Gas-water separator and manufacturing method thereof

By adopting a gas-water separator with lateral design and laser welding technology, the problems of low separation efficiency, large installation space and welding quality of traditional longitudinal installation equipment are solved, and more efficient gas-water separation and more stable equipment performance are achieved.

CN120094254APending Publication Date: 2025-06-06XINCHANG COUNTY JIE CHUANG HLDG CO LTD
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Patent Information

Application Number
CN202510278884.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-11
Publication Date
2025-06-06

AI Technical Summary

Technical Problem

Traditional longitudinally installed air-water separators have problems with low separation efficiency, prone to secondary entrainment, large installation space occupancy, unfavorable for compact layout, large pressure loss, and welding deformation, welding quality and assembly accuracy.

Method used

The gas-water separator with a transverse design, including a transversely mounted cylinder, a first cover plate, a second cover plate and a mounting plate, is manufactured by laser cutting and CNC vehicle processing and manufacturing, is welded using laser welding technology, and is controlled by specific bending and welding parameters to improve the stability and performance of the equipment.

Benefits of technology

It improves the efficiency of gas-water separation, reduces secondary entrainment, reduces installation space requirements, improves the stability and performance of the equipment, and reduces welding deformation and quality problems.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of gas-water separators, and discloses a gas-water separator and a manufacturing method thereof. The gas-water separator comprises a transversely-mounted cylinder, a first cover plate and a second cover plate are arranged at the two ends of the cylinder respectively, a first connector and a connector are arranged on the first cover plate, a second connector is arranged above the cylinder, and a mounting plate is arranged in the side direction of the cylinder. And a third joint which is parallel to the second joint is also arranged above the cylinder body. Compared with the traditional longitudinal gas-water separator, the gas-water separator adopts a transverse design, and has the following advantages: 1, the gas flow distribution is more uniform, so that the gas-water separation efficiency is improved, and the conditions of separation dead angles or overlarge local load caused by non-uniform gas flow are reduced; 2, the mounting stability is higher, the gravity center of the transversely designed gas-water separator is lower, and the contact area between the gas-water separator and the ground or a mounting bracket is larger; the invention relates to a manufacturing method of a gas-water separator, which is applied to be matched with cutting and welding of a numerical control machine tool to improve the processing efficiency and the qualified rate of finished products.
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Description

Technical Field

[0001] The invention relates to the technical field of gas-water separator testing, in particular to a gas-water separator and a manufacturing method thereof. Background Art

[0002] The traditional gas-water separator is installed vertically, which has the following problems:

[0003] 1. Limited separation efficiency and insufficient separation of gas and water: When installed vertically, the movement direction of the air and water flow is consistent with the axial direction of the separator, which makes the residence time of the gas-water mixture in the separator relatively short, resulting in insufficient separation of gas and water, especially for some tiny water droplets or bubbles, which are difficult to achieve complete separation within a limited time, thus affecting the separation efficiency.

[0004] Secondary entrainment is prone to occur: Since the air flow in the separator is relatively smooth, when the separated water droplets flow downward under the action of gravity, they are easily disturbed by the high-speed airflow, and may be re-entrained and mixed into the airflow again, resulting in poor air-water separation effect.

[0005] High installation space requirements

[0006] Large space occupied: Vertically installed gas-water separators usually require a higher installation space because the length of the separator is perpendicular to the ground. For some places with limited space, such as some small industrial plants or equipment cabins, it may be difficult to meet the installation requirements due to space restrictions.

[0007] Not conducive to compact layout: In some systems that require integrated design, the vertically installed gas-water separator is not conducive to the compact layout of the equipment. It will increase the size of the entire system in the vertical direction, affecting the overall structural design and space utilization efficiency of the system.

[0008] Large pressure loss and increased air flow resistance: When the gas-water mixture flows in the vertically installed separator, it needs to overcome the resistance of gravity and the internal structure of the separator. Since the airflow direction is perpendicular to the gravity direction, the airflow needs to consume more energy during the rising process, resulting in a large pressure loss. This will not only increase the operating cost of the system, but may also affect the performance of the entire system.

