A gas mixing device

Abstract

The utility model discloses a kind of gas mixing devices, it is related to the technical field of gas mixing, including mixing tank, circulating heating mechanism and pressure regulating mechanism are connected on the mixing tank;The pressure regulating mechanism includes the gas holder being arranged in the side of mixing tank, gas holder is equipped with gas pipe between mixing tank, the both ends of gas pipe are communicated with gas holder and mixing tank, control valve is equipped on the gas pipe.The mixing tank of the application is provided with pressure regulating mechanism, the gas holder, gas pipe and control valve on pressure regulating mechanism can effectively adjust the gas pressure inside mixing tank, ensure that the mixing process is carried out under the safe pressure condition, and the stability of mixing process is improved, while the safety of gas mixing device in the operation process is guaranteed.The existing gas mixing device does not have pressure regulating function, cannot adjust the gas pressure inside mixing tank, and the safety in the gas mixing process cannot be guaranteed.

Description

Technical Field

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

[0002] A gas mixing device is a device used in laboratory environments or industrial applications to precisely mix two or more gases. They are typically used to generate gas mixtures in specific proportions for various tests and calibrations.

[0003] For example, Chinese patent CN212942328U discloses a gas mixing device for gas distribution, including a mixing chamber, a sealing cover, a support column, a stirring and mixing mechanism, a circulating mixing mechanism, and a heating mechanism. The sealing cover is fixedly installed on the top of the mixing chamber, the support column is fixedly installed on both sides of the lower surface of the mixing chamber, the stirring and mixing mechanism includes a mixing motor and a rotating shaft, the top of the mixing chamber is provided with a motor frame, the motor frame is fixedly connected to the mixing chamber through the sealing cover, and the mixing motor is fixedly installed on the motor frame.

[0004] Although the gas mixing device disclosed above can fully mix the gas and is equipped with a heating mechanism to heat the gas to increase the gas mixing effect, it does not have a pressure regulating function and cannot adjust the gas pressure inside the mixing tank. Consequently, the pressure conditions during the gas mixing process cannot be adjusted, and the safety during the gas mixing process cannot be guaranteed. Utility Model Content

[0005] To address the shortcomings of the aforementioned background technology, this utility model proposes a gas mixing device that solves the technical problems of existing gas mixing devices lacking pressure regulation function, being unable to adjust the gas pressure inside the mixing tank, and failing to guarantee safety during the gas mixing process.

[0006] The technical solution of this utility model is implemented as follows: a gas mixing device includes a mixing tank, the opening end of which is detachably connected to a tank cover, and a gas source input pipe is provided on the tank cover. A circulating heating mechanism and a pressure regulating mechanism are connected to the mixing tank. The pressure regulating mechanism includes a gas storage tank disposed on the side of the mixing tank, and a gas delivery pipe is provided between the gas storage tank and the mixing tank. The two ends of the gas delivery pipe are respectively connected to the gas storage tank and the mixing tank, and a control valve is provided on the gas delivery pipe. The gas mixing device of this application heats the mixing tank through a circulating heating mechanism, increasing the chemical reaction rate within the tank, changing the gas density to improve mixing, and enhancing mixing efficiency and quality. Simultaneously, the mixing tank is equipped with a pressure regulating mechanism, including a gas storage tank, a gas delivery pipe, and a control valve. These components effectively adjust the gas pressure inside the mixing tank. When the gas pressure exceeds a set value, the control valve opens, allowing some of the gas inside the mixing tank to enter the gas storage tank, thereby reducing the internal gas pressure and ensuring the mixing process occurs under safe pressure conditions. The pressure regulating mechanism ensures the safety of the gas mixing device during operation and improves the stability of the mixing process. This solves the technical problem of existing gas mixing devices lacking pressure regulating capabilities, unable to adjust the gas pressure inside the mixing tank, and thus compromising safety during the gas mixing process.

[0007] The mixing tank has an opening at the top, and the opening end of the mixing tank is detachably connected to a tank cover. This means that the top of the mixing tank has internal threads, and the tank cover has external threads. The detachable connection between the tank cover and the mixing tank is achieved through the threaded connection between the tank cover and the mixing tank.

