Waste gas discharging device of nitriding furnace

Abstract

The utility model relates to a waste gas exhausting device of a nitriding furnace, which belongs to the technical field of waste gas exhausting and comprises a waste gas exhausting device body of the nitriding furnace, an air draft pipeline arranged on the waste gas exhausting device body of the nitriding furnace, a mounting pipeline and a lower outer sealing sleeve. A water storage tank is fixedly connected to the top surface of the mounting plate, a plurality of connecting bins are placed in the water storage tank, and two collecting bins are placed in the water storage tank. According to the waste gas discharging device of the nitriding furnace, under the action of a conveying pipe, a supporting pipe and a connecting bin, waste gas is conveyed, liquid in a water storage tank is heated through heat of the waste gas, then the heat of the waste gas is reduced, the filtering effect and the using effect are improved, and meanwhile through attachment between a rubber ring and a sealing groove, the sealing effect is improved. And the joint of the conveying pipe and the supporting pipe is sealed, the sealing performance is improved, and more convenience and practicability are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to exhaust emission technology field, concretely is a kind of nitrogen furnace exhaust device. BACKGROUND

[0002] Nitriding furnace is a kind of heat treatment furnace specially used to promote nitriding process, and the nitriding process is a process of introducing nitrogen into solid iron alloy at a temperature higher than the critical point in the presence of nitrogen-containing materials. This process can improve the hardness and wear resistance of metals without quenching hardening, so that the parts have high fatigue strength and long service life. The exhaust gas of nitriding furnace needs to be treated after being discharged.

[0003] A kind of nitrogen furnace exhaust device is disclosed in Chinese patent CN221244374U. The patent discloses a technical solution for conveniently exhausting different height and size nitriding furnaces. It solves the problem of existing nitriding furnace exhaust devices that are not convenient to install and exhaust different height and size nitriding furnaces, thereby reducing the convenience of nitrogen furnace exhaust.

[0004] When using the device, different height nitriding furnaces can be installed and exhausted through the exhaust hose. However, the exhaust gas is high in temperature, which can easily damage the filter screen and reduce its service life, thereby reducing the filtering effect. Therefore, a kind of nitrogen furnace exhaust device is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] To overcome the shortcomings of the prior art, the utility model provides a kind of nitrogen furnace exhaust device, with the advantage of improving filtering effect, solves the problem that the device can be installed and exhausted by exhaust hose when using different height nitriding furnaces, but the exhaust gas is high in temperature, which can easily damage the filter screen and reduce its service life, thereby reducing the filtering effect.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a kind of nitrogen furnace exhaust device, comprising a nitriding furnace exhaust device body, an exhaust duct arranged on the nitriding furnace exhaust device body, an installation duct and a lower outer sealing sleeve, the left side of the nitriding furnace exhaust device body is fixedly connected with mounting plate.

[0007] The top surface of the mounting plate is fixedly connected with a water storage tank, a plurality of connecting bins are placed in the water storage tank, two collecting bins are placed in the water storage tank, the opposite inner walls of the two collecting bins are fixedly connected with a plurality of mounting pipes which penetrate the collecting bin at one end and extend into the connecting bins respectively, the inner top walls of the two collecting bins are fixedly connected with a support pipe which penetrates the collecting bin at one end and extends to the top of the water storage tank, the opposite sides of the exhaust duct and the mounting duct are fixedly connected with sealing plates, and the top of the two support pipes is placed with a conveying pipe which penetrates the sealing plate at one end and extends into the exhaust duct and the mounting pipe respectively.

[0008] A sealing assembly is arranged between the conveying pipe and the support pipe to seal the connecting part.

[0009] A support assembly is arranged on the water storage tank to support the mounting duct.

[0010] Further, the connecting bin is a U-shaped rod with a hollow interior, the mounting pipe is fixedly connected with the connecting bin, the two conveying pipes are fixedly connected with the two sealing plates respectively, and the collecting bin is a hollow cylinder.

