An industrial gas mixer

Abstract

The present invention relates to the field of gas mixing technology, and specifically to an industrial gas mixer, comprising a mixing barrel, the axis of which extends in an up-down direction, an air inlet pipe and an exhaust pipe being arranged above the mixing barrel, the mixing barrel comprising a cylindrical section and a conical section, the conical section being located below the cylindrical section, the air inlet pipe being located on the cylindrical section, the gas entering the inner wall of the mixing barrel from the air inlet pipe and moving downward in a spiral around the central axis of the mixing barrel; a mixing assembly being arranged inside the mixing barrel, the mixing assembly comprising a central rod, the central rod coinciding with the central axis of the mixing barrel, guide vanes being wound around the central rod, the guide vanes being spirally arranged on the central rod, the spiral direction of the guide vanes from top to bottom being consistent with the spiral direction of the gas from top to bottom, and the pitch of the guide vanes being consistent with the pitch of the gas, the guide vanes being able to evenly mix the gas on the inner wall of the mixing barrel, thereby improving the mixing effect.

Description

Technical Field

[0001] The present invention relates to the technical field of gas mixing, in particular to an industrial gas mixer. Background Art

[0002] Gas mixing equipment is a device used to mix two or more different gases in a specific proportion. The mixed gas has indispensable applications in industrial sectors such as semiconductors, environmental protection, photovoltaics, chemicals, and medical care.

[0003] Existing gas mixing equipment usually directly mixes gases discharged from different gas cylinders. However, since the gases are stored in a compressed state in the gas cylinders, the directly discharged gases have a lower temperature. The lower temperature slows down the thermal motion of the gas molecules, resulting in difficulty for the gas molecules to diffuse and interpenetrate rapidly during the mixing process. The original aggregation state and concentration gradient cannot be fully broken, which in turn affects the fluidity of the gas in the mixing equipment and makes it impossible to achieve uniform gas mixing. Summary of the Invention

[0004] Based on this, it is necessary to provide an industrial gas mixer to address the technical problem that current gas mixing equipment cannot achieve uniform gas mixing.

[0005] The above purpose is achieved through the following technical solutions:

[0006] An industrial gas mixer includes a mixing cylinder, the axis of which extends in the up-down direction, an air inlet pipe and an exhaust pipe are provided above the mixing cylinder, the air inlet pipe extends along the tangent of the mixing cylinder, the exhaust pipe is located above the air inlet pipe, the exhaust pipe extends radially along the mixing cylinder and corresponds to the center position of the mixing cylinder, the mixing cylinder includes a cylindrical section and a conical section, the conical section is located below the cylindrical section, the air inlet pipe is located on the cylindrical section, under the action of centrifugal force, the multiple gases to be mixed enter the inner wall of the mixing cylinder from the air inlet pipe and move spirally downward around the central axis of the mixing cylinder; a mixing group is provided inside the mixing cylinder The mixing assembly includes a center rod, which coincides with the center axis of the mixing cylinder. A guide blade is wound around the center rod, and the guide blade is spirally arranged on the center rod. The guide blade is arranged in contact with the inner wall of the mixing cylinder, and there is a certain interval between the guide blade and the center rod. The spiral direction of the guide blade from top to bottom is consistent with the spiral direction of the gas from top to bottom, and the pitch of the guide blade is consistent with the pitch of the gas. The multiple gases to be mixed move along the guide blade, and the guide blade can evenly mix the gas on the inner wall of the mixing cylinder. The mixed gas flows upward along the center of the mixing cylinder and is discharged from the exhaust pipe.

[0007] Furthermore, the guide blade is formed by connecting multiple blade units end to end, each blade unit is formed by twisting a rectangular plate, and the blade unit is divided into a head end and a tail end along the circumferential direction of the mixing barrel. The head end is twisted 180° relative to the tail end. The head end of the blade unit is perpendicular to the tail end of the previous adjacent blade unit, and the tail end of the blade unit is perpendicular to the head end of the next adjacent blade unit. A part of the blade units is located in the cylindrical section, and the other part of the blade units is located in the conical section.

