Gas proportioning, mixing and filtering integrated device

Abstract

This utility model relates to the field of proportioning device technology and discloses an integrated gas proportioning, mixing, and filtering device, including a proportioning cabinet and threaded pipe fittings. The proportioning cabinet has a mixing chamber inside. A mixing box is fixedly installed on the inner front wall of the mixing chamber near the upper side. An air inlet pipe is connected and fixedly installed on the lower right side of the mixing box, and an air inlet pipe is connected and fixedly installed on the upper left side of the mixing box. A rotating rod is rotatably installed in the middle of the inner front wall of the mixing box. A vortex fan blade is fixedly sleeved on the rotating rod near the front side. An air outlet pipe is connected and fixedly installed in the middle of the lower side of the mixing chamber. A metal double cylinder is slidably installed inside the air outlet pipe. This device actively mixes different gases by rotating the vortex fan blade. Combined with staggered baffles to change the airflow direction, air vents to increase airflow complexity, and the convective mixing effect generated by the rotating mixing fan blades colliding with the gas, it achieves rapid and uniform mixing.

Description

Technical Field

[0001] This utility model relates to the field of proportioning device technology, and in particular to an integrated device for gas proportioning, mixing and filtration. Background Technology

[0002] In industries such as chemical and electronics manufacturing, precise gas proportioning and purification are crucial to production quality. Fully automatic gas mixing cabinets are widely used, which achieve proportional gas mixing through automated control and mass flow controllers.

[0003] However, traditional fully automatic gas mixing cabinets have certain limitations. First, they are limited in function, only capable of proportioning and preliminary mixing. Purification requires external filtration equipment, resulting in large footprint, high cost, and increased risk of leakage. Furthermore, the replacement of filter elements is cumbersome and cannot meet the comprehensive filtration needs of multiple types of impurities. Second, the mixing effect is poor. Relying on traditional methods makes it difficult to meet the needs of high-precision scenarios, such as semiconductor manufacturing and the medical field, where uneven gas mixing can affect product yield and treatment effectiveness. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an integrated gas proportioning, mixing, and filtration device, which has the advantages of faster and more uniform mixing, and can also directly and efficiently filter the mixed gas, thus solving some of the problems mentioned in the background technology.

[0005] This utility model provides the following technical solution: an integrated gas proportioning, mixing, and filtering device, comprising a proportioning cabinet and threaded pipe fittings. The proportioning cabinet has a mixing chamber inside. A mixing box is fixedly installed on the inner front wall of the mixing chamber near the upper side. An air inlet pipe is connected and fixedly installed on the lower right side of the mixing box. An air inlet pipe is connected and fixedly installed on the upper left side of the mixing box. A rotating rod is rotatably installed in the middle of the inner front wall of the mixing box. A vortex fan blade is fixedly sleeved on the rotating rod near the front side. An air outlet pipe is connected and fixedly installed in the middle of the lower side of the mixing chamber. A metal double cylinder is slidably installed inside the air outlet pipe. An internal thread groove is provided on the inner wall of the air outlet pipe near the pipe opening. The threaded pipe fittings are threadedly connected to the air outlet pipe through the internal thread groove.

[0006] Furthermore, both the first and second air intake pipes have a reduced diameter at their openings inside the mixing chamber. The reduced diameter on the first air intake pipe is located in the lower middle position of the vortex fan blade, while the reduced diameter on the second air intake pipe is located in the upper middle position of the vortex fan blade, thereby increasing the gas flow rate.

[0007] Furthermore, two sets of staggered baffles are fixedly installed on the left and right inner walls of the mixing chamber. Each baffle has evenly distributed vent holes to improve the mixing effect of the gas.

[0008] Furthermore, a mixing fan blade is fixedly sleeved on the rotating rod near the rear side, and a support plate is fixedly connected to the middle of the rear end of the mixing box. The rear end of the rotating rod is rotatably connected to the support plate, and the support plate provides support for the rotating rod. At the same time, the opening design will not affect the air outlet of the mixing box.

