deviation of the materials inside the annealing furnace, ensures the quality of material processing, and ensures the safety and stability of the annealing furnace operation.

[0013] Optionally, a sealing ring is fixedly connected to the bottom of the inner cover, the sealing ring abuts against the placement ring, a water baffle is fixedly connected to the sealing ring, the water baffle is arranged in a ring, a water collection pipe is fixedly connected to the water baffle, and one end of the water collection pipe is located above the water collection trough.

[0014] By adopting the above technical solution, the water sprayed from the spray seat flows along the outer wall of the inner cover to the annular groove formed by the baffle plate and the peripheral wall of the inner cover, and finally flows into the water collection tank from the water collection pipe for cooling. The rectangular water collection tank can improve the cooling effect of the water in the water collection tank, which is conducive to cooling the inner cover through water circulation. The water in the water collection tank circulates through the outer wall of the inner cover, which can reduce the temperature of the inner cover, thereby reducing the temperature inside the annealing furnace. The water flowing down the outer wall of the inner cover is blocked by the baffle plate and flows into the water collection tank through the water collection pipe for cooling, which can reduce the amount of water consumed when the annealing furnace is cooled.

[0015] Optionally, the water collection tank is rectangular, the outlet end of the water pump is connected to an outlet pipe, an outlet valve is installed on the outlet pipe, multiple outlet valves are spaced apart, one end of the outlet valve is connected to the flexible hose, and a sealing ring is fixed to the bottom of the inner cover.

[0016] By adopting the above technical solution, the water sprayed from the spray seat flows along the outer wall of the inner cover to the annular groove formed by the baffle plate and the peripheral wall of the inner cover, and finally flows into the water collection tank from the water collection pipe for cooling. The rectangular water collection tank can improve the cooling effect of the water in the water collection tank, which is conducive to cooling the inner cover through water circulation. The water in the water collection tank circulates through the outer wall of the inner cover, which can reduce the temperature of the inner cover, thereby reducing the temperature inside the annealing furnace. The water flowing down the outer wall of the inner cover is blocked by the baffle plate and flows into the water collection tank through the water collection pipe for cooling, which can reduce the amount of water consumed when the annealing furnace is cooled.

[0017] Optionally, a cooling plate is fixed to the bottom of the centrifugal fan. The cooling plate has a cavity and is connected to a cooling hose. There are at least two cooling hoses, one of which is connected to one end of the water outlet valve, and the other is located above the water collection tank.

[0018] By adopting the above technical solutions, the cooling plate can reduce the temperature of the centrifugal fan, reduce the risk of damage to the centrifugal fan due to high temperature, and ensure the safety and stability of the centrifugal fan operation.

[0019] Optionally, a sealing strip is fixed to the placement ring.

[0020] By adopting the above technical solutions, the sealing strip can improve the sealing performance at the connection between the inner cover and the placement platform, ensure the stability of the annealing furnace's material processing effect, ensure the uniform temperature reduction inside the furnace during cooling, and ensure the safety and stability of the annealing furnace operation.

[0021] Optionally, a cooling pipe is fixed to the sealing ring. The cooling pipe is arranged in a ring along one side of the baffle plate. The two ends of the cooling pipe are close to each other and connected to a cooling hose. One cooling hose is connected to one end of the water outlet valve, and the other cooling hose is located above the water collection tank.

[0022] By adopting the above technical solution, the cooling pipe can reduce the temperature at the connection between the sealing ring and the sealing strip through water circulation inside the pipe. It can also reduce the temperature of the sealing strip when heating or heat preservation in the annealing furnace, ensuring the stability of the sealing effect of the sealing strip and reducing the risk of damage to the sealing strip due to high temperature.

[0023] In summary, this application has the following technical effects:

[0024] 1. By setting up an inner cover and a spray base, the contact area between the water flowing out of the spray base and the outer wall of the inner cover can be increased, thereby improving the heat exchange efficiency between the water and the inner cover, ensuring that the flowing water can cover the outer wall of the inner cover, increasing the coverage area of ​​the cooling water during spray cooling, and reducing water waste.

