Carburizing and quenching multi-purpose furnace front chamber air cooling circulating device

Abstract

This utility model relates to the field of carburizing and quenching technology, and discloses a multi-purpose air-cooled circulation device for the front chamber of a carburizing and quenching furnace; it includes a quenching furnace front chamber, and further includes: a first connecting pipe connected to the right side of the quenching furnace front chamber, the other end of the first connecting pipe being connected to a filter box; and a filter structure disposed inside the filter box; after the workpiece is quenched, the air in the quenching furnace front chamber is adsorbed by a fan, which allows the hot air to adsorb oil, odors and harmful gases in the hot air when passing through the filter structure. At the same time, when the hot air is transported again, the heat of the hot air can be transferred through the cooling structure inside the cooling box, so that the temperature of the hot air is reduced, and then transported back to the quenching furnace front chamber through the second connecting pipe, which can quickly reduce the temperature of the quenching furnace front chamber, accelerate the cooling rate of the workpiece, and prevent the workpiece from being oxidized and discolored due to prolonged high temperature.

Description

Technical Field

[0001] This utility model relates to the field of carburizing and quenching technology, specifically to a multi-purpose air-cooled circulation device for the front chamber of a carburizing and quenching furnace. Background Technology

[0002] Carburizing and quenching is a common heat treatment process for metallic materials. It can give the surface of carburized workpieces high hardness and improve their wear resistance. Traditional processes mainly include: low-temperature tempering, pre-cooling direct quenching, single-heat quenching, high-temperature tempering after carburizing, secondary quenching and cold treatment, and induction heating after carburizing.

[0003] After the workpiece is quenched, its surface temperature may still be very high due to the large amount of residual heat. If the workpiece is not cooled down quickly, it will oxidize and discolor rapidly when exposed to air. At the same time, the high temperature in the front chamber will cause the workpiece to cool down slowly, thus affecting production efficiency. To address this, we propose a multi-purpose furnace front chamber air cooling circulation device for carburizing and quenching. Utility Model Content

[0004] The purpose of this invention is to provide a multi-purpose furnace front chamber air cooling circulation device for carburizing and quenching, so as to solve the problems existing in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-purpose air-cooled circulation device for a carburizing and quenching furnace front chamber, comprising a quenching furnace front chamber, and further comprising:

[0006] A first connecting pipe is connected to the right side of the front chamber of the quenching furnace, and the other end of the first connecting pipe is connected to a filter box.

[0007] The filter structure is installed inside the filter box, and the top of the filter box is connected to a third connecting pipe.

[0008] A cooling box is connected to the other end of the third connecting pipe. A cooling structure is provided on the rear side of the cooling box. A water vapor separator is connected to the left side of the cooling box through a connecting pipe. A fan is connected to the left side of the water vapor separator through a connecting pipe.

[0009] A second connecting pipe is connected to the left side of the fan, and the other end of the second connecting pipe is connected to the left side of the front chamber of the quenching furnace.

[0010] Preferably, the filtration structure includes a collection box slidably connected inside the filter box, and two activated carbon plates slidably connected inside the filter box, with a sealing gasket provided at the contact point between the activated carbon plates and the filter box.

[0011] Preferably, the cooling structure includes a plurality of heat sinks that extend through the interior of the cooling box, and a fan is provided on the rear side of the heat sinks.

[0012] Preferably, a limiting plate is rotatably connected to the rear side of the filter box, and a fixing block is fixedly connected to the right side of the filter box.

[0013] Preferably, the top of the cooling box is provided with a water inlet, the rear side of the cooling box is connected to a drain pipe, and the surface of the drain pipe is provided with a drain valve.

