A mixed gas continuous filling device

Abstract

The utility model relates to mixed gas filling device technical field, the utility model provides a kind of mixed gas continuous filling device, including cabinet, the inside intermediate position of cabinet is fixedly installed with mixing bin, the left side outer wall of cabinet is fixedly installed with exhaust pipe, the exhaust pipe is communicated with the mixing bin, second solenoid valve is fixedly installed on the exhaust pipe, the inside of cabinet is fixedly installed with baffle at the position below the mixing bin, the inside of cabinet is separated into two groups of gas injection bin by the baffle at the bottom of the mixing bin;Limiting mechanism, the limiting mechanism is installed in the inside of the cabinet, the compressor body is fixedly installed in the top of the mixing bin, second connecting pipe is fixedly installed in the input end of the compressor body. By the above technical scheme, the technical problems that the existing device is difficult to adapt to different specifications of argon tank and oxygen tank, the gas mixing uniformity is poor, and the concentration is unstable due to the influence of temperature during the mixing process are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of mixed gas filling devices, specifically, to a continuous mixed gas filling device. Background Technology

[0002] Mixed gases are often studied as ideal gases. Argon-oxygen mixtures are gases composed of argon and oxygen. Argon and oxygen are commonly used gases in medicine and production. Argon is an inert gas that can be breathed stably without causing irritation to the human body. Oxygen is an essential gas for life. Mixing argon and oxygen in a certain proportion can produce ideal biocompatibility and promote the balance of gases in different parts of the body.

[0003] Many existing continuous filling devices for mixed gases generally lack limiting mechanisms to accommodate argon and oxygen cylinders of different specifications, making the cylinders prone to displacement and shaking, which not only affects the stability of gas supply but also poses safety hazards. In addition, gas mixing is mostly natural mixing, resulting in poor mixing uniformity. It relies on extending the mixing time to ensure that the concentration meets the standard, which reduces filling efficiency. Utility Model Content

[0004] To overcome the above-mentioned defects, this utility model provides a continuous filling device for mixed gas, which solves the technical problems of existing devices being difficult to adapt to argon and oxygen tanks of different specifications, poor gas mixing uniformity, and unstable concentration caused by temperature affecting the mixing process.

[0005] According to one aspect, at least one embodiment of the present invention provides a continuous filling device for mixed gas, comprising: a cabinet, a mixing chamber fixedly installed at the middle position inside the cabinet, an exhaust pipe fixedly installed on the left outer wall of the cabinet, the exhaust pipe being connected to the mixing chamber, a second solenoid valve fixedly installed on the exhaust pipe, and a partition fixedly installed inside the cabinet at a position below the mixing chamber, the cabinet interior at the bottom of the mixing chamber being divided into two sets of gas injection chambers by the partition; A limiting mechanism is installed inside the cabinet. A compressor body is fixedly installed at the top of the mixing chamber. A second connecting pipe is fixedly installed at the input end of the compressor body. The other end of the second connecting pipe is sealed and connected to the mixing chamber. A third solenoid valve is fixedly installed on the second connecting pipe. A third connecting pipe is fixedly installed at the output end of the compressor body. The other end of the third connecting pipe extends to the outside of the cabinet and is fixedly installed with a fourth solenoid valve.

[0006] For example, in at least one embodiment of the present invention, a continuous filling device for mixed gas is provided, which further includes: the limiting mechanism includes a first slide groove, a rotating shaft, a first motor, a second slide groove and a stabilizing rod; the first slide groove is laterally opened at the middle position of the bottom of the cabinet; the rotating shaft is rotatably installed inside the first slide groove; the first motor is fixedly installed at the bottom of the right outer wall of the cabinet; the output end of the first motor is fixedly connected to the rotating shaft; the second slide groove is laterally opened at both ends of the first slide groove inside the cabinet; and a stabilizing rod is fixedly installed inside each set of second slide grooves.