[0025] 2. By setting a sealing ring, baffle plate and water collection pipe, the water in the water collection tank circulates through the outer wall of the inner cover, which can reduce the temperature of the inner cover, thereby reducing the temperature inside the annealing furnace. The water flowing down the outer wall of the inner cover is blocked by the baffle plate and flows into the water collection tank through the water collection pipe for cooling, which can reduce the amount of water consumed when the annealing furnace is cooled.

[0026] 3. By installing centrifugal fans and baffles, the heat exchange efficiency between the inner shroud and the air inside the furnace is improved, ensuring a uniform temperature field inside the annealing furnace. At the same time, it can drive the gas inside the furnace to flow in the gaps between the materials, ensuring that the protective gas fully participates in the annealing process, reducing the thermal deviation of the materials inside the annealing furnace, ensuring the quality of material processing, and ensuring the safety and stability of the annealing furnace operation. Attached Figure Description

[0027] Figure 1 This is a structural diagram of the object of this application;

[0028] Figure 2 This is a cross-sectional structural diagram of this application;

[0029] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0030] Explanation of reference numerals in the attached drawings: 1. Base; 2. Placement platform; 21. Placement ring; 22. Placement plate; 23. Sealing strip; 24. Centrifugal fan; 25. Guide plate; 26. Cooling tray; 3. Inner cover; 31. Sealing ring; 32. Water baffle; 33. Cooling pipe; 34. Water collection pipe; 4. Water collection tank; 41. Water pump; 42. Water outlet pipe; 43. Water outlet valve; 5. Sprayer seat; 51. Fixing pipe; 52. Spray hose. Detailed Implementation

[0031] The present application will be further described in detail below with reference to the accompanying drawings.

[0032] This application discloses an automatic water supply and spraying system for a bell-type annealing furnace, referring to... Figure 1 and Figure 2The bell-type annealing furnace includes a base 1, a placement platform 2 on the top of the base 1, a placement plate 22 on the top of the placement platform 2, an inner cover 3 on the base 1, the top surface of the inner cover 3 is machined into an outwardly protruding spherical surface, the peripheral wall of the inner cover 3 is machined into a corrugated shape along the height direction of the inner cover 3, a sealing ring 31 is integrally formed at the bottom of the inner cover 3, and an outer cover with a heating function is fitted on the outer wall of the inner cover 3. The outer cover heats or keeps the inside of the annealing furnace warm through the outer cover. The outer cover is removed when the annealing furnace cools down. The outer cover is not shown in the figure in this embodiment. A water collection tank 4 is provided on one side of the base 1. The water collection tank 4 is cuboid. A water pump 41 is installed in the water collection tank 4. The water inlet of the water pump 41 is located at the bottom of the water collection tank 4. The water outlet of the water pump 41 is connected to a water outlet pipe 42. The water outlet pipe 42 is fixed to the top of the water collection tank 4 by bolts. The end of the water outlet pipe 42 away from the water pump 41 is closed. Multiple water outlet valves 43 are installed on the water outlet pipe 42.

[0033] Reference Figure 1 and Figure 2 The inner cover 3 is provided with a spray seat 5 at the top. The spray seat 5 is annular and has spray holes on its side wall. Multiple spray holes are spaced apart. The side of the spray seat 5 facing the inner cover 3 is machined with an anti-slip ridge. The anti-slip ridge protrudes from the outer wall of the spray seat 5. The anti-slip ridge in this embodiment is not shown in the figure. The side of the spray seat 5 facing the inner cover 3 is machined to form an arc surface that fits the top of the inner cover 3. A fixing pipe 51 is connected to one side of the spray seat 5. The fixing pipe 51 is bent into an L shape and one part fits the side wall of the inner cover 3. The end of the fixing pipe 51 away from the spray seat 5 is connected to a spray hose 52. One end of the spray hose 52 is connected to one end of a water outlet valve 43 on the water outlet pipe 42.