[0008] Preferably, the control valve includes a pressure regulating valve and an input valve, which are respectively connected to the gas supply pipe. The pressure regulating valve and the input valve are configured to manually control the flow rate of high-pressure gas along the gas supply pipe, while the input valve is configured to control whether the high-pressure gas enters the mixing tank, thereby adjusting the gas pressure within the mixing tank and ensuring that the mixing process takes place under safe pressure conditions.

[0009] Preferably, an exhaust pipe is provided on one side of the gas storage tank, and an exhaust valve is provided on the exhaust pipe. If the pressure of the gas storage tank exceeds a set value, some gas can be discharged through the exhaust pipe and exhaust valve to reduce the pressure of the gas storage tank. By setting the exhaust pipe and exhaust valve, excessive pressure in the gas storage tank can be effectively discharged, thereby protecting the operational safety of the entire equipment.

[0010] Preferably, the circulating heating mechanism is located outside the mixing tank and includes a heating water tank, a heater, a delivery pipe, a water pump, and a spiral heating tube. One end of the delivery pipe is connected to the heating water tank, and the other end is connected to the spiral heating tube. The heater is installed at the top of the heating water tank, with its heating end extending into the interior of the tank. The water pump is installed on the delivery pipe, and the spiral heating tube is fitted onto the outer surface of the mixing tank. The circulating heating mechanism, including the heating water tank, heater, delivery pipe, water pump, and spiral heating tube, effectively provides and regulates the temperature inside the mixing tank. The heater transfers heat to the water in the heating water tank, and then the hot water is delivered to the spiral heating tube via the water pump and delivery pipe. The hot water in the spiral heating tube heats the mixing tank. The presence of the circulating heating mechanism can increase the chemical reaction rate, change the gas density to improve mixing, and has a significant impact on mixing efficiency and quality.

[0011] Preferably, the spiral heating tube has a circulation inlet and a circulation outlet at both ends. Two delivery pipes are installed on the mixing tank, located above and below it respectively. The upper delivery pipe connects to the circulation inlet, and the lower delivery pipe connects to the circulation outlet. The circulation inlet and outlet are designed to allow high-temperature water, heated by the heater at the top of the heating tank, to flow out through the upper delivery pipe and into the spiral heating tube through the circulation inlet. Low-temperature water, having transferred its heat, flows out through the circulation outlet of the spiral heating tube and into the bottom of the heating tank through the lower delivery pipe. This facilitates the separation of low-temperature and high-temperature water, ensures the water temperature flowing into the circulation inlet, and effectively transfers the heat generated by the heater to the mixing tank, thereby improving heating efficiency.

[0012] Preferably, the mixing tank is externally fitted with an insulation shell, and the spiral heating tube is located between the mixing tank and the insulation shell. The spiral heating tube is equipped with a temperature display extending out of the insulation shell. The insulation shell prevents heat loss from the spiral heating tube and facilitates the transfer of heat from the spiral heating tube to the mixing tank. The temperature display is designed to show the real-time temperature inside the mixing tank. The temperature display on the spiral heating tube provides a direct reading of the internal temperature of the mixing tank, helping the operator monitor and control the temperature during operation.

[0013] Preferably, the gas input pipe includes a first gas input pipe and a second gas input pipe, which are respectively connected to the tank cover. The arrangement of the first and second gas input pipes provides more input paths for the gas, facilitating the addition and replacement of gas.

[0014] Preferably, the tank lid is provided with an observation port and a detection tube, and the observation port is sealed. The observation port is provided to allow the operator to conveniently monitor the state inside the mixing tank. The observation port allows the operator to directly observe the internal conditions of the mixing tank, while the detection port can be used to insert various sensors to obtain data such as temperature and pressure inside the mixing tank, which helps the operator to accurately control the mixing process. The seal is provided to protect the observation port.

[0015] Preferably, the mixing tank is equipped with a stirring mechanism; the stirring mechanism includes a sleeve and a stirring shaft, with helical stirring blades connected to the outside of the sleeve, one end of the stirring shaft extending into the mixing tank and connected to the inside of the sleeve, and the other end of the stirring shaft passing through the tank lid and extending outwards. A stirring motor is connected to the tank lid, and the extended end of the stirring shaft is connected to the stirring motor. The stirring mechanism includes a stirring motor, a stirring shaft, a sleeve, and helical stirring blades. These components work together to provide a powerful stirring force, enabling different gases to be thoroughly mixed.

