Novel homogeneous heat transfer type pit furnace inner container device

Abstract

The utility model relates to the technical field of heating equipment, in particular to a novel homogeneous heat transfer type pit furnace inner container device which comprises an inner container body, an outer ring is installed at the top end of the outer side of the inner container body, an annular groove is formed in the top of the outer ring, and limiting sliding grooves are symmetrically formed in the inner wall of one side of the annular groove. A sealing assembly is arranged in the annular groove and used for ensuring the sealing performance of the connecting position of the inner container body and the furnace cover. When the furnace cover is installed at the top of the inner container body, the bottom end of the furnace cover is located in the annular groove, the gravity of the furnace cover is applied to the telescopic spring through the installation ring, the telescopic spring is compressed, the installation ring slides downwards by a certain distance under the cooperation of the limiting sliding groove and the limiting sliding block, and the furnace cover is fixed. After the telescopic spring is compressed, the high-temperature-resistant sealing ring is tightly connected with the bottom end of the furnace cover through the elastic potential energy of the telescopic spring, the sealing performance of the connecting position of the inner container body and the furnace cover is guaranteed, and heat in the inner container body is prevented from losing.

Description

Technical Field

[0001] The utility model relates to the technical field of heating equipment, in particular to a novel homogeneous heat transfer type well type furnace liner device. Background Art

[0002] Pit-type furnace is one of the main boiler forms in today's mechanical processing production. Pit-type heat treatment furnace is widely used due to its high thermal efficiency, small footprint, and convenient operation. Pit-type furnace is mainly used for heat treatment of rods and long shaft parts.

[0003] Usually, a sealing ring is provided at the connection position of the pit-type furnace inner shell and the furnace cover. However, after the pit-type furnace inner shell and the furnace cover are connected, the furnace cover may not fit tightly with the sealing ring, and there may still be a gap between the sealing ring and the furnace cover, causing the heat inside the pit-type furnace inner shell to dissipate from the gap. Utility Model Content

[0004] One purpose of the present application is to provide a novel homogeneous heat transfer pit-type furnace liner device to solve the problem in the prior art that after the pit-type furnace liner and the furnace cover are connected, the furnace cover may not fit tightly with the sealing ring, and there may still be a gap between the sealing ring and the furnace cover, causing the heat inside the pit-type furnace liner to dissipate from the gap.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel homogeneous heat transfer type pit-type furnace liner device, comprising an liner body, an outer ring is installed on the outer top end of the liner body, an annular groove is provided on the top of the outer ring, and a limiting sliding groove is symmetrically provided on the inner wall of one side of the annular groove, and a sealing component is arranged inside the annular groove, and the sealing component is used to ensure the sealing of the connection between the liner body and the furnace cover.

[0006] Preferably, the sealing assembly includes a telescopic spring, a mounting ring, a limit slider and a high-temperature resistant sealing ring. Several telescopic springs are installed on the inner bottom wall of the annular groove. The top of the telescopic spring is connected to the mounting ring. The outer side of the mounting ring is symmetrically installed with a limit slider, and the limit slider is slidably connected to the limit slide groove. The top of the mounting ring and the limit slider is connected to a high-temperature resistant sealing ring.

[0007] Preferably, a flange is installed on the outer side of the inner tank body, and the top of the flange is connected to the bottom of the outer ring, and a wound heating wire is embedded and installed on the inner wall of the inner tank body.

[0008] Preferably, the bottom of the inner liner body is connected to a bottom tube, a driving motor is installed at the bottom of the inner liner body, and an output end of the driving motor passes through the bottom inner wall of the inner liner body, and the driving motor is located on the inner side of the bottom tube.

[0009] Preferably, a rotating shaft is installed at the output end of the driving motor, and blades are installed on the outer side of the rotating shaft.

[0010] Preferably, a partition plate is installed on the inner side of the inner tank body, a plurality of air permeable grooves are opened through the top of the partition plate, and a partition net is installed on the inner side of the air permeable groove.

[0011] Preferably, an insulation tube is installed on the outer side of the inner tank body, and the top of the insulation tube is connected to the bottom of the flange, a ceramic fiber board is installed inside the insulation tube, and insulation cotton is filled between the ceramic fiber board and the insulation tube.