[0007] For example, in a continuous filling device for mixed gas provided in at least one embodiment of the present invention, the limiting mechanism further includes: a first V-shaped limiting plate, a second V-shaped limiting plate, and a fitting groove; each group of the gas injection chambers is provided with a first V-shaped limiting plate and a second V-shaped limiting plate; the first V-shaped limiting plates and the second V-shaped limiting plates in the two groups of the gas injection chambers are symmetrically arranged; each group of the rotating shafts in the gas injection chambers is symmetrically provided with threaded segments with opposite thread directions; each group of the first V-shaped limiting plates and each group of the second V-shaped limiting plates are threadedly connected to the threaded segments at corresponding positions; and each group of the first V-shaped limiting plates and each group of the second V-shaped limiting plates are slidably connected to the stabilizing rod at corresponding positions; and each group of the first V-shaped limiting plates is provided with a fitting groove that matches the second V-shaped limiting plate.

[0008] For example, in a continuous filling device for mixed gas provided in at least one embodiment of the present invention, the device further includes: a tank is provided inside each group of gas injection chambers, a gas injection pipe is fixedly installed at the top of each group of tanks, a first connecting pipe is installed through the top of each group of gas injection chambers, the first connecting pipe of each group is sealed and connected to the gas injection pipe at the corresponding position, and a first solenoid valve is fixedly installed on each group of first connecting pipes.

[0009] For example, in a continuous filling device for mixed gas provided in at least one embodiment of the present invention, a temperature sensor is fixedly installed at the bottom of the mixing chamber, a cavity is opened inside the outer wall of the rear end of the mixing chamber, and several sets of electric heating tubes are fixedly installed in an array at equal intervals inside the cavity.

[0010] For example, in at least one embodiment of the present invention, a continuous filling device for mixed gas is provided, which further includes: a bracket fixedly installed on the right side of the mixing chamber, a fan blade rotatably installed on the bracket, a second motor fixedly installed on the outer wall of the right side of the cabinet, a drive shaft fixedly installed at the output end of the second motor, the other end of the drive shaft being fixedly connected to the fan blade, and a sealed bearing installed at the rotatable connection between the drive shaft and the outer wall of the mixing chamber.

[0011] For example, in at least one embodiment of the present invention, a continuous filling device for mixed gas is provided, which further includes: a cabinet door is rotatably installed at the left edge of the front end of the cabinet, a handle is fixedly installed on the outer wall of the front end of the cabinet door, and a PLC controller is fixedly installed on the outer wall of the left side of the cabinet.

[0012] For example, in a continuous filling device for mixed gas provided in at least one embodiment of the present invention, a support leg is fixedly installed at each of the four corners of the bottom of the cabinet, and a support pad is fixedly installed at the bottom of each set of support legs.

[0013] The beneficial effects of the embodiments of this utility model are as follows: 1. In this device, the setting of the limiting mechanism allows for flexible clamping of argon and oxygen cylinders of different specifications, preventing cylinder displacement and shaking, ensuring stable gas supply, reducing the risk of cylinder tipping, and improving the operational safety of the device.

[0014] 2. In this device, the temperature sensor, cavity and heating element are designed to precisely control the temperature inside the chamber, providing the optimal temperature environment for gas mixing, avoiding deviations in the mixed gas concentration caused by ambient temperature fluctuations, and ensuring that the output mixed gas meets the requirements for high-precision industrial use.

[0015] 3. In this device, the arrangement of the support, fan blades and second motor can accelerate the convection and diffusion of argon and oxygen, shorten the mixing time, solve the problem of poor uniformity of natural mixing, and thus improve the preparation and mixing efficiency of the mixed gas. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a continuous filling device for mixed gas in one embodiment of the present invention; Figure 2 This is a schematic cross-sectional view of the present invention. Figure 3 This is a side view of the structure of this utility model; Figure 4 This is a side view sectional structural diagram of the present invention; Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0018] In the diagram: 1. Cabinet; 2. Mixing compartment; 3. Partition; 4. First slide rail; 5. Rotating shaft; 6. First motor; 7. Second slide rail; 8. Stabilizing bar; 9. First V-shaped limiting plate; 10. Second V-shaped limiting plate; 11. Fitting groove; 12. Tank; 13. Air injection pipe; 14. First connecting pipe; 15. First solenoid valve; 16. Exhaust pipe; 17. Second solenoid valve; 18. Compressor body; 19. Second connecting pipe; 20. Third solenoid valve; 21. Third connecting pipe; 22. Fourth solenoid valve; 23. Bracket; 24. Fan blade; 25. Second motor; 26. Temperature sensor; 27. Cavity; 28. Heating element; 29. ​​Support leg; 30. Support pad; 31. Cabinet door; 32. Handle; 33. PLC controller. Detailed Implementation The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0019] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0020] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] like Figures 1-5 As shown, it illustrates a continuous filling device for mixed gas according to an embodiment of the present invention, comprising: a cabinet 1, a mixing chamber 2 fixedly installed in the middle of the cabinet 1, an exhaust pipe 16 fixedly installed on the outer left side of the cabinet 1, the exhaust pipe 16 being connected to the mixing chamber 2, a second solenoid valve 17 fixedly installed on the exhaust pipe 16, and a partition 3 fixedly installed in the cabinet 1 below the mixing chamber 2, the cabinet 1 being divided into two sets of gas injection chambers at the bottom of the mixing chamber 2 by the partition 3; The limiting mechanism is installed inside the cabinet 1. The compressor body 18 is fixedly installed at the top of the mixing chamber 2. The second connecting pipe 19 is fixedly installed at the input end of the compressor body 18. The other end of the second connecting pipe 19 is sealed and connected to the mixing chamber 2. The third solenoid valve 20 is fixedly installed on the second connecting pipe 19. The third connecting pipe 21 is fixedly installed at the output end of the compressor body 18. The other end of the third connecting pipe 21 extends to the outside of the cabinet 1 and is fixedly installed with a fourth solenoid valve 22.