[0009] Impact on system stability: Large pressure loss may affect the entire process, especially for some systems with strict pressure requirements, such as pneumatic control systems, vacuum systems, etc. Unstable pressure may cause unstable working state of the system and affect the normal operation of the equipment.

[0010] The current gas-water separator manufacturing method mainly has the following problems:

[0011] Welding deformation problem

[0012] Structural design factors: The structure of the gas-water separator is usually complex, with a variety of components of different shapes and sizes, such as the cylinder, head, and pipe. The welded joints of these components are various. During the welding process, due to the uneven distribution of the welds and inconsistent welding heat input, it is easy to cause uneven thermal deformation of the components. For example, when welding the circumferential seam between the cylinder and the head, due to the long weld and large welding heat-affected zone, it is easy to cause elliptical deformation or local bulging of the cylinder and the head.

[0013] Influence of welding process parameters: Welding current, voltage, welding speed and other process parameters have a direct impact on welding deformation. If the parameters are not selected properly, such as too large welding current and too slow welding speed, the welding heat input will be too much, resulting in uneven heating of the weldment, thus causing large deformation. Taking the pipe welding of the gas-water separator as an example, if the welding parameters are not appropriate, the connection between the pipe and the cylinder may cause angular deformation, affecting the appearance and installation size of the equipment.

[0014] Welding quality issues

[0015] Weld defects: In the assembly welding of the gas-water separator, common weld defects include pores, slag inclusions, cracks, etc. Porosity may be caused by the welding material being damp, the oil or rust on the weld surface not being cleaned, and the gas cannot escape in time during the welding process. Slag inclusions may be caused by the slag not being removed in time during the welding process, or the welding current is too small, the welding speed is too fast, resulting in the slag not having time to float up and remaining in the weld. The causes of cracks are more complicated and may be related to improper selection of welding materials, unreasonable welding process, and large restraint of weldments. For example, when welding a high-strength stainless steel gas-water separator, if the toughness of the welding material is insufficient, cold cracks are likely to occur in the weld.

[0016] Insufficient performance of welding joints: The gas-water separator needs to withstand certain pressure and medium corrosion during operation, so the performance requirements of the welding joints are relatively high. If the welding process is unreasonable, the strength, toughness, corrosion resistance and other properties of the welding joints may not meet the design requirements. For example, when welding a carbon steel gas-water separator, if proper heat treatment is not performed after welding, the hardness of the welding joint may be too high, the toughness may be reduced, and brittle fracture may occur easily during long-term use.

[0017] Assembly accuracy issues

[0018] Impact of component processing accuracy: During the processing of the various components of the gas-water separator, if the dimensional accuracy and geometric tolerances cannot meet the design requirements, it will directly affect the assembly accuracy. For example, if the roundness and straightness of the cylinder are out of tolerance, and the curvature radius of the head does not meet the requirements, it will cause problems such as misalignment and uneven gaps when assembling the cylinder and the head, thereby affecting the welding quality and the overall performance of the equipment.

[0019] Unreasonable assembly process: During the assembly process, if reasonable assembly process and fixtures are not used, it is difficult to ensure assembly accuracy. For example, when assembling the internal components of the gas-water separator, if positioning fixtures are not used, the installation position of the internal components may deviate greatly, affecting the gas-water separation effect. In addition, unreasonable welding sequence during the assembly process may also cause large deformation of the weldment during the welding process, thereby affecting the assembly accuracy.

[0020] Production efficiency issues

[0021] Complex welding process: The welding workload of the gas-water separator is large, and the welding joints are diverse, which requires the use of a variety of welding processes and methods. For example, for the welding of thick plates, multi-layer and multi-pass welding processes may be required, which not only increases the welding time and cost, but also requires high operating skills of the welder, and is prone to unstable welding quality.