[0014] Preferably, the first connecting pipe and the second connecting pipe are connected by several branch pipes, and the branch pipes of the first connecting pipe and the second connecting pipe are connected to the front chamber of the quenching furnace.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] After the workpiece is quenched, this invention uses a fan to adsorb the air in the front chamber of the quenching furnace. When the hot air passes through the filter structure, oil, odors and harmful gases in the hot air are adsorbed. At the same time, when the hot air is transported again, the heat of the hot air is transferred through the cooling structure inside the cooling box, which lowers the temperature of the hot air. Then, it is transported back to the front chamber of the quenching furnace through the second connecting pipe. This allows the front chamber of the quenching furnace to cool down quickly, accelerates the cooling rate of the workpiece, and prevents the workpiece from being oxidized and discolored due to prolonged high temperature. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the three-dimensional rear view structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the cooling box in this utility model;

[0020] Figure 4 This is a schematic diagram of the extended activated carbon plate in this utility model.

[0021] In the diagram: 1. Quenching furnace front chamber; 2. First connecting pipe; 3. Second connecting pipe; 4. Filter structure; 41. Collection box; 42. Activated carbon plate; 5. Third connecting pipe; 6. Cooling box; 7. Cooling structure; 71. Heat sink; 72. Fan; 8. Water vapor separator; 9. Blower; 10. Water pipe; 11. Water inlet; 12. Limiting plate; 13. Fixing block; 14. Filter box. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 As shown, a multi-purpose furnace front chamber air-cooling circulation device for carburizing and quenching includes a quenching furnace front chamber 1. A first connecting pipe 2 is connected to the right side of the quenching furnace front chamber 1, and a filter box 14 is connected to the other end of the first connecting pipe 2. A limiting plate 12 is rotatably connected to the rear side of the filter box 14, and a fixing block 13 is fixedly connected to the right side of the filter box 14, which can limit the activated carbon plate 42. When the limiting plate 12 rotates clockwise to the surface of the fixing block 13, the limitation on the activated carbon plate 42 can be released, thus facilitating disassembly. A filter structure 4 is provided inside the filter box 14, which includes a collection box 41 slidably connected inside the filter box 14. Two activated carbon plates are slidably connected inside the filter box 14. 42. A sealing gasket is provided at the joint between the activated carbon plate 42 and the filter box 14. When the gas passes through the activated carbon plate 42, it can adsorb oil, odor and harmful gases in the air, further purify the air, and prevent pollutants from entering the subsequent cooling system or flowing back to the front chamber and affecting the quality of the workpiece. At the same time, the collection box 41 can collect solid impurities in the air, which is convenient for regular disassembly and cleaning, and avoids the accumulation of impurities from affecting the filtration effect. The top of the filter box 14 is connected to a third connecting pipe 5, and the other end of the third connecting pipe 5 is connected to a cooling box 6. A cooling structure 7 is provided on the rear side of the cooling box 6. The cooling structure 7 includes several heat sinks 71 that penetrate through the interior of the cooling box 6. A fan 72 is provided on the rear side of the heat sinks 71.

[0024] When the hot air drawn in raises the temperature of the coolant, the coolant transfers the temperature to the heat sink 71. The contact between the heat sink 71 and the air accelerates the heat exchange efficiency, allowing the coolant to cool down quickly. At the same time, the fan 72 accelerates the airflow, further improving the heat dissipation effect and ensuring that the air is fully cooled as it passes through the cooling box 6. The cooling box 6 contains coolant. The left side of the cooling box 6 is connected to a water vapor separator 8 via a connecting pipe. The water vapor separator 8 is existing technology and will not be described further in this solution. The left side of the water vapor separator 8 is connected to a fan 9 via a connecting pipe. The left side of the fan 9 is connected to a second connecting pipe 3. The other end of the second connecting pipe 3 is connected to the left side of the quenching furnace front chamber 1.

[0025] The top of the cooling tank 6 is provided with a water inlet 11, and the rear side of the cooling tank 6 is connected to a drain pipe 10. The surface of the drain pipe 10 is provided with a drain valve, which facilitates the timely addition or replacement of coolant to maintain the normal working temperature of the cooling structure 7. At the same time, the drain valve on the surface of the drain pipe 10 can facilitate the discharge of used coolant for maintenance and replacement.

[0026] The first connecting pipe 2 and the second connecting pipe 3 are connected by several branch pipes, and the branch pipes of the first connecting pipe 2 and the second connecting pipe 3 are connected to the front chamber 1 of the quenching furnace. This allows for the uniform intake of hot air from the front chamber 1 of the quenching furnace and the uniform distribution of cooling air within the front chamber 1 of the quenching furnace, ensuring uniform cooling of the workpiece.

