Efficient final cooling chamber

Abstract

The utility model provides an efficient final cooling chamber, which relates to the field of cooling chambers, and comprises a final cooling chamber main body, an air inlet mechanism and an air exhaust mechanism, the middle part of the final cooling chamber main body is provided with a front-back through cooling cavity channel, the air inlet mechanism comprises an upper air inlet and a lower air inlet, and the upper air inlet and the lower air inlet are respectively arranged at the upper side and the lower side of the cooling cavity channel; the air exhaust mechanism comprises a left air exhaust port and a right air exhaust port, the left air exhaust port and the right air exhaust port are distributed on the left side and the right side of the cooling cavity channel respectively, cooling air is divided into two paths to spray products from the upper portion and the lower portion of the net belt in a double-face mode, and the heat exchange area of the cooling air and the products is effectively increased; cooling air for cooling the product is synchronously discharged out of the cooling cavity from the left side and the right side, so that comprehensive contact between the cooling air and the product is ensured, and the utilization rate of the cooling air is increased; the cooling effect is comprehensively improved, the overall length of the final cooling chamber can be shortened, the cost can be greatly reduced, meanwhile, shortening of the conveying mesh belt is beneficial to energy saving, and the market popularization value is large.

Description

Technical Field

[0001] The utility model relates to the field of cooling chambers, in particular to a high-efficiency final cooling chamber. Background Art

[0002] After the product leaves the atmosphere curtain room, the temperature is usually lower than 350℃ before entering the final cooling room. After being air-cooled in the final cooling room, the final temperature reaches 20-25℃ higher than the ambient temperature.

[0003] At present, the final cooling chamber uses axial flow fans to provide cooling air. The characteristics of axial flow fans are large capacity and low wind pressure. Therefore, they are limited by wind pressure and the flow rate of cold air is generally 2m-4m / s.

[0004] The axial flow fan is cylindrical, and its diameter varies according to the width of the mesh belt of the brazing furnace, so that the air outlet can cover the products on the mesh belt as much as possible. Due to the limitations of space, cooling air volume and air pressure, the diameter selection of the axial flow fan is very limited, and the air distribution is concentrated and uneven.

[0005] The axial flow fans in the final cooling chamber are usually used in pairs, one for air intake and the other for exhaust. There are currently three types of fan arrangements:

[0006] (1) Two fans are installed directly on the upper and lower sides of the mesh belt: the cold air path is the shortest and can be used effectively. However, the air inlet axial flow fan placed under the brazing furnace conveyor mesh belt can only absorb the air in the workshop. In order to ensure the uniformity of the air distribution, the fan outlet is equipped with an air distribution grid plate. The space is very limited. It is generally not suitable for brazing furnaces with wide mesh belts, and it also affects the workshop environment.

[0007] (2) Two fans, one is located directly above the mesh belt and the other is located on the side of the final cooling chamber. The air enters and exits through the mesh belt above and below. The air distribution is poor. Some of the cold air will pass through the product and conduct convective heat exchange with the product, while some of the air will be directly discharged without passing through the product. Generally, adding an air guide plate under the mesh belt will improve the situation. The cooling air is drawn in from outside the factory, which requires changing the flow direction, lengthening the path, and increasing the pressure loss of the air. The limited wind pressure of the axial flow fan will further reduce the cooling efficiency of the air.

[0008] (3) Two fans are arranged parallel to the direction of product operation, and both supply and exhaust air from above the mesh belt: most of the cold air is discharged after passing through only one side of the product, which reduces the heat exchange area with the product and reduces the cooling efficiency.

[0009] The above three existing axial flow fan cooling forms have low cooling wind speed, low convection heat transfer intensity and low cooling efficiency. Utility Model Content

[0010] The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art and provide a high-efficiency final cooling chamber. The cooling air of the present invention is divided into two paths and sprayed on the product from both sides above and below the mesh belt, effectively increasing the heat exchange area between the cooling air and the product; the cooling air after cooling the product is discharged from the cooling cavity synchronously from the left and right sides, ensuring full contact between the cooling air and the product and improving the utilization rate of the cooling air.

