A three-dimensional circulating spray cooling device for high-temperature furnaces

Abstract

This utility model discloses a three-dimensional circulating spray cooling device for a high-temperature furnace, including a high-temperature furnace body. A water storage tank is fixedly mounted on the top of the high-temperature furnace body. Several water guide pipes are equidistantly mounted on the left and right sides of the bottom rear side of the water storage tank. Each water guide pipe extends downward into the furnace cavity and has a rotating seat rotatably fitted at its bottom end. A water mist nozzle is fixedly connected to the bottom end of each rotating seat. A condensation passage is provided in the front middle part of the top side of the furnace cavity. A docking pipe is fixedly connected to the front opening of the condensation passage. A water collection tank is fixedly connected to the front side of the docking pipe. A water pump is mounted on the front middle part of the top of the water collection tank. A return pipe is fixedly connected to the top output of the water pump. The rear end of the return pipe is fixedly connected to the water storage tank. The device achieves rapid cooling by absorbing heat through water evaporation while condensing and recovering water vapor for recycling.

Description

Technical Field

[0001] This utility model relates to the field of high-temperature furnace technology, specifically a three-dimensional circulating spray cooling device for high-temperature furnaces. Background Technology

[0002] High-temperature furnaces are used for heating and heat treatment in laboratories and testing facilities of various industrial and mining enterprises and scientific research units. They are insulated by natural air, lightweight and easy to transport, and heat up quickly. They use radiation heating from two sides inside the furnace, resulting in uniform temperature distribution. The furnace body and intelligent controller are designed separately, using imported temperature control instruments with a brand-new digital display. The temperature is set digitally, and the intelligent control output reduces visual reading and human operation errors, greatly improving work efficiency. Most existing high-temperature furnaces are box furnaces with a square furnace cavity. When in use, a graphite crucible is filled with material and placed horizontally inside. The partition is closed and a vacuum is drawn for heating. However, the rate of natural cooling of the furnace cavity and crucible after heating is low and time-consuming. Immersing the crucible in the cooling process is irritating and the procedure is relatively dangerous, which is not safe or convenient. The water vapor evaporated at high temperatures also affects the environmental humidity and causes some water waste, which is not environmentally friendly or clean, resulting in a decrease in overall smelting efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a three-dimensional circulating spray cooling device for high-temperature furnaces, which uses water circulation evaporation for cooling. This eliminates the need to remove the crucible and immerse it in water for cooling, reducing operational steps and making the process safer and more stable. It also reduces the waste of evaporated water vapor, making it more environmentally friendly and improving the overall efficiency of smelting.

[0004] To achieve the above objectives, a three-dimensional circulating spray cooling device for a high-temperature furnace is provided, comprising a high-temperature furnace body covered with an insulating shell. Several furnace chambers are equidistantly arranged on the upper front side of the furnace body, each chamber containing a crucible. Air ducts connect the left and right sides of each furnace chamber. An air inlet and an air outlet are respectively located at the center of the left and right sides of the furnace body, both connected to the air ducts. A water storage tank is fixedly mounted on the top of the furnace body. Several water guide pipes are equidistantly arranged on the rear bottom side of the water storage tank, extending downwards into the furnace chambers. Each water guide pipe has a rotating base at its bottom end, and a water mist nozzle is fixedly connected to the bottom end of each rotating base. A condensation passage is provided on the front middle part of the top side of each furnace chamber. The condensation passage opens in a funnel shape towards the furnace chamber, and the upper section of the condensation passage slopes downwards from back to front. The furnace is configured such that a connecting pipe is fixedly connected to the front opening of the condensation passage, and a water collection tank is fixedly connected to the front of the connecting pipe. A water pump is installed on the front of the top of the water collection tank, and a return pipe is fixedly connected to the top output end of the water pump. The top and rear ends of the return pipe are both fixedly connected to the water storage tank. Water mist is sprayed on one side by water mist nozzles installed on the rear of the top of the furnace cavity. Water mist is then formed above the crucible and evaporates by absorbing heat. The water vapor condenses into liquid by contacting the top wall in the condensation passage on the front of the top of the furnace cavity and flows into the collection tank by gravity. The water pump then pumps the recovered condensate back into the water storage tank through the return pipe and guides it downward to the water mist nozzles to continue spraying and cooling, achieving the purpose of water circulation cooling. This eliminates the need to remove the crucible for immersion in water for cooling, reduces operation steps, and is safer and more stable. It also reduces the waste of evaporated water vapor, is more environmentally friendly, and improves the overall smelting efficiency.