[0022] It increases auxiliary time, reduces production efficiency, and also affects its service life and performance, thus affecting production efficiency. Summary of the invention

[0023] To solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0024] A gas-water separator comprises a transversely mounted cylinder, wherein a first cover plate and a second cover plate are respectively arranged at both ends of the cylinder, a first joint and an interface are arranged on the first cover plate, a second joint is arranged above the cylinder, and a mounting plate is arranged laterally of the cylinder.

[0025] A third joint is also arranged above the cylinder and is arranged side by side with the second joint.

[0026] In terms of height, the first joint and the interface are located below the second joint and the third joint.

[0027] A method for manufacturing a gas-water separator, used for manufacturing any one of the gas-water separators in the above schemes, comprises the following steps:

[0028] 1) The cylinder is made of stainless steel and is cut by laser. The laser power is 2500-3000W, the cutting speed is 28-35m / min, the auxiliary gas is nitrogen, the gas pressure is 10bar, and the nozzle diameter is 1.5mm;

[0029] 2) The first cover plate, the second cover plate and the mounting plate are made of stainless steel and laser cut. The laser power is 2500-3000W, the cutting speed is 28-35m / min, the auxiliary gas is nitrogen or air, the air pressure is 10bar, and the nozzle diameter is 1.5mm;

[0030] 3) Installation plate bending method, according to the bending force calculation formula, P = 650s 2 l / 1000v,

[0031] Where P is the bending force (kN), s is the plate thickness (mm), l is the plate length (mm), and v is the lower die slot width (mm);

[0032] This formula is calculated based on the strength of the material. When bending stainless steel, multiply the data in the table by a coefficient of 1.5 times;

[0033] The width of the lower die slot usually uses the die opening size of v=6s (material thickness);

[0034] 5) The first joint and the interface are located at the second joint and the third joint, and are processed by CNC lathe.

[0035] The back cutting depth is divided into two steps: rough machining and fine machining:

[0036] Rough machining: When the blank allowance is 5-10mm, it can be cut in 2 or more times, and the back cutting depth is 1-3mm each time;

[0037] Finishing: back cutting depth is 0.1-0.5mm;

[0038] The feed rate is divided into two steps: rough machining and fine machining:

[0039] Rough machining: The machining feed rate is 0.2-0.5mm / r.

[0040] Finishing: The feed rate is 0.05-0.2mm / r;

[0041] Cutting speed is divided into two steps: rough machining and fine machining:

[0042] During rough machining, the cutting speed is 60-120m / min;

[0043] During finishing, the cutting speed is 100-200m / min;

[0044] Cutting tool geometry:

[0045] Rake angle: 10°-15° for rough machining and 15°-20° for fine machining;

[0046] Back angle: 6°-8° for rough machining and 8°-12° for fine machining;

[0047] Main deflection angle: The main deflection angle is 45°-90°;

[0048] Blade inclination angle: The blade inclination angle is generally -5°-0° during rough machining, and 0°-5° during fine machining;

[0049] 5) Welding steps: first, laser weld the first joint and the interface on the first cover plate, then laser weld the first cover plate and the second cover plate at both ends of the cylinder, and finally laser weld the second joint and the third joint on the cylinder.

[0050] The mounting plate is bent at 90 degrees. The stainless steel mounting plate is bent using a tool, and the bending angle of the bending tool is designed to be between 85 and 88 degrees.

[0051] In the rough machining of the back cutting depth: the blank allowance is 10mm, and it is divided into 4 rough machining, and the back cutting depth each time is about 2.5mm.

[0052] The main deflection angle in the cutting tool geometry: The main deflection angle for machining a workpiece with low rigidity is greater than that for machining a workpiece with high rigidity.