[0011] The utility model is realized through the following technical solutions:

[0012] A high-efficiency final cooling chamber comprises a final cooling chamber main body, an air inlet mechanism and an exhaust mechanism, a cooling cavity which passes through the final cooling chamber main body in the middle portion, a mesh belt for conveying products is arranged in the cooling cavity, the air inlet mechanism comprises an upper air inlet and a lower air inlet, the upper air inlet and the lower air inlet are respectively arranged on the upper and lower sides of the cooling cavity, and the cooling air cools the products synchronously from the upper and lower sides, the exhaust mechanism comprises a left air outlet and a right air outlet, the left air outlet and the right air outlet are respectively arranged on the left and right sides of the cooling cavity, and the cooling air after cooling the products is synchronously discharged from the cooling cavity from the left and right sides.

[0013] It can be seen that in the above technical solution, the cooling air of the utility model is divided into two paths and sprayed on the product from both sides above and below the mesh belt, which effectively increases the heat exchange area between the cooling air and the product; the cooling air after cooling the product is discharged from the cooling cavity from the left and right sides simultaneously, ensuring full contact between the cooling air and the product and improving the utilization rate of the cooling air; the cooling effect is comprehensively improved, the overall length of the final cooling chamber can be shortened, and the cost can be greatly reduced. At the same time, the shortening of the conveyor mesh belt is also beneficial to energy saving, and the market promotion value is great.

[0014] According to the above technical solution, preferably, the air intake mechanism further includes an air intake channel and an air intake fan, the upper air inlet and the lower air inlet are connected in parallel, and the air intake fan is connected to the upper air inlet and the lower air inlet through the air intake channel.

[0015] It can be seen that in the above technical solution, the air inlet fan drives the external cooling air through the air inlet channel into the upper air inlet and the lower air inlet connected in parallel, so that the cooling air cools the product synchronously from the upper and lower sides.

[0016] According to the above technical solution, preferably, the exhaust mechanism further includes an exhaust channel and an exhaust fan, the left exhaust port and the right exhaust port are connected in parallel, and the exhaust fan is connected to the left exhaust port and the right exhaust port through the exhaust channel.

[0017] It can be seen that in the above technical solution, the exhaust fan sucks the cooling air at the left and right exhaust ports out of the cooling cavity through the exhaust channel, effectively preventing hot air from overflowing from the front and back of the cooling cavity.

[0018] According to the above technical solution, preferably, an upper nozzle plate is provided between the upper air inlet and the cooling cavity, and a lower nozzle plate is provided between the lower air inlet and the cooling cavity, and cooling nozzles are evenly distributed on the upper nozzle plate and the lower nozzle plate.

[0019] It can be seen that in the above technical solution, the cooling air nozzle can spray the cooling air at a relatively high wind speed onto the surface of the product, thereby forming a turbulent flow with a high heat exchange rate and improving the cooling efficiency of the product.

[0020] According to the above technical solution, preferably, the cooling air nozzles of the upper air nozzle plate and the lower air nozzle plate are staggered in the vertical direction.

[0021] It can be seen that in the above technical solution, the staggered upper and lower nozzle plates of the cooling air nozzles can further improve the heat exchange rate of the cooling air and enhance the cooling effect of the product.

[0022] According to the above technical solution, preferably, the cooling air nozzles of the upper air nozzle plate and the lower air nozzle plate located on both sides of the inlet and outlet are arranged to be inclined toward the inside of the cooling cavity.

[0023] It can be seen that in the above technical solution, the cooling air nozzle is tilted toward the inside of the cooling cavity, which can prevent the cooling air from flowing out of the final cooling chamber.

[0024] According to the above technical solution, preferably, the final cooling chamber body includes an upper final cooling chamber chamber and a lower final cooling chamber chamber that are spliced ​​and sealed.

[0025] It can be seen that in the above technical solution, the final cooling chamber body includes an upper final cooling chamber and a lower final cooling chamber that are spliced ​​and sealed, which makes it easy to connect the two chambers along the four sides with bolts, facilitating manufacturing and internal installation.