[0005] According to the aforementioned three-dimensional circulating spray cooling device for a high-temperature furnace, each crucible is equipped with a heat-resistant pad at its bottom, and the heat-resistant pad is partially embedded in the inner wall of the high-temperature furnace body to prevent heat transfer and loss.

[0006] According to the aforementioned three-dimensional circulating spray cooling device for a high-temperature furnace, a ring cover is threadedly connected to the outer edge of the opposite side of both the air inlet and outlet ducts, and a torsion handle is fixedly connected to the center of the opposite side of each ring cover. This provides sealing protection when not in use and allows for quick removal during operation.

[0007] According to the aforementioned three-dimensional circulating spray cooling device for a high-temperature furnace, the front side of the furnace cavity is isolated and covered with partitions. Hinges are fitted on the right side of each partition to rotate with the high-temperature furnace body. Handles are fixedly connected to the front left side of each partition, and heat-insulating sleeves are fitted onto the outer side of the middle portion of each handle. This facilitates safe and quick sealing of the furnace cavity for operation by the operator.

[0008] According to the aforementioned three-dimensional circulating spray cooling device for a high-temperature furnace, L-shaped pads are symmetrically fixed to the bottom of the left and right sides of the high-temperature furnace body, and anti-slip pads are fixedly connected to the bottom of each L-shaped pad. This ensures the stable placement of the entire device and prevents the bottom of the high-temperature furnace body from fully contacting the placement surface, thus avoiding dust contamination and protecting the placement surface from high temperatures.

[0009] According to the aforementioned three-dimensional circulating spray cooling device for a high-temperature furnace, a water inlet is provided at the center of the top of the water storage tank, and a water inlet valve is installed inside the water inlet. This facilitates rapid replenishment of water.

[0010] According to the aforementioned three-dimensional circulating spray cooling device for a high-temperature furnace, a heat-insulating plate is embedded and fixed at the center of the top of the high-temperature furnace body. The water pipes pass through the heat-insulating plate vertically and are slidably connected to it. This prevents high-temperature conduction into the water storage tank, which could cause the water temperature inside to rise and thus affect the subsequent spray evaporation cooling effect.

[0011] According to the aforementioned three-dimensional circulating spray cooling device for a high-temperature furnace, the water mist nozzles are made of graphite material. It can operate stably in high-temperature environments.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] In this invention, water mist nozzles are installed on the rear top of the furnace cavity for single-sided spraying. Water mist is then formed above the crucible and evaporates by absorbing heat. The water vapor condenses into liquid through the condensation passage on the front side of the furnace top and flows into the collection chamber by gravity. The recovered condensate is then pumped back into the water storage chamber through the return pipe and guided downwards to the water mist nozzles for continued spraying and cooling, achieving the purpose of water circulation cooling. This eliminates the need to remove the crucible for immersion in water for cooling, reducing operational steps and making the process safer and more stable. It also reduces the waste of evaporated water vapor, making it more environmentally friendly and improving the overall smelting efficiency.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a partial cross-sectional view of a three-dimensional circulating spray cooling device for a high-temperature furnace according to this utility model;

[0017] Figure 2 This is a schematic diagram showing the positional distribution of the crucible and air duct in a three-dimensional circulating spray cooling device for a high-temperature furnace according to this utility model.

[0018] Figure 3 This is a schematic diagram showing the distribution of spray nozzles and collection chambers in a three-dimensional circulating spray cooling device for a high-temperature furnace according to this utility model.

[0019] Figure 4 This is a schematic diagram of the overall structure of a three-dimensional circulating spray cooling device for a high-temperature furnace according to this utility model.

