CN217579040U - Gas nitriding furnace airflow diversion circulating device - Google Patents

Abstract

The utility model relates to a gaseous nitriding furnace technical field just discloses a gaseous nitriding furnace air current water conservancy diversion circulating device, which comprises a tank body, the bottom fixedly connected with gas-supply pipe of the jar body, the top inner wall fixedly connected with barrel of the jar body, the top fixedly connected with cylinder of barrel, the piston rod end fixedly connected with of cylinder seals up the sliding plug, the first check valve of bottom fixedly connected with of barrel, the barrel is located the lateral wall fixedly connected with second check valve of the internal portion of jar, the jar body is located the bottom fixedly connected with box of barrel below, the bottom fixedly connected with annular guide plate of box, the top fixedly connected with toper section of thick bamboo of box, the barrel is located the lateral wall fixedly connected with back flow of second check valve. The utility model discloses can improve the gaseous circulation mobility in nitriding furnace inside, improve the nitrogenize quality of part.

Description

Gas nitriding furnace airflow diversion circulating device

Technical Field

The utility model relates to a gaseous nitriding furnace technical field especially relates to a gaseous nitriding furnace air current water conservancy diversion circulating device.

Background

At present, a nitriding furnace is arranged in a furnace in the working process, NH3 gas is directly conveyed into the nitriding furnace, the NH3 gas is decomposed into atomic states for nitriding treatment, a nitrogen-containing strengthening layer can be obtained on the surface of a nitrided workpiece, and high hardness, high wear resistance, high fatigue limit and good wear resistance are obtained.

In the prior art, in the process of nitriding parts, ammonia gas stays in a furnace pot for a short time, the parts are densely placed to interfere the flow of the gas flow, and the ammonia gas cannot be uniformly distributed in the furnace pot in a flowing manner, so that the nitriding condition of the parts is poor, and the quality of the parts is influenced. Therefore, the utility model designs a gaseous nitriding furnace air current water conservancy diversion circulating device.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems that the ammonia gas in the nitriding tank in the using process of the prior art is short in the time of staying in the furnace tank, the air flow is unstable and can not flow circularly, the nitriding quality of parts is influenced, and the air flow diversion circulating device of the gas nitriding furnace is provided.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a gaseous nitriding furnace air current water conservancy diversion circulating device, includes a jar body, the bottom fixedly connected with gas-supply pipe of the jar body, the top inner wall fixedly connected with barrel of the jar body, the top fixedly connected with cylinder of barrel, the tailpiece of the piston rod portion fixedly connected with of cylinder seals the sliding plug, the first check valve of bottom fixedly connected with of barrel, the barrel is located the lateral wall fixedly connected with second check valve of the internal portion of jar, the jar body is located the bottom fixedly connected with box of barrel below, the bottom fixedly connected with annular guide plate of box, the top fixedly connected with toper section of thick bamboo of box, the barrel is located the lateral wall fixedly connected with back flow of second check valve, the bottom of back flow extends to the below of annular guide plate, the inside groove of box is provided with the grid plate, the articulated door plant that is provided with of the inner wall of box, the junction of box and door plant is provided with stop gear.

Preferably, the side wall of the annular guide plate is attached to the inner wall of the tank body, and the top end of the conical cylinder is attached to the bottom end of the cylinder body.

Preferably, the lateral wall fixedly connected with a plurality of support frames of box, the body fixed connection of back flow is at the inner wall of support frame.

Preferably, the inner wall of the box body is provided with a sliding chute, the inner wall of the sliding chute is connected with a sliding block in a sliding manner, and the side wall of the sliding block is fixedly connected with the grid plate.

Preferably, the limiting mechanism comprises a spring and a limiting rod, a groove is formed in the inner wall of the door plate, one end of the spring is fixedly connected to the inner wall of the groove, the other end of the spring is fixedly connected with the limiting rod, a limiting groove is formed in the inner wall of the box body, which is opposite to the end of the groove, and the left end rod wall of the limiting rod extends to the inner wall of the limiting groove.

Preferably, the door panel is located the lateral wall of recess and has seted up the bar mouth, the inner wall sliding connection of bar mouth has the driving lever, the pole wall of driving lever extends to the inside of recess and with the pole wall fixed connection of gag lever post.

Preferably, an opening is formed in the side wall, located on the sealing door, of the tank body, and an observation window is fixedly connected to the inner wall of the opening.

