Gas mixing device with buffer tank

Abstract

This utility model relates to the technical field of gas mixing equipment, and in particular to a gas mixing device with a buffer tank. By setting up a buffer device, the mixed gas is buffered, reducing pressure fluctuations during gas output and improving the mixing effect. Furthermore, by setting up a drain plug, condensate inside the machine is drained, further improving the mixing efficiency. The device includes a mixing unit; it also includes two drying units, a control unit, a buffer device, multiple drain plugs, and an explosion venting device. The two drying units, the control unit, and the buffer device are all installed on the mixing unit, and the multiple drain plugs and explosion venting device are all installed on the mixing unit and the buffer device. The mixing unit mixes the gas, the drying unit dries the gas, the control unit detects and controls the gas flow and pressure, the buffer device buffers the mixed gas, the drain plugs facilitate the drainage of condensate inside the machine, and the explosion venting device vents explosions.

Description

Technical Field

[0001] This utility model relates to the technical field of gas mixing equipment, and in particular to a gas mixing device with a buffer tank. Background Technology

[0002] In human production and daily life, there is sometimes a need to use mixed gases containing specific components. These mixed gases are usually made by mixing multiple components with air in a quantitative manner.

[0003] Existing gas mixing devices, such as the Chinese utility model patent with authorization announcement number CN222446041U, representing a medical gas mixing device, mainly include an electronic pressure gauge, a controller, a first gas collecting hood, a gas dispersing hood, a second gas collecting hood, and a variable frequency air pump. The electronic pressure gauge detects the inlet pressure, the controller adjusts the power of the variable frequency air pump based on the inlet pressure, the first gas collecting hood, the gas dispersing hood, and the second gas collecting hood work together to mix the gas, and the variable frequency air pump delivers the gas.

[0004] However, the existing technology and equipment still have the following problems when in use: the existing machines lack buffer devices, which leads to large fluctuations in gas pressure when outputting gas, resulting in poor mixing effect. In addition, the existing machines lack drainage devices, and moisture in the air will accumulate and condense inside the machine during mixing, which reduces the mixing efficiency of the machine. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a gas mixing device with a buffer tank, which buffers the mixed gas by setting a buffer device to reduce pressure fluctuations during gas output and improve the mixing effect, and discharges condensate inside the machine by setting a drain plug to improve the mixing efficiency of the machine.

[0006] This utility model discloses a gas mixing device with a buffer tank, comprising a mixing device; it also includes two drying devices, a control device, a buffer device, multiple drain plugs, and an explosion venting device. The two drying devices, the control device, and the buffer device are all installed on the mixing device, and the multiple drain plugs and the explosion venting device are all installed on the mixing device and the buffer device. The mixing device mixes the gas, the drying device dries the gas, the control device detects and controls the gas flow and pressure, the buffer device buffers the mixed gas, the drain plugs facilitate the discharge of condensate inside the machine, and the explosion venting device vents explosions in the machine.

[0007] Preferably, the mixing device includes two air pumps, a constant pressure chamber, two pressure relief pipes, two pressure relief valves, two pipes (I), a mixing chamber, a gas collection plate (I), a mixing plate, and a gas collection plate (II). The two air pumps, the constant pressure chamber, and the mixing chamber are all installed on the ground. The constant pressure chamber has an exhaust port (I) on each of its left and right sides. The constant pressure chamber has two chambers arranged on the left and right sides. The rear and front ends of the two chambers of the constant pressure chamber each have two air inlets (I) and two exhaust ports (II). The two air pumps are installed at one of the two air inlets of the constant pressure chamber. The mixing chamber has two air inlets (II) at its rear end and one exhaust port (III) at its front end. The two pressure relief pipes are installed at one of the two exhaust ports of the constant pressure chamber. The two pressure relief valves are installed at one of the two... Inside the pressure relief pipe, one end of each of the two pipes is installed at the two exhaust ports of the constant pressure box, and the other end of each pipe is installed at the two air inlets of the mixing box. Air collecting plate one, mixing plate three, and air collecting plate two are installed sequentially from back to front inside the mixing box. Air collecting plate one and air collecting plate two are both funnel-shaped, tapering from back to front, and each has multiple vent holes at its front end. The mixing plate is arc-shaped, bent from front to back, and has multiple vent holes on both sides. An air pump delivers gas, and the constant pressure box, pressure relief pipe, and pressure relief valve work together to control the gas delivery pressure, preventing excessive internal gas pressure. Air collecting plate one, mixing plate three, and air collecting plate two work together to mix the flowing gas.