[0009] Furthermore, filter elements are installed inside both tubes of the metal twin cylinder. The front end of the metal twin cylinder abuts against the rolled edge of the front end of the air outlet pipe, and the rear end of the metal twin cylinder is tightly abutted against the threaded pipe fitting. Rubber pads are installed inside the air outlet pipe at both the front and rear ends of the metal twin cylinder. The rubber pads can improve the stability of the threaded pipe fitting fixing the metal twin cylinder.

[0010] Furthermore, the threaded pipe fitting has two sets of symmetrical insertion holes at its rear end, and the insertion holes are equipped with matching and detachable disassembly parts, that is, the disassembly parts are only used when the filter element is replaced.

[0011] The advantages of this utility model are as follows:

[0012] 1. By increasing the gas flow rate, using the rotation of the vortex fan blades to drive gas mixing, and generating convection through the collision of the mixing fan blades with the gas, the flow stratification phenomenon is broken, enabling different gases on both sides to mix quickly and evenly. This greatly improves the efficiency and quality of gas mixing and ensures the performance of the mixed gas in subsequent applications.

[0013] 2. A convenient filter element replacement structure is designed. Simply insert the disassembly part into the air outlet pipe and insert it into the socket, then rotate it to drive the threaded pipe to rotate, thereby quickly releasing the restriction on the metal double cylinder. The metal double cylinder and filter element can then be removed for replacement or maintenance. The installation process is the same, which is simple and quick. No additional filtration equipment is required, reducing the space occupied and improving ease of use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the mixing chamber of this utility model;

[0017] Figure 4 This is a schematic diagram of the internal structure of the mixing box of this utility model;

[0018] Figure 5 For the present utility model Figure 3 A magnified structural diagram of point A in the middle.

[0019] In the diagram: 1. Proportioning cabinet; 2. Inlet pipe one; 3. Inlet pipe two; 4. Mixing chamber; 5. Mixing box; 6. Reduction port; 7. Rotating rod; 8. Vortex fan blade; 9. Baffle plate; 10. Vent hole; 11. Mixing fan blade; 12. Support plate; 13. Exhaust pipe; 14. Metal double cylinder; 15. Filter element; 16. Internal thread groove; 17. Threaded pipe fitting; 18. Rubber pad; 19. Insertion hole; 20. Disassembly / assembly parts. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-4The integrated gas proportioning, mixing, and filtering device includes a proportioning cabinet 1 and threaded pipe fittings 17. The proportioning cabinet 1 contains a mixing chamber 4. A mixing box 5 is fixedly installed on the inner front wall of the mixing chamber 4 near the upper side. An air inlet pipe 2 is connected and fixedly installed on the lower right side of the mixing box 5, and an air inlet pipe 3 is connected and fixedly installed on the upper left side of the mixing box 5. A rotating rod 7 is rotatably installed in the middle of the inner front wall of the mixing box 5. A vortex fan blade 8 is fixedly sleeved on the rotating rod 7 near the front side. Both air inlet pipes 2 and 3 have reduced diameter inlets at their openings inside the mixing box 5. 6. The reduced diameter inlet 6 on intake pipe 1 2 is located at the lower middle position of the vortex fan blade 8, and the reduced diameter inlet 6 on intake pipe 2 3 is located at the upper middle position of the vortex fan blade 8. Two sets of staggered baffles 9 are fixedly installed on the left and right inner walls of the mixing box 5. Each baffle 9 is provided with evenly distributed air vents 10. A mixing fan blade 11 is fixedly sleeved on the rotating rod 7 near the rear side. A support plate 12 is fixedly connected to the middle of the rear end of the mixing box 5. The rear end of the rotating rod 7 is rotatably connected to the support plate 12. It is worth mentioning that the air supply that needs to be mixed is obtained through intake pipe 1 2 and intake pipe 2 3. After the equipment is connected, the flow velocity of the transported gas inside the straight inlet pipes 2 and 3 is increased by adjusting the output pressure of the gas supply equipment or adding a booster pump. The flow velocity is further increased when passing through the narrowing port 6. Furthermore, the transported gas in inlet pipe 2 will surge onto the lower part of the vortex fan blade 8, while the transported gas in inlet pipe 3 will surge onto the upper part of the vortex fan blade 8. This utilizes the wind force of the transported gas to drive the vortex fan blade 8 to rotate counterclockwise (rear view). The rotation of the vortex fan blade 8 not only provides a buffer... The effect of the impeller is to actively drive the different gases on both sides to mix better. When the surging gas passes through the staggered baffles 9, the airflow direction is forced to change. The design of the vents 10 can increase the complexity of the airflow when it passes through, thereby improving the gas mixing effect. Furthermore, the rotation of the vortex fan blades 8 will drive the rotating rod 7 to rotate the mixing fan blades 11. The rotation of the mixing fan blades 11 and the collision with the gas will generate a strong convective mixing effect. Combined with the baffles 9, the flow stratification phenomenon is broken, and rapid and uniform mixing is achieved, thereby improving the use effect of the mixed gas.

