Cooling mechanism of box-type heating furnace

Abstract

The utility model discloses a cooling mechanism of a box-type heating furnace, which belongs to the technical field of box-type heating furnaces, and comprises a furnace box, one side of the furnace box is fixedly connected with a heat-collecting and heat-preserving box, and the top surface of the heat-collecting and heat-preserving box is fixedly provided with an electric push rod. The output end of the electric push rod extends into an inner cavity of the heat collecting and preserving box and is fixedly connected with a preserving piston plate, the side face of the preserving piston plate is attached to the inner wall of the heat collecting and preserving box, and a second one-way valve is fixedly installed on the bottom face of the heat collecting and preserving box. According to the utility model, when the interior of the furnace box is cooled, the electric push rod is used for driving the heat preservation piston plate to move upwards so that hot air in the furnace box is guided into the heat collection heat preservation box to be stored, and when materials in the furnace box are heated again, the electric push rod is used for driving the heat preservation piston plate to move downwards so that the hot air is guided into the furnace box again. And the energy consumption required by re-heating is reduced, and the practicability of the cooling mechanism of the box-type heating furnace is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of box-type heating furnaces, and more specifically to a cooling mechanism of a box-type heating furnace. Background Art

[0002] An airplane is a heavier-than-air aircraft with wings and one or more engines that can fly in the atmosphere by its own power. Aircraft can be divided into two categories according to their use: military aircraft and civil aircraft. Military aircraft refers to aircraft used in various military fields, while civil aircraft refers to all aircraft used for non-military purposes. Aircraft are produced by combining a variety of aircraft parts, among which aircraft parts need to be heat-treated in a heating furnace. At the same time, after the heating furnace is finished working, personnel need to wait for the temperature to slowly dissipate before taking the items out of the high-temperature heating furnace. Without a good cooling mechanism, the heat treatment efficiency is affected.

[0003] After searching, the utility model patent with announcement number CN210570020U discloses a rapid cooling mechanism for a high-temperature heating furnace, including a heating furnace, a cooling plate, a metal heat sink, a cold water pipe and a metal filter box, wherein the cooling plate is installed on one side of the heating furnace through a mounting frame, a welded metal heat sink is embedded in the cooling plate, a graphene plate is installed on one end of the metal heat sink through bolts, a cold water pipe is embedded in the graphene plate, an air vent is provided on the metal heat sink, the other end of the metal heat sink is located on one side of the cooling plate, and water pipes are installed on both ends of the cooling plate through a connecting frame; the temperature heat dissipation effect in the heating furnace can be improved, the waiting time for personnel can be reduced, it is convenient for personnel to quickly take objects, the efficiency of sintering or smelting work can be improved, the effect of filtering the air in the heating furnace can be achieved, and the adhesion and damage of the ash remaining after high-temperature sintering or smelting to the heating furnace can be reduced, thereby improving the molding quality of sintered or smelted objects and reducing the adhesion of ash impurities.

[0004] However, the above patent still has the following shortcomings: the heat of the exhaust gas is only absorbed by the graphene plate and water, and the heating furnace needs to be heated again during the second heat treatment, which affects the energy consumption of the heating furnace. For this reason, we propose a cooling mechanism for the box-type heating furnace. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a cooling mechanism for a box-type heating furnace.

[0006] In order to solve the above problems, the utility model adopts the following technical solutions:

[0007] The top end of the inflatable hood is provided with a pressure relief valve, and the bottom end of the pressure relief valve is provided with a pressure relief valve, and the pressure relief valve is provided with a pressure relief valve.

[0008] As a preferred scheme of the utility model, the air intake valve includes an exhaust fan and a water pump fixedly installed on the other side of the furnace box and two support rods fixedly connected to the other side of the furnace box, the ends of the two support rods are fixedly connected with graphene plates, a plurality of heat exchange tubes are fixedly sleeved inside the graphene plates, one end of the plurality of heat exchange tubes is fixedly connected with a water distribution pipe, the other end of the plurality of heat exchange tubes is fixedly connected with a water collecting pipe, the bottom end of the water collecting pipe is fixedly sleeved with a return pipe, the two ends of the water pump are respectively fixedly connected with pumping pipes, one end of one of the pumping pipes is connected to the bottom end of the water distribution pipe, the input end of the exhaust fan extends to the inner cavity of the furnace box, and the output end of the exhaust fan is fixedly connected with an exhaust hood.