[0053] In laser welding;

[0054] Control laser power: For stainless steel cover plates with a thickness of 0.5-2mm, the average laser power is 100-500W;

[0055] Control welding speed: For stainless steel cover plates with a thickness of 0.5-2mm, the welding speed can be 50-200mm / s;

[0056] Control the defocus amount: for stainless steel laser welding, the defocus amount is within the range of 0-5mm;

[0057] Control the shielding gas: The shielding gas is argon or nitrogen, and the flow rate of the shielding gas is 5-20L / min.

[0058] For cover plate welding of 1mm thick stainless steel cover plate, the power is 200-300W; for 1mm thick cover plate, the welding speed can be 100-150mm / s; for thin plate welding, the defocus amount can be selected as 0.5-1mm; for the protective gas for thin plate welding, the flow rate is 5-10L / min, and the purity of the gas should be no less than 99.99%.

[0059] Compared with existing technologies:

[0060] A gas-water separator adopts a horizontal design, which has the following advantages over the traditional vertical design: 1. The airflow distribution is more uniform, which helps to improve the efficiency of gas-water separation and reduce the separation dead angle or local overload caused by uneven airflow. 2. The installation stability is higher. The gas-water separator with a horizontal design has a lower center of gravity and a larger contact area with the ground or the mounting bracket, so it has higher stability after installation, thereby ensuring the normal operation and safety of the equipment.

[0061] A method for manufacturing a gas-water separator is used to improve processing efficiency and finished product qualification rate by coordinating the method with rough processing and fine processing such as cutting and welding of numerical control machine tools. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] Figure 1 It is a schematic front view of the structure of the present invention. DETAILED DESCRIPTION

[0063] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0064] The present invention provides a gas-water separator, which adopts a transverse design and has the following advantages compared with the traditional longitudinal design: 1. The airflow distribution is more uniform. For the gas-water separator with a transverse design, after the gas enters the separator, there are more paths and spaces in the transverse space for diffusion and buffering, so that the airflow can be more evenly distributed in the separator, which helps to improve the efficiency of gas-water separation and reduce the separation dead angle or excessive local load caused by uneven airflow. In contrast, the gas-water separator with a longitudinal design may be affected by gravity and equipment structure in airflow distribution, resulting in uneven airflow distribution; 2. The installation stability is higher. The gas-water separator with a transverse design has a lower center of gravity and a larger contact area with the ground or mounting bracket, so it has higher stability after installation. Especially in some environments with vibration or shaking, such as in moving vehicles, ships or industrial sites with machine vibration, the gas-water separator with a transverse design is less likely to tip over or shift due to external forces, thereby ensuring the normal operation and safety of the equipment.

[0065] The specific structure of the gas-water separator includes a transversely installed cylinder 5, with a first cover plate 3 and a second cover plate 6 respectively provided at both ends of the cylinder 5, a first cover plate 3 is provided with a first joint 1 and an interface 2, a second joint 4 is provided above the cylinder 5, a first mounting plate 7 and a second mounting plate 8 are provided laterally of the cylinder 5, and a third joint 9 is also provided above the cylinder 5 parallel to the second joint 4, and in terms of height, the first joint 1 and the interface 2 are located below the second joint 4 and the third joint 9.

[0066] In the present gas-water separator, the first joint 1 and the interface 2 on the first cover plate 3 are used for the entry and exit of the water-vapor mixture, and the second joint 4 and the third joint 9 provided on the cylinder 5 are used for the discharge of the gas. For example, a water-vapor mixture liquid inlet joint is provided on the interface 2, and the water-vapor mixture is introduced, and the dry gas and liquid are separated through the internal gas-liquid separation structure, and the gas is discharged through the second joint 4 and the third joint 9, and the liquid is discharged through the first joint 1.

