Flow regulation type gas supply device

Abstract

The utility model discloses a flow regulation type gas supply device, which belongs to the technical field of chemical equipment and comprises a cabinet. A main pipe is fixedly mounted at the top of the cabinet, a plurality of branch pipes are fixedly mounted on the bottom side of the main pipe, a flow valve is arranged on each branch pipe, and a flow meter is arranged at the discharging end of the main pipe; a bracket is fixedly mounted at the bottom in the cabinet; a plurality of self-calibration fixing mechanisms are arranged on the bracket; and a plurality of anti-leakage automatic connecting mechanisms are arranged at the inner top of the cabinet. The gas cylinders are limited and fixed through the self-calibration fixing mechanisms, the leakage-proof automatic connecting mechanisms are started to be connected with the gas cylinders, the gas cylinders can supply fluorine to the main pipe through the branch pipes, and the gas cylinders can be connected with the main pipe in parallel through the leakage-proof automatic connecting mechanisms to achieve synchronous supply of fluorine. The fluorine flow of a single gas cylinder is controlled through a flow valve; when fluorine of a single gas cylinder is completely consumed and needs to be replaced, the reading of the flowmeter is kept stable by adjusting the fluorine flow of other gas cylinders.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, specifically to a flow-regulating gas supply device. Background Technology

[0002] Germanium tetrafluoride is typically synthesized by the direct reaction of metallic germanium with fluorine gas, which has the advantages of high efficiency and directness.

[0003] The preparation of germanium tetrafluoride requires a continuous and stable supply of fluorine gas. The conventional supply method is gas cylinders or tanks. However, the consumption of fluorine gas is relatively large, and the fluorine cylinders or tanks need to be replaced frequently. The replacement of fluorine cylinders and tanks requires a high level of manual labor. Furthermore, fluorine gas is corrosive, and if fluorine gas leaks due to poor sealing, it will endanger the health of people in the surrounding area.

[0004] Based on this, the present invention designs a flow-regulating gas supply device to solve the above problems. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a flow-regulating gas supply device.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A flow-regulating gas supply device, including a cabinet;

[0008] The top of the cabinet is fixedly installed with a main pipe, and multiple branch pipes are fixedly installed on the bottom side of the main pipe. Each branch pipe is equipped with a flow valve, and the discharge end of the main pipe is equipped with a flow meter.

[0009] A bracket is fixedly installed at the bottom inside the cabinet. Multiple rollers are rotatably installed on the inner side of the bracket via bearings. The rollers are evenly distributed along the front-to-back direction.

[0010] The bracket is equipped with multiple self-calibrating fixing mechanisms along the left and right directions, which have position calibration limits for the gas cylinder.

[0011] The top of the cabinet is equipped with multiple leak-proof automatic connection mechanisms that correspond one-to-one with the self-calibration fixing mechanism and are used to connect the gas cylinder and the branch pipe.

[0012] Furthermore, the self-calibration fixing mechanism includes a positioning plate, a limiting pressure plate, and an avoidance moving component. The positioning plate is fixedly connected to the inner front side wall of the cabinet. The avoidance moving component is installed between the bracket and the inner bottom of the cabinet. The moving ends of multiple avoidance moving components are fixedly connected to the corresponding limiting pressure plates. The avoidance moving component is used to drive the limiting pressure plate to extend upward from the bottom of the bracket and then press and fix the gas cylinder towards the positioning plate.

[0013] Furthermore, the positioning plate has a U-shaped cross-section that opens outwards on both sides, and the limiting pressure plate has a V-shaped cross-section.

[0014] Furthermore, the avoidance-type moving assembly includes a first push cylinder, a limiting block, a horizontal bar, a vertical bar, a sliding column, and a vertical plate. The first push cylinder is fixedly installed on the bottom of the cabinet, and the two vertical plates are fixedly installed on the bottom wall of the cabinet at intervals. The output end of the first push cylinder slides through the bottom of the cabinet and is fixedly connected to the bottom of the limiting block. The end of the horizontal bar passes through the limiting block and is slidably connected. The front end of the horizontal bar is fixedly connected to the bottom of the vertical bar, and the top of the vertical bar is fixedly connected to the rear side wall of the limiting pressure plate. A sliding column is fixedly installed at the rear end of the horizontal bar. Two sliding grooves are opened on the two vertical plates, which are respectively slidably connected to the two ends of the sliding column. The rear end of the horizontal bar can slide between the two vertical plates, and the rear side wall of the limiting block slides in contact with the front side wall of the two vertical plates.

