Multi-gas-source gas supply panel for gas stirring for salt bath nitridation

Abstract

The utility model discloses a multi-gas-source gas supply panel for stirring gas for salt bath nitridation, which comprises a nitrogen supply component, an air supply component and an oxygen supply component, the nitrogen supply component comprises a nitrogen supply pipeline, an air supply pipeline, an oxygen supply pipeline and a gas supply pipeline, and the oxygen supply pipeline is communicated with the nitrogen supply pipeline. The first nitrogen switch valve is arranged on the nitrogen supply pipeline; the nitrogen supply pipeline is sequentially connected with a nitrogen pressure reducing valve and a nitrogen ventilation pressure display meter; the air supply assembly comprises an air supply pipeline and a first air switch valve arranged on the air supply pipeline. The air supply pipeline is sequentially connected with an air pressure reducing valve and an air ventilation pressure display meter; according to the utility model, the gas pressure intensity and the gas flow in the process of conveying a plurality of gases to the salt bath are accurately controlled through the plurality of flow display meters, the pressure display meter, the flow regulating valve, the plurality of switch valves and the pressure reducing valve.

Description

TECHNICAL FIELD

[0001] The utility model relates to salt bath nitriding technical field especially, it is a kind of multi-gas source gas panel for gas stirring for salt bath nitriding. BACKGROUND

[0002] Salt bath nitriding treatment is according to the workpiece material and requirement needing processing, preparation containing specific component salt bath, common salt bath component includes cyanide, carbonate etc., salt bath is heated to the temperature required, usually between 500 DEG C to 600 DEG C, preheated workpiece is immersed into molten salt bath, keeps certain time, to make nitriding effect occur. In salt bath, due to high-temperature effect, nitride in salt bath decomposes active nitrogen atom, these nitrogen atoms diffuse into workpiece surface, form nitride layer, in nitriding process, need to control gas, to perfect nitriding process.

[0003] At present, the existing gas panel for salt bath nitriding processing still has the following problems:

[0004] (1) when the traditional technology continuously passes into air into salt bath, cyanide (CN-) and cyanate (CNO-) ion in salt bath can be oxidized, oxidation makes salt bath present obvious oxidizability, can lead to part surface roughness, even appear skin phenomenon, oxidizing environment can intensify the oxidation of metal surface, destroy the uniformity and integrity of nitride layer.

[0005] (2) if there is no effective stirring, although cyanide can be slowed down in salt bath without passing into air, the concentration distribution of each component in salt bath is extremely uneven, and the temperature is also uneven, the unevenness can lead to uneven infiltration layer, affect the surface quality and performance of part, increase the deformation risk in processing process.

[0006] Therefore, it is necessary to provide a multi-gas source gas panel for gas stirring for salt bath nitriding to solve the above technical problems. SUMMARY

[0007] The utility model overcomes the insufficient prior art, provides a kind of multi-gas source gas panel for gas stirring for salt bath nitriding.

[0008] To achieve the above object, the utility model adopts the technical scheme as follows: a kind of multi-gas source gas panel for gas stirring for salt bath nitriding, comprising: nitrogen gas supply assembly, air supply assembly and oxygen supply assembly;

[0009] The nitrogen gas supply assembly includes: nitrogen gas supply pipeline, first nitrogen gas on valve gate being set on the nitrogen gas supply pipeline;The nitrogen gas supply pipeline is sequentially connected with nitrogen gas pressure-reducing valve and nitrogen gas aeration pressure display table;

[0010] The air supply assembly comprises an air supply pipeline, a first air switch valve arranged on the air supply pipeline, and an air pressure display table connected with the air supply pipeline in sequence.

[0011] The oxygen supply assembly comprises an oxygen supply pipeline, a first oxygen switch valve arranged on the oxygen supply pipeline, and an oxygen pressure display table connected with the oxygen supply pipeline in sequence.

[0012] In a preferred embodiment of the present application, the nitrogen supply pipelines are connected with nitrogen control pipelines in sequence, the air supply pipelines are connected with air control pipelines in sequence, and the oxygen supply pipelines are connected with oxygen control pipelines in sequence.

[0013] In a preferred embodiment of the present application, the nitrogen control pipelines are provided with second nitrogen switch valves and third nitrogen switch valves in sequence.

[0014] In a preferred embodiment of the present application, the air control pipelines are provided with second air switch valves.

[0015] In a preferred embodiment of the present application, the oxygen control pipelines are provided with second oxygen switch valves.

