Atmosphere diversion structure in nitriding furnace

Abstract

The atmosphere diversion structure in the nitriding furnace comprises a heat preservation layer and a furnace body fixedly installed in the heat preservation layer, a furnace cover is fixedly installed at the upper end of the furnace body, an air outlet pipe is fixedly installed in the furnace cover, and an air inlet pipe is fixedly installed in the lower end of the furnace body. An isolation frame is fixedly installed at the end, away from the furnace body, of the air inlet pipe, an air conveying pipe is fixedly installed at the end, away from the air inlet pipe, of the isolation frame, an air blower is fixedly installed at the end, away from the isolation frame, of the air conveying pipe, and a heating element is fixedly installed at the lower end of the furnace body. Through rotation of the guide vanes, gas in the furnace body can flow and circulate up and down, so that the temperature in the furnace body can be adjusted conveniently, balance of the temperature in the furnace body up and down is guaranteed, and the heating effect in the furnace body is improved conveniently; the purity of gas entering the furnace body can be guaranteed, and the influence of dust in the furnace body is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to nitrogenization furnace technical field, concretely is a nitrogenization furnace inner atmosphere flow guide structure. BACKGROUND

[0002] Nitrogenization furnace is one kind of industrial processing furnace, can carry out heat treatment, and nitrogenization furnace will cooperate with heat preservation equipment and be used together in the process of use, reduce the elapse of the heat inside the furnace body,

[0003] But the nitrogenization furnace still has certain use defect in the process of use, the existing furnace body structure, heating mode, furnace obstacle and workpiece and fan circulation air guide system etc., wherein the optimization flow guide structure is the most direct and effective means, causes the uneven distribution of heat and gas in the furnace, causes the problem of poor workpiece quality,

[0004] The patent application announcement no. CN118310322A discloses a kind of atmosphere furnace gas flow guide device, by being arranged in the gas inlet side of furnace first air inlet hole plate of outside, to the gas that the furnace outside flows to the direction of air inlet hole plate direction is reduced, make gas pass through the first air inlet hole plate before passing through the air inlet hole of air inlet hole plate, to eliminate the circumferential rotation component of driven fan blade, reduce the direct impact of rotating air flow to air inlet hole plate.And install several second air inlet hole plates on air inlet hole plate along the axial direction, to the gas along the axial direction to the center of air inlet hole plate flow is oriented, so that gas can be evenly entered into furnace along air inlet hole plate, and when flowing in furnace towards gas exhaust, reach the purpose of uniform flow field speed, realize that heating heat and gas can be evenly distributed in furnace, beneficial to improve the quality and efficiency of industrial furnace processing workpiece;

[0005] In the above-mentioned published patent, the device in the patent solves the problems raised above, but the device still has the following problems: in the process of using the device, the gas is divided by the plurality of air inlet hole plates to ensure that the gas in the furnace body is evenly distributed, but the position of the air inlet hole plate in the furnace body is fixed, and the air holes of the air inlet hole are also fixed, after the gas enters the interior of the furnace body, it is easy to be affected by the temperature and distributed, and the internal structure of the furnace body cannot affect the distribution of the gas, which is easy to cause the heating in the interior of the furnace body to be affected.

[0006] In view of the above problems, it is urgent to make innovative design on the basis of the original nitrogenization furnace structure. UTILITY MODEL CONTENTS

[0007] The utility model discloses a nitrogen furnace inner atmosphere flow guide structure to solve the fixed position of the air inlet hole plate in the furnace body in the background art, and the air hole of the air inlet hole is also fixed, and the distribution of the gas is easy to be affected by the temperature after the gas goes to the inside of the furnace body, and the internal structure of the furnace body cannot affect the distribution of the gas, which can easily cause the heating in the inside of the furnace body to be affected.

[0008] In order to achieve the above object, the utility model provides the following technical scheme: a nitrogen furnace inner atmosphere flow guide structure, including the heat preservation layer and the furnace body fixedly installed in the heat preservation layer,

[0009] The upper end of the furnace body is fixedly installed with a furnace cover, and the inside of the furnace cover is fixedly installed with an air outlet pipe; the lower end inside of the furnace body is fixedly installed with an air inlet pipe, and the end of the air inlet pipe away from the furnace body is fixedly installed with an isolation frame; the end of the isolation frame away from the air inlet pipe is fixedly installed with a gas conveying pipe, and the end of the gas conveying pipe away from the isolation frame is fixedly installed with a blower; and the lower end of the furnace body is fixedly installed with a heating element.