[0011] Further, the sealing assembly includes two clamping plates which are fixedly sleeved on the outer peripheral walls of the conveying pipe and the support pipe respectively, the opposite sides of the two clamping plates are provided with connecting holes, the conveying pipe and the support pipe extend into the two connecting holes respectively, the bottom surface of the clamping plate at the top is provided with a sealing groove, the top surface of the clamping plate at the bottom is fixedly connected with a rubber ring which extends into the sealing groove at one end, the left and right side surfaces of the clamping plate at the bottom are fixedly connected with fixing plates, the bottom surfaces of the two fixing plates are rotatably connected with drive rods through bearings, the bottom surfaces of the two drive rods are movably connected with screws which extend into the drive rods at one end, the bottom surfaces of the two screws are fixedly connected with pressing plates, the opposite sides of the two fixing plates are provided with sliding grooves, and the sides of the two pressing plates away from the conveying pipe are fixedly connected with sliding plates which extend into the sliding grooves at one end.

[0012] Further, the sealing groove is an annular groove, the rubber ring is fitted with the sealing groove, the fixing plate is an L-shaped plate, the sliding plate is slidably connected with the sliding groove, the bottom surface of the drive rod is provided with a threaded hole, and the screw extends into the threaded hole and is threadedly connected therewith.

[0013] Further, the support assembly comprises a support plate fixedly connected to the left side of the water storage tank, a fixed frame is fixedly connected to the top surface of the support plate, the lower outer sealing sleeve extends to the inside of the fixed frame, the left inner wall of the water storage tank is fixedly connected with a drain pipe penetrating through the water storage tank and extending to the left side, and the outer peripheral wall of the drain pipe is fixedly installed with an electromagnetic valve.

[0014] Further, the support plate is inclined, the fixed frame is a U-shaped frame, and the electromagnetic valve is located on the left side of the water storage tank.

[0015] Compared with the prior art, the technical scheme has the following beneficial effects:

[0016] The nitrogenization furnace exhaust device has the advantages that the exhaust gas is conveyed through the conveying pipe, the support pipe and the connecting bin, the heat of the exhaust gas heats the liquid in the water storage tank, thereby reducing the heat of the exhaust gas, improving the filtering effect and use effect, the rubber ring and the sealing groove are matched to seal the connection between the conveying pipe and the support pipe, the sealing property is improved, and the device is more convenient and practical. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a structural schematic view of the utility model;

[0018] Fig. 2 It is an enlarged schematic view of the internal structure of the connecting hole in the structure of the utility model;

[0019] Fig. 3 It is a partial schematic view of the internal structure of the conveying pipe and the sealing plate after being connected in the structure of the utility model;

[0020] Fig. 4 It is a right side schematic view of the internal structure of the collecting bin in the structure of the utility model;

[0021] Fig. 5 It is a right side schematic view of the left side fixed plate in the structure of the utility model.

[0022] In the drawing: 1 nitrogenization furnace exhaust device body, 2 induced draft duct, 3 conveying pipe, 4 installation duct, 5 lower outer sealing sleeve, 6 fixed frame, 7 support plate, 8 drain pipe, 9 electromagnetic valve, 10 installation plate, 11 water storage tank, 12 connecting bin, 13 installation pipe, 14 collecting bin, 15 support pipe, 16 clamping plate, 17 rubber ring, 18 sealing groove, 19 fixed plate, 20 driving rod, 21 screw rod, 22 sliding groove, 23 sliding plate, 24 pressing plate, 25 connecting hole, 26 sealing plate. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0024] Please refer to Figs. 1 to 5 The nitrogenizing furnace exhaust device comprises a nitrogenizing furnace exhaust device body 1, an exhaust duct 2 arranged on the nitrogenizing furnace exhaust device body 1, a mounting duct 4 and a lower outer sealing sleeve 5, and the left side surface of the nitrogenizing furnace exhaust device body 1 is fixedly connected with a mounting plate 10.