[0025] For example, such as Figure 5 As shown, the limiting mechanism includes a first slide 4, a rotating shaft 5, a first motor 6, a second slide 7, and a stabilizing rod 8. The first slide 4 is horizontally opened at the middle position of the bottom inside the cabinet 1. The rotating shaft 5 is rotatably installed inside the first slide 4. The first motor 6 is fixedly installed at the bottom of the right outer wall of the cabinet 1. The output end of the first motor 6 is fixedly connected to the rotating shaft 5. The second slide 7 is horizontally opened at both the front and rear ends of the first slide 4 inside the cabinet 1. The stabilizing rod 8 is fixedly installed inside each set of second slide 7.

[0026] For example, such as Figure 5As shown, the limiting mechanism also includes a first V-shaped limiting plate 9, a second V-shaped limiting plate 10, and a fitting groove 11. Each set of gas injection chambers is provided with a first V-shaped limiting plate 9 and a second V-shaped limiting plate 10. The first V-shaped limiting plates 9 and the second V-shaped limiting plates 10 inside the two sets of gas injection chambers are symmetrically arranged. Each set of gas injection chambers has a rotating shaft 5 with symmetrically opened threaded sections with opposite thread directions. Each set of first V-shaped limiting plates 9 and each set of second V-shaped limiting plates 10 are threadedly connected to the threaded sections at corresponding positions. Each set of first V-shaped limiting plates 9 and each set of second V-shaped limiting plates 10 are slidably connected to the stabilizing rod 8 at corresponding positions. Each set of first V-shaped limiting plates 9 is provided with a fitting groove 11 that matches the second V-shaped limiting plate 10.

[0027] The limiting mechanism allows for flexible clamping of argon and oxygen cylinders of different specifications, preventing cylinder 12 from shifting or shaking, ensuring stable gas supply, reducing the risk of cylinder 12 tipping over, and improving the safety of device operation. In particular, the presence of the fitting groove 11 allows the first V-shaped limiting plate 9 and the second V-shaped limiting plate 10 to better clamp the cylinder 12.

[0028] For example, such as Figure 2 As shown, each group of gas injection chambers is equipped with a tank 12 inside, and a gas injection pipe 13 is fixedly installed at the top of each group of tanks 12. A first connecting pipe 14 is installed through the top of each group of gas injection chambers. Each group of first connecting pipes 14 is sealed and connected to the gas injection pipe 13 at the corresponding position. A first solenoid valve 15 is fixedly installed on each group of first connecting pipes 14.

[0029] For example, such as Figure 1 As shown, a cabinet door 31 is rotatably installed at the left edge of the front end of the cabinet 1. A handle 32 is fixedly installed on the outer wall of the front end of the cabinet door 31. A PLC controller 33 is fixedly installed on the outer wall of the left side of the cabinet 1. Support legs 29 are fixedly installed at the four corners of the bottom of the cabinet 1. A support pad 30 is fixedly installed at the bottom of each set of support legs 29.