[0009] As a preferred solution of the utility model, a ventilation hole is provided on the top surface of the heat-absorbing and heat-insulating box, and a filter cotton is provided in the inner cavity of the ventilation hole.

[0010] As a preferred solution of the utility model, a furnace door is hinged on the front of the furnace box.

[0011] As a preferred solution of the utility model, a sealing door is hinged on the outer side of the filter box.

[0012] As a preferred solution of the utility model, heat dissipation fins are fixedly connected to the outer side of the graphene plate.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] (1) In the utility model, when the furnace box is cooled down, the electric push rod is used to drive the heat preservation piston plate to move up so that the hot air in the furnace box is introduced into the heat-receiving heat preservation box for storage. When the material in the furnace box is heated again, the electric push rod is used to drive the heat preservation piston plate to move down so that the hot air is reintroduced into the furnace box, thereby reducing the energy consumption required for reheating.

[0015] (2) In the utility model, air is extracted from the furnace box through an exhaust fan, and external air is allowed to enter the furnace box through an air inlet valve, and the air flowing in the furnace box is used to cool the inner cavity of the furnace box. In addition, the hot air discharged from the exhaust hood is blown into the graphene plate, and the water in the heat exchange tube is heated by the heat exchange between the graphene plate and the heat exchange tube, thereby achieving the re-absorption and utilization of heat, thereby improving the working quality of the cooling mechanism of the box-type heating furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the furnace box of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the heat exchange tube of the utility model;

[0020] Figure 5 It is a cross-sectional schematic diagram of the filter box of the utility model.

[0021] Description of the numbers in the figure:

[0022] 1. Furnace box; 2. Heat collecting and heat preservation box; 3. Second non-return valve; 4. Return air pipe; 5. First non-return valve; 6. Intake pipe; 7. Filter box; 8. Filter net; 9. Electric push rod; 10. Heat preservation piston plate; 11. Heat absorption mechanism; 12. Exhaust fan; 13. Inlet valve; 14. Exhaust hood; 15. Support rod; 16. Graphene plate; 17. Heat dissipation fins; 18. Heat exchange tube; 19. Water distribution pipe; 20. Water collecting pipe; 21. Return water pipe; 22. Water pump; 23. Water extraction pipe; 24. Sealing door; 25. Furnace door; 26. Air vent; 27. Filter cotton. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] Example:

[0027] See also Figure 1-5 A cooling mechanism of a box-type heating furnace comprises a furnace box 1, a heat collecting and heat preservation box 2 is fixedly connected to one side of the furnace box 1, an electric push rod 9 is fixedly installed on the top surface of the heat collecting and heat preservation box 2, the output end of the electric push rod 9 extends to the inner cavity of the heat collecting and heat preservation box 2 and is fixedly connected to a heat preservation piston plate 10, the side surface of the heat preservation piston plate 10 is in contact with the inner wall of the heat collecting and heat preservation box 2, a second one-way valve 3 is fixedly installed on the bottom surface of the heat collecting and heat preservation box 2, and the bottom end of the second one-way valve 3 is fixedly installed. A return air pipe 4 is connected, the end of which extends to the inner cavity of the furnace box 1, a first one-way valve 5 is fixedly installed at the bottom of the heat-collecting and heat-insulating box 2, the bottom end of the first one-way valve 5 is fixedly connected to an intake pipe 6, the end of the intake pipe 6 extends to the inner cavity of the furnace box 1, a filter box 7 is fixedly sleeved in the middle of the intake pipe 6, the inner cavity of the filter box 7 is provided with a filter screen 8, a heat absorption mechanism 11 is provided on the other side of the furnace box 1, and an intake valve 13 is fixedly sleeved on the other side of the furnace box 1.