[0010] The inside of the furnace body is provided with a gas guide structure for controlling the circulation of the gas, and the inside of the isolation frame is provided with a dustproof separation structure.

[0011] Preferably, the gas guide structure comprises a flow guide cylinder, which is fixedly installed in the inside of the furnace body, and the inside of the flow guide cylinder is provided with heating holes at equal angles; the upper end of the flow guide cylinder is clampedly installed with a flow guide cover, the inside of the flow guide cover is provided with flow guide holes, and the radius size of the flow guide holes is greater than that of the heating holes.

[0012] Preferably, the upper end of the furnace cover is fixedly installed with a driving motor, the output end of the driving motor is fixedly installed with an output shaft, and the driving motor is rotationally connected with the furnace cover.

[0013] Preferably, the lower end inside of the furnace body is fixedly installed with a fixing rod, the upper end of the fixing rod is rotationally installed with a driving rod, the outer side of the driving rod is fixedly installed with flow guide vanes, and the upper end of the driving rod is clampedly connected with the output shaft.

[0014] Preferably, the separation structure comprises a first dustproof plate and a second dustproof plate, the first dustproof plate and the second dustproof plate are clampedly installed in the inside of the isolation frame, and the first dustproof plate is located on the side of the second dustproof plate close to the furnace body.

[0015] Preferably, a cleaning brush is slidingly installed in the inside of the isolation frame, the lower end of the cleaning brush is fixedly installed with a connecting rod, the lower end of the connecting rod is fixedly installed with a weight block, and the cleaning brush is located on the side of the second dustproof plate close to the blower.

[0016] Preferably, the lower end of the isolation frame is fixedly provided with a butt joint block, the inside of the butt joint block is provided with a dismounting frame, and the inside of the butt joint block is slidably provided with a clamping plate.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] 1. Through the rotation of the guide vane, the gas in the furnace body can flow and circulate up and down, so that the temperature inside the furnace body can be adjusted, the up and down temperature balance inside the furnace body is ensured, and the heating effect inside the furnace body is improved.

[0019] 2. The dust in the gas is isolated by the isolation frame, the purity of the gas entering the furnace body is ensured, and the influence of the dust inside the furnace body is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0021] Figure 2 It is a three-dimensional structure schematic diagram of the utility model;

[0022] Figure 3 It is a three-dimensional structure schematic diagram of the utility model;

[0023] Figure 4 It is a three-dimensional structure schematic diagram of the utility model;

[0024] Figure 5 It is a three-dimensional structure schematic diagram of the utility model;

[0025] Figure 6 It is a three-dimensional structure schematic diagram of the utility model;

[0026] Figure 7 It is a three-dimensional structure schematic diagram of the utility model.

[0027] In the drawing: 1, heat preservation layer; 2, furnace body; 3, furnace cover; 4, gas outlet pipe; 5, gas inlet pipe; 6, isolation frame; 7, gas conveying pipe; 8, air blower; 9, heating element; 10, guide cylinder; 11, heating hole; 12, driving motor; 13, output shaft; 14, guide cover; 15, guide hole; 16, driving rod; 17, guide vane; 18, fixed rod; 19, first dustproof plate; 20, second dustproof plate; 21, cleaning brush; 22, connecting rod; 23, weight block; 24, dismounting frame; 25, butt joint block; 26, clamping plate; 27, return spring. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0029] In specific embodiments, as shown in Figures 1-3 The basic working process of the nitriding furnace is disclosed.

[0030] The heat preservation layer 1 and the furnace body 2 fixedly installed inside the heat preservation layer 1;

[0031] The upper end of the furnace body 2 is fixedly installed with a furnace cover 3, and the inside of the furnace cover 3 is fixedly installed with an air outlet pipe 4; the lower end of the furnace body 2 is fixedly installed with an air inlet pipe 5, and the end of the air inlet pipe 5 away from the furnace body 2 is fixedly installed with an isolation frame 6; the end of the isolation frame 6 away from the air inlet pipe 5 is fixedly installed with a gas conveying pipe 7, and the end of the gas conveying pipe 7 away from the isolation frame 6 is fixedly installed with a blower 8; and the lower end of the furnace body 2 is fixedly installed with a heating element 9.