[0067] The present invention also discloses a method for manufacturing a gas-water separator, which is used to manufacture the above gas-water separator. According to a specific implementation method, the method comprises the following steps:

[0068] 1) The cylinder 5 is made of stainless steel, with a thickness of 1.5 mm in this embodiment, and is cut by laser. The laser power is controlled at 2500-3000 W, the cutting speed is 28-35 m / min, and the auxiliary gas is nitrogen or air, preferably nitrogen, with a purity of ≥99.995%, a pressure of 10 bar, and a nozzle diameter of 1.5 mm;

[0069] 2) The first cover plate 3, the second cover plate 6 and the mounting plate 7 are made of stainless steel and laser cut. The laser power is controlled at 2500-3000W, the cutting speed is 28-35m / min, the auxiliary gas is preferably nitrogen, the purity is ≥99.995%, the gas pressure is 10bar, and the nozzle diameter is 1.5mm;

[0070] 3) Bending method of the mounting plate, according to the calculation formula of bending force, P = 650s 2 l / 1000v,

[0071] Where P is the bending force (kN), s is the plate thickness (mm), l is the plate length (mm), and v is the lower die slot width (mm);

[0072] The formula is based on strength σb = 450N / mm 2 The calculation is based on the material. When bending stainless steel, multiply the data in the table by a coefficient of 1.5 times;

[0073] The bending mold during the bending process is:

[0074] Upper die: The arc radius of the upper die will affect the forming effect of the bend. For stainless steel plates with a thickness of no more than 6 mm, use a fillet radius close to the plate thickness; when the plate thickness is greater than 6 mm and less than 12 mm, the fillet radius is 1.25 to 1.5 times the plate thickness; when the plate thickness is not less than 12 mm, the fillet radius is generally 2 to 3 times the plate thickness.

[0075] The width of the lower die slot is usually v = 6s (s is the material thickness);

[0076] Therefore, when the sheet length is 1m, for a 1mm thick stainless steel plate, if the width of the lower die groove is 6mm, the calculated bending force is approximately 108.3kN; for a 3mm thick stainless steel plate, the width of the lower die groove is 18mm; for a 5mm thick stainless steel plate, the width of the lower die groove is 30mm. As the plate thickness increases, the bending force needs to be greatly increased.

[0077] 6) The first joint 1, the interface 2, the second joint 4 and the third joint 9 are processed by CNC lathe.

[0078] The back cutting depth is divided into two steps: rough machining and fine machining: this embodiment adopts stainless steel, which has high strength and toughness. The back cutting depth during rough machining is determined according to the blank allowance and machine tool power.

[0079] Rough machining: When the blank allowance is 5-10mm, it can be cut in 2 or more times, and the back cutting depth is 1-3mm each time;

[0080] To calculate the back cutting amount during rough machining of stainless steel, it is necessary to comprehensively consider the blank allowance, machine tool power and other related factors. The following is a calculation method based on empirical formulas and actual factors:

[0081] Calculation steps

[0082] Determine the unit cutting force: The unit cutting force kc of stainless steel materials is usually between 2000-3000MPa. For the convenience of calculation, 2500MPa is taken here.

[0083] Calculate the maximum cutting force allowed by the machine tool power: According to the machine tool power P (unit: kW) and cutting force Fc (unit: N), cutting speed v c (Unit: m / min) The relationship between P = Fc × v c / 60×1000, it can be deduced that Fc=P×60×1000 / v c For rough machining of stainless steel, the cutting speed v c Generally, 60-90m / min is used, and 75m / min is used here. When the machine power P is 3-10kW, taking P = 3kW as an example, the calculation can be obtained

[0084] F c1 =3×60×1000 / 75=2400N;

[0085] Taking P = 10kW as an example, we can get

[0086] F c2 =10×60×1000 / 75=8000N.

[0087] Therefore, when the machine tool power is 3-10kW, the allowable cutting force range is roughly 2400-8000N.

[0088] Calculate the depth of cut according to the cutting force: According to the cutting force formula F c =k c ×a p ×f(where a p is the back cutting depth, f is the feed rate), we can get a p =F c / k c ×f. When rough machining stainless steel, the feed rate f is generally between 0.1-0.3mm / r, and f=0.2mm / r.