[0025] The top surface of the mounting plate 10 is fixedly connected with a water storage tank 11, a plurality of connecting bins 12 are arranged in the water storage tank 11, two collecting bins 14 are arranged in the water storage tank 11, the opposite inner walls of the two collecting bins 14 are fixedly connected with a plurality of mounting pipes 13 which are arranged in the connecting bins 12 and extend into the connecting bins 12, the inner top walls of the two collecting bins 14 are fixedly connected with a support pipe 15 which extends into the water storage tank 11, the opposite side surfaces of the exhaust duct 2 and the mounting duct 4 are fixedly connected with sealing plates 26, and the top surfaces of the two support pipes 15 are arranged with a conveying pipe 3 which extends into the exhaust duct 2 and the mounting duct 4.

[0026] The connecting bin 12 is in the shape of a U-shaped rod with a hollow interior, the mounting pipe 13 is fixedly connected with the connecting bin 12, the two conveying pipes 3 are fixedly connected with the two sealing plates 26, and the collecting bin 14 is in the shape of a hollow cylinder.

[0027] It should be noted that the nitrogenizing furnace exhaust device body 1 is a conventional device known to the public in the prior art, and the specific structure and working principle thereof will not be described herein.

[0028] Specifically, water is poured into the water storage tank 11, the exhaust gas enters the mounting duct 4, is conveyed into the connecting bin 12 through the left conveying pipe 3 and the support pipe 15, is cooled by the liquid in the water storage tank 11, is conveyed into the exhaust duct 2 through the right conveying pipe 3 and the support pipe 15, and is treated by the nitrogenizing furnace exhaust device body 1.

[0029] In the embodiment, the sealing assembly comprises two clamping plates 16, the two clamping plates 16 are fixedly sleeved on the outer peripheral walls of the conveying pipe 3 and the supporting pipe 15 respectively, opposite side surfaces of the two clamping plates 16 are provided with connecting holes 25 respectively, the conveying pipe 3 and the supporting pipe 15 extend into the two connecting holes 25 respectively, a bottom surface of the clamping plate 16 located at the top is provided with a sealing groove 18, a top surface of the clamping plate 16 located at the bottom is fixedly connected with a rubber ring 17 extending into the sealing groove 18, left and right side surfaces of the clamping plate 16 located at the bottom are fixedly connected with fixed plates 19 respectively, bottom surfaces of the two fixed plates 19 are rotatably connected with driving rods 20 through bearings, bottom surfaces of the two driving rods 20 are movably connected with screw rods 21 extending into the driving rods 20 respectively, bottom surfaces of the two screw rods 21 are fixedly connected with pressing plates 24 respectively, opposite side surfaces of the two fixed plates 19 are provided with sliding grooves 22 respectively, one side of the two pressing plates 24 away from the conveying pipe 3 is fixedly connected with sliding plates 23 extending into the sliding grooves 22 respectively.

[0030] In the embodiment, the sealing groove 18 is an annular groove, the rubber ring 17 is attached to the sealing groove 18, the fixed plate 19 is an L-shaped plate, the sliding plate 23 is slidably connected to the sliding groove 22, the bottom surface of the driving rod 20 is provided with a threaded hole, and the screw rod 21 extends into the threaded hole and is threadedly connected with the threaded hole.

[0031] Specifically, the plurality of connecting bins 12 are placed in the water storage tank 11, and then the connecting bins 12 are rotated, the two clamping plates 16 are attached, the conveying pipe 3 and the supporting pipe 15 are connected, the rubber ring 17 is inserted into the sealing groove 18, the connection between the two clamping plates 16 is sealed through the attachment between the rubber ring 17 and the sealing groove 18, the driving rod 20 is rotated, the screw rod 21 drives the pressing plate 24 to move downward through the threaded connection between the driving rod 20 and the screw rod 21 and the sliding connection between the sliding plate 23 and the sliding groove 22, and the pressing plate 24 is attached to the top clamping plate 16 to fix the connection.