[0028] In this embodiment, the second one-way valve 3 can only allow the hot air in the heat-receiving and heat-insulating box 2 to be introduced into the inner cavity of the furnace box 1 from the return air pipe 4. In addition, the first one-way valve 5 can only allow the hot air in the furnace box 1 to enter the inner cavity of the heat-receiving and heat-insulating box 2 from the intake pipe 6.

[0029] For details, please refer to Figure 1 , Figure 3 and Figure 4The air intake valve 13 includes an exhaust fan 12 and a water pump 22 fixedly installed on the other side of the furnace box 1, and two support rods 15 fixedly connected to the other side of the furnace box 1, and the ends of the two support rods 15 are fixedly connected with a graphene plate 16, and the inside of the graphene plate 16 is fixedly sleeved with a plurality of heat exchange tubes 18, one end of the plurality of heat exchange tubes 18 is fixedly connected with a water distribution pipe 19, and the other end of the plurality of heat exchange tubes 18 is fixedly connected with a water collecting pipe 20, and the bottom end of the water collecting pipe 20 is fixedly sleeved with a return water pipe 21, and the two ends of the water pump 22 are respectively fixedly connected with pumping pipes 23, and one end of a pumping pipe 23 is connected to the bottom end of the water distribution pipe 19, the input end of the exhaust fan 12 extends to the inner cavity of the furnace box 1, and the output end of the exhaust fan 12 is fixedly connected with an exhaust hood 14.

[0030] In this embodiment, the end of another water pumping pipe 23 is connected to an external water tank, and the water that has absorbed heat is discharged through the return pipe 21, thereby collecting hot water.

[0031] For details, please refer to Figure 1 and Figure 3 A vent hole 26 is provided on the top surface of the heat collecting and heat preservation box 2 , and a filter cotton 27 is provided in the inner cavity of the vent hole 26 .

[0032] In this embodiment, the vent hole 26 is used to prevent negative pressure from being generated in the upper part of the inner cavity of the heat-receiving and heat-insulating box 2 to affect the movement of the heat-receiving and heat-insulating piston plate 10. In addition, the filter cotton 27 is used to prevent dust and debris from falling into the inner cavity of the heat-receiving and heat-insulating box 2.

[0033] For details, please refer to Figure 2 A furnace door 25 is hinged on the front of the furnace box 1.

[0034] In this embodiment, loading and unloading of materials are carried out in the furnace box 1 by opening the furnace door 25 .

[0035] For details, please refer to Figure 5 A sealing door 24 is hinged on the outer side of the filter box 7.

[0036] In this embodiment, the impurities filtered by the filter screen 8 are cleaned by opening the sealing door 24 .

[0037] For details, please refer to Figure 4 The outer side of the graphene plate 16 is fixedly connected with a heat dissipation fin 17 .

[0038] In this embodiment, the residual heat on the graphene plate 16 is dissipated through the heat dissipation fins 17 .

[0039] Working principle: when it is necessary to cool down the furnace box 1, first start the electric push rod 9 to drive the heat preservation piston plate 10 to move upward, and use the upward movement of the heat preservation piston plate 10 to generate negative pressure in the lower part of the inner cavity of the heat-receiving and heat-receiving box 2, and use the negative pressure in the lower part of the inner cavity of the heat-receiving and heat-receiving box 2 to make the suction pipe 6 generate suction, so that the high-temperature gas in the furnace box 1 enters the inner cavity of the heat-receiving and heat-receiving box 2, and at the same time, use the filter screen 8 in the filter box 7 to filter impurities in the high-temperature gas. Then, when the heat-receiving and heat-receiving box 2 is full of hot gas, the inner cavity of the furnace box 1 becomes a negative pressure state. At this time, the air inlet valve 13 is opened, and the exhaust fan 12 is started to extract air from the inner cavity of the furnace box 1, so as to facilitate the cooling of the furnace box 1. The suction force of the exhaust fan 12 allows the external air to enter the furnace box 1 from the air inlet valve 13, and the heat is taken out by the air flowing in the furnace box 1. At the same time, the hot air is blown onto the graphene plate 16 through the exhaust hood 14, and the heat is introduced into the heat exchange tube 18 by the graphene plate 16. Then, the water pump 22 is started to introduce water from the water extraction pipe 23 and the water distribution pipe 19 into the heat exchange tube 18, and the water is heated by the heat exchange between the graphene plate 16 and the heat exchange tube 18, so as to recover the heat again. Finally, the heated water is discharged through the water collecting pipe 20 and the water return pipe 21. After cooling, the furnace door 25 is opened to take out the materials in the furnace box 1;