[0026] The beneficial effects of the utility model are:

[0027] (1) The cooling air of the utility model is divided into two paths and sprayed on the product from both sides above and below the mesh belt, effectively increasing the heat exchange area between the cooling air and the product; the cooling air after cooling the product is discharged from the cooling cavity from the left and right sides simultaneously, ensuring full contact between the cooling air and the product, and improving the utilization rate of the cooling air;

[0028] (2) The cooling effect is comprehensively improved, the final cooling chamber can shorten the overall length, which can greatly reduce the cost. At the same time, the shortening of the conveyor belt is also beneficial to energy saving, and the market promotion value is great. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Shows a schematic diagram of the main structure of an embodiment of the present utility model;

[0030] Figure 2 Shows a left-side structural schematic diagram according to an embodiment of the present utility model;

[0031] Figure 3 Shown Figure 1 Schematic diagram of the cross-sectional structure in the AA direction;

[0032] Figure 4 The following is a schematic structural diagram of the lower tuyere plate in an embodiment of the present invention;

[0033] Description of reference numerals:

[0034] 1. Final cooling chamber body; 2. Air inlet mechanism; 3. Exhaust mechanism; 4. Final cooling chamber upper chamber; 5. Final cooling chamber lower chamber; 6. Cooling cavity; 7. Upper air inlet; 8. Lower air inlet; 9. Air inlet duct; 10. Air inlet fan; 11. Left air exhaust outlet; 12. Right air exhaust outlet; 13. Exhaust duct; 14. Exhaust fan; 15. Upper air nozzle plate; 16. Mesh belt; 17. Lower air nozzle plate; 18. Cooling air nozzle. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is further described in detail below with reference to the accompanying drawings and the best embodiment. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without making any creative work shall fall within the scope of protection of the utility model.

[0036] In the description of the utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the utility model.

[0037] like Figures 1 to 4As shown, the utility model provides a high-efficiency final cooling chamber, including a final cooling chamber main body 1, an air intake mechanism 2 and an exhaust mechanism 3, wherein the final cooling chamber main body 1 includes a final cooling chamber upper chamber 4 and a final cooling chamber lower chamber 5 that are spliced ​​and sealed and connected, and the final cooling chamber upper chamber 4 and the final cooling chamber lower chamber 5 are sealed and fixedly connected along the four sides using bolts, which is convenient for the manufacture and internal installation of the final cooling chamber, and a cooling cavity 6 that passes through the front and back is provided in the middle of the final cooling chamber main body 1, and a mesh belt 16 for conveying products is arranged in the cooling cavity 6, and the air intake mechanism 2 includes an upper air inlet 7, a lower air inlet 8, an air inlet channel 9 and an air inlet fan 10, and the upper air inlet 7 and the lower air inlet 8 are respectively arranged on the upper and lower sides of the cooling cavity 6, and the upper air inlet 7 and the lower air inlet 8 are connected in parallel, and the air inlet fan 10 is connected to the upper air inlet 7 and the lower air inlet 8 through the air inlet channel 9. The air inlet fan 10 drives the external cooling air into the upper air inlet 7 and the lower air inlet 8 connected in parallel through the air inlet channel, so that the cooling air cools the product synchronously from the upper and lower sides. The exhaust mechanism 3 includes a left exhaust port 11, a right exhaust port 12, an exhaust channel 13 and an exhaust fan 14. The left exhaust port 11 and the right exhaust port 12 are respectively arranged on the left and right sides of the cooling cavity 6. The left exhaust port 11 and the right exhaust port 12 are connected in parallel. The exhaust fan 14 is connected with the left exhaust port 11 and the right exhaust port 12 through the exhaust channel 13. The cooling air after cooling the product is discharged from the cooling cavity 6 synchronously from the left and right sides. Specifically, the exhaust fan 14 sucks the cooling air at the left exhaust port 11 and the right exhaust port 12 out of the cooling cavity 6 under negative pressure through the exhaust channel 13, effectively preventing hot air from flowing out from the front and back of the cooling cavity 6.