[0016] In a preferred embodiment of the present application, the nitrogen control pipelines, the air control pipelines and the oxygen control pipelines are connected to form general control pipelines.

[0017] In a preferred embodiment of the present application, nitrogen exhaust pipelines are connected to the nitrogen control pipelines between the second nitrogen switch valves and the third nitrogen switch valves, and nitrogen exhaust valves are arranged on the nitrogen exhaust pipelines.

[0018] In a preferred embodiment of the present application, the general control pipelines are provided with ventilation flow regulating valves, ventilation switch valves, ventilation flow display tables and general pressure display tables in sequence.

[0019] In a preferred embodiment of the present application, the ventilation flow display tables have a measurement range of 0-30 L / min, and the general pressure display tables have a measurement range of 0-0.1 MPa.

[0020] In a preferred embodiment of the present application, the nitrogen pressure display table, the air pressure display table and the oxygen pressure display table have a measurement range of 0-0.1 MPa, and the general control pipelines are connected to a salt bath pool.

[0021] The utility model solves the defects in the prior art, and has the following beneficial effects:

[0022] (1) The utility model discloses a gas supply system, which comprises a gas supply panel, a nitrogen gas supply pipeline, an air supply pipeline and an oxygen supply pipeline.

[0023] (2) The utility model discloses a gas supply system, which comprises a gas supply panel, a nitrogen gas supply pipeline, an air supply pipeline and an oxygen supply pipeline.

[0024] (3) The utility model discloses a gas supply system, which comprises a gas supply panel, a nitrogen gas supply pipeline, an air supply pipeline and an oxygen supply pipeline. BRIEF DESCRIPTION OF DRAWINGS

[0025] The utility model will be further described below in combination with the drawings and examples.

[0026] Figure 1 The utility model discloses a gas supply system, which comprises a gas supply panel, a nitrogen gas supply pipeline, an air supply pipeline and an oxygen supply pipeline.

[0027] Figure: 1, nitrogen gas supply pipeline, 2, air supply pipeline, 3, oxygen supply pipeline, 4, first nitrogen gas switch valve, 5, first air switch valve, 6, first oxygen switch valve, 7, nitrogen pressure reducing valve, 8, air pressure reducing valve, 9, pure oxygen pressure reducing valve, 10, nitrogen gas ventilation pressure display table, 11, air ventilation pressure display table, 12, oxygen ventilation pressure display table, 13, nitrogen control pipeline, 14, air control pipeline, 15, oxygen control pipeline, 16, second nitrogen gas switch valve, 17, third nitrogen gas switch valve, 18, second air switch valve, 19, second oxygen switch valve, 20, nitrogen exhaust pipeline, 21, nitrogen exhaust valve, 22, master control pipeline, 23, ventilation flow regulating valve, 24, ventilation switch valve, 25, ventilation flow display table, 26, total pressure display table. DETAILED DESCRIPTION

[0028] The utility model will be further explained in detail in combination with the drawings and embodiments, these drawings are all simplified schematic diagram, only with the schematic way the basic structure of the utility model is shown, therefore it only shows the related structure of the utility model.

[0029] As Figure 1 The utility model discloses a multi -gas source gas panel for gas stirring of salt bath nitriding, include: nitrogen gas supply assembly, air supply assembly and oxygen supply assembly,

[0030] In the utility model, nitrogen gas supply assembly includes: nitrogen gas supply pipeline 1, first nitrogen gas switch valve 4 of setting on nitrogen gas supply pipeline 1, nitrogen gas supply pipeline 1 is connected with nitrogen gas pressure reducing valve 7 and nitrogen gas ventilation pressure display table 10 in proper order, nitrogen gas supply pipeline 1 is responsible for the nitrogen gas from gas source delivery to the place needing to use in salt bath nitriding process, first nitrogen gas switch valve 4 is used to control the on-off of nitrogen gas, and operating personnel opens or closes nitrogen gas supply according to the process requirement, and nitrogen gas pressure reducing valve 7 is added in nitrogen gas supply pipeline 1 to reduce high-pressure nitrogen gas to the pressure range suitable for salt bath nitriding process, and nitrogen gas ventilation pressure display table 10 is used to monitor the pressure of nitrogen gas in real time, to ensure that nitrogen gas supply is in the suitable pressure range, and operating personnel can directly see the pressure state of current nitrogen gas, and timely adjust pressure reducing valve to ensure the stability and efficiency of salt bath nitriding process.