[0008] Furthermore, the upper end of the guide blade is fixedly arranged on the inner wall of the mixing barrel, and the lower end of the guide blade is fixedly connected to the central rod.

[0009] Furthermore, a spiral electromagnet is provided on the inner wall of the mixing cylinder, and the spiral direction of the electromagnet from top to bottom is consistent with the spiral direction of the guide blade from top to bottom. The electromagnet can magnetically adsorb the guide blade.

[0010] Furthermore, an end cover is provided above the mixing cylinder, and the exhaust pipe is arranged on the end cover.

[0011] Furthermore, a double-rod electric cylinder is provided on the end cover, and the double-rod electric cylinder includes a cylinder body and a piston rod. Two piston rods are provided and extend from the cylinder body. The lower ends of the two piston rods are fixed on the end cover at the same time to support the cylinder body. The cylinder body is connected to the center rod. By extending and retracting the piston rod in the up and down directions, the cylinder body can be driven to slide up and down, and then the cylinder body drives the lower end of the guide blade to move up and down inside the mixing barrel through the center rod, thereby adjusting the pitch of the guide blade.

[0012] Furthermore, a through hole is provided in the center of the end cover, and the center rod is sealingly and slidably arranged in the through hole.

[0013] Furthermore, a collecting cylinder is provided at the bottom of the mixing cylinder, and the collecting cylinder is used to collect liquid generated by gas mixing.

[0014] Furthermore, a discharge port is provided at the bottom of the collecting cylinder, and the discharge port is used to discharge the liquid generated by the gas mixing.

[0015] Furthermore, the discharge port is provided with a solenoid valve, and the solenoid valve is used to control the opening and closing of the discharge port.

[0016] The beneficial effects of the present invention are:

[0017] The industrial gas mixer provided by the present invention allows multiple gases to be mixed to enter the cylindrical section of the mixing drum at high speed through an inlet pipe and spiral downward along the outer walls of the cylindrical and conical sections. When the gases reach the bottom of the conical section, they are unable to continue downward due to structural constraints and instead reverse upward along the center of the mixing drum, finally flowing out of the exhaust pipe above the mixing drum. By providing guide vanes, and aligning the spiral direction and pitch of the guide vanes from top to bottom with the spiral direction and pitch of the gases from top to bottom, this not only extends the flow path of the gases on the guide vanes but also continuously disperses and remixes the gases under the action of the guide vanes, resulting in uniform mixing of the multiple gases and improving the mixing effect. Furthermore, the gases generate a centrifugal force within the mixing drum, which can separate moisture from the gases and improve the quality of the mixed gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of an industrial gas mixer provided by one embodiment of the present invention.

[0019] Figure 2 A side view of an industrial gas mixer provided in accordance with an embodiment of the present invention.

[0020] Figure 3 for Figure 2 Middle AA section view.

[0021] Figure 4 for Figure 2 Middle BB cross-section view.

[0022] Figure 5 A top view of an industrial gas mixer provided in accordance with an embodiment of the present invention.

[0023] Figure 6 This is a schematic structural diagram of a mixing assembly in an industrial gas mixer provided by one embodiment of the present invention.

[0024] Figure 7 This is a first angle schematic diagram of a blade unit in an industrial gas mixer provided by an embodiment of the present invention.

[0025] Figure 8 This is a second angle schematic diagram of a blade unit in an industrial gas mixer provided by an embodiment of the present invention.

[0026] in:

[0027] 100. Mixing cylinder; 101. Inlet pipe; 102. Exhaust pipe; 103. Cylindrical section; 104. Conical section; 105. Collecting cylinder; 106. End cover; 200. Double-rod electric cylinder; 201. Cylinder body; 202. Center rod; 203. Piston rod; 300. Solenoid valve; 400. Electromagnet; 500. Guide vane; 501. Connecting ring; 502. Blade unit. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings). In the description of the present invention, it should be understood that terms such as "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the device or component being referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0030] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0031] like Figures 1 to 8As shown, an industrial gas mixer provided by one embodiment of the present invention includes a mixing barrel 100, the axis of the mixing barrel 100 extends in the up-down direction, an air inlet pipe 101 and an exhaust pipe 102 are provided above the mixing barrel 100, the air inlet pipe 101 extends along the tangent of the mixing barrel 100, the exhaust pipe 102 is located above the air inlet pipe 101, the exhaust pipe 102 extends in the radial direction of the mixing barrel 100 and corresponds to the center position of the mixing barrel 100, the mixing barrel 100 includes a cylindrical section 103 and a conical section 104, the conical section 104 is located below the cylindrical section 103, the air inlet pipe 101 is located on the cylindrical section 103, under the action of centrifugal force, the multiple gases to be mixed enter the inner wall of the mixing barrel 100 from the air inlet pipe 101 and move spirally downward around the central axis of the mixing barrel 100; A mixing assembly is provided inside the mixing barrel 100, and the mixing assembly includes a center rod 202, which coincides with the central axis of the mixing barrel 100. A guide blade 500 is wound around the center rod 202, and the guide blade 500 is spirally arranged on the center rod 202. The guide blade 500 is arranged in contact with the inner wall of the mixing barrel 100, and there is a certain interval between the guide blade 500 and the center rod 202. The spiral direction of the guide blade 500 from top to bottom is consistent with the spiral direction of the gas from top to bottom, and the pitch of the guide blade 500 is consistent with the pitch of the gas. The multiple gases to be mixed move along the guide blade 500, and the guide blade 500 can evenly mix the gas on the inner wall of the mixing barrel 100. The mixed gas flows upward along the center of the mixing barrel 100 and is discharged from the exhaust pipe 102.

[0032] In this way, the various gases to be mixed enter the cylindrical section 103 of the mixing barrel 100 at high speed through the inlet pipe 101 and spiral downward along the outer walls of the cylindrical section 103 and the conical section 104. When the gas reaches the bottom of the conical section 104, it is restricted by the structure and cannot continue to descend. Instead, it reverses upward along the center of the mixing barrel 100 and finally flows out of the exhaust pipe 102 above the mixing barrel 100. By providing the guide vanes 500 and making the spiral direction and pitch of the guide vanes 500 from top to bottom consistent with the spiral direction and pitch of the gas from top to bottom, this not only extends the flow path of the gas on the guide vanes 500, but also continuously disperses and remixes the gas under the action of the guide vanes 500, so that the various gases are mixed evenly and the mixing effect is improved. In addition, the gas generates a centrifugal force inside the mixing barrel 100, which can separate the moisture in the gas and improve the quality of the mixed gas.

[0033] The mixing cylinder 100 is a transparent cylinder. During the manufacture of an industrial gas mixer, a mixed gas containing a colored gas is first introduced into the mixing cylinder 100 through the inlet pipe 101 to simulate a spiral path of gas from top to bottom. The spiral path of the gas is then marked on the mixing cylinder 100. During use, the guide vanes 500 are then adjusted according to the marked spiral path of the gas.

[0034] like Figures 6 to 8 As shown, the guide vane 500 is composed of multiple blade units 502 connected end to end. Each blade unit 502 is formed by twisting a rectangular plate. The blade units 502 are divided into a head end and a tail end along the circumference of the mixing drum 100. The head end is twisted 180° relative to the tail end. The head end of the blade unit 502 is perpendicular to the tail end of the previous adjacent blade unit 502, and the tail end of the blade unit 502 is perpendicular to the head end of the next adjacent blade unit 502. Some blade units 502 are located in the cylindrical section 103, while others are located in the conical section 104. In this way, each time the gas passes through a guide vane 500, it is rotated, dispersed, and remixed. The continuous rotation, dispersion, and mixing of multiple guide vanes 500 ultimately achieves uniform mixing of the gas. The blade units 502 are made of stainless steel, which is stretchable and deformable. During the manufacturing process, after the head end is twisted 180° relative to the tail end, the two twisted surfaces between the head end and the tail end form two spiral channels, which disperse and mix the gas to be mixed.

[0035] Specifically, the upper end of the guide blade 500 is fixedly set on the inner wall of the mixing barrel 100, the lower end of the guide blade 500 is fixedly connected to the center rod 202, and a connecting ring 501 is provided between the lower end of the guide blade 500 and the center rod 202. The connecting ring 501 is used to prevent the blade unit 502 from being unable to fit together with the center rod 202.