[0020] In the diagram: 1. High-temperature furnace body; 2. Insulation shell; 3. Furnace cavity; 4. Crucible; 5. Air duct; 6. Air inlet; 7. Air outlet; 8. Water storage tank; 9. Water guide pipe; 10. Rotating seat; 11. Water mist nozzle; 12. Condensation passage; 13. Connecting pipe; 14. Collection chamber; 15. Water pump; 16. Return pipe; 17. Heat-resistant pad; 18. Ring cover; 19. Twist handle; 20. Partition plate; 21. Handle; 22. Heat insulation sleeve; 23. L-shaped pad; 24. Anti-slip pad; 25. Water supply valve; 26. Heat insulation clamp. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4This utility model provides a technical solution: a three-dimensional circulating spray cooling device for a high-temperature furnace, comprising a high-temperature furnace body 1, an insulating shell 2 covering the outer side of the high-temperature furnace body 1, several furnace chambers 3 equidistantly arranged on the upper front side of the high-temperature furnace body 1, each furnace chamber 3 equipped with a crucible 4, and air ducts 5 penetrating and connecting the left and right sides of the furnace chambers 3, with an air inlet 6 and an air outlet 7 respectively located at the center of the left and right sides of the high-temperature furnace body 1, both of which are connected to the air ducts 5, and a ring cover 18 threadedly connected to the outer edge of the opposite side of the air inlet 6 and the air outlet 7, and a torsion handle 19 fixedly connected to the center of the opposite side of the ring cover 18, a water storage tank 8 fixedly mounted on the top of the high-temperature furnace body 1, a water inlet located at the center of the top of the water storage tank 8, and a water inlet valve 25 installed inside the water inlet, and several furnace chambers 3 equidistantly arranged on the rear bottom side of the water storage tank 8. Water pipes 9 extend downward into the furnace cavity 3, and rotating seats 10 are rotatably fitted at their bottom ends. Water mist nozzles 11 are fixedly connected to the bottom ends of rotating seats 10. Water mist nozzles 11 are made of graphite material. A condensation passage 12 is provided on the front middle part of the top side of the furnace cavity 3. The opening of the condensation passage 12 facing the furnace cavity 3 is arranged in a funnel shape. The upper section of the condensation passage 12 is inclined downward from back to front. A docking pipe 13 is fixedly connected to the front opening of the condensation passage 12. A water collection tank is fixedly connected to the front side of the docking pipe 13. A water pump 15 is installed on the front middle part of the top of the water collection tank. A return pipe 16 is fixedly connected to the top output end of the water pump 15. The rear end of the top side of the return pipe 16 is fixedly connected to the water storage tank 8. The water vapor is condensed, recovered, and recycled at the same time, and the water is rapidly cooled by absorbing heat through water evaporation.

[0023] Each crucible 4 is provided with a heat-resistant pad 17 at the bottom. The heat-resistant pad 17 is partially embedded in the inner wall of the high-temperature furnace body 1. A heat-insulating plate 26 is embedded and fixed at the center of the top of the high-temperature furnace body 1. The water pipes 9 pass through the heat-insulating plate 26 from top to bottom and slide vertically with it to keep the heat insulated and prevent heat loss.

[0024] The front side of the furnace cavity 3 is isolated and covered by partitions 20. The right side of each partition 20 is equipped with hinges that rotate with the high-temperature furnace body 1. The left side of each partition 20 is fixedly connected to a handle 21. The outer side of the middle part of each handle 21 is fitted with a heat insulation sleeve 22. The partitions seal the opening on the front side of the furnace cavity to prevent heat loss from being too fast.

[0025] L-shaped pads 23 are symmetrically fixed to the bottom of the left and right sides of the high-temperature furnace body 1. Anti-slip pads 24 are fixedly connected to the bottom of each L-shaped pad 23 to lift the entire high-temperature furnace body and prevent its bottom surface from directly contacting the placement surface.