[0016] Preferably, the spiral stirring blades are provided with through holes; at least two through holes are evenly arranged on the spiral stirring blades. The through holes reduce the direct contact area between the gas and the blades, lower frictional resistance, improve stirring efficiency, and ensure uniform mixing. The even arrangement of at least two through holes along the spiral stirring blades further reduces the direct contact area between the gas and the blades, further improving stirring efficiency.

[0017] The beneficial effects of this utility model are: The gas mixing device of this application can heat the mixing tank through a circulating heating mechanism, thereby increasing the chemical reaction rate inside the mixing tank, changing the gas density to improve the mixing situation, and improving the mixing efficiency and quality. At the same time, the mixing tank of this application is equipped with a pressure regulating mechanism, which includes a gas storage tank, a gas delivery pipe, and a control valve. These components can effectively adjust the gas pressure inside the mixing tank, ensuring that the mixing process is carried out under safe pressure conditions. The pressure regulating mechanism ensures the safety of the gas mixing device during operation and also improves the stability of the mixing process.

[0018] The gas mixing device of this application includes a stirring mechanism: the stirring mechanism includes a stirring motor, a stirring shaft, a sleeve and a spiral stirring blade. These components work together to provide a strong stirring force, which enables different gases to be fully mixed. The spiral stirring blade is provided with through holes, which can further improve the stirring efficiency and ensure the uniformity of the mixture. Attached Figure Description

[0019] To more clearly illustrate the embodiments of this utility model, the drawings used in the description of the embodiments 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.

[0020] Figure 1 This is a schematic diagram of the main structure of the device in this utility model.

[0021] Figure 2 This is a schematic diagram of the front structure of this utility model.

[0022] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0023] Figure 4 This is a schematic diagram of the stirring mechanism in this utility model.

[0024] Figure 5 This is a schematic diagram of the top structure of the device in this utility model.

[0025] In the diagram: 1. Mixing tank; 2. Tank lid; 3. Heating water tank; 4. Heater; 5. Infusion pipe; 6. Water pump; 7. Spiral heating tube; 8. Stirring motor; 9. Stirring shaft; 10. Sleeve; 11. Spiral stirring blades; 12. Through hole; 13. Gas storage tank; 14. Gas delivery pipe; 15. Pressure regulating valve; 16. Input valve; 17. Circulation inlet; 18. Circulation outlet; 19. First source gas input pipe; 20. Second source gas input pipe; 21. Exhaust pipe; 22. Exhaust valve; 23. Observation port; 24. Detection tube; 25. Cover; 26. Temperature display. Detailed Implementation

[0026] 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.

[0027] Example 1, a gas mixing device, such as Figure 1 , Figure 2 and Figure 5As shown, the device includes a mixing tank 1, with a detachable tank cover 2 connected to the open end of the mixing tank 1. The tank cover 2 is provided with a gas source input pipe. The mixing tank 1 is connected to a circulating heating mechanism and a pressure regulating mechanism. The pressure regulating mechanism includes a gas storage tank 13 disposed on the side of the mixing tank 1. A gas transmission pipe 14 is provided between the gas storage tank 13 and the mixing tank 1. The two ends of the gas transmission pipe 14 are respectively connected to the gas storage tank 13 and the mixing tank 1. A control valve is provided on the gas transmission pipe 14. The gas mixing device of this application heats the mixing tank 1 through a circulating heating mechanism, increasing the chemical reaction rate within the mixing tank 1, changing the gas density to improve mixing, and enhancing mixing efficiency and quality. Simultaneously, the mixing tank 1 of this application is equipped with a pressure regulating mechanism, including a gas storage tank 13, a gas delivery pipe 14, and a control valve. These components effectively adjust the gas pressure inside the mixing tank 1. Specifically, when the gas pressure inside the mixing tank 1 exceeds a set value, the control valve opens, allowing some of the gas inside the mixing tank 1 to enter the gas storage tank 13, thereby reducing the gas pressure inside the mixing tank 1. This ensures that the mixing process takes place under safe pressure conditions. The pressure regulating mechanism ensures the safety of the gas mixing device during operation and also improves the stability of the mixing process. This solves the technical problem that existing gas mixing devices lack pressure regulating capabilities, cannot adjust the gas pressure inside the mixing tank, and therefore cannot guarantee safety during the gas mixing process.