[0089] When F c =2400N, a p1 =2400 / 2500×0.2=4.8m;

[0090] When F c =8000N, ap2=8000 / 2500×0.2=16mm. However, considering the blank allowance and the actual processing conditions, the back cutting depth cannot exceed the blank allowance, and it needs to be cut in multiple times.

[0091] Determine the back cutting amount based on the blank allowance

[0092] When the blank allowance is 5-10mm, and the machine power is close to 3kW:

[0093] The first cutting depth can be set to a p1 =2mm, at this time

[0094] F c1 =2500×2×0.2=1000N, which is less than the maximum cutting force of 2400N allowed by the machine tool power.

[0095] The second cutting depth is set to a p2 =1.5mm, F c2 =2500×1.5×0.2=750N, the total back cutting depth of two cuts is 3.5mm. If the blank allowance is 5mm, a third finishing cut can be carried out, and the back cutting depth is 0.5-1mm; if the blank allowance is 10mm, multiple cuts are required later, and the back cutting depth each time can be between 1-2mm, which can be adjusted according to actual conditions.

[0096] If the machine power is close to 10kW:

[0097] The first cutting depth can be set to a p1 =3.5mm,

[0098] F c1 =2500×3.5×0.2=1750N, which is much smaller than the maximum cutting force of 8000N allowed by the machine tool power.

[0099] The second cutting depth is set to a p2 =3mm, F c2 =2500×3×0.2=1500N, the total back cutting depth of two cuts is 6.5mm. If the blank allowance is 10mm, another back cutting depth of 1-2mm can be performed, and then finishing cutting can be performed. The back cutting depth of finishing cutting is 0.5-1mm.

[0100] The above are reference calculation values. The following values ​​are obtained based on the above situation;

[0101] Finishing: back cutting depth is 0.1-0.5mm;

[0102] The feed rate is divided into two steps: rough machining and fine machining:

[0103] Rough machining: The machining feed rate is 0.2-0.5mm / r.

[0104] Finishing: The feed rate is 0.05-0.2mm / r;

[0105] Cutting speed is divided into two steps: rough machining and fine machining:

[0106] During rough machining, the cutting speed is 60-120m / min;

[0107] During finishing, the cutting speed is 100-200m / min;

[0108] Cutting tool geometry:

[0109] Rake angle: 10°-15° for rough machining and 15°-20° for fine machining;

[0110] Back angle: 6°-8° for rough machining and 8°-12° for fine machining;

[0111] Main deflection angle: The main deflection angle is 45°-90°;

[0112] Blade inclination angle: The blade inclination angle is generally -5°-0° during rough machining, and 0°-5° during fine machining;

[0113] 6) Welding step: first, laser weld the first joint 1 and the interface 2 on the first cover plate 3, then laser weld the first cover plate 3 and the second cover plate 6 at both ends of the cylinder 5, and finally laser weld the second joint 4 and the third joint 9 on the cylinder 5.

[0114] The mounting plate is bent at 90 degrees. The stainless steel mounting plate is bent using a tool, and the bending angle of the bending tool is designed to be between 85 and 88 degrees.

[0115] In the rough machining of the back cutting depth: the blank allowance is 10mm, and it is divided into 4 rough machining, and the back cutting depth each time is about 2.5mm.

[0116] The main deflection angle in the cutting tool geometry: The main deflection angle for machining a workpiece with low rigidity is greater than that for machining a workpiece with high rigidity.

[0117] CNC system parameters

[0118] The programming origin should be determined according to the design requirements and processing technology of the workpiece. Generally, it is selected at the center of the right end face or the center of the left end face of the workpiece, which is convenient for programming and size calculation.

[0119] Coordinate system setting, commonly used coordinate systems are G54-G59 workpiece coordinate system. Select the appropriate workpiece coordinate system through instructions in the program, such as "G54" means selecting the G54 workpiece coordinate system.

[0120] Feed rate and spindle speed rate can be adjusted according to the actual situation during the processing. Generally, the initial setting is 100%. If the cutting force is too large or the surface quality is poor during the processing, the feed rate or spindle speed rate can be appropriately reduced.