[0034] Reference Figure 2 and Figure 3 The bottom periphery of the placement platform 2 is integrally formed with a placement ring 21. A groove is formed on the top surface of the placement ring 21 near the placement platform 2, and one side of the groove connects to the side wall of the placement platform 2. A sealing strip 23 is adhered to the side wall away from the placement platform 2. In this embodiment, the sealing strip 23 is made of silicone. A guide plate 25 is welded inside the placement platform 2. The top of the placement platform 2 is machined into an inwardly concave spherical shape. A centrifugal fan 24 is installed on the top of the placement platform 2. The guide plate 25 is bent into an arc shape. Multiple guide plates 25 are arranged at intervals on the top of the placement platform 2 in a centrally symmetrical manner. The top of the guide plates 25 are welded to the placement plate 22. A through hole is opened at the center of the surface of the placement plate 22. The bottom of the centrifugal fan 24 is fixed to the cooling plate 26 by bolts. A cavity is opened in the cooling plate 26. The cooling plate 26 is connected to a cooling hose. There are two cooling hoses. One cooling hose is connected to one end of a water outlet valve 43 of the water outlet pipe 42, and the other cooling hose is located above the water collection tank 4.

[0035] Reference Figure 1 and Figure 2 The bottom of the inner cover 3 is integrally formed with a sealing ring 31. The sealing ring 31 is sleeved on the placement platform 2 and abuts against the top surface of the placement ring 21. A connecting block is welded to the peripheral wall of the sealing ring 31. Multiple connecting blocks are spaced apart. Bolts are passed through the connecting blocks. The placement ring 21 has a connecting hole for bolt thread connection. Multiple connecting holes are spaced apart and correspond one-to-one with multiple connecting blocks. A positioning plate is welded to the sealing ring 31. Two positioning plates are spaced apart. The end of the positioning plate away from the sealing ring 31 has a fixing hole for the positioning rod to pass through.

[0036] Reference Figure 1 and Figure 2 A baffle plate 32 is integrally formed on the side of the top surface of the sealing ring 31 away from the inner cover 3. The baffle plate 32 is arranged in a ring and forms an annular groove with the outer wall of the inner cover 3. A water collection pipe 34 is welded to the side of the baffle plate 32 near the water collection tank 4. One end of the water collection pipe 34 is connected to the side of the baffle plate 32 facing the inner cover 3, and the other end of the water collection pipe 34 is located above the water collection tank 4. A cooling pipe 33 is welded to the side of the baffle plate 32 facing the inner cover 3. The cooling pipe 33 is arranged in a ring on the sealing ring 31 with its two ends close to each other. The cooling pipe 33 is located above the sealing strip 23. Both ends of the cooling pipe 33 are bent away from the inner cover 3 and pass through the baffle plate 32. Both ends of the cooling pipe 33 are connected to cooling hoses. One cooling hose is connected to one end of a water outlet valve 43 on the water outlet pipe 42, and the other cooling hose is located in the water collection tank 4 at the end away from the cooling pipe 33.

[0037] When using this hood-type annealing furnace, place the material on the placement plate 22, and use a hoist to install and fix the inner cover 3 and outer cover in sequence. The outer cover heats or insulates the furnace. When spraying the furnace to cool it down, use the hoist to remove the outer cover and place the spray seat 5 on top of the inner cover 3. At this time, the fixing pipe 51 is attached to the outer wall of the inner cover 3. Start the water pump 41 and open the water outlet valve 43 connected to the spray seat 5 so that the cold water in the water collection tank 4 flows out from the top of the inner cover 3 and flows down the outer wall of the inner cover 3. The water pump 41 transports the water in the water collection tank 4 to the spray seat 5. The water flows down the outer wall of the inner cover 3 from the top of the inner cover 3. The top of the inner cover 3 is processed into a spherical surface and the outer wall is processed into a corrugated shape, which can increase the contact area between the water flowing out of the spray seat 5 and the outer wall of the inner cover 3, improve the heat exchange efficiency between the water and the inner cover 3, ensure that the flowing water can cover the outer wall of the inner cover 3, increase the coverage area of ​​the cooling water during spraying and cooling, and reduce water waste.