[0030] In some examples, when using this device, the operator first places the argon-filled and oxygen-filled tanks 12 into the gas injection chambers, respectively. Then, the operator can activate the first motor 6, which drives the first V-shaped limiting plate 9 and the second V-shaped limiting plate 10 to move via the rotating shaft 5. Since each set of rotating shafts 5 inside the gas injection chambers has symmetrically arranged threaded segments with opposite directions of rotation, and each set of first V-shaped limiting plates 9 and each set of second V-shaped limiting plates 10 are threadedly connected to the corresponding threaded segments, the first motor 6 can drive the first V-shaped limiting plates 9 and the second V-shaped limiting plates 10 to clamp and limit the tanks. This design allows for flexible clamping of argon and oxygen cylinders of different specifications, preventing cylinder 12 from shifting or shaking, ensuring stable gas supply, reducing the risk of cylinder 12 tipping over, and improving the safety of device operation. After the cylinder 12 is placed, the operator can connect the gas injection pipe 13 to the first connecting pipe 14. Then, the opening and closing of the two sets of first solenoid valves 15 can control whether the gas participates in the mixing and the amount injected, enabling precise gas mixing. After the gas is mixed, the operator can start the compressor body 18 while opening the third solenoid valve 20 and the fourth solenoid valve 22, thus facilitating filling.

[0031] like Figure 4 As shown, it illustrates a continuous filling device for mixed gas in another embodiment of the present invention. A temperature sensor 26 is fixedly installed at the bottom of the mixing chamber 2. A cavity 27 is opened inside the outer wall of the rear end of the mixing chamber 2. Several sets of electric heating tubes 28 are fixedly installed in an array at equal intervals inside the cavity 27.

[0032] The temperature sensor 26 and the heating element 28 enable precise control of the temperature inside the mixing chamber 2, providing the optimal temperature environment for gas mixing and preventing deviations in the concentration of the mixed gas due to fluctuations in ambient temperature.

[0033] For example, such as Figure 2 As shown, a bracket 23 is fixedly installed on the right side of the mixing chamber 2, and a fan blade 24 is rotatably installed on the bracket 23. A second motor 25 is fixedly installed on the outer wall of the right side of the cabinet 1. A drive shaft is fixedly installed at the output end of the second motor 25. The other end of the drive shaft is fixedly connected to the fan blade 24. A sealed bearing is installed at the rotatable connection between the drive shaft and the outer wall of the mixing chamber 2. In some examples, after the argon and oxygen involved in the mixing are injected into the mixing chamber 2, the operator can activate the electric heating tube 28 based on the temperature reading transmitted from the temperature sensor 26 to the PLC controller 33. This allows for precise temperature control within the mixing chamber 2, providing an optimal temperature environment for gas mixing, avoiding concentration deviations in the mixed gas caused by ambient temperature fluctuations, and ensuring that the output mixed gas meets the requirements for high-precision industrial applications. In addition, the operator can also activate the second motor 25 at the same time as activating the electric heating tube 28, which drives the fan blades 24 to rotate via the drive shaft. This accelerates the convection and diffusion of argon and oxygen, shortens the mixing time, solves the problem of poor uniformity in natural mixing, and thus improves the preparation and mixing efficiency of the mixed gas.

[0034] It should be noted that the PLC controller 33 is an S7-200SMART, used to control the operating status and other parameters of various electrically driven components in the device. The first motor 6 and the second motor 25 are both MELSERVO-J4. The first solenoid valve 15, the second solenoid valve 17, the third solenoid valve 20 and the fourth solenoid valve 22 are all 4V210-08. The temperature sensor 26 is an SHT31. All of the above electrical components are existing devices or equipment, or devices or equipment that can be implemented with existing technology. Their power supply, specific composition and principle are clear to those skilled in the art, so they will not be described in detail.