[0040] When the material is loaded into the furnace box 1 again, the electric push rod 9 is started to drive the insulation piston plate 10 to move downward, and the insulation piston plate 10 is used to squeeze the hot air in the inner cavity of the heat-absorbing insulation box 2 into the furnace box 1 through the second one-way valve 3 and the return air pipe 4, so as to continue to heat treat the material.

[0041] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the utility model according to the technical solution and improved ideas of the utility model, which should be included in the protection scope of the utility model.

Claims

1. A cooling mechanism for a box-type heating furnace, comprising a furnace box (1), characterized in that: A heat collecting and heat preservation box (2) is fixedly connected to one side of the furnace box (1), an electric push rod (9) is fixedly installed on the top surface of the heat collecting and heat preservation box (2), an output end of the electric push rod (9) extends to the inner cavity of the heat collecting and heat preservation box (2) and is fixedly connected to a heat preservation piston plate (10), the side surface of the heat preservation piston plate (10) is in contact with the inner wall of the heat collecting and heat preservation box (2), a second one-way valve (3) is fixedly installed on the bottom surface of the heat collecting and heat preservation box (2), the bottom end of the second one-way valve (3) is fixedly connected to a return air pipe (4), and the return air pipe (4 ) extends to the inner cavity of the furnace box (1), a first one-way valve (5) is fixedly installed at the bottom of the heat-absorbing and heat-insulating box (2), the bottom end of the first one-way valve (5) is fixedly connected to an air intake pipe (6), the end of the air intake pipe (6) extends to the inner cavity of the furnace box (1), a filter box (7) is fixedly sleeved at the middle of the air intake pipe (6), the inner cavity of the filter box (7) is provided with a filter screen (8), a heat absorption mechanism (11) is provided on the other side of the furnace box (1), and an air intake valve (13) is fixedly sleeved on the other side of the furnace box (1).

2. The cooling mechanism of a box-type heating furnace according to claim 1 is characterized in that: The air inlet valve (13) comprises an exhaust fan (12) and a water pump (22) fixedly mounted on the other side of the furnace box (1), and two support rods (15) fixedly connected to the other side of the furnace box (1), the ends of the two support rods (15) are fixedly connected to a graphene plate (16), the interior of the graphene plate (16) is fixedly sleeved with a plurality of heat exchange tubes (18), one end of the plurality of heat exchange tubes (18) is fixedly connected to a water distribution pipe (19), and the plurality of heat exchange tubes (18) are fixedly sleeved with a water distribution pipe (19). The other end of the heat pipe (18) is fixedly connected to a water collecting pipe (20), the bottom end of the water collecting pipe (20) is fixedly sleeved with a return pipe (21), the two ends of the water pump (22) are respectively fixedly connected to water pumping pipes (23), one end of the water pumping pipe (23) is connected to the bottom end of the water distribution pipe (19), the input end of the exhaust fan (12) extends to the inner cavity of the furnace box (1), and the output end of the exhaust fan (12) is fixedly connected to an exhaust hood (14).

3. The cooling mechanism of a box-type heating furnace according to claim 1 is characterized in that: A vent hole (26) is provided on the top surface of the heat-absorbing and heat-insulating box (2), and a filter cotton (27) is provided in the inner cavity of the vent hole (26).

4. The cooling mechanism of a box-type heating furnace according to claim 1, characterized in that: A furnace door (25) is hingedly connected to the front of the furnace box (1).

5. The cooling mechanism of a box-type heating furnace according to claim 1 is characterized in that: A sealing door (24) is hingedly connected to the outer side of the filter box (7).

6. The cooling mechanism of a box-type heating furnace according to claim 2, characterized in that: The outer side of the graphene plate (16) is fixedly connected with a heat dissipation fin (17).

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