[0121] In laser welding;

[0122] Control laser power: For stainless steel cover plates with a thickness of 0.5-2mm, the average laser power is 100-500W;

[0123] Control welding speed: For stainless steel cover plates with a thickness of 0.5-2mm, the welding speed can be 50-200mm / s;

[0124] Control the defocus amount: for stainless steel laser welding, the defocus amount is within the range of 0-5mm;

[0125] Control the shielding gas: The shielding gas is argon or nitrogen, and the flow rate of the shielding gas is 5-20L / min.

[0126] For cover plate welding of 1mm thick stainless steel cover plate, the power is 200-300W; for 1mm thick cover plate, the welding speed can be 100-150mm / s; for thin plate welding, the defocus amount can be selected as 0.5-1mm; for the protective gas for thin plate welding, the flow rate is 5-10L / min, and the purity of the gas should be no less than 99.99%.

[0127] In a further embodiment,

[0128] If the thickness of the cover increases to 3-5mm, the laser power needs to be increased to 500-1500W. For example, to weld a 3mm thick 316L stainless steel cover, the power is 500-800W; to weld a 5mm thick cover, the power needs to be 1000-1500W.

[0129] Welding speed: For thin cover plates (0.5-2mm), the welding speed is faster, usually 50-200mm / s. Specifically, the welding speed of a 0.5mm thick cover plate can reach 150-200mm / s; the welding speed of a 1mm thick cover plate can be 100-150mm / s; and the welding speed of a 2mm thick cover plate is 50-100mm / s.

[0130] For 3-5mm thick cover plates, the welding speed should be reduced accordingly, generally 10-50mm / s. For example, the welding speed of 3mm thick cover plates can be 30-50mm / s; the welding speed of 5mm thick cover plates can be 10-30mm / s.

[0131] Defocus: Defocus has a great influence on the shape and penetration of the weld. Usually, for stainless steel laser welding, the defocus is in the range of 0-5mm. When the defocus is 0mm, the power density is the highest and the penetration is the greatest, but the weld width may be smaller; as the defocus increases, the weld depth decreases and the width increases. Generally, the defocus can be set at 0-2mm for testing, and then adjusted according to the actual formation of the weld. For example, for thin plate welding, the defocus can be selected as 0-1mm; for thick plate welding, the defocus can be 1-2mm.

[0132] Shielding gas: In order to prevent weld oxidation and improve weld quality, shielding gas is required. Commonly used shielding gases include argon and nitrogen. The flow rate of shielding gas is generally 5-20L / min. For thin plate welding, the flow rate can be 5-10L / min; for thick plate welding or when higher weld quality is required, the flow rate can be 10-20L / min. The purity of the gas should not be less than 99.99%.

[0133] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A gas-water separator, characterized in that: It comprises a transversely mounted cylinder, with a first cover plate and a second cover plate respectively arranged at both ends of the cylinder, a first joint and an interface being arranged on the first cover plate, a second joint being arranged above the cylinder, and a mounting plate being arranged on the side of the cylinder.

2. A gas-water separator according to claim 1, characterized in that: A third joint is also arranged above the cylinder and is arranged side by side with the second joint.

3. A gas-water separator according to claim 2, characterized in that: In terms of height, the first joint and the interface are located below the second joint and the third joint.