[0028] The mixing tank 1 has an opening at the top, and the opening end of the mixing tank 1 is detachably connected to the tank cover 2. This means that the top of the mixing tank 1 has an internal thread, and the tank cover 2 has an external thread. The detachable connection between the tank cover 2 and the mixing tank 1 is achieved through the threaded connection between the tank cover 2 and the mixing tank 1.

[0029] Example 2, based on Example 1, provides a gas mixing device, such as... Figure 1 , Figure 2 and Figure 3 As shown, the control valve includes a pressure regulating valve 15 and an input valve 16, which are respectively connected to the gas supply pipe 14. The pressure regulating valve 15 and the input valve 16 are configured to manually control the flow rate of high-pressure gas along the gas supply pipe 14, while the input valve 16 is configured to control whether the high-pressure gas enters the mixing tank 1, thereby adjusting the gas pressure within the mixing tank 1 and ensuring that the mixing process takes place under safe pressure conditions.

[0030] Example 3, based on Example 2, a gas mixing device, such as... Figure 1 and Figure 2As shown, an exhaust pipe 21 is provided on one side of the gas storage tank 13, and an exhaust valve 22 is provided on the exhaust pipe 21. If the pressure of the gas storage tank 13 exceeds a set value, some gas can be discharged through the exhaust pipe 21 and the exhaust valve 22 to reduce the pressure of the gas storage tank 13. By setting the exhaust pipe 21 and the exhaust valve 22, excessive pressure in the gas storage tank 13 can be effectively discharged, thereby protecting the operational safety of the entire equipment.

[0031] Example 4, based on any one of Examples 1 to 3, a gas mixing device, such as... Figure 1 , Figure 2 and Figure 5 As shown, the circulating heating mechanism is located outside the mixing tank 1 and includes a heating water tank 3, a heater 4, a delivery pipe 5, a water pump 6, and a spiral heating pipe 7. One end of the delivery pipe 5 is connected to the heating water tank 3, and the other end is connected to the spiral heating pipe 7. The heater 4 is installed at the top of the heating water tank 3, with its heating end extending into the interior of the heating water tank 3. The water pump 6 is installed on the delivery pipe 5, and the spiral heating pipe 7 is sleeved on the outer surface of the mixing tank 1. The circulating heating mechanism, including the heating water tank 3, heater 4, delivery pipe 5, water pump 6, and spiral heating pipe 7, can effectively provide and regulate the temperature inside the mixing tank 1. The heater 4 transfers heat to the water in the heating water tank 3, and then, through the water pump 6 and delivery pipe 5, the hot water is delivered to the spiral heating pipe 7. The hot water in the spiral heating pipe 7 heats the mixing tank 1. The presence of the circulating heating mechanism can increase the chemical reaction rate, change the gas density to improve the mixing situation, and has a significant impact on mixing efficiency and quality.

[0032] Example 5, based on Example 4, a gas mixing device, such as... Figure 1 As shown, the spiral heating tube 7 has a circulation inlet 17 and a circulation outlet 18 at both ends. Two delivery pipes 5 are installed on the mixing tank 1, located above and below it respectively. The upper delivery pipe 5 is connected to the circulation inlet 17, and the lower delivery pipe 5 is connected to the circulation outlet 18. The circulation inlet 17 and circulation outlet 18 are designed so that the high-temperature water heated by the heater 4 at the top of the heating water tank 3 flows out through the upper delivery pipe 5 and enters the spiral heating tube 7 through the circulation inlet 17; the low-temperature water, having transferred its heat, flows out through the circulation outlet 18 of the spiral heating tube 7 and flows into the bottom of the heating water tank 3 through the lower delivery pipe 5. This facilitates the separation of low-temperature and high-temperature water, ensuring the water temperature flowing into the circulation inlet 17 is maintained, effectively transferring the heat generated by the heater 4 to the mixing tank 1, and improving heating efficiency.