[0032] In the embodiment, the supporting assembly comprises a supporting plate 7, the supporting plate 7 is fixedly connected to the left side surface of the water storage tank 11, a fixed frame 6 is fixedly connected to the top surface of the supporting plate 7, the lower outer sealing sleeve 5 extends into the fixed frame 6, a drain pipe 8 extending to the left side of the water storage tank 11 is fixedly connected to the left inner wall of the water storage tank 11, and an electromagnetic valve 9 is fixedly installed on the outer peripheral wall of the drain pipe 8.

[0033] In the embodiment, the supporting plate 7 is inclined, the fixed frame 6 is a U-shaped frame, and the electromagnetic valve 9 is located on the left side of the water storage tank 11.

[0034] It should be noted that the electromagnetic valve 9 is a conventional device known to the public in the prior art, and the specific structure and working principle thereof will not be described herein.

[0035] Specific, by the effect of fixed frame 6, support the installation pipeline 4, improve the stability of the installation pipeline 4, need to discharge the liquid inside the water storage tank 11, start electromagnetic valve 9, through the delivery of drain pipe 8, liquid discharge water storage tank 11.

[0036] The working principle of the above embodiment is:

[0037] A plurality of connection warehouse 12 is placed in the inside of water storage tank 11, and then rotates the connection warehouse 12, so that the connection warehouse 12 and the drain pipe 8 are in a horizontal state, two clamping plate 16 is attached, the connecting between the conveying pipe 3 and the support pipe 15, rubber ring 17 is inserted into the inside of sealing groove 18, through the fit between rubber ring 17 and sealing groove 18, the sealing of two clamping plate 16 connection, rotating the drive rod 20, the drive rod 20 is rotated, through the thread connection between the drive rod 20 and the screw rod 21 and the sliding connection between the sliding plate 23 and the sliding groove 22, the screw rod 21 drives the pressing plate 24 to move downward, the pressing plate 24 and the top clamping plate 16 are attached, the connecting part is fixed, the water is poured into the inside of the water storage tank 11, through the effect of fixed frame 6, support the installation pipeline 4, improve the stability of the installation pipeline 4, the exhaust gas enters the inside of the installation pipeline 4, through the conveying of the left conveying pipe 3 and the support pipe 15, enters the inside of the connection warehouse 12, through the effect of the liquid inside the water storage tank 11, the exhaust gas is cooled and treated, and then through the effect of the right conveying pipe 3 and the support pipe 15, the exhaust gas is conveyed into the inside of the exhaust duct 2, and then through the effect of the nitrogen furnace exhaust gas device body 1, the exhaust gas is treated, the liquid inside the water storage tank 11 is discharged, the electromagnetic valve 9 is started, and the liquid is discharged from the water storage tank 11 through the delivery of the drain pipe 8.

[0038] The control mode of the utility model is controlled through the controller, the control circuit of the controller can be realized through simple programming of the person skilled in the art, the power supply also belongs to the public knowledge in the field, and the utility model is mainly used for protecting mechanical devices, so the control mode and circuit connection of the utility model are not explained in detail.

[0039] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and implementations, it is to be understood that the terminology used is for the purpose of descriptive clarity and that it is intended to be limited only by the words recited in the appended claims. The scope of the present application shall be limited only by the claims.

[0040] While the embodiments of the present application have been shown and described with respect to particular embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the application. Therefore, the scope of the application should not be limited by the embodiments, but should be defined only in accordance with the following claims and their equivalents.