[0032] When the air atmosphere guiding structure in the nitriding furnace is used, the blower 8 and the heating element 9 need to work; the blower 8 will draw the air outside into the inside of the furnace body 2 through the air inlet pipe 5 and the gas conveying pipe 7, the heating element 9 will heat the inside of the furnace body 2, and the heat preservation layer 1 will wrap the outside of the furnace body 2, so as to reduce the heat loss in the inside of the furnace body 2.

[0033] The gas in the furnace can be driven by the gas guiding structure in the inside of the furnace body 2, so that the gas flows in the inside of the furnace body 2, the temperature in the inside of the furnace body 2 is balanced, the heating effect in the inside of the furnace body 2 is ensured, the isolation frame 6 can remove dust from the air entering the inside of the furnace body 2, so as to complete the basic use process of the nitriding furnace.

[0034] In one of the specific embodiments, as shown in Figures 1-5 The process of guiding the nitriding furnace is disclosed.

[0035] The inside of the furnace body 2 is provided with a gas guiding structure for controlling gas circulation.

[0036] The gas guiding structure comprises a guiding cylinder 10, and the guiding cylinder 10 is fixedly installed in the inside of the furnace body 2; the inside of the guiding cylinder 10 is provided with heating holes 11 at equal angles; the upper end of the guiding cylinder 10 is clampedly installed with a guiding cover 14, the inside of the guiding cover 14 is provided with a guiding hole 15, and the radius size of the guiding hole 15 is greater than the radius size of the heating hole 11.

[0037] The upper end of the furnace cover 3 is fixedly provided with a driving motor 12, the output end of the driving motor 12 is fixedly provided with an output shaft 13, and the driving motor 12 is rotationally connected with the furnace cover 3;

[0038] The lower end of the furnace body 2 is fixedly provided with a fixed rod 18, the upper end of the fixed rod 18 is rotationally provided with a driving rod 16, the outer side of the driving rod 16 is fixedly provided with a guide vane 17, and the upper end of the driving rod 16 is clampedly connected with the output shaft 13;

[0039] The separation structure comprises a first dustproof plate 19 and a second dustproof plate 20, the first dustproof plate 19 and the second dustproof plate 20 are clampedly arranged in the inside of the isolation frame 6, and the first dustproof plate 19 is located on the side of the second dustproof plate 20 close to the furnace body 2.

[0040] In use, the driving motor 12 works to drive the output shaft 13 to rotate, the output shaft 13 drives the guide vane 17 to rotate through the driving rod 16, and the guide vane 17 blows the gas in the inside of the guide cylinder 10 out from the lower end of the guide cylinder 10, at this time, the air pressure in the inside of the guide cylinder 10 is less than the air pressure between the furnace body 2 and the guide cylinder 10, the air flow between the furnace body 2 and the guide cylinder 10 enters the inside of the guide cylinder 10 through the guide hole 15 and the heating hole 11, and the air flow in and out of the guide cylinder 10 is circulated, so that the air flow in the inside of the furnace body 2 is uniformly heated, the temperature in the inside of the furnace body 2 is the same, and the heating effect of the nitriding furnace is improved.

[0041] Based on the above embodiment, as shown in Figures 1-7 , the dust collection process of the nitriding furnace is disclosed;

[0042] The inside of the isolation frame 6 is provided with a dustproof separation structure;

[0043] The inside of the isolation frame 6 is slidably provided with a cleaning brush 21, the lower end of the cleaning brush 21 is fixedly provided with a connecting rod 22, the lower end of the connecting rod 22 is fixedly provided with a weight block 23, and the cleaning brush 21 is located on the side of the second dustproof plate 20 close to the air blower 8;

[0044] The lower end of the isolation frame 6 is fixedly provided with a butt joint block 25, the inside of the butt joint block 25 is provided with a dismounting frame 24, the inside of the butt joint block 25 is slidably provided with a clamping plate 26, the clamping plate 26 is clampedly connected with the dismounting frame 24, and the end of the clamping plate 26 close to the butt joint block 25 is fixedly provided with a return spring 27.