[0038] The cooling air of the utility model is divided into two paths and sprayed on the product from both sides above and below the mesh belt 16, which effectively increases the heat exchange area between the cooling air and the product; the cooling air after cooling the product is discharged from the cooling cavity 6 from the left and right sides simultaneously, ensuring full contact between the cooling air and the product and improving the utilization rate of the cooling air; the cooling effect is comprehensively improved, the overall length of the final cooling chamber can be shortened, and the cost can be greatly reduced. At the same time, the shortening of the conveying mesh belt 16 is also beneficial to energy saving, and the market promotion value is great.

[0039] Optionally, in a possible embodiment, an upper nozzle plate 15 is provided between the upper air inlet 7 and the cooling cavity 6, and a lower nozzle plate 17 is provided between the lower air inlet 8 and the cooling cavity 6. Cooling nozzles 18 are evenly distributed on the upper nozzle plate 15 and the lower nozzle plate 17. The cooling nozzles 18 can spray the cooling air onto the product surface at a higher wind speed, thereby forming turbulence with a high heat exchange rate, thereby improving the cooling efficiency of the product.

[0040] Optionally, in a possible embodiment, the cooling air nozzles 18 of the upper air nozzle plate 15 and the lower air nozzle plate 17 are staggered in the vertical direction. The staggered cooling air nozzles 18 of the upper air nozzle plate 15 and the lower air nozzle plate 17 can further improve the heat exchange rate of the cooling air and enhance the product cooling effect.

[0041] Optionally, in a possible embodiment, the cooling air nozzles 18 on both sides of the inlet and outlet of the upper air nozzle plate 15 and the lower air nozzle plate 17 are tilted toward the inside of the cooling cavity 6. The tilted arrangement of the cooling air nozzles 18 toward the inside of the cooling cavity 6 can prevent the cooling air from flowing out of the final cooling chamber.

[0042] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A high-efficiency final cooling chamber, characterized in that: It includes a final cooling chamber body, an air inlet mechanism and an exhaust mechanism. A cooling cavity which runs through the front and back is provided in the middle of the final cooling chamber body. A mesh belt for conveying products is arranged in the cooling cavity. The air inlet mechanism includes an upper air inlet and a lower air inlet which are arranged on the upper and lower sides of the cooling cavity respectively. The cooling air cools the products synchronously from the upper and lower sides. The exhaust mechanism includes a left air exhaust port and a right air exhaust port which are arranged on the left and right sides of the cooling cavity respectively. The cooling air after cooling the products is synchronously discharged from the cooling cavity from the left and right sides.

2. A high-efficiency final cooling chamber according to claim 1, characterized in that: The air inlet mechanism also includes an air inlet channel and an air inlet fan. The upper air inlet and the lower air inlet are connected in parallel, and the air inlet fan is connected to the upper air inlet and the lower air inlet through the air inlet channel.

3. A high-efficiency final cooling chamber according to claim 2, characterized in that: The exhaust mechanism also includes an exhaust channel and an exhaust fan. The left exhaust port and the right exhaust port are connected in parallel. The exhaust fan is connected to the left exhaust port and the right exhaust port through the exhaust channel.

4. A high-efficiency final cooling chamber according to claim 3, characterized in that: An upper air nozzle plate is provided between the upper air inlet and the cooling cavity, a lower air nozzle plate is provided between the lower air inlet and the cooling cavity, and cooling air nozzles are evenly distributed on the upper air nozzle plate and the lower air nozzle plate.

5. A high-efficiency final cooling chamber according to claim 4, characterized in that: The cooling air nozzles of the upper air nozzle plate and the lower air nozzle plate are staggered in the vertical direction.

6. A high-efficiency final cooling chamber according to claim 5, characterized in that: The cooling air nozzles of the upper air nozzle plate and the lower air nozzle plate located at both sides of the inlet and outlet are arranged to be inclined toward the inner side of the cooling cavity.

7. The high-efficiency final cooling chamber according to claim 1, characterized in that: The final cooling chamber body comprises a final cooling chamber upper chamber and a final cooling chamber lower chamber which are spliced ​​and sealed.

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