[0038] When this spray system is used, the water sprayed from the spray seat 5 flows along the outer wall of the inner cover 3 to the annular groove formed by the baffle plate 32 and the peripheral wall of the inner cover 3, and finally flows into the water collection tank 4 from the water collection pipe 34 for cooling. The rectangular water collection tank 4 can improve the cooling effect of the water in the water collection tank 4, which is conducive to cooling the inner cover 3 through water circulation. The water in the water collection tank 4 circulates through the outer wall of the inner cover 3, which can reduce the temperature of the inner cover 3, thereby reducing the temperature inside the annealing furnace. The water flowing down the outer wall of the inner cover 3 is blocked by the baffle and flows into the water collection tank 4 through the water collection pipe 34 for cooling, which can reduce the amount of water consumed when the annealing furnace is cooled.

[0039] When using this bell-type annealing furnace, start the centrifugal fan 24. Air enters the centrifugal fan 24 through the through holes on the placement plate 22, then flows through the guide plate 25 to the gap between the placement plate 22 and the inner cover 3 and is discharged. This airflow in the inner cover 3 allows the furnace temperature to rise or fall evenly, improves the heat exchange efficiency between the inner cover 3 and the furnace air, ensures a uniform temperature field in the annealing furnace, and drives the gas in the furnace to flow in the gaps between the materials. This ensures that the protective gas fully participates in the annealing process, reduces the thermal deviation of the materials in the annealing furnace, ensures the quality of material processing, and guarantees the safety and stability of the annealing furnace operation.

[0040] The top of the inner cover 3 is spherical and the outer wall is corrugated, which can increase the contact area between the water flowing out of the spray seat 5 and the outer wall of the inner cover 3, improve the heat exchange efficiency between the water and the inner cover 3, ensure that the flowing water can cover the outer wall of the inner cover 3, and ensure the cooling effect of the circulating water on the inner cover 3.

[0041] The sealing strip 23 can improve the sealing performance at the connection between the inner cover 3 and the placement platform 2, ensure the stability of the material processing effect of the annealing furnace, ensure the uniform temperature reduction inside the furnace during cooling, and ensure the safety and stability of the annealing furnace operation.

[0042] The cooling pipe 33 can reduce the temperature at the connection between the sealing ring 31 and the sealing strip 23 by circulating water inside the pipe. It can also reduce the temperature of the sealing strip 23 when heating or heat preservation in the annealing furnace, ensuring the stability of the sealing effect of the sealing strip 23 and reducing the risk of damage to the sealing strip 23 due to high temperature.

[0043] The rectangular water collection tank 4 can increase the volume of the water collection tank 4 and increase the contact area between the water inside and the air, thereby improving the cooling effect of the water inside the water collection tank 4. When multiple annealing furnaces are set up, the annealing furnaces are arranged on both sides of the water collection tank 4 along the length of the water collection tank 4. Multiple water outlet valves 43 on the water outlet pipe 42 can be connected to multiple spray hoses 52, so that multiple spray hoses 52 connected to spray seats 5 and fixed pipes 51 can cool multiple annealing furnaces respectively. This allows the spray system to cool the inner cover 3 of multiple annealing furnaces at the same time, improving work efficiency and reducing the amount of water consumed when cooling multiple annealing furnaces.

[0044] The protruding anti-slip ridges on the spray seat 5 increase the friction between the spray seat 5 and the inner cover 3, ensuring the stability and safety of the spray seat 5 during operation. The bottom of the spray seat 5 is machined to form an arc surface that fits the inner cover 3, making it easier for workers to place the spray seat 5 on the inner cover 3 and improving the stability of the spray seat 5 on the inner cover 3.