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

[0013] 1. When the furnace cover is installed on the top of the inner tank body in the utility model, the bottom end of the furnace cover is located inside the annular groove, and the gravity of the furnace cover itself is applied to the telescopic spring through the mounting ring, so that the telescopic spring is compressed, and the mounting ring slides downward for a distance under the cooperation of the limit slide groove and the limit slide block. After the telescopic spring is compressed, its elastic potential energy is used to tightly connect the high temperature resistant sealing ring and the bottom end of the furnace cover, thereby ensuring the sealing of the connection between the inner tank body and the furnace cover and avoiding the loss of heat in the inner tank body.

[0014] 2. In the utility model, when the workpiece is processed inside the inner tank of the pit-type furnace, the insulation tube on the outside of the inner tank body provides insulation for the inner tank body. The ceramic fiberboard has excellent high temperature resistance and poor heat transfer performance. There are many fibers inside the insulation cotton. There is a large amount of air between these fibers, and air is a poor heat conductor, which can effectively prevent the transfer of heat. Through the setting of the insulation tube, the heat loss of the pit-type furnace when processing the workpiece can be effectively reduced, and the efficiency of processing the workpiece can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 It is a cross-sectional view of the utility model;

[0017] Figure 3 For the utility model Figure 2 A schematic diagram of the structure at A;

[0018] Figure 4 It is a top sectional view of the heat preservation tube of the present utility model.

[0019] In the figure: 1. Inner tank body; 2. Outer ring; 3. Annular groove; 4. Limit slide groove; 5. Telescopic spring; 6. Mounting ring; 7. Limit slide block; 8. High temperature resistant sealing ring; 9. Flange; 10. Heating wire; 11. Bottom tube; 12. Driving motor; 13. Rotating shaft; 14. Blade; 15. Partition plate; 16. Breathable groove; 17. Partition net; 18. Insulation tube; 19. Ceramic fiberboard; 20. Insulation cotton. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions 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.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" 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 orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on 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.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "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 an indirect connection 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 invention can be understood according to specific circumstances.

[0023] The following is combined with Figure 1-4 , the technical solution of the utility model is further explained:

[0024] Embodiment 1: Figure 1-Figure 3As shown, a novel homogeneous heat transfer type pit-type furnace liner device comprises an liner body 1, an outer ring 2 is installed on the outer top end of the liner body 1, an annular groove 3 is opened on the top of the outer ring 2, and a limiting slide groove 4 is symmetrically opened on the inner wall of one side of the annular groove 3. A sealing component is arranged inside the annular groove 3, and the sealing component is used to ensure the sealing of the connection between the liner body 1 and the furnace cover. The sealing component comprises a telescopic spring 5, a mounting ring 6, a limiting slider 7 and a high-temperature resistant sealing ring 8. Several telescopic springs 5 ​​are installed on the inner bottom wall of the annular groove 3, and the top of the telescopic spring 5 is connected to the mounting ring 6. The outer side of the mounting ring 6 is symmetrically installed with a limiting slider 7, and the limiting slider 7 is slidably connected to the limiting slide groove 4, and the top of the mounting ring 6 and the limiting slider 7 are connected with a high-temperature resistant sealing ring 8. The inner liner body 1 provides an installation position for the outer ring 2, the outer ring 2 provides an opening space and an opening position for the annular groove 3, the annular groove 3 provides an opening position for the limiting slide groove 4, the annular groove 3 provides an installation position for the sealing assembly, the annular groove 3 provides an installation position for the telescopic spring 5, the telescopic spring 5 provides an installation connection position for the mounting ring 6, and connects the mounting ring 6 to the inner bottom wall of the annular groove 3, the mounting ring 6 provides an installation position for the limiting slider 7, the limiting slider 7 and the limiting slide groove 4 cooperate with each other to prevent the mounting ring 6 from deflecting, the mounting ring 6 and the limiting slider 7 provide an installation position for the high temperature resistant sealing ring 8, and the high temperature resistant sealing ring 8 uses its elastic deformation and extrusion deformation to fill the gap at the connection. When the furnace cover is installed on the top of the inner tank body 1, the bottom end of the furnace cover is located inside the annular groove 3, and the gravity of the furnace cover itself is applied to the telescopic spring 5 through the mounting ring 6, so that the telescopic spring 5 is compressed. The mounting ring 6 slides downward for a distance with the cooperation of the limiting slide groove 4 and the limiting slider 7. After the telescopic spring 5 is compressed, its elastic potential energy is used to tightly connect the high-temperature resistant sealing ring 8 and the bottom end of the furnace cover, thereby ensuring the sealing of the connection between the inner tank body 1 and the furnace cover and avoiding the loss of heat in the inner tank body 1.