[0008] Preferably, the drying device includes two pipes and two air dryers. The two pipes are respectively installed at the top of two air pumps, and the two air dryers are respectively installed at the top of the two pipes. The air dryers dry the gas passing through the pipes.

[0009] Preferably, the control device includes two flow meters, two pressure gauges, and a PLC controller. The two flow meters and two pressure gauges are respectively connected and installed on two pipelines. The PLC controller is installed on a constant pressure box. The two flow meters, two pressure gauges, and two air pumps are all connected to the PLC controller by wires. The flow meters and pressure gauges measure the pressure and flow rate of the gas flowing through the pipelines. The PLC controller controls the speed of the air pumps based on the measured data, thereby controlling the pressure and flow rate of the gas, which facilitates the mixing of gases in any proportion.

[0010] Preferably, the buffer device includes a buffer tank and multiple buffer plates. The buffer tank is installed on the ground, with an exhaust pipe at the top and an air inlet pipe at the tangential position at the bottom. The air inlet pipe of the buffer tank is connected to the exhaust port of the mixing chamber. Multiple buffer plates are evenly spaced inside the buffer tank, and each buffer plate has multiple vent holes. The buffer tank and buffer plates work together to slow down the flow rate of the mixed gas, thereby buffering it, improving the uniformity of gas mixing, and reducing pressure fluctuations during gas output.

[0011] Preferably, the mixing tank is provided with multiple drain outlets at both ends and the buffer tank side, and the multiple drain plugs are detachably installed in the multiple drain outlets; the drain outlets facilitate the discharge of condensate from inside the machine, and the drain plugs seal the drain outlets.

[0012] Preferably, the top of each of the two chambers of the constant pressure box is provided with an installation groove 1, the top of the mixing box is provided with an installation groove 2, and the side of the buffer tank facing the mixing box is provided with an installation groove 3. The explosion relief device includes two explosion relief plates 1, 2, and 3. The two explosion relief plates 1 are fixedly installed in the two installation grooves 1, the explosion relief plate 2 is fixedly installed in the installation groove 2, and the explosion relief plate 3 is fixedly installed in the installation groove 3. The two explosion relief plates 1, 2, and 3 are all made of materials with weaker strength than the machine. When the internal air pressure of the machine is too high, the explosion relief plates 1, 2, and 3 will rupture first, guiding the gas to escape from the rupture and preventing damage to the machine.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: by buffering the mixed gas, the pressure fluctuation during gas output can be reduced, and the mixing effect is better; and the condensate inside the machine can be discharged, resulting in higher mixing efficiency of the machine. Attached Figure Description

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

[0015] Figure 2 This is an isometric sectional view of the mixing and drying devices.

[0016] Figure 3 This is an isometric structural diagram of the drying device;

[0017] Figure 4 This is an isometric structural diagram of the control device;

[0018] Figure 5 This is a schematic diagram of the isometric cross-sectional structure of the buffer device;

[0019] Figure 6 This is an isometric structural diagram of the drain plug;

[0020] Figure 7 This is an isometric structural diagram of the drain plug from another direction;

[0021] Figure 8 This is an isometric structural diagram of the explosion venting device.

[0022] The attached diagram is labeled as follows: 01, Mixing device; 11, Air pump; 12, Constant pressure tank; 13, Pressure relief pipe; 14, Pressure relief valve; 15, Pipeline 1; 16, Mixing tank; 17, Gas collection plate 1; 18, Mixing plate; 19, Gas collection plate 2; 02, Drying device; 21, Pipeline 2; 22, Air dryer; 03, Control device; 31, Flow meter; 32, Pressure gauge; 33, PLC controller; 04, Buffer device; 41, Buffer tank; 42, Buffer plate; 05, Drain plug; 06, Explosion relief device; 61, Explosion relief plate 1; 62, Explosion relief plate 2; 63, Explosion relief plate 3. Detailed Implementation

[0023] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1

[0024] like Figure 1 As shown, the system includes a mixing device 01; it also includes two drying devices 02, a control device 03, a buffer device 04, multiple drain plugs 05, and an explosion venting device 06. The two drying devices 02, the control device 03, and the buffer device 04 are all installed on the mixing device 01, and the multiple drain plugs 05 and the explosion venting device 06 are all installed on the mixing device 01 and the buffer device 04. The mixing device 01 mixes the gas, the drying device 02 dries the gas, the control device 03 detects and controls the gas flow and pressure, the buffer device 04 buffers the mixed gas, the drain plugs 05 facilitate the discharge of condensate from inside the machine, and the explosion venting device 06 vents explosions from the machine.