[0035] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A continuous filling device for mixed gases, characterized in that, include: Cabinet (1), a mixing chamber (2) is fixedly installed in the middle of the cabinet (1), an exhaust pipe (16) is fixedly installed on the left outer wall of the cabinet (1), the exhaust pipe (16) is connected to the mixing chamber (2), a second solenoid valve (17) is fixedly installed on the exhaust pipe (16), a partition (3) is fixedly installed in the cabinet (1) below the mixing chamber (2), and the cabinet (1) is divided into two groups of air injection chambers at the bottom of the mixing chamber (2) by the partition (3); A limiting mechanism is installed inside the cabinet (1). A compressor body (18) is fixedly installed at the top of the mixing chamber (2). A second connecting pipe (19) is fixedly installed at the input end of the compressor body (18). The other end of the second connecting pipe (19) is sealed and connected to the mixing chamber (2). A third solenoid valve (20) is fixedly installed on the second connecting pipe (19). A third connecting pipe (21) is fixedly installed at the output end of the compressor body (18). The other end of the third connecting pipe (21) extends to the outside of the cabinet (1) and is fixedly installed with a fourth solenoid valve (22).

2. The continuous filling device for mixed gas according to claim 1, characterized in that, The limiting mechanism includes a first slide groove (4), a rotating shaft (5), a first motor (6), a second slide groove (7), and a stabilizing rod (8). The first slide groove (4) is horizontally opened at the middle position of the bottom of the cabinet (1). The rotating shaft (5) is rotatably installed inside the first slide groove (4). The first motor (6) is fixedly installed at the bottom of the right outer wall of the cabinet (1). The output end of the first motor (6) is fixedly connected to the rotating shaft (5). The second slide groove (7) is horizontally opened at both the front and rear ends of the first slide groove (4) inside the cabinet (1). A stabilizing rod (8) is fixedly installed inside each set of second slide grooves (7).

3. The continuous filling device for mixed gas according to claim 2, characterized in that, The limiting mechanism also includes a first V-shaped limiting plate (9), a second V-shaped limiting plate (10), and a fitting groove (11). Each set of the gas injection chambers is provided with a first V-shaped limiting plate (9) and a second V-shaped limiting plate (10). The first V-shaped limiting plate (9) and the second V-shaped limiting plate (10) inside the two sets of gas injection chambers are symmetrically arranged. The rotating shaft (5) inside each set of the gas injection chambers is symmetrically provided with threaded sections with opposite thread directions. Each set of the first V-shaped limiting plate (9) and each set of the second V-shaped limiting plate (10) are threadedly connected to the threaded sections at the corresponding positions. Each set of the first V-shaped limiting plate (9) and each set of the second V-shaped limiting plate (10) are slidably connected to the stabilizing rod (8) at the corresponding positions. Each set of the first V-shaped limiting plate (9) is provided with a fitting groove (11) that matches the second V-shaped limiting plate (10).

4. The continuous filling device for mixed gas according to claim 1, characterized in that, Each group of gas injection chambers is equipped with a tank (12) inside. Each group of tanks (12) is fixedly installed with a gas injection pipe (13) at the top. Each group of gas injection chambers is equipped with a first connecting pipe (14) through the top. Each group of first connecting pipes (14) is sealed to the gas injection pipe (13) at the corresponding position. Each group of first connecting pipes (14) is fixedly installed with a first solenoid valve (15).

5. A continuous filling device for mixed gas according to claim 1, characterized in that, A temperature sensor (26) is fixedly installed at the bottom of the mixing chamber (2). A cavity (27) is opened inside the outer wall of the rear end of the mixing chamber (2). Several sets of electric heating tubes (28) are fixedly installed in an equidistant array inside the cavity (27).

6. The continuous filling device for mixed gas according to claim 1, characterized in that, A bracket (23) is fixedly installed on the right side of the mixing chamber (2), and a fan blade (24) is rotatably installed on the bracket (23). A second motor (25) is fixedly installed on the outer wall of the right side of the cabinet (1). A drive shaft is fixedly installed at the output end of the second motor (25). The other end of the drive shaft is fixedly connected to the fan blade (24). A sealed bearing is installed at the rotatable connection between the drive shaft and the outer wall of the mixing chamber (2).

7. A continuous filling device for mixed gas according to claim 1, characterized in that, A cabinet door (31) is rotatably installed at the left edge of the front end of the cabinet (1). A handle (32) is fixedly installed on the outer wall of the front end of the cabinet door (31). A PLC controller (33) is fixedly installed on the outer wall of the left side of the cabinet (1).

8. A continuous filling device for mixed gas according to claim 1, characterized in that, Support legs (29) are fixedly installed at the four corners of the bottom of the cabinet (1), and support pads (30) are fixedly installed at the bottom of each set of support legs (29).

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