[0036] Furthermore, the sizes of the plurality of blade units 502 are consistent, which facilitates the processing and installation of the guide vanes 500 .

[0037] In other embodiments, the size of the lower blade unit 502 is gradually smaller than the size of the upper blade unit 502 so as to adapt to the size of the cone section 104 .

[0038] Furthermore, a spiral electromagnet 400 is provided on the inner wall of the mixing barrel 100. The spiral direction of the electromagnet 400 from top to bottom is consistent with the spiral direction of the guide vanes 500 from top to bottom. The electromagnet 400 can magnetically attract the guide vanes 500. During use, the electromagnet 400 is energized to impart magnetic properties, thereby attracting the guide vanes 500 in the middle position. This prevents the guide vanes 500 in the middle position from shaking due to the action of the gas, ensures the normal flow of gas along the guide vanes 500, and ensures the gas mixing effect.

[0039] Furthermore, an end cover 106 is provided above the mixing barrel 100 , and the exhaust pipe 102 is disposed on the end cover 106 .

[0040] Furthermore, a double-rod electric cylinder 200 is provided on the end cap 106. The double-rod electric cylinder 200 includes a cylinder body 201 and a piston rod 203. Two piston rods 203 are provided and extend from the cylinder body 201. The lower ends of the two piston rods 203 are simultaneously fixed to the end cap 106 to support the cylinder body 201. The cylinder body 201 is connected to the center rod 202. By extending and retracting the piston rods 203 in the vertical direction, the cylinder body 201 can be driven to slide up and down. In turn, the cylinder body 201 drives the lower end of the guide vane 500 to move up and down within the mixing drum 100 through the center rod 202, thereby fine-tuning the pitch of the guide vane 500. The guide vane 500 can be stretched and deformed as a whole. To facilitate pitch adjustment, a gap is reserved between the inner wall of the mixing drum 100 and the guide vane 100, allowing the diameter of the guide vane 500 to be slightly increased or decreased.

[0041] Since gases of different components and proportions produce slightly different pitches on the inner wall of the mixing barrel 100, the position of the lower end of the guide vane 500 is controlled by the double-rod electric cylinder 200, and the pitch of the guide vane 500 can be fine-tuned to ensure that the guide vane 500 corresponds to the spiral path of the gas.

[0042] Furthermore, a through hole is provided in the center of the end cap 106, and the center rod 202 is sealingly and slidably disposed in the through hole. This prevents gas leakage from the interior of the mixing barrel 100 and improves sealing. Specifically, a rubber sealing ring is provided in the through hole of the end cap 106.

[0043] Furthermore, a collecting cylinder 105 is provided at the bottom of the mixing cylinder 100 for collecting the liquid generated by the gas mixing. The liquid generated by the gas mixing is collected in the collecting cylinder 105, thereby facilitating the separation of the liquid and the gas and improving the quality of the gas mixing.

[0044] Furthermore, a discharge port is provided at the bottom of the collecting cylinder 105, and the discharge port is used to discharge the liquid generated by the gas mixture.

[0045] Furthermore, the discharge port is provided with a solenoid valve 300, which is used to control the opening and closing of the discharge port. After the mixing is completed, when the gas is completely discharged from the inside of the mixing barrel 100, the discharge port is opened by the solenoid valve 300 to enable liquid discharge.

[0046] In combination with the above embodiments, the use principle and working process of the embodiments of the present invention are as follows:

[0047] According to the needs of different components and proportions, various gas raw materials are combined and introduced into the inlet pipe 101 of the mixing drum 100. The gas enters the cylindrical section 103 of the mixing drum 100 and spirals downward along the inner walls of the cylindrical section 103 and the conical section 104. At this time, the pitch of the guide vanes 500 is fine-tuned by adjusting the dual-rod electric cylinder 200 to match the gas pitch and correspond to the inner and outer pitches. The electromagnet 400 is then controlled to attract the guide vanes 500, keeping them fixed in their central position. When the gas reaches the bottom of the conical section 104, it is unable to continue downward due to structural constraints and instead spirals upward along the center of the mixing drum 100, finally exiting through the exhaust pipe 102 above the mixing drum 100. The centrifugal force generated by the gas within the mixing drum 100 separates the water from the gas. After the gas mixing is complete, the electromagnet 400 is turned off and the solenoid valve 300 is opened to allow the liquid to be discharged through the outlet.