[0045] In use, the air blower 8 blows the gas into the inside of the isolation frame 6 through the gas conveying pipe 7, and the two groups of dustproof plates in the inside of the isolation frame 6 isolate the dust in the air;

[0046] And dust isolation in the outer side of the dustproof plate will be scattered in the inside of the dismounting frame 24, and the dismounting frame 24 is arranged to be transparent material, so that the amount of dust in the inside of the dismounting frame 24 can be directly observed, thereby facilitating the cleaning of the dismounting frame 24 in time;

[0047] In the process of cleaning the dismounting frame 24, the dismounting frame 24 needs to be moved downward, at this time the dismounting frame 24 will extrude the clamping plate 26, and the clamping plate 26 will move to the inside of the butt block 25 and extrude the return spring 27 after being extruded, at this time the return spring 27 will contract, and after the dismounting frame 24 and the butt block 25 are separated, the dust in the inside of the dismounting frame 24 can be cleaned, and when the dismounting frame 24 and the butt block 25 are separated, the weight block 23 will pull the cleaning brush 21 downward through the connecting rod 22 and clean the dust adhered to the outside of the second dustproof plate 20, thereby ensuring the ventilation effect of the second dustproof plate 20 and increasing the overall practicability.

[0048] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0049] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An atmosphere guiding structure inside a nitriding furnace, comprising an insulation layer (1) and a furnace body (2) fixedly installed inside the insulation layer (1); Its features are: A furnace cover (3) is fixedly installed at the upper end of the furnace body (2), and an exhaust pipe (4) is fixedly installed inside the furnace cover (3). An intake pipe (5) is fixedly installed inside the lower end of the furnace body (2), and an isolation frame (6) is fixedly installed at the end of the intake pipe (5) away from the furnace body (2). A gas supply pipe (7) is fixedly installed at the end of the isolation frame (6) away from the intake pipe (5), and a blower (8) is fixedly installed at the end of the gas supply pipe (7) away from the isolation frame (6). A heating element (9) is fixedly installed at the lower end of the furnace body (2). The furnace body (2) is equipped with a gas guiding structure for controlling gas circulation, and the isolation frame (6) is equipped with a dustproof separation structure.

2. The atmosphere guiding structure inside a nitriding furnace according to claim 1, characterized in that: The gas guiding structure includes a guide tube (10), which is fixedly installed inside the furnace body (2). Heating holes (11) are opened at equal angles inside the guide tube (10). A guide cover (14) is fitted onto the upper end of the guide tube (10), and a guide hole (15) is opened inside the guide cover (14). The radius of the guide hole (15) is larger than that of the heating hole (11).

3. The atmosphere guiding structure inside a nitriding furnace according to claim 1, characterized in that: The upper end of the furnace cover (3) is fixedly equipped with a drive motor (12), and the output end of the drive motor (12) is fixedly equipped with an output shaft (13), and the drive motor (12) is rotatably connected to the furnace cover (3).

4. The atmosphere guiding structure inside a nitriding furnace according to claim 1, characterized in that: A fixed rod (18) is fixedly installed inside the lower end of the furnace body (2), and a drive rod (16) is rotatably installed on the upper end of the fixed rod (18). A guide vane (17) is fixedly installed on the outer side of the drive rod (16), and the upper end of the drive rod (16) is engaged with the output shaft (13).

5. The atmosphere guiding structure inside a nitriding furnace according to claim 1, characterized in that: The separation structure includes a first dustproof plate (19) and a second dustproof plate (20), and the first dustproof plate (19) and the second dustproof plate (20) are engaged and installed inside the isolation frame (6), and the first dustproof plate (19) is located on the side of the second dustproof plate (20) closer to the furnace body (2).

6. The atmosphere guiding structure inside a nitriding furnace according to claim 1, characterized in that: A cleaning brush (21) is slidably installed inside the isolation frame (6), and a connecting rod (22) is fixedly installed at the lower end of the cleaning brush (21), and a weight block (23) is fixedly installed at the lower end of the connecting rod (22). Meanwhile, the cleaning brush (21) is located on the side of the second dustproof plate (20) close to the blower (8).

7. The atmosphere guiding structure inside a nitriding furnace according to claim 1, characterized in that: The lower end of the isolation frame (6) is fixedly installed with a docking block (25), and a disassembly frame (24) is installed inside the docking block (25). A locking plate (26) is slidably installed inside the docking block (25). The locking plate (26) is engaged with the disassembly frame (24), and a return spring (27) is fixedly installed at one end of the locking plate (26) near the docking block (25).

Images