Compared with the prior art, the utility model provides a gaseous nitriding furnace air current water conservancy diversion circulating device possesses following beneficial effect:

1. this gaseous nitriding furnace air current water conservancy diversion circulating device, the inner wall through the piston rod of cylinder along the barrel upwards slides, makes the gaseous inside of jar body flow in to the inside of barrel through first check valve, makes the gaseous bottom that the inside gas of barrel flowed to the jar body through second check valve and backflow pipe when back piston rod descends to reach gaseous circulation flow, improve nitrogenize efficiency.

2. This gaseous nitriding furnace air current water conservancy diversion circulating device drives the spring compression through the pulling driving lever, makes the gag lever post slide to the inner wall of recess, can be convenient for carry out the fixed of opening and shutting to the door plant to the convenience carries out stable access and takes and puts to the net board.

The part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses can improve the gaseous circulation mobility in nitriding furnace inside, improve the nitrogenize quality of part.

Drawings

Fig. 1 is a schematic structural view of an airflow diversion circulation device of a gas nitriding furnace according to the present invention;

FIG. 2 is a sectional view of the gas nitriding furnace airflow guiding and circulating device according to the present invention;

FIG. 3 is a top view of the structure of the grid plate of FIG. 2;

FIG. 4 is an enlarged view of the structure of the portion A in FIG. 2;

fig. 5 is an enlarged view of a portion B of fig. 3.

In the figure: 1 tank body, 2 gas pipes, 3 barrel bodies, 4 cylinders, 5 sealing sliding plugs, 6 first one-way valves, 7 second one-way valves, 8 box bodies, 9 annular guide plates, 10 conical barrels, 11 return pipes, 12 support frames, 13 sliding blocks, 14 grid plates, 15 door plates, 16 springs, 17 limiting rods, 18 deflector rods and 19 observation windows.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example one

Referring to fig. 1-2, a gas nitriding furnace airflow diversion circulating device, which comprises a tank body 1, a gas pipe 2 is fixedly connected to the bottom of the tank body 1, a cylinder 3 is fixedly connected to the inner wall of the top end of the tank body 1, a cylinder 4 is fixedly connected to the top end of the cylinder 3, a sealing sliding plug 5 is fixedly connected to the end portion of a piston rod of the cylinder 4, a first check valve 6 is fixedly connected to the bottom of the cylinder 3, a second check valve 7 is fixedly connected to the side wall of the cylinder 3 located inside the tank body 1, a tank body 8 is fixedly connected to the bottom of the tank body 1 located below the cylinder 3, an annular diversion plate 9 is fixedly connected to the bottom of the tank 8, a conical cylinder 10 is fixedly connected to the top of the tank 8, a backflow pipe 11 is fixedly connected to the side wall of the cylinder 3 located at the second check valve 7, the bottom of the backflow pipe 11 extends to the lower portion of the annular diversion plate 9, a grid plate 14 is arranged in an inner groove of the tank 8, and a door plate 15 is hinged to the inner wall of the tank 8.

The flexible inner wall that drives sealed sliding plug 5 along barrel 3 through the piston rod of cylinder 4 upwards slides, thereby can make the gaseous inside of jar body 1 flow in to the inside of barrel 3 through first check valve 6, then drive sealed sliding plug 5 gliding when the piston rod of cylinder 4 descends, thereby can make the gaseous inside of barrel 3 flow in to the inside of back flow 11 through second check valve 7, flow back to the bottom of jar body 1 again through back flow 11, through the inside of annular guide plate 9 water conservancy diversion to box 8, thereby reach gaseous circulation flow, improve nitrogenize efficiency.

Example two

Referring to fig. 3-4, a gaseous nitriding furnace air current water conservancy diversion circulating device, junction including box 8 and door plant 15 is provided with stop gear, stop gear includes spring 16 and gag lever post 17, the inner wall of door plant 15 is seted up flutedly, the one end fixed connection of spring 16 is at the inner wall of recess, the other end and the gag lever post 17 fixed connection of spring 16, box 8 has seted up the spacing groove for the one end inner wall of recess, the left end pole wall of gag lever post 17 extends to the inner wall of spacing groove, door plant 15 is located the lateral wall of recess and has seted up the bar mouth, the inner wall sliding connection of bar mouth has driving lever 18, the pole wall of driving lever 18 extends to the inside of recess and with gag lever post 17's pole wall fixed connection.

The shifting lever 18 is pulled to drive the spring 16 to compress, so that the limiting rod 17 slides to the inner wall of the groove, the door panel 15 can be conveniently fixed in an opening and closing mode, and the grid plate 14 can be conveniently and stably stored and taken.