[0033] Example 6, based on Example 5, a gas mixing device, such as... Figure 1 and Figure 2As shown, the mixing tank 1 is externally fitted with an insulation shell 27. The spiral heating tube 7 is located between the mixing tank 1 and the insulation shell 27. A temperature display 26 extending out of the insulation shell 27 is provided on the spiral heating tube 7. The insulation shell 27 prevents heat loss from the spiral heating tube 7 and facilitates the transfer of heat from the spiral heating tube 7 to the mixing tank 1. The temperature display 26 is designed to display the temperature inside the mixing tank 1 in real time. The temperature display 26 on the spiral heating tube 7 provides a direct reading of the internal temperature of the mixing tank 1, helping the operator monitor and control the temperature during operation.

[0034] Example 7, based on Example 6, a gas mixing device, such as... Figure 1 , Figure 2 and Figure 5 As shown, the gas input pipe includes a first gas input pipe 19 and a second gas input pipe 20, which are respectively connected to the tank cover 2. The configuration of the first gas input pipe 19 and the second gas input pipe 20 provides more input paths for gas, facilitating the addition and replacement of gas.

[0035] Example 8, based on Example 7, provides a gas mixing device, such as... Figure 1 , Figure 2 and Figure 5 As shown, the tank lid 2 is provided with an observation port 23 and a detection tube 24, and a cap 25 is provided at the observation port 23. The observation port 23 is designed to allow the operator to conveniently monitor the state inside the mixing tank 1. The observation port 23 allows the operator to directly observe the internal conditions of the mixing tank 1, while the detection port 24 allows various sensors to be inserted to obtain data such as temperature and pressure inside the mixing tank 1, which helps the operator to accurately control the mixing process. The cap 25 is provided to protect the observation port 23. The observation port 23 is formed by sealing the opening of the tank lid 2 with glass.

[0036] Example 9, based on any one of Examples 1-3, 5, 6, 7, and 8, a gas mixing device, such as... Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, the mixing tank 1 is equipped with a stirring mechanism. The stirring mechanism includes a sleeve 10 and a stirring shaft 9. A spiral stirring blade 11 is connected to the outside of the sleeve 10. One end of the stirring shaft 9 extends into the mixing tank 1 and connects to the inside of the sleeve 10. The other end of the stirring shaft 9 passes through the tank cover 2 and extends outwards. A stirring motor 8 is connected to the tank cover 2, and the extended end of the stirring shaft 9 is connected to the stirring motor 8. The stirring mechanism includes the stirring motor 8, the stirring shaft 9, the sleeve 10, and the spiral stirring blade 11. These components work together to provide a powerful stirring force, enabling different gases to be thoroughly mixed.

[0037] Example 10, based on Example 9, provides a gas mixing device, such as... Figure 1 , Figure 2 , Figure 4 ,and Figure 5 As shown, the spiral stirring blade 11 is provided with through holes 12; at least two through holes 12 are evenly arranged on the spiral stirring blade 11. The spiral stirring blade 11 is provided with through holes 12, which reduces the direct contact area between the gas and the blade, lowers frictional resistance, improves stirring efficiency, and ensures the uniformity of mixing. The even arrangement of at least two through holes 12 along the spiral stirring blade 11 is to further reduce the direct contact area between the gas and the blade, and further improve stirring efficiency.