[0015] Furthermore, the sliding groove consists of a vertical groove at the bottom and an inclined groove at the top.

[0016] Furthermore, the leak-proof automatic connection mechanism includes a double static sealing connection assembly and a sealing absorption assembly installed on the top of the cabinet. The double static sealing connection assembly is used to connect the gas cylinder and the branch pipe and prevent gas from leaking outward, while the sealing absorption assembly is used to absorb and discharge the leaked gas.

[0017] Furthermore, the dual static seal connection assembly includes a connecting hose, a shield, a second push cylinder, and a quick-connect plug. The second push cylinder is fixedly installed on the top of the cabinet. The output end of the second push cylinder extends through into the cabinet and is fixedly connected to the shield. A quick-connect plug for connecting to the gas cylinder is fixedly installed inside the shield. A connecting hose is fixedly connected to the top of the quick-connect plug. The top of the connecting hose passes through the top of the shield and the top of the cabinet and communicates with the bottom of the branch pipe.

[0018] Furthermore, the sealing and absorption assembly includes an air inlet pipe, an air outlet pipe, and an absorption box. The absorption box is fixedly installed on the top of the cabinet, and an exhaust pipe is provided on the top of the absorption box. The side wall of the shield is fixedly connected to the air inlet pipe and the air outlet pipe. The other end of the air outlet pipe is connected to the absorption box, and the other end of the air inlet pipe extends through to the front exterior of the cabinet.

[0019] Compared with the prior art, the advantages of this utility model are as follows:

[0020] 1. In this utility model, the operator can place the gas cylinder on the roller and push it into the cabinet. A self-calibrating fixing mechanism limits and fixes the gas cylinder to the set position. Then, the anti-leakage automatic connection mechanism is activated to connect with the gas cylinder, so that the gas cylinder can supply fluorine gas to the main pipe through the branch pipe. Multiple gas cylinders can be connected in parallel with the main pipe through the anti-leakage automatic connection mechanism to achieve synchronous supply of fluorine gas. The flow rate of fluorine gas in a single gas cylinder is controlled by a flow valve. When the fluorine gas in a single gas cylinder is completely consumed and needs to be replaced, the flow rate of other gas cylinders is adjusted to keep the flow meter reading stable, so as to meet the continuous and stable supply of fluorine gas required in the preparation of germanium tetrafluoride.

[0021] 2. In this utility model, the positioning plate and the limiting pressure plate work together to allow the gas cylinder to be pushed to the set position and fixed within a certain range on the roller, thus having an automatic calibration function for the gas cylinder. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This utility model provides a three-dimensional flow-regulating gas supply device. Figure 1 ;

[0024] Figure 2 This is a front view of a flow-regulating gas supply device according to the present invention;

[0025] Figure 3 This utility model provides a three-dimensional flow-regulating gas supply device. Figure 2 ;

[0026] Figure 4 This is a three-dimensional structural view of the leak-proof automatic connection mechanism of this utility model;

[0027] Figure 5 for Figure 3 Enlarged view of point A in the middle.

[0028] The labels in the diagram represent:

[0029] 1. Cabinet; 2. Bracket; 3. Self-calibrating fixing mechanism; 31. Positioning plate; 32. Limiting pressure plate; 33. First push cylinder; 34. Limiting block; 35. Horizontal bar; 36. Vertical bar; 37. Sliding column; 38. Sliding groove; 39. Vertical plate; 4. Leak-proof automatic connection mechanism; 41. Connecting hose; 42. Shielding cover; 43. Second push cylinder; 44. Quick plug; 45. Air inlet pipe; 46. Air outlet pipe; 47. Absorption box; 5. Main pipe; 6. Flow meter; 7. Branch pipe; 8. Flow valve; 9. Idler roller. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0031] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0032] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-5 A flow-regulating gas supply device includes a cabinet 1; a main pipe 5 is fixedly installed on the top of the cabinet 1, and multiple branch pipes 7 are fixedly installed on the bottom side of the main pipe 5. Each branch pipe 7 is equipped with a flow valve 8, and a flow meter 6 is installed at the discharge end of the main pipe 5; a bracket 2 is fixedly installed at the bottom inside the cabinet 1, and multiple rollers 9 are rotatably installed on the inner side of the bracket 2 via bearings. The multiple rollers 9 are evenly distributed along the front-back direction; multiple self-calibrating fixing mechanisms 3 with position calibration limits for gas cylinders are arranged on the bracket 2 along the left-right direction; multiple leak-proof automatic connection mechanisms 4 are arranged on the inner top of the cabinet 1, corresponding one-to-one with the self-calibrating fixing mechanisms 3 and used to connect the gas cylinders and branch pipes 7.