4. A method for manufacturing a gas-water separator, characterized in that: The method for manufacturing a gas-water separator according to any one of claims 1 to 3 comprises the following steps: 1) The cylinder 5 is made of stainless steel and is cut by laser. The laser power is 2500-3000W, the cutting speed is 28-35m / min, the auxiliary gas is nitrogen, the gas pressure is 10bar, and the nozzle diameter is 1.5mm; 2) The first cover plate 3, the second cover plate 6 and the mounting plate 7 are made of stainless steel and are laser cut with a laser power of 2500-3000W, a cutting speed of 28-35m / min, nitrogen or air as the auxiliary gas, a gas pressure of 10bar, and a nozzle diameter of 1.5mm; 3) Bending method of mounting plate 7, according to the calculation formula of bending force, P = 650s 2 l / 1000v, Where P is the bending force (kN), s is the plate thickness (mm), l is the plate length (mm), and v is the lower die slot width (mm); This formula is calculated based on the strength of the material. When bending stainless steel, multiply the data in the table by a coefficient of 1.5 times; The width of the lower die slot usually uses the die opening size of v=6s (material thickness); 4) The first joint 1, the interface 2, the second joint 4 and the third joint 9 are processed by CNC lathe; wherein, The back cutting depth is divided into two steps: rough machining and fine machining: Rough machining: When the blank allowance is 5-10mm, it can be cut in 2 or more times, and the back cutting depth is 1-3mm each time; Finishing: back cutting depth is 0.1-0.5mm; The feed rate is divided into two steps: rough machining and fine machining: Rough machining: The machining feed rate is 0.2-0.5mm / r. Finishing: The feed rate is 0.05-0.2mm / r; Cutting speed is divided into two steps: rough machining and fine machining: During rough machining, the cutting speed is 60-120m / min; During finishing, the cutting speed is 100-200m / min; Cutting tool geometry: Rake angle: 10°-15° for rough machining and 15°-20° for fine machining; Back angle: 6°-8° for rough machining and 8°-12° for fine machining; Main deflection angle: The main deflection angle is 45°-90°; Blade inclination angle: The blade inclination angle is generally -5°-0° during rough machining, and 0°-5° during fine machining; 5) Welding step: first, laser weld the first joint 1 and the interface 2 on the first cover plate 3, then laser weld the first cover plate 3 and the second cover plate 6 at both ends of the cylinder 5, and finally laser weld the second joint 4 and the third joint 9 on the cylinder 5.

5. The method for manufacturing a gas-water separator according to claim 4, characterized in that: The mounting plate 7 is bent at 90 degrees. The stainless steel mounting plate 7 is bent using a tool, and the bending angle of the bending tool is designed to be between 85 degrees and 88 degrees.

6. The method for manufacturing a gas-water separator according to claim 4, characterized in that: In the rough machining of the back cutting depth: the blank allowance is 10mm, and it is divided into 4 rough machining, and the back cutting depth each time is 2.5mm.

7. The method for manufacturing a gas-water separator according to claim 4, characterized in that: The main deflection angle in the cutting tool geometry: The main deflection angle for machining a workpiece with low rigidity is greater than that for machining a workpiece with high rigidity.

8. The method for manufacturing a gas-water separator according to claim 4, characterized in that: The method is controlled by a numerical control system, the system includes a programming origin, which is determined according to the design requirements and processing technology of the workpiece and is selected at the center of the right end face or the center of the left end face of the workpiece; Including coordinate system setting, selecting the appropriate workpiece coordinate system through instructions in the program.

9. The method for manufacturing a gas-water separator according to claim 4, characterized in that: In laser welding; Control laser power: For stainless steel cover plates with a thickness of 0.5-2mm, the average laser power is 100-500W; Control welding speed: For stainless steel cover plates with a thickness of 0.5-2mm, the welding speed can be 50-200mm / s; Control the defocus amount: for stainless steel laser welding, the defocus amount is within the range of 0-5mm; Control the shielding gas: The shielding gas is argon or nitrogen, and the flow rate of the shielding gas is 5-20L / min.

10. The method for manufacturing a gas-water separator according to claim 9, characterized in that: For cover plate welding of 1mm thick stainless steel cover plate, the power is 200-300W; for 1mm thick cover plate, the welding speed can be 100-150mm / s; for thin plate welding, the defocus is controlled at 0.5-1mm; for the protective gas for thin plate welding, the flow rate is 5-10L / min, and the purity of the gas should be no less than 99.99%.