[0022] Please see Figures 2-5Inside the mixing chamber 4, near the lower center, an exhaust pipe 13 is connected and fixedly installed. A metal double cylinder 14 is slidably installed inside the exhaust pipe 13. The inner wall of the exhaust pipe 13 has an internal threaded groove 16 near the pipe opening. A threaded fitting 17 is threadedly connected to the exhaust pipe 13 through the internal threaded groove 16. Filter elements 15 are installed inside both cylinders of the metal double cylinder 14. The front end of the metal double cylinder 14 abuts against the rolled edge of the front end of the exhaust pipe 13, and the rear end of the metal double cylinder 14 is tightly abutted against the threaded fitting 17. Rubber gaskets 18 are installed at both ends of the metal double cylinder 14 inside the exhaust pipe 13. Two sets of insertion holes 19 are symmetrically arranged at the rear end of the threaded fitting 17. The insertion holes 19 are equipped with matching and detachable disassembly parts 20. During the process of extracting the mixed gas after connecting the exhaust pipe 13 to a vacuum pump or other extraction equipment... The mixed gas passes through two sets of filter elements 15 inside the outlet pipe 13. The filter elements 15 can use a combination of ceramic membrane and activated carbon or molecular sieve to remove fine particles, oil mist, harmful gases and water vapor from the gas. When the filter element 15 needs to be replaced, the disassembly and assembly part 20 is inserted into the outlet pipe 13 and inserted into the insertion hole 19. Then, by rotating the disassembly and assembly part 20, the threaded pipe fitting 17 can be rotated, thereby removing the threaded pipe fitting 17 from the outlet pipe 13 and releasing the limiting effect on the metal double cylinder 14. Then, the metal double cylinder 14 can be directly removed from the outlet pipe 13 for replacement or maintenance. The installation is the same. The metal double cylinder 14 is fixed by tightening the threaded pipe fitting 17. The operation is simple and quick, without the need to connect additional filtration equipment, reducing the occupied area and improving the convenience of use.