[0033] In this invention, the operator can place the gas cylinder on the roller 9 and push it into the cabinet 1. A self-calibrating fixing mechanism 3 limits and fixes the gas cylinder to the set position. Then, the anti-leakage automatic connection mechanism 4 is activated to connect with the gas cylinder, so that the gas cylinder can supply fluorine gas to the main pipe 5 through the branch pipe 7. Multiple gas cylinders can be connected in parallel with the main pipe 5 through the anti-leakage automatic connection mechanism 4 to achieve synchronous supply of fluorine gas. The flow rate of fluorine gas in a single gas cylinder is controlled by the flow valve 8. When the fluorine gas in a single gas cylinder is completely consumed and needs to be replaced, the reading of the flow meter 6 is kept stable by adjusting the fluorine gas flow rate of other gas cylinders, so as to meet the continuous and stable supply of fluorine gas required in the preparation of germanium tetrafluoride.

[0034] In some embodiments, please refer to Figure 3 and Figure 5 The self-calibration fixing mechanism 3 includes a positioning plate 31, a limiting pressure plate 32, and a clearance-type moving component. The positioning plate 31 is fixedly connected to the inner front side wall of the cabinet 1. Multiple clearance-type moving components are installed between the bracket 2 and the inner bottom of the cabinet 1. The moving end of the clearance-type moving component is fixedly connected to the corresponding limiting pressure plate 32. The clearance-type moving component is used to drive the limiting pressure plate 32 to extend upward from the bottom of the bracket 2 and then press and fix the gas cylinder towards the positioning plate 31.

[0035] Specifically, the cross-section of the positioning plate 31 is set as a U-shape with both sides opening outwards, and the cross-section of the limiting pressure plate 32 is set as a V-shape. The positioning plate 31 and the limiting pressure plate 32 squeeze and cooperate with each other to clamp and fix the cylindrical gas cylinder. By adjusting the distance between the positioning plate 31 and the limiting pressure plate 32, the positioning plate 31 and the limiting pressure plate 32 can clamp and fix gas cylinders with different outer diameters.

[0036] The avoidance-type moving component includes a first push cylinder 33, a limiting block 34, a horizontal bar 35, a vertical bar 36, a sliding column 37, and an upright plate 39. The first push cylinder 33 is fixedly installed on the bottom of the cabinet 1, and the two upright plates 39 are fixedly installed on the bottom wall of the cabinet 1 at intervals. The output end of the first push cylinder 33 slides through the bottom of the cabinet 1 and is fixedly connected to the bottom of the limiting block 34. The end of the horizontal bar 35 passes through the limiting block 34 and is slidably connected. The front end of the horizontal bar 35 is fixedly connected to the bottom of the vertical bar 36, and the top of the vertical bar 36 is fixedly connected to the rear side wall of the limiting pressure plate 32. The rear end of the horizontal bar 35 is fixedly installed with the sliding column 37. The two upright plates 39 are provided with two sliding grooves 38 that are slidably connected to the two ends of the sliding column 37 respectively. The rear end of the horizontal bar 35 can slide between the two upright plates 39, and the rear side wall of the limiting block 34 slides in contact with the front side wall of the two upright plates 39.

[0037] Preferably, the sliding groove 38 is composed of a vertical groove at the bottom and an inclined groove at the top. When the sliding column 37 slides in the vertical groove, the limiting plate 32 moves in the vertical direction. When the sliding column 37 slides in the inclined groove, the limiting plate 32 moves in the direction of the positioning plate 31 while moving vertically.