Claims

1. A nitriding grate exhaust device, comprising a nitriding grate exhaust device body (1), an exhaust duct (2) arranged on the nitriding grate exhaust device body (1), a mounting duct (4), and a lower outer sealing sleeve (5), characterized in that: The left side of the nitrogenation grate exhaust device body (1) is fixedly connected with a mounting plate (10); The top surface of the mounting plate (10) is fixedly connected with a water storage tank (11), a plurality of connecting bins (12) are placed in the water storage tank (11), two collecting bins (14) are placed in the water storage tank (11), the opposite inner walls of the two collecting bins (14) are fixedly connected with a plurality of mounting pipes (13) which penetrate the collecting bins (14) at one end and extend into the connecting bins (12), respectively, the inner top walls of the two collecting bins (14) are fixedly connected with a support pipe (15) which penetrates the collecting bin (14) at one end and extends to the top of the water storage tank (11), the opposite sides of the exhaust duct (2) and the mounting duct (4) are fixedly connected with sealing plates (26), and the top of each of the two support pipes (15) is placed with a conveying pipe (3) which penetrates the sealing plate (26) at one end and extends into the exhaust duct (2) and the mounting duct (4), respectively. Sealing assemblies are arranged between adjacent conveying pipes (3) and support pipes (15), and support assemblies are arranged on the water storage tank (11).

2. A nitrogenation furnace exhaust apparatus according to claim 1, characterized by: The connecting bin (12) is a U-shaped rod with a hollow interior, the mounting pipe (13) is fixedly connected with the connecting bin (12), the two conveying pipes (3) are fixedly connected with the two sealing plates (26), respectively, and the collecting bin (14) is a hollow cylinder.

3. A nitrogenation furnace exhaust apparatus according to claim 1, characterized by: The sealing assembly includes two clamping plates (16) which are fixedly sleeved on the outer peripheral walls of the conveying pipe (3) and the support pipe (15), respectively, the opposite sides of the two clamping plates (16) are provided with connecting holes (25), the conveying pipe (3) and the support pipe (15) extend into the two connecting holes (25), respectively, the bottom surface of the clamping plate (16) at the top is provided with a sealing groove (18), the top surface of the clamping plate (16) at the bottom is fixedly connected with a rubber ring (17) which extends into the sealing groove (18) at one end, the left and right sides of the clamping plate (16) at the bottom are fixedly connected with fixed plates (19), the bottom surfaces of the two fixed plates (19) are rotatably connected with drive rods (20) through bearings, the bottom surfaces of the two drive rods (20) are movably connected with screw rods (21) which extend into the drive rods (20) at one end, the bottom surfaces of the two screw rods (21) are fixedly connected with pressing plates (24), the opposite sides of the two fixed plates (19) are provided with sliding grooves (22), and the sides of the two pressing plates (24) away from the conveying pipe (3) are fixedly connected with sliding plates (23) which extend into the sliding grooves (22) at one end.

4. A nitrogenation furnace exhaust apparatus according to claim 3, characterized by: The sealing groove (18) is an annular groove, the rubber ring (17) is attached to the sealing groove (18), the fixed plate (19) is an L-shaped plate, the sliding plate (23) is slidably connected with the sliding groove (22), the bottom surface of the drive rod (20) is provided with a threaded hole, and the screw rod (21) extends into the threaded hole and is threadedly connected therewith.

5. A nitrogenation furnace exhaust apparatus according to claim 3, wherein: The support assembly comprises a support plate (7) fixedly connected to the left side of the water storage tank (11), the top surface of the support plate (7) is fixedly connected with a fixing frame (6), the lower outer sealing sleeve (5) extends to the inside of the fixing frame (6), the left inner wall of the water storage tank (11) is fixedly connected with a drain pipe (8) with one end penetrating through the water storage tank (11) and extending to the left side, and the outer peripheral wall of the drain pipe (8) is fixedly installed with an electromagnetic valve (9).

6. A nitrogenation furnace exhaust apparatus according to claim 5, wherein: The support plate (7) is inclined, the fixing frame (6) is a U-shaped frame, and the electromagnetic valve (9) is located on the left side of the water storage tank (11).

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