[0031] In the utility model, air supply assembly includes: air supply pipeline 2, first air switch valve 5 of setting on air supply pipeline 2, air supply pipeline 2 is connected with air pressure reducing valve 8 and air ventilation pressure display table 11 in proper order, air supply pipeline 2 is responsible for the air from gas source delivery to the device of salt bath nitriding nitriding, first air switch valve 5 is used to control the on-off of air, air pressure reducing valve 8 reduces high-pressure air to the working pressure range suitable for salt bath nitriding process, and air ventilation pressure display table 11 is used to monitor the pressure of air in real time, to ensure that air supply is in the suitable pressure range, and the pressure reducing valve can be adjusted in time, to ensure the stability and efficiency of salt bath nitriding process.

[0032] In the utility model, oxygen supply assembly includes: oxygen supply pipeline 3, first oxygen switch valve 6 of setting on oxygen supply pipeline 3, oxygen supply pipeline 3 is connected with pure oxygen pressure reducing valve 9 and oxygen ventilation pressure display table 12 in proper order, oxygen supply pipeline 3 is responsible for the oxygen from gas source delivery to the device of salt bath nitriding nitriding, first oxygen switch valve 6 is used to control the on-off of oxygen, pure oxygen pressure reducing valve 9 can reduce high-pressure oxygen to the working pressure suitable for salt bath nitriding process, and oxygen ventilation pressure display table 12 is used to monitor the pressure of oxygen in real time, to ensure that oxygen supply is in the suitable pressure range.

[0033] The utility model discloses, a plurality of nitrogen gas control pipeline 13 set gradually have a plurality of second nitrogen gas switch valve 16 and a plurality of third nitrogen gas switch valve 17, a plurality of air control pipeline 14 set up second air switch valve 18, a plurality of oxygen control pipeline 15 set up second oxygen switch valve 19, through setting a plurality of switch valve, can realize to a plurality of gas flow multilevel control, carry out more fine adjustment, can accurately control the gas ratio and pressure in the salt bath nitriding process.

[0034] The utility model discloses, a plurality of nitrogen gas control pipeline 13 set gradually have a plurality of second nitrogen gas switch valve 16 and a plurality of third nitrogen gas switch valve 17, a plurality of air control pipeline 14 set up second air switch valve 18, a plurality of oxygen control pipeline 15 set up second oxygen switch valve 19, through setting a plurality of switch valve, can realize to a plurality of gas flow multilevel control, carry out more fine adjustment, can accurately control the gas ratio and pressure in the salt bath nitriding process.

[0035] The utility model discloses, a plurality of nitrogen gas control pipeline 13, a plurality of air control pipeline 14 and a plurality of oxygen control pipeline 15 link common constitution a plurality of total control pipeline 22, a plurality of total control pipeline 22 set gradually have a plurality of ventilation flow regulating valve 23, a plurality of ventilation switch valve 24, a plurality of ventilation flow display table 25 and a plurality of total pressure display table 26. The control pipeline of different gas is gathered into total control pipeline 22, can realize the integrated management of gas supply, simplify the operation process, improve operating efficiency. Through ventilation flow regulating valve 23 and ventilation switch valve 24 on total control pipeline 22, can unify the control of gas's flow and on-off, be convenient for realizing accurate gas mixing ratio and pressure control, ventilation flow display table 25 and total pressure display table 26 provide real time monitoring function, so that operating personnel can visually see the current gas's flow and pressure state, accurately regulate gas flow to satisfy the accurate demand of gas supply in the salt bath nitriding process.

[0036] The utility model discloses, a plurality of nitrogen gas control pipeline 13 between a plurality of second nitrogen gas switch valve 16 and a plurality of third nitrogen gas switch valve 17 link a plurality of nitrogen gas exhaust pipeline 20, a plurality of nitrogen gas exhaust pipeline 20 set up a plurality of nitrogen gas exhaust valve 21. Through the reasonable setting exhaust pipeline and exhaust valve, can effectively manage and control the discharge of nitrogen gas, reduce the waste of nitrogen gas.

[0037] The utility model discloses, if several ventilation flow display table 25's measurement range is 0 to 30 liters per minute, several total pressure display table 26's measurement range is 0~0.1MPa, nitrogen ventilation pressure display table 10, air ventilation pressure display table 11 and oxygen ventilation pressure display table 12's measurement range is 0~0.1MPa, several total control pipeline 22's end is connected on salt bath pool.