[0048] The technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The above-described embodiments merely illustrate several embodiments of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An industrial gas mixer, characterized in that: The mixing drum comprises a mixing drum, the axis of which extends in an up-down direction, an inlet pipe and an exhaust pipe being provided above the mixing drum, the inlet pipe extending along a tangent of the mixing drum, the exhaust pipe being located above the inlet pipe, the exhaust pipe extending radially along the mixing drum and corresponding to the center of the mixing drum, the mixing drum comprising a cylindrical section and a conical section, the conical section being located below the cylindrical section, the inlet pipe being located above the cylindrical section, and the multiple gases to be mixed entering the inner wall of the mixing drum from the inlet pipe under the action of centrifugal force and moving downward in a spiral around the central axis of the mixing drum; The mixing cylinder is a transparent cylinder, and a mixing assembly is provided inside the mixing cylinder. The mixing assembly includes a center rod, the center rod coincides with the central axis of the mixing cylinder, and a guide blade is wound around the center rod. The guide blade is spirally arranged on the center rod, and the guide blade is arranged in contact with the inner wall of the mixing cylinder, and there is a certain interval between the guide blade and the center rod. The spiral direction of the guide blade from top to bottom is consistent with the spiral direction of the gas from top to bottom, and the pitch of the guide blade is consistent with the pitch of the gas. The multiple gases to be mixed move along the guide blade, and the guide blade can evenly mix the multiple gases to be mixed on the inner wall of the mixing cylinder. The mixed gas flows upward along the outer circumference of the center rod of the mixing cylinder and is discharged from the exhaust pipe. The guide vane is formed by connecting a plurality of blade units end to end. Each blade unit is formed by twisting a rectangular plate. The blade unit is divided into a head end and a tail end along the circumferential direction of the mixing drum. The head end is twisted 180 degrees relative to the tail end. The head end of the blade unit is perpendicular to the tail end of the previous adjacent blade unit, and the tail end of the blade unit is perpendicular to the head end of the next adjacent blade unit. Some blade units are located in the cylindrical section, and the other blade units are located in the conical section. The upper end of the guide blade is fixedly provided on the inner wall of the mixing cylinder, and the lower end of the guide blade is fixedly connected to the center rod by a connecting ring to prevent the blade unit from being unable to fit together with the center rod; an end cover is provided above the mixing cylinder, and the exhaust pipe is provided on the end cover, and a double-rod electric cylinder is provided on the end cover, which includes a cylinder body and a piston rod, and two piston rods are provided and extend from the cylinder body. The lower ends of the two piston rods are fixedly provided on the end cover at the same time to support the cylinder body, and the cylinder body is connected to the center rod, and the piston rod can be extended and retracted in the up and down directions to drive the cylinder body to slide up and down, and then the cylinder body drives the lower end of the guide blade to move up and down inside the mixing cylinder through the center rod, thereby adjusting the pitch of the guide blade.

2. The industrial gas mixer according to claim 1, characterized in that A spiral electromagnet is provided on the inner wall of the mixing cylinder. The spiral direction of the electromagnet from top to bottom is consistent with the spiral direction of the guide blade from top to bottom. The electromagnet can magnetically attract the guide blade.

3. The industrial gas mixer according to claim 1, characterized in that A through hole is provided at the center of the end cover, and the center rod is sealingly and slidably arranged in the through hole.

4. The industrial gas mixer according to claim 1, characterized in that A collecting cylinder is provided at the bottom of the mixing cylinder, and the collecting cylinder is used to collect liquid generated by gas mixing.

5. The industrial gas mixer according to claim 4, characterized in that A discharge port is provided at the bottom of the collecting cylinder, and the discharge port is used to discharge the liquid generated by the gas mixing.

6. The industrial gas mixer according to claim 5, characterized in that The discharge port is provided with a solenoid valve, and the solenoid valve is used to control the opening and closing of the discharge port.

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