[0038] In this invention, the output end of the first push cylinder 33 drives the limiting block 34 to move vertically upward, causing the end of the sliding column 37 to slide in the vertical groove of the sliding groove 38. This causes the crossbar 35 to remain stationary within the limiting block 34. When the end of the sliding column 37 slides in the inclined groove of the sliding groove 38, the crossbar 35, under the limiting action of the limiting block 34, drives the limiting pressure plate 32 to move towards the positioning plate 31. This allows the gas cylinder to be fixed by the positioning plate 31 and the limiting pressure plate 32, and also provides an automatic calibration effect for the gas cylinder. This ensures that the gas cylinder can be pushed to the set position and fixed within a certain range on the roller 9. When the gas cylinder needs to be replaced, the first push cylinder 33 drives the limiting block 34 to move vertically downward, and the limiting pressure plate 32 will be completely reset below the roller 9 to avoid the gas cylinder, facilitating the replacement of the gas cylinder.

[0039] In some embodiments, please refer to Figure 3 and Figure 4 The leak-proof automatic connection mechanism 4 includes a double static sealing connection assembly and a sealing absorption assembly installed on the top of the cabinet 1. The double static sealing connection assembly is used to connect the gas cylinder and the branch pipe 7 and prevent gas from leaking outward. The sealing absorption assembly is used to absorb and discharge the leaked gas.

[0040] Specifically, the double static seal connection assembly includes a connecting hose 41, a shield 42, a second push cylinder 43, and a quick-connect plug 44. The second push cylinder 43 is fixedly installed on the top of the cabinet 1. The output end of the second push cylinder 43 extends through into the interior of the cabinet 1 and is fixedly connected to the shield 42. A quick-connect plug 44 for connecting to the gas cylinder is fixedly installed inside the shield 42. The top of the quick-connect plug 44 is fixedly connected to the connecting hose 41. The top of the connecting hose 41 passes through the top of the shield 42 and the top of the cabinet 1 and communicates with the bottom of the branch pipe 7. The quick-connect plug 44 adopts mature technology in the field and will not be described in detail here. Preferably, sealing rubber rings are provided at the bottom of both the shield 42 and the quick-connect plug 44 to further enhance the sealing effect of the shield 42 and the quick-connect plug 44, achieving a double sealing effect.

[0041] The sealed absorption assembly includes an inlet pipe 45, an outlet pipe 46, and an absorption box 47. The absorption box 47 is fixedly installed on the top of the cabinet 1, and an exhaust pipe is provided on the top of the absorption box 47. The side wall of the shield 42 is fixedly connected to the inlet pipe 45 and the outlet pipe 46. The other end of the inlet pipe 45 extends through to the outside of the front side of the cabinet 1, and the other end of the inlet pipe 45 is used to connect to an external air supply device, such as an air pump. The other end of the outlet pipe 46 is connected to the absorption box 47. The absorption box 47 is provided with a solution for removing fluorine from the gas, such as sodium hydroxide or calcium hydroxide solution.

[0042] In this invention, after the gas cylinder is clamped and fixed by the positioning plate 31 and the limiting pressure plate 32, the second push cylinder 43 drives the shield 42 to move vertically downward, so that the quick-connect plug 44 connects to the gas cylinder mouth, and the shield 42 abuts against the body of the gas cylinder to form a closed space; the gas cylinder supplies fluorine gas to the branch pipe 7 through the quick-connect plug 44 and the connecting hose 41, and inputs the fluorine gas into the main pipe 5 with the cooperation of the flow valve 8; while the external gas supply device injects air into the shield 42 through the air inlet pipe 45, and the air flows into the absorption box 47 through the air outlet pipe 46. After the fluorine in the gas is removed by the solution, it is discharged through the exhaust pipe to ensure the health of the surrounding workers.

[0043] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A flow-regulating gas supply device, comprising a cabinet (1), characterized in that: The top of the cabinet (1) is fixedly installed with a main pipe (5), and multiple branch pipes (7) are fixedly installed on the bottom side of the main pipe (5). Each branch pipe (7) is equipped with a flow valve (8), and the discharge end of the main pipe (5) is equipped with a flow meter (6). The bottom of the cabinet (1) is fixedly installed with a bracket (2), and multiple rollers (9) are rotatably installed on the inner side of the bracket (2) through bearings. The multiple rollers (9) are evenly distributed along the front and rear directions. The bracket (2) is provided with multiple self-calibrating fixing mechanisms (3) that have position calibration limits for the gas cylinder along the left and right directions; The top of the cabinet (1) is equipped with multiple leak-proof automatic connection mechanisms (4) that correspond one-to-one with the self-calibration fixing mechanism (3) and are used to connect the gas cylinder and the branch pipe (7).