[0027] Working Principle: After the workpiece is quenched, the fan 9 is turned on to create negative pressure inside the cooling box 6 and the filter box 14. Simultaneously, hot air from the front chamber 1 of the quenching furnace is drawn out through the first connecting pipe 2 and enters the filter box 14. Then, it is conveyed upwards through the third connecting pipe 5. During this conveying process, the activated carbon plate 42 filters out oil, harmful gases, and odors, further purifying the air. Subsequently, the hot air is conveyed through the third connecting pipe 5 to the interior of the cooling box 6. Upon contact with the coolant, heat is transferred to the coolant. As the coolant temperature rises, the coolant temperature decreases due to the contact between the heat sink 71 and the coolant. The air is transferred to the heat sink 71, which accelerates the heat exchange efficiency and cools the coolant quickly. At the same time, the rotation of the fan 72 accelerates the airflow, further improving the heat dissipation effect and ensuring that the air dissipates heat fully when passing through the cooling box 6. As a result, the temperature of the air will drop significantly when it is delivered from the cooling box 6. Then, the air is delivered to the water vapor separator 8 through the connecting pipe for water vapor separation. Next, it is delivered to the fan 9 through the connecting pipe, and then blown into the front chamber 1 of the quenching furnace through the second connecting pipe 3. In this way, the cooled air is evenly sent back into the front chamber 1 of the quenching furnace, which rapidly reduces the temperature inside the front chamber 1 of the quenching furnace, thereby accelerating the cooling of the workpiece.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-purpose air-cooled circulation device for a carburizing and quenching furnace front chamber, comprising a quenching furnace front chamber (1), characterized in that, Also includes: A first connecting pipe (2) is connected to the right side of the front chamber (1) of the quenching furnace, and the other end of the first connecting pipe (2) is connected to a filter box (14). The filter structure (4) is installed inside the filter box (14), and the top of the filter box (14) is connected to a third connecting pipe (5). A cooling box (6) is connected to the other end of the third connecting pipe (5). A cooling structure (7) is provided on the rear side of the cooling box (6). A water vapor separator (8) is connected to the left side of the cooling box (6) through a connecting pipe. A fan (9) is connected to the left side of the water vapor separator (8) through a connecting pipe. The second connecting pipe (3) is connected to the left side of the fan (9), and the other end of the second connecting pipe (3) is connected to the left side of the quenching furnace front chamber (1).

2. The carburizing and quenching multi-purpose furnace front chamber air-cooling circulation device according to claim 1, characterized in that: The filter structure (4) includes a collection box (41) that is slidably connected inside the filter box (14). Two activated carbon plates (42) are slidably connected inside the filter box (14). A sealing gasket is provided at the joint between the activated carbon plates (42) and the filter box (14).

3. The carburizing and quenching multi-purpose furnace front chamber air-cooling circulation device according to claim 1, characterized in that: The cooling structure (7) includes several heat sinks (71) that are disposed inside the cooling box (6), and a fan (72) is provided on the rear side of the heat sinks (71).

4. The carburizing and quenching multi-purpose furnace front chamber air-cooling circulation device according to claim 1, characterized in that: A limiting piece (12) is rotatably connected to the rear side of the filter box (14), and a fixing block (13) is fixedly connected to the right side of the filter box (14).

5. The carburizing and quenching multi-purpose furnace front chamber air-cooling circulation device according to claim 1, characterized in that: The top of the cooling box (6) is provided with a water inlet (11), and the rear side of the cooling box (6) is connected to a drain pipe (10), and a drain valve is provided on the surface of the drain pipe (10).

6. The carburizing and quenching multi-purpose furnace front chamber air-cooling circulation device according to claim 1, characterized in that: The first connecting pipe (2) and the second connecting pipe (3) are connected by several branch pipes, and the branch pipes of the first connecting pipe (2) and the second connecting pipe (3) are connected to the front chamber (1) of the quenching furnace.

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