[0045] The surface of the guide plate 25 is curved into an arc shape, which can increase the overall structural strength of the guide plate 25 and the placement plate 22, and make the air flow upward spirally along the inner wall of the inner cover 3. This can improve the heat exchange efficiency between the inner cover 3 and the air in the furnace when it is cooled, and ensure the uniform temperature in the annealing furnace.

[0046] Starting the water pump 41 causes the water in the water collection tank 4 to circulate in the cooling plate 26, which can reduce the temperature of the centrifugal fan 24, reduce the risk of damage to the centrifugal fan 24 due to high temperature, and ensure the safety and stability of the centrifugal fan 24 in operation.

[0047] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. An automatic water supply and spraying system for a bell-type annealing furnace, the annealing furnace comprising a base (1), a placement platform (2) provided on the base (1), a placement plate (22) provided on the placement platform (2), a placement ring (21) fixedly connected to the bottom of the placement platform (2), and an inner cover (3) and an outer cover sequentially fitted on the base (1), characterized in that, The top of the inner cover (3) is machined into an outwardly protruding spherical surface, and the peripheral wall of the inner cover (3) is machined into a corrugated shape. The spray system includes a spray seat (5), which is located on the top of the inner cover (3). The spray seat (5) has spray holes, and multiple spray holes are spaced apart. The spray seat (5) is connected to a spray hose (52). A water collection tank (4) is provided on one side of the base (1). A water pump (41) is installed in the water collection tank (4), and the outlet end of the water pump (41) is connected to the spray hose (52).

2. The automatic water supply and spraying system for a bell-type annealing furnace according to claim 1, characterized in that: The bottom of the spray seat (5) is machined to form an arc surface that fits the inner cover (3).

3. The automatic water supply and spraying system for a bell-type annealing furnace according to claim 2, characterized in that: A centrifugal fan (24) is installed on the placement platform (2), and a guide plate (25) is fixedly connected to the placement platform (2). Multiple guide plates (25) are arranged at intervals, and multiple guide plates (25) are all fixedly connected to the placement plate (22).

4. The automatic water supply and spraying system for a bell-type annealing furnace according to claim 3, characterized in that: A sealing ring (31) is fixedly connected to the bottom of the inner cover (3). The sealing ring (31) abuts against the placement ring (21). A water baffle (32) is fixedly connected to the sealing ring (31). The water baffle (32) is arranged in a ring shape. A water collection pipe (34) is fixedly connected to the water baffle (32). One end of the water collection pipe (34) is located above the water collection trough (4).

5. The automatic water supply and spraying system for a bell-type annealing furnace according to claim 4, characterized in that: The water collection tank (4) is rectangular. The outlet end of the water pump (41) is connected to the outlet pipe (42). The outlet pipe (42) is equipped with an outlet valve (43). Multiple outlet valves (43) are spaced apart. One end of the outlet valve (43) is connected to the spray hose (52). A sealing ring (31) is fixed to the bottom of the inner cover (3).

6. The automatic water supply and spraying system for a bell-type annealing furnace according to claim 5, characterized in that: The centrifugal fan (24) is fixed to the bottom of a cooling plate (26), and the cooling plate (26) is provided with a cavity. The cooling plate (26) is connected to a cooling hose, and there are at least two cooling hoses. One cooling hose is connected to one end of a water outlet valve (43), and the other cooling hose is located above the water collection tank (4).

7. The automatic water supply and spraying system for a bell-type annealing furnace according to claim 4, characterized in that: A sealing strip (23) is fixedly attached to the placement ring (21).

8. The automatic water supply and spraying system for a bell-type annealing furnace according to claim 5, characterized in that: A cooling pipe (33) is fixedly connected to the sealing ring (31). The cooling pipe (33) is arranged in a ring along one side of the baffle plate (32). The two ends of the cooling pipe (33) are close to each other and connected to a cooling hose. One cooling hose is connected to one end of the outlet valve (43), and the other cooling hose is located above the water collection tank (4).

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