[0025] like Figure 2As shown, the mixing device 01 includes two air pumps 11, a constant pressure tank 12, two pressure relief pipes 13, two pressure relief valves 14, two pipes 15, a mixing tank 16, a gas collection plate 17, a mixing plate 18, and a gas collection plate 19. The two air pumps 11, the constant pressure tank 12, and the mixing tank 16 are all installed on the ground. The constant pressure tank 12 has an exhaust port 1 on each of its left and right sides. The constant pressure tank 12 has two chambers arranged on its left and right sides. The rear and front ends of the two chambers of the constant pressure tank 12 are respectively provided with two air inlets 1 and two exhaust ports 2. The two air pumps 11 are respectively installed at one of the two air inlets of the constant pressure tank 12. The mixing tank 16 has two air inlets 2 at its rear end and one exhaust port 2 at its front end. The exhaust port is three, and two pressure relief pipes 13 are respectively installed at one of the two exhaust ports of the constant pressure box 12. Two pressure relief valves 14 are respectively installed inside the two pressure relief pipes 13. One end of the two pipes 15 is respectively installed at the two exhaust ports of the constant pressure box 12, and the other end of the two pipes 15 is respectively installed at the two air inlets 2 of the mixing box 16. The first air collecting plate 17, the mixing plate 18 and the second air collecting plate 19 are sequentially installed inside the mixing box 16 from back to front. The first air collecting plate 17 and the second air collecting plate 19 are both in the shape of a bucket that tightens from back to front, and the front end of the first air collecting plate 17 and the second air collecting plate 19 are provided with multiple air holes. The mixing plate 18 is in the shape of an arc that bends from front to back, and multiple air holes are provided on the left and right sides of the mixing plate 18.

[0026] like Figure 3 As shown, the drying device 02 includes two pipes 21 and two air dryers 22. The two pipes 21 are respectively installed at the top of the two air pumps 11, and the two air dryers 22 are respectively installed at the top of the two pipes 21.

[0027] like Figure 4 As shown, the control device 03 includes two flow meters 31, two pressure gauges 32 and a PLC controller 33. The two flow meters 31 and two pressure gauges 32 are respectively connected and installed on two pipes 15. The PLC controller 33 is installed on the constant pressure box 12. The two flow meters 31, two pressure gauges 32 and two air pumps 11 are all connected to the PLC controller 33 by wires.

[0028] like Figure 5 As shown, the buffer device 04 includes a buffer tank 41 and multiple buffer plates 42. The buffer tank 41 is installed on the ground. An exhaust pipe is provided at the top of the buffer tank 41, and an air inlet pipe is provided at the tangential position of the bottom of the buffer tank 41. The air inlet pipe of the buffer tank 41 is connected to the exhaust port of the mixing box 16. Multiple buffer plates 42 are evenly spaced inside the buffer tank 41, and multiple air vents are provided on each of the multiple buffer plates 42.

[0029] like Figure 6 and Figure 7As shown, multiple drain outlets are provided at the left and right ends of the mixing tank 16 and the side end of the buffer tank 41, and the multiple drain plugs 05 are detachably installed in the multiple drain outlets.

[0030] First, the air pump 11 is turned on, and the air pump 11 delivers gas. The constant pressure box 12, pressure relief pipe 13, and pressure relief valve 14 work together to control the gas delivery pressure to prevent excessive gas pressure inside the machine. The first gas collecting plate 17, the mixing plate 18, and the second gas collecting plate 19 work together to mix the flowing gas. The air dryer 22 dries the gas passing through the second pipe 21. The flow meter 31 and the pressure gauge 32 measure the pressure and flow rate of the gas flowing through the first pipe 15. The PLC controller 33 controls the speed of the air pump 11 based on the measured data, thereby controlling the gas pressure and flow rate, facilitating the mixing of gases in any proportion. The buffer tank 41 and the buffer plate 42 work together to slow down the flow rate of the mixed gas, thereby buffering it, improving the uniformity of gas mixing, and reducing pressure fluctuations during gas output. The drain outlet facilitates the discharge of condensate inside the machine, and the drain plug 05 seals the drain outlet. Example 2

[0031] In addition to Example 1, it also includes:

[0032] like Figure 8 As shown, the top of each of the two chambers of the constant pressure box 12 is provided with an installation groove 1, the top of the mixing box 16 is provided with an installation groove 2, and the side of the buffer tank 41 facing the mixing box 16 is provided with an installation groove 3. The explosion relief device 06 includes two explosion relief plates 1 61, 2 62 and 3 63. The two explosion relief plates 1 61 are fixedly installed in the two installation grooves 1, the explosion relief plate 2 62 is fixedly installed in the installation groove 2, and the explosion relief plate 3 63 is fixedly installed in the installation groove 3. The two explosion relief plates 1 61, 2 62 and 3 63 are all made of materials with weaker strength than the machine.