[0025] Embodiment 2: Figure 1-Figure 4As shown, a flange 9 is installed on the outer side of the inner tank body 1, and the top of the flange 9 is connected to the bottom of the outer ring 2, a winding electric heating wire 10 is inlaid on the inner wall of the inner tank body 1, a bottom tube 11 is connected to the bottom of the inner tank body 1, a driving motor 12 is installed on the bottom of the inner tank body 1, and the output end of the driving motor 12 passes through the bottom inner wall of the inner tank body 1, the driving motor 12 is located on the inner side of the bottom tube 11, a rotating shaft 13 is installed on the output end of the driving motor 12, a blade 14 is installed on the outer side of the rotating shaft 13, a partition plate 15 is installed on the inner side of the inner tank body 1, a plurality of air permeable grooves 16 are opened on the top of the partition plate 15, and a partition net 17 is installed on the inner side of the air permeable groove 16. The inner tank body 1 provides an installation position for the flange 9, and the flange 9 is used to install the pit-type furnace inner tank on the furnace body shell. The inner tank body 1 provides an installation position for the electric heating wire 10, and the electric heating wire 10 converts electrical energy into thermal energy to provide heat. The inner tank body 1 provides an installation position for the bottom cylinder 11, and the bottom cylinder 11 is used to protect the drive motor 12 to avoid collision between the furnace body shell and the drive motor 12 when the pit-type furnace inner tank is installed to the furnace body shell. The inner tank body 1 provides an installation position for the drive motor 12, and the drive motor 12 provides an installation position for the rotating shaft 13, and the rotating shaft 13 provides an installation position for the blade 14, and the blade 14 is used to fan the hot air inside the inner tank body 1. The inner tank body 1 provides an installation position for the partition plate 15, and the partition plate 15 provides an installation position for the air permeable groove 16, and avoids contact between the workpiece and the rotating blade 14. The air permeable groove 16 provides an installation position for the partition net 17, and the partition net 17 allows the airflow brought by the fanning of the blade 14 to pass through, and the airflow brought by the fanning affects the flow of hot air inside the inner tank body 1. After placing the workpiece inside the inner tank body 1, the heating wire 10 generates heat, the driving motor 12 drives the shaft 13 to rotate, and the shaft 13 drives the blades 14 to rotate, so that the blades 14 fan to generate airflow, and the airflow causes the heat inside the inner tank body 1 to circulate, so that the workpiece inside the inner tank body 1 is heated evenly.

[0026] Embodiment 3: A heat preservation tube 18 is installed on the outer side of the inner tank body 1, and the top of the heat preservation tube 18 is connected to the bottom of the flange 9, a ceramic fiber board 19 is installed inside the heat preservation tube 18, and the interlayer between the ceramic fiber board 19 and the heat preservation tube 18 is filled with heat preservation cotton 20. The inner tank body 1 provides an installation position for the heat preservation tube 18, and the heat preservation tube 18 provides an installation position for the ceramic fiber board 19. The interlayer formed between the heat preservation tube 18 and the ceramic fiber board 19 provides an installation space for the heat preservation cotton 20. When the workpiece is processed inside the inner tank of the pit furnace, the heat preservation tube 18 outside the inner tank body 1 provides heat preservation for the inner tank body 1, the ceramic fiber board 19 has excellent high temperature resistance and poor heat transfer performance, and there are many fibers inside the heat preservation cotton 20, and there is a lot of air between these fibers, and air is a poor heat conductor, which can effectively prevent the transfer of heat; by setting the heat preservation tube 18, the heat loss of the pit furnace when processing the workpiece can be effectively reduced, and the efficiency of its processing workpiece can be improved.