[0038] The utility model discloses, if several ventilation flow display table 25's measurement range is 0 to 30 liters per minute, several total pressure display table 26's measurement range is 0~0.1MPa, nitrogen ventilation pressure display table 10, air ventilation pressure display table 11 and oxygen ventilation pressure display table 12's measurement range is 0~0.1MPa, several total control pipeline 22's end is connected on salt bath pool.

[0039] The utility model discloses, if several ventilation flow display table 25's measurement range is 0 to 30 liters per minute, several total pressure display table 26's measurement range is 0~0.1MPa, nitrogen ventilation pressure display table 10, air ventilation pressure display table 11 and oxygen ventilation pressure display table 12's measurement range is 0~0.1MPa, several total control pipeline 22's end is connected on salt bath pool.

Claims

1. A multi-gas source gas panel for gas agitation for salt bath nitriding, comprising: Nitrogen gas supply assembly, air supply assembly, and oxygen gas supply assembly are characterized in that; The nitrogen gas supply assembly comprises a nitrogen gas supply pipeline (1), a first nitrogen gas switch valve (4) arranged on the nitrogen gas supply pipeline (1), and a nitrogen gas pressure display table (10) and a nitrogen gas pressure reducing valve (7) connected in sequence to the nitrogen gas supply pipeline (1). The air supply assembly comprises an air supply pipeline (2), a first air switch valve (5) arranged on the air supply pipeline (2), and an air pressure display table (11) and an air pressure reducing valve (8) connected in sequence to the air supply pipeline (2). The oxygen gas supply assembly comprises an oxygen gas supply pipeline (3), a first oxygen gas switch valve (6) arranged on the oxygen gas supply pipeline (3), and an oxygen gas pressure display table (12) and an oxygen gas pressure reducing valve (9) connected in sequence to the oxygen gas supply pipeline (3).

2. A multi-gas supply panel for gas agitation of salt bath nitriding according to claim 1, characterized in that: A plurality of nitrogen gas control pipelines (13) are connected in sequence to the nitrogen gas supply pipeline (1), a plurality of air control pipelines (14) are connected in sequence to the air supply pipeline (2), and a plurality of oxygen control pipelines (15) are connected in sequence to the oxygen gas supply pipeline (3).

3. A multi-gas panel for supplying gas for stirring a salt bath nitriding process according to claim 2, characterized in that: A plurality of second nitrogen gas switch valves (16) and a plurality of third nitrogen gas switch valves (17) are arranged in sequence on a plurality of nitrogen gas control pipelines (13).

4. A multi-gas panel for supplying gas for stirring a salt bath nitriding process according to claim 2, wherein: A plurality of second air switch valves (18) are arranged on a plurality of air control pipelines (14).

5. A multi-gas panel for gas agitation for salt bath nitriding according to claim 2, characterized in that: A plurality of second oxygen gas switch valves (19) are arranged on a plurality of oxygen control pipelines (15).

6. A multi-gas panel for supplying gas for stirring a salt bath nitriding process according to claim 2, wherein: A plurality of nitrogen gas control pipelines (13), a plurality of air control pipelines (14), and a plurality of oxygen control pipelines (15) are connected to form a plurality of total control pipelines (22).

7. A multi-gas panel for supplying gas for stirring a salt bath nitriding process according to claim 3, wherein: A plurality of nitrogen gas exhaust pipelines (20) are connected to a plurality of nitrogen gas control pipelines (13) between a plurality of second nitrogen gas switch valves (16) and a plurality of third nitrogen gas switch valves (17), and a plurality of nitrogen gas exhaust valves (21) are arranged on a plurality of nitrogen gas exhaust pipelines (20).

8. A multi-gas panel for supplying gas for stirring a salt bath nitriding process according to claim 6, wherein: A plurality of ventilation flow regulating valves (23), a plurality of ventilation switch valves (24), a plurality of ventilation flow display tables (25), and a plurality of total pressure display tables (26) are arranged in sequence on a plurality of total control pipelines (22).

9. A multi-gas panel for supplying gas for stirring a salt bath nitriding process according to claim 8, characterized in that: The measurement range of a plurality of ventilation flow display tables (25) is 0-30 liters per minute, and the measurement range of a plurality of total pressure display tables (26) is 0-0.1 MPa.

10. A multi-gas panel for supplying gas for stirring a salt bath nitriding process according to claim 6, wherein: The measurement range of the nitrogen gas ventilation pressure display table (10), the air ventilation pressure display table (11), and the oxygen gas ventilation pressure display table (12) is 0-0.1 MPa, and the end of a plurality of total control pipelines (22) is connected to a salt bath pool.

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