EXAMPLE III

Referring to fig. 3-4, the side wall of the annular guide plate 9 is attached to the inner wall of the tank body 1, and the top end of the conical cylinder 10 is attached to the bottom end of the cylinder body 3. The lateral wall of box 8 is fixedly connected with a plurality of support frames 12, and the body fixed connection of back flow pipe 11 is in the inner wall of support frame 12.

The side wall laminating setting of annular guide plate 9 is at the inner wall of jar body 1, and the top laminating of a cone 10 is in the bottom of barrel 3 simultaneously, can make jar internal 1 leakproofness better to the air current can flow better, can carry out stable fixed to back flow 11 through support frame 12.

Example four

Referring to fig. 3-4, the inner wall of the box body 8 is provided with a chute, the inner wall of the chute is connected with a slide block 13 in a sliding manner, and the side wall of the slide block 13 is fixedly connected with a grid plate 14. The side wall of the tank body 1 positioned on the sealing door is provided with an opening, and the inner wall of the opening is fixedly connected with an observation window 19.

The sliding block 13 is arranged on the inner wall of the sliding groove in a sliding manner, so that the grid plate 14 can be more labor-saving when being pulled away to the outer side of the box body 8, and the condition inside the tank body 1 can be observed in real time through the observation window 19.

The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.

Claims (7)

1. The utility model provides a gaseous nitriding furnace air current water conservancy diversion circulating device, includes jar body (1), its characterized in that:

the bottom of the tank body (1) is fixedly connected with a gas pipe (2), the inner wall of the top end of the tank body (1) is fixedly connected with a cylinder body (3), the top end of the cylinder body (3) is fixedly connected with a cylinder (4), the end part of a piston rod of the cylinder (4) is fixedly connected with a sealing sliding plug (5),

the bottom of the cylinder body (3) is fixedly connected with a first one-way valve (6), the side wall of the cylinder body (3) positioned in the tank body (1) is fixedly connected with a second one-way valve (7),

the bottom end of the tank body (1) below the cylinder body (3) is fixedly connected with a tank body (8), the bottom of the tank body (8) is fixedly connected with an annular guide plate (9),

the top end of the box body (8) is fixedly connected with a conical cylinder (10),

the side wall of the cylinder (3) positioned on the second one-way valve (7) is fixedly connected with a return pipe (11), the bottom end of the return pipe (11) extends to the lower part of the annular guide plate (9),

a grid plate (14) is arranged in an inner groove of the box body (8),

the inner wall of the box body (8) is hinged with a door plate (15), and a limiting mechanism is arranged at the joint of the box body (8) and the door plate (15).

2. The gas nitriding furnace gas flow guiding and circulating device of claim 1 is characterized in that: the side wall laminating of annular guide plate (9) sets up the inner wall at jar body (1), the top laminating of a toper section of thick bamboo (10) sets up the bottom at barrel (3).

3. The gas nitriding furnace gas flow guiding and circulating device of claim 1 is characterized in that: the lateral wall fixedly connected with a plurality of support frames (12) of box (8), the body fixed connection of back flow (11) is in the inner wall of support frame (12).

4. The gas nitriding furnace gas flow guiding and circulating device of claim 1 is characterized in that: the inner wall of box (8) has seted up the spout, the inner wall sliding connection of spout has slider (13), the lateral wall and the waffle slab (14) fixed connection of slider (13).

5. The gas nitriding furnace gas flow diversion circulation device according to claim 1, wherein the limiting mechanism comprises a spring (16) and a limiting rod (17), a groove is formed in the inner wall of the door plate (15), one end of the spring (16) is fixedly connected to the inner wall of the groove, the other end of the spring (16) is fixedly connected with the limiting rod (17), a limiting groove is formed in the inner wall of one end, opposite to the groove, of the box body (8), and the rod wall at the left end of the limiting rod (17) extends to the inner wall of the limiting groove.

6. The gas nitriding furnace airflow diversion circulating device of claim 5, wherein: the door plate (15) is located the lateral wall of recess and has seted up the bar mouth, the inner wall sliding connection of bar mouth has driving lever (18), the pole wall of driving lever (18) extends to the inside of recess and with the pole wall fixed connection of gag lever post (17).

7. The gas nitriding furnace airflow diversion circulating device of claim 1, wherein: the side wall of the tank body (1) on the sealing door is provided with an opening, and the inner wall of the opening is fixedly connected with an observation window (19).

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