[0023] Working Principle: It is worth mentioning that after connecting the gas supply equipment requiring mixing via intake pipes 2 and 3, the flow velocity of the transported gas inside the straight intake pipes 2 and 3 is increased by adjusting the output pressure of the gas supply equipment or by adding a booster pump. The flow velocity is further increased when passing through the narrowing port 6. Furthermore, the transported gas in intake pipe 2 is ejected onto the lower part of the vortex fan blade 8, while the transported gas in intake pipe 3 is ejected onto the upper part of the vortex fan blade 8. This utilizes the airflow of the transported gas to drive the vortex fan blade 8 to rotate counterclockwise. The rotation of the vortex fan blade 8 drives the rotating rod 7 to rotate the mixing fan blade 11. The rotation of the mixing fan blade 11 and its collision with the gas generate strong convective mixing. The effect, combined with the baffle 9, breaks the flow stratification phenomenon and achieves rapid and uniform mixing. When the gas outlet pipe 13 is connected to the vacuum pump or other gas extraction equipment, the mixed gas will pass through two sets of filter elements 15 inside the gas outlet pipe 13 to achieve the filtering effect. When the filter element 15 needs to be replaced, the disassembly and assembly part 20 is inserted into the gas outlet pipe 13 and inserted into the insertion hole 19. Then, by rotating the disassembly and assembly part 20, the threaded pipe fitting 17 can be rotated, so that the threaded pipe fitting 17 can be removed from the gas outlet pipe 13 to release the limiting effect on the metal double cylinder 14. Then, the metal double cylinder 14 can be directly removed from the inside of the gas outlet pipe 13 for replacement or maintenance. The installation is the same. The metal double cylinder 14 is fixed by tightening the threaded pipe fitting 17.

Claims

1. A gas proportion mixing filtering integrated device, comprising a proportioning cabinet (1) and a threaded pipe fitting (17), characterized in that: The mixing cabinet (1) is provided with a mixing chamber (4) inside. A mixing box (5) is fixedly installed on the inner front wall of the mixing chamber (4) near the upper side. An air inlet pipe (2) is connected and fixedly installed on the lower right side of the mixing box (5). An air inlet pipe (3) is connected and fixedly installed on the upper left side of the mixing box (5). A rotating rod (7) is rotatably installed in the middle of the inner front wall of the mixing box (5). A vortex fan blade (8) is fixedly sleeved on the rotating rod (7) near the front side. An air outlet pipe (13) is connected and fixedly installed in the middle of the lower side of the mixing chamber (4). A metal double cylinder (14) is slidably installed in the air outlet pipe (13). An internal thread groove (16) is provided on the inner wall of the air outlet pipe (13) near the pipe opening. The threaded pipe fitting (17) is threadedly connected to the air outlet pipe (13) through the internal thread groove (16).

2. The integrated gas proportioning, mixing, and filtering device according to claim 1, characterized in that: Both the first intake pipe (2) and the second intake pipe (3) have a reduced diameter port (6) at the pipe opening inside the mixing box (5). The reduced diameter port (6) on the first intake pipe (2) is located in the lower middle position of the vortex fan blade (8), and the reduced diameter port (6) on the second intake pipe (3) is located in the upper middle position of the vortex fan blade (8).

3. The integrated gas proportioning, mixing, and filtering device according to claim 1, characterized in that: Two sets of staggered baffles (9) are fixedly installed on the left and right inner walls of the mixing box (5), and each baffle (9) is provided with evenly distributed vent holes (10).

4. The integrated gas proportioning, mixing, and filtering device according to claim 1, characterized in that: A mixing fan blade (11) is fixedly sleeved on the rotating rod (7) near the rear side, and a support plate (12) is fixedly connected to the middle of the rear end of the mixing box (5). The rear end of the rotating rod (7) is rotatably connected to the support plate (12).

5. The integrated gas proportioning, mixing, and filtering device according to claim 1, characterized in that: The two tubes of the metal double cylinder (14) are each equipped with a filter element (15). The front end of the metal double cylinder (14) abuts against the rolled edge of the front end of the air outlet pipe (13). The rear end of the metal double cylinder (14) is tightly abutted against the threaded pipe fitting (17). Rubber pads (18) are installed at both the front and rear ends of the metal double cylinder (14) inside the air outlet pipe (13).

6. The integrated gas proportioning, mixing, and filtering device according to claim 5, characterized in that: The threaded pipe fitting (17) has two sets of insertion holes (19) symmetrically arranged at its rear end, and the insertion holes (19) are provided with matching and detachable disassembly parts (20).

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