[0033] First, the air pump 11 is turned on, and it delivers gas. The constant pressure box 12, pressure relief pipe 13, and pressure relief valve 14 work together to control the gas delivery pressure to prevent excessive gas pressure inside the machine. The first gas collecting plate 17, the mixing plate 18, and the second gas collecting plate 19 work together to mix the flowing gas. The air dryer 22 dries the gas passing through pipe 21. The flow meter 31 and the pressure gauge 32 measure the pressure and flow rate of the gas flowing through pipe 15. The PLC controller 33 uses the measured data to control the rotation speed of the air pump 11. The system controls the pressure and flow of the gas, allowing for easy mixing of gases in any proportion. Buffer tank 41 and buffer plate 42 work together to slow down the flow rate of the mixed gas, thereby buffering it, improving the uniformity of gas mixing, and reducing pressure fluctuations during gas output. The drain outlet facilitates the discharge of condensate from inside the machine, and drain plug 05 seals the drain outlet. Explosion relief plates 61, 62, and 63 rupture first when the internal gas pressure is too high, guiding the gas out from the rupture and preventing damage to the machine.

[0034] like Figures 1 to 8 As shown, this utility model discloses a gas mixing device with a buffer tank. During operation, the air pump 11 is first turned on to deliver gas. The constant pressure tank 12, pressure relief pipe 13, and pressure relief valve 14 work together to control the gas delivery pressure, preventing excessive internal gas pressure. The first gas collecting plate 17, mixing plate 18, and the second gas collecting plate 19 work together to mix the flowing gas. The air dryer 22 dries the gas passing through pipe 21. The flow meter 31 and pressure gauge 32 measure the pressure and flow rate of the gas flowing through pipe 15. The PLC controller 33... The measured data controls the rotation speed of the air pump 11, thereby controlling the gas pressure and flow rate, facilitating the mixing of gases in any proportion. The buffer tank 41 and the buffer plate 42 work together to slow down the flow rate of the mixed gas, thereby buffering it, improving the uniformity of gas mixing, and reducing pressure fluctuations during gas output. The drain outlet facilitates the discharge of condensate from inside the machine, and the drain plug 05 seals the drain outlet. When the internal gas pressure is too high, the explosion relief plates 61, 62, and 63 rupture first, guiding the gas out from the rupture point to prevent damage to the machine.

[0035] In this invention, the air pump 11 is first turned on, and the air pump 11 delivers gas. The constant pressure box 12, pressure relief pipe 13, and pressure relief valve 14 work together to control the gas delivery pressure, preventing excessive gas pressure inside the machine. The first gas collecting plate 17, the mixing plate 18, and the second gas collecting plate 19 work together to mix the flowing gas. The air dryer 22 dries the gas passing through the second pipe 21. The flow meter 31 and the pressure gauge 32 measure the pressure and flow rate of the gas flowing through the first pipe 15. The PLC controller 33 controls the rotation speed of the air pump 11 based on the measured data, thereby controlling the gas pressure and flow rate, facilitating gas control. The mixture is prepared in any proportion. The buffer tank 41 and the buffer plate 42 work together to slow down the flow rate of the mixed gas, thereby buffering it, improving the uniformity of gas mixing, reducing pressure fluctuations during gas output, and facilitating the discharge of condensate from inside the machine. The drain plug 05 seals the drain outlet. When the internal gas pressure is too high, the explosion relief plates 61, 62, and 63 rupture first, guiding the gas out from the rupture point to prevent damage to the machine. The equipment is commercially available, and technicians in this industry only need to follow the accompanying instruction manual for installation and operation, without requiring any creative work from those skilled in the art.

[0036] The main functions achieved by this utility model are: by setting a buffer device 04, the mixed gas is buffered, reducing pressure fluctuations during gas output and improving the mixing effect; and by setting a drain plug 05, the condensate inside the machine is drained, improving the mixing efficiency of the machine. This solves the existing technical problems that the lack of a buffer device in existing machines leads to large pressure fluctuations during gas output, resulting in poor mixing effect, and the lack of a drainage device in existing machines causes moisture in the air to accumulate and condense inside the machine during mixing, resulting in reduced mixing efficiency.