[0026] Working principle: In this invention, water mist nozzles 11 are installed on the rear top of the furnace cavity 3 for single-sided spraying. Water mist is then formed above the crucible 4 and evaporates by absorbing heat. The water vapor condenses into liquid through the condensation passage 12 on the front side of the top of the furnace cavity 3 and flows into the collection chamber 14 by gravity. Then, the water pump 15 uses a return pipe 16 to reintroduce the recovered condensate into the water storage chamber 8 and guides it downward to the water mist nozzles 11 to continue spraying and cooling, achieving the purpose of water circulation cooling. It eliminates the need to remove the crucible 4 for immersion in water for cooling, reducing operation steps and making it safer and more stable. It also reduces the waste of evaporated water vapor, making it more environmentally friendly and improving the overall smelting efficiency.

[0027] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A three-dimensional circulating spray cooling device for a high-temperature furnace, comprising a high-temperature furnace body (1), characterized in that, The outer side of the high-temperature furnace body (1) is covered with a heat-insulating shell (2). Several furnace chambers (3) are equidistantly arranged on the upper front side of the high-temperature furnace body (1). Each furnace chamber (3) is equipped with a crucible (4). Air ducts (5) are connected through the left and right sides of the furnace chamber (3). An air inlet (6) and an air outlet (7) are respectively provided at the center of the left and right sides of the high-temperature furnace body (1), and both are connected to the air ducts (5). The top of the high-temperature furnace body (1) is fixedly equipped with a water storage tank (8). Several water guide pipes (9) are equidistantly mounted on the bottom rear side of the water storage tank (8). The water guide pipes (9) all extend downward into the furnace cavity (3) and are rotatably fitted with a rotating seat (10) at their bottom ends. The bottom ends of the rotating seats (10) are all fixedly connected with water mist nozzles (11). The furnace cavity (3) is provided with a condensation passage (12) on the top front side. The condensation passage (12) is arranged in a funnel shape with its opening facing the furnace cavity (3). The upper section of the condensation passage (12) is inclined downward from back to front. The front opening of the condensation passage (12) is connected to a docking pipe (13). The front side of the docking pipe (13) is connected to a water collection tank. A water pump (15) is installed on the top front side of the water collection tank. The top output end of the water pump (15) is connected to a return pipe (16). The top rear end of the return pipe (16) is connected to a water storage tank (8).

2. The three-dimensional circulating spray cooling device for a high-temperature furnace as described in claim 1, characterized in that: Each crucible (4) is provided with a heat-resistant pad (17) at the bottom, and the heat-resistant pad (17) is partially embedded in the inner wall of the high-temperature furnace body (1).

3. The three-dimensional circulating spray cooling device for a high-temperature furnace as described in claim 1, characterized in that: The outer edges of the air inlet (6) and air outlet (7) on opposite sides are threaded with ring caps (18), and a torsion handle (19) is fixedly connected to the center of the opposite side of the ring caps (18).

4. The three-dimensional circulating spray cooling device for a high-temperature furnace as described in claim 1, characterized in that: The front side of the furnace cavity (3) is isolated and covered by a partition (20). The right side of the partition (20) is equipped with a hinge that rotates with the high-temperature furnace body (1). The left side of the partition (20) is fixedly connected with a handle (21), and the outer side of the middle part of the handle (21) is fitted with a heat insulation sleeve (22).

5. The three-dimensional circulating spray cooling device for a high-temperature furnace as described in claim 1, characterized in that: The high-temperature furnace body (1) has L-shaped pads (23) fixed symmetrically on the bottom of its left and right sides, and anti-slip pads (24) are fixedly connected to the bottom of each L-shaped pad (23).

6. The three-dimensional circulating spray cooling device for a high-temperature furnace as described in claim 1, characterized in that: The water storage tank (8) is provided with a water inlet at the top center, and a water inlet valve (25) is installed inside the water inlet.

7. The three-dimensional circulating spray cooling device for a high-temperature furnace as described in claim 1, characterized in that: A heat insulation plate (26) is fitted and fixed at the top center of the high-temperature furnace body (1), and the water pipes (9) all pass through the heat insulation plate (26) and slide vertically connected to it.

8. The three-dimensional circulating spray cooling device for a high-temperature furnace as described in claim 1, characterized in that: The water mist nozzle (11) is made of graphite material.

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