[0038] In Example 10, source gas is input into mixing tank 1 through the first source gas input pipe 19 or the second source gas input pipe 20 as needed. The stirring motor 8 of the stirring mechanism is started, driving the stirring shaft 9 and the spiral stirring blades 11 to stir, so that the gas in mixing tank 1 is mixed. At the same time, the circulating heating mechanism starts to work. The heater 4 heats the water in the heating water tank 3, and then sends the heated water into the spiral heating tube 7 through the water pump 6 and the delivery pipe 5. The spiral heating tube 7 transfers heat to mixing tank 1 through contact with mixing tank 1, so that the temperature inside mixing tank 1 rises. To promote gas mixing, since heating will cause the gas pressure to rise, it is necessary to adjust the pressure inside the mixing tank 1 through a pressure regulating mechanism. This is achieved through the gas storage tank 13, the gas delivery pipe 14, the pressure regulating valve 15, and the input valve 16. When the pressure inside the mixing tank 1 exceeds the set value, the pressure regulating valve 15 and the input valve 16 are opened to allow some of the gas inside the mixing tank 1 to flow into the gas storage tank 13, thereby reducing the pressure inside the mixing tank 1. The outer layer of the pressure mixing tank 1 is provided with a heat insulation shell 27, and the spiral heating tube 7 is installed between the outer layer of the mixing tank 1 and the heat insulation shell 27, which helps to prevent the heat of the spiral heating tube 7 from being lost. When the pressure in the gas storage tank 13 also exceeds the set value, the gas is released through the exhaust pipe 21 and exhaust valve 22 to reduce the pressure in the gas storage tank 13. During the process, opening the cover 25 and the observation port 23 allows the operator to directly observe the inside of the mixing tank 1. Various sensors can be inserted into the detection port 24 to obtain data such as the temperature and pressure inside the mixing tank 1. Finally, the temperature display 26 on the spiral heating tube 7 can provide a direct reading of the temperature inside the mixing tank 1, helping the operator to monitor and control the temperature during operation.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gas mixing device, comprising a mixing tank (1), characterized in that, The mixing tank (1) is detachably connected to a tank cover (2) at its open end. A gas source input pipe is provided on the tank cover (2). A circulating heating mechanism and a pressure regulating mechanism are connected to the mixing tank (1). The pressure regulating mechanism includes a gas storage tank (13) located on the side of the mixing tank (1). A gas transmission pipe (14) is provided between the gas storage tank (13) and the mixing tank (1). The two ends of the gas transmission pipe (14) are respectively connected to the gas storage tank (13) and the mixing tank (1). A control valve is provided on the gas transmission pipe (14). The control valve includes a pressure regulating valve (15) and an input valve (16), which are respectively connected to the gas supply pipe (14); The gas storage tank (13) is provided with an exhaust pipe (21) on one side, and an exhaust valve (22) is provided on the exhaust pipe (21). The circulating heating mechanism is located outside the mixing tank (1) and includes a heating water tank (3), a heater (4), an infusion pipe (5), a water pump (6), and a spiral heating pipe (7). One end of the infusion pipe (5) is connected to the heating water tank (3), and the other end of the infusion pipe (5) is connected to the spiral heating pipe (7). The heater (4) is installed at the top of the heating water tank (3), and the heating end of the heater (4) extends into the interior of the heating water tank (3). The water pump (6) is installed on the infusion pipe (5), and the spiral heating pipe (7) is sleeved on the outer surface of the mixing tank (1).

2. The gas mixing device according to claim 1, characterized in that: The spiral heating tube (7) is provided with a circulating water inlet (17) and a circulating water outlet (18) at both ends. The mixing tank (1) is provided with two infusion pipes (5). The two infusion pipes (5) are located above and below the mixing tank (1). The infusion pipe (5) located above is connected to the circulating water inlet (17), and the infusion pipe (5) located below is connected to the circulating water outlet (18).

3. The gas mixing device according to claim 2, characterized in that: The mixing tank (1) is covered with an insulation shell (27), and the spiral heating tube (7) is located between the mixing tank (1) and the insulation shell (27). The spiral heating tube (7) is provided with a temperature display (26) extending out of the insulation shell (27).

4. The gas mixing device according to claim 3, characterized in that: The gas input pipe includes a first gas input pipe (19) and a second gas input pipe (20), which are respectively connected to the can lid (2).

5. The gas mixing device according to claim 4, characterized in that: The can lid (2) is provided with an observation port (23) and a detection tube (24), and a cap (25) is provided at the observation port (23).

6. The gas mixing apparatus according to any one of claims 1-5, characterized in that: The mixing tank (1) is equipped with a stirring mechanism; the stirring mechanism includes a sleeve (10) and a stirring shaft (9). The sleeve (10) is connected to a spiral stirring blade (11). One end of the stirring shaft (9) extends into the mixing tank (1) and is connected to the inside of the sleeve (10). The other end of the stirring shaft (9) passes through the tank cover (2) and extends out. The tank cover (2) is connected to a stirring motor (8). The extended end of the stirring shaft (9) is connected to the stirring motor (8).

7. The gas mixing device according to claim 6, characterized in that: The spiral stirring blade (11) is provided with through holes (12); a plurality of the through holes (12) are evenly arranged on the spiral stirring blade (11).

Images