[0037] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A gas mixing device with a buffer tank, comprising a mixing device (01); characterized in that, It also includes two drying devices (02), a control device (03), a buffer device (04), multiple drain plugs (05) and an explosion venting device (06). The two drying devices (02), the control device (03) and the buffer device (04) are all installed on the mixing device (01), and the multiple drain plugs (05) and the explosion venting device (06) are all installed on the mixing device (01) and the buffer device (04). The mixing device (01) mixes the gas, the drying device (02) dries the gas, the control device (03) detects and controls the gas flow and pressure, the buffer device (04) buffers the mixed gas, the drain plugs (05) facilitate the discharge of condensate inside the machine, and the explosion venting device (06) vents the explosion of the machine.

2. A gas mixing device with a buffer tank as claimed in claim 1, characterized in that The mixing device (01) includes two air pumps (11), a constant pressure tank (12), two pressure relief pipes (13), two pressure relief valves (14), two pipes (15), a mixing tank (16), a gas collection plate (17), a mixing plate (18), and a gas collection plate (19). The two air pumps (11), the constant pressure tank (12), and the mixing tank (16) are all installed on the ground. The constant pressure tank (12) has an exhaust port on each of its left and right sides. The constant pressure tank (12) has two chambers on its left and right sides. The two chambers of the constant pressure tank (12) have two air inlets and two exhaust ports at their rear and front ends, respectively. The two air pumps (11) are installed at one of the two air inlets of the constant pressure tank (12). The mixing tank (16) has two air inlets at its rear end and two exhaust ports at its front end. The exhaust port is three, and two pressure relief pipes (13) are installed at one of the two exhaust ports of the constant pressure box (12). Two pressure relief valves (14) are installed inside the two pressure relief pipes (13). One end of the two pipes (15) is installed at the two exhaust ports of the constant pressure box (12). The other end of the two pipes (15) is installed at the two air inlets of the mixing box (16). The first gas collecting plate (17), the mixing plate (18), and the second gas collecting plate (19) are installed in the mixing box (16) from back to front. The first gas collecting plate (17) and the second gas collecting plate (19) are both in the shape of a bucket that is tightened from back to front. The front end of the first gas collecting plate (17) and the second gas collecting plate (19) are provided with multiple ventilation holes. The mixing plate (18) is in the shape of an arc that is bent from front to back. Multiple ventilation holes are provided on the left and right sides of the mixing plate (18).

3. A gas mixing device with a buffer tank as claimed in claim 2, characterized in that The drying device (02) includes two pipes (21) and two air dryers (22). The two pipes (21) are respectively installed at the top of two air pumps (11), and the two air dryers (22) are respectively installed at the top of two pipes (21).

4. A gas mixing device with a buffer tank as described in claim 2, characterized in that, The control device (03) includes two flow meters (31), two pressure gauges (32) and a PLC controller (33). The two flow meters (31) and two pressure gauges (32) are respectively connected and installed on two pipes (15). The PLC controller (33) is installed on a constant pressure box (12). The two flow meters (31), two pressure gauges (32) and two air pumps (11) are all connected to the PLC controller (33) by wires.

5. A gas mixing device with a buffer tank as described in claim 2, characterized in that, The buffer device (04) includes a buffer tank (41) and multiple buffer plates (42). The buffer tank (41) is installed on the ground. An exhaust pipe is provided at the top of the buffer tank (41), and an air inlet pipe is provided at the tangential position at the bottom of the buffer tank (41). The air inlet pipe of the buffer tank (41) and the exhaust port of the mixing box (16) are connected in a continuous manner. Multiple buffer plates (42) are evenly spaced inside the buffer tank (41), and multiple air vents are provided on each of the multiple buffer plates (42).

6. A gas mixing device with a buffer tank as described in claim 5, characterized in that, The mixing tank (16) has multiple drain outlets at its left and right ends and the buffer tank (41) at its side ends, and the multiple drain plugs (05) are detachably installed in the multiple drain outlets.

7. A gas mixing device with a buffer tank as described in claim 5, characterized in that, The constant pressure box (12) has a mounting slot 1 at the top of each of its two chambers, the mixing box (16) has a mounting slot 2 at the top, and the buffer tank (41) has a mounting slot 3 at the side facing the mixing box (16). The explosion relief device (06) includes two explosion relief plates 1 (61), 2 (62), and 3 (63). The two explosion relief plates 1 (61) are fixedly installed in the two mounting slots 1, the explosion relief plate 2 (62) is fixedly installed in the mounting slot 2, and the explosion relief plate 3 (63) is fixedly installed in the mounting slot 3. The two explosion relief plates 1 (61), 2 (62), and 3 (63) are all made of materials with a strength weaker than that of the machine.

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