[0027] Working principle: Before using the new homogeneous heat transfer type pit type furnace liner device, you should first check whether the new homogeneous heat transfer type pit type furnace liner device has any problems that affect its use. First, place the new homogeneous heat transfer type pit type furnace liner device at the location where it needs to be used. When the furnace cover is installed on the top of the inner tank body 1, the bottom end of the furnace cover is located inside the annular groove 3. The gravity of the furnace cover itself is applied to the telescopic spring 5 through the mounting ring 6, so that the telescopic spring 5 is compressed. The mounting ring 6 slides downward for a distance under the cooperation of the limit slide groove 4 and the limit slider 7. After the telescopic spring 5 is compressed, its elastic potential energy is used to tightly connect the high temperature resistant sealing ring 8 and the bottom end of the furnace cover, ensuring the sealing of the connection between the inner tank body 1 and the furnace cover, and avoiding the loss of heat in the inner tank body 1. After placing the workpiece inside the inner tank body 1, the electric heating wire 10 generates heat, the driving motor 12 drives the rotating shaft 13 to rotate, and the rotating shaft 13 drives the blades 14 to rotate, so that the blades 14 fan to generate airflow, and the airflow causes the heat inside the inner tank body 1 to circulate, so that the workpiece inside the inner tank body 1 is heated evenly. When the workpiece is processed inside the inner tank of the pit-type furnace, the insulation tube 18 on the outside of the inner tank body 1 provides insulation for the inner tank body 1. The ceramic fiberboard 19 has excellent high temperature resistance and poor heat transfer performance. There are many fibers inside the insulation cotton 20. There is a large amount of air between these fibers, and air is a poor heat conductor, which can effectively prevent the transfer of heat. By setting the insulation tube 18, the heat loss of the pit-type furnace when processing the workpiece can be effectively reduced, thereby improving its efficiency in processing the workpiece.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

Claims

1. A novel homogeneous heat transfer type pit furnace liner device, comprising an liner body (1), characterized in that: An outer ring (2) is installed at the top of the outer side of the inner liner body (1), an annular groove (3) is provided at the top of the outer ring (2), a limiting sliding groove (4) is symmetrically provided on the inner wall of one side of the annular groove (3), and a sealing component is provided inside the annular groove (3), and the sealing component is used to ensure the sealing of the connection between the inner liner body (1) and the furnace cover.

2. A novel homogeneous heat transfer pit furnace liner device according to claim 1, characterized in that: The sealing assembly comprises a telescopic spring (5), a mounting ring (6), a limit slider (7) and a high temperature resistant sealing ring (8); a plurality of telescopic springs (5) are mounted on the inner bottom wall of the annular groove (3); the top of the telescopic spring (5) is connected to the mounting ring (6); the outer side of the mounting ring (6) is symmetrically mounted with a limit slider (7); the limit slider (7) is slidably connected to the limit slide groove (4); the top of the mounting ring (6) and the limit slider (7) are connected to the high temperature resistant sealing ring (8).

3. The novel homogeneous heat transfer pit furnace liner device according to claim 1 is characterized in that: A flange (9) is installed on the outer side of the inner tank body (1), and the top of the flange (9) is connected to the bottom of the outer ring (2). A wound electric heating wire (10) is embedded and installed on the inner wall of the inner tank body (1).

4. The novel homogeneous heat transfer pit furnace liner device according to claim 1 is characterized in that: The bottom of the inner container body (1) is connected to a bottom tube (11), a driving motor (12) is installed at the bottom of the inner container body (1), and an output end of the driving motor (12) passes through the bottom inner wall of the inner container body (1), and the driving motor (12) is located on the inner side of the bottom tube (11).

5. A novel homogeneous heat transfer pit furnace liner device according to claim 4, characterized in that: A rotating shaft (13) is installed at the output end of the driving motor (12), and blades (14) are installed on the outer side of the rotating shaft (13).

6. The novel homogeneous heat transfer pit furnace liner device according to claim 1 is characterized in that: A partition plate (15) is installed on the inner side of the inner container body (1), a plurality of ventilation grooves (16) are provided through the top of the partition plate (15), and a partition net (17) is installed on the inner side of the ventilation groove (16).

7. The novel homogeneous heat transfer pit furnace liner device according to claim 1 is characterized in that: A heat-insulating tube (18) is installed on the outer side of the inner tank body (1), and the top of the heat-insulating tube (18) is connected to the bottom of the flange (9). A ceramic fiber board (19) is installed inside the heat-insulating tube (18), and heat-insulating cotton (20) is filled between the ceramic fiber board (19) and the heat-insulating tube (18).

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