2. The flow-regulated gas supply device according to claim 1, characterized in that The self-calibration fixing mechanism (3) includes a positioning plate (31), a limiting pressure plate (32), and an avoidance moving component. The positioning plate (31) is fixedly connected to the inner front side wall of the cabinet (1). The avoidance moving component is installed between the bracket (2) and the inner bottom of the cabinet (1). The moving ends of multiple avoidance moving components are fixedly connected to the corresponding limiting pressure plates (32). The avoidance moving component is used to drive the limiting pressure plate (32) to extend upward from the bottom of the bracket (2) and then press the gas cylinder towards the positioning plate (31) for fixation.

3. The flow-regulated gas supply device according to claim 2, characterized in that The positioning plate (31) has a U-shaped cross section that opens outward on both sides, and the limiting pressure plate (32) has a V-shaped cross section.

4. The flow-regulated gas supply device according to claim 2, characterized in that The avoidance-type moving assembly includes a first push cylinder (33), a limiting block (34), a horizontal bar (35), a vertical bar (36), a sliding column (37), and a vertical plate (39). The first push cylinder (33) is fixedly installed on the bottom of the cabinet (1), and the two vertical plates (39) are fixedly installed at intervals on the bottom wall of the cabinet (1). The output end of the first push cylinder (33) slides through the bottom of the cabinet (1) and is fixedly connected to the bottom of the limiting block (34). The end of the horizontal bar (35) passes through the limiting block (34) and is slidably connected. The front end of the horizontal bar (35) is fixedly connected to the bottom of the vertical bar (36), and the top of the vertical bar (36) is fixedly connected to the rear side wall of the limiting pressure plate (32). A sliding column (37) is fixedly installed at the rear end of the horizontal bar (35). Two sliding grooves (38) are opened on the two vertical plates (39) respectively and are limited and slidably connected to the two ends of the sliding column (37). The rear end of the horizontal bar (35) can be slidably inserted between the two vertical plates (39). The rear side wall of the limiting block (34) is in sliding contact with the front side wall of the two vertical plates (39).

5. The flow-regulated gas supply device according to claim 4, characterized in that The sliding groove (38) is composed of a vertical groove at the bottom and an inclined groove at the top.

6. The flow-regulated gas supply device of claim 1, wherein The leak-proof automatic connection mechanism (4) includes a double static sealing connection assembly and a sealing absorption assembly installed on the top of the cabinet (1). The double static sealing connection assembly is used to connect the gas cylinder and the branch pipe (7) and prevent gas from leaking outward. The sealing absorption assembly is used to absorb and discharge the leaked gas.

7. The flow-regulated gas supply device according to claim 6, characterized in that The double static seal connection assembly includes a connecting hose (41), a shield (42), a second push cylinder (43), and a quick-connect plug (44). The second push cylinder (43) is fixedly installed on the top of the cabinet (1). The output end of the second push cylinder (43) extends through into the cabinet (1) and is fixedly connected to the shield (42). A quick-connect plug (44) for connecting to the gas cylinder is fixedly installed inside the shield (42). The top of the quick-connect plug (44) is fixedly connected to the connecting hose (41). The top of the connecting hose (41) passes through the top of the shield (42) and the top of the cabinet (1) and communicates with the bottom of the branch pipe (7).

8. The flow-regulated gas supply device according to claim 7, characterized in that The sealing absorption assembly includes an air inlet pipe (45), an air outlet pipe (46), and an absorption box (47). The absorption box (47) is fixedly installed on the top of the cabinet (1), and an exhaust pipe is provided on the top of the absorption box (47). The side wall of the shield (42) is fixedly connected to the air inlet pipe (45) and the air outlet pipe (46). The other end of the air outlet pipe (46) is connected to the absorption box (47), and the other end of the air inlet pipe (45) extends through to the front outside of the cabinet (1).

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